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HomeMy WebLinkAboutEngineer's OWTS Design Plan129 CaINs LANE CARBoNDALE,CO 4I623 970.309.5259 CARLA.oSTBERG@GMAIL. cOM sttl>'t' r(r ( :()NlJt rr,'l' l;\(; April6,2025 Project No. C1947 Patrick Gilson patrick@korultd.com Subsurface lnvestigation and Onsite Wastewater Treatment System Design 4-Bedroom Residence TBD Divide Creek Road Garfield County, Colorado Patrick, CBO lnc. performed a subsurface investigation and completed an onsite wastewater treatment system (OWTS) design for the subject residence. The 3.812-acre property is located outside of Silt, in an area where OWTSs and wells are necessary. Legal Description:Section: 12 Township: 7 Range: 92 LOT 1, JOSEF P. LANGEGGER SUBDIVISION EXEMPTION, AS PER FINAL AMENDED PLAT RECEPTION NO. 927211.3.812 ACRES Parcel lD: 24O1 -124-00-262 SITE CONDITIONS The property is currently undeveloped. A 3-bedroom residence is proposed with a future bedroom contemplated in the future. An existing OWTS may exist on the southern portion of the property. An application was made to Garfield County on September 10, 2020 and is documented under Permit Application Number SEPT-O9- 10-2020. The previous owner had an RV parked on the southern portion of the property and there may be a septic tank in this area. Any existing OWTS component must be abandoned. The residence will be served by a private well on the property. The well is located to the south of the proposed residence. The well is located greater than 5O-feet from the proposed septic tank and greater than 10O-feet from the proposed soil treatment area (STA). Divide Creek crosses County Road 31 1 (Divide Creek Road) south of the property and meanders along the western side of the property. There must be at least S0-feet from any OWTS component to Divide Creek. The proposed STA location is located to the east of the proposed residence. The area parallels an existing driveway (not used as a driveway in the proposed development)and slopes to the west at an approximate 14% slope towards Divide Creek. The proposed area is vegetated sparse 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 by Geo Quest, Project No. 24-156 and is documented in a report dated June 19, 2025 (enclosed). Geo Quest has classified soils as SoilType 3, Sandy Clay Loam. A pressuredosed, over-excavated, unlined sand filter with a minimum 2-feet sand filter material (Secondary Sand) is proposed. A long term acceptance rate (LTAR) of 0.65 gallons per square foot will be used to design the OWTS. DESIGN SPECIFICATIONS Any existing O\Af|S component must be property abandoned, if they exist. Design Calculations: Average Design Flow = 75 GPD x 2 people/bedroom x 3 Bedrooms + 75 GPD (4th Bedroom) = 525 GPD LTAR = 0.65 GPD/SF 525 GPD / 0.65 GPD/SF = 808 SF (2) 10' x 40.5' pressure-dosed, over-excavated sand filter with min. 2' sand filter material The OWTS design is based on 4-bedrooms. An average daily wastewater flow of 525 GPD will be used. For the purposes of this OWTS design, Benchmark Elevation at grade 6173.33' has been established as 100' (Finished Floor, Lower Level). 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 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 will include a minimum 12S0-gallon, two-compartment septic tank with an Orenco@ Biotube Effluent Filter on the outlet followed by a SOOgallon, single-compartment pump chamber with an Orenco@ Biotube Pump Vault and an Orenco@ PF3005 pump. We have specified lnfiltrator@ septic tanks that are typically locally available. The floats should be set to dose approximately 85 gallons each pump cycle, allowing approximately 13 gallons of drain back. The control panel for the pump must be located within line of sight of the septic tank. An electrician will be responsible for wiring the pumping system and the contractorwill be responsible for connecting the plumbing. This office should be contacted for start up of the system to verify its functioning and to perform a squirt test prior to use of the system. OWTS Gomponent Minimum Elevation Primary Tank lnlet lnvert Approximate horizontaldistance 49'l min. 2%fall I mln.12.25" lall Automatic Distributing Valve Approximate horizontal distance 125' I min. 1% rise / min. 15.625" rise lnfiltrative Surface Approximate horizontal distance 3' / min. 1o/o fall to STA / min. 0,375" fall Page 3 Pu Table Effluent will be pumped through a 1.S-inch diameter pump line from the pump chamber to an Orenco@ automatic distributing valve (ADV), model 6402. This pump line must have a minimum 1o/o grdde for proper drain back into the tank after each pump cycle, The ADV must be placed at a high point in the system in an insulated riser with access from grade. Screened rock must be placed below the ADV to support the ADV and to assure the clear pipes exiting the ADV remain visible for future inspection and maintenance. Effluent will be pressure dosed to through 1.S-inch diameter distribution lines to two 10' x 40.5' bed. A minimum of 2-feet of sand filter material will be installed in the over-excavated footprints. Sand filter material must be clean, coarse sand, all passing a screen having four meshes to the inch. The sand must have an effective size between 0.15 and 0.60 mm. The uniformity coefficient must be 7.0 or less. Material meeting ASTM 33, for concrete sand, with three percent or less fines passing 200 mesh sieve may be used. A gradation of the sand media must be submitted to this office prior to obtaining the sand. Laterals must be 1.SJnches in diameter with 5/32-inch diameter orifices facing down, spaced 3-feet on center, installed on the GeoMatrM with the filter fabric over the laterals. Laterals should be placed 2-feet from the edges of the bed with 3.0-feet between the laterals. Laterals will be connected with 1.SJnch diameter level manifolds. Three 39" wide GeoMatrM sheets must be placed on the 1O-foot wide beds. All material associated with the GeoMatrM installation must be proprietary products associated with the GeoMatrM, including orifice shields and geotextile fabric. Manufacturer instructions must be followed regarding installation of the GeoMatrM. Each 1.S-inch diameter lateral must end in a sweeping ellfacing up with a ball valve for flushing. Valves should be placed in a 1O-inch sprinkler box for access. Laterals must be covered by a soil separation fabric and at least 1-foot of topsoil or other suitable soil able to support vegetative growth. There shall be no cobble-sized (>2.5") or greater rock in final cover over the GeoMatrM. lnspection ports must be placed at each corner of each bed. Ports may be cut to grade and covered with a valve box for access, COMPONENT SPECIFICATIONS The component manufacturers are typical of applications used by contractors and engineers in this area. CBO Inc. 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. Max = 144.25 gal. (525 GPD x 25o/o + 13 qallons drain back) Min. 67 gal. (13.5 gal x 4) + 13 oallons drain back Dose Range Dose Setting 85 gallons/dose 13 gallons drain back (125' I 1.5" diameter pump line) 6.5" on/off float separationFloat Separation 500 gallon, single-compartment lnfiltrator@ poly pump chamber 28.5 gallons per minute (GPM)33.4 feet total dynamic head ffDH) Pump Criteria COMPONENT MANUFACTURER MODEL NO.COMMENTS Septic Tank lnfiltrator@ M-1530-2CP Minimum 1250-gallon, lwo-compartment poly septic tank We have specified a 1 S0}-gallon septic tank as ft is locallv available Effluent Filter Orenco@ =ullsize 4" diameter Page 4 Construction must be according to the jurisdiction's adopted On-Site Wastewater Treatment System Regulations, the OWTS Permit, and this design. PERMIT APPLICATION INSTRUCTIONS An OWTS Permit Apptication must be submitted to Garfield County Environmental Health Department. https://wu4qarfield-county.com/environmental-healthifilesqcco/sites/16/OWTS-Application-Complete- Packet-Dec.-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, 970-945-6614 x81 50. 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 Packet. Photographs of the installation and final cover are also requested to supplement our installation documentation. Pump Chamber lnfiltrator@ tM-540-1CP 50O-gallon, single- compartment poly pump chamber Pump Orenco@ PF300511 %HP 120 Volt Biotube ProPak Pump Packaoe Orenco@ BPP3ODD Vault, Filter, Control Panel ldemand dose) Tank Risers and Lids Orenco@ Double-walled PVC Risers and Lids (24" diameter) ADV Orenco@ v64024 1.5" lnlet and Outlets ADV Riser and Lid Orenco@ Double-walled PVC Risers and Lids (30" diameter) Flushing Assembly Orenco@ 1.5" diameter 2) 45" or 90' long sweep only 6 total) GeoMatrM GeoMatrix Systems, LLC 39" wide sheets / Orifice Shieds 243' of GeoMatrM / 78 Orifice Shields Page 5 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 successional species. No trees or shrubs, or any vegetation requiring regular inigation 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 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 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. 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 requirements and regulations of the county in which they are working. Licensing of Systems Contractors may be required by county regulation. Page 6 Please call with questions. Sincerely, CBO lnc. Aa',rtfu Carla Ostberg, MPH, REHS K-CRONK P.0.8orr4o MacA, C() g7 o. z5o.o y z / kacfi ayla.cmn &@oudoola con ReviewedBy: KachaylaR Cron&, PE. Colorado License No. 61440 6il40{*a Pump Selection for a Pressurized System - Single Family Residence Project Gilson Residence Parameters 300Discharge Assembly Size Transport Length Before Valve Transport Pipe Class Transport Line Size Dishibuting Valve Model Transport Length After Valve Transport Pipe Class Transport Pipe Size Max Elevation Lift Manifold Length Manifold Pipe Class Manifold Pipe Size Number of Laterals per Cell Lateral Length Lateral Pipe Class Lateral Pipe Size Orifice Size Orifice Spacing Residual Head Flow Meter 'Add-on' Friction Losses Galculations 1.25 125 40 1.50 6402 3 40 1.50 10 6 40 1.50 6 39.5 40 1.50 5132 3 5 None 0 inches feet inches feet inches feet feet inches feet inches inches feet feet feet 002 0) o,l! foF d G o, .9 o o E o 250 150 100 50 PumpData 510 15 20 25 Net Discharge (gpm) 30 35 40 inches Minimum Flow Rate per Orifice Number of Orifices per Zone Total Flow Rate per Zone Number of Laterals per zone % Flow Differential lsULast Orffice Transport Velocity Before Valve Transport Velocity After Valve Frictional Head Losses 0.68 42 28.5 3 0.8 4.5 4.5 gpm gpm Yo fps fps Loss through Discharge Loss in Transport Before Valve Loss through Valve Loss in Transport after Valve Loss in Manifold Loss in Laterals Loss through Flowmeter 'Add-on' Friction Losses Pipe Volumes 5.7 5.9 6.5 0.1 0.1 0.1 0.0 0.0 feet feet feet feet feet feet feet feet 0 0 Vol of Transport Line Before Valve Vol of Transport Line After Valve Vol of Manifold Vol of Laterals per Zone Total Vol Before Valve Total Vol After Valve )quirements 28.5 33.4 13.2 0.3 0.6 12.5 13.2 13.5 gals gals gals gals gals gals PF3005 High Head Effluent Pump 30 GPM, 1/2HP 115/230V 1@ 60H2,200V 36 60Hz PF3007 High Head Effluent Pump 30 GPM, 3/4HP 23OV 10 60H2, 200/460V 3@ 60Hz PF3010 High Head Effluent Pump 30 GPM, 1HP 230V 1@ 60H2, 200/460V 3@ 60Hz PF3015 High Head Effluent Pump 30 GPM, 1-1t2HP 23OV 1A 60H2,2O0l23Ol460V 3@ 60Hz gpm feet ====: J =:s t =i, t; I I ) I System Curve: - Pump Curve: * Pump Optimal Range: - Operating Point: O o Design Point: m"SYSTEMS LINE 4 N ffi THE LOCATION OF PROPOSED IMPROVEI\4ENTS SHOWN ARE NOT THE RESULT OF A PROPERry SURVEY. THE LOCATIONS ARE APPROXIMATE. IT IS THE HOMEOWNERS' DUTY TO ENSURE ALL CONSTRUCTION AND IIMPROVEMENT LOCATIONS ARE ACCUMTE. PROPERry UNES AND SETBACK DISTANCES SHOULD BE CONRRMED PRIOR TO EXCAVA]ION. SCALED FOR PRINTING ON 1 1" X 17" PAPER. SCALE: 1 = 50'=0"(\ DRAWINGS I\4UST BE USED IN CONJUNCTION WTH DESIGN LETTER DATED 04106/2025 /i SITE PLAN l" - S-0" w1.0I H CBO lnc. 129 Cains Lane Carbondale, Colorado 81623 Phone 970.309.5259 carla.ostberg@gmail.com w2.0 1 l I l I / * GARAGE /, (t4-B \ l I \''*"7 TANK SEPTIC, STA o Gilson Residence TBD Divide Creek Road Garfield County, Colorado ProjectNumber: C1947 Drawn by: Reviewed by: KC DD Oatei 0410612025 Designed by: CBO Sh€et 1 0F 4 ).I no.It ou>-fnI o€I 6 ( --+ F 6175 ()o)Y\ \ \ n-- ir s (t -5o T'c trz F z sgn z (D ox-lo{ zx l.) ( 8;- gE 2f; -;gqdruE $H Ef;r+ ni >@> n4m--{'-ro>o -r \ \.k -\\ \- m \T qt mtf in g (nor Fo-m mr zT rg it gt U'o-Ao ! c) s U,Jn (!cIoz trzm -{o m - tI, mo -o(f\-o< -m=>fld- iF EsIti,; +o ^N-iir>-(fI\mzir -uoz --{ 9=9620-nmxmo5 # c,R szi =TmY=@ =il81n7I?JM--{e I->onza,m'mm|9cl e4e =<qH80 fi-Qo< Iild-oImm-ia 8<e<S-:'m =ono'UI Fafr,Q-{fi g ds Ana =TT 1cll dm!-l -a1\.:rL) =FB *o< Fa>a ao _--\ t,4< .\ rz\ m c;> DIUIDE qeqar &o<o € NO E ru ao rt! tr NqII *>z Q rto..rc)3.T9 Uq 3 i E s,Yg@d.= d E-d * 3'ci A- b) @FS'dE$qE.3 Bboo6 N f;Ei=d9hE Ir{Po>-Vtr€Itr8*ng otlc-.tada€ Et#8H=o9' 4CSr --{ :o>fi*1--11o'- <tAmm=zZ'- 1OO6O5m-ofrlco=3ooT<+ x6=io=RI I I I 70 <_+ ZOsto- o):ng>n -o.oAa-imi€zm AA!-o m ={rorm zoc--l \ )Io u o m ut al< \in ^@EHrZrOTi \.m r.F\9\{\@ ano @mo,o\o'-o\ -o.O "s dg g z o3. ) 5 e&r6fo(Dq:sdo; P* d:.i Fl oR;Rf! +a O 0N !q o oo NoNo onq P<.q.s o@ €ts3. o< ls "ag 552.31's 00"00'19" E 3o -to (2) 10'x 40.5'PRESSURE DOSED, END EACH LATEML IN A 90' THREE SHEETS OF GEOMAI (EACH 39',) ON EACH BED 1.5'DIA SCH.4O PVC PUMP LINE FROM TANK (MIN. ,1% DRAIN BACK TO PUMP CHAMBFR) ADV MODEL 6402 AT HIGH POINT, ACCESSIBLE AT GRADE DIA SCH.4O PVC DISTRIBUTION LINE TO EACH BED 1.5'DIA SCH.4O LEVEL MANIFOLD 1.5" DIA SCH"4O PVC LATERALS W 5i32" ORIFICES FACING DOWN, 3' O.C. LATEMLS PLACED ON TOP OF GEOMAT, UNDER FILTER FABRIC RNISHED GRADE SWEEPING ELL FACING UP WTH A BALL VALVE IN A VALVE BOX ACCESSIBLE AT GRADE /iSTA PLAN \,,-_.-.ffflfrffi INSPECTION PORI AT EACH CORNER OF BED 4' DIA SDR-35 SEWER LINE (MrN 2% SLOPE TO TANK) SCREENED OR SAND FOR BEDDING /T FLUSHING VAL\E DETAIL\3/-----!!r'ldG 3" MtN. I'MtN. /iTRENCH DETAIL\gr____.__-_-.-_ftrffi FABRIC SHEILDS1.5" DIA SCH.4O PVC LATEMLS WTH 5/32" DIA ORIFICES FACING DOWN,3'O.C., ON GEOMAT SND ELTERMTERI 'SECONDffiYSND' EFFECIVE SE r O15.006mm UNFORMil COEFFOENT <7.0 % ENES PNNG #200 sEGSlO PORT AT EACH GRADE 10" OIA VALVE BOX WTH SECURED LID 1.5' PVC SLIP X MALE PIPE THREAD ADAPTER WCAP T TOPSOIL COVER CORNER NOTE: 3 SHEETS GEOMAT ON EACH BED OVER-EXCAVATE APPROX 3'6'BELOW NATIVE GMDE AND FILL WTH MIN. 2'SAND FILTER MATERIAL INSTALL FLUSHING VALVE ECCENTRIC TO CENTER OF VALVE BOX ,1.5" DIA BALL VALVE 1.5" DtA SCH.40 PVC LONG SWEEP 90" ELBOW 1.5" DrA SCH-40 PVC LATERAL w3.0 /TSTA SECTION\t-Tt'fsd 2' r r':, SAND CBO lnc. 129 Cains Lane Carbondale, Colorado 81623 Phone 970.309.5259 carla. ostberg@gmail.com Gilson Residence TBD Divide Creek Road Garfi eld County, Colorado ProjectNumber: C1947 Oalei 0410612025 Drawn by: DD by: CBO by: KC Designed Reviewed Sh€t 3 0F 4 DESIGN PROPOSED 4.BEDROOM RESIDENCE 75 GPD X 2 PERSONS/BEDROOM X 3 BEDROOMS + 75 GPD (4th BEDROOM) WASTEWATER FLOW = 525 cPD USE MIN, 1250 GALLON, TWO-COMPARTMENT SEPTIC TANK FOLLOWED BY A sOO-GALLON, SINGLE-COMPARTMENT PUMP CHAMBER SOIL TREATMENT AREA (STA): LONG TERM ACCEPTANCE RATE (LTAR) = 0.65 GAL/ SF CALCULATED STA = Q/LTAR = 525 / 0.65 = 808 SF 30" DIAMETER PVC RISER STA TO WATER COURSE 50' STA TO WELL '100''133' STA TO HOUSE 10' I 20',10' I 20' SEPTIC TANK TO WATER COURSE 50'50' SEPTIC TANK TO WELL 50'220' HOUSE TO SEPTIC TANK OWTS COMPONENTS AND PHYSICAL FEATURES MINIMUM REOUIRED SETBACK APPROXIMATE PROPOSED SETBACK Finished Grade 12" Minimum Cover Distdbution Pipe Orifice Orifce Shield Native Soil and/or Specified 39" /A GEOMAT SECI]ON\9'-i6rffidiE DISTRIBUTING VALVE ASSEMBLY SPRINKLER VALVE BOX AT GMDESLIP-ON PVC DO NOT GLUE 4'DIA INSPECTION PIPE STA MEDIA SLIP.ON PVC DO NOT GLUE INSULATED TRACER WIRE 4" DIA SEWER LINE FINISHED GRADE 1/4" DIA HOLE DRILLED INTO TWO SIDES OF PIPE FOR VENTILATION (BELOW SLIP ON CAP) TO TANK FINISHED GRADE HOUSE FROM PUMPING SYSTEM /-\ AUTOMATIC DISTRIBUTING\9,-----ftrfr-dffi PVC INLET AND OUTLETS DIA SCH4O VALVE DETAIL /ACLEANOUT DETAIL\9r--rir6-s3c w4.0 TEnsmissive CBO lnc. 129 Cains Lane Carbondale, Colorado 81623 Phone 970.309.5259 carla,ostberg@gmail.com Gilson Residence TBD Divide Creek Road Garfi eld County, Colorado Project Number: C1947 Dale: 04106n025 by: CBO by: KC DD Designed Reviewed Drawn by: Shst 4 0F4 GgoGluasr (970! 318-6784 PO Box 1372 Rifle. CO 81050 geoquestco@pm,me Geo Quest Project No. 24-1-56 Date:6/19/24 Patrick Gilson Parcel No. 2401L2400262 Lot 1 County Road 311 silt, co 81652 RE: On-site Wastewater Treatment System (OWTS) Soil Evaluation Dear Mr. Gilson, Geo Quest was asked to perform a soil evaluation for a proposed OWTS at the property located at Parcel No. 240112400262 along County Road 311 south of Silt, Colorado. This memo presents the investigation details and USDA soil type encountered on May 25,2024. This soil evaluation may be used in OWTS de- sign. Bulk soil samples were collected from excavations that reached a total depth of 10 feet for classification of soil within the treatment zone. These samples were reviewed by Geo Quest using the USDA Soil Tex- ture and Sffucture Method. Generally, the soil on site correlates to a Type 3, Sandy Clay Loam, based on Table 10-1from the Colorado Department of Public Health and Environment, Regulation No. 43 On-Site Wastewater Treatment System Regulation. The soil classification is presented below. Ground water was not encountered in the excavations at the time of the investigatton in the proposed OWTS area. Neither bedrock nor a limiting layer were encountered within the depths explored. Random cobbles and/or boulders were encountered during excavation and should be anticipated during construc- tion. Soil Treatment Area Long-Term Acceptance Rates by Soil Texture, Soil Structure, Percolation Rate and Treatment Level Respectfully submitted, Kevin E. Dye, P.E. Principol Geo Quest, LLC SoilType USDA SoiI Texture USDA Soil Structure-Type USDA Soil Structure- Grade Treatment Level 1 (MPr) Treat- ment Level 1 3 Sandy Clay- Loam Granular 2-Moderate 41,-60 0.35 57r 59 Attachments: Test Pit Location Map GeoGluwr ts70) s'18-6784 PO Box 1372 Rifle, CO 81650 geoquastco@pm,me Approximate Test Pit Location map PROPOSED OWTS LOCATION MAP Joh No.: 24-155 Appcndix A App6'dm.ET6 Pit to€lioE PDpoi.d liom Sh. GEo Qucsr iI Project Number: 24-156 Proiect Name:Gilson CR 311, Silt Citv, State: Silt County: Garfield GEo Glugsr Weather Conditions: Cloudv, Wind, lntermittent Rain Date Drilled:5-25-24 Time: 4:30 pm Drill Ris Sketch of Surface Conditions and Surrounding Relative Features: Enqineer: KED Location: North Excavation Page 1of1 round Water $o"" Date rme: Depth (fee0 Sample Type (1) GPS Coordinates: WGS 84 NO W" Elevation: feet CD -9 .9 o(u (, D(AMPLE: Sandy CLAY FILL, brown-light gray, low plastic, moist, stiff to very stiff, organics, calcareous, odor VERY IMPORTANT!! MARK CHANGE IN SOIL IN GRAPHIC LOG 0 1 2 3 SAND, silt, clay, brown, calcareous, dry to moist, 4 5 Few Random cobbles and boulders encountered from 6 4.5 feet to the bottom 7 I sc I 10 Bottom of excavation at g feet II (1) SPT=Split Spoon, MC=Modified California Barrel, ST=Shelby Tube, CO=Core (Size), GB=Grab/Bulk Sample Project Number: 24-156 Proiect Name:Gilson CR 311, Silt Citv, State: Silt County: Garfield GEO GWEAT Weather Conditions: Cloudy, Wind, lntermittent Rain Date Drilled:5-25-24 Time: 3:45 pm Drill Ris ketch of Surface Conditions and Surrounding Relative Features: Enqineer: KED Location: South Excavation Page 1of1GPS Coordinates: WGS 84 NO WO Elevation: feet g)oJ .9 o(E o round Water $dr" D Date Depth (fee0 Sample Type (1) EXAMPLE: Sandy CLAY FILL, brown-light gray, low plastic, moist, stiff to very stiff, organics, calcareous, odor VERY IMPORTANT!! MARK CHANGE IN SOIL IN GRAPHIC LOG 0 1 2 3 SAND, silt, clay, brown, calcareous, dry to moist, Few Random cobbles and boulders encountered from4 5 2.5 feet to the bottom 6 7 8 sc 9 10 Bottom of excavation at 10 feetII (1) SPT=Split Spoon, MC=Modified California Barrel, ST=Shelby Tube, CO=Core (Size), GB=Grab/Bulk Sample Application Date Parcel Number* Permit Type* Work Class* Buildlng Permit Application 0911012020 240112400262 Septic - New New Project Name Project Address* City* Block Lot Section-Township-Range * Subdivision *z,onrng Applicant / Owner* Owner Mailing rAddress * Owner Phone* Gontractor Contractor Phone Representative (Arch, Eng, etc.)* General Description * $ite Plan* Bin #* Fee Estimation: TBD CR 311 Lot 1 12-07-92 Josef P. Langegger Sub Exemption R- Rural Gary & Leah Shaw PO Box 923 Silt, CO 81652 s703193675 OWNER lnstallation of new OWTS system. r Yes No PIF silt N/A Estimated Plan Gheck Fee Estimated Building Permit Fee Additional Fees Fee Name $ {Due today) $ This Eslimated Permit Fee is based on your estimaled vatoation and is subjeci to change after plan review. Fee Type Fee Amount Septic-New lnstallation Permit Fee Total Additional Fees Due: Estimated Plan Check Fee: Total Fees Due: Payments: Date 09t10t2020 Total Paid: Set $ 123.00 $ $ 123.00 (lncludes Plan Check Fee) Check Number $ 123.00 Please contact Gary at 970-319- 3675 Pay Type Credit Card $ 123.00 Amount Paid $ 123.00 Special Notes Permit Number Assignment Prefix Number Monlh * Year* (z) Permit Number* Received By 09 2Q SEPT 6486 sEPT-09-20-6486 Brooke Winschell G)qPublic.net'" Garfi eld Cou nty, co Account Number Parcel Number Acres Land SqFt TaxArea Mill Levy RO42344 240172400262 4 0 o23 60.7120 Physical O Address SILT OwnerAddress GILSON, PATRICK L &ASHLEY A 110 B COUNTY ROAD 121 CARBONDALECO 81623 TotalAcl.ual Value Overview Legend l_l Parcels Roads Parcel/Account Numbers OwnerName [, lakes&Rivers - CountyBoundary Line $180,000 Last2Sales Date Price 6/74/2024 $350,000 70/29/2079 $120,000 81652 Date created: t2/ I8/2O24 Last Data U pload ed: L2/ L8/2O24 t2:3L:.26 PM Develooed bvti SCHNEIDER GEO9PATIAL 12/18124,4:03 PM qPublic.net - Garfield County, CO - Property Record Card: R042344 Garfield County, CO Summary Account Parcel Property Address Legal Description Acres Land SqFt TaxArea Mill Levy Subdivision View Map Map RO42344 240r12400262 ,srLT,co 81652 Section: 12Township:7 Range:92 LOT l,JOSEF P. TANGEGGER SUBDIVISION EXEMPTION, AS PER FINAL AMENDED PLAT RECEPTION NO. 92721.I.3.AL2 ACRES 3.812 0 23 60.7720 Owner GILSON, PATRICK L & ASHLEYA 110 B COUNTY ROAD L2I CARBONDALE CO 81623 Land UnitType 1AC TO VT 5 AC - 0520 (VACANT LAND) SquareFeet O Actual Values Tax Year 2024 2023 2022 2021 20.20 Actual Value $180,000.00 $180,000.00 $110,000.00 $110,000.00 $20,000.00 https://qpublic.schneidercorp.comiApplication.aspx?ApplD=1038&LayerlD=22381&PageTypelD=4&PagelD=9447&Q=1007948883&KeyValue=R042344 112 12118124,4:03 PM qPublic.net - Garfield County, CO - Property Record Card: R0423214 2024 2023 20?2 Assessed Values TaxYear 2021 2020 Assessed Value Tax History TaxYear $50,220.fi)$50,220.q) 2023 $31,9(x).OO 2022 $31,900.00 2021 $5,800.00 2020 Taxes Billed $3,048.96 Click here to view the tax information for this parcel on the Garfteld Countyiea9uletbryeb$lq Transfers Sale Date DeedTvoe Reception Number Book - Page $2,090.68 $2,357.16 $38e.12 Sale Price 6/14/2024 SPECIALWARRANTY DEED 99705L $3s0,000 6/t4/2024 SUPPLEMENTAL AFFIDAVIT 997050 $o 9t20/20.22 DEATH CERTIFICATE 993305 $o 70/29/2019 SPECIALWARRANry DEED 927504 $120,0oo 4/28/2014 EASEMENT 849919 $o 8/28/20L3 EASEMENT 840875 $o 7/2U2005 GMNTDEED 684437 t736-164 $o 70/LO/2004 DECLAMTION 662069 1-632-745 $o 4/5/2004 Plat 649844 $o 4t5t2004 RESOLUTION 64978s L575-667 $o 3/8/2004 EASEMENT 649796 r575-672 $o 9/rtl2003 AGREEMENT 638036 1526-277 $o 7l2Upa6 WARRANTYDEED 372857 0692-OO02 $295,000 7l13/198r QUITCLAIM DEED 311309 056+OO25 $o 2/25/7980 WARR,ANTYDEED 301967 o544-0343 $o 2/21/t980 AGREEMENT 301821 o54/-OO57 $o t2/28/t979 WARRANWDEED 300578 0547-0669 $soo,ooo Plat Property Related Public Documents Click here toview Propjgly@ Photos No data available for thefollowing modules: Buildings, Sketches. Tlre Garfield tlounty Assessor's Office makes ever-y effori to pi"oduce tlte rnost accuralc iniormation possible. No warranties, expressed or irnplied ere provided for the data herein. its use or ifiterf]retatio{r. Data is subject to constant change and its acclracy and ccmpleteness cannot be guaranieed. I User PrivaEy Peljgy I GDPBfrivacv Notice Last DdaUoload: UL I8 /2O24. IO:31:26 AM 927277 $o Contact Us Developed b'r' SCHNEIDERotottaila!a https://qpublic.schneidercorp.com/Application.aspx?ApplD=1038&LayerlD=22381&PageTypelD=4&PagelD=9447&Q=1007948883&KeyYalue=R042344 212