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Home My WebLink AboutOWTS Design129 CAINS LANE CARBONDALE,CO A1623 970.309.5259 tsar.:r"r' t(' <'( r¡{sl'r.'l'l s'< ; October 22,2021 Project No. C1669 James and Amy Redman oa rks. a myr(@vahoo. com Subsurface lnvestigation and Onsite Wastewater Treatment System Design 2-Bedroom Residence + 2 Future Bedrooms TBD Scutter Lane, Tract 9 Garfield County, Colorado James and Amy, CBO lnc. performed a subsurface investigation and completed an onsite wastewater treatment system (OW¡S) design for the subject residence. The 36.709-acre property is located outside of Rifle, in an area where OWTSs are necessary. Legal Description: Section: 28 Township: 5 Range: 92 A PARCEL OF LAND SITUATE lN THE SE1/4 & swil¿ oF secÏoN 28 AND THE NEl/4 oF SEcÏoN 33 coNT.36.71 AC. +l-, BEING MORE PARTICULARLY DESCRIBED PER SPECIAL WARRANTY DEED RECEPTION NO. 954023, AS CORRECTED BY SURVEYOR AFFID Parcel lÐ: 2127 -284-00-390 SITE CONDITIONS The property is currently undeveloped. A 2-bedroom residence is proposed with the potential to add two additional bedrooms in the future. The residence will be served by potable water from a well which is located on the southeast corner of the property, approximately 1000-feet from the proposed residence. The well is greater than S0-feet from the þroþoséO septic tank and greater than 10O-feet from the proposed soil treatment area (STA). The water iinewill not come within 2S-feetof any OWTS component. The well is not indicated on the site plan due to the distance from the proposed development. The proposed STA location has an approximate twenty percent slope to the east. The area ís sparsely vegetated with native grasses and sage. 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. SUBSURFACE The subsurface was investigated on September 24,2021by digging three soil profile test pit excavalions (Test Pits). A visual and taci-ile soil analysis was completed by Carla Ostberg at the time of excavation.l rCarla Ostberg holds a Certificate of Attendance and Examination from the CPOWVisualand Tactile Evaluation of Soils Training. Page2 The materials encountered in Test Pit #1 consisted of light brown sandy clay loam to a maximum depth explored of 6.0-feet. No bedrock or groundwater was encountered. A small machine made d¡gging difficult. Test Pit #2was excavated to the southeast of the proposed residence, in a large open field. Thís area is outside of the extent of the site plan. Materials encountered in Test Pit #2 were similar to those observed in Test Pit #1. The test pit was excavated to a maximum depth explored of 7.0-feet. No bedrock or groundwater was encountered. The materials encountered in Test Pit #3 were consistent with those encountered in Test Pil#1. The test pit was excavated to a maximum depth explored of 7.O-feet. No bedrock or groundwater 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 extremely firm. Soiltexture was more gritty than smooth. STA sizing is based on Soil Type 3, Sandy 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 OWTS. '{-r j\ ..,. Test Pit #1 Page 3 Sieved sample Ribbon 1-2 inches ç 'l I Area in field to southeast / Test Pit #2 Page 4 .i¡ I, - .. ",Þ- '" -'*' Test Pit #3 backfill DEsrcN sPEcrFrcAT¡oNs Desiqn Calculations: AverageDes'gnFlow=T5GPDx2people/bedroomx3Bedrooms+75GPD14mBedroom)=525GPD LTAR = 0.35 GPD/SF 525 GPD / 0.35 GPD/SF x 1.0 (gravity trenches) x 0.7 (chambers¡ = 1050 SF The new OWTS design is based on 4-bedrooms. An average daily wastewater flow of 525 GPD will be used. Page 5 For the purposes of this OWTS design, Benchmark Elevation at grade 5791' 6' Main Level Finished Floor has been established as 100'. The Lower Level Finished Floor will be at 90' 9 3A" at grade 5782' 3 %" . The sewer line willexit the residence at an approximate elevation of 88' 9 /n" algrade 5780' 3 %". CgO lnc. should be notified of any discrepancies or problems with grade elevat¡ons of proposed components during installation of the OWTS. "Elevations are based upon standard OWTS installation practices.Component elevations may change during installation due to site conditions. The 4-inch diameter SDR-35 sewer line exiting the residence must have a double-sweep clean out and a minimum 2o/o grade to the septic tank. The system installation must include a minimum 1250-gallon, two-compartment poly lnfiltrator@ septic tank with an effluent filter on the outlet tee. Other state-approved poly septic tanks or a Valley Precast concrete septic tank may be substituted, if desired. 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 gravig flow to a distribution box, and then to six 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 consíst of 15 'Quick 4' Standard Plus lnfiltrator@ chambers for a total of 90 chambers and 1080 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 SPECI FICATIONS 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. om lUinimum Ëlevation Primary Tank lnlet lnvert Approximate horizontal distance 70' I min,2o/o ta[ I min. 17.5" fall Distribution Box Approximate horizontal distance 14' / min. 1o/o iall I min. 1.75" fall lnfiltrative Surface Approximate horizontal distance to furthest trench 50'/ min. 1o/ofail / min. 6.25" lall ln¡rxurncruRERCOÍtJlPONENT MODEL NO.lcommenrs Septic Tank llnfiltrator@ rM-1530-2CP h 500-gallon, 2-compartment lpoly septic tank Biotube Effluent Filter lorenco@ lfutt Size Effluent Filter and lhousinq Iank Risers and Lids lorencoo lDouble-walled PVC Risers and llios 1z+" diameter) I Distribution Box leoVrok loistrinution box, (6) flow þqualizers, risers, lid Shambers nfiltrator@ Standard Plus lso 'Quicx a lChambers 'Standard Plus Page 6 Construclion must be according to Garfield County On-Site Wastewater Treatment System Regulations, the OWTS Permit provided by Garfield County Building Department, and this design. INSTALLATION CONTRACTOR CBO lnc. expects that the installer be experienced and qualified to perform 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 paãt<et. photographs of the installation and final cover are also requested to supplement our installation documentation. REVEGETATION 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 successíonal species. No trees or shrubs, or any vegetation requiring regular irrigation shall be placed over the STA. Untii vegetation is reestablished, erosion and sediment control measures shall be implemented and maintained on site. The owner of the OWTS shall be responsible for maintaining proper vegetation cover. OPERATION INFORÍUIATION AND MAINTENANCE The propefi owner shall be responsible for the operation and maintenanc¡ of each OWTS servicing the propertyl The property owìer is responsible for maintaining service contracts for manufactured units, altemating 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 additionalwater 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. 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. PageT 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 OWÍS. Greâse should not be placed in household drains. Loading fom a water sofrener should not be discharged into the OWTS. No hazardous wastes should be directed into the OWTS' Mechanical room drainJshould 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 cãnditions 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. Back¡ll 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 requirements 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. (''¿r,, tft {}s1 bt.xr¿ Carla Ostberg, MPH, REHS CBO lnc.129 Ca¡ns LaneCarbondâþ, Colo{-ado 81623Phme 970.309.5259carla.oslberg@grndl. comNSCALE: 1 = 50'=0"TP3'TP1êI STA./ Res¡oexce r2+UTURE BEDROOMSTHE LOCATIOÑ OF PROPOSEO IMPROVEMÊNIS SHOWN ARENOT THE RESULT OF A PROPÊRTY SURVEY. THE LOCATIONSARE APPROXIMATE. IT IS THE HOMEOWIERS'DUTY TOENSURE ALL CONSTRUCTION AND IMPROVEMENT LOCATIONSARE ACCURATE. PROPERTY LINÊS AND SETSACK DISTANCESSHOULD BE CONFIRMED PRIOR TO EXCAVATION. SCALEDFOR PRINTING ON 1'I" X 1T PAPER.DRAWINGS MUST BE USED INCONJUNCTION WITH OËSIGNLETTER DATÊD 1ON2I2O21A SITE PLANRedman ResidenceTBD Scutter Lane, Tract IGarfield County, ColoradoPmject Numben C1669Oalei 1OZZ2O21Designed by: CBODrawn by: DDw1 .0Sheet 1 0F 4 CBO lnc.129 Cahs LaneCarborúale, Golorado 8'l 623Phone 970.309.5259carla.ostb€rg@gmâil.com4" DIA SDR.35 INSPECTION PORT ATBEGINNING AND END OF EACH TRENCHTP3û'QUICK-4' CHAMBER TRENCHES,6 TRENCHES WITH 15 CHAMBERS PER TRENCHFOR A TOTAL OF 90 CHAMBERS AND 1O8O SF,. TPl +ñN2-BEDROOMRESIOENCE +2 FUTURE BEDROOMS4'DIA SDR.35 SEWER PIPE WTH CLEANOUTMIN 2Ol" FALL TO TANK\,100' MA|N LEVËL FF (5791',6')SCALE: 1'= 20'4'LOWER LEVEL FF sO' g å ' (Szez' e f)/â( PROPOSED OWTSRedman ResidenceTBD Scutter Lane, Tract 9Garfield County, ColoradoProject Number:.C1669l}aþ: 10t2212021I o""isn"a ov, caolDrawn bv: DDw2.0Sheet 2 0F 4 CBO lnc.129 Cains LaneCarbondale, Colorado I 1 ô23Phone 970.309.5259carla.ostberg@gma¡l.com15 CHAMBÊRS PER TRENCHDISIRIBUTIÔN BOX WITHAI GRADE-INFILTMTOR/ eNo er-rrr'outcK{'CHAMBER i4'x 3)4" OtA SDR-35EFFLUENT PIPE FROMSEPTIC ÍANKSMALL VALVE COVËRAOX OR IRRIGATIONVALVÉ BOX AT GRADE4' DIA SDR.35 DISTRIBUTIONLINÊÌO ÊACH TRENCH{MrN 1% SLOPÊ'rO TRENCH)CAP OR THREADEÐCLEANOUT ASSEMBLY4" DtÀ SOR-35 TNSPECTTONPORT AT BEGINNING ANOEND OF ÊACH TREÑCHCÔMPACIBASE TO SUPPORTBOXPVC PIPE CUT TOFITPLACED INUSE HOLE SAW TOCUl THRU TOP OFTOP PORT OFCHAMBER ENDPLAIESENDINOTE: TRENCHES MAY BESTAGGERED TO AVOID TREES^DrS'rRt8UÎoN BOX\:7--.ã1ffiFINISHED GRADE24'MtN.4" DtA SDR-35INSPECIIONPÔRT4'DIA SDR-35 SEWER LINE(MtN 27o SLOPE TO ïANK,MlN. 1% TO STA)tSOIL_lSCREENED ROCKOR SAND FORBEDDING3" ¡ÂN.LIMIIEXCAVAÍION8'MtN.'oulcK4'SCARIFYCHAMBER{4'x3}ACHAMBER TRENCH SEC1ION\át-ffiAIRENCH DETAIL\:/'-ñ&tRedman ResidenceTBD Scutter Lane, Tract 9Garfield County, ColoradoProjectNumber: C1669loaê: 1olz2tzo21t""¡sn"o ov, caolDrawn bv: DDw3.0Sheet 3 0F 4 CBO lnc.1æ Cdns LanêCarbondâle, Cctorado 81 623Phor¡è 970.319.5259ærla.Àstbêrg@gmail.mDESIGN¿¡€EDROOü RESþ€Ì{CE(75 GPD x 2 PERSONS/BEDROOM x 4 AEDROOMS)WASïÊWATER FLOW= 525 GPOSIA TO WAÎER COURSE50'NiASTA TO WELL100'1180'STA TO HOUSEm'70'SEPTIC TANK TO WATER COURSE50'N/ASEPTIC TANK TO WELL50'1 236HOUSE TO SEPTIC TANK5'OWTS COMPONENTS ANDÞHYSI(:AI FFAIIIRFSMINIMUM REOUIREDSFTRÀCXAPPROXIMATE PROPOSEDSFTBACKTANK:MIN. 1250 GALLONSUSE 12sGGALLON. TWO-COMPARTM=NT COÍ.ICRETÊ SEPT|C TANKSOIL IRËATMÊNI ARÉA (S1A):LONG TERM ACCEPIANCE RATE (LTAR) = 0.35 GAU SFCAICULATEO STA = O/LTAR = 525 / 0.35 = 1500 SFGRAVÍÎY, TRENCHES = 1500 SF X 1.0 = 1500 SFCHAMBERS = 1500 SF X 0.7 = 1050 SF / 12 SF / CHAMBER = 88 CHAMBERSSIX GRAVELLESS CHAMBÊR'ÌRENCFÊS15'OUICK 4'CHAMBERS IN EACH TRENCHÎOIAL 90'QUICK 4' CHAMBERSSLIPON PVCDO NOT GLUEINSULATÊDTRACER WIREFINISHED GRADESOIL PROFILE TEST FIT NO, 1SOIL PROFILE TEST PIT NO. 2SOIL PROFILE TEST PIT NO. 304'DIASEWER LINE1LIGHÎ BROV/NSANDY CLAY LOAMLIGHT BROWNSANDY CLAY LOAMLIGHT BROWNSANDY CLAY LOAMTO TANKTO HOUSE234/ICLEAN OUT DETAILBOX AND COVER BROUGHT TO GRADECONCRETE7ñıãñË-I910NO GROUNDWATER OR BEDROCK ENCOUNTEREDDURING €XCAVATIO{LEGÊNDFl *no,clay loamBAFFLE ORANGLED PIPETO BE USEDAT INLETADISIRIBUÎON BOX DÊTAIL\9t-ÌræOUILEÏSooooRedman ResidenceTBD Scufter Lane, Tract 9Gârfi eld County, ColoradoProjêclNumber: C1669Dãlei 1012212021Designed by: CBODrawn by: DDw4.0Sheet 4 0F 4 G)qPublic.net'" Garfield County, CO Account RO84óó8 Number Parcel 2727284f0,39O Number Acres 37 [andSqFt O TaxArea O2t 2019MillLevy ó7.8830 Deve roæd bv ¡f ¡l) gçþErq,4çr Physical Address Owner Address o RIFLE REDMAN, JAMES ROBERT & AMY RENEE 1ó809 N MAYFAIR DRIVE COLBERTWA99OO5 2O19Total Actual Value Overuiew ,# Legend i- I Parcels Roads Parcel/Account Numbers Hlghways . - LimitedAccess - Highway MajorRoad Local Road Minor Road Other Road Ramp Ferry Pedestrian Way Owner Name Lakes & Rlvers - CountyBoundary Llne $2,040 Last2Sales Date Price 6/30/2021 $133,000 6/8/2021. $O 81ó50 ùate crealed: IUU2O27 Lâst Datâ Uploaded: 7Ut/2O27 2:O7:54 AM 111'1121, 12:25 PM Summary Account P¡rcel Propcrty Address þsâl Descrlpt¡on Acres Lând SqFt Tax Area Mlll Levy SuMlv¡slon Land UnltTyf)è Square Feet ActualValues Assessed Yeer Land Actuel lmprovement Actual Total Actuel Assessed Values AssessedYear Land Assessed lmprovement Assessed TotalAss$sed Tax History qPublic.net - Garlield County, CO - Property Record Card: R084668 G)qPublic.net'.' Garfi eld County, CO R084óó8 ?t2728/()o390 ,R|FLE,CO 81ó50 Section: 28 Township: 5 Range: 92 A PARCEL OF LAND SITUATE lN THE SË1/4 & SWl/4OF SECTION 28 AND THE NE1/4 OF SECTION 33 CoNT. 3ó.71Ac. +/-, EEING MoRE PARTICULARLY DESCRIBED PER SPECIAL WARRANW DEÊD RECEPTION NO. 954023, AS CORRECTED BY SURVEYOR AFFID 36_709 0 21 ó7.8830 Vrcs/ M¡¡r Owner REDMAN, JAMES ROBERT & AMY RENEE 1ó809 N MAYFAIR DRIVE COTBERT WA 9?OO5 GRAZING tAND-AGRICULTURAL - 4147 (AGRICULTURAL PROPERTY) 0 2027 $20¿to.00 $0.00 12,o4o.oo 2027 $s90.00 $o.oo $590.00 An error has occurred wh¡le try¡ng to displây this part of the påge. We apologize for any inconvenience. Click hr:re lo vi(r$r thc tâx i'lfo.,n¿tìon fo¡ thil p¡rccl on the Gari¡cl(l Coutrty-frgll:UfSf:lryS!:¡LS Transfers sa¡eDate DeedTyÞe 6/3012021 SPECIALWARRANÏYDEED 6/8I2O2L STATEMENTOFAUTHORIW 6/A/2021 DECLARATION 613/2027 AFFIDAVIT 5n2t2021 AFFIDAVIT 4/7/2021 SPECIALWARRANTY DEEÐ 4/7/2O2I EASEMENT 1/2912079 BARGAINANDSALEDEED 1/23/2OI9 EASEMENT 1123/2019 EASEMENÏ I/2312079 EASEMENT UL8/2OI9 STATEMENTOFAUTHORITY IßI2OI9 STATEMENTOFAUTHORITY 1O{78/2O7A QU|ÏCLATM DEED IO/78/2O1A WARRANTYDEED to/18/20r8 QUITCLAIM DEED Reception Number 959442 ,57913 95774Q 957594 956337 954423 ,5407'1 917053 9\7452 917058 q17057 91ó80ó t1óJ 13 913181 913179 913176 Book - Page Sale Price $133,000 to So $o $o $o $o $o $0 $o $o $o $o $0 $9ó0.000 $o https://qpublic.schneidercorp.com/Application.aspx?ApplD=1038&LayerlD=22381&PageTypelD=4&PagelD=9447&Q=1590794091&KeyValue=R0846... 112 1111121,12:25PM qPublic.net - Garfield County, CO - Property Record Card: R084668 10/ta/20L4 totLT/20ta 10tL7/2018 70/15/2078 70.t1512018 to/10/2078 ß/2/20ß 5t5t2015 5/y20t4 3t20t2009 17tr7/2æA 8/2U2æ7 8t2t/2007 8/13/2007 7/30/2007 3t25t2003 3/25t2003 5n4/2002 5AO/2002 lo/24t2001 5/14/7997 8123/79s2 8/23/1982 5/2411982 4/76t7973 72t3'/t969 QUITCTAIM DEED STATEMENTOFAUTHORIW STATEMENT OF AUTHORIÏY BARGAINANDSALE DEED SIATEMENTOFAUTHORITY STATEMENTOFAUTHORIry QUIICIAIMDEED PERSONAL REP DEED SARGAIN AND SALE DEED EASEMENT STATEMENT OF AUTHORITY . QUITCTAIM DEED BOUNDARY LINE ADJUSÌMENT BOUNDARY LINE ADJUSTMENT QUITCLAIM DEED QUITCLAIM DEED WARRANTYDEED QUITCTAIM DEËD WARRANryDEED WARRANÏYDEED WARRANÏYDEED WARRANWDEED WARRANTY DEED RESOLUÏION WARRANryDEED STATEMENT OF AUTHORITY 973174 973175 973773 973182 913177 913178 9L3L72 862624 848?05 765336 759L25 731975 737974 737972 731913 625r42 625r47 603341 ó03340 591748 5 10781 339018 33901ó 328082 2580ó5 I 13 183 1458-198 1458-795 7354-775 1354-774 1302-480 1025-555 o62t-o6t5 0ó21-0ó09 0ó00-01ó2 o443-O577 $7s,000 $25,000 $o $o $o $o $o $o So $o $o $o $o $o $o $o $o lo $o $o $o $0 $o $72.sOO $ó4,000 $o Nodata arâ¡låble forthe followlng module¡: Buildings, Photos, Sketches' C)*J'ts;f,çl User Privacy Policy GDPR Privacy.Nor¡ce La st Dâ tã U p I o a.d : .7 7 I 1 12- 92 I, J.2 :.O.7 : 5-4 AM ,: i . 1, :,ì : ! l. , https://qpublic.schneidercorp.com/Applicãtion.aspx?ApplD=1038&LayerlD=22381&PageTypelD=4&PagelD=9447&Q'1590794091&KeyValue=R0846.212