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HomeMy WebLinkAboutOWTS Engineer's Design Specs OriginalGRAPHIC SCALE 80 0 25 50 ( IN FEET ) 1 inch = 50 ft. FIN 4" COU 4" SEWER TCP SOLS AND NATURAL BACKFILL ovm TRQl m 12' WIN. C01 18' WAX. COIFR Ir 4"x4"x4'J PVC WYE SEWER CLEAN OUT DETAIL N.T.S. 4 / PARCEL No. 217909407733 tx 30' -RISING SUN DITCH EASEMENT ' BOOK 1456, PAGE 961, 973-& D60 -- - TICH_ I 7 5420 J - - - i INSTALL 164 STANDARD QUICK 4 PLUS INFILTRATOR CHAMBERS IN 11 ROWS OF 24 EACH WITH END CAPS \ c INSTALL END CAPS WITH 4"0 PVC INSPECTION -PORTS AND CAPS AT BOTH ENDS OF EACH CHAMBER ROW, FLUSH OR ABOVE GRADE (TYPICAL) 30' HOLY CROSS ENERGY RIGHT-OF-WAY F RECEPTION NO. 919375 \ ' ' \ - 125 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS, LONG SWEEP BENDS 110 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS. LONG SWEEP BENDS E 95 LF 4" PVC 0 2% MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS' GRADE SWALE TO INTERCEPT AND _ _ 80 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS, LONG _SWEEP BENDS ` DIVERT STORM WATER RUNOFF _96,_ _ - - \ 70 LF 4" PVC 0 2% MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS ' 60 LF 4" PVC 02% MIN. EFFLUENT UNE, FITTINGS, LONG SWEEP BENDS ^ 50 LF 4" PVC 0 2% MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS 40 LF 4" PVC 0 27 MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS 30 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS, LONG SWEEP BENDS 0 25 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS, LONG SWEEP BENDS 20 LF 4" PVC 0 2% MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS 11 \ SOIL EXXX333- \ AREA -- -- 1 oo - - - \GRADE SWALE TO INTERCEPT AND DIVERT STORM WATER RUNOFF -_. - FRALO 12 -HOLE DISTRIBUTION BOX VBOX12 WITH, GASKET, FLOW \ \ EQUALIZERS, FRR 12" RISER, AND LfD FLUSH WITH FINISH GRADE -- --.. 35 LF 4" PVC EFFLUENT UNE 0 2% MIN. I i I w \ 10 \�Z �� - I ✓ \ RISERS COVE PROFILE RO E PIT N o` $ "-FLUSH WITH FINISH GRADE AND EFFLUENT FILTER I O `` - 0 2,000 GALLON 2 COMPARTMENT TANK, RS 28± z -25 LF 4 PVC INFLUENT UNE 0 2% MI -4"0N. \ -4"0 PVC CLEAN OUT WITH RISER AND CAP, FLUSH WITH SURFACE I '� \\ ` ' PROFILE PIT ?� (0 \ PRO -1 _ ELEV:5431f PROPOSED \ \ RESIDENCE _ - 3 BEDROOMS \ \ \ (SEE ARCH. PLANS) \ ( C ISTING WELL \CD VNSTALL SEWAGE GRINDER EJECTOR PUMP IN \ p CRAWL SPACE / BASEMENT IF NECESSARY PARCEL No. LOT 2 LOT 3 \\ I 217910300001 / 1\\ RUIZ MINOR SUBDIVISION RUIZ MINOR SUBDIVISION., `\ �^ _. 30' ACCESS EASEMENT O \ RECEPTION NO. 795361' RISER 45' SWEEP BEND _--------- -� ---0E 13 E_ �-BC - � OE -y _--. - - - _ I I \ GENERAL NOTES 1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH GARFIELD COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM REGULATIONS, EVEN THOUGH ALL SUCH REQUIREMENTS ARE NOT SPECIFICALLY NOTED ON THIS DRAWING. THE CONTRACTOR SHALL BE RESPONSIBLE FOR SUCH SPECIFIC DETAILS AS ARE REFERRED TO IN THE ABOVE MENTIONED REGULATIONS. 2. SYSTEM DESIGN FLOWS: PROPOSED RESIDENCE: 3 BEDROOMS FUTURE RESIDENCE: 3 BEDROOMS TOTAL 6 BEDROOMS DESIGN FLOW: 675 GAL/DAY TABLE 6-1 PROPOSED SEPTIC TANK MATERIAL: REINFORCED CONCRETE MINIMUM SEPTIC TANK CAPACITY: 1,750 GALLONS TABLE 9-1 SOIL TYPE: 4A TACTILE EVALUATION TABLE 10-1 TREATMENT LEVEL: TL1 PROPOSED TREATMENT SYSTEM: CHAMBERS IN TRENCH CONFIGURATION METHOD OF EFFLUENT APPLICATION: GRAVITY LONG TERM ACCEPTANCE RATE (LIAR): 0.15 GAL/DAY/SQ. FT. TABLE 10-1 REVD SOIL TREATMENT AREA:A= 675 GPD = 4,500 SQ. FT. FORMULA 43.10.0 0.15 GPD/S.F. SIZE ADJUSTMENT FACTOR FOR APPLICATION METHOD: 1.0 TABLE 10-2 SIZE ADJUSTMENT FACTOR FOR DISTRIBUTION MEDIA: 0.7 TABLE 10-3 ADJUSTED SOIL TREATMENT AREA: A= 4,500 SQ. FT. x 0.7 = 3,150 SQ. FT. MINIMUM NUMBER OF CHAMBERS: 3,150 S.F. 12 S.F./CHAMBER - 263 CHAMBERS INSTALL 264 STANDARD INFILTRATOR QUICK 4 PLUS CHAMBERS IN 11 PARALLEL TRENCH CONFIGURA11ON OF 24 CHAMBERS EACH, AS SHOWN. 3. TOPSOIL SOIL EXCAVATED FROM SITE ACCEPTABLE IF NO CLAY IS PRESENT. 4. VEHICULAR TRAFFIC IS PROHIBITED ON THE TANK AND ON THE FIELD. 5. CLEANOUTS ARE REQUIRED AT ALL BENDS AND AT LEAST EVERY 150 FEET ALONG THE EFFLUENT LINE. 6. INSTALL RISERS AS NECESSARY TO BRING ALL ACCESS POINTS AT OR ABOVE THE FINAL GRADE. 7. LOCATIONS OF ALL COMPONENTS MAY BE VARIED AS NECESSARY AS LONG AS ALL MINIMUM DISTANCES AND SLOPES MEET THOSE REQUIRED. 8. PROVIDE POSITIVE DRAINAGE OF SURFACE WATER AWAY FROM ABSORPTION AREA USING DRAINAGE SWALES AS NECESSARY. 9. THE CONTRACTOR SHALL VERIFY ALL DEPTHS, SLOPES AND CLEARANCES FROM THE PROPOSED HOME, WELLS AND STRUCTURES, PRIOR TO CONSTRUCTION. 10. THIS DRAWING DOES NOT CONSTITUTE AN DINTS PERMIT. PERMIT MUST BE OBTAINED FROM APPROPRIATE COUNTY OFFICIALS. 11. THIS SYSTEM IS SIZED FOR TYPICAL DOMESTIC WASTES ONLY. BACKWASH OR FLUSHING FLOWS FOR REVERSE OSMOSIS UNITS OR WATER SOFTENERS OR FILTERS SHOULD NOT BE INTRODUCED INTO THIS SYSTEM. 12. SEPTIC TANK SHALL HAVE RISES OVER EACH ACCESS MANHOLE AND ALL RISERS SHALL EXTEND TO OR ABOVE FINAL GRADE. 13. THE OWNER SHALL VERIFY ADEQUATE SEPARATION DISTANCES FROM THE SYSTEM, TO ALL ADJACENT WELLS, PRIOR TO CONSTRUCTION. 14. THE APPLICANT OR LICENSED INSTALLER SHALL NOTIFY THE COUNTY AND THE ENGINEER NO LESS THAN TWO BUSINESS DAYS IN ADVANCE TO SCHEDULE A FINAL FIELD INSPECTION OF THE SYSTEM, PRIOR TO BACKFILLING THE SYSTEM. 15. THE APPLICANT OR LICENSED INSTALLER SHALL PROVIDE AN AS -BUILT DRAWING OF THE SYSTEM TO THE COUNTY AND ENGINEER, UPON COMPLETION. 16. PLACE 2" BLUE BOARD INSULATION ABOVE ALL PIPES WHENEVER DEPTH IS LESS THAN FROST DEPTH. 17. ALL SEWER LINES SHALL BE 4 -INCH DIAMETER POLYVINYL CHLORIDE (PVCs SCHEDULE 40, AND SHALL BE INSTALLED WITH MINIMUM SLOPES NO LESS `THAN 27. 18. THE SURVEY MOWN HEREON WERE OBTAINED FROM THE "RUIZ SITE PLAN" AS PREPARED BY BOOK CLIFF SURVEY SERVICES INC, DATED 11/13/20. 19. TOPOGRAPHIC CONTOUR INFORMATION FROM AERIAL MAPPING CIRCA. 2020. 20. PROPOSED LAYOUT OF THE SITE OBTAINED FROM OWNERS ON 9/15/22. ABSORPTION TRENCH NOTES 1. ABSORPTION TRENCH LATERALS SHALL NOT EXCEED 100 FEET IN LENGTH. 2. THE BOTTOM OF THE ABSORPTION TRENCHES SHALL BE LEVEL. 3. DRAINAGE DITCHES ARE TO BE PROVIDED ABOVE AND AROUND TRENCH, AS NECESSARY, TO PREVENT SURFACE RUNOFF FROM ENTERING ABSORPTION AREA. 4, ABSORPTION TRENCH BOTTOM AND SIDEWALLS MUST BE RAKED TO REMOVE SOIL SMEARS INCURRED DURING EXCAVATION. 5. NO EXCAVATION OF ABSORPTION FIELD IS TO BE DONE DURING WET WEATHER AND USE OF RUBBER TIRE VEHICLES OVER TRENCH AREA IS PROHIBITED TO MAINTAIN GOOD SOIL STRUCTURE. 6. UNSUITABLE MATERIAL EXISTING WITHIN THE TRENCH SHALL BE EXCAVATED AND BACKFILL SHALL CONSIST OF ONSITE SELECT OR PIT -RUN MATERIAL. 7. CONTRACTOR SHALL INSTALL 4 INCH DIAMETER SCHEDULE 40 PVC INSPECTION PORTS AND CAPS AT BOTH ENDS OF EACH ROW OF CHAMBERS, IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION GUIDELINES. 8. CONTRACTOR SHALL SNAP OFF THE MOLDED SPLASH PLATES LOCATED AT THE BOTTOM OF THE END CAPS, AND INSTALL THE SPLASH PLATES AT THE APPROPRIATE SLOTS BELOW THE INLETS IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION GUIDELINES. 9. CONTRACTOR SHALL ALIGN THE CHAMBER ROWS PARALLEL WITH THE THE CONTOURS OF THE EXISTING TERRAIN. THE CONTRACTOR MAY CURVE THE ALIGNMENT OF THE CHAMBER ROW, AS NECESSARY. IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION GUIDELINES. 10. CONTRACTOR SHALL PROVIDE AND VERIFY A MINIMUM 4 FEET OF DEPTH, OR GREATER FROM THE BOTTOMS OF INSTALLED CHAMBERS TO CONFINING BEDROCK. 11. CONTRACTOR SHALL PROVIDE AND VERIFY A MINIMUM 12 INCHES OF COVER, OR GREATER FROM THE TOPS OF INSTALLED CHAMBERS TO FINISH GRADE. 12. CONTRACTOR SHALL CONNECT THE 4 INCH DIAMETER PVC THE DISTRIBUTION LATERAL PIPES AT THE MOLDED CIRCULAR BLOCK OUTS. WHICH ARE SITUATED 8 INCHES ABOVE THE BOTTOMS OF THE STANDARD QUICK 4 PLUS CHAMBER END CAPS, IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION GUIDELINES. 13. DISTRIBUTION BOX, ROTO -FLOW WEIRS, RISERS, AND LID SHALL BE: # DBOX12 A HIGH DENSITY POLYETHELINE ASSEMBLY MANUFACTURED BY FRALO, AND DISTRIBUTED BY VALLEY PRECAST INC. OR, EQUAL. - - - - - _ - -- --- _ - IN , -DE- iE __ E -OE •=DE E �,E-+^,E--�E �+E �E�-T-N89295,3� " E 338.01' - > - _ ' -- -- - -' -- - - - 1- ___ -21 ZY FOR AND ON BEHALF OF HIGH COUNTRY ENGINEERING, INC. x Lli Z Z Oopr,Q O F, 0 O�j Er� 00 zuNz LL0)- o Dir 0 1=F0� JZ�O w 0 m < u In ❑: 0 N N O O U m U N U7 'm=o i F z r U 3 u w O 0 V 5432 PRO -1 PRO -2 5432 LEGEND: EL=5431} EL=5428t r 5431 5431 F W ® TOP SOIL• USDA SOIL TYPE 4A 5530 W 5430 ® USDA SOIL TYPE 4A 5429 5429 F 5428 5428 F W(PON0 ❑m Z 5527 5427 ..W Z 5426 5426 W 5425 5425 W wU)0 0 Q 5424 5424 [- Z O mZ„ °d5423 5423 °d 5422 5422 O 5421 5421 U 5420 5420 = 5419 5419 NOTES: 1. PROFILE PITS WERE EXCAVATED BY OWNER WRING SEPTEMBER, 2022. 2 NO FREE WATER WAS ENCOUNTERED IN THE PITS AT THE TIME OF THE SOILS EVALUATION. 3. SOIL SAMPLES WERE FIELD EVALUATED AND CLASSIFIED BY COUNTRY ENGINEERING INC. ON SEPTEMBER 22, 2022, BY VISUAL AND TACTILE METHODS ESTABLISH BY THE U.S. DEPARTMENT OF AGRICULTURE AND THE NATURAL RESOURCE CONSERVATION SERVICE FIN 4" COU 4" SEWER TCP SOLS AND NATURAL BACKFILL ovm TRQl m 12' WIN. C01 18' WAX. COIFR Ir 4"x4"x4'J PVC WYE SEWER CLEAN OUT DETAIL N.T.S. 4 / PARCEL No. 217909407733 tx 30' -RISING SUN DITCH EASEMENT ' BOOK 1456, PAGE 961, 973-& D60 -- - TICH_ I 7 5420 J - - - i INSTALL 164 STANDARD QUICK 4 PLUS INFILTRATOR CHAMBERS IN 11 ROWS OF 24 EACH WITH END CAPS \ c INSTALL END CAPS WITH 4"0 PVC INSPECTION -PORTS AND CAPS AT BOTH ENDS OF EACH CHAMBER ROW, FLUSH OR ABOVE GRADE (TYPICAL) 30' HOLY CROSS ENERGY RIGHT-OF-WAY F RECEPTION NO. 919375 \ ' ' \ - 125 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS, LONG SWEEP BENDS 110 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS. LONG SWEEP BENDS E 95 LF 4" PVC 0 2% MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS' GRADE SWALE TO INTERCEPT AND _ _ 80 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS, LONG _SWEEP BENDS ` DIVERT STORM WATER RUNOFF _96,_ _ - - \ 70 LF 4" PVC 0 2% MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS ' 60 LF 4" PVC 02% MIN. EFFLUENT UNE, FITTINGS, LONG SWEEP BENDS ^ 50 LF 4" PVC 0 2% MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS 40 LF 4" PVC 0 27 MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS 30 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS, LONG SWEEP BENDS 0 25 LF 4" PVC 0 2% MIN. EFFLUENT UNE, FITTINGS, LONG SWEEP BENDS 20 LF 4" PVC 0 2% MIN. EFFLUENT LINE, FITTINGS, LONG SWEEP BENDS 11 \ SOIL EXXX333- \ AREA -- -- 1 oo - - - \GRADE SWALE TO INTERCEPT AND DIVERT STORM WATER RUNOFF -_. - FRALO 12 -HOLE DISTRIBUTION BOX VBOX12 WITH, GASKET, FLOW \ \ EQUALIZERS, FRR 12" RISER, AND LfD FLUSH WITH FINISH GRADE -- --.. 35 LF 4" PVC EFFLUENT UNE 0 2% MIN. I i I w \ 10 \�Z �� - I ✓ \ RISERS COVE PROFILE RO E PIT N o` $ "-FLUSH WITH FINISH GRADE AND EFFLUENT FILTER I O `` - 0 2,000 GALLON 2 COMPARTMENT TANK, RS 28± z -25 LF 4 PVC INFLUENT UNE 0 2% MI -4"0N. \ -4"0 PVC CLEAN OUT WITH RISER AND CAP, FLUSH WITH SURFACE I '� \\ ` ' PROFILE PIT ?� (0 \ PRO -1 _ ELEV:5431f PROPOSED \ \ RESIDENCE _ - 3 BEDROOMS \ \ \ (SEE ARCH. PLANS) \ ( C ISTING WELL \CD VNSTALL SEWAGE GRINDER EJECTOR PUMP IN \ p CRAWL SPACE / BASEMENT IF NECESSARY PARCEL No. LOT 2 LOT 3 \\ I 217910300001 / 1\\ RUIZ MINOR SUBDIVISION RUIZ MINOR SUBDIVISION., `\ �^ _. 30' ACCESS EASEMENT O \ RECEPTION NO. 795361' RISER 45' SWEEP BEND _--------- -� ---0E 13 E_ �-BC - � OE -y _--. - - - _ I I \ GENERAL NOTES 1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH GARFIELD COUNTY PUBLIC HEALTH AGENCY ON-SITE WASTEWATER TREATMENT SYSTEM REGULATIONS, EVEN THOUGH ALL SUCH REQUIREMENTS ARE NOT SPECIFICALLY NOTED ON THIS DRAWING. THE CONTRACTOR SHALL BE RESPONSIBLE FOR SUCH SPECIFIC DETAILS AS ARE REFERRED TO IN THE ABOVE MENTIONED REGULATIONS. 2. SYSTEM DESIGN FLOWS: PROPOSED RESIDENCE: 3 BEDROOMS FUTURE RESIDENCE: 3 BEDROOMS TOTAL 6 BEDROOMS DESIGN FLOW: 675 GAL/DAY TABLE 6-1 PROPOSED SEPTIC TANK MATERIAL: REINFORCED CONCRETE MINIMUM SEPTIC TANK CAPACITY: 1,750 GALLONS TABLE 9-1 SOIL TYPE: 4A TACTILE EVALUATION TABLE 10-1 TREATMENT LEVEL: TL1 PROPOSED TREATMENT SYSTEM: CHAMBERS IN TRENCH CONFIGURATION METHOD OF EFFLUENT APPLICATION: GRAVITY LONG TERM ACCEPTANCE RATE (LIAR): 0.15 GAL/DAY/SQ. FT. TABLE 10-1 REVD SOIL TREATMENT AREA:A= 675 GPD = 4,500 SQ. FT. FORMULA 43.10.0 0.15 GPD/S.F. SIZE ADJUSTMENT FACTOR FOR APPLICATION METHOD: 1.0 TABLE 10-2 SIZE ADJUSTMENT FACTOR FOR DISTRIBUTION MEDIA: 0.7 TABLE 10-3 ADJUSTED SOIL TREATMENT AREA: A= 4,500 SQ. FT. x 0.7 = 3,150 SQ. FT. MINIMUM NUMBER OF CHAMBERS: 3,150 S.F. 12 S.F./CHAMBER - 263 CHAMBERS INSTALL 264 STANDARD INFILTRATOR QUICK 4 PLUS CHAMBERS IN 11 PARALLEL TRENCH CONFIGURA11ON OF 24 CHAMBERS EACH, AS SHOWN. 3. TOPSOIL SOIL EXCAVATED FROM SITE ACCEPTABLE IF NO CLAY IS PRESENT. 4. VEHICULAR TRAFFIC IS PROHIBITED ON THE TANK AND ON THE FIELD. 5. CLEANOUTS ARE REQUIRED AT ALL BENDS AND AT LEAST EVERY 150 FEET ALONG THE EFFLUENT LINE. 6. INSTALL RISERS AS NECESSARY TO BRING ALL ACCESS POINTS AT OR ABOVE THE FINAL GRADE. 7. LOCATIONS OF ALL COMPONENTS MAY BE VARIED AS NECESSARY AS LONG AS ALL MINIMUM DISTANCES AND SLOPES MEET THOSE REQUIRED. 8. PROVIDE POSITIVE DRAINAGE OF SURFACE WATER AWAY FROM ABSORPTION AREA USING DRAINAGE SWALES AS NECESSARY. 9. THE CONTRACTOR SHALL VERIFY ALL DEPTHS, SLOPES AND CLEARANCES FROM THE PROPOSED HOME, WELLS AND STRUCTURES, PRIOR TO CONSTRUCTION. 10. THIS DRAWING DOES NOT CONSTITUTE AN DINTS PERMIT. PERMIT MUST BE OBTAINED FROM APPROPRIATE COUNTY OFFICIALS. 11. THIS SYSTEM IS SIZED FOR TYPICAL DOMESTIC WASTES ONLY. BACKWASH OR FLUSHING FLOWS FOR REVERSE OSMOSIS UNITS OR WATER SOFTENERS OR FILTERS SHOULD NOT BE INTRODUCED INTO THIS SYSTEM. 12. SEPTIC TANK SHALL HAVE RISES OVER EACH ACCESS MANHOLE AND ALL RISERS SHALL EXTEND TO OR ABOVE FINAL GRADE. 13. THE OWNER SHALL VERIFY ADEQUATE SEPARATION DISTANCES FROM THE SYSTEM, TO ALL ADJACENT WELLS, PRIOR TO CONSTRUCTION. 14. THE APPLICANT OR LICENSED INSTALLER SHALL NOTIFY THE COUNTY AND THE ENGINEER NO LESS THAN TWO BUSINESS DAYS IN ADVANCE TO SCHEDULE A FINAL FIELD INSPECTION OF THE SYSTEM, PRIOR TO BACKFILLING THE SYSTEM. 15. THE APPLICANT OR LICENSED INSTALLER SHALL PROVIDE AN AS -BUILT DRAWING OF THE SYSTEM TO THE COUNTY AND ENGINEER, UPON COMPLETION. 16. PLACE 2" BLUE BOARD INSULATION ABOVE ALL PIPES WHENEVER DEPTH IS LESS THAN FROST DEPTH. 17. ALL SEWER LINES SHALL BE 4 -INCH DIAMETER POLYVINYL CHLORIDE (PVCs SCHEDULE 40, AND SHALL BE INSTALLED WITH MINIMUM SLOPES NO LESS `THAN 27. 18. THE SURVEY MOWN HEREON WERE OBTAINED FROM THE "RUIZ SITE PLAN" AS PREPARED BY BOOK CLIFF SURVEY SERVICES INC, DATED 11/13/20. 19. TOPOGRAPHIC CONTOUR INFORMATION FROM AERIAL MAPPING CIRCA. 2020. 20. PROPOSED LAYOUT OF THE SITE OBTAINED FROM OWNERS ON 9/15/22. ABSORPTION TRENCH NOTES 1. ABSORPTION TRENCH LATERALS SHALL NOT EXCEED 100 FEET IN LENGTH. 2. THE BOTTOM OF THE ABSORPTION TRENCHES SHALL BE LEVEL. 3. DRAINAGE DITCHES ARE TO BE PROVIDED ABOVE AND AROUND TRENCH, AS NECESSARY, TO PREVENT SURFACE RUNOFF FROM ENTERING ABSORPTION AREA. 4, ABSORPTION TRENCH BOTTOM AND SIDEWALLS MUST BE RAKED TO REMOVE SOIL SMEARS INCURRED DURING EXCAVATION. 5. NO EXCAVATION OF ABSORPTION FIELD IS TO BE DONE DURING WET WEATHER AND USE OF RUBBER TIRE VEHICLES OVER TRENCH AREA IS PROHIBITED TO MAINTAIN GOOD SOIL STRUCTURE. 6. UNSUITABLE MATERIAL EXISTING WITHIN THE TRENCH SHALL BE EXCAVATED AND BACKFILL SHALL CONSIST OF ONSITE SELECT OR PIT -RUN MATERIAL. 7. CONTRACTOR SHALL INSTALL 4 INCH DIAMETER SCHEDULE 40 PVC INSPECTION PORTS AND CAPS AT BOTH ENDS OF EACH ROW OF CHAMBERS, IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION GUIDELINES. 8. CONTRACTOR SHALL SNAP OFF THE MOLDED SPLASH PLATES LOCATED AT THE BOTTOM OF THE END CAPS, AND INSTALL THE SPLASH PLATES AT THE APPROPRIATE SLOTS BELOW THE INLETS IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION GUIDELINES. 9. CONTRACTOR SHALL ALIGN THE CHAMBER ROWS PARALLEL WITH THE THE CONTOURS OF THE EXISTING TERRAIN. THE CONTRACTOR MAY CURVE THE ALIGNMENT OF THE CHAMBER ROW, AS NECESSARY. IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION GUIDELINES. 10. CONTRACTOR SHALL PROVIDE AND VERIFY A MINIMUM 4 FEET OF DEPTH, OR GREATER FROM THE BOTTOMS OF INSTALLED CHAMBERS TO CONFINING BEDROCK. 11. CONTRACTOR SHALL PROVIDE AND VERIFY A MINIMUM 12 INCHES OF COVER, OR GREATER FROM THE TOPS OF INSTALLED CHAMBERS TO FINISH GRADE. 12. CONTRACTOR SHALL CONNECT THE 4 INCH DIAMETER PVC THE DISTRIBUTION LATERAL PIPES AT THE MOLDED CIRCULAR BLOCK OUTS. WHICH ARE SITUATED 8 INCHES ABOVE THE BOTTOMS OF THE STANDARD QUICK 4 PLUS CHAMBER END CAPS, IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION GUIDELINES. 13. DISTRIBUTION BOX, ROTO -FLOW WEIRS, RISERS, AND LID SHALL BE: # DBOX12 A HIGH DENSITY POLYETHELINE ASSEMBLY MANUFACTURED BY FRALO, AND DISTRIBUTED BY VALLEY PRECAST INC. OR, EQUAL. - - - - - _ - -- --- _ - IN , -DE- iE __ E -OE •=DE E �,E-+^,E--�E �+E �E�-T-N89295,3� " E 338.01' - > - _ ' -- -- - -' -- - - - 1- ___ -21 ZY FOR AND ON BEHALF OF HIGH COUNTRY ENGINEERING, INC. x Lli Z Z Oopr,Q O F, 0 O�j Er� 00 zuNz LL0)- o Dir 0 1=F0� JZ�O w 0 m < u In ❑: 0 N N O O U m U N U7 'm=o i F z r U 3 u w O 0 V row- ,Z V ,. N _Z Oin @ M W �00a i W(PON0 ❑m Z �. � u ..W Z z�� wZ- Z W W ¢a~ U W wU)0 _ Q ov J00) [- Z O mZ„ �M:a Lf) O �'�z MW `f U 0 = IL ❑ Z Z PROJECT NO. 2221023.00 OWTS - O 1 C1 row- 2 M } - U�U Z ❑m LLJ 0 0 QQ Z W Z 0 0- Q QLL UN �M:a A IS MW `f Ob ❑ Z PROJECT NO. 2221023.00 OWTS - O 1 C1