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Home My WebLink About20003381.tiff -S -� MICHAEL T. LESAGE „ t ATTORNEY AT LAW 620 13TH sTREET � �� P.O. BOX 306 e J I; ; PASO ROBLES, CALIFORNIA 93447-0306 r TELEPHONE (805) 238-3484 QUG 7 2000 FAX (805) 239-7377 ,• August 16, 2000 ORNErs FtC Weld County Planning Dep` Lee Morrison, Esq. Fax # (970) 352-0242 io_ic 17 2000 Weld County Attorney Weld County Il /� P.O. Box 758 t� J ED 915 10th Street Greeley, Colorado 80632 Re: Roggen Disposal Hearing Dear Mr. Morrison: Pursuant to our telephone discussion of this date, please accept this letter as a request for a continuation of the now scheduled hearing to Monday, September 11, 2000, or to a later acceptable date. I will FedEx to you today John Mahoney's draft report re reclamation at the Roggen Disposal site. Upon review of this draft report, staff may conclude that it adequately addressed their concerns and that no hearing is required. Also as we indicated, additional time is needed for reclamation recommendations by the Weld County Extension Office. Thank you for your consideration. Sincerely,irX51O,MI T. LeSAGE MTL:soh cc: Mike Cervi John Mahoney t .n `-• fi g- 64L fro- s L'itiL) be\ot_ ) tint ��vVVI et 1 b ict Gd�q 20003381 MICHAEL T. LESAGE ATTORNEY AT LAW 620 13TH STREET P.O. BOX 306 PASO ROBLES, CALIFORNIA 93447-0306 TELEPHONE (805) 238-3484 FAX (805) 239-7377 August 16, 2000 • Lee Morrison, Esq. Fax # (970) 352-0242 Weld County Attorney Weld County P.O. Box 758 915 10th Street Greeley, Colorado 80632 Re: Roggen Disposal Hearing Dear Mr. Morrison: Attached is a copy of Permit USR-481:81:27 as issued for the Roggen Disposal Facility in 1981. Please note that paragraph 18 sets forth the duties of reclamation upon "cessation of operations" . In addition, this permit was issued prior to the enactment of several subsequent Federal and State statutes affecting these issue. The draft reclamation plan is submitted in the hopes that in its final form, it will adequately address and resolve all of the County' s concern with the specific understanding that my client is not in any way waiving its legal rights as established under the existing permit as to closure of Roggen Disposal. Thank you for your consideration in this matter. Sincerely,beil4;;— *-6MI L T. LeSAGE cc: Mike Cervi John Mahoney -g-C> JP" M1KB CERVI USR-481 :81 :27 DEVELOPMENT STANDARDS 1. The use shall be an oil z�e�deld fluid btinedisposal wastessand the recovery of ite for the sole purpose of disposal of oil any oil associated with the waste received t this site. ThOOne eite employee 'shall be on the facility during dumping is not on hours. the shall be secured to prohibit dumpingwhen an employee subject site. No toxic or hazardous wastes shall be accepted at this facility. The proposal shall include the facilities shown hereon. Said facilities shall be: A. One (1) structure built in accordance with the requirements of the Weld County Building Code and utilized as an office for the control, operation and security of the facility. • B. The applicant shall be limited to four (4) State Health Department certified ponds at this facility. C. The barrel tanks on the facility shall have a total minimum capacity of 500 barrels and not exceed 2,500 barrels. D. Two enclosed concrete dumping pits. 2. Access to the Special Use Permit area is limited to one access point shown hereon. The access shall have the approval of the State Highway Department. The• access shall beuconstructed in ents of the accordance with the recommendat3=fva�edinterior roads shall be State Highway Department. All p graveled. 3. A three (3) foot clay liner shall be constructed for A sconti containment purposes in all ponds associated with this site. liner may be used as'an alternative if such liner is approved and certified by the Colorado State Health Department prior to c ng construction a or to allow a substitute liner to be determined after the g has been completed. Such liner shall also be approved by the Board of County Commissioners at a regular public meeting; 4. The liner shall be placed in an approved manner to achieve a retention of all fluids for' the maximum life expectancy of this facility. The methods of placement used and values obtained for acceptance of prior written approval from a qualified and the liner shall receive Department of Health registered soils engineer (and the Coof f such document shall be filed rWaste Management Division). A copy Services prior to in the office of the Department of Planning conditional approval. six (6) inches of protective soil mover be placed on the 5. A minimum ond. prepared clay surface of each p The bottom of the pond liner shall be located no closer than fifteen 6, water table. (15) feet from the top of the existing Ed Wd6E:T0 000E 6E .Inr bt7S69S20L6 : 'ON xbdld_N2WNOdif1N9 Jl9NOHdW WOdd Mike Cervi USR-481:81 :27 Development Standards Page 2 • 7. A qualified soils engineer shall monitor the construction of ponds and provide written certification to the Colorado Department of Health-Waste Management Division and the Department of Planning Services prior to conditional approval. 8. The applicant shall discuss with the Colorado Department of Health Waste Management Division and agree to a minimum free board determination for this operation. A copy of this agreement shall be filed in the - office of the Department of Planning Services prior to conditional approval. Waste shall not be allowed to accumulate above the minimum free board level. 9. The operator shall provide measuring devices in all ponds which will not damage the lining. Said devices shall be easily accessible , and easily visible to the Colorado Department of Health and Weld County Health Department. 10. The applicant shall discuss with the Colorado Department of Health Waste Management Division and agree& to a plan:for periodic monitoring of the facility. This plan should include the frequency intervals and parameters to be sampled for both ground water and effluent contained within the ponds. A copy of this agreement shall be filed in the office of the Department of Planning Services prior to conditional approval. 11. Prior to star±'—up of the new facility, the site shall be inspected by a representative of either the Colorado Department of Health or the Weld County Health Department. 12. At the end of five years (from the date of final project approval) the owner and/or operator shall sample test the liner material t❑ determine integrity and life expectancy performance. A copy of these results shall be submitted to the Colorado Department of Health and the Department of Planning Services. 13. The settling ponds shall be screened with a one inch wire mesh to prevent wildlife gaining access to the pit. All settling ponds shall have flagging devices placed no more than ten (10) feet apart to discourage birds from landing on the water surface. These flagging devices shall be maintained in good repair throughout the life of the operation. 14. The applicant shall install adequate fencing for control of access to all ponds located at this facility. • 15. An access road shall be constructed and maintained around the perimeter of each pond such that there is adequate access for a vacuum trust to skim oil from all areas of the holding ponds. 16. Four test wells have been located and constructed for determining local direction of groundwater flow at this site. The wells were bd WdO2:T 0 000E 8z 'I of bbS69SSBL6 : 'ON XUd 1d1NEWN0d I(1N3 A2NOHUW : WOdA Mike Cervi USR-48] :81 :27 Development Standards Page 3 placed in such a manner that one (1) well is upgradient of the site and the remaining wells are located downgradient. The wells shall be maintained during the life of the facility. 17. All phases of the operation shall comply with all County and State Health Standards and Regulations pertaining to air quality, water quality, noise emission, and sanitary disposal systems. Representativtes or members of the Weld County Health Department, Weld County Department of Planning Services Staff, Colorado Department of Health, and/or Fort Morgan Water Quality District shall be granted access onto the site at any reasonable time in order to insure the operations carried out on the site comply with all applicable Weld County and State Health Regulations. 18. Upon cessation of operations at the site all structures shall be removed to thirty (30) inches below grade and all ponds or pits shall be filled and graded- so as to conform with the surrounding terrain. The special use permit area shall be reclaimed to the condition prior to this operation. 19. The Special Use Permit shall be limited to the plans shown hereon and governed by the Development Standards stated above and all applicable Weld County Regulations. Any material deviations from the plans and/or Development Standards as shown or stated above shall require the approval of an amendment to the Special Use Permit by the Planning Commission and the Board of County Commissioners before such changes- from the plans and/or Development Standards shall be permitted. Any other changes from the plans and/or Development Standards shall be filed in the office of the Department of Planning Services. 1,0. The property owner and/or operator of this operation shall be responsible for complying with all of the above stated Development Standards. Noncompliance with any of the above stated Development Standards may be reason for revocation of the Special Use Permit by the Board of County Commissioners. 21. Any waste removed from the ponds shall be disposed of at a dump site approved to handle such wastes. Sd WdO2:T© 000E 8Z 'I of VVS69S202_6 : '0N Xdd 1tlNdWNOd I nN3 ABNOHJW : Wald MICHAEL T. LESAGE ATTORNEY AT LAW ' l 620 13TH STREET P.O. BOX 306 PASO ROBLES, CALIFORNIA 93447-0306 TELEPHONE (805) 238-3484 • FAX (805) 239-7377 August 16, 2000 Lee Morrison, Esq. Fax # (970) 352-0242 Weld County Attorney Weld County P.O. Box 758 915 10th Street Greeley, Colorado 80632 Re: Roggen Disposal Hearing - Reclaimation Plan Dear Mr. Morrison: Please accept this letter as confirmation of our request for a continued hearing date to September 11, 2000 or to a designated hearing date thereafter. Enclosed is John Mahoney' s draft of a reclamation plan. I believe your staff will find this plan is more than acceptable and that it fully addresses all of their concerns. In addition, Jerry Airidge of Weld County Extension Service will be asked to review the site and submit his recoiLnmendations for reclamation. It is believed that the hearing will be far more productive if both of these reports are in hand and have been reviewed by staff. In addition, if these reports adequately address Weld County' s concerns, a hearing may not be required at this time. Thank you for your consideration of this matter. Sincerely, -6/2/76C/ MIC GAEL T. LeSAGE MTL:soh cc: Mike Cervi John Mahoney , SAMPLING and ANALYSIS PLAN (SAP) for ROGGEN DISPOSAL INTRODUCTION ... / . The following Sampling and Analysis Plan is prepared for the Roggen Brine Disposal Facility located in southeastern Weld County(figure 1, Appendix A). The sampling and analysis procedure(SAP) addresses the following: 1)the current site conditions; 2)a review of past sampling history of the existing monitoring wells; 3)vicinity land use; and 4)recommendations for site evaluation sampling as part of the site closure activity. Historical background information is provided in Section 2. Prior environmental investigative findings are included in Section 3. Sample location criteria and analytical procedures are outlined in Section 4. Quality control procedures including sampling documentation and decontamination activities are discussed in Section 5. The objective of the proposed sampling is to obtain the needed quantitative data to develop a suitable plan for the permanent closure of the facility. The results of the sampling will be incorporated into a Closure Plan. The subsequent closure plan will be prepared based on the results of the sampling. The closure plan will include the results of the sampling to establish a target cleanup level, if the sampling results determine that high contaminant levels are present. This Sampling and Analysis Plan-will also be submitted to the Colorado Department of Public Health and Environment(CDPHE)and the Weld County Department of Public Health and Environment(WCDPHE). The results of the sampling will be summarized and also submitted to the above regulatory agencies. The summary report will include sampling results, field forms, lab analysis. MEC2000,RI4 1 Ed WHIM:OT 000E Ba '6nd t'S69S2BL6 : 'ON Xbd 11d1N3WNO InNO A3NOHUW : WOd.d FROM : MAHONEY ENUIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:21AM P3 • 2.0 sat, AND VICINITY DESCRIPTION The disposal facility includes approximately 10 acres, which is completely fenced The facility consists of 3 disposal ponds and a concrete unloading pad. The site layout is illustrated in Figure 2, Appendix A. According to the facility owner and operator,pond A was the original pond used when the disposal operation started circa 1982. Pond C located to the west of Pond A was constructed in the 1983. Pond B located to the south of Pond A was constructed in 1991. Engineers certification reports included in the WCDPFIE files indicate that the ponds were constructed in accordance with the design specifications. Clay and bentonite were imported for use as impermeable material to construct the pond liners. Buried discharge pipes extend from the concrete pad unloading area to each pond. The discharge pipes enter the southeast corner of each pond. The discharge pipe for Pond A extends into the pond almost to the base of the pond,where the brine fluids were discharged. For Pond B the discharge pipe discharges at the top of the pond onto a concrete trench which directs the water into the lower pond area The discharge pipe for Pond C extends to the top of the embankment where discharge occurs. Remnants of a plastic liner extend from the discharge pipe to the base of pond C. The liner was used to reduce the amount of embankment erosion where the fluids were discharged into the pond. Pond A covers approximately 73,000 square feet at the top of the embankment. Field observations indicate that the maximum water levels in the pond may have extended approximately 1/3 up the embankment. Therefore,it is estimated that the average depth of fluids in the pond was approximately 5 feet or less covering approximately 25,000 square feet. Pond B covers approximately 175,000 square feet at the top of the embankment. Field observations indicate that prior water levels in the pond may have extended approximately 1/4 up the embankment. It is estimated that the average fluid depth was 5 feet or less and covered an approximate 58,000 square foot area. Pond C also covers approximately 175,000 square feet at the top of the embankment. Field observations indicate that prior water levels in the pond may have extended approximately 1/4 up the embankment. It is estimated that the average fluid depth was 5 feet or less and covered an approximate 58,000 square foot area. At the time of the site visit by t19EC Inc. in January 2000 two of the three ponds were dry(Ponds A& C), a small amount of water was in the central portion of Pond B. The water originated from normal precipitation such as min and snow melt No brine water has been added to the ponds since 1993 or 1994. Vegetation, predominantly wild gasses are present in the ponds. Wild grasses cover more than 65%of each pond area. This indicates that in the slightly more than five years since the facility MEC 2000.114 2 -a holding ponds. Overall, there should be no difference in the materials added to either pond. • Six monitoring wells are located outside the fenced pond disposal area around the perimeter of the site in each direction. Five of these wells are reportedly accessible and can be used for sampling. One well has been plugged. Vicinity Description The inactive Roggen Brine Disposal facility is situated in and agricultural use area. No buildings or residences are within a 2-mile radius of the site. The area is characterized by gently rolling surface topography. Vegetation common to the area includes wild grasses and shrubs. The subject site is located within an oil field in the geologic Denver Basin Oil field production • is common in the area. Within a 200 foot distance from the site there is an oil well to the south and a natural gas well to the north. Also, immediately to the south is an oil well tank battery. Numerous other oil and natural gas wells are present in the area. MEC 2000.114 3 FROM : MAHONEY ENUIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:22AM P4 • 3.0 HISTORICAL BACKGROUND The ROGGEN Brine Disposal facility was permitted and started operation in 1980. Disposal operations ceased in 1993/1994. The majority of the fluids disposed at the site consisted of brine water generated from oil field production. According to the Weld County Health Department records, other types of waste water fluids were occasionally disposed of at the site such as water from leaking underground storage tank cleanup, water from food processing operations, water from contaminated water from the Limon Tornado. The records indicate that request for disposal of these fluids was approved by either the State of Colorado or Weld County. 4.0 PRIOR ENVIRONMENTAL INVESTIGATIVE ACTIVITIES As mentioned above, there are six groundwater monitoring wells located on the site. The facility management installed five of the wells; the other well was installed by the Morgan County Water District(this well has been plugged). The information obtained from these wells was used in developing the sampling analytical requirements for this SAP. Information on the five monitoring wells installed on the site by the facility was obtained/reviewed from data in the WCDPHE files. Quarterly groundwater monitoring was performed on these well from 1986 through 1998. The results of this analysis are compiled in the table included in Appendix B. In 1994 the analysis included three quarters of groundwater sampling for Volatile Organic Compounds(VOCs). MEC Inc. contacted the Morgan County Water District regarding the groundwater monitoring well they installed on the northeast side of the facility. The water district provided copies of the analytical results for sampling performed from 1983 through 1987. The purpose of the well was to determine if contaminants from the disposal facility were migrating from the disposal facility towards their water supply well locations. The Morgan County Water District wells are located approximately 5 miles to the northeast These wells reportedly produce from the Hay Gulch • Drainage Basin aquifer, whereas,the water supply aquifer in the vicinity of the subject site produces from the Lost Creek Drainage Basin aquifer. The analytical results from the Morgan County sampling are summarized in Table 8,Appendix B. Over the period of time no contaminants were detected above regulatory levels. This well is located approximately 25 feet north of the monitoring well 'NE' location installed by the facility. In 1988 Total Engineering Service performed an Environmental Assessment Report for the Roggen Disposal facility. The findings of this report indicated that the "permeability of the pond liners was very favorable". At the tune the 1988 report was prepared only Ponds A and C were in use. The report indicated that the pond A scarps needed to be better maintained and that steps should be done to control erosion. The report also reviews the required groundwater sampling procedures. The report further indicates that"there is no hydraulic conductivity between the Lost Creek Drainage Basin and the Hay Gulch Basin where the.Morgan County Water District's • AMC 2000.114 4 FROM : MAHONEY ENUIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:22AM P5 wells are located". The report further summarizes the history of the site till that date. A report entitled`Roggen Disposal Groundwater Review, May 22, 1993 was found in the WCDPHE files. The author of the report was not identified. The report summarizes the history of the site and also indicates that groundwater monitoring had indicated the possible failure of the Pond B liner. Based on the potential impact, the use of Pond B was stopped/no more water was added No significant environmental impacts regarding hazardous waste has been identified in the prior environmental sampling m evaluations at the site. Numerous sampling events of the groundwater monitoring wells have been performed at the site in the past with no lia7irdous waste or hazardous conditions detected above regulatory standards_ Based on these results the following sampling plan is proposed. The results of the sampling evaluation will be used to develop a closure plan for the site. The groundwater monitoring-sampling results for the years from 1982 through 1998, that has occurred in conjunction with the operation of the facility had demonstrated no hazardous constituent compound impact for the analysis performed. Tables summarizing the historical laboratory sampling are included in Appendix B. Tables have been prepared for each monitoring well at the site. Due to potential conflicting well identification numbering schemes for different years, MEC attempted to organize the data based on geographical location of the wells such as NW, SE, NE, or SW wells. Despite the possible conflicting well identification scheme the historical sampling data indicate that regulatory levels for hazardous constituents were not exceeded. Therefore,the possible past well identification confusion may not be critical in the subsequent evaluation of the site. At the bottom of each table are the possible water quality or groundwater quality regulatory standards that would apply for the analysis performed. As mentioned above, a May 1993 engineering report indicated that the liner for Pond B might not be adequate. The 1991 through 1993 groundwater monitoring for wells#4 and#4B(located east of Pond B)may indicate potential impact associated with the pond liner condition based on elevated TDS,chloride and sodium levels. Also mentioned above, based on the engineering report Pond B was closed and ceased to receive brine fluids and by 1994 the entire facility stopped receiving fluids. Subsequent sampling from 1994 though 1998 indicated a significant decrease in the TDS, chloride,and sodium levels to concentrations that may be considered normal for hard water conditions. • MEC 2000 114 5 FROM : MAHONEY ENVIQONMENTAL FAX NO. : 9? 59544 Aug. 08 2000 10: �. r ro 5.0 PROPOSED CLOSURE SAMPLING RECOMMENDATIONS AND RATIONALE The groundwater quality and condition is the best indication of the environmental impact to the site and offsite areas, from the historical activity at the disposal facility. Potential leaching into the groundwater from the brine water disposal is the most likely primary source of potential contaminant migration from the former disposal pond area. The secondary source of offsite migration would be possible win blown materials from the ponds. Visual observations of the subject site the adjacent property shows that the native vegetation has not been impacted by the former disposal activity. No indications of stressed vegetation were readily observed. Within the former pond areas vegetation has started to grow back and currently covers more than 65%of the ponds. Cattle have grazed on the land immediately adjacent to the former disposal pond areas prior to the facility commencing operations in 1980 and had continued to do so during the disposal operation years through 1994 and has continued since the cessation of disposal activity. There has been no indication that the disposal pond's presence had impacted the cattle. As mentioned, oil and natural gas production and associated wells are located in the vicinity of the disposal pond area. Specifically, to the east and west within 50 and 200 yards of the subject site respectively are two exiting natural gas wells. There are also other wells in the vicinity. Because the most likely potential offsite release of contaminants from the ponds is through the groundwater,the proposed sampling plan pertains to the existing monitoring wells. Specifically, the existing accessible monitoring wells will be sampled. If hazardous conditions are ' encountered in the groundwater then additional sampling of the pond soil liners may be necessary. At the current time no sampling of the former pond soil liner is planned because: 1) No hmdous conditions have been identified from prior groundwater sampling; 2) Vegetation has started to grow in the former pond areas; 3) The Weld County Extension Office will be requested to visit the site and provide recommendations for subsequent reclamation. MEC 2000.114 6 FROM : MAHONEY ENVIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 1.0:24AM P7 GROUNDWATER SAMPLING There are five existing groundwater wells at the site. The wells are located around the perimeter of the property,outside the fenced area of the disposal ponds. More than three years of quaterly sampling was performed at the sire follworng the closure of the ponds in 1993/1994. The wells were last samples in 1998 for the standard monitoring parameters. In 1994,the wells were analyzed for volatile compounds in three separate sampling events. No significant hazardous environmental impact was encountered in the post closure sampling. A groundwater sample will be collected from each well. Each well will be surveyed for an accurate location The depth to water will be measured and the groundwater flow direction will be determined. The conditions of the wells will determine if adequate water samples will be collected. The wells will be re-developed,since,it has been more than 2 years since they were sampled. During the sampling, aquifer parameters such as pH,conductivity,and temperature will be obtained Prior background information,in the Roggen Disposal,Groundwater Review memo(May 22, 1993), indicates that the existing wells are approximately 80 feet deep,PVC cased,and perforated from 20-80 feet The memo indicates that"Drainage from the site is to the northwest, into the Lost Creek Basin". The Total Engineering Environmental Assessment report,dated September 9, 1988,indicate that the original four monitoring wells are 21/2 inch PVC pipe. No formal wells logs exist,but the report indicates that"a gravel pack surrounds the PVC in the lower section with an impervious layer near the surface".. The reports referenced above indicate that the site drainage is to the northwest following the topography. It does not appear that an actual groundwater elevation map had been developed. As mentioned,the current sampling plan will measure the groundwater depth and the groundwater flow direction will be determined. ANALYTICAL REQUIREMENTS As mentioned,historical groundwater sampling found elevated concentrations of some analytes in monitoring wells located east of Pond C prior to 1993. The elevated levels dropped significantly m subsequent sampling after 1994 following the cessation of operations_ The analysis to be performed represent the contaminants most likely to occur from the site activities and at minimum matches the prior laboratory sampling performed. Petroleum compounds may be present because the brine disposed in the ponds was generated from oil field production activities. Total petroleum hydrocarbon(TPH) compound for diesel MEC 2000.114 7 FROM : MAHONEY ENVIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:24AM PB (TEPH), gasoline (TVPH), and oil&grease concentrations (TPH) will be analyzed to determine if hydrocarbon residues are present in the liner. Three groundwater sampling events for volatile organic compounds (VOCs) were performed in 1994. Low concentrations of toluene, ethylbenzene, xylenes and other compounds were detected in two of the sampling events in two different wells. All of the detection concentrations were below regulatory guideline levels as indicated on the tables. The results are summarized in Table 7,Appendix B. The groundwater sampling program will include the same analysis as performed in the past. This information will be used to compare to prior data which is summarized in the tables in Appendix B. The analysis will also be compared with regulatory standards. The groundwater sampling will include a VOC analysis for the two most downgradient wells and only BTEX compounds in the other wells. If VOC compounds,of concern, are detected in the two downgradient well samples then the three remainder wells will also be sampled for VOC and not BTEX. RCRA S analysis was not included in the previous groundwater sampling events. For the purpose of the closure and evaluation of hazardous contaminant potential at the site,the RCRA 8 metals analysis will be included in the water samples. In the tables below the actual number of samples collected will be dependant on the well conditions and the ability to recover water_ GROUNDWA f t;K SAMPLING Analysis __ Method # #of Samples TVPH -GRO 8015 M ...�_.._._ 5 TEPH- DRO 8015 M 5 Oil and Grease 9070 5 Volatiles 8260 2 BTEX 8260 3 RCRA 8 Metals 5 Sodium 6010 Tr 5 Chloride 9252 5 Sulfate 9038 5 Total Alkalinity 5 TDS 5 Calcium 5—_ -� 5 Potassium 5 Iron 5 • • • MEC 2000.114 8 FROM : MAHONEY ENUIRONMENTAL FAX NO. : 9703559544 Aug. 08 2000 1O:25AM P9 The above sampling plan requires the collection of a minimum of 5 groundwater samples for laboratory analysis. The laboratory cost, field sampling costs, and reports documentation for this sampling is estimated to be$6,000.00. 6.0 QUALITY CONTROL PROCEDURES Sampling Procedures The sampling procedures will be performed in accordance with acceptable EPA procedures. Methods and steps will be used to prevent exposure to samplers or the spread of possible contaminants during the sampling procedures. The procedures will also limit the potential for contamination from offsite sources or the cross-contamination from sampling locations. Groundwater Sampling Procedures: 1) Plastic sheeting will be placed around well head surface casing. 2) A disposable bailer will be connected to the nylon string and lowered into the well. 3) MEC Inc. will estimate the amount of water volume in the well bore(based on well size, well total depth,and depth to water). Three casing volumes of water will be removed from each well. If the well is pumped dry, this will be considered as sufficient pre-sampling well bailing/ development. The wells will be allowed to stabilize for a 24 hour period prior to collecting samples. 4) Water samples will be extracted using the disposable bailer, the sampler will be wearing clean disposable gloves_ 4) The sample jar/container will be labeled and placed in the ice cooler. 5) The sample locations will be recorded,and photoaphed. The water quality such as color and appearance will also be recorded. 6) New disposable bailers and"new sampling gloves will be used for each well location. Therefore, equipment decontamination during the groundwater sampling will not be necessary. Documentation The soil and groundwater samples collected will be stored in an ice cooler. The sample ID# and sampling location will be recorded on the chain-of-custody form.. Information pertaining to each sampling location such as soil description,staining,odor will be recorded in the field log book. The results of the sampling will be documented in the Closure Report The results may . necessitate changes to the Closure Plan,submitted on August 8,2000. MEC 2000.114 9 FROM : MAHONEY ENUIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:26AM P10 • APPENDIX A FIGURES & PROPOSED SCHEDULE MEC 2000.114 11 FROM : MAH0NEY ENVIRONMENTAL FAX NO. 9703569544 Aug. 08 2000 10:26AM P11 .. .mss V limb Cm— I.. ..J L. = Soo/Liner Sampling Locations • Monitoring Wells Locations " B3 /1 �=B1 ' ,.........6.---- , i . ■ C2 Fence ` h!D C �' ca ' . Trench'LI i MEM jrili _ Pad r+`Ljgs. L...mmrrumw.aigi....:isuov....e...FuwiiBtIE „.....-aP ... cCCtt Reed �. =M..a•—=me.=MI ri i FROM : MAHONEY ENVIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:27AM P12 APPENDIX B LABORATORY RESULTS SUMMARY TABLES MEC 2000.114 12 FROM : MAHONEY ENUIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:27AM P13 ROGGEN BRINE DISPOSAL FACILITY - GROUNDWATER SAMPLING TABLE l: SE WELL LOCATION -#1 Weil i Tod I I I(Wade Sulfas Toll 'IDS I Paum+ro I iron Nu ,•N I Gdrm®r I COD p�erda 1 ammo as ••Hardroul M gnoli.„ (pain 1(AS0 (WM) ADuhmrn (T 44 (P' I (PPM) (1 ) J 1 Number Date Ph ! crr.�a I(skrtimf (PPM) I ( I I - SE 10/87 1 7.3 : 270 I 180 j 22 i 20 : 5 26 220 1390 ! 6 •10.33 ' - I • I 11/87 16 8 : 750 1 520 ' 118201 2710 I 1560 '6120 1 330 1 27 J I I SE 6/88 ;7.78 1394 r536 , 13.6 ! ' 5.7 I 15 243 •495 : 0 62 ; 0 1 1 1 1 Si 10/88 7.28 -253 ' 83 I 37.7 1 i 5 1 30 4 203 1404 1 0.6 j ND ' - - I 1 SE I 2/89 7.2 1250 ' 170 20 23 1 3 ' 230 1 370 1 5 1 0.6 1 12.5 1 j U • M I 5/89 17 I-- 270 , 180 1 22 ' 22 i 5 250 470 1 6 . 0.8 1 I U J !U ! SE j 8/89 7,2 , 290 ' 190 I 24 22 ; 8 I 250 14401 5 1 3 I I U [ .0 SF, I 12/89 7 6 1 230 ' 160 I 16 1 20 1 5 I 220 1350 1 5 10.8 1 1 U I ;U SE I 3/90 7.7 1260 , 180 I 19 18 I 4 + 230 1 370 1 5 10.321 SE ; 6/90' 7 5 270J 170 I 24 18 7 I 230 1360-rn 0.5 I - r---:-., __ SE 9/90 ,7.6 1 260 1 170 22 19 E 8 ' 230 1 400 ' 6 1I0.64 I _SE 1 12/90 17.5 260 170 22 18 I 9L. 220 I380 1 5 I0.32I I I .1 SE 3/91 7 5 250 160 22 17 6 I � 220 1350 I 5 0.79 I-�� I ! 1 SE 6/91 7.5 250 170 19 17 0 220 '370 5 2.6 I I I ' 1 9191 7.6 230 160 17 1 18 8 230 ,360 6 I 1.4 { I I -- 1 11/91 17.6 240 180 I 19 17 7 210 1 320 5 I 2.4- I 1 1 1 1/92 7 8 1250 I 160 I 22 17 7 1220 1340 5 10 8 I ! 1 SE ! 4/92 7.8 1 250 1 170 I19 _� 17_ 9 2201330 6 0.43 I I 1 1 ST-•t: 7/92 7.8 270 1170 I 24 -• 18 1 14 230 1370 I 5 0.41 I 1 ' 1 E -.7. .-1. 10/92- 7.8 i 270 1 190 ( 19 17 1s _l 220 1370 I 5 10.19 1 T I I I 1 M I 7/93 7.7 1250 170 I 19 22 14 `~ 1200 370 I 6 0 ; I 1 ---1-k---7-7-1/84 7.8 1 200 1 150 12 32 1 15 140 340 4.7 0.08 - 1 SE I 4/94 17.6 11200 l 780_ -100 64 I 790 I 140 1870 9 0.041 I I 1 1 SE I 10/94 7.7 1200 150 12 1 32 1 18 I 140 341 5 0.04(..... I I I 1 SE I 1/95 7.6 200 y150 I 12 33 I 16 _ 130 970 5 0.02 I __ 1 SE 1 4/95 7.8 1_1 70 150 4.9 33 I 18 130 360 4 0.02 I I ISE 1 9/95 7.1 -.-2-'151 160 13 38 1 20 130 400 . 4 0.01 I 1 1 SE I 11/95 7.7 1200 160 9.7 35 I 19 ' 130 370 I 4 0.01 I I I 1 11/96 7 7 320 240 19 43 110 120 1530 I S 10.03 I 1 2198 7.8 1210 170 10- 37 1 21 130 1380 I 4 0 TM 1m6/9(5 8 220 160 _ 15 57 I 22 130 1390 I 4 0.01 _L _ i I 1 SE 8_/96 7.8 1220 170 �12 35 I 21 130 390 4 0.01 I _' _ 1 SE 2/97 7.9 7800 510 68 220 I 57 •310 1760 18 0.03 I T _ _ 1SE 5/97-----5-3-- 540 340 I 49 1140 30 210-1160 5 0.04 I I -_ 1M 8/97 _ 7.4 1060 610 1 110 13�_ 65 __ 440_ _2370 1 9 0.1 __________1_,.„_____I 1 M ' 11/97 7.2 1 230 180 12 - ' 44 I 25 - - 130 1 430 I 4 1 0 1. . ....._.1 1 SE 3/98 8.3 1970 5_80.i._95 1260 i 49 430 120801 10 0.02 I I I ' 1 SE 5/98 7.7 i 750 470 F 68 1190 I 42 .,-_ 280 11510 j_..7. 0.01 I — _w Primary Stamlarc I I I I 5 1 I Io'y S°°°" Str tads I&WI 1250 250 0.3 0.3 Pairictina• Srarmrar I -- 5 100 ;Tye stardoms .-- °lp a I --- FROM : MAHONEY ENUIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:28AM P14 ROGGEN BRINE DISPOSAL FACILITY - GROUNDWATER SAMPLING TABLE 2: SW WELL LOCATION -#6 !Well I I Tom I ^I Viand o,lanx Aurar 1 Tool MS Fbu,mm ;Iron' `irin.N I Carta= I COD! RPM) UM} I(PP:+4) stoma'mnmma Number l�t71 +t om I (FM Icy (PPS cPP1� jO81C ph CzQ)3 I Ciki 1 (PPM) I IO SW3 , 10/87_ 7.6 220 ! 160 15 . 11 8 126 175 310 I 0.12 I i II -7-1 SW i 11/87 c 7.7 550 1390 I 1180 1 74 f 1300 12801 16 1 I ;�-. r-- ----W r 5/88 17 7 570 1410 39 '240 82 • 1 II - ' 285 1530 13 1.3 i .SW 16/88 17.1 1182 ;35.4 j 22.8 i 9.25 f I6 1183 284 i 0.43 0.24 j I SW 10/88 J7.06 1212 I 61 1 90.1 I 8 34.6 I 159 286 1 0.47 ND I t I • 2-SW 2/89 . [7.2 1210 140 117 12 15 1180 320 15 0.7 I 12.4 !U SW 5/89 17 2 210 I 150 I 15 10 5 I 180 390 6 0.5 I I U I I U ' / 17.4 1220 I 160 I 15 11 7 180 320 j 5 1.3 I I U I :U I - SW 12/89 '7 3 200 140 (--14 10 5 170 270 5 1.2 l I U I -' SW 3190 ' 7.6 1 200 1 140 I 15 9 J 5 180 300 1 6 11 " SW 8/90 t 7.6 i 220 1 150 - 17 10 1 4_J -- 170 2901 6 10.62: - I _ t ; SW 9/90 7.8 l 220 1150 17 10 I 4 180 310 I 5 10.49; I I SW 12/90 1 7.7 210 140 17 - 10 j 10 170 300 I 5 0.581 i f SW 2 • 3/91 17.7 1 210 140 16 10 ' 4 170 280 I 5 0.43 1 I I I I _ SW 6 5/91 7.8 190 120 17 11 9 140 128p 4 0.44; -• •__ I 6 9/91 8 180 120 1 10 8 J 4 140 250 3 0.11 • - I 6 11/91 7.8 180 120 ; 15 9 4 140 240 4 0.081 6 1/92 17.9 1 180 120 1 15 9 4 I 140 240 I 4 0.02 I I I 1 .. SW 6 4/92 7.9 180 130 12 10 ! 7 140 250 I 4 6-i4 T 6 7192 7.9 190 120 17 12 5 240 260 4 ;0.07 I I ` 6 8W 10/92 7.9 1190 1130 15 12 I 6 140 270 4 10.04 1 i I r 6 SW 7/93 7.7 200 140 15 22 I 1I 130 330 2 I 0 I I 6SW 1/94 7.8 J 210 150 I 15 33 I 16 140 340 1 4.1 0.17 6 SW l 4/94 7.8 200 150 12 32 I 17 I -130 350 4 0.02 I I 6 10/94 7.7 r200 150 I 12 30 j 18 1 140 340 5 0.041 -" 6 S.V1,/ I 1/95 7.7 200 150 12 32 15 .140 350 I 5 0.02 I _ 6SW 1 4/95 7.9 210 15D 15 34 18 I 130 370 I 4 0.02 -1 8 SW I 9/95 7.8 220 160 I 15 35 j 20 130 400 I 4 0.01 I 8 SW 11/95 7.6 1210 160 I 12 135 I 20 130 360 4 0.01 I _.6 SW I 11/96 7.7 410 280 32 i 42 I 170 120 1640 6 0.0.E 1 6 2/96 7.8 1200 160 10 ; 35 I 19 I 140 370 4 0.01 1 6 �^ 6/96 8.1 1220 160 16 37 1 I 22 j 130 400 J 4 0.02 I 6SW 8/96 7 8 1220 170 I 12 ' 37 J 22 I 130 390 4 0.02 I I I ' 6 2/97 7.9 ( 940 520 100 250 1 64_._j.Y 2050 21 0.061 _ j -1 F 16SW I 5/97 13607.7 L 230 180 12 43 I 24 I 130 420 5 0.02 I I -1 F.. 6 SW 8/97 7.5 11000 570 100 290 63 I._ - 420_2260 9 0.05 _ - I 8 SW 11/97 7.6 1230 180 12 44 25 I 130 1420 4 0.03 r 6 SW 2/98 8µ2I 230 1180 12 44 25 •- 120 L400 4 0.01 I -� 8SW 5/98 7.9 710 450 63 ,170 43 I 260 11460 6 0.01 Prima-y s> I I I I ; 5 I I I s°°°"°y saatweas Ies-Iasi250 250 j 10.3 I I 0.3 _ I �ia s ere Stands-ea r� I I _._ I I 15 1100 I I ) I TDB I ma ` . . i I_--�� J _ BItG I FROM : MAHONEY ENVIRONMENTAL FAX NO. : 9703569544 Pug. 08 2000 10:28PM P15 ROGGEN BRINE DISPOSAL FACILITY - GROUNDWATER SAMPLING TABLE 3: NW WELL LOCATION #5 !Well - --- 4 Sod'am'Cclonde I su1f* I Tout IDS 'PMauan, 'Inn :�iaar•N(udo� FT0U 'phieen+e I ammarra Numbers 1 !HaMamalcsic. I MIgnealum I( OM (I'M � (PPM) (PPM) (PPM) 1 Date Ph C1nw31 m I (NPM) 1 I 1 3 NW ; 12/82 !7.4 1 243 167 i 1 18 1 14 1 10 143 190 ;302 1 6.2 i0 05 I ! j ,- . i • • NW 4 10/87 1 7.6 1 210 1 150 1 15 ; 9.9 I 5_ 1 21 1 175 '290 I 5 ~ 1 1.4 I 1 •Nof I 11/X7 IDRY! 1 ,./lond C 1 I I NW I 6/88 17.541 176 .33.2 I 22.5 ' 7.7 13 1 186 1 301 !_.0.43 0 16 1 1 ;NW 1 10/88 1 1 7.381 187 1 56 29 5 I 4 (8 6 113 1278 Hromrda 1 ND I ! I , .39 ! NW 3 fi 2/89 J 7 21 200 1 140 1 15 ' 11 4 [ 1 180-1320 320 ( 5 1 0.5 11 5 1U 1 NW ; 5189 ! 7 1 210 1 150 15 10 }H. 5 190 360 6 0.6 1 i - 1 (..... I � I I i C !0.47 lu Nw 1 8/89 17.4 1 210 1.160 I 15 10 Y 4 I 1 180 1 330 ( 5 1.6 I 10 4 'Li _I _ ! . NW i 12/89 I7.5I 200 1140 14 10 I 5 1 170 2701 5 1.2 11. U 1 I 1 !NW 13/90 7.5 1200 1140 115 9 13 I 180 '280 15 12.1 U I 1 I NW .,6/90 7.6 1200 1140 115 10 14 170 1270 4 • 10.73 WV _[9/90 7.8 1220 1140 119 10^ 14 I. 170 1300 5 10.73 1 !MN 112190 17.7 1210 ;140 117 10 I6 1 180 1300 4 0.55 I �� 1 ^� . INN 3 13/91 17`7 1200 1130 117 110:5 1 170 1280 14 . __0.6 , I1 _'~ I 1 1 NW 3 6/91 17.6 ,210 1130 119 1-10 5 I 180 1300 5 1 3 9/91 7.9 1200 130 17 10 16 1180 280 5 1.9 1 I 1 1 f 3 " 11/91 7.8 1200 1140 15 10 16 I 180 1270 15 3 1 -• _ _ I ! 5 1/92 7.4-1 1400 1900 1 120 40 i 900 I , 200 I 12 0.07 I NW 4 4/92 17.9 1200 1140 115 10 16 180 2705 0.44' I i NW 5 7/92 7.8 1210 150 15 v17 18 170 306-14- 0.31 --- N 5 1 10192 7.9 1 210 150 15 1 10 6 1 180 290 4 0.04 - /9 W 1 I �' NW 5 I 7/93 7.8 1240 170 17 19 17 1 180 350 I 4 0 I I 5 MN I 1/94 ,7.8 200 150 1 12 33 16 1 • 140-340 4 0.1 1 5 MN 4194 7.6 1400 940 1 110 70 1 980 140 2050 8 0.051 5 NW 10/94 7.7 200 160 I 10 33 18 y *1140 350 5 0.04 I I ! r 1 _• 5 MN I 1/95 7.7-1-2.00 150 1 12 32 15 110 350 5 0.021 15 I I 1 I 5 NW_J 4/95 1 8 200 150 , 12 31 17 I 140 360 4 0.021 IM-N-- 9/95 1 7.6 1 210 150 1 -15 32 1 17 1 130 380 4 0.02 , r 1 15 NW -11/95 7.6 210 1 160 12 37 20 1 130 350 4 0.01 5 NW 2196 7.8 210 160 _ TV 12 35 20 1 140 1380 4 0.01 5 6/96 8.2 I 220 170 12 37 I 21 130 390 4 10,02 +- 1 5 NW I 8/96 7.8 1-220 160 1 I5 34 20 130 390 1 4 10.02 5 I 11/96 7.71 380 12601 29 43 I 1140 120 6001 6 0.03 I ! 1 5 NW 1 2197 9 1010 1560 1 110 270 I 68 370-.22501 24 0.06 j 5 N I 5/97 7,7 290-1-210 19 60 I 27 150 570 j 4 10.02 I 5 NW 8197 17,5 1 990 560 100 280 1 60 I 4110 2190 9 ,10.04 ! I 5 NW 11/97 '7.4 1230 180 1 12 43 1 2. ` -- 130 410 4 ^-A_0 02 • 5-NW 1 2/98 17.9 1 740 450 70 190 1 52 I 410 15201 12 ,0.01 I 1 T 5 NW -T 5/98 7.8 1 770 1480 70 190 1 43 12 7 ,0.01 1 I I 90 1600 Primm uy 15' I I __.5 .or:c 1-y' 18ovrerct3 I as-as J 250 I250 1 I [0.3 __ 10.3 I i Agualnru I smndc,v, I _.._i 15 ;100 1 I I 1 T0S Scx ! •_ I I 40Da —_ I .._...� _.�,_ . I .. i BIG I _r, ' I _ ._. . FROM : MAHONEY ENVIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:29AM P16 ROGGEN BRINE DISPOSAL FACILITY - GROUNDWATER SAMPLING TABLE 4: NE WELL LOCATION-#4 Wei — -- I rim I '9ooliml Olen&I Suifaiol Total m3 wm.umm 'Irmo I Nitar.N I Gan.�i mca '�* (s I immtna Nsumber 'Nudeeal I Num..;(1 A I(t' j(999( (ti •I4i) (I'VJI (>'1 ) (PPf)) Uflte ph Cama :Gk (ppvtl • ' I • , NE 15,13,0 13/86 '7.3 1350 253 I 24 16 59 I 20 270 480 7 0 I h i jPM i I I I I I I I I! NE after I 3/86 -WY 1530 I 1093 110 24 I 980 16 185 12370 j 14 0 I I I _ I I I I NET 11087 17 2 1380 1 710 l 110 24 840 1 18 190 2630 I 12 0.6 i ' I NE 1 1187 17.6 i 550 I <m I 179 1 260 I 180 970 i 7 4.6 I , --� I E 16/88 16.915349 I 168E I 421 i 13956111 324 7800 I 241 0.21 I i I E 11088 16.5 l 2107 1 987 I 500 13139 1 22 1 352 2035 1 29.2 10.1 1 r _J I i NE 4 i 2• 89 VI7 2 570 1 � 51 118 200 1 280 790 I 7 1 1.1 l 2.9 ,1 U 1 NE 1 5/89 17.2 370 130 63 1 16 - 60 I i 270 540 I 5 2.1 I 0.3 iU PE �-8/89 17 2500 I 1€02 220 ! 36 1580 1 40 330 3300 I 7 11.1 + I 0.42 :U 1 I ' • Ni---1. 9• /89 16.9 2600 1630 230 139 1650 127 300 1 3520 I 8 17 9 _ i NE ; 12/89 '7.11 3240 12110 270 1180 2510 230 4580 I 17 14.9 I U lu r 5 NE 13• /91 7 2500 17ID i • I I 190 �89 1800 240 3600� 14 �0.1 1 4A 1 6/91 6 5 63000 660 1 z200 72001 610 lslm I 20 160 . 4A 9191 6.51 7000 4100 700 11900 man 56Q 1@ ) r 19 1-41 I I I i 4A 11/91 16.6 73001 4331 730 1930 5200 r.., X480 1137 .r � 0 I 24 28 ' � 4A 1/92 6.7 c5 00 42°° 630 840 5900 540 11460 j 25 21.� 1 I 4A 4/92 6.6 6600 33313 660 two 5900 500_2500 1 22 6.9 ITNE5 4/92 7.91180 — 13312 1 10 7 I 140 j 250 ! 4 0.1 Y i_� F H?3 7/92 17.8 2370 I 170 24 18 14 230 370 I 5 0.4 NE 10/92 17.6 1700 s° I 280 71 120()1 180 2960 I 12 0.1 ___, 4A _ 11/92 16.7 4500 2700440 iioo 4600 380 8860 18 4.9 r I I NE 4 7/93 I7,4 I900- 1300 150 95 1400 - 140 3220 17 0 I I 4 NE 1/94 7.6 1500 1(00 120 80 1000 150 2100 I 15 0.1 4 NE 4/94 [7.6� 1100 740 87 63 750 130 1580 I 10 0.1 4 NE 10/94 7.6 830 540 70 42 490 140 1540 1 9 0 I - 4 NE 1195 7.7 860 550 75 39 500 140 1300 I 9 0 M I I _ 4 NB 4/95 7.8 800 530 66 38 530 140 1250 1 9 0.1 I- I 1 I 4145 19/95 '7.5 710 460 61 39 410 140 1250 I 8 0 ^ 1 1 I 1 4 NE 11/95 7.5 600 410 46 41 330 130 940 I 4 0 4 NE 2/96 17.8 6108 0 ( 410 49 41 330 140 960 I 1 r { 1 4 NE 16/96 8 500 330 41 42 230 I 130 850 i 6 0 I 1 I �r- 4 NE j 8/96 7.8 1220 I I70 12 ' 39 21 130 400 I 5 0 i l 4 NE j 11/96 7,7 1480 340 34 43 - 230 120 730 1 6 0.1 ( , 4 NE j 2197 7.91 1630 870 I 180 770 660 800 4610 1 99 0.1 4 NE 15/97 7.6 14 1-F-5cri 150 360 79 500 3I50 i 10 0.1 _ 4 NE 8/97 7.6 1 690 410 ! 68 360 48 300 1470 1 7 0 I - ! I 4 NF. 11/97 7.6 980 580 ! 97 280 57 340 2130 1 13 0 1 I _ 4 NE 12/98 8 x460—II! 68 i 66 200 68 460 1480 I 13 0 _ 4 NE 5/98 7,9 1 780 1 480 ; 73 190 44 290--1 1600 I 6 0 I _____JPrimary sl.�� -''° 1 i 1 I _. - 5 ! seiavy se:mares}B.5S I I 1250`250 I 0.3 _ O 3_ 1gfalara I spa° I I I ` _1 _ 5 100 I . I FROM : MAHONEY ENVIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:30AM P17 ROGGEN BRINE DISPOSAL FACBJTY - GROUNDWATER SAMPLING TABLE 5: NE-E WELL LOCATION #4$ _ - [DD '�}eeds�ammMe 1----.1.--T---{ - gu�tm 01 do =wt TI]vs ira+wsm IVa i �'-rt,te I'0(pr l PPN+ I Well _«.I I i ( open `open j(FIN) `nun• j can tin wrn)« I , — � m eta ,�1 I IMN► i Numb8rl Date I Pt) 1 acn3 i alm=i(pill 1 0__L__--1—•1 1 I — 48 10/90 7.1 I I I 290 1 4380 1 1_ ^i 48- 1 1 1 1 380 14240 1 ! !79901 i _-..-. 11190I I I -, 46 I 1 -� !-1--T-40-07-4-0-03 I 4- 187301 1 �_ 1-� s�0 570 1360 x4500 j I79001 20 L0.38 I i --�--+- 48 1 3191 j 6.7 15800 1 j T_1. 3900 T 490 1 520 43001t-ii-3327°,3 1��3 i 0.4 I _:.�_- 1 4B 6191 8.7 1 5300 i ^� j I. 0 390 310 13100 1 ; 380 16950 19 132 ' i I 4g 9181 ' 6.91 4100 i I I I 'i ' 18 7.5 48 11191 ` 6.9 1 3600 �°° I 340 350 2900 j 13754301i 4B 1 6.7 1 3800 1 2423 . 3401/92 260 i 2900 i 345 55901 21 6 I i 48 I 4192 -1721 2800 130D 320 240 1 2100 1 270 43001 13 0.19l� C I _- 1 mw I 270 830 1 2700 -� 470 6240 l 5 `0 88 I 1 4B I 11/92 6.9 3100 _ _ - -r- T- i 1 ' j 1194 I i } 1 I I 4B 1 4/94 17 8200 ) 150 12 I 32 Ir 16 1 130 1340 I_ 4 0.03 I 1 '_ 1 10/94 - j I I' j ( I I __-1/95 _ I - -4B 4/95 8 2'-in 150 15 34 18 130 370 4 10.03 I { I 9195j ► - 1 4A?B 111/95 7,6 , 430 290 140 40 190 130 1550 11 5 0.01 [ - 4 A 7 B 1 2/96 7.8 1 930 1 600 83 j 40 560 1 - 1140 13801 9 0-021 I I _� 4 B 6/96 8 440 1 300 34 43 190 1 130 790 j 6 0,02 I h 1 4 B 8/96 7,8"� 700 370 SO 41 410 120 12301 8 0.02 - 1 J 11/96 I _ _ J I 1 4 B 2/97- 17.9 I 950 1530 100 260 1 65 380 2090 22 10.04 1 I 4 A 5197 7,7 600 360^ 58 j 150 36 230-1280 5 0.05 J 1 _ 4B I 8197 7.7 1060 590 110 ( 300 64 1 430 12340 9 0.02 1 _ ,r. 4 B 11/97 7 6 520 440 19 220 48 330 11620 11 0.05 i 4B I 2/98 8 860- 500 87 290 i 41 390 11800 9 0.02 ( I I I 4 B 5/98 7.7 R10 510 73 _200 1 45 I if 300 16801 7 0.01 1 I _. _ _.- I �.J i I I �5 ' ,� is _J j 1 „ I e -1250 z� I s 3 I ; :0.3 j **ultra Istars+res—f- I I I TDB swans I n --- ( j :Q I 125 L- ' 1 . 4 B 4/6/94 Toluca*e*uae i r woo Note all of the indicated zeos680 xybse 9J t0000 concentrations are below i actogribeszesoo 0.7 7 the detections limits as L.34-Tri..c c 2 t.2.4Frnmeey1bcattae 7 s indicated by the'T qualifierl a-sep®eaane 0.7 1 after the concentration J S baltanco 6 J amounts. Note of the tmdecs c 12 1 detected concentrations Dodccsae 12 1 Tridcoaae 13 1 i none are above regulatory 7,-Itictiolospiatalcoc 6 1 i standards. 4 B •8/17/94 �_.... .___ INo Sample --_....._._ 4R '12/14/94 ND ND=Lcss than stated laboratory detection iiaut N/A=Not Analyzed I. indicates concentration that is estimated below analytical dela:t►m limit. -"RCM : MAHONEY ENVIRONMENTAL FAX NO. : 9703569544 Aug. 08 2000 10:30AM P1E ROGGEN BRINE DISPOSAL FACILITY - GROUNDWATER SAMPLING TABLE 6, SAMPLING RESULTS WITH UNKNOWN OR CONFLICTING WELL LOCATION INFO Sodta mlandc Sa1Gx Tool i TDS Pans= Oral ptlzaro-Ni CAdrm� ODD phards i ammarsa Well i kluctr.r�w,l ,I m 1 can ( 4) AIk1b �Y I ( 1 c� (PPM) I U'31 I iNumber lame I Ph I P`� .Ic n i m M) 1cr�nI � I --i___ V33 <001 '0 1 ` 12/82 7 2 1252 I 170 1 20 16 1 5 25 220 ' 327 I 5.9 0.06 i 13 f ; I I 25 220 327 5.9 0.06 [ 9 j j 55 w i<.00110 i 12/82 ,7 1I-218 I 149 , 17 I 11 6 190 302 6-2 j 0.05 I 10 134 i<001.._____r_____, .---- I3 12./1- --1-77.4 i 243 r167 1814�I 10 43 I ti ( •- 14 f 12/82 1 7.4 1246 159 ' 21 115 7 24 210 1323 6275-6-I 11 I 183 i<001 .0 8 8 1 _.II r I 5/8330 { 240 I 22� I230 130 `' j 380 11000 j 2 1 11 I ` 2 5/88 1 7 5 1 360 410 37 74 230 190 11100 I 3 ,0.65 I I 1 , ��' I 210 sioo 620 moo j 650 87 1 3 5188 `6 6 y X060 2180 { 9300 —�— 1-4-• 5/88 17 6 I 2060 940 i 270 840 280 190 '5000 9 •Or 38 { i I „__I 5 5188 7.5 320 1 260 15 500 450 610 2130 170 3.8 1 I 6 5/88 1i.,7.7 1570 I 410^t 39 240 I 82 285 1530 13 i 1.3 i 4 1 3/93 i 16 i 33 13390 .I j 1.5 _ I2 3/93 l _ 17 13 I 280 0.14 I r3 3193 ' ' 14 240 730 6,4 1 130 2000 3840 {0_ 07 _ I I5 3/'J3 I _ _ I- Primary 8bndaries _ ! I .. so�,sy -IStorchivis fists - 250 250 0.3 1 {0.3 I /Vann s •• .5 100 i I TD5 �� 400« I BKG * Well location not clearly identified, Well #2 not used in lattersampling. 0) it a E TABLE 8: MORGAN COUNTY WELL SAMPLING ) m _ �— 5o9t c1i ies sass 't<,1 '1D5 Poad= um ctaba� BOirm Biian .9kI& 'HbYC•N c&,3i t )4tH ca)Ai ds Raisurij Wetl--- — v Tad m Q'7 1) 0'?M) 02144 "DPW ( 0 O'Pa0 'GPM CPPM) ATMs avow O'PB1 ��W�t) m Number Dale Ph Ho,._Wei=M �°M) `P�" / m 10183 7.8 53 17 18 4 .12 442 3 '0.1 0 229 <10 <10 9,6 22.6 CO 4184 8.2 t 49 —.5-90 3 18 431 '4 0.03 '0 239 <10 Z-0—12 _ rn 7184 8.2 3i 14 18 4 12 510 '3 0.02 '0 248 <10 <10 9 ' i Q 10184 8 44 14 16 4 18 462 12 <.01 0 " 23t <10 <10 9 • 1185 7.139 +115 4 48 199 '3 k.01 -F . 0.05 5 <.01 7/85 -18 1 12 8 370 4 c.1 <.02 <.04 30 —' 124 Minute 7/87 7.6 310 103 38 780 3 21150 10 <.03 0 220 .<.1 <10 17.2 384 im_ rai, 7/87 7.5 320 124 47 906 3 263014 '<.03 0 203 )<.1 <.03 7.2 1— 380 12m v —— — r- - 4-- . � --. __________i____ . - . . m 1n in 9,.0 M m rnN Z X • a IL J a I- Z W Z 0 W D Z W r W \ I Z •,\ 0 I E 1; E Li MEC 1999.168 1 U- IL • i r FROM ' MAHONgY ENU I BONN NTAL F`GX HO. : ' 1(%356y544 Hug. Ub cbue 1 r+• =r • r • ywOW?ENYfmn051Mi CONSUL7V JAPL IAu(IaAKYVE =LIZ COL sr. August 8,2000 °""°J"`" ""'1.' Ms. Cinch Etcheverry Environmental Specialist Weld County Department of Public Health and Environment 1555 N. 17th Avenue Greeley,Co. 80631 and Mr.Roger Doak Colorado Department of Public Health and Environment Solid Waste Management Unit HMWMD-B2 4300 Cherry Creek Drive South Denver,Colorado 80246-1530 RE: Roggen Disposal Closure Plan,Development Standards USR-481:81:27). Dear Ms. Etcheveny and Mr. Doak • The following closure plan is prepared for the Roggen Disposal facility located approximately 2 miles east of Roggen south of Interstate 76. CURRENT CONDITION: There are three existing pond structures at the site. At the time of recent site visits in January and June 2000 standing water was observed only in one pond(Pond C). The amount of water observed in June covers approximately 100 square feet and is only a few inches deep. Wild grasses are growing in each pond. The site is fenced with gates on the east and west side on the gravel road,which passes through the south side of the site. Dark brown stained brine/sludge residue is present in various places in the ponds. The primary concentration was observed to be situated around the pond approximately 1/3 up the pond embankments at a level assumed to be the common water level in the ponds. The concrete unloading pad on the south side of the property is still in place. The buried piping extending from the unloading pad to the ponds is also in place. Equipment such as the holding and settling tanks have been removed from the unloading pad. A partially buried concrete vault,used for storing skim oil,was located on the north side of the pad. This concrete ----,--, John Mahoney • F I LE J'Jo.407 08/16 '00 16:38 I D:WELD CTY GOVT FAX:9703520242 PAGE 2 0[3/16/2000 12:16 S05-239-7377 LESAGE LAW OFFICE PAGE 01 LAW OFFICES MICHAEL T. LESAGE R A LAW CORPORATION IRO (9!n brrealeT MICNAKI_T. LESkifi P.o Oox ao • PASO R0BLES, CAL160RNIA 0 93441 ,08 1 ' TgLtPHONQ (409) #11044194 0 be FAX No. (805) 239-7377 DATEAugust 16, 2000 HEMP TO; Lae Morrteon, Esq. FAX No. : (970) .352 -0242 Attention: RC; Roggen .Disposal Hearing massage: ' -- Since , /"7", M UU L T. Le8 ---- pages to follow,. excluding this page. Origirnal. L will will not follow by mail. . Tf this telefax iS incomplete or illegible, please call (805) 238.3484. F I LE f to.407 08/16 '00 16:38 ID:WELD:WELD CTY GOVT FAX:9703520242 PAGE 1 00/16/2008 12:16 866--239-7377 LEsArr LAW OFFICE PAGE 62 • MICHAEL T. LESAGE � Al-ramify AT LAW 0nO 18Tw grrRIC T P.O. SOX 30a A► PAAQ Nomiu fit, CAurORNIA 03447-0300 TELEPHONIR Wm) $3ft34134 P t..• FAX «©S) 54si1-7877 August 160 2000 Lee Morrison, Esq. Fax #(970) 352-0242 Weld County Attorney Weld County P.O. Box 758 515 10th street t reeley, Colorado 80632 • Re: Rtxlgern Disposal Hearing Dear Mr. Morrison: Pursuant to our telephone ' discussion of this date, please accept this letter as a request for a continuation of the now scheduled hearing to Monday, September 11, 2000, or to a later acceptable date. Z will L'edBt to you today John Mahoney's draft report re reclamation at the Roggen Disposal mite. upon review of this draft report, staff may conclude that it adequately addressed their concerns and that no hearing is required. Also as we indicated, additional time is needed for reclamation recemlmendatioris by the Weld County Extension Office. 'hank you for your consideration. Sincerely, ar)ICW: 01/7t/'/ MI 'r. L,eSAGG MM:soh soh cc: Mike Cervi John Mahoney Poe -It"Fax Note 7671 Dal ' ) !grab P (7 Fro c. co Phone 1! Phone li t/` ? c- �[ y l Fix n Fax H FILE,No.407 08/16 '00 16:38 ID:WELD CTY GOVT FAX:970352C242 PAGE 3 08/16/2000 72:16 1 === COVER PAGE ^-__ TO: FROM: LESAGE LAW OFFICE FAX: 805-229--7377 TEL : 8@5-23e-3484 COMMENT: CONFIDENTIAL Hello