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Home My WebLink About940121.tiff RESOLUTION RE: APPROVE CLOSURE/POST-CLOSURE PLAN FOR CENTRAL WELD/GREELEY-MILLIKEN SANITARY LANDFILL - WASTE SERVICES CORPORATION WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to Colorado statute and the Weld County Home Rule Charter, is vested with the authority of administering the affairs of Weld County, Colorado, and WHEREAS, the Board has been presented with a Closure/Post-Closure Plan for Central Weld/Greeley-Milliken Sanitary Landfill from Waste Services Corporation, and WHEREAS, said plan concerns property described as part of the SE,' SW,' of Section 32, Township 5 North, Range 66 West of the 6th P.M. , Weld County, Colorado, and WHEREAS, a hearing before the Board was held on January 5, 1994, at which time the Board deemed it advisable to continue said matter to February 2, 1994, to allow the Weld County Health Department and the Colorado Department of Health adequate time to review said plan, and WHEREAS, at said hearing on February 2, 1994, the applicant was represented by Arthur Roy, Attorney, Marian King, Counsel for Waste Services, and Leonard Butler, Engineer for Waste Services, and WHEREAS, the Board of County Commissioners heard all of the testimony and statements of those present, has studied the request of the applicant and the recommendations of the Weld County Planning Commission and all of the exhibits and evidence presented in this matter and, having been fully informed, finds that this request shall be approved for the following reasons: 1. The submitted application materials are in compliance with the Board of County Commissioners Resolution set forth on October 13, 1993, regarding guidelines for excavation, remediation activities and closure/post-closure requirements for the property. 2. The Closure/Post-Closure Plan has been approved by the Colorado Department of Health, Waste Management Division, and the Weld County Health Department, Environmental Protection Division. The Closure/Post-Closure Plan meets the Colorado regulations pertaining to Closure and Post-Closure of Solid Waste Disposal Sites and Facilities (6 CCR 1007-2) . 940121 Pw(P.37 it/ i1t1 Q"7; tots -5vcs , CA (ULO RE: CLOSURE/POST-CLOSURE PLAN - WASTE SERVICES CORPORATION PAGE 2 NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of Weld County, Colorado, that the Closure/Post-Closure Plan for Central Weld/Greeley- Milliken Sanitary Landfill submitted by Waste Services Corporation be, and hereby is, approved subject to the following conditions: 1. A copy of the Board of County Commissioners Resolution, dated October 13, 1993, be appended to the Closure/Post-Closure Plan as a reference document. 2. Approval of the Closure/Post-Closure Plan is not intended to affect the enforceability of the October 13, 1993, Board of County Commissioners Resolution. The above and foregoing Resolution was, on motion duly made and seconded, adopted by the following vote on the 2nd day of February, A.D. , 1994. ila4egg BOARD OF COUNTY COMMISSIONERS ATTEST: WELD COOUNTY, C/lQLO gRADOO "� Weld County Clerk to the /1%1. /d ilaA4g`- 7) W Webster, Chairman BY: qqqqqq^^^^^^Deputy Clerk to the Bo Dale . Hall, YrTem APPROVED AS TO FORM: t c / org9/C Baxter / P. County Atto ney Constance L. Harbert /Barbara J. Kirkm er 940121 HEARING CERTIFICATION DOCKET NO. 94-01 RE: CLOSURE/POST-CLOSURE PLAN FOR CENTRAL WELD/GREELEY-MILLIKEN SANITARY LANDFILL - WASTE SERVICES CORPORATION A public hearing was conducted on February 2, 1994, at 10:00 A.M. , with the following present: Commissioner W. H. Webster, Chairman Commissioner Dale K. Hall, Pro-Tem Commissioner George E. Baxter Commissioner Constance L. Harbert Commissioner Barbara J. Kirkmeyer Also present: Acting Clerk to the Board, Shelly Miller Assistant County Attorney, Lee Morrison Planning Department representative, Gloria Dunn The following business was transacted: I hereby certify that pursuant to a notice dated October 13, 1993, and duly published December 23, 1993, in the Windsor Beacon, a public hearing was conducted on January 5, 1994, to consider a Closure/Post-Closure Plan for Central Weld/Greeley-Milliken Sanitary Landfill submitted by Waste Services Corporation. Let the record reflect a notice of continuance, dated January 5, 1994, was mailed to all persons as indicated on the Certificate of Mailing dated January 11, 1994, as requested by Commissioner Kirkmeyer. Lee Morrison, Assistant County Attorney, made this a matter of record and noted this matter being considered in a public hearing was a result of the Board's prior resolutions concerning the on- going operation of the landfill. Gloria Dunn, Planning Department representative, entered the Planning Commission's recommendation for approval into the record as written. She presented to the Board a memo dated January 28, 1994, from the Health Department concerning the Agreement between Waste Management Disposal Services of Colorado, Inc. and the Ashton-Daniels Neighborhood Association and its attachment to the proposed plan. (Said memo was later marked as Exhibit R for the record. ) Arthur Roy, Attorney representing Waste Services, indicated the proposed Closure/Post-Closure Plan had been reviewed and approved by the State and County Health Departments, the Planning Commission, and the Planning staff. Leonard Butler, Engineer for Waste Services, gave a technical overview of said plan which consisted of the major elements for cover and monitoring. He explained the proposed landscaping, the post-closure period and activities, and the results of groundwater monitoring. Marian King, Counsel for Waste Services, reiterated that the plan had been approved by the County and State Health Departments and indicated one element of the plan addresses placement of cover and vegetation; however, upon the Neighborhood's request, a landscaping plan is being developed. She further explained trees will be planted and they will be working with the Neighborhood concerning the landscaping; however, it would be three years before closure. Ms. Dunn referred to a letter, dated February 1, 1994, from Bill Hedberg of Waste Services Corporation, indicating the proposed landscape plan was developed in a spirit of cooperation. Greg Hobbs, Attorney representing the Neighborhood, indicated they are in agreement with Waste Services and requested the agreement reached on October 13, 1993, be attached to the proposed plan as an appendix. He stated they have no objections to the plan with the enforceable resolution as a supplement and referred to the favorable recommendation of the Colorado Health Department as indicated in a letter dated January 27, 1994, Exhibit Q for the record. In response to a question from Commissioner Kirkmeyer, Mr. Hobbs said his request of December 31, 1993, to incorporate the resolution by reference would be satisfied if it were referenced as an appendix. Mr. Roy stated concern with attaching the resolution as an exhibit, indicating the plan governs all necessary issues. Ms. King also referred to the January 27, 1994, letter from the 940121 P LC.AP 37 RE: HEARING CERTIFICATION - WASTE SERVICES CORPORATION (CLOSURE PLAN) PAGE 2 Colorado Health Department and stated they would prefer to only attach the resolution to the plan rather than incorporate it by reference because there are other issues addressed in said resolution which are not applicable to closure. She indicated, for the record, that it is understood the resolution would be enforceable on its own terms. Mr. Hobbs reiterated the resolution needs to supplement the plan and they do not want it to go forward without the resolution attached. He clarified the agreement was merged with the resolution and are now one in the same. Mr. Hobbs said he has no objection to Ms. King's statement; however, he objected to Mr. Roy's statement concerning the governing of the resolution. Michael Hayes, member of the Neighborhood, addressed the paving of Weld County Road 27.5 and requested Weld County Road 52 be oiled for dust control measures. Ms. King reviewed the history of the paving request which was incorporated in a resolution which indicated Waste Services would cooperate with the Neighborhood. She said they are working with and will continue to work with the Neighborhood; however, it is not an integral part of the plan, but an on-going effort. Commissioner Hall agreed the paving issued would be a separate matter, and Mr. Morrison indicated the realignment of Road 27.5 would be addressed with the Revised Special Review Permit #1012 for Waste Services following this hearing. He stated, however, Road 52 would not be included in that decision and noted a representative from the Colorado Health Department is present to clarify the resolution versus the agreement. Roger Doak, Colorado Health Department representative, said he would be willing to draft another letter with "agreement" deleted and "resolution" added. After discussion, Mr. Doak agreed, for the record, that "resolution" would be accurate. In response to a question from Commissioner Kirkmeyer, Mr. Morrison reiterated there is a vegetation element in the plan; however, the landscaping plan is not part of the plan, but rather part of the agreement which became the resolution. Mr. Hobbs confirmed the landscaping plan would be on-going, with a preliminary plan in existence, and that Waste Services is working with the Neighborhood and Weld County, which is appropriate. He said the details of the plan would be resolved cooperatively. Mr. Morrison further explained the County is involved to the extent of the road realignment and to ensure Waste Services is not forced to violate its permits because of the landscaping plan. Ms. King stated, in addition, the Health Department has jurisdiction over the site and closure to ensure the landscaping does not interfere. Cynthia Turner stated the Planning Department should be concerned with the proper buffer zones and acknowledgment of the landscaping plan would develop appropriate buffers. In response to a question from Commissioner Harbert, Mr. Morrison indicated the Health Department's primary concern would be potential interference with the closure by the landscaping, with the only mechanism of control by the Board being the cooperative landscaping plan being submitted for County review. He commented on vegetation versus landscaping and referenced Paragraph 5 of the resolution concerning provisions for future use. Commissioner Harbert strongly urged the Neighborhood and Waste Services to work with the County in finalizing the landscaping plan. Ms. King confirmed they will continue to work with the Neighborhood and the County to develop an acceptable plan. In response to a question from Commissioner Baxter, Mr. Morrison indicated legal satisfaction as long as the resolution is attached as an appendix to the plan and it is clear that the plan does not affect the enforceability of the agreement. He clarified today's action would not make the resolution ineffective and if there were future problems, it would not be used as a defense. Mr. Morrison indicated acknowledging the landscaping plan would not be a guarantee and asked for clarification as to whether Paragraph 1 of the resolution intended to include the landscape plan. Ms. King indicated the language in the resolution concerns only the vegetation element of the plan as approved by the Colorado Department of Health; however, they will continue to work in good faith on the landscaping plan, which she believes is satisfactory to both parties. Mr. Hobbs indicated they desired adjustment of the landscaping in the plan; however, he too 940121 RE: HEARING CERTIFICATION - WASTE SERVICES CORPORATION (CLOSURE PLAN) PAGE 3 believes an acceptable agreement will be made and suggested the Board acknowledge that the parties agree to work with the County concerning the landscaping plan. He further stated the two Conditions of Approval as recommended by the Planning Commission are acceptable and they support the plan. Mr. Morrison suggested adding a Condition of Approval 1t3 concerning the landscaping plan to be submitted to the County for final approval. Mr. Roy stated approving the plan conditional upon a landscaping plan that may or may not be finalized would make the plan retroactive to the Condition. Mr. Hobbs agreed the issue did not require an additional Condition, but he would like the landscaping plan acknowledged. Commissioner Hall moved to approve the Closure/Post-Closure Plan for Central Weld/Greeley-Milliken Sanitary Landfill submitted by Waste Services Corporation, based on the recommendations of the Planning staff and the Planning Commission, with the two Conditions of Approval as entered into the record and an acknowledgement of the understanding between Waste Services and the Neighborhood. Commissioner Kirkmeyer seconded the motion, which carried unanimously. Chairman Webster commended the parties for working together with minimal County involvement. This Certification was approved on the 7th day of February, 1994. APPROVED: ATTEST: /Sli�Al� BOARD OF COUNTY COMMISSIONERS /(r �(l ZZZGGGiiirir///7T WELD COUNTY, COLORADO Weld County Clerk to the Board By: � „ �1f Webster, hair Deputy Clerc to the Da el K. Hall, /yo m TAPE #94—07 (r �� .ch y Ge ge/E. Baxter DOCKET #94-01 /� Constance L. Harbert PL0637 /' (�"2A 1 AS(, o/ 2Ld /CL-y,.Li 00 Barbara J. Kirk eyer 940121 ATTENDANCE RECORD HEARINGS ARE AS FOLLOWS ON THIS 2nd DAY OF February 1994: DOCKET # 94-01 - Closure/Post-Closure Plan for Waste Services Corporation (01/05/94) DOCKET 11 94-14 - Revised Special Review Permit for Waste Services Corporation DOCKET # 94-13'- Change of Zone for Michael and Pamela Guttersen DOCKET I PLEASE write or print your name legibly, your address and the DOCKET 11 (as listed above) or the name of the applicant of the hearing you are attending. NAME ADDRESS HEARING ATTENDING 164c4.(9 .1� C3/3- .1-5a �ri G'i.....ti.tt (�,c)z i/o9— ta 17`- '' ?-"'% 72,4,,, ,,,,, �'7 peo -to . L'o, c-[s'. g e LC • �i i�T,Cc.0 — Z kt3 -n�9C w BLS o 2^41 c S)-e.,y 5 .nu,\ Par u . Cte,A .lo.ncL Act l L6stzlwul. , CO . a 0 LI — 13 R1 1�'— Thizar c %o S �( 'cY� Cr' Vim: 1 v�--�. G / � tv / ✓ \._,G�t. -1r+ 4't Yt( ',Iv,,LR � S,.tVr>'4` J tv �(r�u in itu64,0 ___411„-c,„ C O &icf crv.,vs 940121 ATTENDANCE RECORD HEARINGS ARE AS FOLLOWS ON THIS 5TH DAY OF JANUARY 1994: DOCKET 9 93-90 - COZ WILLIAM AND CHARLES JERKE DOCKET 9 94-01 - WASTE SERVICES CORP. CLOSURE PLAN (CENTRAL WELD LANDFILL) DOCKET 9 94-02 - USR GARY AND DOROTHY BJORKLUND DOCKET 9 94-03 - USR THOMAS AND BEVERLY TROSTEL PLEASE write or print your name legibly, your address and the DOCKET 11 (as listed above) or the name of the applicant of the hearing you are attending. NAME ADDRESS HEARING ATTENDING i 4.1 11. ft letV aAt ell It-,i ntil A Lilt an-49 'N.ti \l,(°3tct,1e.- 9'/7n> �r/G2//h c/(e 7/ 93 c _,, a,fro ,297ncwc n yi ' /.a -a //_ u �� da3S LIVC'(�' y7 ,ft ___-- 1''t tot,,,.0_, , .cleaO Lccift 1i. r�' r., c a O.) 9,1,C 3/ WeA 3t A/9Si/l1Z i c v , t.o,-.4. Li jil /3c v4 GUc 7L G,,-e e% ire' Lfb t.T/ c"4r -j.SO9 LA,-502 Co gotvs— 940121 EXHIBIT INVENTORY CONTROL SKEET Casen10 ( 1.1 ..e../TOL 3/4,,,, A., - boa.ate ,s,„ .,Cnf. C emck.,_• „do() Exhibit Submitted By Exhibit Description 1o//r A. ict (fGFJQrt� , IPoi < dtooawt2aw 1013 B. ' Jo /q0IRA 1. /eta) 4,011--,IM2 vz,u-ny t_Litio//3 c. Oka,. {n f RiulZ. Z death - ///is/9 -f-o etuatii, /I e he ' �fh��eL USC /0/9-2,_, 118 D. / ( t f ^n f Tat-A ae-ti- /3-4/93 lo l.(k,a-t-c, la/pi E. 9w h. ( '9s2Lc -u (47* /�/�9 F. n b( AiXtlin (-tnnu -tom U 7�� s/Jyrik `�Olue. ��2� dt..7ed. /�//93 At l/ 61411•1465 0. , t%J . Chzakt /Postekddag.,4d— (re)p ) 3/II p9vAlZ/ XF e-c- (4 thicaLat a(_a t.<-eC. f-1-427/93 - //,-/ t l Cc 2 �e �'��rn rvun�o fie : a� 9 /°?/L2//93 //747. ORM n no\ ru nt_n-Li it r COL mmai)k (,; rAwafi itA IN 0014 l bAIL 0 et-cut/1_ detAin ni , Ctpn hill ucui I CQ_ I 01q i o faux / rb9Uvr City, 071j I L. oo st 4/. o e. z , //iatn /led:bet/ 1V5 1 N. ildPr11/7y ,"l T/ ////1iteAt � o/ /lepiS iCL3 /u-teri D//eecllfrwiti.edottu7t 1r1 N. Ran nin9am71ussi ecn (den y1179 Cof7i/n(i ne;) 11 0. Aja>?ru rill Co�nmr. iar- keSeletiG ekioa-f7 4/1ei I , ?a 'Hi i./ ; r 0 L! tid6,2 I b-7 .1�l Q. ti H 1 R. 6") ` If 1 L l.�'49 1. iP/ L � und h/ J S. T. U. V. W. X. Y. Z. 940121 DATE: January 18, 1994 NAME: Waste Services Corporation ADDRESS: 6037 77th Avenue, Greeley, Colorado 80634 REQUEST: Closure/Post Closure Plan LEGAL DESCRIPTION: Part of the SE4 of Section 31, and part of the S2 of Section 32, T5N, R66W, and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken, north of Weld County Road 398. THE DEPARTMENT OF PLANNING SERVICES' STAFF RECOMMENDS THAT THIS REQUEST BE APPROVED FOR THE FOLLOWING REASONS: 1. The submitted application materials are in compliance with the Board of County Commissioners resolution set forth on October 13, 1993, regarding guidelines for excavation, remediation activities and closure/post-closure requirements for the property. 2. The Closure/Post-Closure plan has been approved by the Colorado Department of Health, Waste Management Division, and the Weld County Health Department, Environmental Protection Division. The Closure/Post-closure plan meets the Colorado regulations pertaining to Closure and Post-Closure of Solid Waste Disposal Sites and Facilities (6 CCR 1007-2) . The Department of Planning Services staff recommendation for approval is conditional upon the following: 1. The Closure/Post-Closure plan shall be amended to incorporate correspondence dated January 5, 1994, from Marian A. King, Waste Management, Inc. , West. 2. Approval of the Closure/Post-Closure plan is not intended to affect the enforceability of the October 13, 1993, Board of County Commissioners Resolution. 910121 BEFORE THE WELD COUNTY, COLORADO, PLANNING COMMISSION RESOLUTION OF RECOMMENDATION TO THE BOARD OF COUNTY COMMISSIONERS Moved by Bill O'Hare that the following resolution be introduced for passage by the Weld County Planning Commission. Be it resolved by the Weld County Planning Commission that the application for: APPLICANT: Waste Services Corporation (Continued from December 21, 1993) REQUEST: Closure/Post-Post Closure Plan. LEGAL DESCRIPTION: Part of the SE4 of Section 31 and part of the S2 of Section 32, T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken be continued, based on the recommendation of the Department of Planning Services' staff to January 18, 1994, at 1:30 p.m. The State and County Health Departments have not yet completed their reviews of the Closure/Post-Closure Plan. The plan must be approved by these referral agencies prior to consideration by the Planning Commission and Board of County Commissioners. Bud Clemons seconded the motion. VOTE: For Passage Against Passage Richard Kimmel Bill O'Hare Shirley Camenisch Ron Sommer Juliette Kroekel Tom Rulon Bud Clemons Judy Yamaguchi The Chairperson declared the resolution passed and ordered that a certified copy be placed in the file. CERTIFICATION OF COPY I, Sharyn Ruff, Recording Secretary for the Weld County Planning Commission, do hereby certify that the above and foregoing resolution is a true copy of the resolution of the Planning Commission of Weld County, Colorado, adopted on January 4, 1994. a • the 4th of January, 4. aryn F. uff Secretary 9Il $121 NOTICE Pursuant to the zoning laws of the State of Colorado and the Weld County Zoning Ordinance, a public hearing will be held in the Chambers of the Board of County Commissioners of Weld County, Colorado, Weld County Centennial Center, 915 10th Street, First Floor, Greeley, Colorado, at the time specified. All persons in any manner interested in the Closure/Post-Closure Plan are requested to attend and may be heard. Should the applicant or any interested party desire the presence of a court reporter to make a record of the proceedings, in addition to the taped record which will be kept during the hearing, the Clerk to the Board's Office shall be advised in writing of such action at least five days prior to the hearing. The cost of engaging a court reporter shall be borne by the requesting party. BE IT ALSO KNOWN that the text and maps so certified by the Weld County Planning Commission may be examined in the office of the Clerk to the Board of County Commissioners, located in the Weld County Centennial Center, 915 10th Street, Third Floor, Greeley, Colorado. DOCKET NO: 94-01 APPLICANT Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 DATE: January 5, 1994 TIME: 10:00 a.m. REQUEST: Closure/Post-Closure Plan for Central Weld/Greeley-Milliken Sanitary Landfill LEGAL DESCRIPTION: Part of the SE; SW; of Section 32, Township 5 North, Range 66 West of the 6th P.M. , Weld County, Colorado BOARD OF COUNTY COMMISSIONERS WELD COUNTY, COLORADO BY: DONALD D. WARDEN WELD COUNTY CLERK TO THE BOARD BY: Shelly K. Miller Deputy Clerk to the Board DATED: October 13, 1993 ,^r ■ PUBLISHED: December 23, 1993, in the Windsor Beaconrift 2 (11993 \\ Weld Conti p 9�'C;121 NOTICE OF CONTINUANCE Pursuant to the zoning laws of the State of Colorado and the Weld County Zoning Ordinance, a public hearing will be held in the Chambers of the Board of County Commissioners of Weld County, Colorado, Weld County Centennial Center, 915 10th Street, First Floor, Greeley, Colorado, at the time specified. All persons in any manner interested in the Closure/Post-Closure Plan are requested to attend and may be heard. Should the applicant or any interested party desire the presence of a court reporter to make a record of the proceedings, in addition to the taped record which will be kept during the hearing, the Clerk to the Board's Office shall be advised in writing of such action at least five days prior to the hearing. The cost of engaging a court reporter shall be borne by the requesting party. BE IT ALSO KNOWN that the text and maps so certified by the Weld County Planning Commission may be examined in the office of the Clerk to the Board of County Commissioners, located in the Weld County Centennial Center, 915 10th Street, Third Floor, Greeley, Colorado. DOCKET NO: 94-01 APPLICANT Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 DATE: February 2, 1994 (continued from January 5, 1994) TIME: 10:00 a.m. REQUEST: Closure/Post-Closure Plan for Central Weld/Greeley-Milliken Sanitary Landfill LEGAL DESCRIPTION: Part of the SE'-,-, SWti of Section 32, Township 5 North, Range 66 West of the 6th P.M. , Weld County, Colorado BOARD OF COUNTY COMMISSIONERS WELD COUNTY, COLORADO BY: DONALD D. WARDEN WELD COUNTY CLERK TO THE BOARD BY: Shelly K. Miller Deputy Clerk to the Board DATED: January 5, 1994 D n� r=' �I JAN 1 1994L. 900121 r* MEMORAnDUM WilkBoard of County Commissioners January 5, 1994 To Data Gloria Dunn, Current Planner D COLORADO From Waste Services Corp. , Clo'3ure/Post-Closure Plan Subject: The Department of Planning Services requests that this proposal be continued to February 2, 1994, at 10:00 a.m. The State and County Health Departments have not yet completed their reviews of the Closure/Post-Closure Plan. The plan must be approved by these referral agencies prior to consideration by the Planning Commission and Board of County Commissioners. 9i 0121 BEFORE THE WELD COUNTY, COLORADO, PLANNING COMMISSION RESOLUTION OF RECOMMENDATION TO THE BOARD OF COUNTY COMMISSIONERS Moved by Shirley Camenisch that the following resolution be introduced for passage by the Weld County Planning Commission. Be it resolved by the Weld County Planning Commission that the application for: APPLICANT: Waste Services Corporation REQUEST: Closure/Post-Closure Plan LEGAL DESCRIPTION: Part of the SE4 of Section 31 and part of the S2 of Section 32, T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken. be continued, based on the recommendation of the Department of Planning Services' staff to January 4, 1994, at 1: 30 p.m. , to allow time for the State and County Health Departments to complete their reviews of the Closure/Post-Closure Plan. The plan must be approved by these referral agencies prior to consideration by the Planning Commission and Board of County Commissioners. Marie Koolstra seconded the motion. VOTE: For Passage Against Passage Bill O'Hare Shirley Camenisch Ron Sommer Marie Koolstra Richard Kimmel The Chairman declared the resolution passed and ordered that a certified copy be forwarded with the file of this case to the Board of County Commissioners for further proceedings. CERTIFICATION OF COPY I, Sharyn Ruff, Recording Secretary for the Weld County Planning Commission, do hereby certify that the above and foregoing resolution is a true copy of the resolution of the Planning Commission of Weld County, Colorado, adopted on December 21, 1993. Dated the 21 o ecember, 1993. i haryn F. f kic:\10 Secretary 940121 AIX-Iiiicfr mEmoRAnDum To WilkWeld County Planning Commission January 4, 1994 Date Gloria Dunn, Current Planner COLORADO From Waste Services Corp. Closure/Post-Closure Plan subject: The Department of Planning Services requests that this request be continued to the January 18, 1994 Planning Commission Meeting. The State and County Health Departments have not yet completed their reviews of the Closure/Post-Closure Plan. the plan must be approved by these referral agencies prior to consideration by the Planning Commission and Board of County Commissioners. 940 12 1 mEmoRAnDum Cscr*,Illik Weld County Planning Commission December 21, 1993 To Date Q Gloria Dunn, Current Planner COLORADO From Waste Services Corp. Closure/Post-Closure Plan Subject: The Department of Planning Services requests that the above-referenced proposal be continued to the January 4, 1994 Planning Commission Meeting. The State and County Health Departments have not yet completed their reviews of the Closure/Post-Closure Plan. The plan must be approved by these referral agencies prior to consideration by the Planning Commission and Board of County Commissioners. 940121 STATE OF COLORADO COLORADO GEOLOGICAL SURVEY oE.coto Division of Minerals and Geology "mob „� o Department of Natural Resources e** 1 313 Sherman Street, Rm. 715 *1g76* Denver,Colorado 80203 Phone(303) 866-2611 FAX (303)866-2461 Roy Ramer Governor Ken Salazar Executive Director Michael B.Long Division Director Vicki Cowart State Geologist and Director • December 13, 1993 WE-93-0011J • Ms. Gloria Dunn Weld County Planner • 1400 N. 17th Avenue Greeley, CO 80631 Dear Ms. Dunn: Re: Revised Application and Closure/Post Closure Plan for Special Review Permit 1012 We have received and reviewed the additional document relating to the operation and closure of the Central Weld Sanitary Landfill. • We believe the actions outlined in the excavation and grading plan proposed for the buffer property and the closure and monitoring plan proposed should result in a proper closure of this facility with little or no adverse impact on the surrounding environment. The plan appears to be protective of the public health and safety and we have no objection to its approval. We have not seen or reviewed the "Northwest French Drain and Culvert Drainage System Installation and Northwest Run-on Culvert Installation" and therefore cannot comment on this portion of the overall proposal but it appears that this plan has been adequately reviewed and approved by others and we will defer to their judgement in this regard. Yours very truly, /! Jeffrey L. Hynes Senior Engineering Geologist JH:B:\dln jDE17 1993 cc: WSC - Bill Hedberg Weld County Planning 940121 < fe IIiiikki 6 COMMUNITY DEVELOPMENT City e 1000 10TH STREET, GREELEY, COLORADO 80631 (303) 350-9780\ Greeley December 15, 1993 Gloria Dunn Department of Planning Services Weld County Administrative Offices 1400 North 17th Avenue Greeley CO 80631 Dear Gloria: Waste Services Corporation Closure/Post-Closure Plan for Central Weld Sanitary Landfill The Greeley Planning Commission, at its regularly scheduled meeting on December 14, 1993, reviewed the above-referenced item. The Planning Commission found that: 1. The proposed closure plan complies with the Greeley Comprehensive Plan if it meets all requirements and receives approval of the Weld County Health Department. 2. Ensure that the implementation of the plan successfully remedies the environmental violations at the site and allows the successful reclamation of the area for open space and recreational use. The City of Greeley Planning Department appreciates the opportunity to review the request. If you have any questions, please feel free to contact me. Sincerely, 27Gr Fl be .vie Planne II DEC WE DEC 2u1993 ' 11 Weld County Planning I 9i3L . 2 .4 .3 The owner or operator must notify the Department and the local governing body having jurisdiction when the documents required by this section have been placed or added to the operating record. All information contained in the operating record must be furnished upon request or be made available at all reasonable times for inspection by the governing body having jurisdiction or the Department. - 2.5 CLOSURE OF SOLID WASTE DISPOSAL SITES AND FACILITIES 2.5 . 1 Sites and facilities shall be closed in accordance with the Act, and these regulations. 2.5.2 No person shall close a solid waste disposal site and facility without notifying the Department and the governing body having jurisdiction in writing at least _ ;� ,sixty (60) days in advance of the closure date. !)r2 r:----. . 2.5.3 Theoperator of a solid waste disposal site and facility shall notify the general public at least sixty (60) days in advance of the proposed closure date by placing signs of suitable size at the entrance to the site and facility. _2.5.4 Precautions shall be taken to prevent further use of the • _-- site and facility for unauthorized disposal. 2.5.5 Water pollution shall not occur at or beyond the point of compliance after closure. 2.5.6 Nuisance conditions shall not exist at or beyond the site boundary after closure (see also 2 .1.3) . 2 . 5.7 Permanent surface water diversion structures remaining after closure shall control run-on and run-off from the 100 year event. 2.5. 8 The owner or operator shall prepare a closure plan for approval by the Department after consultation with the local governing body having jurisdiction. The approved plan shall be placa'1 in the operating rernrd. 2. 5. 9 The owner or operator must begin closure activities of each disposal phase no later than thirty (30) days after final waste grades are reached. Extensions beyond the thirty (30) day deadline for beginning closure may be granted by the Department and the local governing authority if the owner or operator demonstrates that all JUNE 1993 (EFFECTIVE c yi r 55 \ DEC 2 8 1 DATE OCTOBER 9 , 1993) 'D 993 I Weld County Planning 94012'. steps necessary to prevent threats to human health and the environment from the active disposal phase will be taken. 2.6 POST-CLOSURE CARE AND MAINTENANCE STANDARDS 2. 6.1 The owner or operator of all solid waste disposal sites and facilities shall prepare a written post-closure plan to be approved by the Department after consultation with the local governing body having jurisdiction and shall place it in the operating record. 2. 6.2 For MSWLFs, the post-closure care period shall be established by the Department and the governing body having jurisdiction per Section 3 .6, shall be based on -the operating history of the site, and shall be at least - i ' thirty (30) ears. -- Thepost-closure care y period for - '= solid waste -disposal sites and facilities other than MSWLFs will be established by the Department and the r•:"-:governing body having jurisdiction: :-:- • =:7c_: __.. PART B SECTION 3 "STANDARDS FOR SOLID WASTE DISPOSAL LANDFILL SITES AND FACILITIES 3.0 PURPOSE, SCOPE AND APPLICABILITY 3 . 0. 1 It is the purpose and intent of these regulations as they apply to solid waste landfills (MSWLFs) to be equivalent to but not more stringent than the 40 CFR Part 258 while ' allowing the maximum flexibility of interpretation and application based upon the characteristics of the chosen site. 3 .0.2 This Section 3 also applies to non-MSWLF sites and facilities. On a case-by-case demonstration basis, the . application of these requirements to non-MSWLFs may be altered provided that the alternative standard is as protective of the environment and public health as the -_ - - ,.requirement•_specifj.ed in these regulations. 3.1 LOCATION RESTRICTIONS AND SITE STANDARDS - 3.1.1 Landfills that accept putrescible wastes which occur within 10, 000 feet (3048 meters) of any airport runway used by . - turbojet, or within 5, 000 feet (1, 523 meters) of any airport runway used only by piston-type aircraft shall not JUNE 30, 1993 • (EFFECTIVE DATE OCTOBER 9, 1993) 56 941011;7:7. of site. If sludge is to be received, its quality should be determined in accordance with Department technical guidelines. A listing of the waste stream types to be approved for routine receipt; (D) The number, classification, and job descriptions of personnel projected to be employed at the landfill when operating at full capacity; (E) Number, description, and uses of all equipment projected to be employed at the landfill when operating at full capacity; (F) The size and types of disposal cells or processing areas to be constructed; (G) The frequency of the application of adequate cover; (H) The types and heights of fencing to be placed on-site; - (I) Provisions to minimize nuisance conditions on-site; (J) Provisions for fire protection to eliminate open burning on-site, and to prevent the spread of open burning "'-'to "adjoining property; (K) Provisions for the retrieval of windblown solid wastes, on or off-site; (L) Conceptual plans to be implemented if the contamination of surface waters or ground waters occur, or if nuisance conditions are confirmed beyond the site boundary; and (M) The amounts and sources of water to be used on site for the control of nuisance conditions, fire protection, construction purposes and personnel use. '3 .3 .3 Quality assurance and quality control reports shall be developed and implemented for all engineered structures at - the landfill. 3 . 3 .4 Cover material requirements (A) The owners or operators of all landfills must cover disposed solid waste with six (6) inches of earthen material at the end of each operating day, or at more frequent intervals if necessary, to control disease vectors, fires, odors, blowing litter; and scavenging. (B) Alternative materials of an alternative thickness (other than at least six (6) inches of earthen material) may be approved by the Department and the governing body having jurisdiction, if the owner or operator demonstrates that the alternative material and thickness control nuisance conditions and scavenging without presenting a threat to human health and the environment. (C) The Department and the governing body having jurisdiction may grant a temporary waiver from the requirement of daily and intermediate cover requirements, if the owner or operator demonstrates that there are extreme seasonal climatic conditions that make meeting such JUNE 30 , 1993 (EFFECTIVE DATE OCTOBER 9, 1993) 63 9 , 0t • requirements impractical. Alternate approaches to daily cover as described above will be considered on a case-by- case basis for non-MSWLF's. 3 .3 .5 Sufficient amounts of adequate cover shall be readily available for use throughout the site's life and far closure to minimize nuisance conditions as necessary. 3.3 . 6 Adequate amounts of water shall be available for construction purposes and to minimize nuisance conditions, as necessary. 3.3 .7 Leachate and landfill gas condensate may be recirculated • __ over the landfill with specific approval by the Department and the local governing authority. . +3.4 RECORDKEEPING An operating record shall be maintained and ,-�..a-:r include, as a minimum, the following: -. (A)- Incoming waste volumes, itc (B) Water quality monitoring results, a'c' C E losive gas monitoring results, ��6S (D) Construction as-built details, and z,741 '_ (E) Variations from approved operations procedures. Ril___. (F) Any demonstration and waiver documentation required in these regulations. . 3.4.1 Following closure of landfills, the owner or operator :��_ _: shall: .rs (A) Record a notation on the deed to the facility property, or some other instrument that is normally examined during title search; and ; (B) Notify the Department and the local governing body having , ._ . jurisdiction that notation has been recorded and a copy has _ been placed in the operating record. The notation on the deed must in perpetuity notify any potential purchaser of the property that: (1) The land has been used as a landfill facility; and (2) Its use is restricted under Section 3 . 6. 1(7) The Department after consultation with the local governing , body having jurisdiction may grant permission to remove the --- ----notation from -the deed if all wastes are removed from the facility. 3 .5 CLOSURE The owner or operator of a solid waste site and facility shall develop a closure plan which meets the following minimum criteria. JUNE 30 , 1993 (EFFECTIVE DATE OCTOBER 9 , 1993) 64 941C1.21. 3 .5. 1 (A) The closure plan shall be prepared and submitted to the Department for approval. The closure plan shall describe the steps necessary to close the landfill at any point during its active life. The closure plan, at a minimum, shall include the following information: (1) A description of the final cover system, designed in • -accordance with Section 3 .5.2 and 3.5.3 , And the methods - and procedures to be used to install the cover; (2) An estimate of the largest area of the landfill ever requiring a final cover during the active life; and (3) A schedule for completing all activities necessary to satisfy the closure criteria of this section. (B) Discrete units of a landfill may be closed = 'independently of closure of the entire facility. . 3.5.2 The final grades shall promote surface water run-off and == minimize erosion, and shall have slopes no less than 5% (20:1) and no greater than 25% (4 :1) . Variations from these standards may be acceptable if demonstrations of the adequacy of proposed variance are made to the Department by the owner or operator. =ai.ds r. _rte - - - - 3 .5.3 The final cover permeability shall not exceed that of the liner; and the final cover design shall be comprised of one .2 =c -` (1) of the following types: b 'd= ' A soil final cover design shall consist of the following: (1) An infiltration layer consisting of a minimum of 18 d^^' '-inches of earthen material that has a permeability of yes _ --c'less than or equal to the permeability of any bottom liner system or natural subsoils present, or a permeability no greater than 1 x 10-$ cm/sec, whichever is less, and (2) An erosion layer of earthen material a minimum of 6 inches in thickness that is capable of sustaining native ' plant growth. (B) A composite final cover design shall consist of the following components: ' (1) foundation layer to be comprised of a minimum six (6) inch soil layer, located immediately above the refuse , to provide a suitable , foundation for placement of the geomembrane. • (2) The barrier layer shall consist of a geomembrane which has a minimum 30-mil thickness and displays properties adequate for its intended purpose. Factors to be considered in determining barrier adequacy shall include, but are not limited to the following: (1) The effects of landfill settlement, (2) Permeability, JUNE 30, 1993 (EFFECTIVE DATE OCTOBER 9 , 1993) 65 910121 (3) Seam strength, (4) Friction properties, and (5) Puncture resistance. (6) Rooting layer comprised of a soil capable of supporting a root system and of sufficient thickness to protect the barrier layer and a seed bed layer of soil capable of supporting plant germination. The minimum thickness of the former layer shall be eighteen inches and the latter layer shall be six inches. . (C) Alternatives to the above designs may be approved by the Department based on waste type and site specific _ technical information. Proposals for alternative designs shall demonstrate that the final cover system will minimize • ,. .< - . .infiltration and erosion, and comply with Subsection 2.1. 15 e`V.I =-_ at the relevant point of compliance. Alternative designs ._include, but are not limited to the following: (1) Geocomposite materials, . Yd-enJ It• ' (2) Soil admixtures, (3) Polymers and (4) Variations of design components described in this :::Section 3 .5.3. • 3r 3 .5.4 -- The final cover shall be designed so that landfill gases _-will not adversely affect cover performance as described Jrin this Section 3.5. 8 _ Upon approval, and prior to beginning closure of each rc7.- ..: landfill phase, an owner or operator must notify the Department and place notice of the intent to close the phase in the operating record. 3 .5. 6 The owner or operator must commence closure activities of • -each landfill phase no later than 30 days after final refuse grades are reached. Extensions beyond the 30-day deadline far beginning closure may be granted by the Department if the owner or operator demonstrates that all steps necessary to prevent threats td human health and • the environment from the active landfill phase will be - • • taken. 3 . 5.7 The owner or operator must complete closure activities of _.._ each-landfill phase, •in- accordance with the closure plan, within one hundred eighty (180) days following the beginning of closure as specified in this section. Extensions of the closure period may be granted by the Department if the owner or operator demonstrates that closure will of necessity, take longer than one hundred eighty (180) days and the owner/operator has taken and JUNE 30 , 1993 ' (EFFECTIVE DATE OCTOBER 9, 1993) 66 3/7411 '71 will continue to take all steps to prevent threats to human health and the environment. 3 .5.8 Following closure of each landfill phase, the owner or operator must submit a report to the Department documenting that closure has been completed in accordance with the approved closure plan. The report, which must be signed by a Colorado registered professional engineer, . shall be approved by the Department and placed in the operating record. 3.6 POST-CLOSURE CARE AND MAINTENANCE . 3 .6.1 (A) Following closure of each landfill or landfill phase, -- - the owner or operator must conduct post-closure care which : shall consist of at least the following: (1) Provisions to prevent nuisance conditions; (2) Maintaining the integrity and effectiveness of the final cover, including making repairs to the cover as necessary to correct the effects of settlement, subsidence, erosion, or other events, and preventing run-on and run-off from eroding or otherwise damaging the final cover; ;! ,J=�__(3) Monitoring the ground water in accordance with the requirements of Subsection 2.2 And maintaining the ground water monitoring system, if applicable; (4) Maintaining and operating the leachate collection system in accordance with the requirements in Section 3 .2.5 (C) . The Department may allow the owner or operator to stop managing leachate if the owner or operator demonstrates that leachate no longer poses a threat to human health and the environment; (5) Maintaining and operating the gas monitoring system in accordance with the requirements Subsection 2 .3 . (6) Name, address, and telephone number of the person or office to contact about the facility during the past-closure period; and (7) A description of the planned uses of the property during the post-closure period. Post-closure use of the property shall not disturb the integrity of the final cover, liner(s) , or any other components of the containment system, or the function of the monitoring systems unless necessary to comply with the requirements in the Department' s regulations. The Department may approve any other disturbance if the owner or operator demonstrates that disturbance of the final cover, liner or other component of the containment system, including any removal of waste, will not increase the potential threat to human health or the environment. JUNE 30 , 1993 (EFFECTIVE DATE OCTOBER 9 , 1993) 67 91.0121 3 . 6. 1 (B) Discrete landfill units that can be monitored and maintained separately may be allowed to begin and end the • post-closure period independent of closure of the entire facility. 3.6.2 Following completion of the post-closure care period the - owner or operator must notify the Department that a certification signed by an independent Colorado registered professional engineer or approved by the Department and the local governing body having jurisdiction, verifying that post-closure care has been completed in accordance with the post-closure plan, has been placed in the operating record. ,a'3.6.3 Past-closure care must be conducted for a minimum of thirty - --(30) years. The length of the post-closure care period may be: (A) Decreased by the Department after consultation with the 9"- ' _ local governing body having jurisdiction if the owner -or as s , •- operator demonstrates that the reduced period is sufficient .s= =c-7-cto protect human-health and the environment; or ' ₹=o-&-":= =(B) Increased by the Department after consultation with the local 'governing body having jurisdiction if it is 9itr - =-' determined that the lengthened period is necessary to Sn".= ? -:protect human health and the environment. •_ SECTION 4 _ _ . __ . -=taCONSTRUCTION DEBRIS AND INERT MATERIAL LANDFILL SITES AND "FACILITIES [RESERVED] F';7-r. :7-z SECTION 5 ASBESTOS WASTE DISPOSAL SITES - 5.1 GENERAL PROVISIONS The following general provisions apply to all asbestos waste disposal areas. • -5. 1.1 (A) Any person who disposes of asbestos waste, receives • asbestos waste for disposal or permits asbestos waste to be disposed of on any facility or property which he operates or possesses, shall do so in compliance with the __ . . requirements of Sections 1.1 through 1.,9,._2,_ 3., . and 5 of these regulations. (B) If a conflict exists between the requirements of Sections 1.1 through 1.9, 2, and 3 and those of this Section 5, the requirements of Section 5 shall control. 5. 1. 2 Each asbestos waste disposal area shall comply with Colorado health laws and with the standards, rules and JUNE 30 , 1993 (EFFECTIVE DATE OCTOBER 9, 1993) 68 9z,"G121. HobbsTrout&Ra1ey ,PC ) :303-861-1963 JAN '94 8 :30 No .006 P .02 7-ilk Waft& ka4. PC. Attorneys At Law 1775 Sherman Street•Suite 1300 Denver, Colorado 80203 (303) 861.1963-Fax: (303)832-4465 Ext. 123 December 31, 1993 Weld County Commissioners 915 10th Street P.O. Box 758 Greeley, Colorado 80632 Attn: Ms . Connie Harbert, Q -5 04 Chairperson I,AN: tbOlus weld County Planning Commission gieldtV Department of Planning Services Weld county Administrative Offices 1400 North 17th Avenue Greeley, Colorado 80631 Attn: Mr. Chuck Cunliffe, Director Re: Closure/Post-Closure Plan and Buffer Property Special Review Permit, Central Weld County Sanitary Landfill Dear Planning Commission and County Commissioners: These comments are submitted on behalf of Sam and Myrtle Telep, Michael and Ann Hayes and Jane Carlson, members of the Ashton-Daniels Neighborhood Association. On October 13, 1993, the Weld County Commissioners held a public hearing on a proposed settlement agreement regarding closure of the Central Weld County Sanitary Landfill. That agreement and its exhibits were approved by the Commissioners as a result of the hearing and now takes the form of a Resolution with exhibits dated October 13, 1993 . The Resolution and exhibits thereto contain material conditions which govern operation of the landfill to its JAN 3 ' 94 8: 28 303 861 1963 PAGE . 002 ■0121 HobbsTrout&Raley .PC ) :303-861-1963 JAN 1 '94 8 :31 No .006 P .03 closure, as well as setting forth requirements regarding closure and post-closure. The closure/post closure plan for this site should and must include an incorporation by reference of the terms and conditions of the October 13, 1993, Resolution of the County Commissioners and all attachments thereto, particularly because the closure/post closure plan does not set them forth in their entirety. we have attached our proposed change to p. 2- 1, paragraph 2 . 1 . 1 which would add additional sentences to the text as follows: "This plan hereby incorporates by reference the resolution of the Weld County Commissioners dated October 13, 1993 , and all exhibits thereto, and all conditions and requirements of that resolution shall be considered to be material elements of this closure plan. That resolution and its exhibits are attached hereto as Appendix D. In the event of any conflict between the contents of that resolution and its exhibits and this plan, the conflict shall be resolved by giving effect to the resolution and its exhibits. " This incorporation by reference is required because of the agreement between Waste Services and the parties making these comments and by the resolution of the Weld County Commissioners of October 13, 1993, which now governs the use and operation of this site for a landfill. This change is also required to meet State regulations. For example, regulation 3 . 6. 1 (7) requires a description of the planned uses of the property during the post closure period. The closure/post-closure plan does not address this requirement whereas the October 13 , 1993, Resolution and exhibits contain requirements, procedures, and restrictions on the use of the property in the post-closure period. Moreover, Waste Services and the parties making these comments agreed in paragraph 11 of their agreement of October 1, 1993, that the parties "agree not to seek terms or conditions in any permits, plans or Resolutions that would conflict with the terms of this Agreement. ' The submitted closure/post closure plan, by not specifically incorporating the October 13, 1993, Resolution and the exhibits thereto conflicts with the Agreement because the plan contains materially less numerous, incomplete and less restrictive provisions than the Agreement and the Resolution and its exhibits . A copy of the October 13, 1993, Resolution is attached hereto. We have not attached the exhibits as they are best provided by Waste Services in a revised closure/post-closure 2 . JAN 3 ' 94 8 : 29 303 861 1963 PRGE . 003 ___ 940121 HobbsTrout&Raley .PC 2 : 303-861-1963 JAN r- ' 94 8 :31 No .006 P . 04 plan which responds to our comments. Pursuant to the Agreement of October 1, the parties making these comments do not oppose the approval of a closure/post- closure plan which fully incorporates as a material and enforceable part of the plan the October 13, 1993, County Commissioners Resolution and all exhibits thereto. Similarly, the parties do not oppose issuance of a special review permit for the buffer property. However, the parties making these comments again renew their request that those portions of weld County Road 27 1/2 and 49th Street which cause dust to deposit on their property and which cause a nuisance to these citizens, particularly 49th Street west of Road 27 1/2 where the Hayes Family resides and road 27 1/2 from the junction of 49th street to the landfill, be paved as soon as possible. Members of the Hayes and Telep families experience respiratory problems caused and aggravated by the road dust. Moreover, Sam and Myrtle Telep' s use and enjoyment of their ponds, wetlands, and nature reserve immediate upgradient of the landfill are materially injured by the road dust. We reiterate the necessity to protect the integrity of these ponds and wetlands in the road paving project . Issuance of the special review permit is likely to cause temporary increases in particulate matter in the vicinity of the landfill unless all available dust suppression measures, including paving, are undertaken. Therefore, it is reasonable and appropriate, especially given the efforts of these commenting parties to reach a successful disposition of a very divisive controversy over the landfill' s life and existence, to accomplish the paving in the immediate future as a nuisance and dust suppression mitigation measure in connection with approval of the closure/post-closure plan and special review permit for the buffer property. In making these comments, we reserve the right of Jane Carlson and her family not to have the paving of 49th street east of Road 27 1/2 occur until such time as that family makes such a request . Sincerely, c- ory J. H b s, Jr. for Hobbs, Trout & Raley, P.C. cc: Waste Services (Bill Jeffery, Marian King) Lee Morrison Sam and Myrtle Telep Mike and Ann Hayes Jane Carlson 3 . JAN 3 ' 94 8:30 303 861 1963 PAGE . 004 910121 HobbsTroutaRaley .PC T 303-861-1963 JRN 03 4 8 :32 No .006 P . 05 2.0 CLOSURE PLAN • • 2.1 JNT'RODTICTLON 2.1.1 Description This closure plan describes the steps necessary to close CWSL at any point during its active life. Waste disposal activities shall continue only until waste contours and elevations reached as shown in Figure 3.However, in no event shall waste disposal activities continue beyond December 31, 1997.Routine closure of the site will occur when the above conditions "- have been meet. Premature closure will occur if the facility is required to close prior to meeting these conditions. For this plan, premature closure costs have been estimated for the largest area of the site which would require closure during the operating life. This plan Ar will be reviewed annually and updated as needed. Mt-ft S LPL) f e c 6 y jr,lco2Poccz.r S 1 Y CSEFE.C�ccCL TH-r. RE o to wivc D cov;dty cotr �. cot,-( ° D�r `�` t� , t �3 2.1.2 Regulatory Reouirementa &-x 1-Et 3 ITS -U+SG,E.2 O omit A- L Co.ut,trta.uS Ac "A.E.qu, .1Fz KS of Tt-¢,r This closure plan is prepared in accordance with Section 2,5 of the Regulations and will be(c Scc oca/ • placed in the operating record. Sections 2.5 and 3.5 of the Regulations list a number of $ a- required actions during site closure. These requirements have been incorporated in the cou5e01 following list of closure activities. fq B E. V1,�Yie,-/2tAr, E Len€,i.,7`S Closure Plaito F TH r 1, Prepare a closure plan for approval by the Colorado Department of Health (CDH), pct` �' Weld County Commissioners and Weld County. This closure plan needs to include the ,., steps necessary to close the landfill at any point during its active life, a description of Rtsacu & the final cover system, an estimate of the largest area ever requiring closure, and a AiJb itS schedule for completing closure activities. -t-hCitTS !. Maintain a copy of the closure plan in the operating record. - A-TTA-Cl4f'u7 l4-ft€t`p #cS `RAE EU#VDo p ev •pevuy Co ,QFLLCT BETwEEjcj R�SO I u F- -t-e c,V Ab J O IT _S munwoonACWWW 2-1 _ t"� pwPt_ ct� TFtt S f�� . & amine 1991 gY G tit, a io EPFEcr o�vF� cirz SoLuttonJ AY-JD rt-S exvkcR� ' AY-JD JAN 3 ' 94 8: 30 303 861 1963 PRGE ..0005 9-0121 -• VI A Wei iC t✓',l a.;,�[r ��,nor, , ,.-� December 15, 1993 Roger Doak Colorado Department of Health Hazardous Materials & Waste Management Division 4300 Cherry Creek Drive South Denver, CO 80222-1530 SUBJECT: CENTRAL WELD SANITARY LANDFILL (CWSL) CLOSURE/POST-CLOSURE Dear Mr. Doak: This letter is in response to the Colorado Department of Health (CDH) letter of December 6, 1993 , regarding the Closure/Post- Closure Plan for Central Weld Sanitary Landfill. For your convenience, each CDH comment is provided below followed by CWSL's response. CDH Comment #1: "Page 1-3 . Item 1. 2 . 6, The Plan indicates the current ground water monitoring program includes 15 monitoring wells. However, the Division's records show 18 groundwater monitoring wells. Additionally, three monitoring wells were recently installed along the southern boundary of the buffer property. Based on the groundwater quality data from these wells, the Division will determine sample frequency and constituents. " CWSL Response: CWSL submitted a revised groundwater monitoring plan to the CDH and Weld County Department of Health (WCDH) on October 29 , 1993 , subsequent to the submittal of the Closure/Post-Closure Plan on October 12 , 1993 . The revised plan also requested approval for the decommissioning of one of the original 15 monitoring wells. The revised plan consists of 18 groundwater monitoring wells including the four (4) additional wells installed on the buffer property as requested by CDH and WCDH. The Closure/Post-Closure Plan will be amended to include monitoring of the 18 wells provided for in the revised groundwater monitoring plan. wp51\letter\cdhrespcls F: cwsl 4.15 940121 Letter Roger Doak December 15, 1993 Page 2 CDR Comment #2 : "Page 2 . 2, Item #1, The proposed final cover is comprised of a barrier layer with 18 inches of lx10-5 cm/sec material and six inches of an erosion layer. In the Division's judgement the final cover shall include a rooting layer which would be protective of the barrier layer. The rooting layer would consist of 6 to 12 inches of loosely compacted material between the barrier layer and erosion layer. In addition, a demonstration shall be made which shows the proposed permeability (1x10-5 cm/sec) will result in less infiltration then the surrounding natural infiltration. " CWSL Response: In accordance with the Colorado Solid Waste Regulations Pertaining to Solid Waste Disposal Sites and Facilities, 6 CCR 1007-2 (regulation) , CWSL selected the soil final cover design from alternatives allowed in Subsection 3 . 5. 3 (A) of the regulation. The soil final cover system described in the Closure/Post-Closure Plan for CWSL is designed to meet the requirements of Section 3 . 5. 3 (A) of the regulation (soil final cover design) which incorporated the federal Subtitle-D requirements for final cover design and permeability. The requirements for this cover design do not include a rooting layer. This layer would have been required had we selected the design alternative for a composite final cover as described in Subsection 3 . 5. 3 (B) of the regulations. The soil final cover design for CWSL incorporates final grades which have been designed to provide positive surface water runoff and minimize erosion. A minimum thickness of 1. 5 ft of soil which has permeability of lx10-5 cm/sec or less than or equal to the natural subsoils present at the site will be placed as the infiltration layer. A minimum of 6 inches of soil which is capable of sustaining native plant growth will be placed loosely over the infiltration layer. The erosion layer will be seeded with shallow- rooted native plant species. The technical information for CWSL supports the use of a cover permeability of lx10-5 cm/sec. Although not required by regulation, CWSL requested Rust Environment and Infrastructure (Rust) to perform a water balance using the computerized model entitled Hydrologic Evaluation of Landfill Performance (HELP) - Version 2 , which was developed by the Department of Army Waterways Experiment Station. The model considers the characteristics of cover soils, topography, refuse depths, vegetation, rainfall, liner systems, evaporation, and rainfall infiltration. wp51\letter\cdhrespcls F: cwsl 4.15 940121 Letter Roger Doak December 15, 1993 Page 3 The geotechnical parameters used to run the model were taken from data for CWSL. The results of the modeling conclude that the final cover design, the engineered final grade contours, and cover permeability of lx10-5 cm/sec are adequate to demonstrate that leachate would not be generated as a result of percolation of precipitation through the final cover. A copy of the HELP model is enclosed for your review. You further requested that a demonstration be made which shows the proposed permeability of lx10-5 cm/sec will result in less infiltration than the surrounding natural infiltration. As reported in the Hydrogeological and Geotechnical Characterization Report for CWSL prepared by Golder Associates Inc. (Golder) dated March 1993 , the uppermost geologic unit in this area was mapped by Colton (1978) as Quarternary Eolium. Eolium is a term introduced by Colton to designate wind-deposited silts and sands. This unit would be typical of surrounding natural soils. As demonstrated by the geometric mean value of in-situ hydraulic conductivity for silts and sands contained in the upper weathered bedrock of 9 . 2x10-4 cm/sec compared to lx10-5 cm/sec for the final cover system proposed at CWSL. Based on the above information, CWSL believes the final cover described in the Closure/Post-Closure Plan meets the requirements under the State regulations and is protective of the environment. CDR Comment #3: "Page 2-3 , Item #2 . 2 . 3 , A Quality Assurance/Quality Control (QA/QC) plan must be submitted to the division for review and approval, prior to commencement of final cover construction. For your reference, I've enclosed a copy of the Division's QA/QC guidance document for construction of soil liners and covers. " CWSL Response: CWSL assumes that the QA/QC document CDH is referring to is the document that will describe the construction quality assurance specifications to be followed during construction of the final cap. CWSL will prepare and submit these specifications to CDH and WCDH for approval prior to construction of any portion of the final cap. CDH Comment #4: "Page 3-2 , Item 1, The Plan indicates post-closure site inspections wp51\letter\cdhrespcls F: cwsl 4.15 9r0 ^ Letter Roger Doak December 15, 1993 Page 4 will be conducted annually. The Division requires that during the first two years, inspections are performed quarterly. This is to ensure vegetation is becoming established, subsidence and erosion of the final cover have not occurred, nuisance conditions have not developed and surface water control features are functioning as designed. " CWSL Response: CWSL agrees to perform post-closure site inspections on a quarterly basis for the first two years and annually thereafter during post- closure. CDH Comment #5: "Page 3-3 , Item #4, The Plan states, " . . .wells will be monitored semi annually for post-closure years 1-5 and annually thereafter. " The Division requires that quarterly monitoring be performed for the first two years. The effectiveness of groundwater remediation efforts at this facility are currently inconclusive and no analytical data from three recently installed ground water wells has been received. Therefore, a decision on frequency of post- closure monitoring, after the initial eight quarters, will be determined upon review of that data. " CWSL Response: CWSL agrees to perform groundwater monitoring on a quarterly basis for the first two years of the post-closure period. Also as requested by WCDH, CWSL agrees to perform groundwater monitoring semi-annually during years 3 to 5, then, annually thereafter for the remainder of the post-closure period. CDH Comment #6: "Page 3-4 , Item #7, Indicates surface water (underdrain and french drain outlets) will be monitored during the post/closure period. However, sampling and frequency and parameters were not discussed. Please provide this information. " CWSL Response: CWSL was issued a Colorado Discharge Permit System (CDPS) permit number CO-0043419 from the CDH Water Quality Control Division on December 7, 1993 . This permit authorizes CWSL to discharge water from the landfill underdrain (identified in the permit as outfall 001) into Spomer Lake #2, water from the eastern portion of the wp51\letter\cdhrespcls F: cwsl 4.15 9 0121 Letter Roger Doak December 15, 1993 Page 5 french drain (outfall 002) into an onsite retention pond, and water into Spomer Lake #2 from the western portion of the french drain (outfall 003) which is currently under construction and should be completed by December 31, 1993 , weather permitting. A copy of the permit is enclosed for your information. CWSL will conduct surface water monitoring of the underdrain and french drain discharge points in accordance with Part I and II of the permit. These sections identify effluent limitations, frequencies, sample types and other conditions set forth in the permit. CDH Comment #7: "Page 3-4 , Item #8 , If previously placed refuse is excavated during post-closure repairs, the Division and County shall be notified in writing within 30 days of the occurrence. " CWSL Response: CWSL agrees to notify the CDH and WCDH within 30 days if refuse is excavated during post-closure. CDH Comment #8: "Appendix A, Numerous pages of Appendix II For Assessment Monitoring" are missing. Please include this information. CWSL Response: Enclosed is the complete listing of Appendix II For Assessment Monitoring. CWSL apologizes for any inconvenience this may have caused you. CDH Comment #9: "Appendix B, Exhibit F page 3 , Terne oil filters shall be prohibited from disposal. Terne an alloy of lead and tin which tends to cause the filters to fail TCLP for lead. " CWBL Response: CWSL will not accept any regulated quantities of hazardous waste including Terne oil filters for disposal at the facility. CDH Comment #10: wp51\letter\cdhrespcls F: cwsl 4.15 9 I.? Letter Roger Doak December 15, 1993 Page 6 "Appendix C, The seeding recommendations described in the Soil Conservation (SCS) letter dated August 7, 1989 are for 1-5% slopes. The final grade slopes at CWSL are designed to be typically between 5% and 10%. The Division requests that seeding and revegetation be reevaluated to reflect final grade conditions at CWSL. CWSL Response: CWSL will consult with the Soil Conservation Service concerning seeding recommendations for 5% and 10% final grades slopes at the facility to ensure appropriate seeding and revegetation. CDH Comment 11: "Permanent surface water control structures shall be designed to control run-on and run-off from the 100 year, 24 hour storm event. Please provide this information. " CWSL Response: All permanent surface water diversion structures, including the culvert system in the northwest area, the perimeter runon/runoff control ditches and the detention basin, are designed to control run-on and run-off from the 100 year, 24-hour storm event in accordance with Section 2 . 1. 6 and 2 .5. 7 of the State regulations. Sheet 12 of 18 of the Site Development Plan (SDP) details the installation of an improved culvert system located in the northwest portion of the landfill. As discussed in Section 4 . 3 . 1 of the Design and Operations (D&O) Plan, this system will manage surface water run-on from upgradient agricultural areas through a corrugated metal pipe system that outfalls into a stilling basin located on the western portion of the buffer property. The design details for the culvert system have been approved and authorized by the WCDH, CDH and U.S. Army Corp. of Engineers. It is anticipated that the construction of the culvert system, including the french drain, will be completed by the end of 1993 , weather permitting. Surface water run-on entering the site along the remaining northeast portion of the landfill will be intercepted near the site boundary through a separate ditch which flows around the perimeter of the landfill. The flow continues to an existing drainage way east of the landfill on the buffer property. Stormwater runoff from the landfill is discussed in Section 4 . 3 . 2 of the D&O Plan. Stormwater run-off from the north side of the landfill will flow into a perimeter ditch and then to a stormwater wp51\letter\cdhreapcla F: cwsl 4.15 940121. Letter Roger Doak December 15, 1993 Page 7 detention pond located in the northeast corner of the site as shown on sheets 10, and 13 through 15 of the SDP. The drainage swale as shown on sheet 2 of the SDP may not need to be constructed due to the revised final slopes of 5% in this area. On October 1, 1993 , CDH determined that CWSL met the requirements for design and operation criteria under the State regulations, of which stormwater management is included and described in Section 4 . 3 of the D&O Plan for CWSL. Additionally, CWSL was issued a Colorado Discharge Permit System (CDPS) general permit and certification from the CDH Water Quality Control Division ( Certification No. COR 020207) on April 28, 1993 . The facility's certification under the general permit became effective on October 28, 1993 . This general permit authorizes CWSL to discharge stormwater from the facility that is associated with industrial activity. In accordance with permit conditions, a revised stormwater management plan and annual report was submitted to CDH on November 30, 1993 . This plan outlines procedures to manage stormwater in accordance with applicable regulatory requirements. Also, CWSL was issued a combined individual CDPS permit (No. CO 043419) for the discharge of water from the french drains, landfill underdrain and stormwater on December 7, 1993 . The effective date of this combined individual permit is January 6, 1994 . When this combined permit becomes effective, the general stormwater permit (certification COR-020207) will be inactivated. Under the terms of the combined individual permit, (CO-0434419) , CWSL will be authorized to discharge stormwater associated with industrial activity and landfill underdrain and french drain water from CWSL into waters of the State of Colorado. A copy of this permit is enclosed for you review. If you have any questions concerning our responses, please contact us at 654-1133 . Sincerely, Bill Hedberg Alan Scheere Division V.P. Landfill Operations Environmental Specialist As/as wp51\letter\cdhrespcls F: cwsl 4.15 941012? wp51\letter\cdhrespcls F: cwsl 4.15 940191 t.41‘\ � t • DEPARTMENT OF PLANNING SERVICES PHONE(303) 353.3845, EXT. 3540 WELD COUNTY ADMINISTRATIVE OFFICES 1400 N. 17TH AVENUE D air GREELEY, COLORADO 80631 • COLORADO DEC 131993 Weld County Pinning - DATE: November 22, 1993 TO: SURROUNDING PROPERTY/MINERAL OWNERS CASE NUMBER: Revised USR-1012 There will be a Public Hearing before the Weld County Planning Commission on Tuesday, December 21, 1993, at 1:30 p.m. , in the County Commissioners' Hearing Room, First Floor, Weld County Centennial Center, 915 10th Street, Greeley, Colorado concerning the request of: NAME: Waste Services Corporation FOR: A Site Specific Development Plan and a Revised Special Review permit for excavation of soil to be used for sanitary landfill cover in the A (Agricultural) zone district. LEGAL DESCRIPTION: Part of the SE4 of Section 31, and part of the S2 of Section 32, in T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken. Your property is within five-hundred (500) feet of the property on which this request has been made or you may have an interest in the minerals located under the property under consideration. For additional information write or telephone Gloria Dunn, Current Planner. Comments or objections related to the above request should be submitted in writing to the Weld County Department of Planning Services , 1400 N. 17th Avenue, Greeley, Colorado 80631, on or before the date of public hearing. )At'L%o — $' /9Y 5 62}Cfi-Figral bfAArt:t-, A-gitato" 9 1 rjeprue 6A• P' r c°63614,1 .Paste Services Corcoraticn -" yr, ]CC December 9 , 1993 Trevor Jiricek Weld County Department of Health 1617 - 16th Avenue Court Greeley, CO 80631 Subject: CENTRAL WELD SANITARY LANDFILL (CWSL) CLOSURE/POST-CLOSURE PLAN Dear Mr. Jiricek: This letter is in response to the Weld County Department of Health (WCDH) letter of November 18 , 1993 , concerning the Closure/Post- Closure Plan for CWSL. To facilitate your review, the WCDH comments are reiterated below, followed by the CWSL response: WCDH Comment #1: "The liner shall meet a permeability of not greater than 1 x 10-6 cm/sec rather than the proposed 1 x 10-5 cm/sec. Given that the facility is unlined, the Division feels that this is necessary in order to minimize the infiltration of moisture and reduce the potential for leachate production. " CWSL Response: The WCDH comment requires the "liner" meet a specified permeability. CWSL assumes that WCDH meant to state that the "final cover" meet the specified permeability. Final grades have been designed to provide positive surface water runoff and minimize erosion. A minimum thickness of 1. 5 ft of soil which has a permeability of 1 x 10-5 cm/sec or less than or equal to the natural subsoils present at the site will be placed as the infiltration layer. A minimum of 6 in of soil which is capable of sustaining native plant growth will be placed loosely over the infiltration layer. The erosion layer will be seeded with shallow- rooted native plant species. The technical information for CWSL supports the use of a cover permeability of 1 x 10-5 cm/sec. Rust Environment and Infrastructure (Rust) performed a water balance using the computerized model entitled Hydrologic Evaluation of Landfill Performance (HELP) - Version 2 , which was developed by the U.S. f: cwsl 4.15 as\1&m\dec09.01 940121 Trevor Jiricek December 10, 1993 Page 3 CARL Response: CWSL agrees to this monitoring frequency provided the Colorado Department of Health is also in agreement with this change. WCDH Comment #4: "The facility must submit details regarding how the facility is intending to demonstrate compliance with Section 2 . 5. 7 of the Regulations Pertaining to Solid Waste Disposal Sites and Facilities (the Regulations) . " CWSL Response: All permanent surface water diversion structures, including the culvert system in the northwest area, the perimeter runon/runoff control ditches and the detention basin, are designed to control run-on and run-off from the 100 year, 24-hour storm event in accordance with Section 2 . 1. 6 and 2 . 5.7 of the State regulations. Sheet 12 of 18 of the Site Development Plan (SDP) details the installation of an improved culvert system located in the northwest portion of the landfill. As discussed in Section 4 . 3 . 1 of the Design and Operations (D&O) Plan, this system will manage surface water run-on from upgradient agricultural areas through a corrugated metal pipe system that outfalls into a stilling basin located on the western portion of the buffer property. The design details for the culvert system have been approved and authorized by the WCDH, CDH and U.S. Army Corp. of Engineers. It is anticipated that the construction of the culvert system, including the french drain, will be completed by the end of 1993 , weather permitting. Surface water run-on entering the site along the remaining north- east portion of the landfill will be intercepted near the site boundary through a separate ditch which flows around the perimeter of the landfill. The flow continues to an existing drainage way east of the landfill on buffer property. Stormwater runoff from the landfill is discussed in Section 4 . 3 . 2 of the D & O Plan. Stormwater run-off from the north side of the landfill will flow into a perimeter ditch and then to a stormwater detention pond located in the northeast corner of the site as shown on sheets 10, and 13 through 15 of the SDP. The drainage swale as shown on sheet 2 of the SDP may not need to be constructed due to the revised final slopes of 5% in this area. It should be recognized that on October 1, 1993 , CDH determined that CWSL met the requirements for design and operation criteria under the State regulations, of which stormwater management is included and described in Section 4 . 3 of the D&O Plan for CWSL. f: cwsl 4.15 as\1&m\dec09.01 Trevor Jiricek December 10, 1993 Page 4 Additionally, CWSL was issued a Colorado Discharge Permit System (CDPS) permit and certification from the CDH Water Quality Control Division (Certification No. COR 020207) on April 28 , 1993 . This permit authorizes CWSL to discharge stormwater from the facility that is associated with industrial activity. In accordance with permit conditions, a revised stormwater management plan and annual report was submitted to CDH on November 30, 1993 . This plan outlines procedures to manage stormwater in accordance with applicable regulatory requirements. WCDH Comment #5: "According to page 1-3 , section 1. 2 . 6 of the plan "the current CWSL groundwater monitoring program includes 15 monitoring wells. " According to the Groundwater Monitoring Plan for Central Weld Sanitary Landfill, October 1993 , the facility will monitor 18 additional wells along the southern boundary of the buffer property, of which, the sampling frequency and parameters have yet to be determined. Please, clarify the discrepancy regarding the actual number of wells and discuss the proposed monitoring frequency, etc. of the three (3) additional wells. CWSL Response: CWSL submitted a revised groundwater monitoring plan to the CDH and WCDH on October 29, 1993 subsequent to the submittal of the Closure/Post-Closure Plan on October 12 , 1993 . The revised plan also requested approval for the decommissioning of one of the original 15 monitoring wells. The groundwater monitoring plan was revised to include the four (4) additional wells installed on the buffer property as requested by CDH and WCDH. The Closure/Post- Closure Plan will be amended to include monitoring of the 18 wells provided for in the revised groundwater monitoring plan. Three additional wells may be added to the groundwater monitoring plan at a later date. As adopted in the resolution by the Weld County Commissioners on October 13 , 1993 , and as indicated in Section 1. 2 . 6 of the Closure/Post-Closure Plan, the three additional wells installed on the southern property boundary of the site will be monitored, sampled and the samples analyzed, to establish initially a baseline and, thereafter, to measure changes in water quality, if any, from the time the wells are installed to expiration of the post-closure monitoring period as established by CDH. The wells will be sampled initially for analysis of volatile organic compounds. After collection of the initial data, the frequency of monitoring and parameters shall be determined by the CDH in consultation with WCDH. Accordingly, sampling frequency and parameters have yet to be determined. f: cwsl 4.15 as\1&m\dec09.01 Trevor Jiricek December 10, 1993 Page 5 WCDH Comment #6 : "On page 3-2 , #1 of the Plan, it indicates that the entire site will be inspected annually. Please provide the minimum qualifications of the inspector. CWSL Response: The individual (s) conducting post-closure inspections will have adequate knowledge and experience in landfill operations to enable them to evaluate the site for compliance with the requirements of Section 3 . 6 of the State regulations concerning post-closure care and maintenance. WCDH Comment #7 : Please define a "post-closure" repair as discussed on page 3-4 , #8 , of the Plan. Specifically, what type of repairs require the removal and replacement of refuse?" CWSL Response: Post-closure care and maintenance of the site may require certain repairs be completed on the site. Such repairs may be a result of differential settlement, subsidence or erosion of the final cover and require repair to maintain the integrity of the cap. Although not likely, repairs to the infiltration layer of the final cover as a result of significant subsidence or erosion may require temporary removal of minor amounts of refuse for recompaction and reconstruction of final cover. Repairs of piezometers, or additional . remediation measures may also require removal and replacement of small quantities of refuse. WCDH Comment #8: "Please discuss the frequency and constituents of post-closure surface water monitoring as discussed on page 3-4, #7, of the Plan. " CWSL Response: CWSL will conduct surface water monitoring in accordance with the Colorado Discharge Permit System (CDPS) permit, Certification No. : COR-020207 as discussed in Part 1, Sections D(c) and E of the permit. A copy of the permit is enclosed for your information. These sections identify monitoring requirements for stormwater including effluent parameters, frequencies, monitoring conditions, and sample types. f: cwsl 4.15 as\1&m\dec09.01 9401,1 Trevor Jiricek December 10, 1993 Page 6 If you have any questions concerning our responses, please contact us at 303-2641. Sincerely, zfr Bill Hedberg Alan Scheere Division Vice President - Environmental Specialist Landfill Operations Enclosures cc: Roger Doak, CDH, w/encl. Gloria Dunn, Weld County Planning Department, w/encl. Lee Morison, Weld County Attorney's Office, w/encl. f: cwsl 4.15 as\1&m\dec09.01 4012. FIELD CHECK DATE OF INSPECTION: December 15, 1993 APPLICANT'S NAME: Waste Services Corp. REQUEST: Closure/post-closure plan. LEGAL DESCRIPTION: Part of the SE4 of Section 31 and part of the S2 of Section 32, T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of Milliken. LAND USE: N Agricultural production, game preserve, pond E Rangeland S Weld County Road 398, agricultural production, 4 residences W Agricultural production ZONING: N A (Agricultural) E A (Agricultural) S A (Agricultural) W A (Agricultural) COMMENTS: Access to the site is from 77th Avenue, a paved road from the access of the landfill south to Weld County Road 398. The property slopes generally down to the south. Northwest corner of the site (wetlands) is under construction. The east buffer property is mix of agricultural uses: crop production, oil and gas equipment, rangeland. The majority of the proposed buffer area west of 77th Avenue is used for agricultural production except for the Sponer Lakes area on the west side. There is a fair amount of variation in elevation throughout the permitted area and proposed buffer property. Six or more residences are within 1/4 mile. Gloria [;unn Curr� Planner 940121 WEST GREELEY SOIL CONSERVATION DISTRICT 4302 West 9th Street Road Greeley, Colorado 80634 (303) 356-6506 December 15, 1993 Gloria Dunn, Current Planner Department of Planning Services Weld County Administrative Offices 1400 N. 17Th Ave. Greeley, CO 80631 Gloria: Our Board of Directors has finished the review of the Waste Services Corporation Closure/Post Closure Plan for the Central Weld County Landfill. Our major concern is the reclamation of the borrow area after the clay material is removed. Weld County South soil survey maps indicate sandstone close to the surface in this area. Alan Scheere of Waste Management provided me with the borehole log for both fields of the proposed borrow area that show varying depths of clay deposits. Our recommendations for the area are: 1. No area larger than 5 acres should be excavated at one time with reclamation following each individual excavation. 2 . No slopes greater than 3 : 1. 3 . At least 2 feet of clay material covering the bedrock with 8 inches of topsoil over the subsoil. 4 . Revegetation with native grasses suitable to the site. (We will provide seeding recommendations if desired. ) If you desire further information please call me at 356-6506. Sincerely, Michael G. Shay District Manager DEC IVE DEC 1 6 1993 11 Weld Counts Ph nI4 STATE OF COLORADO COLORADO DEPARTMENT OF HEALTH --- - Dedicated to protecting and improving the health and oe, eon environment of the people of Colorado � p> ir 4300 Cherry Creek Dr.S. I aboratory Building Denver, Colorado 110222-1530 4210 L,llth Avenue � Phone(30,9)G9?_2000 Denver,Colorado 740T20.4716 - �1 /976 (303)691-4700 il Roy garnerDecember 6, 1993 DEC 4 Governor 11993 Patricia A.Nolan,MD,MPI I Alan Scheere C7 a e Director Waste Services Corporation Were County Planning 6037 77th Avenue Greeley, Colorado 80634 RE: Closure Plan - Central Weld Sanitary Landfill (CWSL) Weld County Dear Mr. Scheere: The Hazardous Materials and Waste Management Division of the Colorado Department of Health as completed its review of the Closure/Post Closure Plan,(the Plan) for the CWSL, Weld County. The Plan was reviewed under the authority of the Solid Waste Disposal Sites and Facilities Act Title 30, Article 20, Part 1, CRS as amended and with the regulations promulgated thereunder 6 CCR-1007-2 (the Regulations). The Division has the following comments concerning the Plan: 1. Page 1-3, Item 1.2.6, The Plan indicates the current ground water monitoring program includes 15 monitoring wells. However, the Division's records show 18 ground water monitoring wells. Additionally,three monitoring wells were recently installed along the southern boundary of the buffer property. Based on the ground water quality data from these wells, the Division will determine sample frequency and constituents. 2. Page 2.2, Item #1, The proposed final cover is comprised a barrier layer with 18 inches of 1 x 10-5 cm/sec material and six inches of an erosion layer. In the Division's judgement the final cover shall include a rooting layer which would be protective of the barrier layer. The rooting layer would consist of 6 to 12 inches of loosely compacted material between the barrier layer and erosion layer. In addition, a demonstration shall be made which shows the proposed permeability(1X10-5 cm/sec) will result in less infiltration then the surrounding natural infiltration. 3. Page 2-3, Item #2.2.3, A Quality Assurance/Quality Control (QA/QC) plan must be submitted to the Division for review and approval, prior to commencement of final cover construction. For your reference, I've enclosed a copy of the Division's QA/QC guidance document for construction of soil liners and covers. 4. Page 3-2, Item 1, The Plan indicates post-closure site inspections will be conducted annually. The Division requires that during the first two years, inspections are preformed quarterly. This is to ensure vegetation is becoming established, subsidence and erosion of the final cover have not occurred, nuisance conditions have not developed and surface water control features are functioning as designed. Page 3-3, Item #4, The Plan states. "... wells will be monitored semi-annually for post-closure years 1-5 and annually thereafter." The Division requires that quarterly monitoring be performed for the first two years. The effectiveness of ground water remediation efforts at this facility are currently inconclusive and no analytical data from three recently installed ground water wells has been received. Therefore, a decision on frequaii y of f )stclosure monitoring, after the inilinl eight quarters, will he determined upon review of that data. 9a rti. ;13' .c;!, Mr. Alan Scheere Closure Plan - Central Weld Landfill December 6, 1993 Page 2 6. Page 3-4, Item #7, Indicates surface water (underdrain and french drain outlets) will be monitored during the post-closure period. However, sampling frequency and parameters were not discussed. Please provide this information. 7. Page 3-4, Item #8, If previously placed refuse is excavated during post-closure repairs, the Division and county shall be notified in writing within 30 days of the occurrence. 8. Appendix A, Numerous pages of "Appendix II For Assessment Monitoring" are missing. Please include this information. 9. Appendix B, Exhibit F page 3, Terne oil filters shall be prohibited from disposal. Terne is an alloy of lead and tin which tends to cause the filters to fail TCLP for lead. 10. Appendix C,The seeding recommendations described in the Soil Conservation Services (SCS) letter dated August 7, 1989 are for 1 - 5% slopes. The final grade slopes at CWSL are designed to be typically between 5%and 10%. The Division requests that seeding and revegetation be reevaluated to reflect final grade conditions at CWSL. 11. Permanent surface water control structures shall be designed to control run-on and run-off from the 100 year, 24-hour storm event. Please provide this information. These conclude the Division's comments on the Plan. The Division will not will not provide a decision on the Plan until these issues are addressed in a comprehensive document. If you have any questions regarding this matter, please contact me at 692-3437. Sincerely, Roger Doak Geologist Solid Waste Section Hazardous Materials and Waste Management Division enclosure cc: C. Cunliffe, Weld County Planning Department B. Hedberg, Waste Services Corporation T. Jiricek, Weld County Health Department Weld County Commissioners file: SW/WLD/CEN #6 9410 STATE OF COLORADO COLORADO DEPARTMENT OF HEALTH ,oe•co2o, Dedicated to protecting and improving the health and H\environment of the people of Colorado "(t,1719 6 7 43(10 CreekChcny Dr.S. abontory building *; Denver, Colorado 80222-1530 42101-. 11th Avenue ``1876 Phone(303)692-2000 Denver, Colorado 80220-3716 (303)691-4700 Roy Romer Governor MEMORANDUM Patricia A.Nolaq MD,Will l I XPCWivc Diretlor TO: Concerned Individuals FROM: Hazardous Materials and Waste Management Division Solid Waste Section DATE: July 28, 1993 SUBJECT: QA/QC GUIDANCE FOR LANDFILLS The Solid Waste Section of the Iazardous Materials ca ate Management Division of the Colorado Department of Health has recogni7 ct. n¢gd for consistency in the area of Quality Assurance/Quality Control (QA/Q ,t triAthe construction of clay harrier layers in landfill liners and caps. This .0 irces,document is an attempt to promote consistency in QA/QC for the future ce)Ktst uctly'n.of landfill liners and covers in Colorado. These recommendations were dgvelopcd by compiling data from three sources: (1) recently proposed and permitted sitr��++.<,ftt Colorado,'(2) the USEPA document "Design, Construction, and Evaluation of Clay I NV•for.Weste Management Facilities", (EPA/530/SW-86/0071 November I 988), and (Oc( i heats on the preliminary guidelines developed by CDH in January of this year. ..A) sr `-` The frequencies for testing listed in "Fable I were arrived at through a comparison of the preliminary recommended testing frequencies and the comments received. As in the preliminary guidance, the decision that the frequency of testing be the same for covers as for liners is predicated by the condition in the proposed State Solid Waste Regulations that the permeability of the cap be no greater than that of the liner. All Construction QA/QC results should be reviewed and approved by a Colorado register Professional Engineer. A construction QA/QC summary, along with testing results and as- built surveys, should be submitted to the Colorado Department of Health for review. These recommended tests and testing frequencies are provided as minimum guidance only. In some cases, more detailed testing may he required. However, in some cases, less testing may he appropriate. Facilities that propose significantly less testing should provide justification for the variation From this guidance. 940123. FABLE I GUIDANCE RECOMMENDATIONS FOR CONSTRUCTION QUALITY CONTROL TESTING OF LINER AND FINAL COVER BARRIER LAYER COMPONENTS FOR SOLID WASTE LANDFILLS TESTING FREQUENCY Atterberg Limits One per material type (liquid limit and plasticity or index-ASTM 4318) One per 3000 cu. yd. Sieve - Grain Size One per material type (ASTM D422 or DI140) or One per 3000 cu. yd. Permeability One per 5000 cu. yd. (ASTM 5084) Density - Nuclear Gauge One per 300 cu. yd. (ASTM D2922) Modified or Standard � One per material type Proctor Curve (as v '. or appropriate)ro�rialc '.,. • [P I ) \�\\\\ ) \S One per 3000 cu. yd. moisture vs. density ' (ASTM D698) Oven Dried . �A, ;k\ One per 1500 Cu. yd. Moisture Content • • -" , ' " (ASTM D2216) 11. •i'. 1l ' Sand Cone One per 15000 cu. yd. Density (ASTM D 1556) One-Point Proctor One per material type Notes: 1. Test frequencies are per cubic yard of placed and compacted material. 2. Lift thickness should not exceed S inches loose and 6 inches compacted. All lifts should he tested equally. A portion of permeability samples should he taken across lilt boundaries to verify bonding between lifts. 3. As a minimum, the following tests should be performed once per day for each day [hat material is placed: Nuclear Moisture-Density Test Oven-Dried Moisture Content, and One-Point Proctor. 4. All holes made in the cover or liner barrier layers for the purposes of these tests should he haeklillcd with henlonite pellets or chips and hydrated. 5. When options arc allowed in the testing frequcncv, the option that will result in a ?renterr frcc1ucney will apply. 9� t' 21 LAND-USE APPLICATION SUMMARY SHEET Date: December 14, 1993 NAME: Waste Services Corp. ADDRESS: 6037 77th Avenue Greeley, CO 80631 REQUEST: Closure/Post-Closure Plan. LEGAL DESCRIPTION: Part of the SE4 of Section 31 and part of the S2 of section 32, T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles north of Milliken. SIZE OF PARCEL: 100 acres, more or less. POSSIBLE ISSUES SUMMARIZED FROM APPLICATION MATERIALS: The criteria to be used in reviewing this proposal is found in the Board of County Commissioners Resolution of October 10, 1993 and State and County Health Departments recommendations. 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(.) 1 l'; co Co \ . © Q i '7 of 411 �5� • � / i t tia150/ - , • v✓ CJ and-�92 > T o s6n I ,- / _ - I! 4693 \ ,\ 4> A r Op I aTjb II � �. �4>O •. ` _E_ _n WPII' r 1 v� e^ 1 nii JO / �_� .\� ',Dam � ,� I14ns % J�!:.•I • •--°ITCH_." \ Y)r! . r 4746- 47 `. 4728 JN-ON // Qv s,''•' f ` _ it fl % p q 12 % I °° 9410 I:a I _. _... 11 I• /7) I REFERRAL LIST NAME: Waste Services Corporation REFERRALS SENT: November 22, 1993 REFERRALS TO BE RECEIVED BY: December 6, 1993 COUNTY TOWNS and CITIES _Attorney _Ault X Health Department _Brighton _Extension Service _Broomfield Emergency Management Office Dacono / Sheriff's Office _Eaton v//X Engineering _Erie _Housing Authority _Evans Airport Authority _Firestone _Building Inspection _Fort Lupton _Frederick STATE Garden City Division of Water Resources _Gilcrest X Geological Survey X Greeley X Department of Health _Grover _Department of Transportation _Hudson _Historical Society _Johnstown Water Conservation Board _Keenesburg V X Oil and Gas Conservation Commission Kersey X Division of Wildlife La Salle FIRE DISTRICTS Lochbuie _Ault F-1 _Longmont Berthoud F-2 _Mead Briggsdale F-24 X Milliken Brighton F-3 New Raymer _Eaton F-4 Northglenn Fort Lupton F-5 Nunn Galeton F-6 _Pierce _Hudson F-7 _Platteville _Johnstown F-8 Severance _La Salle F-9 Thornton _Mountain View F-10 _Windsor X Milliken F-11 Nunn F-12 COUNTIES _Pawnee F-22 _Adams Platteville F-13 _Boulder _Platte Valley F-14 _Larimer Poudre Valley F-15 _Raymer F-2 FEDERAL GOVERNMENT AGENCIES _Southeast Weld F-16 ✓ X US Army Corps of Engineers _Windsor/Severance F-17 USDA-APHIS Veterinary Service _Wiggins F-18 _Federal Aviation Administration _Western Hills F-20 _Federal Communication Commission OTHER SOIL CONSERVATION DISTRICTS Central Colo. Water Conservancy Dist. _Brighton _Panhandle Eastern Pipe Line Co. Fort Collins Tri-Area Planning Commission X Greeley Longmont West Adams COMMISSION/BOARD MEMBER X Tom Rulon 910 121. res DEPARTMENT OF PLANNING SERVICES 1 PHONE(303)353-3845, EXT. 3540 �. WELD COUNTY ADMINISTRATIVE OFFICES 1400 N. 17TH AVENUE GREELEY, COLORADO 80631 COLORADO Date: November 22, 1993 TO WHOM IT MAY CONCERN: Enclosed is an application from Waste Services Corporation for Closure/Post- Closure Plan for Central Weld Sanitary Landfill to be reviewed concurrently with Revised USR-1012. The parcel of land is described as part of the SE4 of Section 31 and part of the S2 of Section 32, in T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. The location of the parcel of land for which this application has been submitted is approximately 1.5 miles northeast of the Town of Milliken. This application is submitted to you for review and recommendation. Any comments or recommendation you consider relevant to this request would be appreciated. Your prompt reply will help to facilitate the processing of the application and will ensure prompt consideration of your recommendation. Please reply by December 6, 1993, so that we may give full consideration to your recommendation. Please call Gloria Dunn, Current Planner, if you have any questions about the application. Check the appropriate boxes below and return to our address listed above. 1. We have reviewed this request and find that it does/does not) comply with our Comprehensive Plan for the following reasons. 2. We do not have a Comprehensive Plan, but we feel this request (is/is not) compatible with the interests of our town for the following reasons: 3. We have reviewed the request and find no conflicts with our interests. 4. A formal recommendation is under consideration and will be submitted to you prior to: 5. Please refer to the enclosed letter. Signed: Agency: Date: 9 � e) s: e T e • • tt DEPARTMENT OF HEALTH EC I V L� 1517- 16 AVENUE COURT 80631 W I I 4 ADMINISTRATION (303)EELEY, COLORADO3-0586 O NOV 2 1993 HEALTH PROTECTION (303)353-0635 Weld emus pipp� COLORADO „�^'�!M COMMUNITY HEALTH (303)353-0639 November 18, 1993 Bill Hedberg Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 Dear Mr. Hedberg: The Environmental Protection Division of the Weld County Health Department has completed the review of the Closure/Post-Closure Plan (the Plan) , Central Weld Sanitary Landfill (CWSL) . The Division in its review has found the document to be incomplete in several areas, and requests the following be clarified and/or amended: 1) The liner shall meet a permeability of not greater than 1 X 10-6 cm/sec rather than the proposed 1 X 10-5 cm/sec. Given that the facility is unlined, the Division feels that this is necessary in order to minimize the infiltration of moisture and reduce the potential for leachate production. 2) A detailed QA/QC document for the final cap must be submitted. This document must be approved by the Weld County Health Department and the Colorado Department of Health prior to construction of the cap. 3) According to page 3-3, #4 of the Plan, "the wells will be monitored semi- annually for post-closure years 1-5 and annually thereafter." The Division requires that the monitoring wells are sampled quarterly for the first (2) years, semi-annually years 3-5, then annually thereafter. 4) The facility must submit details regarding how the facility is intending to demonstrate compliance with Section 2.5.7 of the Regulations Pertaining to Solid Waste Disposal Sites and Facilities (the Regulations) . 5) According to page 1-3, Section 1.2.6 of the plan "the current CWSL ground water monitoring program includes 15 monitoring wells." According to the Groundwater Monitoring Plan for Central Weld Landfill, October 1993, the facility will monitor 18 wells. Additionally, the facility has installed three (3) additional wells along the southern boundary of the buffer property, of which, the sampling frequency and parameters have yet to be 91.0 121 Bill Hedberg Waste Services Corporation November 23, 1993 Page 2 determined. Please, clarify the discrepancy regarding the actual number of wells and discuss the proposed monitoring frequency, etc. of the three (3) additional wells. 6) On page 3-2, #1 of the Plan, it indicates that the entire site will be inspected annually. Please provide the minimum qualifications of the inspector. 7) Please define a "post-closure" repair as discussed on page 3-4, #8, of the Plan. Specifically, what type of repairs require the removal and replacement of refuse? 8) Please discuss the frequency and constituents of post-closure surface water monitoring as discussed on page 3-4, #7, of the Plan. These conclude the Division's comments on the "Closure/Post-Closure Plan, Central Weld Sanitary Landfill", October 8, 1993. Please address the above in a comprehensive document at your earliest convenience. If you have any questions, please contact me at (303) 353-0635. Sincerely, . Trevor Jiricek, Supervisor Environmental Protection Services /tj-2385 cc: Roger Doak, Colorado Department of Health Alan Scheere, Waste Services Corporation Lee Morrison, Weld County Attorney's Office Chuck Cunliffe, Weld County Planning Department 3°0121, (iitip,;;;N'H mEmoRAnDum Whit�' Gloria Dunn to Planning pate December 2, 1993 COLORADO From Donald Carroll Subject: Waste Services Corporation USR-1012 (revised) I have reviewed the application and have the following comment about moving material from the buffer zone to the facility. Under the county roads and bridges to be utilized, in the excavation section, the soil excavation from this portion of the operation will be transported across WCR 27.5 by scrapers in the general area of the landfill entrance. The potential impact to WCR 27.5 will be mitigated by the following items: 1. Signs will be posted north and south of the cross-over warning traffic of the construction activity. 2. Traffic control person will be present at the cross-over when heavy equipment is crossing WCR 27.5. 3. Soils inadvertently deposited on the road as a result of crossing activity will be removed. 4. A Weld County Transport Permit for over-weight and over-width vehicles will be obtained as needed from the Weld County Engineering Department. Please notify the Weld County Engineering Department prior to start-up. cc: Commissioner Baxter File USR-1012 DEC IVE DEC 0 3 1493 LI Weld County Planning mgloria.pds 9 1,21 (0 A Avg DEPARTMENT OF PLANNING SERVICES PHONE(303)353.3945. EXT. 3540 WELD COUNTY ADMINISTRATIVE OFFICES !'^O' 1400 N. 17TH AVENUE f�* • GREELEY, COLORADO 80631 COLORADO Date: November 22 , 1993 RECEIVED Hoy 2 2 1993 TO WHOM IT MAY CONCERN: Enclosed is an application from Waste Services Corporation for Closure/Post- Closure Plan for Central Weld Sanitary Landfill to be reviewed concurrently with Revised USR-1012. The parcel of land is described as part of the SE4 of Section 31 and part of the S2 of Section 32, in T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. The location of the parcel of land for which this application has been submitted is approximately 1.5 miles northeast of the Town of Milliken. This application is submitted to you for review and recommendation. Any comments or recommendation you consider relevant to this request would be appreciated. Your prompt reply will help to facilitate the processing of the application and will ensure prompt consideration of your recommendation. Please reply by December 6, 1993, so that we may give full consideration to your recommendation. Please call Gloria Dunn, Current Planner, if you have any questions about the • application. Check the appropriate boxes below and return to our address listed above. 1. We have reviewed this request and find that it does/does not) comply with our Comprehensive Plan for the following reasons. 2. We do not have a Comprehensive Plan, but we feel this request (is/is not) compatible with the interests of our town for the following reasons: 3. We have reviewed the request and find no conflicts with our interests. 4. A formal recommendation is under consideration and will be submitted to you prior to: 5. di Please refer P _ to the enclosed letter. �j Signed: ( ( l Agency: C2' /y/( Ar Date: I 64mE L,EZ7ER .4-5 "5R /o/ 2- 940121 .tiNT of DEPARTMENT OF THE ARMY ca,s,ti„ 4 ��F CORPS OF ENGINEERS,OMAHA DISTRICT , ti, \M TRI-LAKES PROJECT OFFICE,9307 STATE HWY 121 - ;Cc' �' "� LITTLETON,COLORADO 80123-6901 �� r e` REPLY TO Ap r w" "'�N"°"Or November 30, 1993 e, .,E° as._ a pe,ew Gloria Dunn Department of Planning Services Weld County Administrative Offices 1400 North 17th Avenue Greeley, Colorado 80631 Dear Ms. Dunn: Reference is made to Waste Services Corporation application for Closure/Post-Closure Plan. The parcel of land located in Section 32, Township 5 North, Range 66 West, Weld County, Colorado. Prior to any work at this site, the property should be examined for wetlands pursuant to Section 404 of the Clean Water Act. Any wetlands should be delineated and mapped. This office should be contacted for proper Department of the Army permits prior to any work in an existing wetlands. Please find the attached list of Environmental Consultants who may assist in the wetland delineation and mapping. If there are any questions concerning this matter, please feel free to contact Mr. Terry McKee of this office at 303-979-4120 and reference action ID #199380769. Sincerely, Ti y . C Proj a Enclosure 0 r DEC 0 21993 11 LI wM County Planning 940t7,1. ENVIRONMENTAL Cr NSULTANTS - This list is not comr"'d to endorse any specific consultant PEGGY ANDERSON-GOGUEN JEFFEREY L. DAWSON 420 Sunset Street Project Scientist Longmont, CO 80501 Woodward-Clyde Consultants (303) 776-4636 Stanford Place 3, Suite 1000 4852 S. Ulster Street Parkway SAMUEL A. BAMBERG, PhD Denver, CO 80237 R A Consultants (303) 694-2770 26050 E. Jamison Cir. Telex 501285 (Woodward DVR) Aurora, CO 80016 (303) 690-7402 STEVEN DOUGHERTY TED BOSS ERO Resources Corporation 308 Milkyway 1740 High Street Fort Collins, CO 80525 Denver, CO 80218 (303) 223-5145 (303) 320-4400 FAX (303) 320-4491 DAVID L. BUCKNER PATRICK H. MURPHY SCOTT ELLIS & PHIL HACKNEY ESCO Associates ENSR P.O. Box 18775 1716 Health Parkway Boulder, CO 80308 Fort Collins, CO 80524 (303) 447-2999 (303) 493-8878 JANE BUNIN, PhD LOREN HETTINGER, PhD Natural Science Associates Dames & Moore 3010 Regis Avenue 1125 Seventeenth St., Suite 1200 Boulder, CO 80303 Denver, CO 80202-2027 (303) 499-5014 (303) 294-9100 KATHLEEN COHAN DAVID JOHNSON Resource Consultants & Engrs. Inc. Western Resource Development P.O. Box 270460 711 Walnut Street Fort Collins, CO 80527 Boulder, CO 80302 (303) 223-5556 (303) 449-9009 DAVID COOPER DEBORAH KEAMMERER Department of Environmental Sciences Stoecker-Keammerer & Associates Colorado School of Mines Ecological Consultants Golden, CO 80401 5858 Woodbourne Hollow Road (303) 499-6441 Boulder, CO 80301 (303) 530-1783 DONALD R. D'AMICO 5935 Baseline Road STEPHEN G. LONG Boulder, CO 80303 STEVE VIERT (303) 494-7959 Cedar Creek Associates, Inc. 916 Willshire Avenue Fort Collins, CO 80525 (303) 493-4394 Home: 493-1893 94.10t.21 JANICE MCKEE MIKE ST./'',TON Wetland Ecology & Assoc1ates Quaternary .-avironmental Consulting 5745 Arrowhead 1210 South Park Drive Greeley, CO 80634 Monument, CO 80132 (303) 850-0930 (719) 488-2769 DAVID MEHAN GARY TUTTLE Wright Water Engineers Tuttle Applegate, Inc. 2490 W. 26th Avenue 11990 Grant Street, Suite #410 Suite 100A Denver, CO 80233 Denver, CO 80211 (303)452-6611 (303) 480-1700 ERIK OLGEIRSON, PhD 4440 Tule Lake Drive Littleton, CO 80123 (303) 347-8212 LAURANNE RINK Aquatic & Wetland Consultants Aquatic & Wetland Construction Company Siena Square 2060 Broadway, Suite 255 Boulder, CO 80302 (303) 442-5770 FAX (303) 442-8133 MIKE SAVAGE 464 West Sumac Ct. Louisville, CO 80027 (303) 666-7372 RANDY SCHROEDER Greystone Development Consultants 5990 Greenwood Plaza Boulevard Suite 104 Englewood, CO 80111 (303) 850-0930 PETER SMITH Stoneman Landers, Inc. 11480 Cherokee Street, #L Denver, CO 80030 (303) 280-0048 BRUCE D. SNYDER Engineering-Science, Inc. 1700 Broadway, Suite 900 Denver, CO 80290 (303) 831-8100 9410 t2,1 STATE OF COLORADO OIL AND GAS CONSERVATION COMMISSION SUSAN McCANNON DEPARTMENT OF NATURAL RESOURCES Acting Director SUITE 380 LOGAN TOWER BUILDING PATRICIA BEAVER 1580 LOGAN STREET Technical Secretary DENVER, COLORADO 80203 (303) 894-2109 FAX ROY ROMER (303) 894-2100 Governor December 2, 1993 Gloria Dunn Weld County Planning Services 1400 North 17th Avenue Greeley CO 80631 Dear Ms. Dunn: Case USR-1012 along with the Closure/Post Closure Plan has been reviewed by this office. Our records indicate that there are no plugged and abandoned wells underlying the landfill site or the buffer area. Should a well casing be encountered by chance during excavation of the') landfill or buffer area, please contact our office. If you have any further questions please contact me at the above address or phone number. / 1 Sincerely yours, i s` f ti 4. . L c� �`-{-+'-A Le , Robert J. Van Sickle Li Petroleum Engineer C WC),WI DPI N61 110 -D cs DEC p 6 1993�r p q J 6w.1 weld malty Planning 9t 3121 fk. DEPARTMENT OF PLANNING SERVICES PHONE(303)353-3845, EXT. 3540 VI I P C. WELD COUNTY ADMINISTRATIVE OFFICES 1400 N. 17TH AVENUE GREELEY, COLORADO 80631 COLORADO NOTICE OF PUBLIC HEARING The Weld County Planning Commission will hold a public hearing on Tuesday, December 21, 1993, at 1:30 p.m. for the purpose of considering a Closure/Post-Closure Plan for the property described below. Approval of the request may create a vested property right pursuant to Colorado Law. APPLICANT: Waste Services Corporation LEGAL DESCRIPTION: Part of the SE4 of Section 31, and part of the S2 of Section 32, in T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. TYPE AND INTENSITY OF PROPOSED USE: Closure/Post-Closure Plan, Central Weld Sanitary Landfill. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken. SIZE: 100 acres, more or less The public hearing will be held in the Weld County Commissioners' Hearing Room, First Floor, Weld County Centennial Center, 915 Tenth Street, Greeley, Colorado. Comments or objections related to the above request should be submitted in writing to the Weld County Department of Planning Services, 1400 N. 17th Avenue, Greeley, Colorado 80631, before the above date or presented at the public hearing on December 21, 1993. Copies of the application are available for public inspection in the Department of Planning Services, 1400 N. 17th Avenue, Greeley, Colorado 80631 - Phone - 353-3845, Extension 3540. Judy Yamaguchi, Chairperson Weld County Planning Commission To be published in the Windsor Beacon To be published one (1) tim by ov ber 25, 1993. Received by:2 Date: 7 ' A f+N ?1, CERTIFICATE OF MAILING I hereby certify that I have placed a true and correct copy of the surrounding property owners and owners and lessees of minerals in accordance with the notification requirements of Weld County for Closure/Post-Closure Plan for the Central Weld Sanitary Landfill in the United States Mail, postage prepaid First Class Mail by letter as addressed on the attached list. this 29th day of December, 1993. 940121 ,(0 t, DEPARTMENT OF PLANNING SERVICES PHONE(303)353.3845, EXT. 3540 WELD COUNTY ADMINISTRATIVE OFFICES C. 1400 N. 17TH AVENUE GREELEY, COLORADO 80631631 COLORADO DATE: December 29, 1993 TO: SURROUNDING PROPERTY/MINERAL OWNERS There will be a Public Hearing before the Weld County Planning Commission on Tuesday, January 4, 1994, at 1:30 p.m. , in the County Commissioners' Hearing Room, First Floor, Weld County Centennial Center, 915 10th Street, Greeley, Colorado, concerning the request of: NAME: Waste Services Corporation FOR: Closure/Post Closure Plan for the Central Weld Sanitary Landfill. LEGAL DESCRIPTION: Part of the SE4 of Section 31, and part of the S2 of Section 32, in T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken. Your property is within five-hundred (500) feet of the property on which this request has been made or you may have an interest in the minerals located under the property under consideration. For additional information write or telephone Gloria Dunn, Current Planner. Comments or objections related to the above request should be submitted in writing to the Weld County Department of Planning Services, 1400 N. 17th Avenue, Greeley, Colorado 80631, on or before the date of public hearing. THE ITEM WAS ORIGINALLY SCHEDULED ON THE DECEMBER 21, 1993, PLANNING COMMISSION AGENDA AND WAS CONTINUED TO THE JANUARY 4, 1994, MEETING. SURROUNDING PROPERTY OWNERS AND/OR SUBSURFACE ESTATE/MINERAL OWNERS Waste Services Corporation Closure-Post Closure Plan Ella Marie Hayes and Susanne Stephens Box 773 Saratoga, WY 82331 Heirs of Ann Spomer, et al. c/o Louis Reikert 1st National Bank P.O. Box 1058 Greeley, CO 80631 Samuel S. and Myrtle Ann Telep 2315 54th Avenue Greeley, CO 80634 G.D. Mossberg and Janet Lea Sherrod-Mossberg 4603 83rd Avenue Greeley, CO 80237 Louis E. Spomer 4055 S. Oneida Street Denver, CO 80237 Vern Keith and Melodie Rae Kammerzell and Steve Dale and Douglas Lee Kammerzell 12314 Highway 60 Milliken, CO 80543 Nancy L. Kiel 211 Wolfe Avenue Colorado Springs, CO 80906 Arthur P. Garcia 13998 Weld County Road 378 Milliken, CO 80543 Weld County P.O. Box 758 Greeley, CO 80631 9 .01.c;1 SURROUNDING PROPERTY OWNERS AND/OR SUBSURFACE ESTATE/MINERAL OWNERS Waste Services Corporation Closure-Post Closure Plan Page 2 M. Suzanne Finni 1217 Ward Drive Greeley, CO 80634 Joseph W. Brough, Jr. 5225 S. Prince Street Apartment 609A Littleton, CO 80123 Dos Rios, Inc. 17 Dos Rios Greeley, CO 80631 Dorothy M.R. Swayne 900 Saturn Drive, #204 Colorado Springs, CO 80906 Joe Raith Morning Fresh Farms, Inc. 15121 Weld County Road 32 Platteville, CO 80651 Cache Energy Investments 1221 28th Avenue, Suite 1 Greeley, CO 80631 Rose Bejarano and Andrew Garcia Conservators of Rose Garcia Estate 2057 South Gray Drive Lakewood, CO 80227 Kenneth F. King 900 Pennsylvania Street Denver, CO 80203 Susie Ohlsen 1924 30th Street Road Greeley, CO 80631 Elizabeth Louise Spomer 1015 South Gilpin Denver, CO 80209 911012A SURROUNDING PROPERTY OWNERS AND/OR SUBSURFACE ESTATE/MINERAL OWNERS Waste Services Corporation Closure-Post Closure Plan Page 3 Alarado Corporation 215 Union Blvd. , Suite 450 Lakewood, CO 80228 Christopher Bovich 1125 17th Street, Suite 2400 Denver, CO 80202 Edward Cerullo c/o Kidder, Peabody and Co. 10 Hanover Square New York, NY 10005 Max C. Chapman, Jr. Normura Securities Int. , Inc. 2 World Financial Center New York, NY 10281-1198 Stephen B. Evans and Company 215 Union Blvd. , Suite 450 Lakewood, CO 80228 Robert 0. Feeney 416 Albenarle Road Cedarhurst, NY 11516 Johnie Ourts 18 Belleview Lane Littleton, CO 80121 Barry L. Snyder 777 South Wadsworth Blvd. Building 4, Suite 215 Lakewood, CO 80226 Gertrude Weber Malvern Farm Route 3, Box 162 Charlottesville, VA 22903 Colorado Energy Minerals, Inc. P.O. Box 394 Evergreen, CO 80439 91101.21 SURROUNDING PROPERTY OWNERS AND/OR SUBSURFACE ESTATE/MINERAL OWNERS Waste Services Corporation Closure-Post Closure Plan Page 4 Snyder Oil Corporation 1625 Broadway, Suite 2200 Denver, CO 80202 Damson Investment Group, Inc. 366 Madison Avenue New York, NY 10017 Union Pacific Resources Company P.O. Box 7 Fort Worth, TX 76101 Amoco Production Company P.O. Box 800 Denver, CO 80201 Basin Exploration 370 17th Street, Suite 1800 Denver, CO 80202 Harold and Madeline Daniels 23732 Weld County Road 27.5 Milliken, CO 80543 Gregory J. Hobbs, Jr. Hobbs, Trout and Raley, P.C. Attorney's at Law 1775 Sherman Street, Suite 1300 Denver, CO 80203 Senator Hank Brown 1100 Tenth Street, Room 201 Greeley, CO 80631 Senator Tom Norton Senate Chambers State Capitol Building Denver, CO 80203 Craig A. Smith D.C. Smith Chiropractic Offices, P.C. 801 Eleventh Avenue Greeley, CO 80631 910 SURROUNDING PROPERTY OWNERS AND/OR SUBSURFACE ESTATE/MINERAL OWNERS Waste Services Corporation Closure-Post Closure Plan Page 5 Don Hoff Attorney at law 1025 9th Avenue, Suite #309 Greeley, CI 80631 Walker Miller Attorney at Law 822 7th Street Greeley, CO 80631 Arthur P. Roy 1011 11th Avenue Greeley, CO 80631 Michael S. Hayes 8200 W. 49th Street Greeley, CO 80634 Ms. Jane Carlson 1109 13th Street Greeley, CO 80631 Representative Wayne Allard Bank One Plaza, Suite 350 Greeley, CO 80631 94 c' '1 EXHIBIT "A" Existing Central Weld Sanitary Landfill Property The W1/2 SW1/4 and the SE1/4 SW1/4 of Section 32 , Township 5 North, Range 66 West of the 6th P.M. , EXCEPTING THEREFROM that portion conveyed to Louis Spomer and John Spomer by Deed recorded March 11 , 1930 in Book 891 at Page 143 . 21,9191 of - EXHIBIT "B" Page 1 of 4 TRANSAMERICA TITLE INSURANCE COMPANY Commitment No. : 8031839C-3 SCHEDULE A - Continued LEGAL DESCRIPTION PARCEL 1: A tract of land located in the SE1/4 of Section 31, and the SW1/4 of Section 32, Township 5 North, Range 66 West of the 6th P.M. ,and the NW1/4 of Section 5, Township 4 North, Range 66 West ofthe 6th P.M. , County of Weld, State of Colorado, more particularly described as follows: Beginning at the Northeast corner of said SE1/4 of Section 31; thence South 00 degrees 08 minutes 22 seconds West along the East line of said SE1/4 a distance of 1656. 52 feet to a point on the Southwesterly line of that parcel of land described in Book 1094 as Reception No. 02034592 in the records of said said Weld County; also being the Northeasterly line of a parcel of land described in Book 1220, as Reception No. 02167034, in the Records of said Weld County; thence along said Southwesterly line, the following 6 courses: 1) South 43 degrees 26 minutes 21 seconds East, a distance of 591. 14 feet; 2) North 13 degrees 36 minutes 44 seconds East, a distance of 97 . 00 feet; 3) North 11 degrees 48 minutes 30 seconds West, a distance of 140. 00 feet; 4) North 68 degrees 31 minutes 42 seconds East, a distance of 81. 00 feet; 5) South 24 degrees 28 minutes 23 seconds East, a distance of 497 . 00 feet; 6) South 22 degrees 48 minutes 23 seconds East, a distance of 338 . 13 feet to the South line of said SW1/4 of Section 32; thence North 88 degrees 51 minutes 03 seconds East along said South line a distance of 1785 . 10 feet to a point on the West right of way line of the Public Highway described in Book 300 at page 473 in the records of said Weld County; thence South 3 degrees 37 minutes 42 seconds East along said West right of way line a distance of 703 . 60 feet from which a #5 rebar with aluminum cap L. S. #18472 bears South 61 degrees 27 minutes 29 seconds West a distance of 174 .52 feet thence along the following 23 courses, each course being marked by a #5 rebar with aluminum cap L.S. #18472 ; 1) thence South 61 degrees 27 minutes 29 seconds West, a distance of 174 . 52 feet; 2) thence South 61 degrees 27 minutes 47 seconds West, a distance of 229. 14 feet; 3) thence South 62 degrees 53 minutes 41 seconds West, a distance of 489. 54 feet; Page 2 9'_u121 Page 2 of 4 EXHIBIT "B„ TRANSAMERICA TITLE INSURANCE COMPANY Commitment No. : 8031839C-3 SCHEDULE A - Continued LEGAL DESCRIPTION 4) thence South 65 degrees 14 minutes 53 seconds West, a distance of 256.26 feet; 5) thence South 65 degrees 52 minutes 30 seconds West, a distance of 274 . 65 feet; 6) thence North 28 degrees 59 minutes 15 seconds West, a distance of 105.24 feet; 7) thence North 29 degrees 36 minutes 06 seconds West, a distance of 149. 14 feet; 8) thence North 29 degrees 15 minutes 55 seconds West, a distance of 153 . 92 feet; 9) thence North 45 degrees 27 minutes 23 seconds West, a distance of 460. 71 feet; 10) thence North 45 degrees 37 minutes 41 seconds West, a distance of 205. 17 feet; 11) thence North 39 degrees 55 minutes 26 seconds West, a distance of 77 . 05 feet; 12) thence North 14 degrees 37 minutes 49 seconds West, a distance of 80. 05 feet; 13) thence North 14 degrees 31 minutes 02 seconds West, a distance of 144 . 47 feet; 14) thence North 15 degrees 06 minutes 27 seconds West, a distance of 129.41 feet; 15) thence North 44 degrees 03 minutes 15 seconds West, a distance of 289. 35 feet; 16) thence North 41 degrees 39 minutes 13 seconds West, a distance of 234 . 03 feet; 17) thence North 30 degrees 51 minutes 45 seconds West, a distance of 261. 99 feet; 18) thence North 30 degrees 40 minutes 39 seconds West, a distance of 183 . 26 feet; 19) thence North 20 degrees 52 minutes 42 seconds West, a distance of 232 . 87 feet; 20) thence North 20 degrees 59 minutes 00 seconds West, a distance of 254 . 24 feet; 21) thence North 34 degrees 55 minutes 06 seconds East, a distance of 334 . 68 feet; 22) thence North 17 degrees 20 minutes 35 seconds West, a distance of 655. 61 feet; 23) thence North 15 degrees 54 minutes 55 seconds West, a distance of 560. 65 feet, more or less, to a point on the North line of said SE1/4 of Section 31; thence Easterly along said North line a distance of 366.44 feet to the Point of Beginning. Page 3 EXHIBIT "B" Page 3 of 4 TRANSAMERICA TITLE INSURANCE COMPANY Commitment No. : 8031839C-3 SCHEDULE A - Continued LEGAL DESCRIPTION PARCEL 2 : A tract of land situated in the SW1/4 of Section 32, Township 5 North, Range 66 West of the 6th P.M. , and the NW1/4 of Section 5, Township 4 North, Range 66 West of the 6th P.M. , County of Weld, State of Colorado, more particularly described as follows: Beginning at the Southwest corner of said SW1/4 of Section 32 ; thence North 00 degrees 08 minutes 22 seconds East along the West line of said SW1/4 of Section 32, a distance of 653 .27 feet; thence South 30 degrees 40 minutes 39 seconds East, a distance of 124 . 48 feet; thence South 30 degrees 51 minutes 45 seconds East, a distance of 261 . 99 feet; thence South 41 degrees 39 minutes 13 seconds East, a distance of 234 . 03 feet; thence South 44 degrees 03 minutes 15 seconds East, a distance of 289 . 35 feet; thence South 15 degrees 06 minutes 27 seconds East, a distance of 129 . 41 feet; thence South 14 degrees 31 minutes 02 seconds East, a distance of 144 . 47 feet; thence South 14 degrees 37 minutes 49 seconds East, a distance of 80. 05 feet; thence South 39 degrees 55 minutes 26 seconds East, a distance of 77 . 05 feet; thence South 45 degrees 37 minutes 41 seconds East, a distance of 205. 17 feet; thence South 45 degrees 27 minutes 23 seconds East, a distance of 460. 71 feet; thence South 29 degrees 15 minutes 55 seconds East, a distance of 153 . 92 feet; thence South 29 degrees 36 minutes 06 seconds East, a distance of 149 . 14 feet; thence south 28 degrees 59 minutes 15 seconds East, a distance of 105. 24 feet; thence South 57 degrees 51 minutes 07 seconds West, a distance of 347 . 83 feet; thence south 62 degrees 58 minutes 55 seconds West, a distance of 658 . 42 feet; thence South 72 degrees 57 minutes 34 seconds West, a distance of 243 . 35 feet to a point on the West line of said NW1/4 of Section 5; thence Northerly along said West line a distance of 1845. 94 feet, more or less, to a point on the South line of said SW1/4 of Section 32 ; thence South 88 degrees 51 minutes 03 seconds West along said South line a distance of 245. 07 feet to the Point of Beginning. Page 4 . if'` I 1 . a . . . - O 3 6Q' 7k « • \ 2 \ 7 : % 4a / § % 7 $l C) �» . \ < . • 1 940121 • COMPUTERS FOR DESIGN • Mr. Dave Henry September 29, 1993 Waste Management- Mountain Region 5660 Greenwood Plaza, Suite 424 Englewood, Colorado 80111 Dear Dave, I have reviewed the work done by Braverman Multi Media for you concerning the Central Weld Landfill and do certify that the view generated by them represents the terrain as seen from the predetermined point where the photograph was taken with the following limitations/exceptions: • That all electronic material provided by Waste Management represents the current condition of the subject property. This includes surveyed data provided by Aero-Metric and control point data provided by Stewart& Associates. • That the photographs were taken with a 210 mm lens setting at approximately horizontal angle. • That the location of the station point(camera point)and the target point (person standing in photograph)are as indicated on the sheet presented to me by Waste Management. This includes camera height and focal point. I further represent that the design terrain model as seen in the view correctly depicts the surface of the design landfill as presented in the following computer files: • CW493BR.LST dated 5/25/93 • CW493MP.LST dated 5/25/93 • CWFINALDGN dated 9/27/93 Sincerely, Eric H. Darst P.E. Cob. Reg.# 094 %I re 0 President °�,s m • Izsz e �.< mmemeamp ,�/1/%,lll�lllei `"` WYCERTA0C DENVER•ALBUQUERQUE•CHEYENNE • 5480 SOUTH OUEBEC ST SUITE 110 ENGLEWOOD COLORADO 80111 • 7Ot r?.� PHONE•303-771-7719 FAX•303.771-7801 9LM L/ r.'_._. A -4t ir A)AMLr\( // ENGINEERING , INC . PHOTOGRAMMETRIC ENGINEERS 4708 SOUTH COLLEGE AVE., FORT COLLINS,COLORADO 80525 (303)226-2883 September 24, 1993 Mr. Dave Henry WMNA - Mountain Region 5660 Greenwood Plaza Suite 424 Englewood, CO 80111 Dear Dave: It is customary for Aero-Metric Engineering to warrant that the photogrammetric data and maps produced will meet National Map Accuracy Standards. This is: 90% of well defined horizontal features shall be within 1/40" at publication scale of true position; and 90% of contours shall be within 1/2 interval vertically of true elevation after allowing for horizontal placement limits. In the case of the standard 100-scale, 2 ' contour maps which we prepare for you this amounts to +/-2 .5 ft. horizontal placement, +/-1 ft. vertical placement. These conditions apply only to the data and graphics as produced and delivered. Aero-Metric can not warrant photogrammetric data and/or topographic maps which have been processed, copied, transformed or manipulated in any way outside of our direct control and involvement. Sincerely, AERO-METRIC ENGINEERING, INC. .--Z. c_cle_e_s_se Larra42..../. / / dwards, P.E. Vice President, Western Division LJE/ms 940121 • EX,I-halt 0-2 Ii I i• w � _ II / 1 I yelltm\ H , oes........ °aril EF1/44tein-d ' i \ L'owl of EnYebP�-:nn \ �' ) J) \\ =.n. 1, ) 111 ) : ' \ .\ .1 I ;13Ut < . ..\\ ‘) 11 ) )1 iYi ilits. *`;'`...1: - ) illi \\t C., ''SN ,4' ) \ ( I 1 / 42p.s „\\ • I ii Iii II c,rniwit. west.. r IC:. C.e.r•I ITer,Y LAI-IGFILL- LccerInH 4 Like-cT1rN .'.p t t-NVC-Lore= VIE-2,..Y. NY^ I tonacapo ArMMrrct Grand Reid DWoru . I0A CIa s. co .W] !a, Ce3Nnor C :am 2n 2983 ill 70.0 61'^: z 2 § ti § o kg E n 4Ag Q) % « E c cs _ ■ . -) E 2 § � 2 / k Se 3 2 a) m ■ c .- cs c • -O 13 2 ® a•• 0 § § j @ • : § & •• a) -E ■ _ ca 02 %\ e � • • •• / CZ 2 R 2 c 2 • - k •• it • E a• G o 7 0 © •© R = z © ,- Q c • 2 © � 2 o • ' co a_ E U) a) S O < 2 k 2 cu � o � E • N % • . m 3 E G 0 2 o / 2 = ® • 2 k « • 2 k � as • o (n c c a k = 2 U - . # ■ 2 R ■ u U) o ) 0c2 : • z • Ca O t a - ui o - as k c2 n 2 -ct . © « tx.D in 6 • • E 2 cn § • . •• 2 2 — - 2 � > n < a) Cn 2 & \ a) c - a 2 ® § 0 • 2 ■ m q � , � 2 - O § 2 o • 2 ■ \ • � ta � > 2 ,_ § z a 0 i « 2 / ] o , ` 27 / c • 2 Li Oc f2 •0� la C f .k % / § .• § c .f$ 0 e cL IE -O R LU 2 d ` 8 1 8 � :._ « ._ _ >c 0, _ E • 2 §_ 2 = a § E • k k /� k f� k f k �fcE i /ai� E � � � � � % § ; ° �k ; ° K § & e o e 7v § 3 2 E 2 c a m a g n c a s E | ® 2 c t" W U W p / } 3J � GC .C 0 § • : e, \ §§ co / f k 946121 EXHIBIT F Central Weld Sanitary Landfill Special Waste Acceptance Summary Special Wastes received for disposal at the Central Weld Sanitary Landfill (CWSL) will be received and managed in accordance with the previously submitted Access Control Plan for Special Waste Identification, dated March 1993 . The plan requires CWSL implement and document the results of a special waste identification program that identifies special wastes produced by it's commercial and industrial customers. Identification may be made by reviewing commercial and industrial processes, written survey, phone questionnaires or other methods which will accurately identify regulated wastes. Once the special waste customer is identified, the customer will provide information about the waste and sign the "Generator's Waste Profile Sheet" (GWPS) . The GWPS and associated information (analytical data, Material Data Sheets (MSDS) , etc. ) will be reviewed by a technical manager and site manager to ensure the generator has adequately characterized the waste for detecting and preventing the disposal of regulated hazardous waste, regulated quantities of Polychlorinated Biphenyl (PCB) wastes, or radioactive waste at CWSL. The information must be adequate to assign conditions/limitations on properly managing the waste and ensuring the facility is permitted to accept the waste. CWSL will notify the customer in writing of all conditions/limitations that apply to managing the waste and the customer will be required to comply with all conditions/limitations. Following the effective date of a County Resolution adopted in conformance with the Agreement to which this Exhibit is attached, CWSL will limit the receipt and handling of special waste to the following specified waste streams and methods, which have been reviewed with the Weld County Department of Health. Customers needing to dispose of the following materials will be required to follow the above procedure for submittal of the GWPS. A copy of the GWPS and corresponding technical data will be forwarded to the Weld County Department of Health (WCDH) for review and concurrence. WCDH will submit to CWSL a letter of concurrence for each special waste received at CWSL. Description of Waste and Management Method and Procedures A) Contaminated Soils: 1) Soils contaminated with oil, or any other petroleum product, other than gasoline or diesel fuel is not accepted at CWSL. Contaminated soils accepted at the facility will meet 94012/1. EXHIBIT F Page 2 the following standards: A) Total Petroleum Hydrocarbons (TPH) of less than 300 ppm. B) Pass a T.C.L.P. test for lead C) Pass an EPA paint filter test (EPA method 9095) D) Written concurrence from WCDH Material will be stockpiled until spread over a large area of the working face as daily cover. 2) Soils contaminated with non-hazardous materials other than petroleum products will be evaluated on a case by case basis with concurrence from the WCDH. Contaminated soils accepted at CWSL will meet the following standards: A) Pass an EPA paint filter test B) Pass additional T.C.L.P. testing as appropriate to adequately characterize the waste as non-hazardous. C) Written concurrence from WCDH Material will be stockpiled until spread over a large area of the working face as daily cover. B) Off-specification, outdated commercial products: 1) Canned and or pre-packaged foods in original containers including but not limited to canned vegetables, fruits, soups, milk, beverages etc. 2) Waste produced by the processing of fruit, animals, vegetables or grains. Animals received from these processes will not be from research facilities or contain pathogens (diseased) . Off-specification, outdated commercial products will be managed as follows: A) Immediate burial may be needed to meet customer or operational need B) Written concurrence from WCDH C) Drained/Crushed bulk waste oil filters from commercial sources S46 ,1 EXHIBIT F Page 3 (including but not limited to Grease Monkeys' , Jiffy Lubes, etc. ) Filters will be managed by landfill as follows: A) Filters must be either drained and/or crushed prior to being received for disposal B) Written concurrence from WCDH In addition, special wastes acceptable for disposal will include any non-hazardous solid waste received in quantities which are incidental to the load or exempt from regulation. 94O ACCESS CONTROL PLAN FOR SPECIAL WASTE IDENTIFICATION at Waste Services Corporation Central Weld Sanitary Landfill March 1993 Copyright ® 1993 Waste Management of Colorado, Inc. All Rights Reserved \ J 910121. TABLE OF CONTENTS PAGE 1.0 PURPOSE 1 2.0 DEFINITIONS 1-3 3.0 SPECIAL WASTE IDENTIFICATION 4 3.1.a Special Waste Identification Program 4 3.1.b Prohibited Wastes 4 3.2 SPECIAL WASTE MANAGEMENT DECISION PROCESS 4 3.3 SPECIAL WASTE DECISION RENEWAL PROCESS 4 3.4 SPECIAL WASTE DOCUMENTATION 5 3.4.a Changes or Additions to Paperwork 5 4.0 LABORATORY USAGE 5 4.1.a Acceptable Laboratories 5 4.1.b Analytical Requirements 5 5.0 TRAINING 5 6.0 OPERATION PRACTICES 6 7.0 SPECIAL WASTE PROGRAM RECORDS 6 ATTACHMENTS Attachment A - Generator's Waste Profile Sheet 94C1.17.1. 1.0 PURPOSE Waste Services Corporation (WSC) recognizes that Federal, State, and local regulations need to be supplemented by an internal control program which ensures that all waste streams from industry and commerce receive attention commensurate with the risk associated with managing the waste. This access control plan as required by Special Review Permit Condition 3 (d) for waste identification and screening program has been developed to identify commercial and industrial wastes that require special handling from a regulatory or employee-safety perspective, and serves as a hazardous waste and PCB screening mechanism that prevents these waste streams from entering the Central Weld Sanitary Landfill. Compliance with the Waste Screening Program will also ensure compliance with the waste screening requirements of the Federal Subtitle D regulations (40 CFR Part 258.20(a)(1)-(3)). 2.0 DEFINITIONS Director of an Approved State - In accordance with 40 CFR 258.2, "the chief administrative officer of a State agency responsible for implementing the State municipal solid waste permit program or other system of prior approval that is deemed to be adequate by EPA under regulations published pursuant to sections 2002 and 4005 of RCRA." Empty Container - A container that meets the following description: All wastes have been removed that can be removed using the practices commonly employed to remove materials from the type of container (e.g., pouring, pumping, or aspirating), and An end has been removed (for containers larger than 25 gallons), and No more than 1 inch of residue remains on the bottom of the container or inner liner, or No more than 3 percent by weight of the total capacity of the container remains in the container or inner liner (for 110-gallon containers or smaller), or No more than 0.3 percent by weight of the total capacity of the container remains in the container or inner liner (for containers larger than 110 gallons). Containers which once held acutely hazardous wastes (as defined by Federal, or State regulations) must be triple rinsed with an appropriate solvent or cleaned by an equivalent method to be considered empty. Alternatively, the container's liner may be removed and managed as a hazardous waste by, while the outer shell is managed as a special waste. Containers which once held pesticides regulated under the Federal Insecticide, Fungicide and Rodenticide Act must be emptied according to label instructions. Cylinders of compressed gas are empty when the pressure in the container is substantially equivalent to atmospheric pressure. Friable Asbestos - In accordance with 40 CFR 61.141, "friable asbestos material means any material containing more than 1 percent asbestos as determined using the method specified in appendix A, subpart F, 40 CFR 763 section 1, Polarized Light Microscopy, that, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure. If the asbestos content is less than 10 percent as determined by a method other than point counting by polarized light microscopy (PLM), verify asbestos content by point counting using PLM." RMR 3/97 Page 1 of 6 917 0121 Hazardous Waste - A waste determined to be a "hazardous waste" by Federal, State (including the State of waste origin or the State in which the proposed management facility is located). This definition also includes any waste whose management requires approval or a license from an agency of the federal government (e.g., PCB waste, radioactive waste). Hazardous Waste Facility - A facility which has received all required Federal, or State approvals, licenses, or permits necessary to receive and manage hazardous waste. Industrial Process Waste - Special waste generated by manufacturing or industrial processes (e.g., waste from the production of paper, glass, electricity, etc.). This definition does not include wastes such as empty boxes from a shoe store, food scraps from a restaurant, etc. Incidental to the Load- Quantities of special waste (excluding friable asbestos) which may be managed without special handling because the quantity does not materially change the physical chemical characteristics of the load and the material is not regulated as a hazardous waste, radioactive waste or regulated PCB waste. Liquid Waste -Any waste that is determined to contain "free liquids" as determined by Method 9095 (Paint Filter Liquids Test), described in "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods" USEPA Publication SW-846. According to 40 CFR 258.28, this definition does not include waste in containers similar in size to that normally found in household waste, or waste in containers designed to hold liquids for use other than storage. Management - Transportation, transfer, storage, treatment, reclamation, incineration or disposal of waste. Special Waste - Any waste which may require special handling or management due to regulatory requirements and/or employee safety. These may include any discarded material from a non-residential source, which is non-hazardous and meeting any of the following descriptions. a. Waste from an industrial process (including process sludges). b. Waste from a pollution control process (e.g., baghouse dust, treatment plant sludge, filter cake, sedimentation pond cleanout, etc.). c. Waste containing free liquids (see definition of "liquid waste") d. Residue and debris from the cleanup of a spill of a chemical substance or commercial product or a waste listed in (a) through (c), or (e) through (g). This definition applies to spills of any size. e. Contaminated residuals from the cleanup of a facility generating, storing, treating, recycling, or disposing chemical substances, commercial products, or wastes listed in (a) through (d), (f), or (g). f. Any waste which is non-hazardous as a result of treatment pursuant to RCRA Subtitle C. O. Chemical-containing equipment removed from service, in which the chemical composition and concentration are unknown. HMR 3/B2 Page 2 of 6 V17,.C Y� T1 h. Friable asbestos from building demolition or cleaning; wall board, wall or ceiling spray coverings, pipe insulation,etc. Non-friable asbestos(e.g., asbestos-containing floor tiles, brake pads, roofing products, etc.) is not a special waste unless it has been processed, handled, or used in such a way that when dry, it becomes crumbled, pulverized, or reduced to powder. Commercial products or chemicals which are off-specification, outdated, unused, or banned. This category includes containers which once held commercial products or chemicals unless the container is "empty" as defined in this section. Outdated or off-specification uncontaminated food or beverage products in original consumer containers are not special waste unless management of such products is restricted by applicable regulations. j. Untreated medical waste -Any waste capable of inducing infection due to contamination with infectious agents from a blo-medical source including but not limited to a hospital, medical clinic, nursing home, medical practitioner, mortuary, taxidermist, veterinarian, veterinary hospital, animal testing laboratory, or medical testing laboratory. Any sharps from these sources must be rendered harmless or placed in needle puncture proof containers. k. Treated medical wastes - Any wastes from a bio-medical source including but not limited to a hospital, medical clinic, nursing home, medical practitioner, mortuary, taxidermist, veterinarian, veterinary hospital, animal testing laboratory, or medical testing laboratory which has been autoclaved or otherwise heat treated or sterilized so that it is no longer capable of inducing infection. Any sharps from these sources must be rendered harmless or placed in needle puncture-proof containers. Residue/sludges from septic tanks, food service grease traps, or washwaters and wastewaters from commercial laundries, laundromats, and car washes. m. Chemical-containing equipment removed from service, in which the chemical composition and concentration are known (e.g., oil filters, cathode ray tubes, lab equipment, acetylene tanks, fluorescent light tubes, etc.). n. Waste produced from the demolition or dismantling of industrial process equipment or facilities contaminated with chemicals from the industrial process. o. Incinerator ash generated at a Resource Recovery Facility that burned only non-hazardous household, commercial, or industrial waste and qualifies for the hazardous waste exclusion in 40 CFR 261.4(b). SW-846 Methods - The third edition of "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods" USEPA Publication SW-846. Ultimate Management Facility - A facility at which a waste is either disposed or managed in another manner such that additional management of the original waste is not required. WSC - Waste Services Corporation, an affiliate of Waste Management of Colorado, Inc. WMNA - Waste Management of North America, Inc. or any division or subsidiary thereof. AMR 3/92 Page 3 of 6 947 ��-+,.. It SPECIAL WASTE IDENTIFICATION 3.1.a Special Waste Identification Program WSC will implement and document the results of a special waste identification program that identifies special waste produced by Central Weld Sanitary Landfill and its commercial and industrial customers. Identification may be made by physically reviewing commercial and industrial processes, written survey, phone questionnaires or other methods which will accurately identify regulated wastes, such as hazardous waste, PCB wastes, radioactive wastes or special wastes. Hazardous wastes that are identified during the special waste identification program will be referred to a permitted hazardous waste transfer, storage, disposal (TSDF). 3.1.b Prohibited Wastes Hazardous waste, radioactive wastes, or Polychlorinated Biphenyl (PCB) wastes, which are subject to U.S. or State regulations are prohibited at the Central Weld Sanitary Landfill. These wastes will be managed by a permitted TSDF. 3.2 SPECIAL WASTE MANAGEMENT DECISION PROCESS An acceptance decision to approve or disapprove special waste management will be clearly documented for each special waste stream WSC is requested to manage. At a minimum, the following requirements must be met prior to WSC facilities managing special waste: • The customer must provide information about the waste and sign the "Generator's Waste Profile Sheet". (Attachment A) • WSC will review the GWPS and associated information, ensuring the generator that information adequately characterizes the waste not to be a regulated hazardous waste, contain regulated quantities of PCBs or is a radioactive waste. The information must be adequate to assign conditions/limitations on managing the waste, ensuring that the facility is permitted to accept the waste. • An expiration date for the Special Waste Management Decision will be assigned and will not exceed three years from the date that the waste stream was approved for management and must be renewed if the process generating the waste changes. • WSC will notify the customer in writinq of all conditions/limitations that apply to managing the waste, and the customer will be required to comply with all conditions/limitations. 3.3 Special Waste Decision Renewal Process Prior to the expiration date of a Special Waste Management Decision, the underlying facts concerning the waste stream will be re-examined and a decision rendered in accordance with section 3.2 whether to continue managing the wastes and whether expanded service is required. RMR 3/02 Page 4 of 6 •! ?c1 3.4 SPECIAL WASTE DOCUMENTATION The "Generator's Waste Profile Sheet"(GWPS) must be completed and signed by the customer for all special waste streams managed by WSC. The generator must complete the form to the best of his/her knowledge but may leave certain portions incomplete if other generator supplied information adequately characterizes the waste. 3.4.a Changes or Additions to Paperwork Any changes made to the written information provided by the customer will be initialed and dated by the WSC personnel making the changes, and the reason for the changes will be noted. When practical, the customer should acknowledge these changes by initialling and dating in proximity to the changes. If these changes affect the precautions, conditions, or limitations of the Special Waste Management Decision, the customer will be informed in writing of the changes. 4_0 LABORATORY USAGE 4.1.a Acceptable Laboratories The following laboratories, listed in order of preference, will be used for conducting analyses of special waste: • A WSC affiliated laboratory. • A commercial or private laboratory, using SW-846 or equivalent approved test methods acceptable to WSC. 4.1.b Analytical Requirements As part of the Special Waste Management Decision process, WSC personnel will evaluate as applicable, corrosivity, ignitability, reactivity, toxicity (TCLP), to determine if a special waste is a hazardous waste. Although generators may not be obligated by law to provide these analytical results, WSC personnel will obtain proper analytical results or equivalent information (i.e., 40 CFR 262.11 allows generator's knowledge of the waste and process generating the waste) to ensure that WSC is not managing hazardous waste or other prohibited wastes. Analyses must have been conducted within 12 months prior to the date on the "Generator's Waste Profile Sheet" and within the SW-846 holding times for the parameters to be analyzed, but not to exceed 90 days from the sampling date. 5.0 TRAINING WSC employees will be trained in the identification of special waste. Spotters and equipment operators will be present at the active face at all times that waste is unloaded, to check for peculiarities (e.g., hot loads, sludges with high liquid content, etc.) in the waste stream. Waste shipment records, manifests or other recognized mechanisms will be implemented to ensure that incoming special waste has been properly identified, that hazardous wastes are not accepted at the facility, and that other unacceptable wastes are managed properly. All associated documentation will be maintained at the facility. RMR 3/92 Page 5 of 6 All employees responsible for waste acceptance or inspection will be trained, at a minimum, to recognize and properly respond to hazardous waste, PCB waste, and other unacceptable wastes. 6_0 OPERATIONAL REQUIREMENTS If unacceptable wastes are identified, the material will be segregated until adequate documentation is obtained to determine the appropriate management method. Appropriate agencies will be notified as required. Additionally all efforts will be taken to identify the generator of the material. If the quantities of unacceptable wastes are incidental to the load and are non-hazardous, non-radioactive and non-PCB contaminated waste may be accepted without completion of a GWPS. 7.0 SPECIAL WASTE PROGRAM RECORDS Records will be maintained in accordance with applicable regulations. All documents will be maintained at the facility and will not be destroyed without concurrence of the WSC legal counsel. RMR 3/82 Page 6 of 6 7 I r" ATTACHMENT A GENERATOR'S WASTE PROFILE SHEET 941C 1 ? GENERATOR'S WASTE PROFILE SHEET PLEASE PRINT IN INK OR TYPE • Waste Profile Sheet Code WMNA14b17 This form is to be used to comply with the requirements of a waste agreement. INSTRUCTIONS FOR COMPLETING THIS FORM ARE ATTACHED (Shaded An..For Contractor Use Orly) Decision Expiration Date: / / Contractor Sales Rept: Service Agr. Renewal Date: / / A. WASTE GENERATOR INFORMATION 1. Generator Name: 2. SIC Code: 3. Facility Address(site of waste generation): 4. Generator City, State/Province: 5. Zip/Postal Code: 6. Generator USEPA/Federal ID#: • 7. State/Province ID #: 8. Technical Contact: 9. Phone: ( )B. WASTE STREAM INFORMATION (See Instructions) 1. Name of Waste: 2. Process Generating Waste: 3. Annual Amount/Units. 4. Type A❑ Type B ❑ 5. Special Handling Instructions/Supplemental Information: 6. Incidental Waste Types and Amounts: • C. TRANSPORTATION INFORMATION 1. Method of Shipment: 0 Bulk Liquid 0 Bulk Sludge 0 Bulk Solid ❑ Drum/Box ❑ Other 2. Supplemental Shipping Information: 3. Is this a DOT hazardous material? 0 No 0 Yes(If yes,complete 4, 5& 6) 4. Hazard Class/ID #: 5. Reportable Quantity/Units(lb/kg): 6. Shipping Name: D.TECHNICAL MANAGER DECISION (Check One) 0 APPROVED 0 DISAPPROVED 0 Check if additional information is attached If Disapproved, Explain: If Approved, Continue. 1. Management Method(s) 2. Precautions, Conditions, or Limitations on Approval: • 3. For Type A Wastes, Laboratory Analysis of a Representative Sample Was: 0 Waived 0 Attached If waived, explain why: 4. List Non-WMI Facility that is Approved to Manage this Waste: Date: Tech. Mgr. Signature: Name(Print): Date: E. MANAGEMENT FACILITY INFORMATION/DECISION 1. Proposed Management Facility: 2. Proposed Intermediate Transfer Facility: 3.Transporter: 4. Management Facility Gen.Mgr. Decision (Check One) 0 APPROVED 0 DISAPPROVED If Disapproved, Explain: If Approved, List Precautions, Conditions,or Limitations on Approval: General Mgr. Signature: Name (Print): Date: Turn Page and Complete Side 2(If Type B Special Waste, only complete Part J of Side 2) _ _ �. Side of �. WNINA-4151 102/92, RA GENERATOR'S WASTE PROFILE SHEET PLEASE PRINT IN INK OR TYPE F. PHYSICAL CHARACTERISTICS OF WASTE (See Instructions) 1. Color 2. Does the waste have 3. Physical State @ 70 F/21 C. 4. Layers 5. Specific Gravity 6. Free LquEds. a strong incidental odor? ❑ Solid ❑ Semi-Solid ❑ Multi-layered ❑ Yes ❑ No ❑ No ❑ Yes: if so. ❑ Liquid ❑ Powder ❑ Bi-layered Range Volume. describe: ❑ Other: ❑ Single Phased • - 7. pH: ❑£2 ❑>2-4 ❑4-7 0 7 ❑7-10 ❑ 10- <12.5 ❑=12.5 ❑Range ❑ NA. 8. Flash Point: 0 None ❑<140°Fr60°C ❑ 140 - 199°F/60 - 93'C ❑>200`F/93'C ❑Closed Cup ❑Ooer Cup G. CHEMICAL COMPOSITION RANGE(MIN-MAX) 1 - 0 2. Does the waste contain any of the following? (provide concentration if known): 0. 0 NO or LESS THAN or • ACTUAL % PCBs ❑ - ❑< 50 ppm porn Cyanides ❑ ❑< 30 ppm corn • - 00 Sulfides ❑ ❑< 500 ppm Dorn - 0 qo Total: Please note: Unless analytical results are attached, the chemical composition identification should include, at a minimum. Arsenic. Banum Cadmium. Chromium, Lead, Mercury. Selenium, Silver, Pesticides. Herbicides. and any other TCLP constituents that may no present in the waste. The total composition must be greater than or equal to 100%. (.0001%.= 1 ppm or 1 mg/I 3. Indicate method used to determine composition (if provided): ❑ TCLP 0 Total 0 Other: H. SAMPLING SOURCE(e.g., Drum, Lagoon, Pit, Pond,Tank,Vat) I. REPRESENTATIVE SAMPLE CERTIFICATION 1. Print Sampler's Name: 2. Sample Date: 3. Sampler's Title: 4. Sampler's Employer(if other than Generator): The sampler's signature certifies that any sample submitted is representative of the waste described above pursuant to 40 CFR 261.20(c) or equivalent rules. 5. Sampler's Signature J. GENERATOR CERTIFICATION By signing this profile sheet, the Generator certifies: 1. This waste is not a "Hazardous Waste" as defined by USEPA or Canadian Federal regulation and/or the state/province. 2. This waste does not contain regulated radioactive materials or regulated concentrations of PCB's (Polychlorinated Biphenyls). 3. The unshaded portions of this sheet and the attachments contain true and accurate descriptions of the waste material. All relevant informa- tion regarding known or suspected hazards in the possession of the Generator has been disclosed. 4. The Generator has read and understands the Contractor's Definition of Special Waste included in Part 8.5.of the attached instructions form All types and amounts of special wastes provided in incidental amounts have been identified in section 8.6. of this form. 5. The analytical data presented herein or attached hereto were derived from testing a representative sample taken in accordance with 40 CFR 261.20(c) or equivalent rules. 6. If any changes occur in the character of the waste, the Generator shall notify the Contractor prior to providing the waste to the Contractor. 7. Signature 8. Title 9. Name (Type or Print) 10. Date Skle 2 34 0121 V,ltA4-41?I dL'/92 GENERATOR'S WASTE PROFILE SHEET INSTRUCTIONS Information on this form, is used to determine if the waste may be transported, treated, stored or disposed in a legal. safe, and environmentally sound manner. This information will be maintained in strict confidence. Answers must be provided for all sections of this form, and must be printed in ink or typed. A response of "NONE." or "NA" (not applicable) can be made, if appropriate. If additional space is needed, indicate on the form that additional information is attached, and attach the information to the Generator's Waste Profile Sheet. Shaded areas of the attached form are for Contractor's use only. If you have questions concerning this form. please contact Contractor's sales representative. PART A. WASTE GENERATOR INFORMATION 1. GENERATOR NAME - Enter the name of the facility where the waste is generated. 2. SIC CODE - Enter the 4-digit Standard Industrial Classification Code for the facility where the waste is generated. 3. FACILITY ADDRESS - Enter the street address (not P.O. Box) of the facility where the waste is generated. 4. GENERATOR CITY, STATE/PROVINCE - Enter the city and state or province where the waste is generated. 5. ZIP/POSTAL CODE - Enter the generating facility's zip or postal code. 6. GENERATOR USEPA/CANADIAN FEDERAL ID- Enter the identification number issued by the USEPA or CANADIAN FEDERAL AGENCY to the facility generating the waste (if applicable). 7. GENERATOR STATE/PROVINCE ID - Enter the identification number issued by the state or province to the facility generating the waste (if applicable). 8. TECHNICAL CONTACT - Enter the name of the person who can answer technical questions about the waste. 9. PHONE - Enter technical contact's telephone number. PART B. WASTE STREAM INFORMATION 1. NAME OF WASTE - Enter a name generally descriptive of this waste (e.g., paint sludge, contaminated soil. incinerator ash, untreated medical waste, friable asbestos, fluorescent bulbs). 2. PROCESS GENERATING WASTE—List the specific process/operation or source that generates the waste(e.g., paint spray booth, spill clean up, incineration of municipal refuse, asbestos 'removal, building maintenance). 3. ANNUAL AMOUNT/UNITS — Enter the amount of waste that will be generated and transported annually. Use appropriate units to describe this volume (e.g., cubic yards, gallons, kilograms, pounds). 4. WASTE TYPE - Based upon reading the Contractor's Definition of Special Waste that is included in section B.5 of these instructions, determine whether your waste is a "Type A Special Waste" or a "Type B Special Waste". Indicate the proper response in the space provided. 5. SPECIAL HANDLING INSTRUCTIONS/SUPPLEMENTAL INFORMATION - For all wastes, describe any special handling requirements and any additional information that you feel would assist in determining the proper method(s)for transportation, treatment, storage, and disposal of the waste. For Type B Special Waste, provide the "supplemental information" requested after each applicable definition. CONTRACTOR'S DEFINITION OF SPECIAL WASTE a. "Special Waste" means Type A or Type B Special Wastes as defined below. b. "Type A Special Waste" means any waste from a commercial or industrial activity meeting any of the following descriptions: i. A waste from an industrial process. • ii. A waste from a pollution control process. iii. A waste containing free liquids. iv. Residue and debris from the cleanup of a spill of a chemical substance or commercial product or a waste listed in i.-iii., or v.-vii. of this definition. v. Contaminated residuals, or articles from the cleanup of a facility generating, storing, treating, recycling, or disposing chemical substances, commercial products, or wastes listed in i.-iv., vi., or vii. of this definition. vi. Any waste which is non-hazardous as a result of treatment pursuant to Subtitle C of the Resource Conservation and Recovery Act (RCRA). vii. Chemical-containing equipment removed from service, in which the chemical composition and concentration are unknown. • WMNA-4151 (02/92) Side 1 of 4 E+ 9'!.1)1?1 c. "Type B Special Waste" means any waste from a commercial or industrial activity meeting any of the following descriptions: i. Friable asbestos waste from building demolition or cleaning; wall board, wall or ceiling spray coverings, pipe insulation, etc. This does not include nonfriable asbestos unless it has been processed, handled or used in such a way that asbestos fibers may be freely released. Asbestos-bearing industrial process waste is a "Type A Special Waste". Supplemental Information - List the source (e.g., building demolition, pipe insulation removal) of the asbestos or asbestos containing material(s) and the type of asbestos containing material (e.g., pipe insulation). List the proper USEPA or Federal (and/or state or provincial) waste identification code (if applicable). List the wetting agent(s) used to wet the asbestos material before packaging and include its chemical composition or a current Material Safety Data Sheet. List the size and type of container(s) that will be used to contain the asbestos. Indicate whether the asbestos has been contaminated with any other wastes, and if so, list them. J. Commercial products or chemicals which are off-specification, outdated, unused, or banned. Outdated or off-specification uncontaminated food or beverage products in original consumer containers are not included in this category, unless management of such containers is restricted by applicable regulations. Containers which once held commercial products or chemicals are included in this category unless an end has been removed (for containers larger than 25 gallons), and the container is empty as defined by RCRA, the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), or other applicable regulations. • RCRA considers a container to be empty when: all wastes have been removed that can be removed using me practices commonly employed to remove materials from the type of container (e.g., pouring, pumping or aspirating), and no more than 1 inch (2.54 centimeters) of residue remains on the bottom of the container or inner liner, or no more than 3% by weight of the total capacity of the container remains in the container or inner liner (for containers < 110 gallons), or no more than 0.3% by weight of the total capacity of the container remains in the the container or inner liner(for containers > 110 gallons). Containers which once held ACUTELY HAZARDOUS WASTES must be triple rinsed with an appropriate solvent or cleaned by an equivalent method. The pressure in cylinders of compressed gas and aerosol cans must be substantially equivalent to atmospheric pressure. • Containers which once held pesticides regulated under FIFRA must be emptied according to label instructions. Supplemental Information - List the commercial product or chemical and include the proper waste identification code (if applicable) for that material. List whether the commerical product or chemical has been banned. if so. why and by what agency. List whether the commercial product or chemical is off-specification and why. Attach copies of the most current Material Safety Data Sheets, if they exist. Indicate the current state of the waste (e.g. sludge, liquid, solid). iii. Untreated medical waste - Any waste capable of inducing infection due to contamination with infectious agents from bio-medical sources including but not limited to a hospital, medical clinic, nursing home, medical practitioner, mortuary, taxidermist, veterinarian, veterinary hospital, animal testing laboratory, or medical testing laboratory. Sharps from these sources must be rendered harmless or placed in needle puncture—proof containers. Supplemental Information - List the source from the list above. List the specific waste type(s) and include appropriate warnings for the handling of these wastes. Indicate any special requirements for the labeling, packaging and storage of these waste types. iv. Treated medical waste - Any wastes from a bio-medical source including but not limited to a hospital, medical clinic, nursing home, medical practitioner, mortuary, taxidermist, veterinarian, veterinary hospital, animal testing laboratory or medical testing laboratory which has been autoclaved or otherwise heat treated or sterilized so that it is no longer capable of inducing infection. Any sharps from these sources must be rendered harmless or placed in needle puncture-proof containers. Residue from incineration of medical waste is a "Type A Special Waste-. Supplemental Information - List the source from the list above. Specify how the waste was treated. • • WMNA-4151 (02/92) Pith. 2 of 4 9101:21 JRN 17 ' 94 13: 58 PAGE . lJ02 JAN 17 '94 12: 13 FRL„ WASTE MGMT RCKY MTN TO 13526242 PAGE.002,007 • ant,lns._West Pletki c 2400 Vast union Sow CAfO'Wo 10110 303/7117,2400 • • January 5, 1994 Lee D. Morrison, Assistant Weld County Attorney Office of the County Attorney P.O. Box 1948 915 Tenth Street Greeley, CO 80631 Dear Lee: As we discussed yesterday, we are in receipt of Greg Hobbs'letter of January 3rd, in which he proposes to amend the Closure Plan for the Central Weld Sanitary landfill by incorporating the Resolution adopted by the Weld County Commissioners on October 13, 1993 into the Plan. n We believe that the Closure Plan submitted to the Weld County Health Department and the • Colorado Department of Health is a complete and adequate document. We have responded to comments on the Closure Plan from both agencies. On December 27, 1993,CDR recommended approval of the Closure Plan. Neither agency requested that any of the terms of the Resolution be incorporated into the Closure Plan. We'do not believe that either state law or the Resolution require incorporation of any terms of the Resolution into the Plan. However, in a continuing spirit of cooperation, Waste Management is willing to include within the Closure Plan those provisions of the Resolution as attached that might be appropriate for such inclusion. Even though we do not believe these changes are necessary, we hope that our proposal will resolve this matter expeditiously, and without further ado. Thanks for your assistance. Please give me a call at(303)797-4681 once you have had a chance to review our proposal. Sincerely, • L. Marian A. King • Senior Envirunmemal Counsel MAK:jw • • ** TOTAL PRGE . 002 ** 940121 JAN-17-94 MON 9:59 U1/19/U6 1u:0U P. OL anal STATE OF COLORADO COLORADO DEPARTMENT OF HEALTH Dedicated to protecting and imptwing the health and environment of the people ofCCooiorraddoo r ,'1i•-. 4300 Chary Gaek Or.S. Laberanny BS 4b+g ``.�;%/' '• Denver,Colorado 80222.1530 4110E 11th Avenue Mona{3031642-2000 Denver,Colorado 00220-3716 ..._.._ 003169t-4700 Roy Romer Gae ror Jannary 14, 1994 *ankh A. MPH Metre William Hedberg I^ � Waste Services Corporation 1 i� 6037 77th Avenue ffff i JAN 1'41 Greeley, Colorado 80634 RE: Closure Plan Central Weld Sanitary Landfill Weld county Dear Mr. Hedberg. The Hazardous Materials and Waste Management Division of the Colorado Department of Health (the Division)has reviewed your letter dated January 7, 1994. Your letter is in responds to the Division's letter of December 27, 1993, concerning the Closure Plan for Central Weld Sanitary Landfill (CWSL). Your reply adequately addresses the Division's comments detailed in the December 27, 1993 letter. If you have any questions regarding this matter, please contact me at 692-3437. SintcereX Roger Doak Geologist Solid Waste Section Hazardous Materials and Waste Management Division cc: Weld County Commissioners G.Dunn, Weld County Planning T. Tiricek, Weld County Health Department A. Scheere, Waste Services Corporation file: SW/WLD/rFN#6 • Post-Ir brand fax transmittal morn tarp e ■ lam. ► � S 2_►� �� .��M�* • f/�Y1:1►fY *rii1►►11..1��1.'Al��e Dap. Phone* � .ittt711, Arc t Fax JAN 17 '94 10:05 PAGE.002 910121 �A 1i 54 i;ON 10:00 P. 04 f '113 '4 mEmoRAnDum wilkTo Gloria Dunn, W.C. Planning Dot. January 17, 1 9 COLORADO From Trevor Jiricek, W.C. Health Department . &bjectc Central Weld Sanitary Landfill, Closure/Po t-closure Plan The Environmental Protection Division has completed its review of the Closure/ Post-Closure plan and subsequent amendments for the Central Weld Sanitary Landfill. The Division has found the Closure Plan and amendments to be acceptable and approves of the documents. • JAN 17 '94 10:06 PAGE.004 940121 JH>-17-=954 11:21 FRO' TO 3510978 P.01 poet--It"'brand tax transmittal memo 7671 •a pigs AO'S\ co .71:Ir1G �1 Ram �I ! - ••P Nita co wpe. Phoro� January 7, 1994 Mr. Roger Doak Colorado Department of Health Hazardous Materials and Waste Management Division 4300 Cherry Creek Drive South HMWMD-SWIM-B2 Denver Co 80222-1530 SUBJECT: CENTRAL WELD SANITARY LANDFILL (CWSL) CLOSURE/POST-CLOSURE PLAN Dear Mr. Doak: This letter is in response to the Colorado Department of Health (CDH) comment letter of December 27, 1993, concerning the Closure/Post-Closure Plan for Central Weld Sanitary Landfill. For your convenience, each CDH comment is provided below followed by CWSL's response. CDN Comment 01: "The Division requests the soil loss for the six inch erosion layer be calculated for the life of the post-closure period. If the soil loss is significant over the post-closure period, then the erosion layer shall be adjusted accordingly." CWSL Response: As discussed during our phone conversation on January 4, 1994, CWSL understands that the attached letter from the west Greeley soil Coservation District dated December 28, 1993, satisfies the r_nncerns of CDH related to soil loss of the erosion layer during the post-closure period and therefore resolves this issue. Nevertheless, post-closure care and maintainance at the site will include site inspections to assess the condition of the final cover system. Inspections of the cover system including specifically any coil loss of tha erosion layer will be conducted and appropriate repairs completed to maintain the integrity of the cover system. CDH Comment #2: "In addition to Appendix I constituents of the Regulations, ground water quality monitoring shall include two volatile organic wpsl\letter\cwslclsres !: ewe]. 4.15 JAN 17 '94 10;20 PAGE.001 940121 JAN-17-1994 11:21 FROM TO 3510978 P.02 • Letter Roger Doak January 7, 1994 Page 2 compounds, Dichlorofluoromethane and Dichlorodifluoromethane, which have been detected at the facility and are not specified in Appendix I. These parameters are listed in the quarterly groundwater monitoring data for this facility." CWSL Response: CWSL agrees to include Dichlorofluoromethane and Dichlorodif)uoromethane to the post-closure groundwater monitoring program at CWSL. Should you have any questions regarding this letter please, contact us at 654-1133. Sincerely, n6 Dill Hedberg Alan Scheere Division V.P. Landfill Operations Environmental Specialist As/as Enclosure cc: Weld County Commissioners Gloria Dunn, Weld County Planning Trevor Jiricek Mr. and Mrs. Michael Hayes Mrs. Jane Carlson Mrs. Samuel Telep wpSl\letter\ewslalsres Ps ewes 4.15 JAN 1? '94 10:21 PAGE.002 96_10121 JAN-17-1994 11:21 FRF TO 3510978 P.03 eagetnicn NMI West Greeley Soil Conservation District P.G. Box 86 • Greeley,Colorado 80632 • December 28, 1993 Alan Scheere, Environmental Specialist Waste Services Corporation 6037 77th Avenue Greeley, CO 80634 Mr. Scheere; I have finished my review of the seeding recommendations for the Central Weld Sanitary Landfill. The soil types involved are a sandy loam similar to those at the Northern Weld Sanitary Landfill. After consulting with the SCS and visiting the .site, I feel that the grass varieties recommended for the northern site will provide adequate vegetative cover for the central landfill, as long as the 6 inch topsoil layer is maintained. To ensure adequate depth I would recommend that a lift of topsoil 9-10 inches deep be placed over the clay barrier to allow for compaction. Sincerely, Michael G. Shay District Manager • • • • CONSERVAIIVN . UCVELOPMENT . S eLr.00VCI1NMEN! TOTAL P.03 JAN 17 '94 10:21 PAGE.003 9'W1%i STATE OF COLORADO COLORADO DEPARTMENT OF HEALTH oc•coco Dedicated to protecting and improving the health and `` environment of the people of Colora o He N 4300 Cherry Creek Dr.S. Laboratory Building •‘ 4•494 � Denver,Colorado 80222-1530 4210 E.11th Avenue *476• Phone(303)692-2000 Denver,Colorado 80220-3716 (303)691-4700 ^qy^ Roy Romer `rtr 411}4r`t/Y/f �� Governor December 27, 1993 Patricia A.Nolan,MD,MPH r Executive Director Bill Hedberg JAN 0 5 4994 • Waste Services Corporation - . 6037 77th Avenue Weld County Planning Greeley, Colorado 80634 r— I C m RE: Closure Plan - Central Weld Sanitary Landfill ,7 Weld County ' Dear Mr. Hedberg: The Hazardous Materials and Waste Management Division of the Colorado Department of Health(the Division) has completed its review of the Closure Plan and subsequent amendments for the Central Weld Sanitary Landfill (CWSL). This site is located in Section 32, Township 5 North, Range 66 West. The facility,which contains 110 acres, was used for solid waste disposal. All documents were reviewed to determine their compliance with the minimum standards set forth in the Solid Wastes Disposal Sites and Facilities Act, Title 30, Article 20, Part 1, CRS as amended and with the regulations promulgated thereunder, 6 CCR 1007-2 ( the Regulations). The Division has the following comments: 1. The Division requests the soil loss for the six inch erosion layer be calculated for the life of the post- closure period. If the soil loss is significate over the post-closure period, then the erosion layer shall be adjusted accordingly. 2. In addition to Appendix I constituents of the Regulations,ground water quality monitoring shall include two volatile organic compounds,Dichlorofluoromethane and Dichlorodifluoromethane,which have been detected at this facility and are not specified in Appendix 1. These parameters are listed in the quarterly ground water monitoring data for this facility. The Division requests written concurrence on these comments prior to commencement of closure activities. It is the assessment of this Division that the facility can comply with the requirements of the Regulations, if the facility is closed as detailed in the Closure Plan, amendments and the aforementioned comments. Based on this assessment, the Division recommends approval of the closure design of this faci If you have any questions concerning this matter, please contact Roger Doak at 92-3437. Sincerely, ax‘ ora Roger Doak g lean F. Mallory Geologist Section Leader Solid Waste Section Solid Waste Section Hazardous Materials and Hazardous Materials and Waste Management Division Waste Management Division cc: Weld County Commissioners` G. Dunn, Weld County Planning Department T.Jiricek, Weld County Health Department file: SW/WLD/CEN #6 9t' 1 .3 r-' Michael S. Hayes 8200 W. 49th Street, Greeley Colorado 80634 Chuck Cunliffe December 22, 1993 Director Weld County Planning Department Greeley, CO Mr. Cunliffe, I was very dismayed to find out yesterday through our attorney that the Weld County Planning Department was holding a public hearing on the closure plan of the Central Weld Sanitary Landfill (Dec. 21, 1993 @ 1.00pm). Our triparty agreement with Weld County (through Mr. Lee Morrison and yourself), Waste Management (Ms. Marion King and Mr. Tom Buchholz) and our neighborhood specifically stated and was understood by all that we would work together and you would notify us of any upcoming public hearings or meetings. As adjacent landowners surrounding the CWSL you should in arty event notify us before any public hearings or meetings which may affect our properties. Because of your neglect, no such notice was given by your office. Your actions are not only callous but may seriously jeopardize the tenuous situation surrounding the Central Weld Landfill and exacerbate an already volatile issue. They bring great discredit on the Weld County administration. Of concern to our group was the lack of specific reference to the triparty agreement signed at the Weld County Commissioners office and subsequently adopted as a resolution during the October 13, 1993 County Commissioners hearing on the Central Weld County Landfill. At a minimum the CWSL closure and post closure plan should include not only language reflecting this agreement but also an appendix to include the resolution of the Weld County Commissioners adopted 13 October 1993. In the future, I insist on at least 30 day notification of any proposed meetings or hearings on the Central Weld Sanitary Landfill. Furthermore, please include in your notification; Mr. Greg Hobbs, Mr. Sam Telep, and Ms. Jane Carlson. Sincerely, D r n 0.7.‘ `p Gl2az��s�45 DEC 2 9 1993 Michael Hayes Weld County Planning cc: Barbara Kirkmeyer, Weld County Commissioner-Planning Weld County Commissioners Lee Morrison, Weld County Asst. Attorney 940121 • •, DEPARTMENT OF PLANNING SERVICES PHONE (303)353-3845, EXT. 3540 WELD COUNTY ADMINISTRATIVE OFFICES Jt 1400 N. 17TH AVENUE $ ?' }�ry! GREELEY, COLORADO 80631 COLORADO December 29, 1993 Mr. Michael S. Hayes 8200 W. 49th Street Greeley, CO 80634 Subject: Central Weld Sanitary Landfill Closure/Post-Closure Plan. Dear Mr. Hayes: Thank you for your letter of December 22. Quite frankly, I was surprised to receive your letter since I was under the impression that our office had notified all adjacent landowners and owners and lessees of the minerals . However, in reviewing the case file I discovered that our office did not notify the property owners within 500 feet of the property, the mineral owners and lessees , or the parties who signed the agreement with Waste Management Services. Our office has no established notification procedure or public review for a landfill closure plan. Our office did publish a legal notice for the December 21, 1993 , Planning Commission meeting and as I have indicated it was my understanding that we had notified the property and mineral owners as well. To remedy the department' s mistake, notices are being mailed to the property and mineral owners. I have enclosed a copy of the notice for you. As you can see the Planning Commission continued the matter to its January 4, 1994, meeting. Our office has not received a final recommendation from the Colorado Department of Health and as a result, there is a possibility that the matter will be continued again by the Planning Commission at the January 4 meeting. I would also like to remind you that the Board of County Commissioners is scheduled to consider the closure plan at a public meeting scheduled for January 5, 1994, at 10:00 a.m. This hearing date was set at the October 13, 1993, Board of County Commissioners' meeting that. you attended. It is also my understanding that you were provided a copy of the closure plan for your review and comments. I apologize for any inconvenience the department' s mistake may have caused. Please direct any comments or questions about the closure plan to Gloria Dunn, Current. Planner. She is the Planning staff member that is working on the closure plan. Sincerely, Chugliffe, AICP Director Enclosure 3'WIa1 JAN 17 '94 12: 13 FROM 9STE MGMT RCKY MTN TO 135" '242 PAGE.003i007 CLOSURE PLAN n C-7) •� L) 2.1.1 Description This closure plan describes the steps that will be taken to close CWSL at any point during its active life. The Landfill will not exceed the elevations, grades, and contours shown on Figure 3, attached hereto. The maximum elevation will not exceed 4855 feet above mean sea level. Landfilling and closure activities will proceed north to south so that the maximum allowable height is reached soonest along the northern part of the Landfill. The target date for cessation of waste disposal activities is December 31, 1996. Waste disposal activities will not continue beyond December 31, 1997. If, due to circumstances beyond the reasonable control of Services, waste contours and elevations sufficient to reach the final contours and elevations depicted in Figure 3 are not reached throughout the Site on or before December 31, 1996, waste disposal activities will continue only until waste contours and elevations sufficient to achieve final contours and elevations are reached. If waste disposal activities extend beyond December 31, 1996, Services will complete the installation of final cover and drainage controls within six months of final receipt of waste. Activities necessary for the installation of the final cover, cap and drainage controls and initiation of vegetation will not extend beyond June 30, 1998. Ix,,,ejt • 1P\ • 940121 JAN 17 '94 12: 13 FROM ASTE MGMT RCKY MTN TO 135"242 PAGE. 004i007 '72.1:1 Description (continued) : _Li rU u Routine closure of the Site will occur when the above conditions have been met. Premature closure will occur if the facility is required to close prior to meeting these conditions. For this plan, premature closure costs have been estimated for the largest area of the Site which would require closure during the operating life. This plan will be reviewed annually and updated as needed. JAN 17 '94 12: 13 FROM 'ASTE MGMT RCKY MTN TO 135 ?42 PRGE.005/007 POST-CLOSURE PLAN S R1 r ~ 4 3.1.2 End Use Upon closure of the Site, the facility will return to agricultural use, as it is currently zoned, or other uses for which it is zoned at the time. Services will not pursue any request for approval of waste handling, storage, transfer or disposal activities on the Site beyond December 31, 1997. Following final closure of the Landfill, no portion of the Site will be used for handling, storage, transfer or disposal of waste whatsoever. Closure/post-closure activities and remedial activities, any other activities required by Federal, State or local agencies may be conducted on the Site. The present zoning is Agricultural. Any other future use of the Site will be subject to the physical constraints of the Site, such as soil and slope stability, and will also be subject to all applicable land use, zoning and permitting requirements, including public review and comment. All buildings and other structures on the Site will be removed within six months of final closure of the Landfill, and, in no event, later than Tune 30, 1998, except that the residence, one additional existing building and temporary sheds necessary for closure/post-closure or remediation activities may remain. The one additional existing building and temporary sheds will be removed when they are no longer reasonably needed for closure/post-closure or remedial activities. Services will not construct any buildings on that portion of the Landfill as depicted in Figure 3a that would further restrict the view from the viewpoint as depicted in Figure 3a, except any temporary buildings necessary for closure/post-closure or remedial activities. No building on the Site will be utilized for the conduct of truck or equipment storage, maintenance or parking, except as required to complete closure/post-closure or remedial activities. This end use, should have minimal impact on the final cover, and the use should not interfere with post- closure monitoring. JAN 17 '94 12: 14 FROM gSTE MGMT RCKY MTN TO 135' ?42 PRGE.006/007 uFN, r1 � 11 itt /�. 3.2 Post-Closure Activities 4. Groundwater Monitoring - The groundwater monitoring system will be monitored in accordance with the GWMP. Additional monitoring requirements may be required by Weld County after initial data is collected from the three recently installed wells. These wells will be monitored to measure changes in water quality, if any, from the time the wells are installed to expiration of the post-closure monitoring period as established for the Site by the Colorado Department of Health under laws and regulations applicable at the time the monitoring period is established or modified. Conditional on the results of the initial sampling, the frequency of monitoring and the parameters to be sampled and tested will be as determined by the Colorado Department of Health in consultation with the Weld County Health Department. Services will provide test results of all samples taken from the wells, promptly upon receipt of confirmatory results to the Weld County Health Department. Depending on the monitoring well analytical data obtained during the Site operating period, the number of wells and monitoring frequency may be reduced during the post-closure period with concurrence of the CDH in consultation with Weld County. For this plan, it is estimated that the wells will be monitored semi-annually for post-closure years 1-5 and annually thereafter. Samples will be analyzed for the Colorado Appendix I constituents listed in Appendix A of this plan. The results of all analysis will be placed in the Site's operating record. Monitoring results will be reviewed and a statistical evaluation performed comparing each event's results to established background levels. Monitoring will continue during the post-closure period and if a statistical significant increase over background levels are exceeded, confirmation sampling and if necessary corrective action monitoring will be performed in accordance with the GWMP. In 946121 JAN 17 '94 12: 14 FROM ASTE MGMT RCKY MTN TO 135 ?42 PAGE.007/007 Cr • 3.2 Post-Closure Activities (continued) t! j1 r� ll addition to sampling, it is estimated that one well of the pumping system will require repair each year and a new pump installed each five years. The integrity of the monitoring system will be inspected during the monitoring events. Any required repairs will be noted and corrected. • KIIi(A4tLOSURtCW1.4PGS ** TOTAL PAGE.007 ** 940121 Weld County Planning Meeting on Closure of CWSL 18 Jan 94 Fick I bi 4 a 1. The Neighborhood requests that the full text of the Weld County Commissioner's Resolution (13 Oct 93) regarding this landfill be attached as an appendix forming the basis for the closure plan itself. 2. Since the operator neglected to consult with the adjoining neighbors per our agreement regarding landscape planning and the operator used seeding rates for revegetating 1 to 5 % slopes when in fact the final slopes are from 5 to 10%, the Neighborhood requests heavier seeding rates for native grasses and suppression of noxious weeds. In addition, the Neighborhood requests a formalized landscape plan to include scale drawings of trees and shrubs. The Neighborhood provided draft sketches of our ideas to the operator last week. The operator agreed in principle and assured us in good faith these sketches would be finished and delivered to the Neighborhood two weeks before the Commissioner's hearing scheduled Feb. 2, 1994 for review, input and close cooperation of a mutually acceptable landscape plan. 3. Revised Groundwater Plan (dated 29 Oct. 93) requested decommissioning of one of the original 15 monitoring wells. In light of the most recent groundwater tests and the evidence of continued and newly discovered contamination plumes of migrating offsite groundwater contamination , we request that no monitoring wells be decommisioned and additional monitoring wells be placed to track this latest development. 4. Referring to Post Closure site inspections, the operator agreed with the State Health Dept. request to perform site inspections quarterly for the first two years and then annually thereafter. The Neighborhood requests that the site inspections be performed quarterly for the first two years, semi-annually thereafter. 5. Referring to the Post Closure groundwater monitoring inspections, the operator agreed to perform monitoring quarterly for the first two years, semi- annually for years three to five, and then annually thereafter. The Neighborhood requests that monitoring continue quarterly until remediation efforts indicate compliance for two continuous years and then semi-annually for five years. If during the five years, monitoring indicates contamination non-compliance and further offsite migration, monitoring should resume on a quarterly basis until another two year compliance is attained. If five years of semi-annual monitoring indicates compliance and no further indication of offsite migration of contamination, the Neighborhood agrees to monitoring on an annual basis. The Neighborhood requests these provisions be extended to the surface water to include the underdrain and french drain outlets. Michael S. Hayes Ashton Daniels Neighborhood -: 8200 W. 49th St. I EXHIBIT Greeley, CO 80634 h<j-i°i 50 , 940121 _,JLlN1 ">, /L1Cd(y @ 10 AM Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 1�� A Waste Management Company 303/330-2641 - - - October 8 , 1993 Mr. Roger Doak Colorado Department of Health HMWMD-SWIM-B2 4300 Cherry Creek Drive South Denver, Colorado 80222-1530 Board of Weld County Commissioners Centennial Center 915-10th Street Greeley, Colorado 80631 SUBJECT: CLOSURE/POST-CLOSURE PLAN CENTRAL WELD SANITARY LANDFILL (CWSL) Dear Mr. Doak and Board of County Commissioners: Enclosed for your review and approval is the "Closure/Post Closure Plan, Central Weld Sanitary Landfill, Weld County, Colorado" dated October, 1993 , prepared by Rust Environment and Infrastructure. This plan has been prepared for CWSL in accordance with the Revised Regulations Pertaining to Solid Waste Disposal Sites and Facilities, 6 CCR 1007-2 dated June 30, 1993, which becomes effective October 9, 1993 , and the "Agreement of Hayes, Telep and Carlson and Waste Management Disposal Services of Colorado, Inc. " signed October 1, 1993 . This Closure/Post Closure Plan will be placed in the operating record at CWSL, as required, upon approval by the Colorado Department of Health and the Board of Weld County Commissioners after review and comment by the Weld County Health Department and Michael and Ann Hayes, Samuel and Myrtle Telep and Jane Carlson. Please contact Bill Hedberg or Alan Scheere if you have questions concerning this plan. Sincerely, Bill Hedberg Alan Scheere Division V.P. Landfill Operations Environmental Specialist r LL /'� 931070 nf "„� Lxh ;ULt/T r12 As/as Enclosure cc: Mr. John Pickle, WCHD w/enc. Mr. Chuck Cunliffe, Weld County Planning Department w/enc. Mr. and Mrs. Michael Hayes, w/enc. Mrs. Jane Carlson, w/enc. Mr. and Mrs. Samuel Telep, w/enc. wp51\as\letter\CWSLCLS F: CWSL 4.15 940121 CLOSURE/POST-CLOSURE PLAN CENTRAL WELD SANITARY LANDFILL WELD COUNTY, COLORADO ut Y Prepared for: �` s '' „At:.a]]� ' t rx } Waste Management Disposal Services of Colorado, Inc. r° (a.k.a. Waste Services Corporation) �� a= Central Weld Sanitary Landfill ' •. ;4 ! 6037 77th Avenue lR JNstivENEsst r' Greeley, Colorado October 8, 1993 Rus-r ENVIRONMENT& INFRASTRUCTURE GJ FLn,urrly SFC O0,mh,,. ESC 1tdds+ A Central Weld Sanitary Landfill Closure/Post-Closure Plan CLOSURE/POST-CLOSURE PLAN CENTRAL WELD SANITARY LANDFILL TABLE OF CONTENTS Section Pace 1.0 INTRODUCTION 1-1 1.1 PURPOSE 1-1 1.2 FACILITYINFORMATION 1-1 1.2.1 Site Location 1-1 1.2.2 Site Siting Criteria 1-2 1.2.3 Site Documents 1-2 1.2.4 Waste Characteristics 1-2 1.2.5 Water Management 1-3 1.2.6 Site Monitoring 1-3 1.2.7 Site Operations 1-3 1.2.8 Site Corrective Measure Program 1-4 2.0 CLOSURE PLAN 2-1 2.1 INTRODUCTION 2-1 2.1.1 Description 2-1 2.1.2 Regulatory Requirements 2-1 2.2 FINAL COVER 2-2 2.2.1 Description 2-2 2.2.2 Construction 2-3 2.2.3 Quality Control/Quality Assurance (OA/OC) 2-3 2.3 ROUTINE CLOSURE 2-4 2.4 PREMATURE CLOSURE 2-4 2.4.1 Description 2-4 2.4.2 Premature Closure Activities 2-5 2.5 PREMATURE CLOSURE SCHEDULE 2-6 3.0 POST-CLOSURE PLAN 3-1 3.1 INTRODUCTION 3-1 3.1.1 Description 3-1 3.1.2 End Use 3-1 3.1.3 Regulatory Requirements 3-1 3.2 POST-CLOSURE ACTIVITIES 3-2 mw.lavcwcra.CLvtmx 1 94t ..gbt S'993 Ke Central Weld Sanitary Landfill Closure/Past-Casure Plan CLOSURE/POST-CLOSURE PLAN CENTRAL WELD SANITARY LANDFILL LIST OF FIGURES Figure 1 Site Location Map 2 Site Vicinity Map 3 Revised Final Grades 4 Central Weld Sanitary Landfill Vegetation Plan 5 Premature Closure Area 6 Premature Closure Schedule LIST OF APPENDICES Appendix A Appendix I Ground Water Monitoring Constituents for Detection Monitoring Appendix II Ground Water Monitoring Constituents for Assessment Monitoring B Approved Special Waste Streams at Central Weld Sanitary Landfill C Soil Conservation Service, Recommendations for Plant Species and Bulk Seeding Rates - Weld County 87204100/CN'F11D.ct5MRH ii October 1993 940121 Central Weld sanitary Landfill Closure/Post-Closure Plan CLOSURE/POST-CLOSURE PLAN CENTRAL WELD SANITARY LANDFILL REVISION LOG DATE DESCRIPTION OF REVISION BY aa2LW.IO VCWELACIS/AfmN 111 Central Weld Sanitary Landfill Closure/Post-Closure Plan 1.0 INTRODUCTION _ 1.1 PURPOSE This Closure/Post-Closure Plan has been prepared for the Central Weld Sanitary Landfill (CWSL) to meet the following objectives: 1. Describe the steps necessary to close CWSL routinely according to this plan, the Site Development Plan, dated March, 1993 and the Design, Operations, and Closure Plan, dated March, 1993. 2. Describe the steps necessary to close CWSL prematurely at a point when the cost of closure would be the greatest. 3. Describe the activities to be conducted during the post-closure monitoring period. This plan has been prepared in accordance with the provisions of 40 CFR Part 258 (Federal Subtitle D) and the Colorado Regulations Pertaining to Solid Waste Disposal Sites and Facilities, 6 CCR 1007-2 (Regulations) which become effective October 9, 1993. Sections 2.5 and 3.5 of the Regulations pertain to closure activities and Sections 2.6 and 3.6 pertain to post-closure activities. 1.2 FACILITY INFORMATION 1.2.1 Site Location CWSL is located in Weld County, Colorado, five miles southwest of Greeley and three miles northeast of Milliken (Figure 1). Weld County Road 27 1/2 (77th Avenue) bounds the site on the east and provides access to the Facility. The facility is owned and operated by Waste Management Disposal Services of Colorado, Inc. (a.k.a Waste Services Corporation). The site along with buffer zones covers approximately 210 acres in the southwest quarter of Section 32,Township 5 North, Range 66 West (Figure 2). Of the 210 acres, approximately 100 acres acts as a buffer zone for CWSL. The buffer zone may be enoi tOCKWp p.cIS/MpH 1-1 October 1993 w.� 94. 3 1.21 Central Weld Sanitary Landfill Closure/Port-Closure Plan used for environmental monitoring/remedial activities and as a source of soils to be used in the operation and closure of CWSL. 1.2.2 Site Siting Criteria CWSL meets all of the Regulation's siting criteria. The siting criteria specified in the Regulations are: (1) Airports, subsection 3.1.1; (2) Floodplains, subsection 3.1.7; (3) Seismic Impact Zones, subsections 3.1.3and 3.1.4; (4) Wetlands, subsection 3.1.2;and (5) Unstable areas, subsection 3.1.5. A more detailed discussion of CWSL's Colorado Subtitle D regulations siting criteria compliance can be found in the "Design, Operations, and Closure Plan, Waste Services Corporation, Central Weld Sanitary Landfill, Weld County, Colorado" dated March, 1993. 1.2.3 Site Documents CWSL has prepared a number of documents, including the following, which cover design, technical evaluation, environmental programs and operation of the landfill: (1) "Site Development Plan for Central Weld Sanitary Landfill, Weld County, Colorado", prepared by RUST Environment & Infrastructure, revised March, 1993. (2) "Design, Operations, and Closure Plan, Waste Services Corporation, Central Weld Sanitary Landfill, Weld County, Colorado", prepared by RUST Environment & Infrastructure, revised March, 1993. (3) "Ground Water Monitoring Plan for the Central Weld Sanitary Landfill, Weld County, Colorado", prepared by Golder Associates Inc., revised March, 1993. (4) "Landfill Gas Monitoring Plan for Central Weld Sanitary Landfill, Weld County, Colorado", prepared by Golder Associates Inc., revised March, 1993. (5) "Access Control Plan for Special Waste Identification" at Central Weld Sanitary Landfill, prepared by Waste Management of Colorado, Inc., dated March, 1993. (6) "Interim Ground Water Measures Plan, Central Weld Sanitary Landfill", prepared by Golder Associates Inc., dated March, 1993. e72ot./W/CwnD.ps/MRl{ 1-2 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan (7) "Additional Site Characterization Report", Central Weld Sanitary Landfill, prepared by Golder Associates Inc., dated October, 1993. (8) "Expanded Hydrogeological Investigation at the Central Weld Sanitary Landfill", prepared by Golder Associates Inc., dated October 23, 1993. (9) "Additional Surface Water Sampling and Analysis at the Central Weld Sanitary Landfill, Weld County, Colorado", prepared by Golder Associates Inc., dated November 30, 1992. (10) "Pilot Test Scale Report", prepared by Golder Associates, Inc., dated October, 1993. (11) "Hydrogeological and Geotechnical Characterization for the Central Weld Sanitary Landfill, Weld County, Colorado", prepared by Golder Associates Inc.,dated March, 1993. 1.2.4 Waste Characteristics CWSL currently accepts household, commercial, and industrial solid waste. No hazardous waste, radioactive wastes, or polychlorinated biphenyls (PCB) are accepted by the facility. Pending approval of a resolution by the County, CWSL will accept the special wastes listed in Appendix B of this document. Appendix B identifies the wastes to be accepted, the handling procedures, and other specifications acceptable to the Weld County Department of Health (Weld County). To help identify and screen incoming wastes which may be excluded waste, the facility has implemented a hazardous waste exclusion program which is further described in the CWSL "Access Control Plan for Special Waste Identification". 1.2.5 Water Management The CWSL is located in a predominately agricultural area. Adjacent irrigation activities have required management of water levels below the landfill by construction of a landfill under drain and a perimeter french drain. The outlets for both irrigation water management systems require routine monitoring in accordance with the Colorado Discharge System Permit (CDSP) # CO-0043419. 1.2.6 Site Monitoring The current CWSL ground water monitoring program includes 15 monitoring wells. The wells are monitored on a quarterly basis. The groundwater monitoring program is further Fr1/N.100/CIVED.ashwRn 1-3 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan described in the "Ground Water Monitoring Plan for the Central Weld Sanitary Landfill, Weld County, Colorado" (GWMP). Four additional monitoring wells were installed downgradient of the landfill on the buffer property to provide additional compliance data southeast, south and southwest of the site. These wells will be included in the ground water monitoring plan. Three additional monitoring wells were installed on the southern property boundary of the site. These wells will be monitored, sampled, and samples analyzed initially to establish a baseline, and then for routine monitoring. The wells will be sampled initially for analysis of volatile organic compounds. After collection of this initial data, the frequency of monitoring and parameters to be monitored shall be determined by the CDH in consultation with Weld County. The current CWSL landfill gas monitoring program includes 21 gas monitoring probes. The probes are monitored on a quarterly basis. The landfill gas monitoring program is further described in the "Landfill Gas Monitoring Plan for Central Weld Sanitary Landfill, Weld County, Colorado" (LGMP). 1.2.1 Site Operations Site operations are described in the "Design, Operations, and Closure Plan" and the "Site Development Plan" completed for the Central Weld Sanitary Landfill, dated March, 1993. Final grades for the site have been revised from those shown in the Site Development Plan dated March, 1993. The revised final grades are depicted in Figure 3 and will be included as Sheet 7A of the Site Development Plan. The revised final grades are lower in elevation than those originally proposed. Disposal of refuse may continue at the facility until a maximum elevation of 4855 ft above mean sea level. CWSL has been designed to be operated, closed and monitored as one disposal unit, therefore, this Closure/Post-Closure Plan will address the site as a whole and not individual phases for closure activities. mg 100/CWIID.CLSsAIXN 1-4 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan 1.2.8 Site Corrective Measure Program Hydrogeologic and hydrogeochemical characterization of CWSL was conducted during 1992 to obtain site specific information concerning the shallow ground water downgradient of the facility. This information indicated that low concentrations of a select few volatile organic compounds existed in the shallow ground water immediately downgradient of the landfill within the buffer property. In order to reduce the concentration of the volatile organic compounds to below applicable standards, CWSL instituted a pilot scale remedial corrective program of air sparging to remove the volatile organic compounds from the shallow ground water and soils while, at the same time, enhancing in-situ biodegradation. The existing shallow ground water monitoring wells in the vicinity of the corrective measure areas are monitored to provide information as to the effectiveness of the air sparging pilot scale program. Additional information concerning the Air Sparging pilot scale test program can be found in the "Pilot Scale Test Report", prepared by Golder Associates, Inc., dated October, 1993. The Golder report shows that air sparging and soil vapor extraction are effective technic es for removing low level volatile organic compounds in ground water as evidenced by laboratory data showing non-detectable concentrations of volatile organic compounds in GWMW - 4, and GWMW - 5. The wells previously contained low level volatile organic compounds in the shallow ground water. arzol tmcwLln.CIS/1Gea 1-5 October 1993 9 el 0,ap n Central Weld Sanitary Landfill Closure/Post-Closure Plan 2.0 CLOSURE PLAN 2.1 INTRODUCTION 2.1.1 Description This closure plan describes the steps necessary to close CWSL at any point during its active life. Waste disposal activities shall continue only until waste contours and elevations reached as shown in Figure 3. However, in no event shall waste disposal activities continue beyond December 31, 1997.Routine closure of the site will occur when the above conditions have been meet. Premature closure will occur if the facility is required to close prior to meeting these conditions. For this plan, premature closure costs have been estimated for the largest area of the site which would require closure during the operating life. This plan will be reviewed annually and updated as needed. 2.1.2 Reeulatory Requirements This closure plan is prepared in accordance with Section 2.5 of the Regulations and will be placed in the operating record. Sections 2.5 and 3.5 of the Regulations list a number of required actions during site closure. These requirements have been incorporated in the following list of closure activities. Closure Plan 1. Prepare a closure plan for approval by the Colorado Department of Health (CDH), Weld County Commissioners and Weld County. This closure plan needs to include the steps necessary to close the landfill at any point during its active life, a description of the final cover system, an estimate of the largest area ever requiring closure, and a schedule for completing closure activities. 2. Maintain a copy of the closure plan in the operating record. 87N1.1%/CV D.QS/A,RRA 2-1 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan Closure Activities 1. 60 days prior to closure, notify the CDH and Weld County in writing that CWSL will be closing. 2. 60 days prior to closure, notify the general public of the CWSL closure by posting signs of suitable size at the site entrance. 3. Enact precautions to prevent unauthorized disposal. 4. Initiate routine closure activities within 30 days of reaching final design grades unless an extension beyond the 30 day deadline is granted by the CDH and Weld County. 5. Compete closure within 180 days after closure initiation, or if necessary, obtain an extension from the CDH and Weld County. Closure Certification 1. Following closure submit a report certified by a Colorado registered professional engineer to the CDH and Weld County documenting that closure has been completed in accordance with this closure plan. 'lace a copy of the report in the operating record. 2. Following closure, record a notation on the deed or other title instrument stating that the land was used as a landfill so its use is restricted. Notify the CDH and Weld County that the notation has been recorded and place a copy of the notation in the operating record. 2.2 FINAL COVER 2.2.1 Description Final grades have been designed to promote surface water runoff and minimize erosion. Final grade slopes are designed to be typically between 5% and 10%. The final cover design includes the following components: 1. Infiltration Layer - A minimum of 1.5 ft of soil which has a permeability of less than or equal to the natural soils underlying the landfill or a permeability not greater than 1 x 10-3 cm/sec will be placed over the daily and intermediate cover. This layer will e720$.1a6'CWFLD.cl wrxx 2-2 October 1993 .mot, 11 1 t-: P,1 Central Weld Sanitary Landfill Closure/Post-Closure Plan either be composed of onsite soils or of an alternate source to achieve the required permeability. 2. Erosion Layer- A minimum of 6 in of soil which is capable of sustaining native plant growth will be placed loosely over the protective layer. 3. Vegetation- The erosion layer will be seeded with shallow-rooted native plant species. Included in Appendix C are seeding and revegetation recommendations which were prepared by the Soil Conservation Service (SCS) for a landfill also located in Weld County. Given the close proximity of the sites (about 20 miles apart), these recommendations are considered applicable to CWSL. Prior to the placement of seed, the erosion layer soil will be analyzed to determine the proper fertilizer requirements for supporting the plant species to be planted. Should fertilizers or soil additives be required, they will be applied to the erosion layer before or after seeding. In addition, CWSL proposes a landfill vegetation plan for the site as shown on Figure 4. CWSL will contact the SCS at the time of closure to verify that the plant species and bulk seed rates are still appropriate. 2.2.2 Construction Construction of the final cover system will be typically performed by using scrapers to excavate, haul and place loose soil lifts to be compacted for the infiltration layer. A soil compactor (typically CAT 825B or equivalent) will pi wide the compactive effort required to obtain the desired permeabilities for this layer. During construction of the infiltration layer, the cohesive soil material will be moisture conditioned as necessary with water provided by a water truck during the compaction process to assist in achieving the required permeability of 1 x 10-5 cm/sec or less. The erosion layer will be placed loosely over the infiltration layer with scrapers and then shaped with a motor grader. The erosion layer will then be fertilized, disced and planted with shallow-rooted native plant species. 2.2.3 Quality Control/Quality Assurance (QA/OC) An independent consultant will be contracted to provide QA/QC services during construction of the final cover. The consultant will monitor to ensure that construction of the cover and closure activities occur in accordance with the project specifications and the closure plan. This may include visual observation, field and laboratory testing, and survey measurements. Upon completion of construction activities, the consultant will provide aralo"c"ab.asIMRn 2-3 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan certification documentation signed by a licensed Colorado professional engineer showing that the final cover was constructed in accordance with the project specifications. 2.3 ROUTINE CLOSURE Routine closure activities will be performed by CWSL. Construction of the final cover system will occur commensurate with the progression of landfilling operations. As final design grades are reached in contiguous areas of approximately 15 to 20 acres, final cover will be completed and certified in accordance with the CWSL revised final grades and the Site Development Plan. By employing this "close as you go"process, approximately 15 acres of the 63 acre fill area will require final cover construction after site closure. Final closure activities will begin within 30 days of reaching the revised final design grades for the final portion of the site unless an extended time period has been granted by the CDH and Weld County. After the site is closed, no off-site waste will be accepted for disposal. However, any refuse generated on site as a result of construction activities will continue to be disposed in the landfill until final cover placement has been completed. Routine closure activities are the same as those listed in section 2.4 for premature closure, .:xcept that the material quantities are significantly less. 2.4 PREMATURE CLOSURE 2.4.1 Description Premature closure will occur if the site must be closed prior to meeting the Agreement closure conditions discussed 2.1.1. As required by the Regulations, for the purposes of cost, it is assumed that premature closure activities will be performed by a third party. As also specified in the Regulations, premature closure is considered to occur at a time when the cost is greatest to close the largest area requiring closure. For CWSL, the cost is greatest if the site were to close in the current phase of operations. Intermediate cover has been placed in some locations, however in accordance with the Site Development Plan, final cover has not yet been placed. Approximately 63 acres of intermediate covered areas have a minimal slope (2%) and would require backfilling of approximately 93,200 cy to achieve ana 100/CI'tio.n_cnMtn 2-4 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan a minimum 5% slope prior to placement of final cover. The location of this 63 acre premature closure area is illustrated in Figure 5. No off-site waste will be accepted for disposal after the site has been prematurely closed. However, any refuse generated on site as a result of construction activities will continue to be disposed in the landfill until final cover placement has been completed. The residence located onsite will remain inplace after closure. In addition, another existing building and temporary sheds utilized during closure/post-closure will remain. This building and shed will be removed when they are no longer reasonable needed for closure/post-closure or remedial activities. All other buildings on the site shall be removed within six months of final closure of the landfill. 2.4.2 Premature Closure Activities If premature closure is required by the Regulations, the following tasks may be performed: 1. Regulatory Agency Notification - Prior to closure of any landfill phase, submit notification of the intent to close to the CDH and Weld County and place copy of the notice in the operating record. 2. Public Notification - 60 days in advance of closure date, place signs at entrance to the site notifying the general public of the closure date. 3. Backfill of Intermediate Grades - Prior to placement of final cover, some intermediate grade areas will require the placement of backfill in order to achieve a minimum 5% slope. The backfill will consist of soils from CWSL property, an alternate source or additional refuse as approved by the Colorado Department of Health and Weld County. It is estimated that approximately 93,200 bcy of additional fill material, over and above the final cover volume, will be required to achieve a minimum 5% slope. 4. Infiltration Layer Placement - After backfilling to create a sufficient slope for proper drainage, compacted soil cover will be then be placed over the entire 63 acre area. Although some portions of the 63 acre area may be covered by intermediate cover, it is assumed that even these areas will require the full 1.5 ft depth of compacted soil. Intermediate cover may be removed prior to placement of final cover. Approximately 152,500 of material is estimated to be required for the infiltration layer based on the area to be covered. The soil will be available from CWSL property or alternate sources and will be placed in accordance with the site QA/QC plan. 87101.lomCwrzD.a WRH 2-5 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan 5. Erosion Layer Placement - A minimum of 6 inches of soil amounting to approximately 51,000 bcy will be placed loosely over the 63 acre protective soil cover. This soil will be available from CWSL property or alternate sources. 6. Vegetation - The entire 63 acre area will be seeded with shallow-rooted native plant species in accordance with SCS recommendations. Fertilizer and mulch will be used as needed to foster vegetation growth. 7. Completion of Closure - Closure activities will be completed within 180 days following closure. A request for an extension may be submitted to Colorado Department of Health and Weld County if operational factors dictate that additional time is required for proper closure however, in no event shall activities necessary for the installation of final cover cap and drainage controls and initiation of vegetation extend beyond June 30, 1998. 8. Certification/Documentation - Closure certification for premature closure will be performed by an independent third party firm. The placement of the infiltration layer, erosion layer, and vegetation shall be monitored by the QA/QC consultant. Field and laboratory testing will be used for QA/QC documentation. Upon completion of construction, a report will be prepared by a Colorado registered professional engineer certifying that closure was conducted in accordance with the provisions of the project specifications and this plan. The report will be submitted to the CDH and Weld County for approval as well as placed in the operating record. To complete closure a note will be made on the title or deed to the land which notifies prospective buyers that the land was used as a landfill and that there are certain land use restrictions. A copy of the notation will be submitted to the CDH and Weld County and a copy will also be placed in the operating record. 9. Security - During closure activities and after closure, public disposal will be prohibited. Signs will be posted warning against unauthorized entry or waste disposal. The existing fence will be maintained and the front gate will be kept locked when not in use. 2.5 PREMATURE CLOSURE SCHEDULE The schedule for completion of premature closure activities is extremely weather dependent as compacted clay can not be optimally placed during excessively cold or rainy weather. As shown on the timeline provided as Figure 6, premature closure activities should require a minimum of six months based on good weather conditions and a 5 day work week. If it is not practicably feasible to complete construction within six months (180 days), an extension will be requested from Colorado Department of Health and Weld County to ensure that a reasonable time period is allowed to perform closure activities as described in this plan. 87mtJGwcwn aa&wSH 2-6 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan 3.0 POST-CLOSURE PLAN 3.1 INTRODUCTION 3.1.1 Description Following closure of the site, post-closure care will begin and continue for a period of 30 years unless, during the life of the facility or the post-closure period, a demonstration is made to the CDH and Weld County which shows that a reduced time period is sufficient to protect human health and the environment. If the post-closure period is reduced, this plan will be updated accordingly. This plan will be reviewed and updated as needed on an annual basis. 3.1.2 End Use Upon closure of the site, the facility will return to agricultural use, as it is zoned. This end use, agriculture, should have minimal impact on the final cover, and the use should not interfere with post-closure monitoring. 3.1.3 Regulatory Requirements This post-closure plan is prepared for CWSL in accordance with Section 2.6.1 of the Regulations and will be placed in the operating record. Sections 2.5,2.6, and 3.6 of the Regulations list a number of actions required during post-closure. These requirements have been incorporated in the following list of post-closure activities. Post-Closure Plan 1. Prepare a written post-closure plan for approval by CDH and Weld County which includes the provisions to prevent or minimize nuisance conditions, maintain the final cover, monitor groundwater, monitor landfill gas, and maintain and monitor the corrective action remedy. 2. The post-closure plan shall include a description of the planned end use for CWSL and the name and address of a contact person who is responsible for the facility. 3. Maintain a copy of the post-closure plan in the site's operating record. e7m1'loa/cWELD.CLswl 3-1 October 1993 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan Post-Closure Activities 1. The post-closure period shall be 30 years at a minimum unless a demonstration is made to the CDH and Weld County that a shorter time period is sufficient to protect human health and the environment. 2. Permanent surface water management structures remaining after closure shall be designed to manage run-on and run-off from the 100 year storm event. 3. Enact provisions to prevent water pollution at the point of compliance after closure. 4. Enact provisions to prevent nuisance conditions at or beyond the site boundary after closure. 5. Post-closure care and maintenance shall be conducted in accordance with the approved plan. 6. At the completion of the post-closure care period, a certification signed by a Colorado registered professional engineer or an approval by the CDH and Weld County must be placed in the operating record verifying that post-closure has been completed in accordance with the post-closure plan. 3.2 POST-CLOSURE ACTIVITIES During the post-closure period, a facility manager will be named and a phone number and address for the manager will be incorporated into this plan. The manager currently responsible for the facility is: Mr. William J. Hedberg, Division Vice President Central Weld Sanitary Landfill 6037 77th Ave Greeley, Colorado 80634 (303) 330-2641 The following post-closure activities provide for inspection, maintenance, and monitoring of the design features of the facility during the post-closure period: 1. Inspection - An inspection of the entire site will be conducted annually. The inspector will assess the conditions of the site and recommend corrective actions for any items 872511IXVCWIID.CLWIt I 3-2 October 1993 9410.21 Central Weld Sanitary Landfill Closure/Post-Closure Plan needing attention. Items to be inspected are further described in the following line items and include nuisance conditions, final cover, groundwater monitoring points, gas monitoring points, and surface water management system. 2. Prevent Nuisance Conditions -The placement of final cover provides a barrier between the refuse and the environment. Construction of the final cover in substantial conformance with project specifications should prevent disease vectors, deter birds, minimize odors, reduce blowing litter, and minimize air and water pollution as direct contact with refuse is prevented. Inspections and continued maintenance of the final cover system will ensure the integrity of the final cover so nuisance conditions are prevented throughout the post-closure period. The potential for on-site litter, traffic congestion, and noise pollution will be eliminated once closure of CWSL is complete as refuse will no longer be accepted for disposal and heavy equipment will no longer be operating. 3. Final Cover System - Due to differential settlement, subsidence, or erosion, repairs to the final cover may be necessary to maintain the integrity of the cover system. The condition of the final cover will be assessed during the inspections described above. Any areas where ponding occurs or significant erosion cuts are present will be repaired to maintain the integrity of the cap. Soil for the repairs will likely come from stockpiles or excavations located on CWSL property. The maintenance of the final cover may involve repair of the infiltration layer, the erosion layer, and vegetation. Since differential settlement decreases over time and erosion is reduced over time as vegetation is established, it is assumed that the need for final cover repairs will reduce over time. Under routine closure, the majority of the site will have final cover in place and only an area of approximately 15 acres will require final cover placement. The amount of final cover requiring repair under routine closure is estimated to be 3% of 15 acres. However, to calculate the more costly estimate for post-closure, the area requiring final cover repair for premature closure will serve as the basis for post-closure final cover repair. As a result, it is estimated for the erosion and protective layer that 3% of the 63 acre final covered area, or about 2 acres will need repair each year for the first five years of post-closure. It is assumed that this acreage will further decrease over time such that 1 acre will require repair for post-closure years 6 - 10, 0.5 acres will require repair for years 11 - 15, and 0.25 acres will require repair annually for years 16 - 30. 4. Groundwater Monitoring - The groundwater monitoring system will be monitored in accordance with the GWMP. Additional monitoring requirements may be required by Weld County after initial data is collected from the three recently installed wells. Depending on the monitoring well analytical data obtained during the site operating period, the number of wells and monitoring frequency may be reduced during the post- closure period with concurrence of the CDH in consultation with Weld County. For this plan, it is estimated that the wells will be monitored semi-annually for post-closure years 1-5 and annually thereafter. Samples will be analyzed for the Colorado Appendix I arew.,avcwna.as, ,, 3-3 October 1993 946121 Central Weld Sanitary Landfill Closure/Post-Closure Plan constituents listed in Appendix A of this plan. The results of all analysis will be placed in the site's operating record. Monitoring results will be reviewed and a statistical evaluation performed comparing each event's results to established background levels. Monitoring will continue during the post closure period and if a statistical significant increase over background levels are exceeded, confirmation sampling and if necessary corrective action monitoring will be performed in accordance with the GWMP. In addition to sampling, it is estimated that one well of the pumping system will require repair each year and a new pump installed each five years. The integrity of the monitoring system will be inspected during the monitoring events. Any required repairs will be noted and corrected. 5. Corrective Measure Monitoring - Corrective action monitoring of select wells and parameters approved by CDH and Weld County Department of Health must continue until the concentrations of constituents do not exceed the ground water protection standards for a period of three years. Upon completion of the remedy, a qualified ground water scientist will certify that completion of the remedy is in compliance with Appendix B of the Regulations. A report will be submitted to the CDH and Weld County and placed in the operating record. The CDH after consultation with Weld County shall provide a determination that the corrective measure has met the requirement of Appendix B of the Regulations. CWSL is currently conducting a corrective measure pilot scale study and will comply with the above provisions of Appendix B of the Regulations. 6. Gas Monitoring - The CWSL gas monitoring program consists of 21 permanent gas probe locations which will be monitored in accordance with the Site LGMP. Depending on the gas monitoring data obtained during the site operating period, the number of monitoring points, locations and sampling frequency may be reduced during the post- closure care period with concurrence of the CDH and Weld County. For this plan, it is estimated that 21 probes will be monitored quarterly for post-closure years 1-5 and annually thereafter. Results from each gas monitoring event will be placed in the site's operating record. If monitoring results indicate that methane gas is present above the permissible regulatory limits, remedial actions will be performed, if necessary, in accordance with the LGMP. 7. Surface Water Management System Maintenance - Surface water monitoring of the underdrain and french drain outlets is required at CWSL and will be included in post- closure monitoring. Maintenance of the surface water management system may be required during the post-closure period. This maintenance may consist of regrading or desilting channels and the stormwater pond. 8. Waste Disposal - Refuse will not be accepted from off-site during the post-closure period. However, if during post-closure repairs, previously placed refuse is excavated for construction activities, the refuse will be placed within the permitted fill area and final cover will be replaced. 8TXlA10YcwnnD.as,a1! 3-4 October 1995 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan FIGURES enol')o6TWELD.CLVAmN October 1993 9,10 121. Yp11N \ tem •Y • 1 qtr -1 11 ,:- � ,y *•-11,r*iitent lit40,-I d . AS), A )., 1 ........" .7 I, t- a ren �mnat= �itta�a�� - 14 '' ."r. ` �• -miT,-‘,}.___ wici.. ..,.. ..s...ndiii.:Mili_ i it-7, yiilregt .ti -ii,- J ° l m F ,• ' IPn \ i op 'Go leta,Mta, 0i Co Con M �•4 !ENS.L''• BirMiNllt � �� ► 1 Ea t l ►�#6 1100 ��,` ! lai\\214:7- _ • • 1 alit I :31 Eiiikeigilli'atm.- Wig:4„,,,„ j t....--ti..'SIM c �"'. 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' Z. i a `� u= e to E CAS F8 01 a it a 940121 Central Weld Sanitary Landfill Closure/Post-Closure Plan APPENDIX A APPENDIX I GROUND WATER MONITORING CONSTITUENTS FOR DETECTION MONITORING APPENDIX II GROUND WATERMONITORING CONSTITUENTS FOR ASSESSMENT MONITORING ermAma/cn.tatt October 1993 940121 • APPENDIX I FOR DETECTION MONITORING APPENDIX IA GENERAL GROUND WATER QUALITY INDICATOR PARAMETERS CATIONS MAGNESIUM SODIUM POTASSIUM CALCIUM ANIONS CARBONATE BICARBONATE CHLORIDE SULFATE NITRITE NITRATE FIELD PARAMETERS PH SPECIFIC CONDUCTIVITY TEMPERATURE TOTAL ORGANIC CARBON APPENDIX IB COMMON NAME CAS NUMBER INORGANIC CONSTITUENTS (1) ANTIMONY(TOTAL) (2) ARSENIC(TOTAL) (3) BARIUM(TOTAL) (4) BERYLLIUM(TOTAL) (5) CADMIUM(TOTAL) (TOTAL) (6) CHROMIUM (7) COBALT (TOTAL) (8) COPPER (TOTAL) (9) LEAD (TOTAL) (10) NICKEL (TOTAL) (11) SELENIUM (TOTAL) (12) SILVER (TOTAL) (13) THALLIUM (TOTAL) (14) VANADIUM (TOTAL) (15) ZINC (TOTAL) ORGANIC CONSTITUENTS: -- (16) ACETONE 67-64-1 (17) ACRYLONITRILE 107-13-1 (18) BENZENE 71-43-2 JUNE 30, 1993 (EFFECTIVE DATE OCTOBER 9, 1993) 147 946121 (19) BROMOCHLOROMETHANE 7/ 7-5 (20' BROMOD I CHLOROMETHANE 7t '-4 (2' BROMOFORM; TRIBROMOMETHANE 75-25-2 75-15-0 (� i CARBON DISULFIDE 56-23-5 (23) CARBON TETRACHLORIDE 56-23--7 (24) CHLOROBENZENE 15809-3 (25) CHLOROETHANE; ETHYL CHLORIDE 75-60-3 (26) CHLOROFORM; TRICHLOROMETHANE (27) DIBROMOCHLOROMETHANE; CHLORODIB2RR NE OMOOMKTHA -48-1 (28) 1, 2-DI BROMO-3-CHLOROPROPANE; DBCP 96-12-8 (29) 1, 2-DIBROMOETHANE; ETHYLENE DO DE EDB 106-93-4 (30) O-DICHLOROBENZ ENE; 1,2-DICHLOROBENZENE 95-50-1 (31) P-DICHLOROBENZ ENE; 1,4-DICHLOROBENZENE 106-46-7 -' (32) TRANS-I,4-DI CHLORO-2-BUTENE. 110-57-6 (33) 1, 1-DICHLOROETHAWE; ETHYLIDENE CHLORIDE 75-34-3 (34) 1, 2-D I CHLOROETHANE; ETHYLENE DICHLORIDE/07-06-2 (35) 1, 1-DICHLOROETHYLENE; 1, 1-DICHLOROETHENE5-35-4 VINYLIDEN CHLORIDE (36) CIS-1,2-DI CHLOROETHYLENE; CIS-1,2-DICHLQEHEE 156-59-2 ( 3 7 ) TRANS - 1 , 2 - DICHLORO15THY ENE ; 'MAN (38) 1, 2-DI CHLOROPROPANE; PROPYLENE 78-87-5DICHLORIDE (39) CIS-1, 3-DICHLOROPROPENE 10061-01-5 (40) TRANS-1,.3-DICHLOROPROPENE 10061-02-6 (41) ETHYLBENZENE 100-41-4 (42) 2-HEXANONE; METHYL BUTYL KETONE 59187896 (43) METHYL BROMIDE; BROMOMETHANE 79 (44) METHYL CHLORIDE; CHLOROMETHANE 74-87-3 (45) METHYLENE BROMIDE; DIBROMOMETHANE 74-95-3 (46) METHYLENE CHLORIDE; DICHLOROMETHANE 75-09-2 (47) METHYL ETHYL KETONE; MEK; 2-BUTANONE 78-93-3 (48) METHYL IODIDE; IODOMETHANE 74-88-4 (49' 4-METHYL-2-PENTANONE; METHYL I SOIUTYL KETONE 108-10-1 (50) STYRENE 100-42-5 (51) 1, 1, 1,2-TETRACHLOROETHANE 630-20-6 (52) ' 1, 1,2,2-TETRACHLOROETHANE 79-34-5 ( 53 ) TETRACHLOROETHYLENE ; TETRACHLOROETHENE PERCHLOROETHYLENE 127-18-4 (54) TOLUENE 108-88-3 (55) 1, 1, 1-TRICHLOROETHANE; METHYLCHLOROFORM 71-55-6 (56) 1, 1,2-TRICHLOROETHENE 79-00-5 (57) TRICHLOROETHYLENE; TRICHLOROETHENE 79-01-6 _ (58) TRICHLOROFLUOROMETHANE; CFC-11 75-69-4 (59) 1,2,3-TRICHLOROPROPANE 96-18-4 (60) VINYL ACETATE 108-05-4 JUNE 30, 1993 (EFFECTIVE DATE OCTOBER 9, 1993) 148 9{,6 '^1 (61) VINYL CHLORIDE 75-01-4 (62) XYLENES 1330-20-7 This list contains 47 volatile organics for which possible analytical procedures provided in EPA report SW-846 "Test Methods for Evaluating Solid Waste, " third edition, November 1986, as revised December 1987, includes method 8260; and 15 metals for which SW-846 provides either method 6010 or a method from the 7000 series of methods. Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals. Cas number = Chemical Abstracts Service registry number. • JUNE 30, 1993 (EFFECTIVE DATE OCTOBER 9, 1993) 149 940121 APPENDIX II FOR ASSESSMENT MONITORING SUGGESTED COMMON NAME(2) CAS RN(3) CHEMICAL ABSTRACTS S (6) ERVICE INDEX METHODS PQL (MG/L) NAME(4) (5) ACENAPHTHrNE 83-32-9 ACENAPHTHYLENE, 1.2-DIHYDRO- 8100 20 8270 1 ACENAPHTHYLENE 208-96-8 ACENAPHTHYLENE 8100 20 _ 8270 1 ACETONE 67-64-1 2-PROPANONE 8260 10 ACETONITRILE; METHYL CYANIDE 75-05-8 ACETONITRILE 8015 10 ACETOPHENONE 98-86-2 ETHANONE. 1-PHENYL- 8270 1 2-ACETYLAMINOFLUORENE; 2-AAF 53-96-3 ACETAMIDE, N-9H-FLUOREN-2-YL- 8270 2 ACROLEIN 107-02-B 2-PROPENAL 8030 8260 10 ACRYLONITRILE 107-13-1 2-PROPENENITRILE 8030 8260 20 ALDRIN 309-00-2 1,4:5,8-DIMETHANONAPHTHALENE, 1.2. 8080 .05 3,4,10.10-HEXACHLORO-1,4,4A.5,8. 8270 1 8A-HEXAHYDRO- (1.4,4A,5.8,8A) ALLYL CHLORIDE 107-05-1 1-PROPENE, 3-CHLORO- 8010 8260 1 4-AMINOBIPHENYL 92-67-1 [1,1(1)-BIPHENYL]-4-MINE 8270 2 ANTHRACENE -420:12-7 ANTNRACENE 8100 20 _ 8270 1 ANTIMONY (TOTAL) ANTIMONY 6010 30 7040 200 7041 3 ARSENIC (TOTAL) ARSENIC 6010 50 7060 1 7061 2 BARIUM (TOTAL) BARIUM 6010 2 7080 100 BENZENE 71-43-2 BENZENE 8020 8021 .1 _ 8260 BENZO[A]ANTHRACENE; BENZANTHRACENE 56-55-3 BENZ[A]MTHRACENE 8100 20 8270 1 BENZO[B]FLUORAMTHENE 205-99-2 BENZ[E]ACEPHENANTHRYLENE 8100 20 8270 1 BENZO(K)FLUORANTHENE 207-08-9 BENZO(K)FLUORANTHENE 8100 20 8270 1 BEMZO[GHI]PERYLENE 191-24-2 BENZO[GHI]PERYLENE - 8100 20 8270 1 BENZO[A]PYRENE 50-32-8 BENZO[A]PYRENE 8100 20 8270 1 BENZYL ALCOHOL 100-51-6 BENZENEMETHANOL 8270 2 BERYLLIUM (TOTAL) BERYLLIUM 6010 7090 5 _ 7091 ALPHA-BHC 319-84-6 CYCLOHEXANE, 1,2.3.4,5,6- 0080 .05 HEXACHLORO-. (1.2.3.4.5.6)- 8270 1 BETA-BHC 319-85-7 CYCLOHEXANE. 12,3.4,5.6- 8080 .05 MEXACHLORO-, (1,2.3,4,5,6)- 8270 2 DELTA-BHC 319-86-8 CYCLOHEXANE, 1.2.3.4,5,6- 8080 .1 MEXACHLORO-, (1,2,3,4.5.6)- 8270 2 GAMMA-BHC LINDANE 58-89-9 CYCLOHEXANE, 1,2.3.4.5.6- 8080 .05 HEXACHLORO-. (1,2.3.4,5,6)- 8270 2 BIS(2-CHLOROETHOXY)METHANE 111-91-1 ETHANE. 1.1(1)-(METHYLENEBIS(OXY)) 8110 B15[2-CHL01)O 8270 1 BIS(2-CHLOROETHYL) ETHER; 111-44-4 ETHANE, 1.1(1)-OXYBIS(2-CHLORO- .. 8110 • DICHLOROETHYL ETHER. 8270 82.2(2)-DICHLOROOIISOPROHYL) ETHER; 108-60-1 PROPANE. 2.2(I)-OXYBIS[1-CHLORO- 8110 1 SEECNOTEO7I150PROPYL ETHER; 8270 1 DCIP,S(2- SEE NOTE J. B IS(2-ETMYLNE%YL) PHTHALATE 11]-81-7 1(2-ETHYLHEXYL) ESTE LIC ACID. BiS 8060 2 (2-ETHYLHEXYL) ESTER BCHLOROBR OMIETKAN: 74-97-5 METXANE, BROMOCHLORO- 8021 .1 OMLODICHLOI METHAN 88020 260 BDI8RD OCHLORMlETHAN 75-27-4 METHANE, BROMODICMLORO- 8021 .2 DIBNCMOCHLOROMETMME. 8010 BROFgFORM; TRIBROIIOIIETHANE 75-25-2 METHANE, TRIBROKq- 8010 8260 1 8260 4-BRp43PHENYI PHENYL ETHER 101-55-3 BENZENE. 1-BIIOlq-4-PNENOXY- 8110 2 8270 1 BUTYL BENZYL PHTHALATE; BENZYL 85-68-7 1 BUTYL. PHENDIC TMYL ESC ACID. 8060 BUTYL PHTHALATE. BUTYL PMENYLMETHYL ESTER 8270 1 CADMIUM (TOTAL) CADMIUM 6010 40 7130 50 1 7131 CARBON DISULFIDE 75-15-0 CARBON DISULFIDE 0260 100 CARBON TETRACHLORIDE 56-23-S METHANE, TETMCNLORO- 8010 1 8021 0.1 8080 10 _ . CHLORDANE SEE NOTE 8 4.78-OCTACHLORO-2.5..3. 4.7,7.-.6,7• 8080 0.1 HEXAHYDRO-8.8 -2,s.lA.4,7.JA- 8270 50 MEXMMIIHE P{HIOROMILINE 106-47-0 BEN2ENAMINE, t-CNL0110- 8270 20 JUNE 30, 1993 (EFFECTIVE DATE OCTOBER 9, 1993) 150 • 916121 Central Weld Sanitary Landfill Closure/Post-Closure Plan APPENDIX B APPROVED SPF IAL WASTE STREAMS AT CENTRAL WELD SANITARY LANDFILL 87204.t00,c'%ITLD tt October 1993 940121 EXHIBIT F Central Weld Sanitary Landfill Special Waste Acceptance Summary Special Wastes received for disposal at the Central Weld Sanitary Landfill (CWSL) will be received and managed in accordance with the previously submitted Access Control Plan for Special Waste Identification, dated March 1993 . The plan requires CWSL implement and document the results of a special waste identification program that identifies special wastes produced by it's commercial and industrial customers. Identification may be made by reviewing commercial and industrial processes, written survey, phone questionnaires or other methods which will accurately identify regulated wastes. Once the special waste customer is identified, the customer will provide information about the waste and sign the "Generator's Waste Profile Sheet" (GWPS) . The GWPS and associated information (analytical data, Material Data Sheets (MSDS) , etc. ) will be reviewed by a technical manager and site manager to ensure the generator has adequately characterized the waste for detecting and preventing the disposal of regulated hazardous waste, regulated quantities of Polychlorinated Biphenyl (PCB) wastes, or radioactive waste at CWSL. The information must be adequate to assign conditions/limitations on properly managing the waste and ensuring the facility is permitted to accept the waste. CWSL will notify the customer in writing of all conditions/limitations that apply to managing the waste and the customer will be required to comply with all conditions/limitations. Following the effective date of a County Resolution adopted in conformance with the Agreement to which this Exhibit is attached, CWSL will limit the receipt and handling of special waste to the following specified waste streams and methods, which have been reviewed with the Weld County Department of Health. Customers needing to dispose of the following materials will be required to follow the above procedure for submittal of the GWPS. A copy of the GWPS and corresponding technical data will be forwarded to the Weld County Department of Health (WCDH) for review and concurrence. WCDH will submit to CWSL a letter of concurrence for each special waste received at CWSL. Description of Waste and Management Method and Procedures A) Contaminated Soils: 1) Soils contaminated with oil, or any other petroleum product, other than gasoline or diesel fuel is not accepted at CWSL. Contaminated soils accepted at the facility will meet 94 1 EXHIBIT F Page 2 the following standards: A) Total Petroleum Hydrocarbons (TPH) of less than 300 ppm. B) Pass a T.C.L.P. test for lead C) Pass an EPA paint filter test (EPA method 9095) D) Written concurrence from WCDH Material will be stockpiled until spread over a large area of the working face as daily cover. 2) Soils contaminated with non-hazardous materials other than petroleum products will be evaluated on a case by case basis with concurrence from the WCDH. Contaminated soils accepted at CWSL will meet the following standards: A) Pass an EPA paint filter test B) Pass additional T.C.L.P. testing as appropriate to adequately characterize the waste as non-i 'tzardous. C) Written concurrence from WCDH Material will be stockpiled until spread over a large area of the working face as daily cover. B) Off-specification, outdated commercial products: 1) Canned and or pre-packaged foods in original containers including but not limited to canned vegetables, fruits, soups, milk, beverages etc. 2) Waste produced by the processing of fruit, animals, vegetables or grains. Animals received from these processes will not be from research facilities or contain pathogens (diseased) . Off-specification, outdated commercial products will be managed as follows: A) Immediate burial may be needed to meet customer or operational need B) Written concurrence from WCDH C) Drained/Crushed bulk waste oil filters from commercial sources 3�i(31.2,1 EXHIBIT F Page 3 (including but not limited to Grease Monkeys' , Jiffy Lubes, etc. ) Filters will be managed by landfill as follows: A) Filters must be either drained and/or crushed prior to being received for disposal B) Written concurrence from WCDH In addition, special wastes acceptable for disposal will include any non-hazardous solid waste received in quantities which are incidental to the load or exempt from regulation. 9410121 Central Weld Sanitary Landfill Closure/Post-Closure Plan APPENDIX C SOIL CONSERVATION SERVICE RECOMMENDATIONS FOR PLANT SPECIES AND BULK SEEDING RATES- WELD COUNTY 87204.100/CWELD.CUMR1i October 1993 94€0 121 AGRICULTURE Greeley Field Office ( 3u3 ) 43b-60-1115- - August 7 , 1989 Kevin J . Taylor _ Project Geologist Industrial Compliance Inc . 1746 Cole Blvd . , Bldg . 21 #300 Golden , CO 80401 SUBJECT : IC Project No . 2-2250 - The following comments and attachments are in answer to your request for soil site information , seeding recommendations for a sanitary landfill in SW 1 !4 of Section 7-7N-R66W in Weld County , Colorado . 1st information provided is taken from the "Soil Survey of Weld County , olorado Southern Part " . USDA Soil Conservation Service . The site is made up particularly of 2 soil map units , ( 47 ) Olney Fine Sandy Loam 1 -3% slopes , -_ and ( 48 ) Olney Fine Sandy Loam 3-5% slopes . As you will note copy of table 7 . Sanitary Facilities indicates slight — restructions for use as an Area sanitary landfill and good condition are available for daily cover for landfill . Revegetation : Included are copies of Standards for specifications for Mulching , Cover Crop and Rangeland seeding , along with Critical Area Planting for possible use on steep slopes in excess of 4 : 1 slopes . -- The soils are considered to be a Sandy Plains range site which will be best suited seeded to Sideoats grama , Prairie Sandreed , Switchgrass , Thickspike Wheatgrass . The enclosed seeding recommendation will provide you with variety , species , pounds of seed needed for seeding . If you require any additional information , please contact me . - Sincerely , Ronald D . Miller District Conservationist •eeley Field Office 941(11.21.. U.S. Department of Agriculture Page 1 Soil Conservation Service 0R/02/89 SOIL DESCRIPTION REPORT SURVEY AREA - WELD COUNTY, SOUTHERN PART, COLORADO Map Unit Symbol Description 47 OLNEY FINE SANDY LOAM, 1 TO 2 PERCENT SLOPES The Olney sail is a deep, we I I drained soi l . It is formed can smooth plains in mixed outwash deposits . The surface is a fine sandy loam. The subsco i I is sandy clay loam. The underlying material is a calcareous fine sandy loam. The so i l s have moderate permeab i l i ty. Their ava i t ab l e water holdin3 capacity is moderate . Roots penetrate to 60 inches or more . Runoff is slow and the erosion hazard due to wind is severe . 4;_; OLNEY FINE SANDY LOAM , 3 T!0 5 PERCENT SLOPES The Olney so i 1 is a deep , we l I drained so i I . It is formed on smooth plains in mixed outwash deposits . The surface is a fine sandy loam. The subsco i l is sandy clay loam. The underlying material is a calcareous fine sandy loam. The soils have moderate permeability. Their available water holding capacity is moderate . Roots penetrate to 60 inches or more . Runoff is slow and the erosion, hazard due to wind is severe . Category Codes : s': i 9` ,0121 — rm CO-ECS-5 ( Computer Draft ) PRODUCER: Industrial Compliance 1 2ASS SEEDING RATE CALCULATIONS PLANNER: Miller DATE: 8/3/89 __ aRT I : SEEDING PLANNED CONTRACT OR AGREEMENT #: IC Proj . 2-2250 Feld No. : MLRA: 067 Acres: 1 . 0 Irrigated: - CIN No. : Dryland: x ract. No. : 550 Range Site: Sandy Plains 'act. Name: Rangeland Seeding ?edbed Prep. : Seeding Operation : Method-- intensive cultivation Method- Dates:NOV. 1 to April 30 pr. Dates- as soon as pratical Drill- iean-tilled- yes Interseed- irm seedbed- ., Broadcast- Stubble-sorghum 8-10 lbs. /Ac. Drill Type- Grass Interseed-or 110-120 day milo at Drill Spacing-7-12 in. Other-80000-100000 plants/ac. Planting Depth-1/2-1 in. :rtilizer : Weed Control : Pounds actual per acre (available) Dates:May-June Nitrogen : Use soil test Mowing-* 1-2 operations Phosphate: use soil test Chemical-* use labeled herbicide Potassium: use soil test Type and Amount- read label for specific info. c.!1ch: Kind- Prairie Hay Amount- 4000 ( lbs/acre) o'.0 applied- evenly over the surface ow anchored--crimped nchor depth-4 in. into soil ( 7 ) - =EDING PLANNED: (3) (4) (5 ) (6) TOTAL PLS ( 1 ) (2) PLS/ACRE 'L OF PLS RATE PLANNED REQUIRED VARIETY SPECIES 100% MIXTURE PER ACRE ACRES FOR SEEDING Goshen Prairie Sandreed 3. 5 30 1 .05 1 . 0 1 . 1 aughn Sideoats grama 4. 5 20 0.90 0. 9 __ renville Switchgrass 2.5 30 0. 75 0. 8 ritana Thickspike Whtgras 5. 5 20 1 . 10 1 . 1 100 3. 80 3. 8 EMARKS: Mulching requirements are shown if critical area seeding is needed. eeding ratesare based on one acre. Multiply by number acres to be seeded to __ et total seed needed. 9i1U1.21. EROSION POTENTIAL CALCULATIONS The estimates of potential erosion which could occur from the landfill sides and top were calculated using the Universal Soil Loss Equation (USLE) . This equation has been developed by the United States Department of Agriculture Soil Conservation Service (SCS) based on observations, tests, and measurements over many years on many different types of soils and land uses. The USLE uses factors including climate, land slope, length of slopes, land use and land management to estimate potential erosion. The basic force for erosion is provided by water flowing over or through a soil. Water flow can result from precipitation or snow melt; erosion from a given surface increases with increasing quantity and velocity of water flow. Both the quantity and velocity of water flow over a land surface can be affected by the slope of the land, the length of the slope, the vegetation or other cover over the soil, and variations in the cover over the soil. These factors are included in the USLE as shown below. USLE - A = R(K) (LS) (C) (P) where A = Soil Loss in Tons per Acre per Year R = Precipitation or Snowmelt Index K = Erosional Index for a specific soil LS = Land-Slope Factor C = Crop Factor P = Land Management Factor The SCS has developed numbers for many of the areas, soils, and land uses and managements. The references at the end of this Appendix and Plate 8 (Final Proposed Topography) of this document were used to determine values for use in the USLE. The cited soil survey and Technical Note are specific to Colorado. The other two documents contain information on a number of states, including Colorado. Upon completion, the top of the proposed landfill will have an average slope of approximately four percent and slope lengths of approximately 350 feet; the sides of the landfill will have an average slope of 25 percent and slope lengths ranging from approximately 300 feet to approximately 850 feet. For the LS factor in the USLE, the lengths of the sides were determined as follows: The average length of the north side of the fill was measured from Plate 8 and found to be approximately 700 feet. The average length of the east side of the fill was measured to be approximately 650 feet. The average length of the southwest side of the fill was measured to be approximately 700 feet. The average length of the south side of the fill was measured to be approximately 800 feet. The average length of the west east side of the fill was measured to be approximately 850 feet. The average length of the north side of the fill was measured to be approximately 700 feet. At the corners, the length of the slope varies from the maximum length of a side to zero. The area was determined for each of the above described portions of the fill and the USLE was used to calculate the potential erosion from each area. A table, showing each of the areas and the factors used in the LISLE, is provided on the following page. Also provided on the following page are the average, individual , Tinimum and maximum calculated potential rates of erosion from the fill . As can be seen from the tables on the following page, the maximum calculated rate of erosion is approximately 0. 0099 feet per year, the minimum calculated rate of erosion is approximately 0 . 0003 feet per year, and the average calculated rate of erosion is approximately 0. 0066 feet per year. Calculation of Potential Erosion Rates For use in the USLE the value of "R" , 55, was taken from Reference 2 . This value was the most conservative value for R given in the cited references. The value for "K" , 0.24 , was taken from Reference 3 . The values for "K" for the horizons of this soil ranged from 0. 20 to 0. 24 , depending on the depth below the surface of the ground. Because this soil will be mixed when it is removed, the more conservative value was used. The values for "LS" were taken from Table 1 of Reference 1. Table 1 was developed using an equation provided in References 3 and 4 , and was simpler to use than the equations. Length and degrees of slopes not shown on the table were interpolated from given values. 94v - The value for C, 0. 07 , was taken from Table 4 of Reference 1. This value assumes approximately 50 percent of the ground surface will be covered with vegetation after the fill is reclaimed, and there will not be any tall grasses or bushes over significant portions of the reclaimed fill. The value for P, 1. 0, was the same in all references, and assumes land management practices such as terracing, strip planting, etc. , will not be used. With the above values, the LISLE reduced to A = 55 (0. 24) (LS) (0. 07) (1) = 0.924 (LS) Slope Length LS A Location (%) (feet) (T/a/Y) Top 4 325 0. 64 0 . 6 North Side, NW corner 25 300 12 11. 1 West Side NW corner 25 325 12 . 5 11. 6 West Side, SW corner Southwest Side, SW corner 25 350 13 12 . 0 Southwest Side, S central corner North Side, NE corner 25 400 14 12 . 9 East Side, NE corner 25 425 14 . 5 13 . 4 South Side, SE corner East Side, SE corner West Side 25 650 17 15 . 7 North Side and 25 700 18 16. 6 Southwest Side South Side 25 800 20 18 . 5 East Side 25 850 21 19 . 4 The table on the following page, showing erosion quantities and rates, was developed using the "A" value calculated in the above table. 940121 NOTICE Pursuant to the zoning laws of the State of Colorado and the Weld County Zoning Ordinance, a public hearing will be held in the Chambers of the Board of County Commissioners of Weld County, Colorado, Weld County Centennial Center, 915 10th Street, First Floor, Greeley, Colorado, at the time specified. All persons in any manner interested in the Closure/Post-Closure Plan are requested to attend and may be heard. Should the applicant or any interested party desire the presence of a court reporter to make a record of the proceedings, in addition to the taped record which will be kept during the hearing, the Clerk to the Board's Office shall be advised in writing of such action at least five days prior to the hearing. The cost of engaging a court reporter shall be borne by the requesting party. BE IT ALSO KNOWN that the text and maps so certified by the Weld County Planning Commission may be examined in the office of the Clerk to the Board of County Commissioners, located in the Weld County Centennial Center, 915 10th Street, Third Floor, Greeley, Colorado. DOCKET NO: 94-01 APPLICANT Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 DATE: January 5, 1994 TIME: 10:00 a.m. REQUEST: Closure/Post-Closure Plan for Central Weld/Greeley-Milliken Sanitary Landfill LEGAL DESCRIPTION: Part of the SE6 SWa of Section 32, Township 5 North, Range 66 West of the 6th P.M. , Weld County, Colorado BOARD OF COUNTY COMMISSIONERS WELD COUNTY, COLORADO BY: DONALD D. WARDEN WELD COUNTY CLERK TO THE BOARD BY: Shelly K. Miller Deputy Clerk to the Board DATED: October 13, 1993 PUBLISHED: December 23, 1993, in the Windsor Beacon AFFIDAVIT OF PUBLICATION STATE OF COLORADO Services Corporation, ss $037 77th Avenue, Pursuant to Ike zoning Greeley, Colorado COUNTY OF WELD laws of the State of 80836 Colorado and the Weld I, ITITH HANSEN, of said County of Weld, County Zoning DATE:January 5,1994 being duly Ordinance, .a public sworn, say that I am publisher of hearing will be held in TIME:10:00 a.m. the Chambers of the WINDSOR BEACON Board of County R E QUEST Comm nersissio of Weld Closure/Post-Closure County Colorado•Weld Plan for Central a weekly newspaper having a general circulation in said County Centennial Weld/Greeley-Milliken County and State, published in the town of WINDSOR, Center,915 10th Street, swam First Floor, Greeley, day Landfill in said County and State; and that the notice, of which. Colorado, at the time LEGAL DESCRIPTION: the annexed is a true copy, has been published in said speckled. All persons in part of the SE 1/4 of weekly for / _successive weeks, that the notice any manner interested Section 32,Township 5 was published in the regular and entire issue of every ry in the Closure/Post- North, Range 68 West Closure Plan arenumber of the paper during the period and time of requested to attend and of the 6th Weld coma/.Colorado publication, and in the newspaper proper and not in a may be heard. supplement, and that the first publication of said notice Should the',Pliant or BOARD OF COUNTY was in said paper bearing the date of the COMMISSIONERS, any interested party •� 7� desire the presence of a WELD LO � dt� ry RCOUNTY, J day of rilitecia./1-<4L Q, A.D., 19 iC3 and court reporter to make a - the lastpublication bearing the date of the record of the proceed�nga In addition BY: Donald D.Wards, Weld County Clerk to to the taped record the Board day of A.D., 19_ and which will be kept during that the said WINDSOR BEACON has been published the Mama,thOf Clakto BY: Shelly K. Miller, continuously and uninterruptedly for the period of 5 betheBoate's Mee shell Deputy Clerk to the p y be advised in writing of Bova{ consecutive weeks, in said County and State, prior to the such action at least five date of first publication of said notice, and the same is a days prior to the DATED: October 13, newspaper within the meaning of an Act to regulate hearing. The cost of 1rea engaging a court printing of legal notices an 'advertisements, approved reporter shall be bens PvSieher In the May 18, 1931,and all prior cts ar as in force. by the millaisibq Pent win er Nwen en BE IT ALSO KNOWN Dsssndte*ISIS' / that the text and meet L/!/„( i i\ so certified by the Mete c ' P LISHER County Planning Commission may be ,27,44- day examined Indb elks of Sub bed an sworn sworn to before me this t e Clerk to the Bordof of 19 93 County Commissioners, located in the Weld County Centennial ,L1i1,JL • /!l.(�yyt�1-I Center,91510th Street, NOTARY PUBLIC Third Floor,Greeley, Colorado. (((��1 ��/))) My commission expires i, y /77/ . DOCKET NO:94-01 / r APPLICANT: Waste 940121 CERTIFICATE OF MAILING The undersigned hereby certifies that a true and correct copy of the foregoing Notice of Hearing, Docket #94-01, was placed in the United States mail, postage prepaid, addressed �t7o�lthe following property owners. DATED this /76 6 day of /Qt&J7tt.�(kt , 1993. Deputy 4Y_work to the tt Board WASTE SERVICE, INC. HAROLD AND MADELINE DANIELS C/0 WASTE MANAGEMENT 23732 WELD COUNTY ROAD 27.5 P.O. BOX 122283 MILLIKEN, CO 80543 FORT WORTH, TX 76121 GREGORY J. HOBBS, JR. ELLA MARIE HAYES HOBBS, TROUT & RALEY, P.C. SUSANNE STEPHENS, ET AL ATTORNEYS AT LAW BOX 773 1775 SHERMAN STREET, SUITE 1300 SARATOGA, WY 82331 DENVER, CO 80203 G.D. MOSSBERG SENATOR HANK BROWN JANET LEA SHERROD-MOSSBERG 1100 TENTH STREET, ROOM 201 4603 83RD AVENUE GREELEY, CO 80631 GREELEY, CO 80634 SENATOR TOM NORTON ARTHUR P. GARCIA SENATE CHAMBERS 13998 WELD COUNTY ROAD 378 STATE CAPITOL BUILDING MILLIKEN, CO 80543 DENVER, CO 80203 HEIRS OF ANN SPOMER, ET AL CRAIG A. SMITH D.C. C/O LOUIS REIKERT, 1ST NATIONAL BANK SMITH CHIROPRACTIC OFFICES, P.C. P.O. BOX 1058 801 ELEVENTH AVENUE GREELEY, CO 80632 GREELEY, CO 80631 SAMUEL S. AND MYRTLE ANN TELEP DON HOFF 2315 54TH AVENUE ATTORNEY AT LAW GREELEY, CO 80634 1025 9TH AVENUE, SUITE #309 GREELEY, CO 80631 KEITH V. , MELODIE R. STEVEN D. , AND DOUGLAS L. KAMMERZELL WALKER MILLER 12314 HIGHWAY 60 ATTORNEY AT LAW MILLIKEN, CO 80543 822 7TH STREET GREELEY, CO 80631 ARTHUR P. ROY 1011 11TH AVENUE WASTE SERVICES CORPORATION GREELEY, CO 80631 C/O WASTE MANAGEMENT OF NORTHERN COLORADO WASTE MANAGEMENT DISPOSAL ATTN: WILLIAM HEDBERG SERVICES OF COLORADO, INC. 6037 77TH AVENUE 5660 GREENWOOD PLAZA BOULEVARD #400 GREELEY, CO 80634 ENGLEWOOD, CO 80111 WASTE SERVICES CORPORATION 40000 WELD COUNTY ROAD 25 AULT, CO 80610 940121 CERTIFICATE OF MAILING The undersigned hereby certifies that a true and correct copy of the foregoing Notice of Hearing, Docket #94-01, was placed in the United States mail, postage prepaid, addressed to the following property owners. /�� DATED this 0 / - day of tith-64-1 , 1993. 0n% X7n� Deputy Clerk the Board JANE CARLSON, ATTORNEY 1109 13TH STREET GREELEY, CO 80631 MICHAEL S. HAYES 8200 W. 49TH ST. GREELEY, CO 80634 CONGRESSMAN WAYNE ALLARD BANK ONE PLAZA, SUITE 350 GREELEY, CO 80631 WELD COUNTY P.O. BOX 758 GREELEY, CO 80632 940121 Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 - " -., A Waste Management Company 303/330-2641 November 18, 1993 - = Mr. Chuck Cunliffe, Director Department of Planning Services Weld County Administrative Offices 1400 North 17th Avenue Greeley, CO 80631 RE: CENTRAL WELD SANITARY LANDFILL - REVISED APPLICATION TO AMEND USE BY SPECIAL REVIEW PERMIT NO. 1012 Dear Mr. Cunliffe: Enclosed for your review and consideration are twenty-five copies of Waste Services' revised application to amend the existing Use by Special Review Permit No. 1012 to incorporate excavation and remediation activities on buffer property located adjacent to and near the Central Weld Sanitary Landfill. These copies are for your use and distribution to the appropriate Weld County departments and referral agencies. On April 1, 1993, Waste Services filed with Weld County an "Amendment Application of Special Use Permit No. 116" that requested approval of continued operation of the Landfill and of excavation and remedial activities on property located adjacent to the Landfill. On October 13, 1993, the County Commissioners adopted a Resolution in which it was specified that the Commissioners will act only on that part of the application regarding excavation and remedial activities proposed for the buffer property. To allow the Commissioners to best act on proposed activities in the buffer property pursuant to the Resolution, County staff requested that Waste Services submit a revised application covering only those proposed activities. This revised application covers only those proposed activities on the buffer property. The resolution required that Waste Services withdraw its application for an amendment to the Certificate of Designation for the Landfill, which was also filed with the County on April 1, 1993. Waste Services hereby withdraws that application for an amendment to the Certificate of Designation. Pursuant to the Resolution, Waste Services was required to submit a Closure/Post Closure Plan to the Commissioners for review and approval. That plan was submitted to the Commissioners on October 12, 1993. Pursuant to your request, we provided 25 additional copies to you recently for your use and distribution. It is our understanding that the Commissioners will be acting on the Closure Plan after they have received a recommendation from the Planning Commission. �1'�u & f]) CC: fictc �� lfL; PL 5 0A (A-) 940121 N 'fitter - Weld County Health Department \—/Page 2 November 18, 1993 We look forward to working with you and the other referral representatives through this process. Please contact me at 330-2641 if you need additional information or clarification. Sincerely, Bill Hedberg Division Vice President Landfill Operations BH/mmp Enclosure cc: Weld County Commissioners, individually, w/o enclosure Lee Morrison, Assistant County Attorney, w/ enclosure John Pickle, Department of Health, w/enclosure Glenn Mallory, Colorado Department of Health, w/o enclosure Samuel Telep, w/enclosure Michael Hayes, w/enclosure Jane Carlson, w/enclosure 940121 TTE OF COLORADO COLORADO DEPARTMENT OF HEALTH Dedicated to protecting and improving the health and_ of co environment of the people of Colorado s " . ' ^ r ,,;�4� * G I * * 4300 Cherry Creek Dr.S. Laboratory Building ! Denver,Colorado 80222-1530 4210 E.11th Avenue �'�"" Phone(303)692-2000 ` r896 Denver,Colorado 80220-3716—, - - (303)691-4700 - - — Roy Romer December 6, 1993 Governor Patricia A.Nolan,MD,MPH Alan Scheere Executive Director Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 RE: Closure Plan - Central Weld Sanitary Landfill (CWSL) Weld County Dear Mr. Scheere: The Hazardous Materials and Waste Management Division of the Colorado Department of Health as completed its review of the Closure/Post Closure Plan,(the Plan) for the CWSL,Weld County. The Plan was reviewed under the authority of the Solid Waste Disposal Sites and Facilities Act Title 30, Article 20, Part 1, CRS as amended and with the regulations promulgated thereunder 6 CCR-1007-2 (the Regulations). The Division has the following comments concerning the Plan: 1. Page 1-3, Item 1.2.6, The Plan indicates the current ground water monitoring program includes 15 monitoring wells. However, the Division's records show 18 ground water monitoring wells. Additionally,three monitoring wells were recently installed along the southern boundary of the buffer property. Based on the ground water quality data from these wells, the Division will determine sample frequency and constituents. 2. Page 2.2, Item #1, The proposed final cover is comprised a barrier layer with 18 inches of 1 x 10-5 cm/sec material and six inches of an erosion layer. In the Division's judgement the final cover shall include a rooting layer which would be protective of the barrier layer. The rooting layer would consist of 6 to 12 inches of loosely compacted material between the barrier layer and erosion layer, In addition,a demonstration shall be made which shows the proposed permeability(1X10-5 cm/sec) will result in less infiltration then the surrounding natural infiltration. 3. Page 2-3, Item #2.2.3, A Quality Assurance/Quality Control (QA/QC) plan must be submitted to the Division for review and approval, prior to commencement of final cover construction. For your reference, I've enclosed a copy of the Division's QA/QC guidance document for construction of soil liners and covers. 4. Page 3-2, Item 1, The Plan indicates post-closure site inspections will be conducted annually. The Division requires that during the first two years, inspections are preformed quarterly. This is to ensure vegetation is becoming established, subsidence and erosion of the final cover have not occurred, nuisance conditions have not developed and surface water control features are functioning as designed. 5. Page 3-3, Item #4, The Plan states, "... wells will be monitored semi-annually for post-closure years 1-5 and annually thereafter." The Division requires that quarterly monitoring be performed for the first two years. The effectiveness of ground water remediation efforts at this facility are currently inconclusive and no analytical data from three recently installed ground water wells has been received. Therefore, a decision on frequency of post-closure monitoring, after the initial eight quarters, will he determined upon review of that data. Sic fub 1-f E cc1 sec c, 65), �� a� OP «- sic, . Mr. Alan Scheere Closure Plan - Central Weld Landfill December 6, 1993 Page 2 6. Page 3-4, Item #7, Indicates surface water (underdrain and french drain outlets) will be monitored during the post-closure period. However, sampling frequency and parameters were not discussed. Please provide this information. 7. Page 3-4, Item #8, If previously placed refuse is excavated during post-closure repairs,the Division and county shall be notified in writing within 30 days of the occurrence. 8. Appendix A, Numerous pages of "Appendix II For Assessment Monitoring" are missing. Please include this information. 9. Appendix B, Exhibit F page 3, Terne nil filters shall he prohibited from disposal. Terne is an alloy of lead and tin which tends to cause the filters to fail TCLP for lead. 10. Appendix C,The seeding recommendations described in the Soil Conservation Services(SCS)letter dated August 7, 1989 are for 1 - 5% slopes. The final grade slopes at CWSL are designed to be typically between 5%and 10%. The Division requests that seeding and revegetation be reevaluated to reflect final grade conditions at CWSL. 11. Permanent surface water control structures shall be designed to control run-on and run-off from the 100 year, 24-hour storm event. Please provide this information. These conclude the Division's comments on the Plan. The Division will not will not provide a decision on the Plan until these issues are addressed in a comprehensive document. If you have any questions regarding this matter, please contact me at 692-3437. Sincerely, ✓ f Roger Doak Geologist Solid Waste Section Hazardous Materials and Waste Management Division enclosure cc: C. Cunliffe, Weld County Planning Department B. Hedberg, Waste Services Corporation T. Jiricek, Weld County Health Department Weld County Commissioners file: SW/WLD/CEN #6 94G121 STATE OF COLORADO COLORADO DEPARTMENT OF HEALTH /oe:coto Dedicated to protecting and improving the health and ��j� �L, environment of the people of Colorado b 4300 Cherry Creek Dr.S. Laboratory Building4 Denver,Colorado 80222-1530 4210 E.11th Avenue lev6� Phone(303)692-2000 Denver,Colorado 80220-3716 (303)691-4700 Roy Romer Governor MEMORANDUM Patricia A.Nolan,MD,MPH Executive Director TO: Concerned Individuals FROM: Hazardous Materials and Waste Management Division Solid Waste Section DATE: July 28, 1993 SUBJECT: QA/QC GUIDANCE FOR LANDFILLS The Solid Waste Section of the Hazardous Materials ate Management Division of the Colorado Department of Health has recogm ch.&nee i fo'r,consistency in the area of Quality Assurance/Quality Control (QA/Q i gg`y. n(the construction of clay barrier layers in landfill liners and caps. This u `aces document is an attempt to promote consistency in QA/QC for the future_) s uct Rn of landfill liners and covers in Colorado. ( ,Y ,� These recommendations were dq'v'q°1gpec by'compiling data from three sources: (1) recently proposed and permitted sit s w c©ior'ado;=(2) the USEPA document "Design, Construction, and Evaluation of Cla ( s`forr�?Jaste Management Facilities", (EPA/530/SW-86/007F November 1988), and 1 wits on the preliminary guidelines developed by CDH in January of this year. N. a .' The frequencies for testing listed in Table 1 were arrived at through a comparison of the preliminary recommended testing frequencies and the comments received. As in the preliminary guidance, the decision that the frequency of testing be the same for covers as for liners is predicated by the condition ill the proposed State Solid Waste Regulations that the permeability of the cap be no greater than that of the liner. All Construction QA/QC results should he reviewed and approved by a Colorado register Professional Engineer. A construction QA/QC summary, along with testing results and as- built surveys, should be submitted to the Colorado Department of Health for review. These recommended tests and testing frequencies are provided as minimum guidance only. In some cases, more detailed testing may he required. However, in some cases, less testing may he appropriate. Facilities that propose significantly less testing should provide justification for the variation from this guidance. 940121 TABLE I GUIDANCE RECOMMENDATIONS FOR CONSTRUCTION QUALITY CONTROL TESTING OF LINER AND FINAL COVER BARRIER LAYER COMPONENTS FOR SOLID WASTE LANDFILLS TESTING FREQUENCY Atterberg Limits One per material type (liquid limit and plasticity or index-ASTM 4318) One per 3000 cu. yd. Sieve - Grain Size One per material type (ASTM D422 or D1140) or One per 3000 cu. yd. Permeability One per 5000 cu. yd. (ASTM 5084) Density - Nuclear Gauge One per 300 cu. yd. (ASTM D2922) Modified or Standard One per material type Proctor Curve (as ' • ^ `_ ` ! or appropriate) > \`) One per 3000 cu. yd. moisture vs. density \' �� (ASTM D698) tics"2 t 1 t.4 Oven Dried One One per 1500 Cu. yd. Moisture Content (ASTM D2216) AA, \\,) " �yw Sand ConeOne per 15000 cu. yd. Density (ASTM D1556) One-Point Proctor One per material type Notes: 1. Test frequencies are per cubic yard of placed and compacted material. 2. Lift thickness should not exceed S inches loose and 6 inches compacted. All lifts should be tested equally. A portion of permeability samples should be taken across lift boundaries to verify bonding between lifts. 3. As a minimum, the following tests should be performed once per day for each day that material is placed: Nuclear Moisture-Density Test Oven-Dried Moisture Content, and One-Point Proctor. 4. All holes made in the cover or liner barrier layers for the purposes of these tests should be backfillcd with bentonite pellets or chips and hydrated. 5. When options are allowed in the tasting frequency, the option that will result in a greater frequency will apply. 9401.21 „QEPARTMENT OF PLANNING SERVICES PHONE(303)353-3945, EXT.3540 IIDWELD COUNTY ADMINISTRATIVE OFFICES ig:- 1400 N. 17TH AVENUE a i^ GREELEY, COLORADO 80631 COLORADO DATE: December 29, 1993 TO: SURROUNDING PROPERTY/MINERAL OWNERS There will be a Public Hearing before the Weld County Planning Commission on Tuesday, January 4, 1994, at 1:30 p.m. , in the County Commissioners' Hearing Room, First Floor, Weld County Centennial Center, 915 10th Street, Greeley, Colorado, concerning the request of: NAME: Waste Services Corporation FOR: Closure/Post Closure Plan for the Central Weld Sanitary Landfill. LEGAL DESCRIPTION: Part of the SE4 of Section 31, and part of the S2 of Section 32, in T5N, R66W and part of the N2 of Section 5 , T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1. 5 miles northeast of the Town of Milliken. Your property is within five-hundred (500) feet of the property on which this request has been made or you may have an interest in the minerals located under the property under consideration. For additional information write or telephone Gloria Dunn, Current Planner. Comments or objections related to the above request should be submitted in writing to the Weld County Department of Planning Services, 1400 N. 17th Avenue, Greeley, Colorado 80631, on or before the date of public hearing. THE ITEM WAS ORIGINALLY SCHEDULED ON THE DECEMBER 21, 1993, PLANNING COMMISSION AGENDA AND WAS CONTINUED TO THE JANUARY 4, 1994, MEETING. a-0 d- . 946121, 7-fralt& R_a4P C Attorneys At Law - t 1775 Sherman Street•Suite 1300 Denver, Colorado 80203 (303)861-1963•Fax: (303) 832-4465 Ext . 123 December 31, 1993 Weld County Commissioners 915 10th Street P.O. Box 758 Greeley, Colorado 80632 Attn: Ms . Connie Harbert, Chairperson Weld County Planning Commission Department of Planning Services Weld county Administrative Offices 1400 North 17th Avenue Greeley, Colorado 80631 Attn: Mr. Chuck Cunliffe, Director Re: Closure/Post-Closure Plan and Buffer Property Special Review Permit, Central Weld County Sanitary Landfill Dear Planning Commission and County Commissioners : These comments are submitted on behalf of Sam and Myrtle Telep, Michael and Ann Hayes and Jane Carlson, members of the Ashton-Daniels Neighborhood Association. On October 13 , 1993, the Weld County Commissioners held a public hearing on a proposed settlement agreement regarding closure of the Central Weld County Sanitary Landfill . That agreement and its exhibits were approved by the Commissioners as a result of the hearing and now takes the form of a Resolution with exhibits dated October 13, 1993 . The Resolution and exhibits thereto contain material conditions which govern operation of the landfill to its /;/h A 'p c Zr c'�' ��; /1L; h� c_ 3�;' �. al closure, as well as setting forth requirements regarding closure and post-closure. The closure/post closure plan for this site should and must include an incorporation by reference of the terms and conditions of the October 13 , 1993, Resolution of the County Commissioners and all attachments thereto, particularly because the closure/post closure plan does not set them forth in their entirety. We have attached our proposed change to p. 2- 1, paragraph 2 . 1 . 1 which would add additional sentences to the text as follows : "This plan hereby incorporates by reference the resolution of the Weld County Commissioners dated October 13, 1993, and all exhibits thereto, and all conditions and requirements of that resolution shall be considered to be material elements of this closure plan. That resolution and its exhibits are attached hereto as Appendix D. In the event of any conflict between the contents of that resolution and its exhibits and this plan, the conflict shall be resolved by giving effect to the resolution and its exhibits . " This incorporation by reference is required because of the agreement between Waste Services and the parties making these comments and by the resolution of the Weld County Commissioners of October 13, 1993, which now governs the use and operation of this site for a landfill . This change is also required to meet State regulations . For example, regulation 3 . 6 . 1 (7) requires a description of the planned uses of the property during the post closure period. The closure/post-closure plan does not address this requirement whereas the October 13 , 1993 , Resolution and exhibits contain requirements, procedures, and restrictions on the use of the property in the post-closure period. Moreover, Waste Services and the parties making these comments agreed in paragraph 11 of their agreement of October 1, 1993, that the parties "agree not to seek terms or conditions in any permits, plans or Resolutions that would conflict with the terms of this Agreement . " The submitted closure/post closure plan, by not specifically incorporating the October 13, 1993 , Resolution and the exhibits thereto conflicts with the Agreement because the plan contains materially less numerous, incomplete and less restrictive provisions than the Agreement and the Resolution and its exhibits . A copy of the October 13, 1993, Resolution is attached hereto. We have not attached the exhibits as they are best provided by Waste Services in a revised closure/post-closure 2 . 94121 plan which responds to our comments . Pursuant to the Agreement of October 1, the parties making these comments do not oppose the approval of a closure/post- closure plan which fully incorporates as a material and enforceable part of the plan the October 13 , 1993, County Commissioners Resolution and all exhibits thereto. Similarly, the parties do not oppose issuance of a special review permit for the buffer property. However, the parties making these comments again renew their request that those portions of Weld County Road 27 1/2 and 49th Street which cause dust to deposit on their property and which cause a nuisance to these citizens, particularly 49th Street west of Road 27 1/2 where the Hayes Family resides and road 27 1/2 from the junction of 49th street to the landfill, be paved as soon as possible. Members of the Hayes and Telep families experience respiratory problems caused and aggravated by the road dust . Moreover, Sam and Myrtle Telep' s use and enjoyment of their ponds, wetlands, and nature reserve immediate upgradient of the landfill are materially injured by the road dust . We reiterate the necessity to protect the integrity of these ponds and wetlands in the road paving project . Issuance of the special review permit is likely to cause temporary increases in particulate matter in the vicinity of the landfill unless all available dust suppression measures, including paving, are undertaken. Therefore, it is reasonable and appropriate, especially given the efforts of these commenting parties to reach a successful disposition of a very divisive controversy over the landfill ' s life and existence, to accomplish the paving in the immediate future as a nuisance and dust suppression mitigation measure in connection with approval of the closure/post-closure plan and special review permit for the buffer property. In making these comments, we reserve the right of Jane Carlson and her family not to have the paving of 49th street east of Road 27 1/2 occur until such time as that family makes such a request . Sincerely, Gregory J. Hob s, Jr. for Hobbs, Trout & Raley, P. C. cc : Waste Services (Bill Jeffery, Marian King) Lee Morrison Sam and Myrtle Telep Mike and Ann Hayes Jane Carlson 3 . 9ZC1.s1 STATE OF COLORADO COLORADO DEPARTMENT OF HEALTH �� ._ Dedicated to protecting and improving the health and y =� environment of the people of Colorado . �.� . 4300 Cherry Creek Dr.S. Laboratory Building • Yrr•e76+'r Denver,Colorado 80222-1530 4210 E.11th Avenue Phone(303)692-2000 Denver,Colorado 80220-3716 (303)691-4700 Games r December 27, 1993 Patrida A.Nolan,MD,MPH Executive Director Bill Hedberg Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 - RE: Closure Plan - Central Weld Sanitary Landfill . Weld County Dear Mr. Hedberg: The Hazardous Materials and Waste Management Division of the Colorado Department of Health(the Division) has completed its review of the Closure Plan and subsequent amendments for the Central Weld Sanitary Landfill (CWSL). This site is located in Section 32,Township 5 North,Range 66 West. The facility,which contains 110 acres,was used for solid waste disposal. All documents were reviewed to determine their compliance with the minimum standards set forth in the Solid Wastes Disposal Sites and Facilities Act, Title 30,Article 20, Part 1, CRS as amended and with the regulations promulgated thereunder, 6 CCR 1007-2 ( the Regulations). The Division has the following comments: 1. The Division requests the soil loss for the six inch erosion layer be calculated for the life of the post- closure period. If the soil loss is significate over the post-closure period, then the erosion layer shall be adjusted accordingly. 2. In addition to Appendix I constituents of the Regulations,ground water quality monitoring shall include two volatile organic compounds,Dichlorofluoromethane and Dichlorodifluoromethane,which have been detected at this facility and are not specified in Appendix 1. These parameters are listed in the quarterly ground water monitoring data for this facility. The Division requests written concurrence on these comments prior to commencement of closure activities. It is the assessment of this Division that the facility can comply with the requirements of the Regulations, if the facility is closed as detailed in the Closure Plan, amendments and the aforementioned comments. Based on this assessment, the Division recommends approval of the closure design of this faci' If you have any questions concerning this matter, please contact Roger Doak at 92-3437. Sincerely, / ' acl RogerDoak le nn F. Mallory Geologist Section Leader Solid Waste Section Solid Waste Section Hazardous Materials and Hazardous Materials and Waste Management Division Waste Management Division cc: Weld County Commissioners G. Dunn, Weld County Planning Department T. Jiricek, Weld County Health Department file: SW/WLD/CEN #6 9401.21 (s) pLNt_ Ckhib'x+ o Cc : emu; ; SUMMARY OF THE WELD COUNTY PLANNING COMMISSION MEETING - - .January 4, 1994 A regular meeting of the Weld County Planning Commission- was held January 4, 1994, in the County Commissioners' Hearing Room (Room- #101) , Weld County Centennial Building, 915 Tenth Street, Greeley, Colorado. The meeting was called to order by the Chairperson, Judy Yamaguchi at 1:30 p.m. Tape 454 Roll Call Richard Kimmel Present Present Bill O'Hare Shirley Camenisch Present Ron Sommer Present Juliette Kroekel Present Tom Rulon Present Present Bud Clemons Absent Marie Koolstra Judy Yamaguchi Present Also present: Gloria Dunn, Current Planner, Department of Planning Services; Lee Morrison, Assistant County Attorney; Sharyn Ruff; Secretary. The summary of the last regular meeting of the Weld County Planning Commission held on December 21, 1993, was approved as read. APPLICANT: Waste Services Corporation (Continued from December 21, 1993) REQUEST: Closure/Post-Post Closure Plan. LEGAL DESCRIPTION: Part of the SE4 of Section 31 and part of the S2 of Section 32, T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken The Chairperson asked if there was anyone in the audience who wished to speak for or against the application. No one wished to speak. Bill O'Hare moved the Closure/Post-Closure Plan for Waste Services Corporation be continued, based on the recommendation of the Department of Planning Services' staff to January 18, 1994, at 1:30 p.m. The State and County Health Departments have not yet completed their reviews of the Closure/Post-Closure Plan. The plan must be approved by these referral agencies prior to consideration by the Planning Commission and Board of County Commissioners. Bud Clemons seconded the motion. The Chairperson asked the secretary to poll the members of the Planning Commission for their decision. Richard Kimmel - yes; Bill O'Hare - yes; Shirley Camenisch - yes; Ron Sommer - yes; Juliette Kroekel - yes; Tom Rulon - yes; Judy Yamaguchi - yes. Motion carried unanimously. Ck1u MINUTES OF THE WELD COUNTY PLANNING COMMISSION MEETING December 21, 1993 Page 3 APPLICANT: Waste Services Corporation REQUEST: Closure/Post-Closure Plan. LEGAL DESCRIPTION: Part of the SE4 of Section 31 and part of the S2 of Section 32, T5N, R66W and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken Gloria Dunn explained the applicant has requested the Closure/Post-Closure Plan be continued until January 4, 1994, at 1:30 p.m. , to allow time for the State and County Health Departments to complete their reviews of the Plan. The plan must be approved by these referral agencies prior to consideration by the Planning Commission and Board of County Commissioners. Shirley Camenisch moved the Closure/Post-Closure Plan for Waste Services Corporation be continued until January 4, 1993. Marie Koolstra seconded the motion. The Chairman asked the secretary to poll the members of the Planning Commission for their decision. Bill O'Hare - yes; Shirley Camenisch - yes; Ron Sommer - yes; Marie Koolstra - yes; Richard Kimmel - yes. Motion carried unanimously. Bud Clemons arrived at 1:55 p.m. CASE NUMBER: Amended USR-726-2 APPLICANT: Ralph Nix Produce, Inc. REQUEST: A Site Specific Development Plan and an Amended Special Review permit for an onion storage warehouse in the A (Agricultural) zone district. LEGAL DESCRIPTION: Part of the SE4 of Section 14, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Gilcrest; approximately 3 miles southwest of the Town of LaSalle, north of and adjacent to Weld County Road 44 and east of Highway 85. Jerry Nix, applicant, explained they moved the onion storage warehouse from Gilcrest to Peckham. They will ensure the proposed addition stays outside of any easements located on the property. Monica Daniels-Mika suggested the addition of Development Standard Number 16, to read: 16. Prior to recording the plat, all utility and drainage easements shall be delineated on the plat with special attention given to Western Mutual Ditch. 94012t NOTICE OF CONTINUANCE Pursuant to the zoning laws of the State of Colorado and the Weld County Zoning Ordinance, a public hearing will be held in the Chambers of the Board of County Commissioners of Weld County, Colorado, Weld County Centennial Center, 915 10th Street, First Floor, Greeley, Colorado, at the time specified. All persons in any manner interested in the Closure/Post-Closure Plan are requested to attend and may be heard. Should the applicant or any interested party desire the presence of a court reporter to make a record of the proceedings, in addition to the taped record which will be kept during the hearing, the Clerk to the Board's Office shall be advised in writing of such action at least five days prior to the hearing. The cost of engaging a court reporter shall be borne by the requesting party. BE IT ALSO KNOWN that the text and maps so certified by the Weld County Planning Commission may be examined in the office of the Clerk to the Board of County Commissioners, located in the Weld County Centennial Center, 915 10th Street, Third Floor, Greeley, Colorado. DOCKET NO: 94-01 APPLICANT Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 DATE: February 2, 1994 (continued from January 5, 1994) TIME: 10:00 a.m. REQUEST: Closure/Post-Closure Plan for Central Weld/Greeley-Milliken Sanitary Landfill LEGAL DESCRIPTION: Part of the SE* SWe of Section 32, Township 5 North, Range 66 West of the 6th P.M. , Weld County, Colorado BOARD OF COUNTY COMMISSIONERS WELD COUNTY, COLORADO BY: DONALD D. WARDEN WELD COUNTY CLERK TO THE BOARD BY: Shelly K. Miller Deputy Clerk to the Board DATED: January 5, 1994 940121 CERTIFICATE OF MAILING The undersigned hereby certifies that a true and correct copy of the foregoing Notice of Hearing, Docket #94-01, was placed in the United States mail, postage prepaid, addressed to the following property owners. 41) DATED this / � day of Cc241'lVQ/ •(.{? , 1994. K. 7hcnt,„)Q Deputy C rk to the Board WASTE SERVICE, INC. HAROLD AND MADELINE DANIELS C/0 WASTE MANAGEMENT 23732 WELD COUNTY ROAD 27.5 P.O. BOX 122283 MILLIKEN, CO 80543 FORT WORTH, TX 76121 GREGORY J. HOBBS, JR. ELLA MARIE HAYES HOBBS, TROUT & RALEY, P.C. SUSANNE STEPHENS, ET AL ATTORNEYS AT LAW BOX 773 1775 SHERMAN STREET, SUITE 1300 SARATOGA, WY 82331 DENVER, CO 80203 G.D. MOSSBERG SENATOR HANK BROWN JANET LEA SHERROD-MOSSBERG 1100 TENTH STREET, ROOM 201 4603 83RD AVENUE GREELEY, CO 80631 GREELEY, CO 80634 SENATOR TOM NORTON ARTHUR P. GARCIA SENATE CHAMBERS 13998 WELD COUNTY ROAD 378 STATE CAPITOL BUILDING MILLIKEN, CO 80543 DENVER, CO 80203 HEIRS OF ANN SPOMER, ET AL CRAIG A. SMITH D.C. C/O LOUIS REIKERT, 1ST NATIONAL BANK SMITH CHIROPRACTIC OFFICES, P.C. P.O. BOX 1058 801 ELEVENTH AVENUE GREELEY, CO 80632 GREELEY, CO 80631 MYRTLE ANN TELEP DON HOFF 2315 54TH AVENUE ATTORNEY AT LAW GREELEY, CO 80634 1025 9TH AVENUE, SUITE 1!309 GREELEY, CO 80631 KEITH V. , MELODIE R. STEVEN D. , AND DOUGLAS L. KAMMERZELL WALKER MILLER 12314 HIGHWAY 60 ATTORNEY AT LAW MILLIKEN, CO 80543 822 7TH STREET GREELEY, CO 80631 ARTHUR P. ROY 1011 11TH AVENUE WASTE SERVICES CORPORATION GREELEY, CO 80631 C/O WASTE MANAGEMENT OF NORTHERN COLORADO WASTE MANAGEMENT DISPOSAL ATTN: WILLIAM HEDBERG SERVICES OF COLORADO, INC. 6037 77TH AVENUE 5660 GREENWOOD PLAZA BOULEVARD #400 GREELEY, CO 80634 ENGLEWOOD, CO 80111 WASTE SERVICES CORPORATION 40000 WELD COUNTY ROAD 25 AULT, CO 80610 940121 CERTIFICATE OF MAILING - DOCKET 7194-01 PAGE 2 JANE CARLSON, ATTORNEY 1109 13TH STREET GREELEY, CO 80631 MICHAEL S. HAYES 8200 W. 49TH ST. GREELEY, CO 80634 CONGRESSMAN WAYNE ALLARD BANK ONE PLAZA, SUITE 350 GREELEY, CO 80631 WELD COUNTY P.O. BOX 758 GREELEY, CO 80632 940121 STATE OF COLORADO F COLORADO DEPARTMENT OF HEALTH .coo;=� Dedicated to protecting and improving the health and „� environment of the people of Colorado • 4" 49:7 4300 Cherry Creek Dr.S. Laboratory Building •ra76 Denver,Colorado 80222-1530 4210 E.11th Avenue Phone(303)692-2000 Denver,Colorado 80220-3716 Roy Roarer (303)6914700 Governor January 14, 1994 Patricia A.Nolan,MD,MPH Executive Director William Hedberg Waste Services Corporation 6037 77th Avenue Greeley, Colorado 80634 RE: Closure Plan Central Weld Sanitary Landfill Weld County . Dear Mr. Hedberg: The Hazardous Materials and Waste Management Division of the Colorado Department of Health (the Division) has reviewed your letter dated January 7, 1994. Your letter is in response to the Division's letter of December 27, 1993, concerning the Closure Plan for Central Weld Sanitary Landfill (CWSL). Your reply adequately addresses the Division's comments detailed in the December 27, 1993 letter. If you have any questions regarding this matter, please contact me at 692-3437. Sincerely Roger Doak Geologist Solid Waste Section Hazardous Materials and Waste Management Division cc: Weld County Commissioners G. Dunn, Weld County Planning T. Jiricek, Weld County Health Department A. Scheere, Waste Services Corporation file: SW/WLD/CEN #6 6/1/ « : N PL,. 940121 INVENTORY OF ITEMS SUBMITTED FOR CONSIDERATION Applicant: Waste Services Corp. Closure/Post-Closure Plan Submitted or Prepared Prior to Hearing At Hearing 1. Application 50 pages X 2. DPS referral summary sheet and letter X 3. DPS letter to applicant X 4. DPS Recommendation X 5. DPS Surrounding Property Owner/Mineral Owner Mailing list, letter and certificate. X 6. 2 DPS Maps Prepared by Planning Technician X 7. DPS Notice of Hearing X 8. DPS Case File Summary Sheet X 9. DPS Field Check X 10. November 18, 1993 letter to Waste Services Corp. from T. Jiricek X 11. December 2, 1993 referral from Weld County Engineering Department X 12. November 30, 1993 referral from Army Corps of Engineers X 13. December 2, 1993 referral from Colorado Oil and Gas Conservation Commission X 14. December 21, 1993 request for continuance from the Department of Planning Services to the Planning Commission X 15. December 15, 1993 letter to Colorado Department of Health from Waste Services Corp. X 16. November 22, 1993 letter from surrounding property owner Dorothy Swayne X 17. December 9, 1993 letter to Weld County Health Department from Waste Services Corp. X 18. December 15, 1993 referral from West Greeley Soil Conservation District X 19. December 6, 1993 letter to Waste Services Corp. from the Colorado Department of Health X 20. January 4, 1994 request for continuance from the Department of Planning Services to the Planning Commission X Exhibit M 940121 INVENTORY OF ITEMS Waste Services Corp. Closure/Post-Closure Plan Page 2 21. December 13, 1993 referral from Colorado Geological Survey X 22. December 15, 1993 referral from the City of Greeley Planning Department X 23. Colorado Regulations pertaining to Closure and Post-Closure of Solid Waste Disposal Sites and Facilities X 24. December 31, 1993 letter to Board of County Commissioners and Weld County Planning Commission from Gregory J. Hobbs, Jr. X 25. October 13, 1993 Board of County Commissioners Resolution: Waste Services Corp. X 26. January 5, 1994 letter to Lee Morrison from Waste Management Inc. - West X 27. January 14, 1994 letter to Waste Services Corp. from the Colorado Department of Health X 28. January 17 , 1994 memo to Department of Planning Services from Weld County Health Department X 29. January 7, 1994 letter to the Colorado Department of Health from Waste Services Corp. X 30. December 28, 1993 letter to Waste Services Corp. from West Greeley Soil Conservation District X 31. December 27 , 1993 letter to Waste Services Corp. from the Colorado Department of Health X 32. December 22, 1993 letter to the Department of Planning Services from surrounding property owner Michael Hayes X 33. December 29, 1993 letter to Michael Hayes from the Department of Planning Services X 34. January 18, 1994 letter to Weld County Planning Commission from Michael Hayes X 35. January 4, 1994 Planning Commission resolution of recommendation for continuance to January 18, 1994 X 36. January 5, 1994 request for continuance from the Department of Planning Services to the Board of County Commissioners February 2, 1994 X 37. December 21, 1993 Planning Commission resolution of recommendation for continuance to January 4, 1994 X 340121 INVENTORY OF ITEMS Waste Services Corp. Closure/Post-Closure Plan Page 3 38. January 5, 1994 Board of County Commissioners Resolution continuing case to February 2, 1994 X I hereby certify that the 38 items identified herein were submitted to the Department of Planning Services at or prior to the scheduled Planning Commission hearing. I further certify that these items were forwarded to the Clerk to the Board's office on January 21, 1994. Gloria Minn, Current lanner STATE OF COLORADO ) COUNTY OF WELD qjr- SUBSCRIBED AND SWORN TO BEFORE ME THIS 44 day of MU _- 19414 ' r t c� cp•?‘.. •SEu •A on N t p U , NOTARY BLIC , � .• Oa . tee • �eti*ColqueSsion Expiresiltrilalakal ►9'lr Air cO%- 9 ' 1.21 BEFORE THE WELD COUNTY, COLORADO, PLANNING COMMISSION RESOLUTION OF RECOMMENDATION TO THE BOARD OF COUNTY COMMISSIONERS Moved by Ron Sommer that the following resolution be introduced for passage by the Weld County Planning Commission. Be it resolved by the Weld County Planning Commission that the application for: NAME: Waste Services Corporation ADDRESS: 6037 77th Avenue, Greeley, Colorado 80634 REQUEST: Closure/Post Closure Plan LEGAL DESCRIPTION: Part of the SE4 of Section 31, and part of the S2 of Section 32, T5N, R66W, and part of the N2 of Section 5, T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken, north of Weld County Road 398. be continued, to allow the neighborhood committee time further review application materials. Tom Rulon seconded the motion. VOTE: For Passage Against Passage Ron Sommer Richard Kimmel Tom Rulon Bill O'Hare Juliette Kroekel Marie Koolstra Judy Yamaguchi The Chairperson declared the motion for continuance was denied and ordered that a certified copy be placed in the file of this case. CERTIFICATION OF COPY I, Sharyn Ruff, Recording Secretary for the Weld County Planning Commission, do hereby certify that the above and foregoing resolution is a true copy of the resolution of the Planning Commission of Weld County, Colorado, adopted on January 18, 1994. Dated the 1 h o nuary, 1994. Sharyn F. Ruf Secretary i j� } ' 910121 BEFORE THE WELD COUNTY, COLORADO, PLANNING COMMISSION RESOLUTION OF RECOMMENDATION TO THE BOARD OF COUNTY COMMISSIONERS Moved by Richard Kimmel that the following resolution with a copy of the October 13, 1992, Board of County Commissioner's resolution attached as a reference document, and the replacement of Condition of Approval Number 1, be introduced for passage by the Weld County Planning Commission. Be it resolved by the Weld County Planning Commission that the application for: NAME: Waste Services Corporation ADDRESS: 6037 77th Avenue, Greeley, Colorado 80634 REQUEST: Closure/Post Closure Plan LEGAL DESCRIPTION: Part of the SE4 of Section 31, and part of the S2 of Section 32, T5N, R66W, and part of the N2 of Section 5, T4N, R66W of t`h& 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken, north of Weld County Road 398. be recommended favorably to the Board of County Commissioners for the following reasons: 1. The submitted application materials are in compliance with the Board of County Commissioners resolution set forth on October 13, 1993, regarding guidelines for excavation, remediation activities and closure/post-closure requirements for the property. 2. The Closure/Post-Closure plan has been approved by the Colorado Department of Health, Waste Management Division, and the Weld County Health Department, Environmental Protection Division. The Closure/Post-closure plan meets the Colorado regulations pertaining to Closure and Post-Closure of Solid Waste Disposal Sites and Facilities (6 CCR 1007-2) . The Planning Commission's recommendation for approval is conditional upon the following: 1. A copy of the Board of County Commissioners resolution be appended to the Closure/Post-Closure Plan as a reference document. 2. Approval of the Closure/Post-Closure plan is not intended to affect the enforceability of the October 13, 1993, Board of County Commissioners Resolution. Bill O'Hare seconded the motion. VOTE: For Passage Against Passage Richard Kimmel Ron Sommer Bill O'Hare Tom Rulon Juliette Kroekel Marie Koolstra Judy Yamaguchi fh;htt-D 94O121 RESOLUTION, Waste Services Corporation January 18, 1994 Page 2 The Chairperson declared the resolution passed and ordered that a certified copy be forwarded with the file of this case to the Board of County Commissioners for further proceedings. CERTIFICATION OF COPY I, Sharyn Ruff, Recording Secretary for the Weld County Planning Commission, do hereby certify that the above and foregoing resolution, is a true copy of the resolution of the Planning Commission of Weld County, Colorado, adopted on January 18, 1994. ted the 18 of Jan ry, 1994. Sharyn F. Ruff Secretary 940121 SUMMARY OF THE WELD COUNTY PLANNING COMMISSION MEETING January 18 , 1994 A regular meeting of the Weld County Planning Commission was held January 18 , 1994, in the County Commissioners' Hearing Room (Room #101) , Weld County Centennial Building, 915 Tenth Street, Greeley, Colorado. The meeting was called to order by the Chairperson, Judy Yamaguchi, at 1:30 p.m. Tape 455 Roll Call Present Richard Kimmel Present Bill O'Hare Absent se Shirley Camenisch Present —nt _ ; Juliette Kroekel Pres en Bud Clemons resent Marie Koolstra Present -_ Ron Sommer Present r Tom Rulon ) Judy Yamaguchi Present c- Also present: Monica Daniels-Mika, Current Planner; Gloria Dunn, Current Planner; Greg Thompson, Current Planner; Jeff Stoll, Director, Environmental Protection Services, Weld County Health Department; Trevor Jiricek, Specialist; Environmental Protection Services, Weld County Health Department; Don Carroll, Administrative Manager, Engineering Department, and Sharyn Ruff, Secretary. The summary of the last regular meeting of the Weld County Planning Commission, held on January 4, 1994, was approved as read. APPLICANT: Waste Services Corporation (Continued from January 4, 1994) REQUEST: Closure/Post-Post Closure Plan. LEGAL DESCRIPTION: Part of the SE4 of Section 31 and part of the S2 of Section 32, T5N, R66W and part of the N2 of Section 5 , T4N, R66W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1.5 miles northeast of the Town of Milliken Bill Hedberg, representative, thanked the Planning Commission and introduced Leonard Butler, Engineer, Waste Management, Colorado, who gave an overview of the application and explained they will close the facility in an environmentally safe method that will control surface water run-off, cover material and protect groundwater. The Chairperson asked if the applicant agreed with the Department of Planning Services' staff recommendation. Bill Hedberg said yes . The Chairperson asked if there was anyone in the audience who wished to speak for or against this application. v 131 (11- ) P 940121 SUMMARY OF THE WELD COUNTY PLANNING COMMISSION MEETING January 18 , 1994 Page 2 Michael Hays, surrounding property owner, requested the resolution of the October 13 , 1992 , Board of County Commissioners meeting be incorporated into the closure plan. The surrounding neighbors would like to see a formal landscaping plan in place with heavier grasses to control noxious weeds. They don' t want any of the monitoring wells removed, they would like more added. Cynthia Telep Turner, surrounding property owner, agreed with Michael Hays and explained their Attorney, Greg Haus, was unable to attend the hearing. Extensive discussion followed. Marian King, Attorney, Waste Services Corporation, said the incorporation of the resolution into the actual document would require them to resubmit the application through the State Health Department. Not all of the resolution is applicable to the "closure plan" . She would recommend and agree to the resolution being referred to as an appendix reference document. Bill O'Hare asked who monitors the closure plan. Leonard Butler said they contract through a third party that the State Health Department and Weld County Health Department monitors. The surrounding property owners were concerned about contamination in the groundwater. Jeff Stoll said contamination levels, if any, haven' t been determined, the Health Department is in the process of investigating and monitoring wells will be adjusted accordingly. Michael Hays and Cynthia Telep-Turner said they needed legal representation and would like to continue this application until their Attorney had time to review proposed suggestions. Ron Sommer moved the Closure/Post-Closure Plan for Waste Services Corporation be continued until February 1, 1994, to give the surrounding property owners more time to address issues. Tom Rulon seconded the motion. The Chairperson asked the secretary to poll the members of the Planning Commission for their decision. Richard Kimmel - no; Bill O'Hare - no; Juliette Kroekel - no; Marie Koolstra - no; Ron Sommer - yes; Tom Rulon - yes; Judy Yamaguchi - no. Motion failed. Richard Kimmel moved to forward the Closure/Post-Closure Plan to the Board of County Commissioners with the Planning Commissions recommendation for approval with a copy of the October 13 , 1992, Board of County Commissioner's resolution appended as a reference document, and the replacement of Condition of Approval #1. Bill O'Hare seconded the motion. 9;o 21. SUMMARY OF THE WELD COUNTY PLANNING COMMISSION MEETING January 18 , 1994 Page 3 The Chairperson asked the secretary to poll the members of the Planning Commission for their decision. Richard Kimmel - yes; Bill O'Hare - yes; Juliette Kroekel - yes ; Marie Koolstra - yes; Ron Sommer - no; Tom Rulon - no; Judy Yamaguchi - yes. Motion passed. Marie Koolstra left the meeting. CASE NUMBER: S-347 (Continued from January 4, 1994) APPLICANT: Ivar and Donna Larson REQUEST: Final Plat for a Minor Subdivision in the A (Agricultural) zone district (Mt. View Estates q1) . LEGAL DESCRIPTION: Part of the NE4 of Section 5, T4N, R68W of the 6th P.M. , Weld County, Colorado. LOCATION: Approximately 1/4 mile west of the intersection of Weld County Road 5 and State Highway 60. Donna Larson, applicant, explained they believe this application would be the best use for the property. They support a rural lifestyle and the proposed 9 lots would be an appropriate use. She explained that although the zoning remains agricultural the Weld County Assessor's Office assesses and taxes the surrounding property as residential. Traffic generated by 9 home-sites would not be a factor and the property is buffered by a ditch on the back side. This 9 lot development would be nested within the current residential development in the area. All utilities are available to the area. The Chairperson asked if there was anyone in the audience who wished to speak for or against this application. John Shulson, surrounding property owner, is in support of this development. He stated unless you have a good size farm it is not economical to farm on the smaller divided properties. Dennis Keel, surrounding property owner, said they don' t object to building a home on the 10 or 15 acre properties , but he is opposed to 9 dwellings. The 10 and 15 acre lots are compatible with what is in the area now. Bill O'Hare asked how many people are farming in this area. Dennis Keel said all of the properties are in some way used agriculturally. There is alot of farming in the area, Bill O'Hare asked if septic systems on the property would pose a problem. Monica said the Health Department had completed preliminary tests in the area and each site would have to be evaluated separately, but the Health Department had no problems with proposed septic systems. 9 4.0 121 JAN-28-94 FRI 10:43 "• 02 01/27/91 17:15 0 -, 14001 STATE OF COLORADO COLORADO DEPARTMENT OF HEALTH ?I:: Dedicated m protecting and trite health and R^":: environment°f ilm people of Cohrado 43rochw,v 4eah Dr.1 latatly 8ofdlry� Pone003)692-00223-7530 Dem4r,iNhMenae Phone P03)69I-2000 CJemer,Cobneb L0320a718 P03)691.1700 ttc, Wrytmw co."ula rffigT1 � Pa"iwhMao;Nolan. O.MPH January 27, 1994 �� r Gloria Dunn Weld County Planning Department 1400 North 17th Avenue Greeley, Colorado 80631 Dear Ms. Drum: In response to your request,I have reviewed the"Agreement"between Waste Management Disposal Services of Colorado, Inc. and the "Ashton-Daniels Neighborhood Association." A resolution passed by the Weld County Planning Commission, dated January 18, 1994, appends the "Agreement" to the Closure Plan for the Central Weld Sanitary Landfill (CWSL). The Closure Plan for CWSL was approved by the Hazardous Materials and Waste Management Division of the Colorado Department of Health (the Division). In the Division's judgement, the "Agreement" does not affect the substantive provisions of the Closure Plan for this facility. If you have questions regarding this matter,please contact me at 692-3437. Sincerel ca<, Roger Doak Geologist Solid Waste Section • Hazardous Materials and Waste Management Division co: Weld County Commissioners T. Jiricek,Weld County Health Department A. Scheer; Waste Services Corporation T filet SW/WLD/CEN 6 Post It"braed in transmittal memo 7071 rw moor } Pion"a EXHIBIT JA N 28 '94 1O 49 PAGE.002 940 121 JAN-28-94 FRI 10:44 P. 03 mEmoRAnDum le 104 Gloria Dunn, W.C. Planning January 28, 1994 To D�t� Trevor Jiricek, W.C. Health Departmen COLORADO From_ ' CWSL, Closure Plan and "Agreement" Sublect: r_ Our Division has reviewed the "Agreement" between Waste Management Disposal Services of Colorado, Inc. and the "Ashton-Daniels Neighborhood Association". In the Division's judgement, the attachment "Agreement" to the closure plan will not affect the previously approved plan for this• EX IBIT JAN 28 '94 10:49 PAGE.003 940121 Hello