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666266656661666466626666SS63 (3x21) QUICK 4 INFILTRATOR UNITSOR 51 (3x17) ADS UNITS6'MININSPECTION PORT ATEACH END OF EACHLATERAL, TYP.TWO-WAYCLEANOUTAT THEBUILDINGNEW CDPHE APPROVED1250-GALLON PRECAST TWO (2)CHAMBER TANK (SEE DETAIL)APPROX. TESTPIT LOCATION,TYP. (ORIGINAL)INSTALL 4"Ø SCH.40PVC SEWER LINE @2% MIN., TYP.GRAVITY DISTRIBUTIONBOX (USE 2 ZONES)SITE
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INEER 4/5/22NORTHByRevisionNo.Date
923 Cooper Ave., Ste. 201Glenwood Springs, CO 81601(T) 970.945.5252www.bu-inc.comEngineer or Surveyor SealSheetClient Information:PROJECT NO.File Name:Designer:Drafter:Date:N:\PROJECTS\2021\21040-Lot 24 Callicotte Ranch\dwg\21040 L24 Callicotte SP-01.dwg 4/5/2022 2:03 PM
Subsurface Utility Engineering (SUE)Required Project:If "Yes", SUE Certification by:Firm:Job #:Date:9.
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2.9/27/21BUIDJW21040 l24 callicotte sp-01.dwg21040970.404.0302GLENWOOD SPRINGS, CO 81601144 CLIFF ROSE WAYURIEL MELLINGARFIELD COUNTY, COLORADO
1. 4/5/22 Revised OWTS absorption field location. djw
Consttuction Set
On Site Water Treatment System
Lot 24 Callicotte Ranch
C3NoN/AN/AN/A0020'40'Scale: 1" = 20'SITE EVALUATION1.SITE AND SOIL EVALUATIONS WERE PERFORMED BY:DERIC J. WALTER, PEDANIEL E. HARDIN, PEBOUNDARIES UNLIMITED INC.HP KUMAR GEOTECHNICAL ENG.923 COOPER AVE., STE. 2015020 C.R.#154GLENWOOD SPRINGS, CO 81601GLENWOOD SPRINGS, CO 81601970.945.5252970.945.79882.EVALUATION DATE(S): NOVEMBER 2018.3.SETBACK REQUIREMENTS FOR A TREATMENT LEVEL 1 STA TRENCH/BED, UNLINEDSAND FILTER OR SEEPAGE PIT (PER TABLE 7-1) AND AN ADWF=525 GPD:3.A.SPRING, WELL OR POTABLE CISTERN=100'3.B.POTABLE WATER SUPPLY LINE=25'3.C.STRUCTURE W/ BASEMENT/CRAWL SPACE=20'3.D.STRUCTURE W/O BASEMENT/CRAWL SPACE=10'3.E.PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH=10'3.F.INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=25'3.G.LAKE, WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=50'3.H.DRY GULCH, CUT BANK OR FILL AREA=25'3.I.SEPTIC TANK=5'3.J.RESTRICTIVE LAYER OR GROUNDWATER (VERTICAL): 4' (TREATMENT LEVEL 1,GRAVITY FEED)3.SETBACK REQUIREMENTS FOR THE SEPTIC TANK SHALL BE (PER TABLE 7-1):3.A.SPRING, WELL OR POTABLE CISTERN=50'3.B.POTABLE WATER SUPPLY LINE=10'3.C.STRUCTURE W/ BASEMENT/CRAWL SPACE=5'3.D.STRUCTURE W/O BASEMENT/CRAWL SPACE=5'3.E.PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH=10'3.F.INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=10'3.G.LAKE WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=50'3.H.DRY GULCH, CUT BANK OR FILL AREA=10'3.I.STA TRENCH/BED, UNLINED SAND FILTER OR SEEPAGE PIT=5'SURFACE12"-18"Vicinity Map1"=4000'Scale: N.T.S.Site & Soils EvaluationSOIL EVALUATION1.SOIL WAS ORIGINALLY CLASSIFIED BY THEGEOTECHNICAL ENGINEER AS USDA SANDY LOAM, LOAM,SILT LOAM TYPE 2A AND AN LTAR OF 0.50 GPD/SFNORTHEAST OF THE HOUSE AND CONFIRMED TO BESIMILAR BY BOUNDARIES UNLIMITED INC. WEST OF THEHOUSE.2.THE NATIVE SOILS MAY CONTAIN BOULDERS. WHENENCOUNTERED, REMOVED THE BOULDER AND BACKFILLTHE VOID WITH LOAMY SAND OR SANDY GRAVELS.NORTHSITETo BasaltHwy. 82CarbondaleMAINTENANCE NOTES1.TO ENCOURAGE THE HEALTH AND LONGEVITY OF THE OWTS SYSTEM, THE OWNER SHALL CONSIDER THE FOLLOWING:1.A.MINIMIZE THE AMOUNT OF WATER THAT GOES DOWN THE DRAIN, THE BETTER YOUR SYSTEM WILL WORK.1.B.MINIMIZE SOLIDS GOING DOWN THE DRAIN.1.C.ELIMINATE GARBAGE DISPOSALS OR KEEP THE USE OF GARBAGE DISPOSALS TO A MINIMUM.1.D.MINIMIZE GREASE AND OILS THAT GO DOWN THE DRAIN.1.E.USE LINT FILTERS ON LAUNDRY MACHINE DRAINS.1.F.KEEP SAND AND DIRT OUT OF THE BUILDING DRAIN.1.G.AVOID FLUSHING SANITARY NAPKINS OR PAPER PRODUCTS OTHER THAN TOILET PAPER.1.H.DO NOT USE LYE-BASED DRAIN UNCLOGGER CHEMICALS SUCH AS DRAINO, OVEN-OFF, OR OTHER STRONGCLEANING AGENTS.1.I.DO NOT PUT ANY “ROOT DETERRENTS” DOWN THE DRAIN.1.J.DO NOT POUR PAINT THINNER, PESTICIDES, PAINTS OR PHOTO LAB CHEMICALS DOWN THE DRAIN1.K.MINIMIZE USE OF CHLORINE BLEACH AND TOILET ADDITIVES.2.THE OWNER SHALL CONTRACT WITH A SEPTIC TANK INSPECTOR TO INSPECT THE TANK ANNUALLY FOR GREASE ANDSEDIMENT ACCUMULATION. THE INSPECTOR SHALL REMOVED AND PROPERLY DISPOSED OF ACCUMULATED GREASEAND SEDIMENT AS NEEDED TO ENSURE PROPER FUNCTION OF THE SYSTEM.4 12' TO 8'TOPSOIL(GM); DENSE, SANDYBASALT GRAVEL ANDCOBBLES WITH BOULDERSIN CALICHE MATRIXTo GlenwoodSpringsFLOWScale: N.T.S.Two-Way CleanoutSYSTEM DESIGN & CONSTRUCTION NOTES:1.ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH CDPHE REGULATION 43 ONSITE WASTEWATER TREATMENT SYSTEM (OWTS) REGULATION, MOST CURRENTEDITION AND LOCAL AGENCY REQUIREMENTS WHICH MAY OR MAY NOT SPECIFICALLY BE NOTED ON THE DRAWINGS. THE CONTRACTOR SHALL BE RESPONSIBLE FORKNOWING AND CONFORMING TO SUCH SPECIFIC DETAILS AS ARE REFERRED TO IN THE ABOVE MENTIONED REGULATIONS. THIS DRAWING DOES NOT CONSTITUTE ANOWTS PERMIT. A PERMIT MUST BE OBTAINED FROM APPROPRIATE LOCAL AGENCY. THE CONTRACTOR MUST CONTACT THE LOCAL AGENCY HEALTH DEPARTMENT ANDTHE PROJECT ENGINEER FOR INSPECTIONS OF THE CONSTRUCTED SYSTEM BEFORE BACKFILL. A REQUEST FOR INSPECTION BY THE PROJECT ENGINEER MUST BE MADEAT LEAST 48-HOURS PRIOR TO THE EXPECTED TIME OF BACKFILLING.2.DEMAND CALCULATIONS (SEC.43.6.A.2.h)2.A.FOUR (4) BEDROOM RESIDENCE USING TREATMENT LEVEL 1 (TL1).2.B.AVERAGE DAILY WASTEWATER FLOW (ADWF) AND ORGANIC LOAD RATE (BOD5):2.B.1.SINGLE FAMILY DWELLING: 75 gpdc & 0.20 BOD5 lbs/day2.B.2.ADWF = 75 gpd * (3 BEDROOMS * 2 PERSONS/BEDROOM + 1 BEDROOM * 1 PERSON) =525 gpd2.B.3.BOD5 = 0.20 lbs/day * (3 BEDROOMS * 2 PERSONS/BEDROOM + 1 BEDROOM * 1 PERSON) = 1.40 lbs/day BOD5 mg/L = BOD5*1,000,000 = 1.40 lbs/day*1,000,000 = 319.74 mg/L ADWF*8.34 525 gpd*8.342.B.4.CBOD5 = BOD5 * 0.85 = 272 mg/L3.SEPTIC TANK (SEC.43.9.B.2.a):3.A.1,250-GALLON STANDARD STORAGE TWO-COMPARTMENT TANK (PER TABLE 9-1) WITH AN EFFLUENT FILTER.3.B.THE TANK IS NOT SUBJECT TO BUOYANCY.4.ABSORPTION AREA CALCULATIONS:4.A.THE ABSORPTION AREA SLOPES GENTLY. SOILS WERE ORIGINALLY STUDIED BY KUMAR & ASSOCIATES, INC. (PROJECT NO. 21-7-190, MARCH 3, 2021 & APRIL 13,2021) NORTHEAST OF THE PROPOSED RESIDENCE WITH A LONG TERM ACCEPTANCE RATE (LTAR) FOR TREATMENT LEVEL 1 (TL1) OF 0.50 gpd/SF AND CONFIRMEDTO BE SIMILAR WEST OF THE PROPOSED RESIDENCE (SEE SITE & SOILS EVALUATION NOTES/DETAIL).4.B.MINIMUM SOIL TREATMENT AREA, A: A = ADWF = 525 = 1050 S.F. LTAR 0.50 gpd/S.F.4.C.SIZE ADJUSTMENT FACTORS: GRAVITY TRENCH = 1.0; CHAMBER TRENCH = 0.70 (TABLE 10-1A).4.C.1.A,adj = 1050 SF * 1.0 * 0.7 = 735 SF4.D.GRAVELLESS CHAMBER TRENCH SYSTEM:4.D.1.INFILTRATOR QUICK4: 735 SF / 12 SF/UNIT = 62 UNITS IN A TRENCH CONFIGURATION (USE 63).4.D.2.ADS ARC 36: 735 SF / 15 SF/UNIT = 49 UNITS IN A TRENCH CONFIGURATION (USE 51).5.THIS SYSTEM IS SIZED FOR TYPICAL DOMESTIC WASTES ONLY. BACKWASH OR FLUSHING FLOWS FOR REVERSE OSMOSIS UNITS OR WATER SOFTENERS AND/OR FILTERSSHOULD NOT BE INTRODUCED INTO THIS SYSTEM.6.CLEAN OUTS ARE REQUIRED AT THE HOUSE AND AT ALL BENDS AND AT LEAST EVERY 100-FEET BETWEEN THE HOUSE AND THE SEPTIC TANK.7.THE CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLING ALL WATER TIGHT COMPONENTS THROUGHOUT THE SYSTEM TO PREVENT INFILTRATION.8.INSTALL RISERS AS NECESSARY TO BRING ALL ACCESS PORTS TO FINAL GRADE. PORTS SHALL BE MARKED IF CAPS ARE TO BE BURIED.9.INSTALL 3-INCHES OF BLUEBOARD INSULATION, 3-FEET WIDE, OVER SEWER AND EFFLUENT PIPE WHEREVER DEPTH IS LESS THAN 5-FEET. UNDER NO CIRCUMSTANCESSHALL COVER BE LESS THAN 2-FEET.10.SITE PLAN INFORMATION FROM OTHERS. LOCATIONS OF ALL COMPONENTS MAY BE VARIED AS NECESSARY AS LONG AS ALL MINIMUM DISTANCES AND SLOPES MEETTHOSE REQUIRED.4" PVC TEE/RISER4" PVC TEE/RISERWITH EFFLUENTFILTER ON THETANK OUTLETATTACH REMOVABLE CAP ORTHREADED CLEANOUT ASSEMBLY.INSTALL MARKER IF CAP IS TOBE BURIED.FINISH GRADE4"Ø PVC RISER4"Ø PVC TWO-WAYCLEANOUT TEE4"Ø SEWER LINENOTE:HIGH DENSITY POLYETHYLENETANKS BY NORWESCO, INC.ARE AN ACCEPTABLEALTERNATIVE TO CONCRETE.GENERAL ABSORPTION AREA NOTES1.INSTALL CHAMBER UNITS IN ACCORDANCE WITHMANUFACTURER'S RECOMMENDATIONS.2.ABSORPTION TRENCHES SHALL BE 3' WIDE OR LESSAND PARALLEL THE GROUND SURFACE CONTOURS.PARALLELING TRENCHES SHALL BE SEPARATED BYA DISTANCE OF 6' MIN.3.THE BOTTOM OF THE ABSORPTION TRENCHESSHALL BE LEVEL AND THE BOTTOM ANDSIDEWALLS MUST BE RAKED TO REMOVE ANY SOILSMEARS INCURRED DURING THE EXCAVATION.FAILURE TO DO SO MAY REQUIRE THE CONTRACTORTO REPLACE THE ABSORPTION FIELD AT HIS/HEROWN EXPENSE.4.DRAINAGE SWALES ARE TO BE PROVIDED ABOVEAND AROUND THE FIELD, AS NECESSARY, TOPREVENT SURFACE RUNOFF FROM ENTERINGABSORPTION AREA.5.NO EXCAVATION OF THE ABSORPTION FIELD IS TOBE DONE DURING WET WEATHER AND USE OFRUBBER TIRE VEHICLES OVER THE ABSORPTIONAREA IS STRICTLY PROHIBITED.6.UNSUITABLE MATERIAL EXISTING WITHIN THE FIELDSHALL BE EXCAVATED AND BACKFILL SHALLCONSIST OF IMPORTED LOAMY SAND OR SANDYGRAVEL. THE ENGINEER SHALL BE CONTACTED IFBEDROCK OR GROUNDWATER IS ENCOUNTERED INTHE OVER-EXCAVATION.7.TOPSOIL COVER MAY BE VARIED (1-FOOT MINIMUM,2-FOOT MAXIMUM) TO ALLOW FOR LANDSCAPING.Scale: N.T.S.Typical Chamber Trench System36" MAX.UNDISTURBED NATIVE SOILS6' (MIN.)BOTTOM TO BE LEVEL AND FLAT OVERENTIRE AREA TO WITHIN 0.05'±. (TYP.)REMOVE ANY ENCOUNTEREDBOULDERS AND BACKFILL WITH LOAMYSAND OR SANDY GRAVELS. DO NOTUSE COMPACTED MATERIALS.DO NOT WALK ON OR COMPACTBOTTOM OF TRENCH.FINISHED GROUND - MAINTAIN POSITIVESLOPE AWAY FROM TOP SURFACE OFTHE CHAMBER TRENCHES.PVC COUPLING FOR SUPPORTSTANDARD INSPECTION PORT, TYP. (4"Ø PVCSOLID PIPE CUT TO FIT. LOCATE PER PLANVIEW. ATTACH REMOVABLE CAP OR THREADEDCLEANOUT ASSEMBLY.INFLOW AND OVERFLOWPIPES SHALL ENTER THEUPPER KNOCKOUTSGRAVELLESS CHAMBER SYSTEM:INFILTRATOR QUICK 4, ADVANCEDDRAINAGE SYSTEMS BIODIFFUSER(STANDARD), OR ENGINEERAPPROVED EQUAL.EX. GRADE 10%±1% MIN3:1 MAX GRADEFILLCIRCULAR IRRIGATION-STYLE VALVEBOX & COVER - LID COLOR PURPLE ORGREEN - LABEL "SEWER"3:1 MAX GRADE18" MIN
1' MIN2' MAX1% MINFILL