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Home My WebLink AboutEngineer's OWTS Design PlanHuddleston-BerrY Engirreering & Testing, LLC 2789 Riverside ParkwaY Grand Junction, Colorado 81501 Phone: 970-255-8005 Info@huddlestonberry. com January 30,2025 Proj ect#02961-000 1 Ms, Catherine Placek 68 Scutter Ridge Road Rifle, Colorado 81650 Subject Reference OWTS Design Lot 14 Rapids View Lane Parcel 218704307014 New Castle, Colorado Geotechnical Investigation, Lot t4 Rapids view Lane, !u, castle, colorado by Huddleston-Berry figin".iing & Testin g,LLC for Catherine Placek, January !6' 2025. Dear Ms. Placek, At your request, Huddleston-Berry Engineerins & ]es11n g, LLC completed design of an onsite Wastewate, rr"utr"ni ifrt.. (OWTSi for sirigle-family?esidence at Lot 14 Rapids View Lane in New Castle, Colorado. The site location is-shown on Fignt" 1 - Site Location Map' A site plan is included as Figure 2. site Descripti-oq i-"^'+i-arinn rhe nnrrhern nortion of tl ' d by the coloradoAtth" ti-. "f the investigation, the northern portion of the site was occuple River. The remainder of site was open-and gentty sloping down to the north. site topography is shown on Figure Z. Yegetation at the ,iitpii-uiily "bnslsted of weeds, grasses, and bushes and trees in the northern p#on of the site. rrre site *as bordered to the north by the colorado River' to the west by a residential property, to the east by a vacant lot, and to the south by Rapids View Lane. Subsurface Investisation As discussed in the referenced report, three test pits were conducted at the site' Using visual- tactile classification methods, the soil pronre consisted of 1.0 to 1'5 feet of tan, moist' stiff' structureles, ,unAy-1ou* soils to depths of between 3.0 and 5.0 feet' Below these depths' tan' moist, dense sandy loam with grurr.l and cobble s (<35% rock) with 1 Yt?5 granular structure extended to the bottoms of the test pits. The site soils are consistent with soil Type 2A' Groundwater was not encountered in the subsurface at the time of the investigation' In. general, based upon the results of the s1tbr.rrfuc. investigation and proximity to the colorado River' HBET believes that the seasonal high lroundwatJr elevation is deeper than 6'0 feet below the existing grade at this site. The locations of the test pits are shown on Figure 2. Copies of the test pit logs are included in Appendix A. Lot 14 RaPids View #2961-0001 01130125 Onsite Wastewater Treatment Svstem Seepage Bed Design The design of the absorption system generally follows the requirements of the Garfield county on_site wastewater Treatment system iotrrsl Regulations, eifective June 2018. The proposed construction at the site is anticipated to include a three-bedroom home' Baseduponthevisualtactileclassificationofthesoils,aLong-TermAcceptanceRate(LTAR) of 0.5 will be utilized for the absorption field design. Infi-hrator Systems Quick4 Standard chambers ur. prop*Lo. rn" dailv flow J the sewage-disposal system is calculated below and a ;1"";;Jp.ofiie oithe absorption system are shown on Figure 3' Average Daily Flow: (6 persons)(75 GPD/person) = 450 GPD Soil Treatment Area : (450 GPD / 0'5):900 Square Feet Adjusted so1 Treatment Area : (900 sFxr .2)(0.7) : 7 56 square Feet #ofQuick4Chambers=(756112):63Chambers;Use64Chambers tin:#:#r':ll:!'Jthe septic tank, plumbing rines, rnfiltrators, etc should be completed in accordance with the Garfierd county l"grr"tiJrr ani Infiltrator systems, Inc, specifications. In addition, the followin! construction procedures are recommended: . The ,.pti"iunt and distribution box should be placed level over.native soils that have been scarified to a depth of 8 to 12 inches, moisture conditioned, and recompacted to a minimum of 950/o of the standard Proctor maximum dry density' within +Za/o.of optimummoisturecontent'Howevet,upto3-inchesofwashedrockorpipebedding passingthel-inchsievemaybeusedasalevelingcourseundertheseptictankand/or distribution box' r , 11 -1,-L--ti.^- L^.'. The bottoms of trenches and backfill around the septic tank- and distribution box which will support sewer or effluent lines should be compacted to at least 90 percent of the standard proctor ma*imr* dry density, within .*z'/r^of optimum moisture content. Pi;" U"aaing should have a maximum particle size of 1-inch' . Vehicular or heavy .qtrip*.nt traffic and placement of structures should not encroach within 10 feet of tire Jeptic tank or distribution box, Inspection Schedule Huddreston-tserry Engineering & Testin gLLc should.be retained to monitor the construction of the owrS. The following schedule of o6servation and/or testing should be followed: , observe the absorption bJ excavation prior to placement of Infiltrator chambers' . observe placement of the septic talk, distribution box, and all connecting sewer and .fnu..,itin.t ptiot to backfili. Verify proper fall between inverts' . observe and verify installation of the absorption bed prior to placement of cover and backfi11 @ Huddleston-BerrY brgnrdrin! & l:?sio!' I-l-c 2 2:\2008ALLPROJECTS\02961-CatherinePlacek\0296l.000lLot14RapidsViewLure\200-Geo\02961.0001owTS013025'doc Lot 14 Rapids View I#2e61-ooor @*t**':T?l;*n= 01130125 In conformance with Garfield county regulationsaPET will be required to provide Garfield County *itfr Aorurn.ntation certifying thaithe OWTS was placed in conformance to the plan and profile and Garfield County regulations' General Notes The owrS design was based upon the results of the subsurface investigation and on our local .*p.ri.n...The"designisvalidonlyfortheproposedconstruction' we are pleased to be of service to yourproject. prease contactus if you have any questions or .ornt.nt, regarding the contents of this report' Respectfully Submitted : Huddleston-Berry Engineering and Testing' LLC Michael A. Berry, P.E. Vice President of Engineering J 2:\2008 ALL PR.JECTS\02961 - Catlreline Placek\02961-0001 Lot 14 Rapids view Lm€\200 - Geo\02961 -0001 owTS0 l3025.doc ite Location te Locatiolr MaP GURE 1 ProjectNo.: 02961-0001 Date: 01130125 By: MAB Huildlestor-BerrY Erginening & Tesring LI,C 2789 Riverside ParloNaY Grand Junction, CO 8l 501 OVB RALL SITE PLAN AND ACCESS EASEME}TT DRAINAGE, UTILITY IRRIGATION EASEMENT IRRIGATION EDGE OF COLORADO RIVER SCAIE: l" = 40' C.I. = 2 FT A TEST PIT rlNk ANn sED LOUnO\SFPedME 'NOW',S'f,S@E D'C re ''- i'onsri"irn-u*o -m* srT Top6qoHy. @!€e o+tE\cE tN@e ii,io iiinns x ionc rs eprrc 6 B-E sEEAc{s AE Er ! cu LosT N 6r rru .qo eeoK- ee tuenD oNAs &1TDs$ \c - NEW RESIDENCE TP.,I A I I I I LOT 14 RAPIDS VIEWLANE PARCEL#218104307014 FIGI'RE2-SITEPLAN GENERALIZB'D SYS TEM PROFILE NgT To SCALE RESIIIEIIIAL STRUCTURE XECESSARD LITS ARE AT FINTSH GRAIE TRATER CHAXM LOgfl lml EST. 6t)EE!FT EST. 2,0 FT,f,! FI l{AX. 1,0 FT r{ll{ ctrvEx - BBX 2COWAmTSPncTrMROMOre APM OrD TAM !67 FILTER TEE FEET BELOW IN OUTLET EXISTING GRADE 1\L4.X** GENERALIZE D BED PROFILE NOT T0scAl T I I I L Its"tJYHT.^#,tPf {FNf"ffi RilB1#11'"'*E""*l rxbn',lern IppRoTtDEQUALPERBED I DIFILTRATOR SYSTEMS QUICK4 COIIER SOIL; NATIVE SOILS OR OTHER SUITABLE TOPSOIL. GRADE TO CARRY SURFACE WATER STANDARD BED. NONWO\EN. NEEDLE PUNCIIED,FEET BELOW FABRIC IMMEDIATELY ABOVE CHAMBERS EXISTING GR{DE 1\tr4x.* MINIMUM SETBACKS (UNITS = FT) -EllFnil-b.-EIIIET s s a YAE W D mru1{, UffiNru D o o LND [T6 D a ! fl.r!rus $ 3 LTE, $TETIilJE! rs a Mt.ff YM msffi 5 9 WUG V[cusffi a D ffifl ts **OTHER SETBACKS NOT LISTED !{ERE SHOULD BE IN ACCORDANCE WIIH GARFIELD COUNTY OWTS REGUL MIONS Project No.: 02961-0001 Date: 01130125 By: MAB Huddlestol-BerrY T.nginering & Testing, l"l.C 2789 Riverside ParlwaY Crrand Junction, CO 81501 DETAIL AREA SCALE: l" = 20' s SE?TTC TANK WITH MINIMUM 4.INCX{ DIAMETER SEWER AND D1785,EITLUENT PIPE MEETTNG SCIIEDULE 40 OR SDR 35 DISTRIBU'IlON BOX THAT ENSURES EVEN OI EFFLUENT INSPECTION WATER LiNE TRATOR SYSTEMS QUICK4 STANDARD CHAMBERS iNISPECTION +*usE swEEP 90'S OR TWO 45'S AT 90 NEWRFSIDENCE I.{IN LOT 14 RAPIDS VIEW LANE PARCEL#218104307014 FIGURE3-SEPTICSYSTEM DETAILS PROJECT LOCATION PROJECT NAME Lot 1 Lane4 Raoids TEST PIT NUMBER PAGE TP-1 10F1Htrddleston-Berry Engineori-ng & Testing, LLC 89 Riverside ParkwaY PROJECT NUMBER Grand Junction, CO 81501 970-255-8005 CLIENT CatherinePlacek TEST PIT SIZE CHECKED BY Drv DrvMAB COMPLETEDDATE STARTED EXCAVATION METHOD AFTER EXCAVA TtoN -- EXCAVATION CONTRACTOR cli LOGGED BY TC GROUND ELEVATION NOTES GROUNDWATER L6/ELS: AT TIME OF EXCAVATION AT ENDOF EXCAVATION LI F Yul 69 J o- Fz LUFz (JS a tJlztr OtrLa=s= o- Ltl o-E- 'aP oz>oO Qr- a= J- 2 uJ o-r-cug Ooo- E =Eto (/)freFl<z.J Hasoz Ltl(L>v.Fur e9 o- =)>z U) ;e t-- Lu !J AH Ot!t O: +qt-(9 MATERIAL DESCRIPTIONI IFo- Lllo Organics (TOPSOISandy Loam with 2.5 Type 24)stiff, structureless (SoiSandy Loam, tan,moist, 7.5 moistian<35o/oandCobbles rock),GravelLoamSandy Tstructure 2A)(so ypeweakgranuladense, Bottom of test Pit at 8.0 feet. Fo(9 di) etao Fz o (Ioa;o FoJ ooo Im IO t].l bU(, U)z Huddleston-Berry Engineering & Testing' LLC 2789 Riverside ParkwaY Grand Jtrnction, CO 81501 970-255-8005 PAGE 1 OF 1 PROJECT LOCATION PROJECT NAME Lot 1 4 Rapids View TEST PIT NUMBER TP.2 PROJECT NUMBER CLIENT CatherinePlacek TEST PIT SIZE 1 AFTER EXCAVATION AT TIME OF EXCAVATION Drv EXCAVATION METHOD AT ENDOF EXCAVATION Drv EXCAVATION CONTRACTOR LOGGED BY TC DATE STARTED 12J2O124 COMPLETED GROUND ELEVATION NOTES GROUND WATER LA/ELS: CHECKED BY LI t-z UIFzOQO Y-- U) r.rlztr Otrba= 5= o- Fq6 6ss= E9 6Foz>oo 9r a= =) E =Eto -.fD q <-)q5<6o>oz zul o- l-Gug Oo o- a d-q3 gt_ ulE ul o->EFtU 59(L=]>z a MATERIAL DESCRIPTION IF^o-€ o o TEt-o Sandy Loam with Orga nics (TO , structureless (Soil TYPe 2)Sandy Loam, tan,moist, NP 11NPNP3GB 1 moisttan<35o/o rock),and CobbleswithGravelLoamSandy 2)Typestructure(Soilweakgranuladense, Bottom of test Pit at 6.0 feet. U)l Fz o 6N oa L!z 5 dt az : 5J I m Tol!Foulo PROJECT LOCATION PROJECT NUMBER PROJECT NAME Lot 1 4 Raoids CLIENT Placek Engineering & Testing LLC fuverside Lane TEST PIT NUMBER PAGE TP.3 10F1 Grand Junction, CO 81501 970-255-8005 TEST PIT SIZE Drv Drv EXCAVATION METHOD AFTEREXCAVA TloN -- DATE STARTED EXCAVATION CONTRACTOR CHECKED BY MAB COMPLETED 12120124 GROUND ELA/ATION NOTES LOGGED BY TC GROUND WATER LEVELS: AT TIME OF EXCAVATION AT ENDOF EXCAVATION Eqd 69<=JI Fz tJlFz (J ro()3) aulztr OtrL 3=o- Lil O-E:' 'atr oz>oo oF e= J- 2 uJ o-r-Gug Ooo- EF^ =zEo afr>Ff<z) Hasoz LU o->tF r,!gB o- =)Z.z a s fiq aH_ulE MATERIAL DESCRIPTION IF^(L€ o C) KEt-o L)Sandy Loam with (SoilType 2A)stiff, structurelessSandy Loam, tan,moist, moisttanCobblesrock),and (<35%GravelwithLoamSandy structure 2A)Type(Soilweakgranulardense, test pit at 6.0 feet.Bottom al Fz (, Noq ulz J o F 9 so It0 I trlFoUo