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HomeMy WebLinkAboutApplication-Permit.pdfGarfield County Building & Planning Department 108 8th Street Suite 401 Glenwood Springs, CO 81601-Phone: {970)945-8212 Fax: {970)384-3470 Project Address Parcel No. Subdivision 216921400026 DEBEQUE, CO 81630-Owner Information Address OXY USA WTP LP 760 Horizon DR Grand Junction CO 81506 permit NO. SEPT"12"09~1400 Issue Date: 1/13/2010 Phone . permitTYR~:septicpefmit WorkClassificatiqrr. New PermitStatus: Active Expires: 01/13/2011 Section Township Range Cell Contractor(s ) Phone Primary Contractor Required Inspections: Williams Scotsman Proposed Construction I Details Septic tank for field office. FEES DUE Fee Septic Fee -New To!al: Tuesday, January 12, 2010 (970)241-7110 Yes Valuation: $ 0.00 Total Sq Fee!: o FEES PAID Amount Inv Total Pay type Am! Paid Am! Due $73.00 $73.00 Inv # SEPT-12-09-19944 $ 73.00 Credit Card $73.00 $ 0.00 Fo"",po.llo", .,11: 1 (970)384-5003 Inspection IVR See Permit Record Building Department Copy 2 1 2 3 4 5 6 7 8 9 10 II 12 13 14 15 16 17 GARFIELD COUNTY SEPTIC PERMIT APPLICATION 108 8th Street, SuiteAOI , Glenwood Springs, Co 8160 I Phone: 970-945-8212 1 Fax: 970-384-3470 /Inspection Line: 970-384-5003 ww\v ·! !,r trficld -county com Parcel No: (this information is available at the assessors office 970-945-9134) 216921400026 Job Address: (if an address has nol been assigned, please provide Cr, Hwy or Street Name & City) or and legal description SESW SECTION 5, T7S, R97W, 6TH PM ~'Io~ v..~ Cs> i II. ~O Lol Size: Lol No: BlocK. No: Subd.l Exemplion: 10303.37 ACRES N/A N/A N/A Owner: ~ro~rt~ownerL Mailing Addr~ss . Ph: OXY8 TPP 760 Horlzon Drlve, Suite 101 Grand Junction, CO 81506 (970)263 -3637 Contractor: Mailing Address Ph: Engineer: Mailing Address 112 9 24 RD Ph: Tliomas A. Cronk , P.E. Grand Junction, CO 81505 (970)245 -0577 PERMIT REQUEST FOR: (x) New Installation ( ) Alleration All Ph: All Ph: All Ph: ( ) Repair WASTE TYPE: ( )Owelling ( )Transienl Use (X)Commercial or industrial ( )Non-Domestic wastes ( )Olher Describe BUILDING OR SERVICE TYPE: Field Office Number of bedrooms 0 Garbage Grinder ( )Yes ( )No SOURCE & TYPE OF WATER SUPPLY: ( )WELL ( )SPRING ( )STREAM OR CREEK (X)CISTERN If supplied by COMMUNITY WATER, give name of supplier: DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM: 1 0+ miles Was an effort made to connect to the Community System? No, distance to far YOUR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT WILL NOT BE ISSUED WITH OUT A SITE PLAN GROUND CONDITIONS: Deplh 10 1" Ground Waler Table 75ft Percent Ground Slope 10% -12% TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM (ISDS) PROPOSED: (X)Seplic Tank ( )Aeralion Plan I ( )Vaull ( )Vaull Privy ( )Composling Toilel ( )Recycling, Polable Use i lOlher-Describe ( )Recycling, olher use ( )Pil Privy ( )Incineralion Toilet ( )Chemical Toilel FINAL DISPOSAL BY: (X)Absorption Irench, Bed or Pil ( )Underground Dispersal ( )Above Ground Dispersal ( )Evapolranspiralion ( )Sand filler ( )Waslewaler pond ( )Olher-Describe Will effluent be discharged directly into waters of the state? ( )YES (X)NO PERCOLATION TEST RESULT: (10 be completed by Registered Professional Engineer, if the Engineer does the Percolation Test) Minutes 37 per inch in hole No.1 Minutes 1Q per inch in hole No.3 Minutes 37 per inch in hole No.2 Minutes per inch in hole No._ Name, address & telephone of RPE who made soil absorption test: Thomas A. Cronk, P.E. Name, address & telephone of RPE responsible for design of the system: Thomas A. Cronk, P . E . Applicant acknowledges that the completeness of the application is conditional upon such further mandatory and additional test and reports as may be required by Ihe local heallh departmenllo be made and furnished by Ihe applicanl or by Ihe local heallh departmenl for purposed of Ihe evalualion of Ihe application; and Ihe issuance of the permit is subject to such terms and conditions as deemed necessary to insure compliance with rules and regulations made, information and reports submitted herewith and required to be submitted by the applicant are or will be represented to be true and correct to the best of my knowledge and belief and are designed to be relied on by the local department of health in evaluating the same for purposes of issuing the permit applied for herein. I further undersland thai any falsificalio~senlalion may resull in the denial of Ihe applicalion or revocalion of any perm:~led based upon said applicalion and legal aCli:~or pe~irov law. .//0 'fJ ~~. /Z-7 OWNERS SIGNATURE DATE /STAFF USE ONLY permitF~ .~ ,ou Perk Fee: Total fees: Building Permit #: ~,S4~~ l~, =-= -1-:519 Septic Permit #: Issue Date: -\400 \ ·12-, 10 BUild~n\\r~~ ~ APPROVAL ' ~'iI" [/{1../'W(O DATE June 7,2010 1129 ·24· Road L II )1 I 0'1 ) )UI T CRONK p ",mil '(, CONSTRUCTION INCORPORATED • Grand Junction, CO 81505 970·245·0577,970·257·7453 (fax) CERTIFICATE OF INSPECTION AND ACCEPTANCE Individual Sewage Disposal System Oxy USA WTP LP Coon Creek Field Office County Road 213 Garfield County The individual sewage disposal system of reference was inspected on June 7, 2010. The system was found to conform with the plans and specifications set forth in the engineered sewage disposal system design for the aforementioned property prepared on December 10, 2008. Copies of the engineered plan may be obtained from the undersigned design engineer. --/4J?~ Thomas A. Cronk, P.E. 1129 -24-Road Grand Junction, CO 81505 970-245-0577 47.3' ofFice 56' ~ tro.ller OXY USA 'w'TP LP FIELD CONN CREEKICR 213 GARFIELD COUNTY, CO ASBUIL T DRA'w'ING JUNE 7, 2010 SCALE: 1'=:40' cleo.n out 1500 gollon one-~ COMpo.rtMent septic to.nk w/cluplex eFFluent pUMP 2 6 pressure-'/tra.nsport Ma.in a.bsorption urea. consisting of' 4 rows of' 18 Qulck4 Inf'iltra.tor units For a. toto.l of 72 units conFigured in serla.l distribution OFFICE ~ NORTH I f-Date: Prepared by: CRONK CONSTRUCTION INCORPORATED • Iii ·1 l "u ') 1129·24· Road G Grand .Junction, CO 81S0Sr)", 970·245·0577,970.257.7453 (fax) INDIVIDUAL SEWAGE DISPOSAL SYSTEM DESIGN December 10, 2008 Thomas A. Cronk, P.E. Cronk Construction Inc. 1129 -24-Road Grand Junction, CO 81505 245-0577 Type of Design: Commercial System Client: Site Location: Legal Descript.: OXY USA WTP LP Craig Richardson Daniel Padilla Olsson Associates 760 Horizon Drive 826 21 -112 Road Grand Junction, CO 81506 Grand Junction, CO 81505 970-263-7800 Conn Creek Road, County Road 213, DeBeque, CO 81630 SESW Section 5, T7S, R97W, 6111 P.M. Page 10f8 i' ) 1.0 Site History The site consists of a parcel of unknown size of uncultivated native soil. The nearest property boundary is approximately 280' west of the area of concern. Drainage in the area of concern is approximately 10%-12% to the west in the area of reference. A percolation test/soils evaluation was conducted on the property of reference on 11125/08 by Tom A. Cronk, registered professional engineer (R.P.E.). The perc excavation trench (excavation A) was located approximately 300' south of the proposed office. Additional perc holes were located 40' east of the trench (excavation B) and 65' east of the trench (excavation C). The 11125/08 investigations were intended to develop subsurface design parameters for an individual sewage disposal system (ISDS) to serve a proposed commercial mancarnp at the site. An engineered ISDS design has been prepared for the project. The 11/25/08 perc test/soils evaluation is attached for reference as Appendix A. The location of the site investigation is shown on the attached plot plan. A discussion of developed subsurface design parameters and the engineered ISDS design follows. 2.0 Development of Design Parameters Aperc excavation trench (excavation A) was extended to a depth of 132" below ground surface (BGS). There was no evidence of ground water or high seasonal water table in the open excavation to a depth of 132" BGS. The soils evaluation indicates two distinct soil horizons underlie the site. A lithological description follows: depth (in.) 0" -18" 18" -132" description sandy clay loam, gray; moderately hard and blocky sandy clay loam matrix with sandstone gravels (5mm-75mm), tan An INFILTRATOR trench absorption field configured in serial distribution is proposed for the site. A design perc rate of 40 minlin. is chosen for overall sizing of the absorption field (see Appendix A). Page 2 of8 3.0 System Design INFILTRATOR absorption trenches are proposed for discharge of septic effluent at the site. Construction of the system will consist of excavating level trenches in the area comprising the absorption field. As shown in the attached septic layout plan, the trenches will be oriented perpendicular to the natural slope and along a line of constant elevation to minimize the depth of excavation along the trench length. Each trench excavation shall be continued to a maximum depth of36" BGS at the uphill side of the trench (see absorption field cross-section). After removal of surface soils, the open excavations will be disked or scarified to promote subsurface absorption. Following completion of the initial push-outs, INFILTRATORS will be used to construct a septic effluent distribution system in the open excavations. The INFILTRATOR effluent distribution system will be installed in accordance with the "Infiltrator Technical Manual", available from Infiltrator Systems Inc., 123 Elm Street, Suite 12, Old Saybrook, Connecticut 06475. Adjacent INFILTRATORS shall be fastened with a minimum of four (4) 3/4" x #8 self-tapping sheet metal or bright brass deck screws to prevent movement and separation during backfilling. Septic effluent will be transferred from the upper trench to each ofthe adjacent downhill trenches through a serial distribution network as shown in the attached construction details. The serial distribution connections between adjacent trenches will facilitate the saturation of the up hill trench before septic effluent is allowed to flow to each of the adjacent downhill trenches. As shown in the attached Absorption Field Cross Section, the bottom of the INFILTRATOR seepage trenches will be located a maximum of 36" below ground level. The installation will provide 48" of usable infiltration soil between the bottom of each INFILTRATOR trench and the underlying subsoils. After the INFILTRATORS are installed, the absorption field will be covered with a soil cap. The soil cap will consist of approximately 24" of native soil. A minimum of 5% slope will be maintained to promote surface run off away from the absorption field. Because the absorption area (see attached septic layout plan) is located at a higher elevation than the septic tank, a lift station will be required to transfer effluent from the septic tank to the absorption area. As shown on the attached graphic, two 1,500 single compartment (i.e., interior baffle removed) will be placed in series to retain sewage effluent from the proposed field office. A duplex septic tank effluent pump (STEP) will be placed in the final septic tank to deliver septage to the absorption area. As shown on the attached graphics, the STEP pump will consist of duplex Orenco pumps (model no. PF500511) configured in an Orenco pump vault (model no. PVU57-2419-L). The STEP unit will be fitted with a 1-114" discharge assembly. A 2" pressure transport line (SCHD 40) will be used to convey septage from the STEP unit to the absorption area. The 2" pressure line must be installed below a depth of 36" or insulated to prevent freezing. The installer must also confirm the setbacks from property lines, building envelopes, and existing easements shown in the attached graphics are maintained. Additionally, any unknown utility lines, easements, or other adverse conditions disclosed during construction must maintain the required setbacks listed on page 6 of this document. A minimum of 12" (18" recommended) of soil cover is required for all gravity flow effluent piping, the septic tank/lift station, and the absorption field (excepting maximum 8" soil cover over septic access ports). All non-draining pressure effluent piping must be covered with a minimum of 36" of cover or insulated to prevent freezing. All effluent lines under vehicle traffic areas shall be minimum Schedule 40 and shall be covered with flow fill and high density 2" blue board if less than 36" of cover. Finally, 4" clean outs shall be provided at maximum 100' intervals in all gravity flow Page 3 of 8 effluent lines exceeding 100' in length. ISDS components in traffic areas shall be structurally adequate to support the overlying loads (i.e., structural manholes and septic tanks). The ISDS will be designed to accept sewage discharge from a fifty (50) person field office with Y, bath and break sink facilities. Sewage loading estimates follow: source loading factor average daily sewage flow (gal/day) office workers 50 employees @IS gal/person-day .................... 750 gal/day Total Average Daily Flow . ................................................... 750 gal/day To provide sewage retention capacity and a lift station vault, a 1,500 gallon single compartment septic tank (i.e., interior haffle removed) will he placed in series and ahead of a second 1,500 gallon single compartment septic tank (see attached septic layout plan). As discussed above, an INFILTRATOR system is proposed to discharge septic effluent to the underlying sub-soils. As shown in the attached graphics, the absorption field will consist of 72 QUICK4 INFILTRATOR units configured in serial distribution as four rows of 18 infiltrators each. The absorption field will encompass a gross area of 864 square feet with an effective area (9.87 sq. ft.lINFILTRATOR plus 50% reduction factor) of 1,421.28 sq. ft. Calculations and design parameters used to size the absorption field follow. DESIGN CALCULATIONS AVERAGE DESIGN FLOW OF 750GAL.lDAY PEAK FLOW = 150% OF AVERAGE = 1125 GAL.IDAY DESIGN PERCOLATION RATE = 40.0 MIN.lINCH A = Q5{t' WHERE , A = ABSORPTION FIELD AREA Q = PEAK FLOW t = PERC TIME/INCH A = 1125/40.0 = 1423.02 SQUARE FEET 5 SIZE ADJUSTMENT FACTOR OF 0.5 FOR INFILTRATOR TRENCH SYSTEM ADJUSTED AREA = 1423.02 X 0.5 = 711.51SQUARE FEET USE 72 QUICK4 INFILTRATORS @9.87 SQ. FT. EACH FOR TOTAL ABSORPTIVE AREA OF 72 X 9.87 = 710.64 SQUARE FEET Page 4 of8 4.0 Site Specific Installation/Operation Requirements The owner and system contractor shall be aware and comply with the following installation and system operation requirements. 4.1 Installation -Setbacks, Notifications, and Inspections • All installation activities shall be conducted in accordance with current Colorado Department of Health ISDS Regulations as well as any relevant Garfield County regulations and requirements. If at any time during construction, subsurface site conditions are encountered which differ from the design parameters developed in Section 2.0, construction activities will stop and the design engineer will be contacted to address any necessary design modifications. • Installation procedures including grade, location, setbacks, septic tank size, and absorption field size shall conform with the attached graphic details. Construction activities and system components will not encroach upon existing easements or utility corridors. A minimum of 6 ft of undisturbed soil shall be maintained between individual absorption elements and the septic tank and/or adjacent absorption elements. Minimum site specific setbacks for system components are: Source Sell tic Tank Absoilltion Field Building Sewer water line 10' 25' 10' domestic well 50' 112' 50' domestic cistern 25' 25' dwelling 5' 20' property lines 10' 10' my gulch 10' 41' pondllake/stream 50' 66' inigation ditch open 50' 66' linedl ga tedlult.lp iped 10' 10' • All gravity flow sewer lines and effluent distribution piping shall be 4 inches in diameter and have glued joints. INFILTRATORS shall be placed level in the absorption field. All lines discharging sewage from the residence to the septic tank shall maintain fall of between 118 in. and 114 in. per foot and shan employ sweep 90's or 2-45's at all turns. Sewer lines from the structure to the septic tank and at least 6 ft from the septic tank outlet must meet minimum standard ASTM-3034. Sewer lines under driveways shall always meet minimum Schedule 40 PVC standards and shall be encased with corrugated metal pipe or flow fill and minimum 2" high density blue board when covered with less than 36" of soil. • A minimum of 12" of soil cover (18" recommended) shall be maintained over all gravity draining ISDS components to prevent freezing of septic effluent (excepting maximum 8" cover over septic access ports). Four in. sanitary clean-outs shall be installed at maximum I 00' intervals in all gravity flow effluent lines exceeding 100' in length. • The installer shall not place fill in the open excavation until inspected and approved by Page 5 of8 the design engineer. Additionally, the final cover shall not be placed on sewer lines, septic tank, or the absorption area until the system has been inspected and approved by the design engineer. The installer shall provide 48 hour notice to the engineer for all required inspections. • The effluent distribution system shall be constructed in accordance with the "Infiltrator Technical Manual" available from Infiltrator Systems Inc., 123 Elm Street, Suite 12, Old Saybrook, Connecticut 06475. • Adjacent absorption field trenches shall be connected by a serial distribution system to assure saturation ofthe upgradient trench before effluent is passed to the adjacent downgradient trench (see attached absorption field plan view and cross section details). • The surface cap shall be mounded 5% over the absorption field to promote surface runoff. • All pressure piping shall be min. Schd 40 PVC and have glued joints. • The septic effluent pumping system limit switching shall consist of: I) low level/pump off, 2) high level/pump on, and 3) high level alarm/system failure. The high level alann shall be easily detectable by occupants. Emergency notification information (e.g., telephone numbers of owner, Garfield County Environmental Health Department, service personnel) sha!1 be posted near the high level alarm. • All access manholes on septic tanks and dosing chambers will be child proof and contain appropriate warning labels if accessible to the public. Confined space entry precautions should be observed by maintenance personnel. • The system contractor shall be aware of the potential for construction activities to reduce soil permeabilities at the site through compaction, smearing, and shearing. The fo!1owing precautions and construction procedures should be employed during installation to minimize disturbance to native soils: 1. Excavation should proceed only when the moisture content of the soil is below the plastic limit. If a sample of soil forms a rope instead of crumbling when rolled between the hands it is too wet and should be allowed to dry before excavation continues. u. Excavation and backfill equipment should work from the surface where at all practical to avoid compaction of the soils at depth. UI. The bottom and sidewalls of the excavation should be left with a rough, open surface. The appearance should be that of broken or ripped soil as opposed to a sheared, smeared, or troweled surface. Any smoothed or smeared surfaces should be removed with a toothed rake or shallow ripper taking care to remove loose residues from the bottom of the excavation by hand if necessary. IV. Care should be taken in placing fill materials in the excavation to avoid damaging the exposed soil surfaces. Page 6 of8 4.2 Operation -Maintenance and Inspections • The owner shall install a structural barrier if necessary and take precautions to prevent vehicular traffic, excessive surface watering, accidental flooding, or other activities in the vicinity of the absorption field which may compact, saturate, or otherwise alter the subsurface soil parameters used in designing the septic system. • The owner will plant and maintain grass or other shallow rooted cover crop to prevent erosion and promote evapotranspiration over the absorption field. • The owner will inspect and maintain the required mounding and drainage away from the absorption field to prevent saturation from precipitation and surface flows. • To mitigate the generation of preferential flow channels which may compromise the operation of the system, the owner will inspect and prevent intrusion of burrowing animals and deep rooted plants into the absorption field. • The owner will conduct periodic maintenance of the septic system by removing accumulated sludge from the septic tank every 3-4 years to prevent clogging of the absorption field. Page 7 of8 5.0 Limitations This report is a site specific design for installation of an individual sewage disposal system and is applicable only for the client for whom our work was performed. Use of this report under other circumstances is not an appropriate application of this document. This report is a product of Cronk Construction Incorporated and is to be taken in its entirety. Excerpts from this report may be taken out of context and may not convey the true intent of the report. It is the owner's and owner's agents responsibili ty to read this report and become familiar with the recommendations and design guidelines contained herein. The recommendations and design guidelines outlined in this report are based on: 1) the proposed site development and plot plan as furnished to Cronk Construction Incorporated by the client, and 2) the site conditions disclosed at the specific time of the site investigation of reference. Cronk Construction Incorporated assumes no liability for the accuracy or completeness of information furnished by the client. Site conditions are subject to external environmental effects and may change over time. Use of this plan under different site conditions is inappropriate. If it becomes apparent that current site conditions vary from those anticipated, the design engineer should be contacted to develop any required design modifications. Cronk Construction Incorporated is not responsible and accepts no liability for any variation in assumed design parameters. Cronk Construction Incorporated represents this report has been prepared within the limits prescribed by the owner and in accordance with the current accepted practice of the civil engineering profession in the area. No warranty or representation either expressed or implied is included or intended in this report or in any of our contracts. Thomas A. Cronk, P.E. NOTE: This individual sewage disposal plan is meant to include the following six pages of graphics including: 1) plot plan, 2) septic layout pIau, 3) absorption field plan view, 4) absorption field cross sectiou, 5) cross section -lift station, aud 6) effluent pumpiug system design. The pIau is uot to be implemented in the absence ofthese related graphics. Iu addition, results from the percolation test aud soils evaluation are iucluded for reference as Appendix A. Page 8 of8 I I I I I I I I I I • I • I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ~ I I I I I I I I I I, I I' I ""I I I I I I I I I I I I I I I I I I I I I I I I' I " I \ 1 \ 1 \ ·1 \ I \ \ I \ \ \ I •• • • EXISTING PIPELINES (--;.:;-\ /J 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I "--, " \ \ I ) ) II I II=I--,=L-/=_=_=Ol~ :.:::.=!/=~ ~) I I I 10K por obt",7 \ I I W(l te,.. tornge r ___;b :tec~n,,,. ,.' !Cph" :r'''octoo;f,r o.ge \I )) II \ \ \ \ exlstl"lg porto.~\(? toilets \ \ \ \ \ \ \ \ \ \ eXlstl~ troller to be eMo" .. d PROPOSED OFFICE TRAILERS (48'x60') \ I J \ I I I I I I I I I \ I I I I I I I I I I I I I I I I I I I /! } I I I I I /I I J I I J I I J I I J J J J J J J J /J I /I I J J /J I J J I /J //J ,//I I I I I I I I I I ) \ I "\ \\ \ " I \ \ \ I \ 'I I I I I I I I J J /J I I \ \ /J \ \ \ \ \ ///\ \ \ \ \ \ I \ \ \ \ I J J I \ \ \ \ \ I \ \ \ \ I J J J J J J //\ \ \ \ I I \ \ \ I I ///' /\ \ \ \ \ I I I \ //\ \ \ \ \ \ \ \ \ \ \ \ /\ \ \ " ~~ ~~ \ ~~ \ ~ \ \ \ \ \ ~~ \ ~~ \ ~~ • //////~~ \ ..__---///II /( EXISTING PELINES \ \ ~~ ~~ \ ~~ \ \ 1 1 --: .. 1 ••••••• •• 1 1 1 1 1 1 1 I 1 1 1 \ 1 \ 1 \ 1 \ \ : \ 1 I \ \ OXY USA ",TP L CONN CREEK/CR:tJ1eld OFf'lce GARFIELD COUNTY CO SITE PLAN ' DECEMBER 8 2008 SCALEI 1"=50' !>s6\1 ,,, 1 1 I I 1 NORTH 1 1 I I 1 I I 1 1 1 1 1 1 \ \ , ~ • \ \ \ \ \ \ • •••• \ I I I I ~ •" ( I I . .•••.....••... ~ .. ; \ \ \ \ \ I I I I I • ~ I I I I I I I I N I I I I I I I I I I I I I ~ \ \ \ \ \ \ \ \ c I I I I I I I I I I I ~ ~ I I I I I I I I I I I I I I I ! \ \ \ \ \ \ \ \ \ I \ \ \ \ \ \ \ \ \ I I I I I I I I I I I I I I I I I I I I I I I I I I ,I \ I I I I \ I \ I I I I I I I I I I I I I I I I I I I I I I I I I •• •• •• •• •• •• •• •• •• •• •• • •• NOTE CALL 1-800-922-1987 FOR UTILITY LOCATES BEFORE EXCAVATING r--+---ic-IEXISTlNG PIPELINES I I 1 I I I • r---~--~----------u-_~ •• •• •• •• NOTE PROVIDE 4" CLEAN ours AT MAXIMUM lOa' INTERVALS IN ALL NON-PRESSURIZED EFFLUENT LINES EXCEEDING 100' IN LENGTH · \ · • exlstl\" g clean out PROPOSED OFFICE TRAILERS (4B'x60') 5'Mln. I I 2 eo.. 1,500 90.[( one COMpo.r Ment septic tanks (I. I Interior bOo fie //I I I I \ \ I \ \ I \ NOTE THE FOLLOVING SETBACKS MUST BE MAINTAINED! SEPTIC TANK SPRINGS IV/ELLS 50' LAKE/STREAM/IRRIG. DITCH --50' LINED W'ATER COURSE 10' GATED PIPE la' DRY GULCH 10' PIPED/INT, IRRIG, LINE 10' DOMESTIC 'WATER LINE 10' ABSORPTION FIELD 116' 66' la' 10' 41' 10' 25' \ \ :• ~~~~~~e r--l--------L-------- -~--~ • NOTE /~~---,---.---.------~ I /I I I I I I I I I • PROVIDE MIN. 12' COVER <18' RECOMMENDED) : OVER ALL GRAVITY DRAINING EFFLUENT LINES AND MIN, 36' FROST PROTECTION : COVER OVER ALL NON-DRAINING PRESSURE • LINES, TYPICAL /I /////I I •• /I I • •• •• •• •• •• •• •• •• 1 I I J •• •• •• •• • , , , I I --: .. I I I I I I I I I (~ \ ////I I //./////////( I ••••••• ••••• \ \ \ \ \ 72 <\UICK4 Inflltro.t'ors conFlgur d In se~lo.( o'lstrlloutlort, 0.5 four ro of 18 ~hfll tro. tors eO\h row 0.5 sh n r-------~--~U---~~----~ \ \ NOTE \ r , PROVIDE MINIMUM SCHD 40 EFFLUENT PIPING &, STRUCTURAL SYSTEM COMPONENTS (I,e" TANKS \ I AND MANHOLES) UNDER ALL TRAFFIC AREAS, TYP, -ENCASE IN FLOW' fILL 'w'ITH MINIMUM I 2' HIGH DENSITY BLUE BOARD INSULA nON IF I LESS THAN 36' OF COVER, TYP, , \ \ \ \ \ \ \ I OXY USA VlTP LP field CONN CREEK/CR213 GARFIELD COUNTY, CO SEPTIC LAYOUT PLAN DECEMBER 8, 2008 SCALEr 1~=50' ';1660 Of'flce NORTH I I I 1 I <, f , I ~ I • I I I I I I l I I re air I or 0 I I I --1 /I /I I /I I I I ///~ i A .. ~ ... ", ## //, ////I /I /I //§ \ \ \ B /I I /I /I //I I ~ ~ Dc /////I //I //I /I I ~ ///////////I I /I R \ \ \ \ \ \ /I ,/N \ \ \ \ \ I I I I I ///I serIal distribution configura tlon, alternate e>nd-to-end, typo provide Insp-ectlonlventlng ports \-at each end of Infiltrator trenches o.s shown, typo ........ ( " ) , septic Influent 2'-SCHD 40 pressure tansport Main Min, 8' 4~ SCHD 40 velocity dlsslpo.tor (see detalD 72 QUICK4 Infll tro. tors configured In serial dIstribution 0.5 four rows of 18 Infiltrators e>o.ch row o.s shown QJ ci :J! I 36' typ, 6' Min., typo <10'-12' preferred) ABSORPTION FIELD -PLAN VIEIJ SCALE' 1';20' OXY USA 'w'TP LP Field Office CONN CREEK/CR 213 GARFIELD COUNTY, CO ABSORPTION FIELD -PLAN VIE\.1 DECEMBER 9, 2008 SCALEI 1'-=20' "'""Rn'VIn, MIN, S' OF 4' SCHD 40 PVC "i«',i>i:T,FRoM c" PRESSURE MAIN TO SERIAL m PRESSURE VELOCITY FLO'w' 4' SCHD 40 PVC VENT lIN SPEC nON PORT SOIL CAP DETAIL saturation of upgradlent trench beFore eFFluent is allowed to flow to adjacent downgradlent trench ground surface ---.---soil cap. provide ......M. ln. 5% dro.ino.ge /' "-//~ :0 f--~o-;o 6' M'lniMUM (T) septic influent 10' 12' reCOMMended, typ, I f-:'36;-I d;sk ir scorWy under!J each infiltra.tor trench INFILTRATOR, insto.l} in o.ccorda.nce with "INFIL TRATDR TECHNICAL MANUAL', o.vo.ilo.ble frOM InfHtro.tor SysteMS Inc., 123 ElM Street, Suite 12, Old Saybrook, Connecticut 06475 /' '-,-typico.t inFiltrator trench J ----cross section (one of nine) ABSORPTION FIELD -CROSS SECTION (TYPICAL 3 OF 4 TRENCHES) SOILS LOG NOTES "'\ \ ////OXY USA VTP LP Field Office CONN CREEK/CR 213 GARFIELD COUNTY, CO #1 -GRAY SANDY CLAY LOAM, MODERATELY HARD AND BLOCKY \ I I I ABSORPTION FIELD -CROSS SECTION DECEMBER 9, 2008 #2 -TAN SANDY CLAY LOAM MATRIX VITH SANDSTONE GRAVELS (5r'1M-75M('1) SCALE: 1'=5' NO GROUND\JATER OR HIGH SEASONAL VATER TABLE TO 132' BGS port InFil tra. tor #1 #2 SOILS LOG (SEE NOTES) Duplex Effluent Pumping System for Cold Weather Applications (cw style) Inspection Access--... Riser and Lid Slope Ground Awoy from Riser Splice Box with Cord Grips r---Fiberglass Insulated Gasketed Lid Stainless Steel Bolts . //llfILF' Wi' 77 U Discharqe Assembly ,-Conduit to • ~ Control Panel ~ Conduit Seal OXY USA W'TP LP FieLd Office CONN CREEKICR 213 GARFIELD COUNTY, CD DOSING TANK DETAIL Riser with Grommets (bond to tank adapter with recommended adhesive) ~* Pea Gravel Backfill Provide 1/4" Droin Hole ~ ;;:. iIliiaJt (lI Orenco Systems ( Incorporated 814 AIRWAY AVENUE SUlliERUN, OREGON 97479-9012 TELEPHONE: (541) 459-4449 FACSIMIUE: (541) 459-2884 Tank Adapter ---(cast or bolted) ~: ~ 'e""",,, ""'".,. (,' , •• "') ".!~ , frost line to absorpbon area ~ 1/""'" , eo", ! ~urr * , 1 Tank Adapter (cast or bolted) Inlet Tee /Liquid_ Level 'V high level alarm set to trigger max . ...-/6" above pump-an float level pump-on/pump-off float differential set to provide dose volume of 250 gallons tank to have minimum volume of 1500 gallons /Level Control Float Assembly ~~~ II Delete Check Valve It! 1 Vault Inlet Ports II-f-+----Flow Inducer (2) Duplex OSI Effluent Pump __ , (Orenco PF500511) '-.-""""\. ./I Drain Port '" '1/Filter Cartridge L..-----------------------~---'''-i----Biotube® Pump Vault (Orenco PVU57-2419-L) Patents # 4,439,323 & 5,492,635 Foreign Patents Pending © 1997, Orenco Systems, Inc. * Pea Gravel Backfill Recommended to Help Prevent Frost Heave EDW-TD-1B Rev, 1.0 (2/98) Pump Selection for a Pressurized System Input Parameters Orifice Size 114 inches Residual Head at Last Orifice 2.5 feet Orifice Spacing 2.0 feet Number of Laterals per Cell 1 Lateral Lenglh 31.0 feet 9 Lateral Line Size 2.00 inches Lateral Pipe ClaSS/Schedule 40 Distributing Valve Model None 8 Manifold Length 1.0 feet Manifold Line Size 2.00 inches Manifold Pipe Class/Schedule 40 Lift to Manifold 30.0 feet Transport Length 400.0 feet 0; -'" 7 Transport Line Size 2.00 inches s: Transport Pipe Class/Schedule 40 C 6 Discharge Assembly Size 1.25 inches t:. Flow Meter None inches "C '" 'Add-on' Friction Losses 0.0 feet :z'":: 5, 0 Calculations ·e '" Minimum Flow Rate per Orifice 1.23 gpm c: >-Number of Orifices per Zone 16 C "iii 4' Total Actual Flow Rate 19.7 gpm -NUmber of Unes per Zone 1 (!. % Flow Differential 1st and Last Orifice 1.5 % 3 Lift to Manifold 30.0 feet Residual Head at last Orifice 2.5 feet Head Loss in Laterals 0.1 feet 2 Head Loss Through Distributing Valve 0.0 feet Head Loss in Manifold 0.0 feet Head loss in Transport Pipe 2.9 feet Head loss Through Discharge 1.9 feet Head loss Through Flow Meter 0.0 feet 'Add-on' Friction losses 0.0 feet Total Flow Rate 19.7 gpm TDH 37.4 feet OXY USA WTP LP Field Office CONN CREEKICR 213, GARFIELD COUNTY, CO ) Effluent Pumps PF50 Series PF5007 1I2hp to 3/4hp )"-... ~ II ) f"--/'-. 1'----. II ........ J'-...-7 ) "-..... II '-II '" ) PF5005 f'j--.... /~ 1----t-.. V 1"-) ~ t--.. I~ 17 ...... ~ !\ ) /11 ""-\ /< ~ --V '" '\ ) '" " ) ) , .. .. .. .-o 10 20 30 40 50 60 70 Net Discharge, gpm I--l~ I'-. 80 CB Orenco Systems' Incorporated 814AIRWAV AVENUE SUTHERUN. OREGON 97479 TOll FREE: 18(10)348.9843 TElfPHONE: 154114594449 FACSIMIlE: 15411459·2884 www.orenco.com APPENDIX A SOILS AND PERCOLATION REPORT CRONK CONSTRUCTION INCORPORATED 1129 -24-Road CCI ENGINEERING Grand Jnnction, CO 81505 970.245.0577 ccigj@msn.com Cronk Construction Inc. Fax 970.257.7453 Date: Prepared by: Client: Property address: Tax schedule No.: Legal Descript.: 1.0 Soils Evaluation Glenwood Springs/Aspen 970.947.9640 MontroselDeita 970.252.7470 SOILS AND PERCOLATION REPORT November 25, 2008 Thomas A. Cronk, P.E. 1129 -24-Road Grand Junction, CO 81505 245-0577 OXY USA WTP LP Daniel Padilla 760 Horizon Drive Grand Junction, CO 81506 c/o Doug Dennison Cordilleran, a division of Olsson Associates 82621-1/2 Road Grand Jrmction, CO 81505 9700-263-7800 Conn Creek Road, County Road 213, DeBeque, CO 81630 SESW, Section 5, T7S, R97W, 6TH P.M. The site consists of a parcel ofunlcnown size of uncultivated native soil. The nearest property boundary is approximately 280' west of the area of concern. Drainage in the area of concern is approximately 10%-12% to the west in the area of reference. A percolation test/soils evaluation was conducted on the property of reference on 11125/08 by Tom A. Cronk, registered professional engineer (R.P.E.). The perc excavation trench (excavation A) was located approximately 300' south of the proposed office. Additional perc holes were located 40' east of the trench (excavation B) and 65' east ofthe trench (excavation C). Aperc excavation trench (excavation A) was extended to a depth of 132" below ground surface (BGS). There was no evidence of ground water or high seasonal water table in the open excavation to a depth of 132" BGS. The soils evaluation indicates two distinct soil horizons underlie the site. A lithological description follows: depth (in.) 0" -18" 18" -132" description sandy clay loam, gray; moderately hard and blocky sandy clay loam matrix with sandstone gravels (5mm-75mm), tan Page A-I ofA-2 Perc holes were constructed in excavation A at depths of approximately 18 in., 36 in. and 72 in. Additional perc holes were constructed in excavations Band C at a depth of 36 in. The holes appeared to be weII saturated at the time of the test. Results of the percolation test are shown in Table I. TABLE 1 Percolation Test Results Oxy Office Expansion, DeBeque Depth Time on 11125/08 Time Perc Drop Rate 13:53 14:13 14:40 14:53 min/in (A) 18"·36" 7.0 7.625 8.125 8.5 60/1.5 30 (A)36" -54" 11.0 11.5 12.25 12.625 60/1.625 37 (A) 72" -90" 11.5 12.25 13.125 13.5 60/2.0 30 I (B) 36" -54" I 6.0 I 6.5 I 7.125 I 7.625 I I I I I 60/1.625 I 37 I I ©) 36" -54" I 4.625 I 5.0 I 5.625 I 6.125 I I I I I 60/1.5 I 40 I 2.0 Limitations This document is representative of the site conditions disclosed at the specific time of the site investigation. Site conditions are subject to change from external events both manmade (irrigation or water feature construction) and naturally occurring (flooding or excessive precipitation). Cronk Construction Incorporated is not responsible and accepts no liability for any future variation in site conditions. Cronk Construction Incorporated represents this report has been prepared within the limits prescribed by the owner and in accordance with the current accepted practice of the civil engineering profession in the area. No warranty or representation either expressed or implied is included or intended in this report or in any of our contracts. ;J 0 SEAL ~c...-(~ Thomas A. Cronk, P.E. ;g7 ;;1CS ZOfl', Date Page A-2 of A-2 Garfield County Building & Planning Department 108 8th Street Suite 401 G!enwood Springs, CO 81601-Phone: (970)945-B212 Fax: (970)384-3470 Issue Date: 1/13/2010 Expires: 07/12/2010 Project Address Parcel No. SubdIvision 216921400026 DEBEQUE, CO 81630-Owner Infonnatlon Address Phone OXY USA WTP LP 760 Horizon DR Grand Junction CO 81506 Contractor(s ) Phone Primary Contractor Williams Scotsman (970)241-7110 Ves Proposed Construction I Details Install six pre-fabricated office buildings. Approved under Resolution 2009-76. Valuation: $ 36,090.00 4010 FEES DUE Fee Commercial Building Fee Commercial Building Fee Plan Check Fee Tolal: Tuesday, January 12, 2010 Amount $512.45 $1,200.00 $333.09 $2,045.54 Total Sq Feet: FEES PAID Inv Total Paytype AmtPaidAmlDue .. '. Inv # BLCO-12-09-19943 $ 2,045.54 Check # 1055 Credit Card $1,359.38 $686.16 $ 0.00 Section Township Range Cell Required Inspections: 'a"n_p"Uon ... ", 1 (970)384-5003 Inspection IVR See Permit Record Building Department Copy 2