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Home My WebLink AboutEngineer's Design Specs129 Cerr.¡s L.ANE CARBONDALE, CO 41623 970,309.5259 gnn l¡. esre ERc@c rr¿ er u c o vl sttl'l't(' ('( )Nst 1t-'l'ri\'(r June 17,2023 Project No. C1813 Arvid Johnson cio Carrie Dion carrie@dzremodel ing.conl Subsurface lnvestigation and Onsite Wastewater Treatment System Design 3-Bedroom Residence + 2-Bedroorn Addition 471 CR 112 Garfield County, Colorado Arvid, CBO lnc. performed a subsurface investigation and completed an onsite wastewater treatment system (OWTS) design for the subject residence. The 25,579-acre property is located outside of Carbondale, in an area where OWTSs and wells are necessary, Legal Description: Section: 23 Township: 7 Range: 88 A PCL CONT 25.58 AC SITUATED lN THE NWSE OF SEC 23 Parcel lD: 2393-234-00-360 SITE CONDITIONS The property is currently developed with two residences. Both are served by existing, separate OWTSs An addition to the main resldence is proposed. ïhe existing OVWS serving the main residence was constructed in 1992 and is documented by lndividual Sewage Disposal System (ISDS) Permit 1987 documents the system; however, details of the final inspection are not readable due to how the permit was scanned. The system was sized to accommodate 3 þedrooms. With the addition of 2 bedrooms, the existing OWTS will be replaced. The residence is served potable water from a private well on the property. The well is located southwest of the residence, greater than 500-feet from the proposed OWTS. There is also an abandoned well on the property located to the north of the residence, greater than 300-feet from the proposed OWTS. The proposed soiltreatment area (STA) location has an approximate 5% slope to the southwest. The proposed area is vegetated with native grasses. There should be no traffic or staging of material over the future STA site to avoid compaction of soils prior to construction of the STA. Page2 SUBSURFACE The subsurface was investigated on May 22,2023 by digging two soil profile test pit excavations (Test Pits). A visual and tactile soil analysis was completed by Carla Ostberg at the time of excavation,l The materials encountered in Test Pit #1 consisted of light brown silt clay loam to a maximum depth explored of 7.O-feet. No bedrock or groundwater was encountered. The materials encountered in Test Pil#z consisted of medium brown clay loam topsoil to 2.O-feet, underlain by light brown slit clay loam to a maximum depth explored of 7.O-feet. No bedrock or g rou ndwater was encountered. A sample of the soil was taken from Test Pit #1 at 3-feet below grade. Soil structure grade was moderate. The soilformed a ball and a ribbon 1 to 2-inches in length before breaking. Soil structure shape was blocky and consistence was friable to firm. Soiltexture was more gritty than smooth. A sample of the soil was taken from Test Pit #4 at 2-feet below grade. Soil structure grade was moderate. The soilformed a ball and a ribbon þetween 1 and 2-inches in length before breaking. Soil structure shape was blocky and consistence was firm. Soiltexture was smooth, The soils are consistent with Soil Type 3, Silt Clay Loam, with moderate structure grade. A long-term acceptance rate (LTAR) of 0.35 gallons per square foot will be used to design the STA. View of Test Pit #1 tCarla Ostberg holds a Certificate of Attendance and Examination from the CPOWVisualand Tactile Evaluation of Soils Training. Page 3 Backfill View of Pit Sieved sample --qr*Ì,'*èffiiliffilmlj' ' .. ì;.""f.æ;, '¡¡u( Ribbon I to 2-inches in length before breaking View of Test Pit #1 looking north Page 4 Test Pit #2 Backfill DESIGN SPECIFICATIONS The existing septic tank will be abandoned by pumping the tank and removing it or crushing the top, bottom, and sides and filling in the void with onsite materials. The existing STA will be abandoned in place. Desiqn Calculations: Average Design Flow = 75 GPD x 2 people/bedroom x 3 Bedrooms + 150 GPD (4th and 5th Bedrooms) = 600 GPD LTAR = 0.35 GPD/SF 600 GPD / 0.35 GPD/SF = 1714 SF 1 714 SF x 1 .0 (gravity trenches) x 0.7 (chambers) = 1200 SF The OWTS design is based on 5-bedrooms. An average daily wastewater flow of 600 GPD will be used For the purposes of this OWTS design, Benchmark Elevation has been established as 100' (Finished Floor) of the Addition. The FF elevation of the Original Residence is higher than 100'. CBO lnc. should be notified of any discrepancies or problems with grade elevations of proposed components during installation of the OWTS. OWTS Component Minimum Elevation Primary Tank lnlet lnvert From Addition: Approximate horizontal distance 1 15' / min. 2o/o fall / min. 28.75" Íall From Original Residence: Approximate horizontal fall 98' I min.2% fall/ min. 24.5'fall Ðistribution Box Approximate horizontaldistance 23' I min. 1%fall I min. 2.875" fa|l lnfiltrative Surface Approximate horizontal distance 44' to furthest trench/ min. 1% fall to STA / min. 5.5" fall Page 5 *Elevations are based upon standard OWTS installation practices. Component elevations may change during installation due to site conditions. Minimum grade refers to piping between components. New 4-inch diameter SDR-35 sewer lines must exist the Original Residence and the Addition. Both sewer lines must have a double-sweep cleanout and a minimum 20/o grade to the new septic tank. lf the sewer lines exceed 1O0-feet, additional clean outs must be installed. The system installation must include a 150O-gallon, two-compartment lnfiltrator@ poly septic tank with an Orenco@ Biotube effluent filter on the outlet tee, Risers must bring the manhole lids to grade for access, lf more than one riser is added to the septic tank, an extension handle must be installed on the effluent filter. Effluent will gravity flow to a distribution box, and then to five gravelless chamber trenches. The distribution box must be accessible from grade and must have flow equalizers, or similar product, installed on each outlet pipe in the distribution box to assure equal flow to each trench. Each trench will consist of 20 'Quick 4' Standard Plus lnfiltrator@ chambers for a total of 100 chambers and 1200 square feet of infiltrative area, There must be at least 4-feet of undisturbed soil between each trench. lnspection ports must be installed at the beginning and end of each trench. Ports may be cut to grade and placed in sprinkler boxes for access, COMPONENT SPECIFICATIONS The component manufacturers are typical of applications used by contractors and engineers in this area. CBO lnc. must approve alternative components prior to installation of the OWTS" Requests must be submitted, in writing, to our office for approval prior to installation. Component technical data sheets are available upon request. Construction must be according to the jurisdiction's adopted On-Site Wastewater Treatment System Regulations, the OWTS Permit, and this design. COMPONENT MANUFACTURER MODEL NO.COMMENTS Septic Tank lnfiltrator@ rM-1530-2CP 1500-9allon, 2- compartment poly septic tank Risers and Lids Orenco@ Double-walled PVC risers and lids Effluent Filter Orenco@ 4-inch diameter Fullsize Distribution Box Polylok Distribution box, lids, rises, and (5) flow equalizers Chambers lnfiltrator@ Standard Plus tu0 'QutcK 4' chamþers Page 6 PERMIT APPLICATION INSTRUCTIONS An OWTS Permit Application must be submitted to Garfield County Environmental Health Department. https:/lwww.qarfield-county.com/environmental-health/filesocco/sitesll6/OWTS-Application-Complete- PackelDeg-2019.pdf. lf the OWTS Permit Application will be submitted with a Building Permit Application, it should be submitted directly to Garfield County Building Department. All questions regarding permit submission can be directed to Garfield County Environmental Health Department, 970-945-661 4 x81 50. INSTALLATION CONTRACTOR CBO lnc. expects that the installer be experienced and qualified to perforrn the scope of work outlined in this design. The installer must review this design thoroughly and coordinate with our office in advance of installation. Any additional conditions in this design or county permit must be completed and documented prior to final approval of the OWTS installation. Communication between the installer and this office is expected throughout the installation. INSTALLATION OBSERVATIONS CBO lnc. must view the OWTS during construction. The OWTS observation should be performed before backfill, after placement of OWTS components. Septic tanks, distribution devices, pumps, dosing siphons, and other plumbing, as applicable, must also be observed. CBO lnc. should be notified 48 hours in advance to observe the installation, ln an effort to improve the accuracy of the record drawing, we request that the installer provide a sketch of the installation, including path of the sewer lines, water line installation (if applicable), septic tank location, STA location, and measurements from building corners or another fixed objects on the property. This sketch is most easily provided on Sheet W2.0 of the OWTS Design Packet. Photographs of the installation and final cover are also requested to supplement our installation documentation. REVEG ETATION REQUIREMENTS An adequate layer of good quality topsoil capable of supporting revegetation shall be placed over the entire disturbed area of the OWTS installation. A mixture of native grass seed that has good soil stabilizing characteristics (but without taproots), provides a maximum transpiration rate, and competes well with successional species. No trees or shrubs, or any vegetation requiring regular irrigation shall be placed over the STA. Until vegetation is reestablished, erosion and sedirnent control measures shall be implemented and maintained on site. The owner of the OWTS shall be responsible for maintaining proper vegetation cover. OPERATION INFORMATION AND MAINTENANCE The property owner shall be responsible for the operation and maintenance of each OWTS servicing the property. The property owner is responsible for maintaining service contracts for manufactured units, alternating STAs, and any other components needing maintenance. Geo-fabrics or plastics should not be used over the STA. No heavy equipment, machinery, or materials should be placed on the backfilled STA. Machines with tracks (not wheels) should be used during construction of the STA for better weight distribution. Livestock should not graze on the STA. Plumbing fixtures should be checked to ensure that no additional water is being discharged to OWTS. For example, a running toilet or leaky faucet can discharge hundreds of gallons of water a day and harm a STA. PageT lf an effluent filter or screen has been installed in the OWTS, we recommend this filter or screen be cleaned annually, or as needed. lf the OWTS consists of a pressurized pump system, we recommend the laterals be flushed annually, or as needed. The homeowner should pump the septic tank every two years, or as needed gauged by measurement of solids in the tank. Garbage disposal use should be minimized, and non-biodegradable materials should not be placed into the OWTS. Grease should not be placed in household drains. Loading from a water softener should not be discharged into the OWTS, No hazardous wastes should be directed into the OWTS. Mechanical room drains should not discharge into the OWTS. The OWTS is engineered for domestic waste only. ADDITIONAL CONSTRUCTION NOTES lf design includes a pump, weep holes must be installed to allow pump lines to drain to minimize risk of freezing. The pump shall have an audible and visual alarm notification in the event of excessively high- water conditions and shall be connected to a control breaker separate from the high-water alarm breaker and from any other control system circuits. The pump system shall have a switch so the pump can be manually operated. Excavation equipment must not drive in the excavation of the STA due to the potential to compact soil. Extensions should be placed on all septic tank components to allow access to them from existing grade. Backfill over the STA must be uniform and granular with no material greater than minus 3-inch. LIMITS: The design is based on information submitted. lf soil conditions encountered are different from conditions described in report, CBO lnc. should be notified. All OWTS construction must be according to the county regulations. Requirements not specified in this report must follow applicable county regulations. The contractor should have documented and demonstrated knowledge of the requirernents and regulations of the county in which they are working. Licensing of Systems Contractors may be required by county regulation. Please call with questions. Sincerely, CBO lnc. (!¿xt,{.* []vtflc,t6 Carla Ostberg, MPH, REHS "l t {¡¡åf -{LD tû¡3ìTr B.J[f,]ð¡i iî& ûÀe i ¡ ! (.¡r tÌ+ÉÁfi l Br q r 'fl ¡r¡i f¡!rt6ì þrdr,Þ¡¡ Uu.r¿{d ð¡d¡.r¡ ç,el)¡Fìo llPr}l SÈerr. , )11¡ *i.ri l j \ l¡i;' l:tir'l:.,ir bl¡ rr,. t :..tr, !l:. ...rri,-"r.1. , ;¡7 ""'4'\"t " , l,äitc,: ,, 1, ¡i E'r**rr¿gffiï."*ir,,,,*¡ r,tr.iL lii,irri l';Åi" +. :1:; I i'¡ !;, ,r, i¡ :l i r¡. r;.¡ r I ,',...ii'*lJ *fåt" Ë"5 ó.:ìjiJ3 , .,. 'l l ¡ . À ,|," l3l :r J Ë i I ,,0 ii,* (!.jf¡i¡ t{rtå;ìÕ: ,-..,.¡.. tr¡, ¡!{r."r:: ¡r ¡r rt¡:( i. ¿*¡,ì r¡ _¡iil i!¡ I I 4.1.. r/'|irii¡\r¡i lrl¡?1. \lt-i,a ip.ì¡$..i i,rr,a!,r\ì,r.¡-,1:ìrr'rtf';:1.:i-'AL¡l ,.riar' '1,¡*å r-r ! Ii Legend f 471 coRd 112 471 CR 1t2 i GlqPuhlic.Jlêt'" Garfield County, CO Account Number Parcel Number Acres Land SqFt TaxArea 2019Miil Levy Rtllg64 239323401360 Physical Address Owner Address26 0 011 471 112 COUNTY RD CARBONDALE JOHNSON, H ARVID& JANETJOHNS TRUSTEES 0471 COUNTY ROAD #112 CARBONDALE CO8T623 Overview I I Legend Parcels Roads Parcel/Account Numbers Owner Name i ; Lakes&Rivers * County Boundary Line 2019TotalActual $1,899,3ó0 Last2Sales Value Þate Price 81623 r7/t8/r994 $1,1s0,000 n/a $ 8r.0290 D ate cr e ale d: 3 / 23 / 2O23 Last Data U ploaded: 3/23/2023 3:38;04 AM Deve roped rrtt åShftg,d*f A2A23,3:03 PM qPublic-net - Garfield County, CO - Property Record Card: R111964 G)qPuHic,net'" Garfreld County, CO Summary Account Parcel PropertyAddress l€eal Descript¡on Acres l¡ndSqFt TarÁrca MillLwlt Subdivisíon R1119ó4 2393234003ó0 471 112 COUNTY RD, CApAONDALE CO 81623 Sect¡on: 23 Township: 7 Rarçe 88 A PCL CONT 25.58 Ac SITUAïED lN ïHE NWSE OF SEC 23. 25.579 o 11 81.O290 MewMao OuYner JOHNSON, FT ARVI D & JANET JOHNS TRUSTËES (xTICOUNTYROAD#112 CARBONDÄLECO81ó23 Land UnitType Square Feet Buildinæ Buildirg# SINGLE FAM.REs.-LAND - 1112 (RÊSIDENTIAL PROPÊRTY] 0 Units BuildlûgTyF Abstract Cod€s / (Property Type) Anåitectur?l Style Stories Frame ActualYearBu¡lt Gross Liv¡ngÂrea Total Þleated SqFt Eed¡ooms Baths HeatingFud Heat¡ngType AirConditlùirE RoofType RoofCorrer Bu¡fd¡rgf Un¡tg BulldirgType 1 7 SFR SINGLE FAM.RE9IMPROVEMT}1212 (RESIDENTIAL PROPERTY} I.STORY 1 WOODFRAME t992 3,ilg 3,549 J J.) GAs HTWTRRAD NONE GABLE PRO PANEL 2 1 SFR hþs:i/qpublic.schrÞ¡dercorp.comlApplication.aspf.ApplD=î038&LayerlD=22381&PageTypelD=4&PagelD=9447&Q=1357087608&KeyValue=R111964 114 3123123,3:03 PM Abstrâct Codes / (Property Type) Architectural SMe Stories Frame Actr¡al Ysar Built GræsLivingAre¡ Total Heãted SqFt Bedrooms Baths Heating Fuel HeetingType RoofType RoofCover Actual Values Assessed Year Land Actual lmprovementActuâl Tot¿l Actual AssessedValues AssssedYear Lard Assessed I mprovement Assessed Total Asssed Tax History ïaxYeâr Taxes Billed Sele Date 712012017 7/26t2æ6 a/23/2æ5 7/79/2005 7/79/2æ5 7lI9l2ws 7t79/2æ5 4t29/20c/' 9/1612002 7U7A/7994 7U76/1994 ttl17t1986 qPublic.net - Garfield County, CO - Property Record Card: R1119& SINGLE FAM.RES.IMPROVEMTSI2I2 (RESIDENTAL PROPERTY) 1-SïORY 7 WOODFRAME 1995 1,O& 1,064 2 1 GA5 HOTWATER GABLE PRO PANEL 2U22 $LO,696.64 2027 $1O,833.óO mm $9,2s0.q 2022 $400,000.00 $t4eg,sæ.æ $1,899,3óo.oo ñ22 $27,800.OO $104,210.00 $132,010.ü) 2019 $9,332.s6 zú¿t $400,000.00 $L499,360.æ $1¡993ó0-00 2U¿l $28,óOO.00 $107,200.00 $135,flX).00 2018 $9,371.ó8 Sale Prie Click here to view the tax information for this oarcel on the Garfield Countv Treasurer's website Transfers IÞedType WARRANTYDEED QuitClaim Deed Dæds EASEMENT BOUNDARY L¡NE ADJUSTMENÏ QUITCI.AIMDEED STATEMENTOFAUTHORITY STATEMENTOFAUTHORITY STATEMENÏOFAUTHORITY Deeds AFFIDAVIT Deeds ReceptionNumb€r 895222 78738V ó98853 67970! 679099 679097 649096 652496 67763r'. Book- Pege 1804-831 77L1-255 7777-244 t77r-242 7717-240 1587-524 7421^779 0923{011 o923{O10 o699432t $o $o $o $o $o $o $o $o $o $o $o $o Property Related Public Documents Click here to view Proæ4y Se!4çd.!9Þ!¡gpocuqCnts https:1/qpublic.schrÉ¡dercorp.com/Appl¡cation.aspx?ApplD=1038&LayerlD=22381&PageTypelD=4&PagelD=9447&Q=1357087608&Keyvalue=R111964 214 3n31Z'3,3:03 PM Photos Sketches qPublic.net - Garfield County, CO - Property Record Card: R111964 cFË}Iff{:Èr f ÐFE¡¡ ¡CÊCl.{ Ft'l 5-¡8..1!f :$l:1r :5z ,s .j, N! giÐtY 3å.tg €i AARÁGE FIN AÏ! tJ*j.1 3t4 3n?l23,3:03 PM qPublic.ret - Garfield County, æ - Properly Record Card: Rl11964 n*ì-E SiaRT 1ð#1,8 t' 3s f36-t !t inier¡i:iati*r- p;tt i: sr.ijecl tc r:çnrtant ;h:nÂe an¡ lt; ãctltr¡cv and cc;;oieie¡:e:s ¡annct he g,-t; -;n:eec. User Privacv-P+licv GDPR Privacv lltotice Låst Data Uoload: 312312A23. 73A:O4 AM \.ersian 2.3.25,3 ñ¿'.-!---J h^, !!-l '-t9gglj !;l-t*ffir htþs:l/qpublíc.sch4eidercoe.com/þplication.aspx?ApplD=1038&LayerlÐ=22381&PageTypelD=4&PagelD=9447&Q=1357087608&KeyValue=R111964 414 CBO lnc. 129 Cains Lane Carbondale, Colorado 81623 Phone 970.309.5259 carla.ostberg@gmail.com Johnson Residence 471 CR 112 Garfield County, Colorado Project Number: C1813 Designed by: CBO Drawn by: ÐD w1 .0Date: 0611712023 Sheet 1 0F 4 N 100'To ABANDONED WELL SCALE: 1 = 50'=0" ART STUDIO . N'í',u, >K' Lt,\\r TP1 EXISTIN 3-BEÐROOM RESIDENCE STA EPTIC TANK TP2 \ THE LOCATION OF PROPOSED IMPROVEMENTS SHOWN ARE NOT THE RESULT OF A PROPERTY SURVEY. THE LOCATIONS ARE APPROXIMATE. IT IS THE HOMEOWNERS' DUTY TO ENSURE ALL CONSTRUCTION AND IMPROVEMENT LOCATIONS ARE ACCURATE. PROPERTY LINES AND SËTBACK DISTANCÉS SHOULD BE CONFIRMED PRIOR TO EXCAVATION. SCALED FOR PRINTING ON 11- X 17'PAPER. LINE 100' TO WELL BARN / CDU DRAWINGS MUST BE USED IN CONJUNCTION WITH DESIGN LETTER DATED 061 17 12023 rI SITE PLAN \I\-v 1'; so': o- I Iry2.0 POSED 2-BEDROOM ADDITION .N/,2ffi w2.0 Sheet 2 0F 4 Date: 0611712023 Designed by: CBO Drawn by: DD Johnson Residence 471 CR 112 Garfield County, Colorado Project Number: C1813 CBO lnc. 129 Cains Lane Carbondale, Colorado 81623 Phone 970.309.5259 carla.ostberg @gmail.com N r\\t' //',, EXISTING OWTS TO S BE ABANDONED SCALE: 1" = 20'-0" TP1 EXISTING 3.BEDROOM RESIDENCE \rNr DISTRIBUTION BOX -- WITH ACCESS AT *-- GRADE ilt I I 4' DIA SDR-35 INSPECTION PORT AT BEGINNING AND END OF EACH TRENCH4'DIA SDR-35 SEWER LINE TO STA (MrN. 1% FALL TO STA) I I )I ll I /l 'QUICK-4' CHAMBER TRENCHES, 5 TRENCHES WITH 20 CHAMBERS PER TRENCH FOR A TOTAL OF 1OO CHAMBERS AND 12OO SF.l \l4" DIA SDR.35 SEWER PIPE WITH CLEANOUT MIN 2% FALL TO TANK /l I I I I CLEANOUT (MrN. EVERY 100') II+TP2 I I 4" DIA SDR.35 DISTRIBUTION LINE TO EACH TRENCH (MrN. 1% SLOPE TO TRENCH) EW1 sOO-GALLON, TWO.COMPARTMENT I \l POLY SEPTIC TANK WITH EFFLUENT SCREEN I I I \s.s :¿¿laa l I i I I I I 2-BEDROOM PROPOSED ADDITION BM 100' FF OF ADDITION I ì II I I I I I I 4'DIA SDR.35 SEWER P]PE WITH CLEANOUT MIN 2% FALL TO TANK I CALL 811 FOR UTILITY LOCATESI li'l INFILTRATOR END PLATE 4' DIA SDR-35 DISTRIBUTION LINE TO EACH TRENCH (MtN. 1olo SLOPE TO TRENCH) GRAVELLESS 'QUICK.4' CHAMBER (4'x 3') 4'DIA SDR-35 EFFLUENT PIPE FROM SEPTIC TANK TOP PORT OF CHAMBËR END PLATES FINISHED GRADE 80' 20 CHAMBERS PER TRENCH DISTRIBUTION BOX WITH AT GRADE TO 4TH AND 5TH ;_TRENCHES PES PLACED IN 4'max I L SOIL 4 LIMIT EXCAVATION SCARIFY SU BOX AND COVER BROUGHT TO GRADE CONCRETE LID , DIA SDR.35 INSPECTION PORT tn GRAVELLESS 'QUICK.4' CHAMBER (4'x 3') ..<- UN Z',m _t 4 4' DIA SDR-35 INSPECTION PORT AT BEGINNING AND END OF EACH TRENCH N COMPACT BASE TO SUPPORT BOX USE HOLË SAW TO CUT THRUTOPOF END PLATE SMALL VALVE COVER BOX OR IRRIGATION VALVE BOX AT GRADE ATTACH CAP OR THREADED CLEANOUT ASSËMBLY 4- PVC PIPE CUT TO FIT 4" DIA SDR-35 SEWER LINE (MtN 2% SLOPE TO TANK, MrN. 1% TO STA) SCREENED OR SAND FOR BEDDING 24'MtN. 3" MIN, 8'MIN, BAFFLE OR ANGLED PIPE TO BE USED AT INLET w3.0 BACKFILL OUTLETS oocc Date: A611712023 Designed by: CBO Drawn by: DD Johnson Residence 471 CR112 Garfield County, Colorado Project Number: C1813 CBO lnc. 129 Cains Lane Carbondale, Colorado 81623 Phone 970.309.5259 carla.ostberg@gmai l. com AIL AIL Sheet 3 0F 4 0 DESIGN 3.BEDROOM RESIDENCE + 2-BEDROOM ADDITION 75 GPD x 2 PERSONS/BEDROOM x 3 BEDROOMS + 150 cPD (4th ând 5th BEDROOMS) = 600 GPD WASTEWATER FLOW = 600 GPD TANK: MIN, 15OO GALLONS USE 15OO.GALLON, TWO-COMPARTMENT POLY SEPTIC TANK SOIL TREATMENT AREA (STA): LONG TERM ACCEPTANCE RATE (LTAR) = 0.35 GAL/ SF CALCULATED STA = Q/LTAR = 600 / 0.35 = 1714 SF GRAVITY, TRENCHES = 1714 SF X 1.0 = 1714 SF CHAMBERS = 1714 SF X 0.7 = 1200 SF I 12 SF / CHAMBER = 100 CHAMBERS FIVE GRAVELLESS CHAMBER TRENCHES 20 'QUICK 4' CHAMBERS IN EACH TRENCH TOTAL 1OO'QUICK 4' CHAMBERS SOIL PROFILE TEST PIT NO. 1 SOIL PROFILE TEST PIT NO.2 LIGHT BROWN SILT CLAY LOAM MEDIUM BROWN SILT CLAY LOAM LIGHT BROWN SILT CLAY LOAM NO GROUNDWATER OR BEDROCK ENCOUNTERED DURING EXCAVATION LEçEND Fri| topsoil n silt clay loam1 Ftrl t¡JIL I Tt-o- r.rlÕ 2 3 4 5 þ 7 I I 10 SLIP-ON PVC DO NOT GLUE INSULATED TRACER WIRE 4' DtA SDR-35 SEWER LINE TO TANK FINISHED GRADE HOUSE w4.0 STA TO WATER COURSE 100'N/A STA TO WELL 1 00'631' STA TO HOUSE 20'102', SEPTIC TANK TO WATER COURSE 1 00'N/A SEPTIC TANK TO WELL 50'604' HOUSE TO SEPTIC TANK 5'65' OWTS COMPONENTS AND PHYSICAL FEATURES MINIMUM REQUIRED SETBACK APPROXIMATE PROPOSED SETBACK Date: A611712023 Designed by: CBO Drawn by: DD Johnson Residence 471 CR 112 Garfield County, Colorado Project Number: Cl813 CBO lnc. 129 Cains Lane Carbondale, Colorado 81623 Phone 970.309.5259 carla.ostberg@gmail.com Sheet 4 0F 4