The URL can be used to link to this page

Home My WebLink AboutOWTS Alteration DesignXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX65456540WGRAVELESS CHAMBERSSSC/O15 (3x5) QUICK 4INFILTRATOR UNITS6 (2x3) QUICK 4INFILTRATOR UNITSSSSSSSSSR100'EX. CLEANOUTAT THE BUILDINGEXISTING 500-GALLON PRECAST CONCRETETWO (2) CHAMBER SEPTIC TANK(MAINTAIN 5' MIN. SEPARATION BETWEENSEPTIC TANK AND BOTH SEEPAGE FIELDS)EXISTING 4"Ø SCH.40 PVCREMOVE EXISTING 4"Ø PVC LINEEXISTING WELLEXISTING BOULDERRETAINING WALLEXISTING BOULDER RETAINING WALLAPPROX. 3' HIGHEXISTING ADU/SHOPEXISTING GARAGEEXISTING HOUSENEW 4"Ø PVC SUPPLY LINES (PIPE"T" FITTINGS MUST BE LEVELPROPERTY LINEPROPERTY LINEEX. TREE TO BE REMOVEDEX. TREE, TYP.EXISTING & RELOCATEDINSPECTION PORTSMAINTAIN OR REPLACE(4) EX. CHAMBERSSETBACK LINECONSTRUCT TWO 4"Ø PVC EQUALIZATIONPIPES BETWEEN SEEPAGE BEDS. PIPEINVERTS SHALL BE APPROX. 3" ABOVESEEPAGE BEDS & LEVEL.NOTE:BOTH SEEEPAGE FIELDS MUST BECONSTRUCTED AT SAME ELEVATIONMAINTAIN 10' MIN. BETWEENPROP. LINE & SEEPAGE FIELDSPROPERTY LINENEW INSPECTION PORTROARING FORK RIVER CR 167 ROW EDGE OF RIVERSYSTEM NOTES1.ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH CDPHE REGULATION #43 ONSITE WASTEWATER TREATMENT SYSTEM REGULATION (OWTS), MOST CURRENT EDITIONAND LOCAL AGENCY REQUIREMENTS WHICH MAY OR MAY NOT SPECIFICALLY BE NOTED ON THE DRAWINGS. THE CONTRACTOR SHALL BE RESPONSIBLE FOR KNOWING ANDCONFORMING TO SUCH SPECIFIC DETAILS AS ARE REFERRED TO IN THE ABOVE MENTIONED REGULATIONS. THIS DRAWING DOES NOT CONSTITUTE AN OWTS PERMIT. A PERMITMUST BE OBTAINED FROM THE APPROPRIATE LOCAL AGENCY. THE ENGINEER MUST OBSERVE THE CONSTRUCTED SYSTEM BEFORE BACKFILL AND PROVIDE A LETTER OFINSPECTION AS REQUIRED BY THE LOCAL AGENCY. A REQUEST FOR INSPECTION MUST BE MADE BY THE CONTRACTOR AT LEAST 48-HOURS PRIOR TO THE EXPECTED TIME OFBACKFILLING.2.DEMAND CALCULATIONS (SEC.43.6.A.3.d)2.A.AUXILIARY DWELLING UNIT/SHOP BUILDING SEPERATE OWTS FROM RESIDENCE AND TREATMENT LEVEL 1 (TL1).2.B.AVERAGE DAILY WASTEWATER FLOW (ADWF) AND ORGANIC LOAD RATE (BOD5) USING TABLE 6-2:2.B.1.LAVATORY: 8.4 gpd, WATER CLOSET (TOILET) : 24.8 gpd, BATH/SHOWER : 14.7 gpd, KITCHEN SINK: 5.8 gpd, LAUNDRY WASHER: 19.5 gpd2.B.2.ADWF = 8.4 gpd * (2 PEOPLE (ADU) + 1 PERSON (SHOP)) + 24.8 gpd * (2 PEOPLE (ADU) + 1 PERSON (SHOP)) + 14.7 gpd * (2 PEOPLE) + 5.8 gpd * (2 PEOPLE)+ 19.5 gpd * (2 PEOPLE) = 180 gpd;3.SEPTIC TANK (SEC.43.9.B.2.d):3.A.SEPTIC TANK: MINI TANK SIZE FOR NEW INSTALLATIONS OTHER THAN SINGLE FAMILY RESIDENCE = 500 GALLONS TWO CHAMBER TANK.3.B.THE TANK IS NOT SUBJECT TO BUOYANCY.4.ABSORPTION AREA CALCULATIONS4.A.THE ABSORPTION AREA IS DOWNHILL OF THE TANK. THEREFORE, GRAVITY FLOW TREATMENT.4.B.SOILS ANALYZED BY BOUNDARIES UNLIMITED INC. (SEPT 24, 2015) IN 8' DEEP TEST PIT; 8"-18" TOPSOIL OVER BROWN SANDY SILTY LOAM WITH BOULDERS (TYPE-2);AVERAGE PERCOLATION RATE OF TWO HOLES = 22 MPI; USE TREATMENT LEVEL 1 LONG TERM ACCEPTANCE RATE (LTAR) OF 0.6 gpd/SF.4.C.MINIMUM SOIL TREATMENT AREA, A: A = ADWF = 180 = 300 S.F. LTAR 0.60 gpd/S.F.4.D.SIZE ADJUSTMENT FACTORS: GRAVITY BED = 1.2; CHAMBER BED = 0.74.D.1.A, adj = 300 SF * 1.2 * 0.7 = 252 SF4.E.GRAVELLESS CHAMBER SYSTEM:4.E.1.INFILTRATOR QUICK4: 252 SF / 12 SF/UNIT = 21 UNITS IN A TRENCH CONFIGURATION4.E.2.ADS BIODIFFUSER (STANDARD): 252 SF / 15 SF/UNIT = 17 UNITS IN A TRENCH CONFIGURATION5.THIS SYSTEM IS SIZED FOR TYPICAL DOMESTIC WASTES ONLY. BACKWASH OR FLUSHING FLOWS FOR REVERSE OSMOSIS UNITES 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 ME 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 3-FEET. UNDER NO CIRCUMSTANCES SHALLCOVER BE LESS THAN 2-FEET.10.SITE PLAN INFORMATION FROM GOOGLE EARTH AND SURVEY CONDUCTED BY OWNER ON MARCH 18, 2015.11.LOCATIONS OF ALL COMPONENTS MAY BE FIELD VARIED AS NECESSARY AS LONG AS ALL MINIMUM DISTANCES AND SLOPES MEET THOSE REQUIRED.SITE EVALUATION1.SITE AND SOIL EVALUATIONS WERE PERFORMED BY:BRUCE D LEWIS, PEBOUNDARIES UNLIMITED INC.923 COOPER AVE., STE. 201GLENWOOD SPRINGS, CO 81601970.945.52522.EVALUATION DATE(S): MARCH 18, 2015.3.SETBACK REQUIREMENTS FOR A TREATMENT LEVEL 1 STA TRENCH/BED, UNLINEDSAND FILTER OR SEEPAGE PIT (PER TABLE 7-1) AND AN ADWF=55.3. GPD:3.A.SPRING OR WELL=100'3.B.POTABLE WATER SUPPLY LINE=25'3.C.STRUCTURE WITH BASEMENT/CRAWLSPACE=20'3.D.STRUCTURE WITHOUT BASEMENT/CRAWLSPACE=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): 3' (TREATMENT LEVEL 1,PRESSURE DOSING)4.SETBACK REQUIREMENTS FOR THE SEPTIC TANK SHALL BE (PER TABLE 7-1):4.A.SPRING OR WELL=50'4.B.POTABLE WATER SUPPLY LINE=10'4.C.STRUCTURE WITH BASEMENT/CRAWLSPACE=5'4.D.STRUCTURE WITHOUT BASEMENT/CRAWLSPACE=5'4.E.PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH=10'4.F.INTERMITTENT IRRIGATION LATERAL, INFILTRATION STRUCTURE=10'4.G.LAKE WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND=50'4.H.DRY GULCH, CUT BANK OR FILL AREA=10'4.I.STA TRENCH/BED, UNLINED SAND FILTER OR SEEPAGE PIT=5'ATTACH REMOVABLE CAP ORTHREADED CLEANOUT ASSEMBLY.INSTALL MARKER IF CAP IS TOBE BURIED.FLOWFINISH GRADE4"Ø PVC RISER4"Ø 45° BEND4" PVC WYE4"Ø SEWER LINESURFACE6"-18"TOPSOILTYPE 2LIGHT TANSANDYSILTY LOAMWITHSTONES UPTO 12"Scale: N.T.S.Cleanout2Scale: N.T.S.Site & Soils Evaluation1SOIL EVALUATION1.SOIL PERCOLATION TESTS IN THENATIVE SOILS (LIGHT TAN SANDYSILTY LOAM WITH STONES UP TO12" BENEATH THE TOPSOILRANGED FROM 20-24 MPIINDICATING A SOIL TYPE OF 2AND A LTAR OF 0.6 GPD/SF8'0010'20'Scale: 1" = 10'GENERAL ABSORPTION AREA NOTES1.INSTALL CHAMBER UNITS IN ACCORDANCE WITHMANUFACTURER'S RECOMMENDATIONS.2.ABSORPTION BEDS SHALL NOT EXCEED 12-FEET' WIDE BY100-FEET IN LENGTH, SHALL PARALLEL THE TOPOGRAPHYAND SHALL BE INSTALLED IN A RECTANGULAR PATTERNWHENEVER POSSIBLE. SIX (6) FEET MINIMUM SEPARATIONDISTANCE BETWEEN BEDS3.THE BOTTOM OF THE ABSORPTION BED SHALL BE LEVELAND THE BOTTOM AND SIDEWALLS MUST BE RAKED TOREMOVE ANY SOIL SMEARS INCURRED DURING THEEXCAVATION. FAILURE TO DO SO MAY REQUIRE THECONTRACTOR TO REPLACE THE ABSORPTION FIELD ATHIS/HER OWN EXPENSE.4.DRAINAGE SWALES ARE TO BE PROVIDED ABOVE ANDAROUND THE FIELD, AS NECESSARY, TO PREVENT SURFACERUNOFF FROM ENTERING ABSORPTION AREA.5.NO EXCAVATION OF THE ABSORPTION FIELD IS TO BE DONEDURING WET WEATHER AND USE OF RUBBER TIREVEHICLES OVER THE ABSORPTION AREA IS STRICTLYPROHIBITED.6.UNSUITABLE MATERIAL EXISTING WITHIN THE FIELD SHALLBE EXCAVATED AND BACKFILL SHALL CONSIST OFIMPORTED LOAMY SAND OR SANDY GRAVEL. THEENGINEER SHALL BE CONTACTED IF BEDROCK ORGROUNDWATER IS ENCOUNTERED IN THEOVEREXCAVATION.ATTACH REMOVABLE CAP OR THREADEDCLEANOUT ASSEMBLY. INSTALL METALMARKER IF CAP IS TO BE BURIED.4"Ø COUPLING (UNION).USE A HOLE SAW TO CUT OUT CIRCLEOFF THE CENTER OF THE UNIT4"Ø PERFORATED PVC PIPE.EXTEND PIPE TO REST ONBOTTOM OF THE BED4"Ø PVC SOLIDPIPE CUTTO FIT (TYP - SEE PLAN)GRAVELLESS CHAMBER SYSTEM:INFILTRATOR QUICK 4, ADVANCED DRAINAGESYSTEMS BIODIFFUSER (STANDARD), ORENGINEER APPROVED EQUAL.COVER WITH 6" OF TOPSOIL AND REVEGETATE12" MIN.,24" MAX.9' WIDE BED (MAX)FREE DRAINING GRAVELS;Scale: N.T.S.Chamber Bed4ByRevisionNo.Date 923 Cooper AvenueSuite 201Glenwood Springs, CO 81601tele: 970.945.5252fax: 970.384.2833Engineer or Surveyor SealSheetClient Information:PROJECT NO.FILE NAME:Designer:Drafter:Date:N:\PROJECTS\2013\13002- Haftel - RiverLot\dwg\Survey - OWTS 2.dwg 6/22/2021 3:37 PM NORTH9. 8. 7. 6. 5. 4. 3. 2.6/22/21BUIbdlsurvey - owts 2.dwg13002970.379.7107GLENWOOD SPRINGS, CO 81601351 COUNTY ROAD #167HOWARD & GABRIELA HAFTELGarfield County, Colorado 0351 COUNTY ROAD 167 - aka CORYELL ROAD Onsite Wastewater Treatment System HAFTEL AUXILARY/SHOP OWTS C.1NATIVE BACKFILLSEPERATION FABRIC10' MIN BETWEEN PROP. LINE & FEILDEXISTING GROUNDEXISTING 3' HIGHBOULDER WALLUNDISTURBED NATIVE SOILS19082B R UCE D LEWISCOL O RADO LICENSEDPROFESSIONAL ENG INEER 6/22/21EXISTING GROUND