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Home My WebLink AboutOWTS Design1 29 CAINS LANE CRReoNoaLE. CO 41623 970.309.5259 CARLA. oSTBERG@GMAI L. COM s;t.:l>'t'I( ('( ):'-ir -l-'l't:\'( ; July 12,2022 Project No, C1737 Mike Husaluk husaluk@rof.net Subsurface lnvestigation and Onsite Wastewater Treatirent Systen-i Design 3-Bedroom Residence Lot 22, Ranch at Coulter Creek TBD Saddle Drive Gadield County, Colorado Mike, CBO lnc. performed a subsurface investigation and coi-:rpleted an cnsite wastewater treatment system (OWTS) design for the subject residence. The 4.'143-acre property is located outside of Glenwood Springs, in an area where OWTSs are necessary. Legal Description: Section: 7 Township: 7 Range: 87 Subdivision: RANCH AT COULTER CREEK PUD Lot:22 AS PER FIRST AMENDED FINAL PLAT RECEPTION NUMBER BB9B91 4.143 ACRES Parcel lD: 2391 -07 1-01-022 The property is currently undeveloped bedroom in the future. SITE COND]TIONS A 2-bedroom residence is proposed with the potential for a 3'd The residence will be served potable water from a com;nunity water system. The water line will enter the property from the north off Saddle Drive and will not come within 25-feet of any OWTS component. The proposed soil treatment area (STA) location has an approximate ten percent slope to the south and is vegetated with native grasses and sage. There should be no traffic or staging of material ove¡ the future STA site to avoid compaction of soils prior to construction of the STA. SUBSURFACE The subsurface was investigated on June 25, 2022 by digging three soil profile test pit excavations (Test Pits). A visual and tactile soil analysis was completed by Carla Ostberg after excavation of the Test Pits.1 The Test Pits were over-excavated to the extent they could get to the required depth but widened considerably to remove the large basalt boulders encountered during excavation. I Carla Ostberg holds a Certificate of Attendance and Examination from the CPOW Visual and Tactile Evaluation of Soils Training. Page 2 The materials encountered in Test Pit #1 consisted of dar-k brown topsoil to 2.5-feet, underlain by white to tan, dense calcareous clay matrix to a maximum depth explored oÍ i O-feet. No bedrock or groundwater was encountered. The materials encountered in Test Pit #2 consisted of dark brown topsoil to 2.S-feet, underlain by white to tan, dense calcareous clay matrix to a maximum depth explored of B-feet. No bedrock or groundwater was encountered. The materials encountered in Test Pit #3 consisted of dark brown topsoil to 2.5-feet, underlain by white to tan, dense calcareous clay matrix to a maximum depth explored of 6-feet. No bedrock or groundwater was encountered. White are many sporadic Basalt boulders, there is sufficient soils to provide wastewater treatment. lt should be noted that these Test Pits are significantly larger than a normal test pits and resulted in more rock (boulders) removed from the excavation. STA sizing is based on Soil Type 24. A long term acceptance rate (|-TAR) of 0.5 gallons per square foot will be used to design the OWTS, Backfill from Test Pit #1 Test Pit #1 (significantly larger than a typical test pit) Sidewall of test Pit / Calcareous clay matrix is dense in areas Pagc 3 Sieved sample Test Pit #2 Ribbon less than 1-inch in length 4/r'.' i: i:, : Backfill Page 4 *, .Brr*o+ffi+ê; idewall Backfill DESIGN SPECIFICATIONS Desiqn Calculations: Average Design Flow = 75 GPD x 2 people/bedroom x 3 Bedrooms = 450 GPD LTAR = 0.5 GPD/SF 450 GPD / 0.5 GPD/SF x 1.0 (gravity trenches)x 0.7 (chambers) = 630 SF The OWTS design is based on 3-bedrooms. An average daily wastewater flow of 450 GPD will be used Forthe purposes of this OWTS design, Benchmark Elevation at grade 7461'has been established as 100' as Finished Floor (FF) of the residence. CBO lnc. should be notified of any discrepancies or problems with grade elevations 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. Minimum grade refers to piping between components. 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 1000-gallon, two-compartment septic tank (state-approved concrete or poly)with an 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. OWTS Component Minimum Elevation Primary Tank lnlet lnvert Approximate horizontal distance 15' / min. 2% fall I min. 3.75" fall Distribution Box Approximate horizontal distance 40' I min. 1% fall I min. 5" fall lnfiltrative Surface Approximate horizontal distance to furthest trench 35' / min. 1% fall / min. 4.375" fall Ptrgc 5 Effluent will gravity flow to a distribution box, and then io four 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 equalflow to each trench. Each trench will consist of '14 'Quick 4' Standard Plus lnfiltrator@ chambers for a total of 56 chambers and 672 square feet of infiltrative area. There must be at least 4-feet of undisturbed soil between each trench. The infiltrative area should be placed just below the topsoil horizon, on top of the calcareous clay matrix horizon, at approximately 2.5 to 3.0-feet below native grade. inspection 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. GBO lnc. must approve alternative components prior to installation of the OWTS. Requests must be submitted, in writing, to our office for approvaì prlor to installation. Component technical data sheets are available upon request. Construction 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 CONTRACTO R CBO lnc. expects that the installer be experienced and qualifìed to pedorm 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 drawi;rg, we request that the installer provide a sketch of the installation, including path of the sew¿r lines, water line installati<ln (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. LCOMPONENTMANUFACTURERIIODEL NO COMMENTS Septic Tank Valley Precast or lnfiltrator@ Item # 1000T-2CP or Item # 1060-2CP 11000-gallon, 2- lcompa rtment septic tank Risers and Lids Orenco@ lDouble-walled PVC lrisers and lids Effluent Filter Orenco@ 4-inch diameter lFutt size I Distribution Box Polylok lDistribution box, lids, lrises, and (4)flow lequalizers Chambers lnfiltrator@ Standard Plus 156 'Quick 4' Page 6 REVEGETATION REQU IREMENTS 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 oí 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 sediment 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 propefi. 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. lf an effluent filter or screen has been installed in the OWTS, we recommend this fìlter or screen be cleaned annually,orasneeded. lftheOWTSconsistsofapressurizedpumpsystem,werecommendthelateralsbe 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 softe¡er 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 aiarm notification in the eventof excessively high- water cônditions 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 slrould 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 requirements and regulations of the county in which they are working. Licensing of Systems Contractors may be required by county regulation. Page 7 Please call with questions Sincerely, CBO lnc. Carla Ostberg, MPH, REHS ('.rr,',(tt (.t:'l út rç II2.BEDROORESIDENCE +1 FUTUREBEDROOMü,A/^ SITE PLAN$---trot 2/-aì:{Il-.-TP3+,1601ROPERTY LINEUILDING ENVELOPE^[ot 20DRAWINGS MUST BE USED INCONJUNCTION WITH DESIGNLETTER DATED 07 I 12120221- = 50'-0"Husaluk ResidenceLot22, Ranch at Coulter CreekGarfield County, ColoradoProject Number: C1737SEPTICTANKqúTP1/430CBO lnc.129 Cains LaneCarbondale, Colorado 81 623Phone 970.309.5259carla.ostberg@gmail.com \r'ì/-v4" DIA SDR-35 SEWER PIPE WITH CLEANOUTMIN 2% FALL TO TANK\1 OOO.GALLON, TWO-COMPARTMENTSEPTIC TANK WITH EFFLUENT SCREEN4" DtASËWER LI(MlN. 1% FALL TO D-Box)DISTRIBUTION BOXWITH ACCESS AT GRADE4'' DIA SDR-35 SEWER LINE TO EACH TRENCH(MlN. 1% SLOPE TO TRENCH)ROPERTY LINEEBMl00'FF 7461',4'DlBEGIñÉela' Élfitñlrerø¡¡o7/Kte'QUICK-4'CHAMBER BED. 4 ROWS OF 1CHAMBERS = 56 CHAMBERS = 672 SFÀ")<¿X4Husaluk ResidenceLot22, Ranch at Coulter CreekGarfield County, ColoradoProject Number; C1737NNYEEßlrctø1d,EW,W741t0IIù6osCBO lnc.129 Cains LaneCarbondale, Colorado 81 623Phone 970.309.5259carla.ostberg@gmail.comILDING ENVELOPE III14 CHAMBERS PER TRENCH4' DIA SDR-35 INSPECTIONPORT AT BEGINNING ANDEND OF EACH TRENCHCOMPACTBASE TO SUPPORTBOXUSE HOLE SAW TOCUT THRU TOP OFEND PLATECBO lnc.129 Cains LaneCarbondale, Colorado 81 623Phone 970.309.5259carla.ostberg@gm ail. com4'DIA SDR.35EFFLUENT PIPE FROMSEPTIC TANKDISTRIBUTION BOX WITHACCESS AT GRADEES PLACED IN4'minSMALL VALVE COVERBOX OR IRRIGATIONVALVE BOX AT GRADEATTACH CAP OR THREADËDCLEANOUT ASSEMBLY4" PVC PIPE CUT TOFITTOP PORT OFCHAMBER ENDPLATESSEWER LINE TO 4TH TRENCHFINISHED GRADE4- DIA SDR-35 SEWER LINE(MtN 2% SLOPE TO TANK,MrN. 1% TO SïA)SCREENEDOR SAND FORBEDDING24" MIN3'MtN.NOTrcsru/-ì INSPECTON PORT DETAILNOT tO WB" MINrI TRENCH DETAILHusaluk ResidenceLot22, Ranch at Coulter CreekGarfield County, ColoradoProject Number: C1737BACKFILL SOIL TREATMENT AREA (STA):LONG TERM ACCEPTANCE RATE (LTAR) = 0.5 GAL/ SFCALCULATED STA = Q/LTAR = 450 t0.5 = 900 SFGRAVITY, TRENCHES = 900 SF X 1.0 = 900 SFCHAMBERS = 900 SF X0.7 = 630 SF I i2SF / CHAMBER = 53 CHAMBERSFOUR GRAVELLESS CHAMBER TRENCHES14'QUICK 4'CHAMBERS IN EACH TRENCHTOTAL 56'QUICK 4' CHAMBERSSOIL PROFILE TEST PIT NODARK BROWN TOPSOILWHITE TO TAN, DENSE, CALCAREOUSCLAY MATRIX WITH SOME LARGEBASALT BOULDERSSOIL PROFILE TEST PIT NO.2DARK BROWN IOPSOILWHITE TO TAN, DENSE, CALCAREOUSCLAY MATRIX WITH SOME LARGEBASALÏ BOULDERSSTA TO HOUSESTA TO WELLSTATO WATER COURSE20'1 00'0150'SOIL PROFILE TEST PIT NO. 3DARK BROWN TOPSOILWHITE TO TAN, DENSE,CLAY MATRIX WITH SOfVBASALT BOULDERS234Ê6FIUI.ULLIFo_LUo7oILEGENDFIl.-ltopsoilcalcareousclay matrix10NO GROUNDWATER OR BEDROCK ENCOUNTEREDDURING EXCAVATIONCBO lnc.129 Cains LaneCarbondale, Colorado 81623Phone 970.309.5259carla.ostberg@gmail.com/^ SOILS LOGxol lo sc t-EHusaluk ResidenceLot22, Ranch at Coulter CreekGarfield County, ColoradoProject Number: C1737{¡':t'.trt(' (.( }:\s¡'t..r¡s-( G)qPuhlic.net " Garfield County, Cc R0.tr1286 2 j91ijT iû1t25 Overview R041 284 910710102 R 00 9570 239 1 0 8200259 4 WILD ROSES LLC ?0 19 Tota I Actua I Value -r+r Legend Parcels Roads Parce l/Account Numbers Highways '=' Limited Access Highway Major Road Loca I Road Minor Road Other Road Ranrp Ferry Pedestrian Way Owner Name Lakes & Rivers - County Boundary Line R041 2 82 239107 101021 g..<.cn,: YCts Jq tn vr .lJ' "¡tlj:< (J'È. :R04127.9 : .239107101018 " R041 281 . ,-¡$ Å4&tt Pll Account R041283 Number Parcel 239107101022 Number Acres 4 Land SqFt 0 TaxArea AII 2019 Mill Levy 79.7760 Physica I Address Owner Address OSADDLE DR CARBONDALE HUSALUK. MICi.JAEL & BARBARA PO BOX 5ó5 ASPEN CO 81ó12 B\623 $180,250 Last2Sales Date Price \r/L5/2o21- $490,000 2/14/2020 $2ss,000 D ate cr e ated: 6/26/ 2A22 Last Data U ploaded: 6/25 /2022 2:05:42 AM Deve roped ou (.I 9çþ,lpidçl 6/26122,9:41 AM Account Parcel Property Address Legal Descr¡ption Acres Land SqFt Tax Area Mill Levy Subdivision Vìew Map Owner HUSALUK. MICHAEL éi BARBARA PO BOX só5 ASPEN CO 81ó12 Land UnitType VACANT RES LOTS- 0100 (VACANT LAND) Square Feet 0 Actual Values Assessed Year Land Actual lmprovement Actual Total Actual Assessed Values Assessed Year Land Assessed lmprovement Assessecl Total Assessed Tax History Tax Year Taxes Billed qPubl¡c.net - Gafield County, CO - Properly Record Card: R041283 G)qPublic.net'" Garfield County, CO Summary R041283 239707IO7022 OSADDLE DR,CARBONDALE.CO 81ó23 Section: TTownship: 7 Range: STSubclivision: RANCH ATCOULTER CREEK PUD LOt: 22 AS PER FIRST AMENDED FINAL PLAT RECEPTION NUMBER 889891 4.143 ACRES 4.743 0 T1 79.7760 RANCH AT COULTER CREEK PUD 2027 s3,9ó3.28 2022 $160.2s0.00 $0.00 $180,25o.00 2022 t52.270.0A s0.00 $s2,27O.OO 2020 $1.432.2O 202! $171.300.00 $0.00 $ 171,300.00 ?o2r $49.ó80.00 50.00 $49,ó80.00 2079 $1,392.32 2020 $ós,380.00 $o.oo $65,380.00 2020 $18.9ó0.00 $o.oo $18,9ó0.00 2018 $2,77e.s6 Sale Price $490,000 $255,00O $o $2ó5,00o Cl¡ck here to view the tåx infornìåtion for this p_êIgg.l-g-Al]lç_qnúSl_d.]¡!ljl!y t lètrle!51ryS-þlj¡e. Transfers Sale Date Deed Type Tt/L5/2O2T SPECIALWARRANTY DEED 2/74/2024 WARRANTYDEED 4/26/2078 DECLARATION 4/2/201-8 WARRANTY DEED Receptiôn Number 966522 931679 Book - Page 906379 9050ó 1 https://qpublic.schne¡dercorp.com/Application.aspx?ApplD= 1 038&LayerlD=22381&Pagefype lD=4&PagelD=9447&Q='1489741669&KeyValue=R041283 112 6126122,9:41 AM qPubl¡c.net - Garfield Corinty, CO - property Record Card: R041283 3/8/2077 3/7/201.7 8/7/2076 L2/20/2072 77/24/2009 1-U24/2009 1,7/24/200? 17/76/2007 rI/6/2006 6/7/2004 5/6/20A4 5/6/2004 3/1"5/2004 3/75/2004 3/15/2004 3/15/2004 3/75/2004 3/15/2004 3/75/2004 3/75/2004 3/15/2004 2/2/2OO4 2/2/2004 6/76/2003 7/28/2002 u7s/2OO2 7/t5/2002 r/15/2002 r/75/2002 7/15/2002 6/rl7998 6/7/7998 4/72/1994 8/29/7984 72/rt/1962 SPECIALWARRANTY DEED Plat RESOLUTION Warranty Deed Statement Of Authority Quit Clâim Deed SpecialWarranty D*:cl BARGAIN AND SALE DEED WARRANry DEED DEED AGREEMENT DEED DECLARATION DECLARATION COVENANTS AGREEM ENT DEED DEED DEED DEED SUBDIVISION IMPROVEMENTS RESOLUTION RESOLUTION RESOLUTION SPECIALWARRANTY DEED BARGAIN AND 5ALE DÊED WARRANTY DEED PËRSONAL REP DEED BARGAIN AND SALE DEED PERsONAL REP DEED EASEMENT EAsEMENT DEATH CERTIFICATE Deeds WARRANTY DEED 890045 8898e 1 88047i1 8?8786 780427 /'8A426 780425 738251 7 10699 653778 654195 653777 65377 6 653775 653774 6s3773 653772 65377 1 653774 65376<) 653767 646747 646146 629789 s9ó800 760356 595826 595825 595824 595823 2197 1 r 1,86I-466 15 95 - L98 15 ?ó-838 1595-18 1 t595-178 7595-175 1595-1.46 1595-3.44 1595-I40 1,595-739 1s 95- 138 1595-L37 15 95 - 119 I 5 59-435 1559-42L 1462-663 1326-287 1,321-704 1321.-702 L321-696 132L-695 1070-0089 1070-0081 094ó-0803 o6s5-0987 o346-OO42 $210,000 $480,000 $4,000.000 94,000,000 $o $o $o $o $o $o $o $o $o $o $o $o $o $o $0 $o $o $o $o $o $o $o $o $o $o $o $o $o $o $0 $o Property Related Public Documents Click here to view Propsl!y_BCb!9!_e!-Þ]j!_Q9s!r!9$t Photos .,:--... .- ::i;t--:.. " 'i:l:r,i' _<qs¡ No data available for the following modules: Buildings, Sketches. i ì::, '.', , ": ... ,:::;.i' .: . U.¡e.{-P¡ryac-t_!1q1ir-_': QQ!.R Prlvaqy NoticS t¡Sl_Q¡ l¿t-tlt¡..1_qrit t. 6 / 2 5 i Ì.Q 2 ) I .Ì : ù'i : l LÌ .4 N4 C)9..l.g'g'.,4çl https://qpublic.schneidercorp.com/Appl¡cat¡ôrr.aspx?ApplD=1 038&LayerlD=22381&PageTypelD=4&PagelD=9442&e= 1489741 669&KeyValue=R0412g3 2t2