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Home My WebLink AboutSubsurface Investigation & OWTS Design Report 08.5.11nsJt(e ) !ir ::, r:.1!'i. .: :: i 1l:: iil i .,:. ì! : i i.: ::,::.1' ì ii,i-ry P0 Box 2844 Glenwood Spdngs, C0 81 602 Ph 970.618.5033 Fax 303.216-2796 August Sth 20II Project No. 1694 Curtis Ercanback 1015 Hickory Drive Rifle, CO 81650 Subsurface Investigation and Onsite Wastewater System Design Shop Construction 585 Cindy's Way Garfield County, Colorado Curtis, ALL SERVICE septic, LLC performed a subsurface investigation and an onsite wastewater system (OWS) design for the subject residence. The property is located outside of Rifle, in an area where OV/S and wells are necessary. A shop is proposed to the north of the residence. Design parameters will be used from our original investigation for residence. SITE CONDITIONS A single-family residence presently exists and a shop have several sinks, and a bathroom is proposed. The proposed drain field area is relatively flat. Water is provided by a well which is located to the north of the residence. SUBSURFACE The subsurface was investigated by digging three percolation holes, as indicated, and by digging an eight foot test pit. Subsurface conditions consisted ofa sandy root zone underlain by siþ clayey sand to 8 feet in depth, the maximum depth explored. Percolation rates ranged from 40 to 20 minutes per inch (MPD. A27 I|I4PI rate will be used to clesign the OV/S. DESIGN SPECIFICATIONS The OWS design is based on two sinks, and a full bathroom for the proposed shop. We will consider 5 persons per day using the shop per day. The installation must include a 1000-gallon, two- compartment, precast concrete septic tank with an effluent filter, to be followed by gravelless chamber trenches. Two gravelless chamber trenches, using 'Quick-4' InfiltratorrM chambers OR Arc- 36 Biodifuser chambers must be installed as indicated. There must be a fotal of Each trench must Onsite Wastewater Systems Page2 have 1 row of 16 chambers, for a total of 474 square feet (SF) of infiltrative area. A concrete distribution box with a baffle must be installed. Construction must be according to the Garfield County Environmental Health Department OV/S regulations, the OWS Construction Permit provided by the county, and this design. This design for the subject property, noted above, is valid only in conjunction with the approved Garfield County Environmental Health Department. OPERATION INFORMATION AND MAINTENANCE The surface of the drain field should be seeded upon completion. Vegetation is an important factor in drain field performance. Erosion control should be practiced prior to and during re-vegetation. Geo- fabrics or plastics should not be used over the drain field. No heavy equipment, machinery, or materials should be placed on backfilled drain field. Livestock should not graze on the drain field. Plumbing fixtures should be checked to ensure that no additional water is being discharged to OWS. For Example, a running toilet or leaky faucet can discharge hundreds of gallons of water a day and harm a drain field. The homeowner should pump the septic tank every two years and clean the effluent filter as needed. Garbage disposal use should be minimized, and non-biodegradable materials should not be placed into the OWS. Grease should not be placed in household drains. Loading from a water softener should not be discharged into the OV/S. No hazardous wastes should be directed into the OWS. Mechanical room drains should not discharge into the OV/S. The OV/S is engineered for domestic waste only. ADDITIONAL CONSTRUCTION NOTES If design includes a pump, air release valves and weep holes should be installed to allow pump lines to drain to minimize risk of freezing. Excavation equipment must not drive in excavation of drain field due to the potential to compact soil. Extensions should be placed on all septic tank components to allow access to them from existing grade. Precast concrete tanks and distribution boxes should be used, unless plastic or fiberglass is required. Access to all tank compartments and distribution devices is optimal. INSTALLATION OBSERVATIONS ALL SERVICE septic, LLC, and the county must view the OWS during construction. The OWS observation should be performed before backfill, after placement of chambers and distribution pipes. Septic tanks, distribution devices, pumps, dosing siphons, and other plumbing, as applicable, must also be observed. ALL SERVICE septic, LLC should be notified 48 hours in advance to observe the installation. Onsite Wastewater Systems Page 3 LIMITS: The design is based on information submitted. If soil conditions encountered are different from conditions described in report, ALL SERVICE septic, LLC should be notified. All OWS construction must be according to the county regulations. Requirements not specified in this report must follow county regulations. The installer should have documented and demonstrated knowledge of the requirements and regulations of the county in which they are working' Please call with questions. ALL LLC a¿-1¿.La- Richard H.Timothy R. Petz 3 copies sent Pond Pond N 0' 50' 100' Scale: 1" = 100'-0" ---.---_\ \E SHED I SHOP n SHED ı 3 !cö 0)c =Ëoo fL 6)c = o .Eo P-3 ooP-'t P-2 @ Drive SITE PLAN AND PROPOSED OWS Rtt $t[Tr[t P.O. Box2844 Glenwood Springs, Colorado 81602 Phone 970.618.5033 Fax 3O3.216.2796@ Ercanbrack Residence SHOP 585 Cindy's Way Garfield, Colorado Project Number: 1694 w1 .0 Sheet 1 of4 2 4 BEDROOM PR HOUSE N 0' ,/40' Søale: 1" = 40'-0" WELL i I o 4" SEWER PIPE, 2% FALL TO TANK, WITH CLEANOUT 7 1000 GAL. TWO-COMPARTMENT TANK, ADD EFFLUENT FILTER IN SECOND COMPARTMENT PROPOSED SHOP 2 GRAVELLESS CHAMBER TRENCHES. QUICK 4'S = 16 TOTAL ARC-36 = 14 TOTAL4'SDR 35 PVC PIPE (1% FALL TO D-BOX)SHED DISTRIBUTION BOX OBSERVATION PIPES POSED OWS Rtt $tnït[t P.O. Box2844 Glenwood Springs, Colorado 81602 Phone 970.618.5033 Fax3O3.216.2796Étrù Ercanbrack Residence 585 Cindy's Way Garfield, Colorado Project Number: 1694 w2.0 Sheet 2 of4 DESIGN SHOP WITH 2 SINKS AND A FULL BATHROOM 5 PERSONS @ 25 GALS/DAY P-ON PVC CAP FINISHED DO NOT GLUE LOADING = q= 125 GALLONS PER DAY PERCOLATION RATE = t= 27 MINUTES PER INCH (MPl) FFLUENT CALCULATED AREA = ((1.5 X q X sqrt t) / 5) = 195 3¡ PROPOSED AREA = 195 SF X20% REDUCTION = 156 SF TRENCH SPECIFICATIONS SEWER LINE - 4' SCHEDULE 4" SCHEDULE INSULATED 40 P.V 4'MIN 40 0R 4'SDR 35 P.V.C. COPPER TRACER WIRE MAY BE INSTALLED TO LOCATE LINE IN FUTURE WIDTH OF TRENCHES = 3 FEET = 1 CHAMBERS LENGTH OF 'QUICK-4'TRENCHES = 24 FEET = I CHAMBERS TOTAL NUMBER OF'QUICK-4'CHAMBERS = 16 TOTAL NUMBER OF ARC 36 CHAMBERS = 14 TOTAL INFILTRATIVE AREA = 158 SF SWEEP I2WAY CLEANOUT DETATLS (N.T.S) TYP|CAL BSERVATION PIPE TWO TOTAL TRENCHES DRAIN FIELD CROSS SECTION . TYP INFILTRATOR(R) QUICK4(TM) CUT SHEET LATERAL SUSPENDED 4" PVC OBERVATION LIMIT OF EXCAVATION 52" 48"WITH'ZIP-TIE PIPE 1 3.0'MAX 2.s',MtN6'MIN 16"1 GRAVELLESS CHAMBER (a'x 3') 34', SCARIFY SURFACE PRIOR TO PLACEMENT OF SAND PVC PIPE TO ENTER IN TOP PORT OF END PLATE PLAN VIEW - TYP INLET DISTRIBUTION BOX WITH BAFFLE 4" PVC PIPES SDR 35 GRAVELLESS CHAMBER 'QUICK-4' OBSERVATION PIPE 6' PIPE TO ENTER CHAMBER IN TOP PORT OF END PLATE 3' B CHAMBERS PERTRENCH END PLATE 24 FT CHAMBER DETAILS Ò o fltt $t[rffi P.O. Box 2844 Glenwood Springs, Colorado 81602 Phone 970.618.5033 Fax 303.216.2796 fs e nticìv Ercanbrack Residence 585 Cindy's Way Garfield, Colorado Project Number: 1694 w3.0 Sheet 3 of4 Septic Tank with the Addition of an Effluent Filter - 1000 Gallon, 2-Comp. Concrete Risers pe Ground Awoy From Risers Filter CorIridge Hondle (field cut to desired height) Top of tee to 1 " from lop of come to tcnk lid Tonk Adopter (cos[ or bolted) Vent 0rifice !!.nrþ¡or0" lnlet Tee Modulotìng Dischorge 0rifices Voult Inlet Ports ORENCO BRAND NAN/t NOT INFORCED Filter Cortridge FfflLrenl Filter Potents f 4,+39,323 & 5,4s2,635 Foreign Po[ents Pending 42002, Orenco Syslems, lnc. TANK DETAIL 2" Liquid Level Rtt $tRIt[t P.A. Box2844 Glenwood Springs, Colorado 81602 Phone 970.618,5033 Fax 3O3.216.2796€¡st Ercanbrack Residence 585 Cindy's Way Garfield, Colorado Project Number: 1694 w4.0 Sheet 4 of4