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Home My WebLink AboutPlans/01300 0 Civil Engineering Q' Surveying r• & Beyon, cn - °r • ?F e Inc. 923 Cooper Avenue 20 Glenwood Springs, CO 81601 0 10 GRAPHIC 20 SCALE 40 80 (-): •'�° ,'1,•;c..) h� • 9 . : / :�••.,,y ) , •: 4&, /' • • '4 ._-- Client Information: ALBERT & CHRISTINE HARRIS 3200 COUNTY ROAD 237 SILT CO 81652 (970 456-9883 811 Know what's below. Call before you dig. Garfield County, Colorado HARRIS RESIDENCE 3200 CR 237, SILT, PARCEL 1, GRAND HOGBACK EXEMPT. CORR. PLAT OWTS ( IN FEET) 1 inch = 20 ft. &TOPSOIL CONCRETE LID (MIN.)7CONCRETE LID FINISH GRADE /moi \jai V V V / 1 ATTACH REMOVABLE CAP OR o /� / PRECAST RISER �` Co 0 6 z Footers THREADED CLEANOUT ASSEMBLY. /EDGE OF GRAVEL DRIVEWAY INSTALL MARKER IF CAP IS TO FINISH GRADE BE BURIED. Sheet 17008 FILE NAME: HARRIS OWTS - --'3" Designer: BDL Drafter: C 1 Date: il 04.03.17 _4 < a ,,Acer - IN INFLOW SHALL ENTER THE p 4"0 PVC RISER 1-•----- 18" -' w vlE >T °- LARGER CHAMBER limo. - NOTE: Top of Slope 4" SCH 40 PVC GRAVITY f Well 4" PVC WYE 4II 0 45° BEND �� STATE APPROVED 1,000 GALLON PIPELINE FROM HOUSE/ FLOW II II _ TWO (2) CHAMBER CONCRETE SEPTIC TANK. CONCRETE TWO CHAMBER Gate SEPTIC TANK yoeoIGlope 1,000 GAL (MIN)) 7 Cleanout 4"0 SEWER LINE 0 SPLITTER BOX N.T.S. 4" PVC OBSERVATION PIPE (BOTH ENDS) TSP ,'`' CONSTRUCT A 6" DRAINAGE SWALE ABOVE �+ THE ABSOROPTION TRENCHES AREA 1' Test Pil t3 i ifr 54 -INFILTRATOR QUICK4 CHAMBERS .♦ ` &Test Hole//t IN THREE TRENCHES (AS SHOWN) ♦ OR ` 36 -ADS BIODIFFUSER (STD) CHAMBERS ,e1 ♦ ♦� .♦ �iestPitaIN THREE TRENCHS (NOT SHWON♦. ♦ TytP.,»zN.T.S. 1"CRUSHED ROCK, 6" DEEP TO LEVEL TANK eptic Tank PROVIDE 6' MIN SEPARATION 1 ♦♦ �, 8, kook BETWEEN EDGE OF TRENCHES .♦♦♦.,,♦.♦,♦. PROVICE 15' MIN ♦♦ ♦♦ SEPARATION BETWEEN 40 ♦♦ TRENCH FIELD AND FENCE , Fence Fence ATTACH REMOVABLE CAP OR THREADED CLEANOUT ASSEMBLY. INSTALL MARKER IF CAP IS TO FINISH BE BURIED. GRADE 411111111116.- ---A _ O A. _ ONSITE WASTEWATER TREATMENT (OWTS) PROPERTY LINE 4"0 PVC RISER WASTEWATER TREATMENT FOR THE NEW RESIDENCE LOCATED AT 3200 COUNTY ROAD 237 SILT, CO WILL BE HANDLED BY A NEW Proposed County 4" PVC WYE ...„...--- 4"0 45° BEND ONSITE WASTEWATER TREATMENT SYSTEM (OWTS). THE OWTS DESIGN WAS COMPLETED IN ACCORDANCE WITH GARFIELD COUNTY COMMUNITY DEVELOPMENT DEPARTMENT'S ON-SITE WASTEWATER TREATMENT SYSTEM (OWTS) REGULATIONS. Road Easement 1 FLOW I- 1 THE PROPOSED THREE (3) BEDROOM RESIDENCE WILL BE CONSIDERED FOR DETERMINING MAXIMUM DESIGN FLOWS. Edge of Asphalt Edge of ksphalt C/L Stripe �' 2370 4"0 SEWER LINE Two WayCleanout DESIGN CALCULATIONS: DESIGN WASTE WATER FLOW (SEE SEC 43.6 A.2. a & f) : Site N.T.S. 75 GPD/PERSON X 2 PERSONS/BEDROOMS X 3 BEDROOMS = 450 GALS/DAY SEPTIC TANK SIZE: plan i 3 BEDROOMS = 1,000 GALLON CAPACITY TWO COMPARTMENT TANK (SEE TABLE 9-1). TANK. TANKS ARE NOT SUBJECT TO BUOYANCY. 0 N.T.S. SOIL TREATMENT AREA: ACCORDING TO THE SUBSOILS EXAMINED IN TWO 8 FT DEEP TEST PITS ON MARCH 24TH, NO GROUNDWATER ENCOUNTERED IN THE PROFILE TEST PIT, THE AVERAGE PERCOLATION RATE WAS DETERMINED TO BE 38 MINUTES PER INCH (MPI), AND THE SOILS ARE "TYPE 3." (RELATIVELY DENSE, CLAYEY SILTS WITH COBBLES). GROUND SURFACE SLOPE MEASURED BETWEEN 9 TO 15 PERCENT IN THE SOIL TREATMENT AREA, WHICH IS LESS THAN 30%. THE SYSTEM SHALL BE BE DESIGNED UTILIZING THIS INFORMATION WITH A TREATMENT LEVEL 1 LONG TERM ACCEPTANCE RATE (LTAR) OF 0.50 GPD/SF. (SEE TABLE 10-1). SF C) AREA = DESIGN FLOW (GALS/DAY) = 450 = 900 (SEC 43.10 SET BACK DISTANCES LTAR (GALS/DAY/SF) 0.5 SIZE ADJUSTMENT FACTORS: TRENCH, GRAVITY FLOW =1.0 (TABLE 10-2) DISTRIBUTION MEDIA (CHAMBERS) = 0.7 (TABLE 10-3) ADJUSTED AREA = 1.0 X 0.7 X 900 SF. = 630 SF GENERAL ABSORPTION AREA NOTES 1, SETBACK REQUIREMENTS FOR A TREATMENT LEVEL 1(TL1) STA TRENCH/BED, UNLINED SAND FILTER OR OPTION #1: INFILTRATOR QUICK4: 630 SF/12 SF/UNIT = 52.5; USE 54 UNITS IN TRENCH CONFIGURATION. 1. INSTALL CHAMBER UNITS IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS. SEEPAGE PIT (PER TABLE 6.28-1&2) AND MD ADWF= 1000 GPD: 1.A. SPRING OR WELL= 100' 1.B. POTABLE WATER SUPPLY LINE=25' 1.C. POTABLE WATER SUPPLY CISTERN=a OPTION #2: ADS BIODIFFUSER (STD): 630 SF/18.75 SF/UNI-= 33.6; USE 36 UNITS IN TRENCH CONFIGURATION. NOTES: 2. ABSORPTION TRENCHES SHALL BE 3' WIDE , AND SHALL BOTTOM TO BE LEVEL AND FLAT OVER ENTIRE AREA TO WITHIN 0.05'±, (T(p) IF PARALLEL THE TOPOGRAPHY, TRENCHES SHALL HAVE A MIN. NECESSARY, LEVEL SURFACE AREA OF 6' DISTANCE BETWEEN THEM, WITH IMPORTED CONCRETE SAND 3. THE BOTTOM OF THE ABSORPTION BED SHALL BE LEVEL AND THE BOTTOM AND SIDEWALLS MUST BE RAKED TO REMOVE ANY SOIL SMEARS INCURRED DURING THE EXCAVATION. FAILURE TO DO SO MAY REQUIRE THE CONTRACTOR TO REPLACE THE ABSORPTION FIELD AT HIS/HER OWN EXPENSE. • WISHED GROUND - MAINTAIN POSITIVE SLOPE AWAY FROM TOP SURFACE OF THE 4"0 COUPLING IL/N , CHAMBER TRENCHES, USE A HOLE SAW TO CUT OUT CIRCLE OFF THE CENTEROFTHEUNIT Undisturbed Natvesas STANDARD CUT TO FIT. REMOVABLE INSTALL MARKER � INSPECTION PORT, TYP. (4A' PVC SOLID PIPE LOCATE PER PLAN VIEW,ATTACH CAP OR THREADEDCLEANOUTASSEMBLY IF CAP IS TO BE BURIED. 4'2 PVC SOLID PIPE CUT TO FIT GRAVELLESS CHAMBER SYSTEM DRAINAGE INFILTRATORGINNERAPPROVED 1 .D. DWELLING = 20' 1.E. PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH =10' 1.F. INTERMITTENT IRRIGATION LATERAL, NFILTRATION STRUCTURE= 25' 1.G. LAKE, WATER COURSE, IRRIGATION DITCH, STREAM OR WETLAND= 100' CUT BANK OR FILL AREA - DRY GULCH, , ' 1.1. SEPTIC TANK=S' 1,1 RESTRICTIVE LAYER OR GROUNDWATER (VERTICAL): 2' (TREATMENT LEVEL 1, PRESSURE DOSING) 3. SETBACK REQUIREMENTS FOR THE SEPTIC -ANK SHALL BE (PER TABLE 6.28-1): 1. ABSORPTION TRENCH EXCAVATION SHALL BE INSPECTED BY THE DESIGN ENGINEER PRIOR TO PLACEMENT OF CHAMBERS 2. SYSTEM DESIGN IS SIZED FOR TYPICAL DOMESTIC WASTES ONLY. BACKWASH OR FLUSHING FLOWS FROM REVERSE OSMOSIS OR WATER SOFTENERS AND/OR FILTERS SHALL NOT BE INTRODUCED INTO THIS SYSTEM 3. CLEAN OUTS ARE REQUIRED AT THE HOUSE AND AT ALL BENDS AND AT LEAST 100 -FEET BETWEEN THE HOUSE AND SEPTIC TANK. 4. ALL PIPE, FITTINGS, AND CONNECTIONS SHALL BE V/ATER TIGHT TO PREVENT INFILTRATION. 4, DRAINAGE SWALES ARE TO BE PROVIDED ABOVE AND AROUND • /al' VED EADVANCED SYSTEMSBIODIFFUSER(STOIDARD),OR3.A. ENGINEERAPPRovEOEnuAL SPRING OR WELL= 50' - 3.B. POTABLE WATER SUPPLY LINE=10' 5. CONCRETE SEPTIC TANK AND ABSORPTION FIELD S-IALL NOT BE PLACED IN AREAS OF ANY VEHICLE TRAFFIC OR DRIVEWAYS. THE FIELD, AS NECESSARY, TO PREVENT SURFACE RUNOFF Trench #1 FROM ENTERING ABSORPTION AREA, NO EXCAVATION OF THE ABSORPTION FIELD IS TO BE DONE DURING WET WEATHER AND USE OF RUBBER TIRE VEHICLES \ cr,•.l • ' 4'0 PERFORATED PVC PIPE BOTTOM OF THE EST ON EXTEN5. BEDOFIHE 3.C. POTABLE WATER SUPPLY CISTERN=f' 3.D. DWELLING=5' 3.E. PROPERTY LINE, PIPE OR LINED IRRIGATION DITCH =10' 3.F. INTERMITTENT IRRIGATION LATERAL, NFILTRATION STRUCTURE= 10' 3.G. LAKE WATER COURSE, IRRIGATION DI -CH, STREAM OR WETLAND=100' 6. A "POLYLOK, INC." EFFLUENT FILTER SHALL BE INSTALLED IN 2ND TANK CHAMBER (AT OUTLET) PER MANUFACTURER. 7. INSPECTION PORTS SHALL BE INSTALLED AT BOTH ENDS OF EACH ROW OF CHAMBERS, 100 LINEAL FEET IS MAXIMUM LENGTH OF CHAMBERS IN A TRENCH. OVER THE ABSORPTION AREA IS STRICTLY PROHIBITED. MIN. i Trench #2 3.H. DRY GULCH, CUT BANK OR FILL AREA=10' 8. INSTALL RISERS AS NECESSARY TO BRING ALL ACCESS PORTS TO FINAL GRADE. PORTS SHALL BE MARKED IF CAPS ARE TO BE 6. UNSUITABLE MATERIAL EXISTING WITHIN THE FIELD SHALL BE EXCAVATED AND BACKFILL SHALL CONSIST OF IMPORTED LOAMY SAND OR SANDY GRAVEL, THE ENGINEER SHALL BE CONTACTED IF BEDROCK OR GROUNDWATER IS ENCOUNTERED IN THE OVEREXCAVATION. 7. TOPSOIL COVER MAY BE VARIED (1 -FOOT MINIMUM, 2 -FOOT 6' 36" Typical Chamber Trench System " p 3.1. STA TRENCH/BED, UNLINED SAND FILTER OR SEEPAGE PIT=5' BURIED. 9. INSTALL 3 -INCH THICK BLUEBOARD INSULATION, 3 -FEET WIDE, OVER SEWER AND EFFLUENT PIPE WHEREVER DEPTH IS LESS THAN 3 -FEET. GROUND COVER SHALL NOT BE LESS THAN 2 -FEET. 10. SYSTEM COMPONENT LOCATIONS MAY VARY AS NECESSARY AS LONG AS ALL MINIMUM DISTANCES AND SLOPES COMPLY WITH REGULATIONS. 11. ALL SYSTEM COMPONENTS MUST BE INSPECTED BY THE DESIGN ENGINEER AND GARFIED COUNTY PRIOR TO ANY BACKFILL. MAXIMUM)TO ALLOW FOR LANDSCAPING. N.T.S.0 12. REMAINING SURVEY INFORMATION FROM OTHERS. 13. PERCOLATION TEST RESULTS AND SOILS EVALUATION PERFORME BY "BOUNDARIES UNLIMITED INC." ON MARCH 14TH, 2017. SUMMARY TREATMENT IS PROPOSED AS A WASTEWATER TREATMENT LEVEL 1 AND A GRAVELLESS CHAMBER ABSORPTION FIELD IN A TRENCH CONFIGURATION. THE SEPTIC TANK WILL BE A 1,000 GALLON (MIN.) STATE APPROVED TWO CHAMBER CONCRETE TANK. THE ABSORPTION FIELD TRENCHES WILL BE GRAVITY FED ANC THE MINIMUM REQUIRED SOIL TREATMENT AREA IS 630 SF (UTILIZING STORAGE -DISTRIBUTION CHAMBERS). /01300 0 Civil Engineering Q' Surveying r• & Beyon, cn - °r • ?F e Inc. 923 Cooper Avenue Suite 201 Glenwood Springs, CO 81601 tele: 970.945.5252 fax: 970.384.2833 Engineer or Surveyor S-aI (-): •'�° ,'1,•;c..) h� • 9 . : / :�••.,,y ) , •: 4&, /' • • '4 ._-- Client Information: ALBERT & CHRISTINE HARRIS 3200 COUNTY ROAD 237 SILT CO 81652 (970 456-9883 811 Know what's below. Call before you dig. Garfield County, Colorado HARRIS RESIDENCE 3200 CR 237, SILT, PARCEL 1, GRAND HOGBACK EXEMPT. CORR. PLAT OWTS m Revision Co 0 6 z PROJECT NO. Sheet 17008 FILE NAME: HARRIS OWTS Designer: BDL Drafter: C 1 Date: 04.03.17 SEPT -01-17-4551 4.1 -� c E X W CO crsc cs c- C.9