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Home My WebLink About20051738.tiff SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL REVIEW (USR) APPLICATION FOR PLANNING DEPARTMENT USE DATE RECEIVED: RECEIPT#/AMOUNT# /$ CASE#ASSIGNED: APPLICATION RECEIVED BY PLANNER ASSIGNED: Parcel Number: 1309 05 000023 Legal Description: Pt. of the NE4 of Section 5: Township 2 North, Range 66 West Flood Plain:None Zone District Agricultural (A) Total Acreage:269 Acreage for USR: 80 Overlay District: None Geological Hazard:None FEE OWNER(S) OF THE PROPERTY: Name: The Bluffs Phone: (303)426-0750 Address: 5305 W. 86th Ave. Arvada, CO 80003 APPLICANT: Name: Ray Edmiston, owner of Aerial Sprayers, Inc Phone: (720) 201-8808 Address: 5112 Weld County Road 32 Longmont, CO 80504 AUTHORIZED AGENT(See Below:Authorization must accompany applications signed by Authorized Agent) Name: Lauren Light, AG and LANDPROfessionals, LLC Address: 4350 Highway 66, Longmont, CO 80504 Phone: (970) 535-9318 Email: Llight@agpros.com PROPOSED USE: Crop dusting and spraying operations facilities, including 960 S.F.apartment, (includes hangars, landing strips,fertilizer storage facilities,insecticide storage facilities,fuel storage facilities and offices accessory to the crop dusting or spraying operation). Section 23-3-40.B of the Weld County Code allows Agricultural Service Establishments primarily engaged in performing agricultural, animal husbandry or horticultural services on a fee or contract basis, including: crop dusting or spraying operations facilities (includes hangars, landing strips, fertilizer storage facilities, insecticide storage facilities, fuel storage facilities and offices accessory to the crop dusting or spraying operation)as a Use by Special Review in the A(Agricultural) Zone District. I(We) hereby depose and state under penalties of perjury that all statements, proposals,and/or plans submitted with or contained within the application are true and correct to the best of my(our)knowledge. Signatures of all fee owners of property must sign this application. If an Authorized Agent signs,a letter of authorization from all fee owners must be included with the application. If a corporation is the fee owner,notarized evidence must be included indicating that the signatory has to legal authority to sign for the corporation. \� O Signature: Owner or Authorized Ag t Da e 2005-1738 - . AGPROfessionals, LLC LANDPROfessionals, LLC 4350 Highway 66, Longmont, CO 80504 Office: (970) 535-9318 Fax: (970) 535-9854 , w r [`veld aim') LONGP,IONT OFFICE December 29, 2004 JA 2 i LE'" Application Submitted F;, To Whom it May Concern We have contracted with AGPROfessionals, LLC / LANDPROfessionals, LLC to process all work related to a Use by Special Review application to be filed in Weld County. AGPRO/LANDPRO is authorized to represent Ray Edmiston, John B. Villano and Josef Guetlein throughout this process. Ray Edmistod :4; Villano /) Josef Guetlein This amendment is to incorporate a private airstrip in conjunction with the crop dusting operation. The following information pertains to the private airstrip: Planes will only fly during daylight hours. We do not anticipate more then 6 private airplanes stored on-site at maximum usage of the strip. They will not be flying at the same time. Planes will fly mainly during summer season. We estimate an average of 2 takeoffs and landings a day during prime flying season from April to October. November to March there could be an average of 1 takeoff and landing per day. Friends and family may fly in to the airstrip but they will not store their planes on- site. There will be 3 crop dusting planes that will be stored on-site and 2 private planes on-site at start-up of the facility. If the crop dusting operation is discontinued there is storage for 6 private planes in the hanger. There will not be more then 6 planes stored on-site at any time for private use. The private airstrip will not change the layout of the site plan or configuration of the structures on-site. If the crop dusting operation is discontinued the private airstrip would be a less intensive use as the number of takeoffs and landings would be drastically reduced. EXHIBIT 1 t- AR 2050213 Rector(' ' g' 1109 • 1REC O2050213 M04/17/86 12:29 86. 00 1/002 F 1655 MARY ANN FETJERSTEIN CLERK & RECORDER WELD CO, CO Recep, • STATE or COLORADO, 1l1 County of Weld 1 ss. Josef Guetlein of the County of Weld ,in the State of Colorado,being first duly sworn, upon oath deposes and says that The Bluffs - A General Partnership is the name under which a business or trade is being carried on at 5305 W. 86th Avenue Arvada, CO 80003 in the County of Jefferson ,and State of Colorado. The full first names and surnames and addresses of all persons who are represented by the said name of The Bluffs are as follows: Alexander Guetlein 5305 W. 86th Ave., Arvada, CO 80003 Jerry Hunter 6636 Reed Ct. , Arvada, CO 80003 Joe Broncucia 120 E. 70th Ave. , Denver, CO 80221 Boyd & Mildred H. Brown Box 36, South Fork, CO 81154 See Additional Partners on Reverse Side The affiant is (one of the persons)(the person)'carrying on said business or trade under the above name. (72 )' 2,4-047-14-v- i l/n ?Subs*,sgh`.•. swo?n to before me,this _ y of ` 19 ` A pi t-fit a -` �2S*,omrrflssion,bx;i)res /f /9P( • 1F OF G0 • \••••• Wittress my,hand and official seal. " vt(.!Q,4 / ,rt. *Strike as applicable / Nome).Public. NOTE—The foregoing Affidavit must be filed in the county in which any person,partnership or association of persons does business or carries on a trade in the State of Colorado under any other name than the personal name of its constituent members. The Affidavit is to be reined for any change, whether by withdrawal, additional, or otherwise,of the parties represented by the name.Unless filed suits for collection of debts may not be prosecuted and — failure will warrant a misdemeanor charge which upon conviction carries a fine of not less than$10.00,nor more than $300.00.C.R.S.7-71.101(1978)et seq. No.298. TRADE NAME AFFIDAVIT.14e.78— erudford Publishing.Sal W.6tb Are..Lkew*Pd,C0110214—.1303)1.134900—242 ( '� Q 0 .N M a rt cO n H7 2 0 2 a a ti I `" 'n n - e n n O O O •C o n O .C O 1 _T p Q ^ Z C . ~ � ° •^ E C) 5 ° ° n '?' n 'e O S v R N n O r O 0: tzi n o r T i > c ,"p ° 5 z O I. 7 C. r a O R ' J H L Fy CO F Q ; J A 3 L d V 9.-3 • . F. Brown Windle 1520 S. Marengo Ave. , Pasadena, CA 91106 S.P. LaBriola 6801 Ruth Way, Denver, CO 80221 Kim Harrold 6075 Brooks Drive, Arvada, CO 80004 Randy Busing 6100 Vivian St. , Arvada, CO 80004 Dana G. Estep 1342 Lipan Drive, Denver, CO 80221 Steven J. Crischow P.O. Box 1271, Arvada, CO 80001 Dorothy M. Hunter 6636 Reed Ct., Arvada, CO 80003 Toni Lee Broncucia 120 E. 70th Ave. , Denver, CO 80221 Terry Broncucia 120 E. 70th Ave., Denver, CO 80221 Paul C. & Rosemary V. LaBriola 6801 Ruth Way, Denver, CO 80221 Gary Myers 2120 S. Devinney St., Lakewood, CO 80228 Margaret R. Logan, 570 S. Pierce St., Lakewood, CO 80226 David J. 0hlendorf 570 S. Pierce St., Lakewood, CO 80226. Robert Alan Stanpfl 7870 Irving Street, Westminster, CO 80030 Josef Guetlein 5305 W. 86th Ave., Arvada, CO 80003 John B . Villano P.O. Box 8383, Denver, Colorado, 80201 B 1109 REC 02050213 04/17/86 12:29 $6.00 2/002 F 1656 MARY ANN FEUERSTEIN CLERK & RECORDER WELD CO, CO N Lo 0, O. 0 m 6 C O ,. 0 O 6 W > Pr '��171717 a a +I• . o O E+ E 0 ARTICLES OF GENERAL PARTNERSHIP THE BLUFFS Page 5 unless and until there shall be delivered to the partnership an instrument, in writing, subscribed by both parties, which assigns all right, title and interest; directs that all further distributions or profits, income and return of contributions of capital interest be paid to the assignee; and that such assignee accepts the interest subject to all of the terms, assignments and conditions of the partnership agreement and any amendments thereto to the date of such assignment. D. Anything in this Agreement contained to the contrary notwithstanding, two-thirds (2/3) in interest of the general partners may waive any and all restrictions imposed by paragraphs A through C hereof relative to sale, transfer, assignment, pledge, encumbrance, mortgaging or other hypothecation of an interest. XIII RIGHTS, DUTIES AND LIABILITIES OF PARTNERS All of said partners will at all times during the continuation of the Partnership diligently employ themselves to the extent necessary in the business of the partnership and carry on the same for the greatest advantage to its interest. Each partner shall be entitled to current reimbursement from the partnership's assets for all costs and expenses incurred by it while acting on behalf of the partnership. It is further agreed that the partners may be engaged in other and similar business ventures exclusively for their own account, and neither the other partners nor the partnership shall have any right whatsoever in such other business ventures. It is further agreed by and between the parties that no partner shall be compensated by the partnership for his time or services (with- the exception of the Fifty Dollars ($50.00) per month total management fee to John B. Villano and 'Josef Guetlein or any other partner who may be designated as a Managing General Partner in the even John B. Villano and Josef Guetlein should become incapacitated or in any manner unable to continue the management, including their removal) without the consent of two-thirds (2/3) in interest of the general partners in the partnership. XIV SURETYSHIP OBLIGATIONS The partners agree, one with the other, that they are not and shall not during the length of this contract, without the written consent of the other partners enter into any bond or become surety, security, bail or co-signers for any person, persons, co-partnership, or corporation, as to their partnership interest, or knowingly cause or suffer to be done anything whereby the partnership property may be attached or taken in execution. J� { � ! ,Yrq} John B. Villano and Jo4e uetlein are hereby •esignated as Managing General Partners of the Partnership except that the sale, exchange, transfer or purchase of Partnership property, shall require a consent of two-thirds (2/3) in interest of the general partners. The Managing General Partners may be replaced by two-thirds (2/3) in interest of the General Partners of the Partnership interest. A total management fee of Fifty Dollars ($50.00) per month shall be paid to any designated Managing General Partner or partners for services rendered. SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL -- REVIEW (USR) QUESTIONNAIRE The following questions are to be answered and submitted as part of the USR application. If a question does not pertain to your use, please respond with"not applicable",with an explanation as to why the question is not applicable. 1. Explain, in detail, the proposed use of the property. The applicant owns Aerial Sprayers,Inc.,which has been in business since 1960. The use of the property will be for the operation of the business, which is crop dusting and spraying. There will be a total of five planes located on the property. Structures will consist of a hangar,office, 960 s.f. apartment and a storage building. The applicant currently has 80 acres under contract that will be surveyed and purchased upon approval of this Use by Special Review. The planes will average 10 take offs a day from April to September and 2 take offs a week from October to March. If the wind speed is above 10 mph the planes will not fly. Depending on the number of jobs the planes will be airborne from 20 minutes to 2 hours. Takeoffs will primarily occur to the west and landings to the east. 60 percent of the business is spraying corn; remainder is wheat,barley,alfalfa and a few vegetables. 2. Explain how this proposal is consistent with the intent of the Weld County Code,Chapter22(Comprehensive Plan). Section 22-2-60.A.A. Goal 1 -Conserve agricultural land for agricultural purposes which foster the economic health and continuance of agriculture. Section 22-2-60.A 1.A.Policy 1.1 —Agricultural zoning will be established and maintained and promote the County's agricultural industry. Agricultural zoning is intended to provide areas for agricultural activities and other uses interdependent upon agriculture. Section 22-2-60.G A.Goal.7— Protect agricultural uses from those uses which hinder the operations of the agricultural enterprises. Section 22-2-60.G 1.A.Policy 7.1 —The County recognizes the right to farm. In order to validate this recognition, the County has established a statement which should be incorporated on all pertinent land use plats. This proposal is consistent with the Comprehensive Plan as described in the goals and policies outlined above. Aerial spraying operations are specifically called out in the right to farm statement. Various agricultural operations are dependent upon crop dusting which also ensures the economic health and continuance of agriculture. 3. Explain how this proposal is consistent with the intent of the Weld County Code, Chapter 23(Zoning)and the zone district in which it is located. The proposed use is consistent with the intent of the A(Agricultural)Zone District. Section 23-3-40.B of the Weld County Code states: Agricultural Service Establishments primarily engaged in performing agricultural, animal husbandry or horticultural services on a fee or contract basis, including: crop dusting or spraying operations facilities (includes hangars, landing strips, fertilizer storage facilities, insecticide storage facilities, fuel storage facilities and offices accessory to the crop dusting or spraying operation)are allowed as a Use by Special Review in the A(Agricultural)Zone District. The proposed facility adheres to the section noted above which is consistent with the intent of the agricultural zone district. 4. What types of uses surround the site? Explain how the proposed use is consistent and compatible with surrounding land uses. East—Crop/weeds- no structures West—Crop(corn)-no structures North—Dry land- no structures South—Crop (corn)—no structures There are several gas wells and tank batteries in the area.The proposed use is consistent and compatible with surrounding land uses, which are comprised primarily of crop production and dry land. 5. Describe, in detail, the following: a. How many people will use this site? There will be four employees,the owner and his wife and various delivery drivers such as pesticide and gas trucks. b. How many employees are proposed to be employed at this site? Four employees plus the owner and his wife. c. What are the hours of operation? The business operates primarily seven days a week, March to October from 4:30 a.m. to 8 p.m. However, there may be deliveries received at off-hours and planes may fly November to February under special circumstances. d. What type and how many structures will be erected (built) on this site? An 80 x 90 foot hangar,20 x 48 office and a 20 x 48 apartment that will be built in the hanger building above the office. A 24 x 30 foot storage building. A 24 x 3200 foot asphalt runway. Four 5,000 gallon above ground storage tanks,two tanks for water and two for jet fuel. Locations are delineated on the accompanying plat. An SPCC plan will be completed for fuel storage if necessary. e. What type and how many animals, if any, will be on this site? None that are associated with the business. f What kind (type, size, weight) of vehicles will access this site and how often? Employee vehicles will access the site during work hours. Delivery trucks for pesticide and gasoline. There will not be a noticeable change from the oil and gas use that is occurring at this time. g. Who will provide fire protection to the site? Platteville Fire Protection District h. What is the water source on the property? (Both domestic and irrigation). A well will be applied for through the State Division of Water Resources if this application is approved. What is the sewage disposal system on the property? (Existing and proposed). An individual sewage disposal system will be constructed in accordance with all applicable codes. j. If storage or warehousing is proposed, what type of items will be stored? Pesticides will be stored on site in accordance with Colorado and federal regulations as required by SB 90-126.A copy of the regulation has been provided to Weld County Planning,Weld County Health Department and the Fire District. The state requires containment for pesticide mixing and loading. An engineered designed loading facility will be constructed which must be approved by the Colorado Department of Agriculture. 6. Explain the proposed landscaping for the site. The landscaping shall be separately submitted as a landscape plan map as part of the application submittal. No landscaping is proposed, as the operation will be located off of the main road. 7. Explain any proposed reclamation procedures when termination of the Use by Special Review activity occurs. Should the facility be permanently discontinued it would be marketed under applicable county planning and zoning regulations to its greatest and best use. 8. Explain how the storm water drainage will be handled on the site. See attached drainage information. 9. Explain how long it will take to construct this site and when construction and landscaping is scheduled to begin. Construction of the airstrip is anticipated immediately upon approval of this application. It will take approximately 4 to 5 months to complete construction. No additional landscaping is proposed. 10. Explain where storage and/or stockpile of wastes will occur on this site. There will be no waste generated from this site. United Agri Products (UAP) delivers and picks up all chemicals and containers. UAP is located at: 240 22nd Street,Greeley,CO 80631. The chemical containers are re-useable and returned to UAP when empty. Lane Aviation - Air tractor Models AT-402A & AT-402B — Page 1 of 2 Home About Lane I Aircraft Sales Parts Sales Pilots Lounge Con AT -401BIAT -402IAT - 502IAT - 602IAT - 802 • *8. 'SYf'k+yxw+4tik caw r _� J � a GI n t l R;rl r The AT-402A is a lower cost turbine ag-plane, ideal for first-time turbine owners. It has superb handling characteristics that make it a joy to fly and the productivity that makes profits. Hopper capacity 400 U.S. gallons Engine type P&W PT6A-11AG Engine H.P. and R.P.M 550 @ 2200 Take-off weight 8600 lbs. Landing weight 7000 lbs. Empty weight with spray equip. installed 3930 lbs. Useful Load 4670 lbs. 170 U.S. gallons (216 gal. Fuel capacity opt.) Wing span 51 ft. The AT-402B is a 400 gallon turbine that utilizes the 680 horsepower PT6A- 15AG engine for extra performance and heavier loads Hopper capacity 400 U.S. gallons http://www.laneay.com/airtractor/at-402.asp 1/21/2005 Lane Aviation - Air tractor Models AT-402A & AT-402B Page 2 of 2 Engine type P&W PT6A-15AG Engine H.P. and R.P.M 680 @ 2200 Take-off weight 9170 lbs. Landing weight 7000 lbs. Empty weight with spray equip. installed 3930 lbs. Useful Load 5240 lbs. Fuel capacity 170 U.S. gallons (216 gal. opt.) Wing span 51 ft. Home I About Lane I Aircraft Models I Aircraft Sales I Parts Sales I Pilots Lounge I Aviation Links I ContE http://www.laneay.com/airtractor/at-402.asp 1/21/2005 Air Tractor AT-402 — Page 1 of 2 . . . Air Tractor AT-402 . . . The 402A is a lower cost - turbine ag-plane, ideal for first- time turbine owners. It has superb handling characteristics that make it a joy to fly and the Mr Tractor's 400-gallon productivity that makes profits. no turTractors ft ; •_ have enjoyed a proud 402A Pilot Report n toyofservoe beginning with the introduction The 402B 400 - gallon of the in 1980. turbine utilizes the 680 horsepower PT6A-15AG engine for extra performance Vin"3' yt '` iY and heavier loads. "'-�,�� 402B Pilot Report Today, Air Tractor L4 p. �f See below for 402 specs. proudly offers the AT-402A and 4028, ',. FAA approved ata 7,000 lb. gross weight. Quick turn times... superior >! visibildy... faster ferry speeds. No wonder the AT-402A &AT-402B are the ag planes of choice. Air Tractor AT-402A Hopper capacity 400 U.S. gallons Engine type P&W PT6A-11AG Engine H.P. and R.P.M 550 @ 2200 http://www.airtractor.com/models/402A/ 1/21/2005 Air Tractor AT-402 Page 2 of 2 Take-off weight 8600 lbs. Landing weight 7000 lbs. Empty weight with spray equip. installed 3930 lbs. Useful Load 4670 lbs. Fuel capacity 170 U.S. gallons (216 gal. opt.) Wing span 51 ft. Air Tractor AT-402B Hopper capacity 400 U.S. gallons Engine type P&W PT6A-15AG Engine H.P. and R.P.M 680 @ 2200 Take-off weight 9170 lbs. Landing weight 7000 lbs. Empty weight with spray equip. installed 3930 lbs. Useful Load 5240 lbs. Fuel capacity 170 U.S. gallons (216 gal. opt) Wing span 51 ft. http://www.airtractor.com/models/402A/ 1/21/2005 G RCUh MAT ER PROTECTION C fez U Q 0 000 00.. .. V C9 Q Plans For Small To Medium-Sized Agricultural Chemical Bulk Storage & Mbc/Load Facilities Approved by the Commissioner of Agriculture to fulfill the requirements of the Agricultural Chemicals and Groundwater Protection Act (SB 90-126). If there are questions concerning these plans, please contact: Lloyd R. Walker Extension Agricultural Engineer Department of Civil Engineering Colorado State University Fort Collins, Colorado 80523 (970) 491-6328 Some figures, tables, and text are reproduced with permission from: Designing Facilities for Pesticide and Fertilizer Containment MWPS-37;1st edition, 1991 ©MidWest Plan Service Ames, Iowa 50011-3080 Pursuant to Part 6.3 (b) and 16.3 (b) of 8 CCR 1203-12 (1994) for commercial fertilizers and pesticides, I hearby approve the Colorado State University Department of Civil Engineering, as a source of design plans. A eputy Commissioner Don ment At Colorado Com issioner of griculture /D/4 Dt--- Date Published by Colorado State University Cooperative Extension in cooperation with the Colorado Department of Agriculture. Issued in furtherance of Cooperative Extension work,Acts of May 8 and June 30, 1914, in cooperation with the U.S. " lepartment of Agriculture, Milan A. Rewerts, Director of Cooperative Extension, Colorado State University, Fort -Jollins, Colorado. Cooperative Extension programs are available to all without discrimination. To simplify technical terminology, trade names of products and equipment occasionally will be used. No endorsement of products named is intended nor is criticism implied of products not mentioned. TABLE OF CONTENTS _ •Overview 5 11 •Concrete Facilities 7 •Mix/Load Pad Design 11 •Secondary Containment Design 20 •Steel Secondary Containment Design 29 •Secondary Containment Design for 10 Ft. Diameter Tanks 30 ty •Secondary Containment Design for 7 Ft. Diameter Tanks 33 •Connection Details 36 11 11 f� LI • GROUNDWATER PROTECTION PLANS FOR SMALL TO MEDIUM-SIZED 00 AGRICULTURAL CHEMICAL 000 0 BULK STORAGE & VAvA A.) MIX/LOAD FACILITIES The Agricultural Chemicals and Groundwater Protection The design plans cover the following topics: Act (SB 90-126) requires that all agricultural chemical I. Overall Facility Design users covered by the bulk storage and mix/load pad regu- II. Concrete lations construct approved facilities. The design of such IIA. Mix/Load Pad Design facilities must either be signed and sealed by a Colorado IIB. Secondary Containment Design registered professional engineer, or be from a source III.Steel Secondary Containment Design approved by the Commissioner of Agriculture. This docu- IIIA. 10 Foot Diameter Tanks ment contains generic design plans for small to IlIB. 7 Foot Diameter Tanks medium-sized facilities that are approved by the IIIC. Connection Details Commissioner of Agriculture. The following plans present design elements required by For concrete, there are two designs presented for liquid SB 90-126. However, each section, as noted, also has agricultural chemical mix/load pads, one design for a dry recommended elements. These elements are ideas to agricultural chemical mix/load pad and one design for improve the performance of the facility.A step-by-step secondary containment.All of these designs are expand- implementation process also is included with the designs. able so as to fit the particular size requirements of the operator. The designs are adapted from the Midwest Plan Service booklet entitled Designing Facilities for Pesticide d Fertilizer Containment (MWPS-37). This booklet is an _Acellent detailed reference for the plans presented here and is available from the CSU Cooperative Extension Resource Center(970-491-6198) at a cost of$17 plus postage and handling. For steel facilities, there are two design plans for second- ary containment. Several guidelines to simplify the design of these generic plans are incorporated: n All secondary containment facilities for bulk agricultural chemicals shall have a mix/load pad. n Concrete and asphalt for dry agricultural chemical mix/load pads, are the construction materials. Both are readily available and familiar to construction firms. n All designs are developed without a roof covering. n Only the design of the secondary containment or mix/load pad is addressed. Other details such as placement of the bulk tanks, plumbing, and design of pesticide storage buildings are omitted. 5 GROUNDWATER PROTECTION I. OVERALL FACILITY DESIGN _ f 00 000 Vs. 0 The following general design elements are The following design elements are recommended ' required for all facilities: for all facilities: n Site location or grading improvements to provide n For fire protection, locate facility at least 50 feet away drainage away from the facility. from other buildings. tt{{ n The facility must meet all applicable local building codes n Provide a paved (asphalt suggested) apron around the and zoning requirements. mix/load pad to prevent debris from accumulating on the pad. n Stored agricultural chemicals must be secure from unauthorized access. n Provide a personnel safety area which includes an emer- gency shower/eyewash, spill recovery kit, first-aid kit, n Provide a building to store pesticides for protection from clean clothes locker, and storage for personal protection weather and unauthorized access. (Note:This meets the equipment. requirements of the Colorado Pesticide Applicator's Act.) n Locate facility a sufficient distance from a well head to n Concrete in the facility shall maintain impervious comply with product label requirements. character for the life of the structure. This is accomplished through proper site preparation, use of high quality concrete and sealants, proper reinforcement, and crack prevention through proper jointing practices. n Pesticides and fertilizers must be stored in separate aj containment areas. n Provide clearance around each bulk storage tank for access and inspection (a 3 foot minimum clearance U between tanks, and between tanks and walls is assumed in this design). n Equipment to recover discharges is readily available. n The water supply line that serves the facility must be pro- tected by a suitable back flow prevention device or method. tJ a1 t� 6 GROWDWATEu PROTECTION Z U S U QO 3 O4k40U U Q � . `I N..-- �A. I l l ilT( i �. ( L ,,w I;ii�. n., „ r ; iii I %,.. CONGR g w , , ,; GROUIYO*Artp PROTECTION pp II.CONCRETE 040 AOA A Preparation of Subgrade n Vibration during placement at 5,000 - 15,000 rpm Proper design and construction of the subgrade is frequency range for minimum aggregate segregation. important to assure the concrete successfully carries the design load without deterioration. In preparing the n Allow no more than 30 minutes between concrete truck subgrade: loads during placement. n Provide proper drainage away from the subgrade. n Mix 70 - 100 revolutions at mixing speed, then an additional 200- 230 revolutions (maximum of 300 total n Avoid expansive soils (bentonite clays). revolutions) at agitating speed. n Assure uniformity of the subgrade by selective grading, n Discharge load within 1.5 hours. crosshauling, and blending of soils as needed. n Minimize discharge drop distance by using a n Compact the subgrade soil to increase its strength. discharge chute. n Use a subbase over a non-uniform subgrade.A suitable n Use large (1 - 1.5 inch), clean, impervious aggregate. subbase is a 4-inch thickness of sand, sand/gravel, or crushed stone. n Use clean, drinkable mixing water at a pH = 5.0 -7.0. %.:oncrete Specifications n Oven test aggregate for excess moisture and adjust To get the right quality concrete, the order given to the added water accordingly. If oven testing is not possible, ready mixed concrete supplier must be clear and contain reduce total added water by assuming 3.5 percent excess the following information: strength, minimum cement water in sand and 1.5 percent excess in aggregate. content, maximum size of coarse aggregate, slump, and amount of entrained air. Specifications for concrete n Continuous pour in one day-no cold joints. mixtures for watertight construction and good surface durability are: n Use a float finish on the surface with an aluminum or magnesium float to minimize coarse surface texture to n Type I or Type II cement with air entrainment (Type IA or improve washing and cleanup. Concrete surfaces to be IIA) at 4000 -4500 psi compressive strength. Type II coated with a sealant may need added grit for a rougher provides moderate sulfate resistance. texture to improve sealant adhesion and worker safety. n Water: cement ratio of 0.40 - 0.45 for a stiff(1.5 - 3 inch n Immersion or moist cure for at least 7 days (28-day slump), relatively dry mix for maximum strength, pesticide immersion or moist cure preferred for maximum strength). and fertilizer resistance, freeze/thaw resistance, and The easiest method is to fill structure with water. watertightness. n Allow several weeks for green concrete to cure before n 5 - 7.5 percent air entrainment in cement to improve applying sealants to minimize trapped moisture bubbles in workability at placement, and improve watertightness and sealant coating. strength of low slump concrete. n Seal concrete with an epoxy base coating to protect it n Use concrete super plasticizer admixture for easier work- from chemical degradation. ability at placement and improved watertightness d strength of low slump concrete. 9 Concrete Jointing Practice t Proper jointing practice will assist in minimizing floor cracks and prevent leakage. Control Joints Construction Joints ' Control joints induce concrete to crack along the joint that Construction joints are to be avoided whenever possible is sealed to prevent leakage (Figure 1). Control joints are by creating the structure in one continuous pour. If that is formed by tooling during placement of concrete or sawing not possible, waterstops must be used at construction after concrete has cured. Control joints should have the joints to prevent leakage. following characteristics: •Spaced no more than 30 feet on centers in both direc- tions. Fie wlth Joint sealant Foam Backer Rod 'Dowels through joint,coated•Approximately 1/4 inch wide (maximum). 1PY max Radius one side m prevent reinfordng bars,30'long,30'o.c. •Depth of 1/4 thickness of the slab. g4 min • : •Interrupt reinforcing steel at control joint and place T— 30-inch long No.4 reinforcing bar dowels through the joint s every 30 inches along the joint. f 41_111=111-111 I III=111_111=III=111_III. •Fill the control joint with an elastomeric sealer. = l=dl=m=111=ar r Compacted Fill Interrupt reinforcing bars at control joints in each layer Figure 1. Floor Control Joint. l f .a ` 1 I 1 1 J 10 i.I GRcubo{OSEP DRO7bcTict, 00 II.A MIX/LOAD PAD DESIGN 000 006 I. Liquid Agricultural Chemical Mix/Load Pad There are two mix/load pad designs presented here. The primary difference is the number of sumps and containment areas. With either design, the reinforcing steel requirements, sump design options, and curb design options are the same. With either design, SB 90-126 requires the following There are recommended elements to consider in design elements: developing a mix/load pad design, including: n An unroofed pad capable of containing 125 percent of n Using a steel sump (stainless steel is preferred). the volume of the largest container served. n Providing a double sump to separate debris from liquid. n If the largest container served is more than 1,200 gallons, then the only requirement is to contain 1500 n Installing a sump dust cover to minimize debris in sump gallons on an unroofed pad. when not in use. n If the primary use of the pad is to handle spray n Using drip pans under valves and pumps to minimize equipment, and bulk transport vehicles are using the pad drips onto concrete. for only occasional delivery of agricultural chemicals, then �d size is determined as above, provided the bulk n Provide rinsate storage tanks. .nsport vehicles conduct their occasional operations with appurtenances over the pad. n Pad is made of material constructed to a permeability rate of 10-7 cm/sec. n No drains or other outlets in the pad. n Pad must be capable of handling wheel loads of vehicles served. n All liquids on pad must drain to a shallow sump (2 percent Table 1. Single sump concrete pad dimensions and specifications. slope recommended). Pad size, ftxft n Sumps are constructed of Dimensions 25x25 30x30 30x40 40x40 40x50 50x50 50x60 60x60 materials which resist or can be treated to resist corrosion. A,ft 25 30 30 40 40 50 50 60 B,ft 12.5 15 15 20 20 25 25 30 C,ft 25 30 40 40 50 50 60 60 D,ft 12.5 15 20 20 25 25 30 30 E Concrete slab thickness, see Table 3 F,in. 7 7 8 8 9 9 9 10 Gb,gal 1,239 2,023 3,098 4,368 6,010 7,710 9,388 12,173 aSee Figures 4 and 5 for letter designation. bMixing/Loading Pad Containment Volume. 11 11 Use of Mix/Load Plans To use these generic mix/load pad plans, proceed as follows: 1. Select a plan -either the single sump or double sump 3. Obtain all pad dimensions and specifications from Table^ e3 pad (see figure 2 or 3). 1 or 2 in each design. 2. Determine the size of the pad needed by using the 4. Determine concrete thickness and reinforcing bar £� following considerations: specifications from Table 3 after axle load of vehicles using • the pad is known. (a) Size the pad to accommodate the volume of the largest tank served plus the additional 25 percent as 5. Determine type of sump system to use and construct required by SB 90-126. following Figures 5 or 7 and 17 and 18. Fabricate a steel grate to cover the sump. r (1) Use Table 1 or 2 to determine capacity and dimensions. 6. Determine type of curbing to use and construct following Figure 5,7, or 8. (b) Based on the above calculation, determine if the r pad is large enough to: 7. Follow the reinforcing bar detail design of Figure 9 to place steel reinforcing bar. (1)Accommodate the tank and appurtenances if F the boom is not flushed over the pad. f (2)Accommodate the entire spray rig including ,� booms if the boom is flushed over the pad. (3) Use Table 1 or 2 to determine dimensions. Table 2. Double sump concrete pad dimensions and specifications. 'Pad size, ftxft Dimensions 20x30 30x45 40x60 50x70 A, ft 20 30 40 50 'i B, ft 10 15 20 20 p C, ft 30 45 60 70 Table 3. Mixing/loading pad structural design. D, ft 20 30 40 50 ,„ E, ft 10 15 20 25 Locate the reinforcing bars for these pads so there is 2" j{ F, in. 14 17 18 18 between the top surface of the pad to the top edge of the t G ,in. 11.5 13 13 15 bars. Do not locate the bars below the midpoint of the slab, H, in. 14 17 18 21 Figure 9. Interrupt reinforcing steel at control and construction fl Ib,in. 0 0 0 0 joints and place 30" long, #4 reinforcing bars, at 30"o.c. i 8 11 15al K in 7. 5.5 7 7 9 along the joints to tie the slabs together. Use 60 grade steel K, in L, in. 8 11 12 15 for reinforcing bars and 4,000 psi concrete. Overlap bars at ,i M, in. 12 18 18 18 least 12" at splices. N, in. 18 30 30 30 P See Table 3 Concrete slab Reinforcing bars Q, % 3.5 3 2.5 2.5 Single axel load,lb thickness, in.a and spacingb R', % 2 2.2 2 2 3 T1a, gal 732 2,331 4,440 7,015 Up to 20,000 6 #3 @ 10"o.c. T2e, gal 474 1,520 2,934 5,721 20,000 to 30,000 8 #4 @ 12" o.c. c aSee Figures 6 and 7 for letter designation. 30,000 to 40,000 10 #4 @ 10" o.c. b1"can be increased to provide increased containment volume; ill" is changed, add the new 1"value to"G","H", aConcrete slab thickness(t) in Figure 8. J", and"K"dimensions. 'Install reinforcing bars at this spacing in both directions. c "R"is the slope of the pad in the rinsate and pesticide storage area. d "Ti"is the Pesticide&Rinsate Storage Containment Section Volume. e "T2"is the Mixing/Loading Pad Containment Volume. 12 Pesticide Change adjustment of Rinsate Storage roof to match Fig.3&4 Storage Water Tank Mixing/ � Loading Pad �: . pi '� �, Security �� Fence Sump Seasonal Rounded, Slope � pesticide storage Curb and mixing/ handling area Figure 2. Single sump mix/load pad with pesticide storage. See figs.4&5 for plan view and cross section. Pesticide Storage Note: If a rounded drive over curb is preferred,construct according to Fig.8. • Mixing/Loading Pad \� Security Fence Illi � Slope Rinsate Storage Seasonal pesticide storage and mixing/ handling area Figure 3. Double sump mix/load pad with pesticide storage. See figs.6&7 for plan view and cross section. 13 ...... ti A. B' Sedtlon wFlg.5 3-0' 11 I I-- cit 1 11 11• Cl 13Ht .!foi 1 en iia / 3 ii s H f --� ,r [:::I I Q if - E ``\ a B a bi ii I II N a L 31i n L L0 _ P f J- 1 I 1 3V 1 4i Ng LL h$ C• F m .o-zl iti 14 Figure 4. Plan view of single sump mixing/loading pad with pesticide storage. See Table 1 for dimensions. L \ ,, / ,,i- II 9 � - III f I r......„=,: , .._ Ia$ In4 0M I 4MI P_ '' heP. ga GUI 1 {Fill ill ,'g v p rcal p ; 1 a f 'n3 -, IT ynu 9 �' ill € III 8 3111 � e ' a .II — c ;-a [ t?"I mF m co tO i ill 4,rI nl= Vil ei =1 8 !toil .s-.‘ a os deal 111 01 a a ill — r IlE.l: 8a,aa III a eoa _ I 1': co a. r wa aI r�E II �73 e o+p II it a Ns II t N I: m Lo III= wy auk _11 M 8 V G duo i a 'f IIIclie 4 0 414141 1 1 t? v It = \ Cc a jrIS _ o CP49 I 9 0 o :a 5tsi E�" d w (I 3 .Y-A ®kA pp s O1 E LL 15 71 o , o > 0 t 11 o 71 A I T I I —►—L—+—a-.4 s] III " L / I I I I �—*—`—'4- Control Joint Reinforcing Steel Both l Directions, see Table 3 t Variable Variable ` Slope Slope t MIXING/ i S S y LOADING PAD " 4 CONTAINMENT 0 .. ` - Variable Variable I Slope Q43/O,1 Slope I 1 i 1 I I . i I I Variable Variable I .,1 Slope y 1-(5 �� 51ope_ 1 I ; ' J O R°/— % 1 k ) I ;Mixing/ j II 5 I_______J.J ILoadingl I I RINSATE STORAGE (Area III PESTICIDE `� m ---� II STORAGE U A__* E C ..] ..> 0 , jQ D i I Figure 6. Plan view of double sump mixing/loading pad with pesticide storage. See Table 2 for dimensions. See Fig. 7 for the section views. 1 ii 16 I "T2"=Mixing/Loading T1"=Pesticide and Rinsate Pad Containment Storage Containment See Table 3 for Volume in Gallons Volume In Gallons Reinforcing Steel Requirements _ Level I Y I_111 -i1 -1i1-LI s01= . -•N=III=p11 a 1 i0 1 1N I Stainless Steel Section 1-1 \\t�_ /+1 _� Sump Liner Iy l See Table 3 for Reinforcing Steel Requirements .-f 6 I Level Level 1 1 b 6—�J_J-J-�_a-a_� r • ...•.�.....•Y•.�.....,.....• , U dl - — 7 f 0 .. 'a. +ta..s_.- Z_L�J'-Jr 1_J-J-� --III II Section 2-2 Pod Centerline See Table 3 for i Level Reinforcing Steel Requirements Level —`-.JV .J—J_J ---""all -J-i_i-i-i_a_\._L_V rf=III-itt= n 1.1—i.i—'11=1.,—..t—, — r rim f L o —I•I-1r.—hi-n1=III-IfI=r {l— rr-� a 11 f Section 3-3 I See Table 3 for �-Containment Section Divider Wall Reinforcing Steel Requirements Level 1 _,,,ii y�_.a_J__�_�—a— L.� UI=...- . --a_s_i-J---_ — r` Fri .—I.._III: F j C Section 4-4 See Table 3 for -Containment Section Divider Wall Reinforcing Steel Requirement -- ' Level —L--- '_, III t-- Section 5-5 I . •I '1 1 ' Cylindrical Stainless LA— .-4- Steel Sump Liner ,.......-- Figure 7. Cross-section and End-sections of double sump mix/load pad with pesticide storage. See Table 2 for dimensions. See Fig.17 and 18 for sump design options. See Fig. 6 for section locations. 17 • II. Dry Agricultural Chemical Mix/Load Pad •"Lay 6-8" base course of crushed stone on the site and Dry bulk agricultural chemicals must be stored and compact with a roller." handled in a manner to prevent contact with precipitation ■A concrete dry chemical mix/load pad design should use and the surrounding earth, and be easily recovered in the Table 3 to determine slab thickness and reinforcing bar 1_ event of a spill. Thus storage requires a roofed structure design to assure structural integrity. Seal concrete with an with a suitable floor. Mixing and loading areas also require epoxy base coating. a suitable surface. Suitable materials include concrete and asphalt, which will be discussed later. An asphalt dry chemical mix/load pad design should The primary criteria of a mix/load pad for dry chemicals use the following design guidelines: are: adequate strength to handle anticipated wheel loads r7 of vehicles served; creation of a barrier between the ■ Use dense graded hot mix asphalt (HMA). product handled and the earth; and a surface where spills can be easily recovered by sweeping. A flat concrete or ■Carefully choose a contractor to assure quality perform- asphalt pad will meet these criteria. Such a pad should ance of the pad. have a slight slope (2 percent) to drain storm water away from the facility. With either material, proper preparation of ■ Establish the proper job mix formula to achieve the the subgrade is important to assure proper strength of the required structural strength. pad. Follow"Preparation of Subgrade" instructions in the "Concrete" section of this manual when using concrete. • Properly compact HMA. For asphalt, modify the last instruction as follows: ■ Finish the surface of the HMA to minimize porosity. ■Apply a chemical resistant sealant coating. Reinforcing bars as specified in Table 3 (Interrupt at control and construction joints.) 3-4 Reinforcing Bars r in Thickened Edge 3 (Continue these bars through control andcorrsbuction joints) r, ,s a • 'III Elila i1=111-III=III=III= I = 1= p.II =III=III=111x111=1115III=111=1U8IU=IIIsi _— III= i11=11 8 111= =III= III=III=nl=ill=lu=nl= .m. 1. 39 3 Figure 8. Rounded drive-over curb construction. Al least T but not greater than t/2. Reinforcing bars in both directions.Use 60 grade steel. Interrupt reinforcing bars at control and constriction joints. see Fig.1 7 � -III=IIIslil.11/l.5III5III51P=Ills1115111-III" r Compacted Fill / "I=Ill=dI=1d=111="I— . . - I Figure 9. Mixing/loading pad structural design. See Table 3 for thickness and steel reinforcement 18 requirements. 11 To use the generic secondary containment structure plans, proceed as follows: Determine the number, diameter, heights, and capacity 6. Use Figure 17 to construct a sump. tank(s)to be contained and depth of containment (3 feet maximum). 7. Follow the reinforcing bar detail design of Figures 13 (floor), 14 or 15 (walls), and 16 (corner) to place steel 2. Use Table 4 to determine the floor area of the reinforcing bar. secondary containment. Floor area is dependent on the depth of containment. 8. Follow the fence post support detail design of Figure 19 or 20. 3. Determine the minimum length and width of the containment using Figure 12. Calculate actual length and 9. Securely mount tanks on adequately anchored support width dimensions to meet floor area requirements of Step brackets so that tanks are above level of containment wall 2 and minimum dimensions determined from Figure 12. in order to prevent flotation problems in the event of a discharge (see Figure 21). 4. Determine the thickness of the concrete and reinforcing bar specifications from Table 5. 10. If tanks are to be placed directly on secondary containment floor, see Design Facilities for Pesticide and 5. Determine the method of construction - either formed Fertilizer Containment, MWPS-37, pp.30-34 for design footing (Figure 14) or floating slab (Figure 15). specifications for anchoring tanks. Pesticide Water Tank Storage Security Fence Fertilizer � •r.' Storage • Mixing/Loading Pad � ei Rinsate Storage Seasonal pesticide storage and mixing/handling area Figure 10. Secondary containment for fertilizer and pesticide storage with mix/load pad. 19 ^ /GROUNDWATER PROTECTION II.B SECONDARY CONTAINMENT - ti 00 DESIGN 15.s Q0V QOO 1 I Q The secondary containment structure in these generic plans is essentially an open top concrete box adjoining a mix/load pad (see Figure 10). The design shows separate containment for pesticide and fertilizer storage. SB 90-126 requires the secondary containment design There are recommended design elements to consider to adhere to the following design elements: in developing a secondary containment design, including: n The secondary containment structure shall provide n Using drip pans under all valves and pumps to minimize ; capacity totalling: drips onto concrete. The capacity of the largest storage container in the ,� containment; plus n Orienting tank weld seams and outlet valves toward the The total volume of the liquid displaced by the center of the containment area (see Figure 11). submerged portions of all other storage containers, appurtenances, fixtures, and materials located in the In developing these plans for small to medium sized containment; plus facilities, several assumptions were made including: Twenty-five percent of the capacity of the largest storage container in the containment for an unroofed structure. n Plans show containment for pesticide and fertilizer. (If only fertilizer containment is needed, eliminate the n Provide site drainage away from the containment structure. pesticide containment). n The floor of the secondary containment structure must n Sizing of floor area is based on containment support the gravity loads of full tanks. accommodating up to two vertical flat bottom tanks. Both n The walls of the secondary containment structure must tanks are the same size and are not elevated above the resist static and dynamic hydraulic loads. containment floor. Use of elevated tanks is acceptable and will result in a more conservative design. n The floor must be designed to drain liquids to a shallow sump. n Tank capacity ranging from 1,760 to 11,750 gallons. n Sump shall be constructed of materials which resist or can be treated to resist corrosion. n Height of containment is a maximum of 3 feet. n Walls must be of a height so as to allow easy inspection n Fencing is installed atop containment wall. Fencing is 6 of tanks from outside and easy egress from the contain- feet high, made of 12-gauge, hardened steel wire mesh ment area. with 3 x 3 diagonal spacing. n There must be sufficient clearance between tanks and n Containment flooring has a 2 percent slope to a sump. walls to allow for visual inspection of tanks. n There shall be no outlets through the walls or floor. n Tanks are located a minimum of 3 feet from the walls .� and each other. n Required electrical controls shall be elevated above the level of the containment wall. n Bulk storage containers shall be anchored or elevated to a� prevent flotation or instability. n Secondary containment is protected from unauthorized access. n Pesticides and fertilizers are stored in separate containments. 20 J Discharge Valves,oriented toward center of containment to reduce potential of ,^ jetting over walls Flexible Pipes Near Tanks Pipe Supports I. S- I --I I —3'min Between Plumbing Run Tank and Wall Figure 11. Tank orientation and spacing in secondary of O containment. L oI; O O m T D 6' D 3 Figure 12. Minimum dimensions to provide adequate tank clearance. D=Tank diameter(ft).Inside dimensions are for a 3' space between tank and wall. For vertical tanks, all the same diameter. Table 4. Secondary containment floor area (CFA) for vertical tanks Capacity Tank Tank Tank Cont. Number of Tanks gallon diameter, ft. height, ft. area, ft.2 depth, ft. 1 CFA 2 11,750 10 20 79 1 1,963 2,042 10 20 2 982 1,060 10 20 3 654 733 9,517 9 20 64 1 1,590 1,694 9 20 2 795 859 9 20 3 530 594 6,678 8 18 50 1 1,131 1,181 8 18 2 565 616 8 18 3 377 427 4,605 7 16 38 1 770 808 7 16 2 385 423 7 16 3 257 299 2,960 6 14 28 1 495 523 6 14 2 247 276 6 14 3 165 252 1,760 5 12 20 1 295 314 5 12 2 147 209 5 12 3 121 209 21 Two layers of reinforcing bars 1Z^o.c.in both directions for each layer,use 60 grade and construction Joints. gbare al control and construction pins. il h T 1 n m m m w m lli m m m u w n -III-111=III—II =III=al=,llIII-111=III=III=111 Compacted Fill�"'=III=dl=1d=III=d' Figure 13. Secondary containment floor structural design. See Table 5 for thickness and steel reinforcement requirements. �.�-+� 2-r4 Reinfocng Bars,run continuously �.I 3• {� l through control and construction pins Horizontal#4 Reinforcing Bars,at least i2^o.c, Interrupt at control and construction joints o n a IJoint Sealant s (NOTE:Annual maintenance required.) Re Table o as Sactin fied m tables,ban detections \\y o I" n 7%-‘....\-N........N: III-11 — Grade ?� —111=III=III— :III=III=III—,"—"' i Vertical p4 Reinforcing 11. a1-11=III= �ill It =lp= III II-111-11i 11f=11I=III-III Bars,Ur o.c. ' '—"'=III=III=_III=_III=III= I Concrete Floor Compaced Granular Fill II! #4 Reinforcing g Figure 14. Secondary °O// Bars,to^e.c. containment wall on C1 3"r / formed footing. Use 60 fr-i----‹ 0 grade steel and 4,000 psi `1 a MtReinforcngBars concrete.Floor thickness z fop am z bottom and steel reinforcement are as given in Table 5.Install a L— - control joint in wall at each 'n=ill=ill=Ill—III=iir II=III— it r floor control Joint, but no —"I—III.III.III=III Id_ Bending Diameter= more than 30°o.c. 2'-2^ 6x Bar de Nonuniform movement , between floor and wall due to frost heaving could be a -_ - problem with this construc- tion.•For depths below 4•,contact a consulting engineer for a design from the Provide good drainage entire site. 22 i Efi R2 r through n trot a Bcon rt u mntnuously -,, 2 #4mood and construction continuously o 4 Horizontal#4 Reinforcing Bars,at least 12'ox., interrupt at control and construction joints \ Concrete Wall Joni Sealant 1?Total length of vertical Vertical#4 ban in thickened edge Reinforcing Bar, ox.18'o.c. Bending Diameter=Bx Bar dia. _a_ Reinforcement as Specified in ` Flexible Table 5 both direceons Weterstop T o — p / C / ` 2x2 Keyway 1 \\\ o o 3-W Bars Concrete Floor 12'Davebpmerd Compacted Granular Fit - - Length,min -0' Figure 15. Secondary Containment Wall on floating slab. Use 60 grade steel and 4,000 psi concrete.Floor thickness and steel reinforcement are as given in Table 5. Install a control joint in wall at each floor control joint, but no more that 30' o.c. Hodzantel Steel Development Length: 12'for#3 and#4 bars Bending Diameter 15'for ban =6x Diameter 1?for#6 bars Figure 16. Wall corner reinforcement detail. Table 5. Secondary containment floor design. Do not place secondary containment facilities over peat or soils with high organic content. The designs in this table are for poor soils (k=100 pci subgrade strength) and will be conservative in some areas. Use 60,000 psi steel and 4,000 psi concrete. Use two layers of steel bar reinforcement as shown in Fig 13. Maximum tank Concrete Reinforcing bars Area of steelc height, ft. thickness°, in. and spacing° (A5), in° 10 8 #4, two layers, 12" o.c. 0.18 15 10 #5, two layers, 12" o.c. 0.34 20 12 #6, two layers, 12" o.c. 0.47 25 14 #7, two layers, 12" o.c. 0.62 30 14 #8, two layers, 12" o.c. 0.75 aConcrete thickness(t) in Fig 13. °Install reinforcing bars at this spacing in both directions. elks is per foot of width in both directions. 23 1 Containment Area Loading Pad Ares - To Transfer Raised Oiverter Curb Pump Suction/ Sand Trap(10,-12• a Low Level slide x 1•-2•deep Drain Vahre for Rat stave) dimmed) 1. 41 i Suction Overflow Notch or Sloped Grate Hose Pipe between Sumps Pad Slope Stainless Contaent , , Clear Liquid // inm Steil Sump Sump Pump Sump Mud Sump __Optional sloped bottom , User A_——_ i for raking out mud _ / and trash — / /� Skdge/ / Stainless Steel Coned Bottom Raised Divider Curb i Low Level-.. Shallow(1"-2*deep) 3 /.' Drain Valve '.` Sand Trap Depression (optel) i..., i / Ir ' / \• \ / / \ r \ �• � � _ , �] r � - Figure 17. Multiple mixing/loading sump detail for sediment control. r 1 I r Lining Rings l 1 ` /1 304 Stainless Steel T`' Removable Trough. sized to fit 304 Stainless Steel Trough Cast in Wall, sized to fit • Plain View i-11 Loading Pad ' ;- ` Outlet 304 Stainless Steel Settling tlSit s¢edom Secondary Sump, sized to fit Section : Figure 18. Multiple sump pit with removable jj stainless sump containers. 24 it 13- r-1 Weep Hole m Weld 3/16'Steel Plate jij 1' 1' L n mai Outside of Containment Wall Front View Section Figure 19. Metal saddle supports for fence posts. LL 0 3/16'Steel Plate g I 0 od Wed $m if' d si c mn L ideof Containment Wall Front View Section Figure 20. Wall plate supports for fence posts. 25 n — 9 si ,j (2-- I ri _ :. -1000- _ ___. -800 : rnIIIIIIII 1 ali\No llk / I I\\ -‘‘'` -.1.1 - Illiarr 7- Figure 21. Tank mounted on elevated support brackets. 11 LI 26 I • GROUNDWATER PROTECTION Z °° a°o ©oo O re ° Q ,, } tot`: _ 3 f,44. STEEL. F g w q` $ v' -i a+ ( I S I I I L O. GROUNDWATER PROTECTION a III. STEEL SECONDARY 00 CONTAINMENT p00 O00 DESIGN Q .. The secondary containment structure in these generic plans is essentially an open top steel box adjoining a mix/load pad. SB 90-126 requires the secondary containment design There are recommended design elements to consider to adhere to the following design elements: in developing a secondary containment design,including: n The secondary containment structure shall provide n Using drip pans under all valves and pumps to minimize capacity totalling: drips. The capacity of the largest storage container in the containment; plus n Orienting tank weld seams and outlet valves toward the The total volume of the liquid displaced by the center of the containment area (see Figure 11). submerged portions of all other storage containers, appurtenances, fixtures, and materials located in the In developing these plans for small to medium sized containment; plus facilities, several assumptions were made including: Twenty-five percent of the capacity of the largest storage container in the containment for an unroofed structure. n Sizing of floor area is based on containment accommodating up to two vertical flat bottom tanks. Both n Provide site drainage away from the containment structure. tanks are the same size and are not elevated above the The floor of the secondary containment structure must containment floor. Use of elevated tanks is acceptable and 0upport the gravity loads of full tanks. will result in a more conservative design. n The walls of the secondary containment structure must n Tank capacity ranging from 1,760 to 11,750 gallons. resist static and dynamic hydraulic loads. n The floor must be designed to drain liquids to a shallow n Height of containment is a maximum of 3 feet. sump. n Fencing is installed atop containment wall. Fencing is 6 n Sump shall be constructed of materials which resist or feet high, made of 12-gauge, hardened steel wire mesh can be treated to resist corrosion. with 3 x 3 diagonal spacing. n Walls must be of a height so as to allow easy inspection n Containment flooring has a 2 percent slope to a sump. of tanks from outside and easy egress from the contain- ment area. n Tanks are located a minimum of 3 feet from the walls n There must be sufficient clearance between tanks and and each other. walls to allow for visual inspection of tanks. n There shall be no outlets through the walls or floor. n Required electrical controls shall be elevated above the level of the containment wall. n Bulk storage containers shall be anchored or elevated to prevent flotation or instability. n Secondary containment is protected from __unauthorized access. Pesticides and fertilizers are stored in separate containments. 29 GROUNDWATER PROTECTION IIIA. SECONDARY z CONTAINMENT x Oct DESIGN FOR 10 FT. D 4Oa O©O DIAMETER TANKS g. 0 Purpose Foundation To design a containment area fabricated of steel to contain There will be 3 foundations of 32 ft long at the outer edges two 10 ft., 9ft., or 8 ft. diameter tanks capable of containing and the middle of the facility. The foundations will be of c 125% of one tank's capacity. the nature of strip footings. The exterior foundation walls will rise 1 ft. above ground level, and the interior founda- r General tion wall will rise 9 in. above the ground (see Figure 3). The foundations will be designed as per the design of the The beam spacing in the 10 ft. diameter tank model is 4 ft. foundations for concrete provided in this booklet. The sump will be built into the middle foundation and may be .i on center. The exterior beams shall be spaced so they are flush with the exterior posts and provide a smooth joint for under the center beam or to the side of the center beam. the plate to rest. See Connection Details: Connections The center beam may be cut around the sump provided between posts and exterior beams. The foundations for that an adequate foundation and connection to the this model will provide a 2% slope toward the center of the foundation is provided. Otherwise, it is recommended that structure. Measurements are given in feet and inches, the sump be placed as a part of placing the foundation, and modification to these dimensions should be done only cast in place with the concrete. in consideration of connection type. Beams Design Criteria The beams shall be determined by the minimum yield strength of the steel and the desired height of the facility. n Tanks must be 3 ft. from a wall. The outer beam may be taken as a C10x15.3 or a C8x13.75 if it will facilitate bolted connections. Beams n Tanks must be 6 ft. from each other. shall be at least 13 ft. in length except the beam over the sump; which may be shorter if adequate support exists n Facility must be able to contain 3 ft. of standing water. around the sump. Beams shall be placed according to the diagram shown in Figure 2. Consult Table 1 for n 2% slope must be provided for drainage to a sump. determining beam type. n Total height of facility should be less than eye level. l' Table 1. Beam Cross Section i n The facility shall carry the weight of two full 10 ft. diameter tanks. Desired Height Type of Steel Beam iDesign Loads 4ft 8in. 36 ksi W8x18 50 ksi W8x15 4ft 10in. 36 ksi W10x15 n 3 ft. of water(187.2 lb/ft2) 50 ksi W10x12 n 17 ft. of water to represent tanks (1060.8 lb/ft2) Posts f n Self weight of structure ,I Posts shall be connected to outer beams by means of Area welds or bolts. If bolts are to be used, a C10x15.3 or ;i The facility shall have a footprint of 32 ft. x 26 ft. to accom- C8x13.75 on the outer beams may be taken to facilitate modate the 3 ft. of water and the minimum requirements bolted connections. Posts shall be W6x9 in size and be at-- k for tank spacing. The design will have a 2% slope going least 3 ft. + beam depth. Additional length may be needed from the outer foundation walls to the inner foundation wall. on the exterior foundations if posts are going to be bolted into the foundation. Posts shall be placed according to the diagram shown in Figure 2. 30 Li , Plate Tanks The plate covering the beams shall be at least 3/8 in. thick Tanks shall be placed 3 ft. from the edge of any wall and 6 —Id be of 50 ksi or 36 ksi steel. The plate covering over ft. from each other. The center of the tank will be placed .e W6x9 posts shall be at least 1/4 in. thick with 3/8 in. on top of a beam and on top of the center foundation. See being preferred. The plate will be welded along the length Figure 1. of the beam on the underside and the length of the joint on the topside. The plate shall be welded along the length of Sump the posts on the edge and shall be welded on the inside to the post connected to the middle foundation. Plates will be The sump shall be placed in the center of the facility (see cut to fit between posts. The plate connected to the Figure 1), a grate should be placed on top of the sump and beams should be placed before the plate connected to the the plate should be cut smaller than the sump unless a posts. tight seal can be developed by other means. The middle beam may be cut provided adequate support is available. This will allow for the sump to be raised to the level of the plate. Otherwise encase the space between the top of the sump and the plate in concrete and provide seals for the sump and the plate. 1 It_ et It. 13t 8x14 i _t 11* 1 Post 26 t L J 42. 11.0 t9 e j } J. 1 1 J. gure 1. Overhead view of 10 ft. tank design. 31 3 s 1 P� i 311* — 3/7 gym' 9 4 ?at ____ . Figure 2. Front view of 10 ft. diameter tank design. 1 5 ri L Y Post Mate II I \ Ground FoundabonJ _.., Figure 3. Side view of 10 ft. diameter tank design. Li` 32 GROUNDWATER PROTECTION IIIB. SECONDARY 1 CONTAINMENT ppp p DESIGN FOR 7 FT. Qpp DIAMETER TANKS Purpose Area To design a containment area fabricated of steel to contain The facility shall have a footprint of 27 ft. x 13 ft. to accom- two 7 ft., 6 ft., or 5 ft. diameter tanks capable of containing modate the 3 ft. of water and the minimum requirements 125% of one tank's capacity. for tank spacing. The design will have a 2% slope between the outer foundation walls. General Foundation The span length of the beams for this model is 13 ft. Beams should remain this size unless connection options There will be 2 foundations of 27 ft. in length at the outer provide longer beams. All plates should be cut to fit and edges of the facility. The foundations will be of the nature welds should be watertight. The 2% slope will be provided of strip footings. The foundations will be designed as per along the 13 ft. length, the entire structure shall have a 2% the design of the foundations for concrete provided in this slope towards the sump. The sump will be placed next to booklet. The sump will be built into the lower foundation the 9"tall foundation wall. See Figure 6. wall and will be between the two middle beams. See Figure 6. Design Criteria Beams Tanks must be 3 ft. from a wall. The beams shall be determined by the minimum yield n Tanks must be 6 ft. from each other. strength of steel and the desired height of the facility. The outer beam may be taken as a C10x15.3 or a C8x13.75 if n-Facility must be able to contain 3 ft. of standing water. it will facilitate bolted connections. Beams shall be at least 13 ft. in length. Beams shall be placed according to n 2% slope must be provided for drainage to a sump. Figure 5. Consult Table 2 for determining beam type. n Total height of facility should be less than eye level. Table 2. Beam Cross Section n The facility shall carry the weight of two full 7 ft. diameter tanks. Desired Height Type of Steel Beam Design Loads 4ft 8in. 36 ksi W8x21 50 ksi W8x18 n 3 ft. of water(187.2 lb/ft2) 4ft 10in. 36 ksi W10x19 50 ksi W10x15 n 13 ft. of water to represent tanks (811.2 lb/ft2) Posts n Self weight of structure Posts shall be connected to outer beams by means of welds or bolts. If bolts are to be used, a C10x15.3 or C8x13.75 on the outer beams may be taken to facilitate bolted connections. Posts shall be W6x9 in size and be at least 3 ft. plus beam depth. Additional length may be needed on the exterior foundations if posts are going to be bolted into the foundation. Posts shall be placed according to schematics. See Figure 6. 33 Plate Tanks The plate covering the beams shall be at least 3/8 in. thick Tanks shall be placed 3 ft. from the edge of any wall and 6 and be of 50 ksi or 36 ksi steel. The plate covering over ft. from each other. The center of the tank will be placed Y the W6x9 posts shall be at least 1/4 in. thick with 3/8 in. on top of a beam. See Figure 4 being preferred. The plate will be welded along the length of the beam on the underside and the length of the joint on Sump the top side. The plate shall be welded along the length of the posts on the edge, and shall be welded on the inside to The sump shall be placed in the center of the lower foun- the post connected to the middle foundation. Plates will be dation wall, a grate should be placed on top of the sump 11 cut to fit between posts. The plate connected to the beams and the plate should be cut smaller than the sump unless should be placed before the plate connected to the posts. a tight seal can be developed by other means. See Fgure 4. N I] 32 fl. 9 P T 2 T T T T T I 1 ll R B ft. 1 A ft.f—I- sump{ft H Tank 26 ft. Canter Post { I� 1 ILen. i. F Oft F i F .1 _t 1 I 1 1. 1 6fl Figure 4. Overhead view of 7 ft. diameter design. ti Li 34 j 27 ft— Post 3'10' Plate 1 L fta- Figure 5. Front view of 7 ft. diameter design. 1311. wee 311,10IniPlate Beam 9In Foundation 1 it.Sump ." fOraUndl. figure 6. Side view of 7 ft. diameter design. 35 . GROUNDWATER PROTECTION a gip} Op IIIC. CONNECTION 000 000 DETAILS 11 LI a cp Q 11 General Connections between beams and foundations All connection details apply to all instances of the specified Connection details shall apply for all beams on exterior circumstance. Bolts should be of the same quality and foundation walls. size throughout the structure. Slotted or elongated holes may be used to facilitate easier connections. Option 1 1 The connection between the beam and the foundation Between exterior beams and posts along should be adequate to hold the structure in place. The the short length beam should cover 6 in. of the 1 ft. wide foundation and the post should cover the remaining 6 in. One 3/4 in. ` anchor bolt should be placed on each side of the web 2 in. The connection between the 13 ft. beams and the posts is r shown in Figure 7. When using a channel section, the from the post into the flange of the beam. This bolt should connection should be made using bolts between the flange be anchored into the foundation and then a cap plate of the post and the web of the channel. The use of 3/4 in. should be placed on the foundation. Welds should be bolts is preferred. If W shape beams are to be used, it is made between the posts and the cap plate as well as r� recommended that welds be used to connect the flange of between the beam and the post. Welds should be made4. the posts to the flange of the beams. The bead of weld all along the flange of the post.See Figure 8 for more details. should extend the entire width of the post's flange and be *I sufficient to hold the post in place. b Plate Port i Beam Plisipiati Plate wadsa PostPost 3/4 tn.• i / 21 h III —Cap Rate 6tterbrBeem 3/4i ; • . Weld\ q Wthape • 'a- }• 1 u I �� Famdatbn •' 11_ 1 Beam A .s.. •• `� 1 ' ' a. 4 ..1 . t • 4 . ._ a l . • ri Figure 7. Exterior beam connection with Posts. Grand Level IFigure 8. Option 1, beam and post on top of foundation, ; ii 36 Li 4 !-� Option 2 10 ft. Diameter tanks special consideration The connection between the beam and the foundation Since the span of the beams in the 10 ft. diameter tank ould be adequate to hold the structure in place. The design is slightly greater than 13 ft. due to the 2% slope ..aam should cover between 10-12 in. of the 1 ft. wide toward the center, special consideration should be taken foundation wall. Beams may need to be greater than 13 ft. when sizing the members and the position of the in order to occupy more of the foundation; it may be foundation. It is possible to place the foundation slightly possible to place the foundation towards the center of the closer depending on which connection detail is used in the structure to decrease the length of the beam. The post will structure. Consideration should also be taken when sizing then be welded onto the beam and should hang over the the length of the wall plate. The wall plate can be made to edge of the foundation. Two 3/4 in. bolts per flange should fit by cutting a small section off each end of the plate. The connect the beam to the cap plate and the foundation. wall plate may also be taken slightly shorter and then The first bolt should be spaced 3.5 in. from the post and welded to the end posts and center posts to prevent the second bolt should be spaced 5 in. from the first bolt. leakage. All plate members should be cut to fit rather than These bolts should be anchored into the foundation. taken as 13 ft. in length. Multiple plate sections may be Welds will be along the entire flange of the post and posts used to cover the 13 ft. span, but all welds must remain may or may not be welded to the cap plate. See Figure 9 watertight. for more details. Plate Post Y4 k1.lofts 1/2 r Bar .r Mate a r;. - #e 4 'a, 4 FFoundation . • i • a• ,• 4' �, • a' m Y Ground • Figure 9. Option 2, beam extends a great distance on foundation and beam is bolted to foundation. 37 AGPRO LANDPRO COMPLETE LAND AND RESOURCE SOLUTIONS January 31, 2005 Weld County Department of Public Works 1111 H Street P.O. Box 758 Greeley, CO 80632 RE: Ray Edmiston, USR—Preliminary Drainage Investigation To Whom It May Concern: The purpose of this letter is to address drainage concerns within and around the proposed development for Ray Edmiston. The development of the Ray Edmiston site will consist of an airplane hangar, fueling and loading area for crop dusting, a runway, and associated graveled parking area. The site lies within an existing drainage basin tributary to the Platteville Ditch and subsequently to the South Platte River. The existing drainage basin consists of approximately 1400 acres and extends to the east approximately 2.75 miles past the proposed improvements. The drainage basin consists of primarily dry farmland and pasture with some irrigated farmland. Historically, runoff from this drainage basin flows at a max rate of approximately 72 cubic feet per second (cfs) for the 5-year storm event and approximately 651 cfs for the 100-year storm event. The calculated developed runoff from the same storm events is essentially identical. The Urban Drainage and Flood Control District's CUHP program with its required inputs was utilized to calculate the historic and developed runoff flows for this drainage basin. The results show that no significant impact will be experienced by the Ray Edmiston USR development. Therefore, no drainage facilities are proposed. If you have questions, please call. Sincerely, o*PO REO/Sl \GW,•pU� F � Eric W. Dunker, P.E. ; O0 Senior Engineer 3••••/•3/.0;:°.4" S/ONAL C•N' Cc: Ray Edmiston ENGINEERING, PLANNING, CONSULTING & REAL ESTATE AGPROfessionals,LLC/LANDPROfessionals,LLC 4350 Highway 66•Longmont,CO 80504 970.535.9318/office• 303.485.7838/metro•970.535.9854/fax. www.agpros.com Sheri Lockman from: Lauren Light[Ilight@agproscorn] ?nt: Wednesday, April 06, 2005 10 29 AM i o: Sheri Lockman Subject: FW: edmiston airstrip - USR-1504 [01 i*" IMG_3455.jpg (577[MG_3454.JPG(614!MG_3446.JPG(640[MG_3449.JPG(476:MG_3453,JPG{592 KB) KB) KB) KB) KB) Original Message From: Lauren Light (mailto:llight@agpros.com] Sent: Friday, April 01, 2005 11:03 AM To: slockman@co.weld.co.us Subject: edmiston airstrip - USR-1504 here are some photos of the existing aerial sprayers site that is just southwest of morning fresh farms. This area has more houses then where he is relocating to. 3455.jpg is the adjacent bldg to his hanger. the big metal structure on top of the building is right next to the runway and is dangerous which is one reason he is moving. 3454.jpg is a photo of his hanger and the storage building from the runway ,446.jpg is a photo of the hanger and the contained tank storage area 3449.jpg is the storage building 3453.jpg is the exisiting facility from the runway. shows the storage building, hanger and the adjacent building with the metal structure on top. Lauren Light AG and LANDPROfessionals, LLC 4350 Hwy 66 Longmont, CO 80504 970-535-9318 303-485-7838 (metro) 303-870-0013 (cell) 970-535-9854 (fax) llight@agpros.com 1 • r F*:.,• :,,,c,, Y ja -'if �,v '•j �� ir. I 1".li"its r ' ;f 1s 1Il '.rFiI '1'(iiir 1 • i" t ih ria > 41 Ott 7• i 1 ,s P .. z i1 I i :G' '4iPR C k i. (,3 t: i jt0�ilW r�.l iii i( I iiK' a s l(f' 1,3.8 1 11;1,1 d� M1M1 ! , ,ip r i v: �,t !'""i'`". 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