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HomeMy WebLinkAboutEngineer PlanDEEP OBSERVATION HOLE LOGS DATE OF TESTS: APRIL 6, 2022 PERCOLATION RATE: OBSERVATION HOLE #3 PERCOLATION RATE < 2MIN./INCH WITNESSED BY: BRYAN J. WEINER, CEC PHILIP RENAUD, HEALTH AGENT NO GROUNDWATER ENCOUNTERED DEEP OBSERVATION HOLE 1. EL. = 30.7± DEPTH FROM SOIL SOIL SOIL COLOR SOIL OTHER SURFACE HORIZON TEXTURE (MUNSELL) MOTTLING 0" - 8" A SANDY LOAM 10 YR 3/1 WEAK, LOOSE 8" - 22" B SAND 10 YR 516 SINGLE GRAIN, LOOSE 22" - 132" C COARSE SAND 2.5 Y 7/3 SINGLE GRAIN, LOOSE DEEP OBSERVATION HOLE 2. EL. = 30.7± DEPTH FROM SOIL SOIL SOIL COLOR SOIL OTHER SURFACE HORIZON TEXTURE (MUNSELL) MOTTLING 0" - 10" A SANDY LOAM 10 YR 311 WEAK, LOOSE 10" - 22" B SAND 10 YR 5/6 SINGLE GRAIN, LOOSE 22" - 132" C COARSE SAND 2.5 Y 7/3 SINGLE GRAIN, LOOSE DEEP OBSERVATION HOLE 3. EL. = 28.5± DEPTH FROM SOIL SOIL SOIL COLOR SOIL SURFACE HORIZON TEXTURE (MUNSELL) MOTTLING OTHER 0" - 31" A SANDY LOAM 10 YR 4/3 WEAK, LOOSE 31" - 43" B SAND 10 YR 5/6 SINGLE GRAIN, LOOSE 43" - 132" C COARSE SAND 2.5 Y 6/4 SINGLE GRAIN, LOOSE NOTES: 1. GARBAGE GRINDERS ARE NOT ALLOWED WITH THIS DESIGN. 2, ALL WATER FIXTURES TO BE WATER TESTED BY CONTRACTOR TO VERIFY ALL SEWER EXIT LOCATIONS PRIOR TO INSTALLATION OF ANY SYSTEM COMPONENTS. 3. THE INSTALLER IS RESPONSIBLE FOR ASSURING THAT COMPONENTS OF THE SEWAGE DISPOSAL SYSTEM ARE DESIGNED WITH SUFFICIENT STRENGTH TO SUSTAIN ALL LOADS TO BE IMPOSED ON THEM. ANY COMPONENT OF THE SYSTEM SUBJECT TO VEHICULAR TRAFFIC SHALL COMPLY WITH A MINIMUM STANDARD OF A.A.S.H.T.O. H-20 WHEEL LOADS. 4. PRIOR TO SETTING ANY SEWAGE DISPOSAL SYSTEM COMPONENT, INSTALLER SHALL VERIFY EXISTING CONDITIONS. INCLUDING ELEVATIONS OF EXIT INVERTS, AND REPORT ANY DISCREPANCIES TO THE DESIGN ENGINEER. THE INSTALLER SHALL COORDINATE WITH THE PLUMBING SUBCONTRACTOR TO VERIFY THE COMPATIBILITY OF THE PROPOSED BUILDING SEWER EXIT ELEVATION WITH THE BUILDING'S EXISTING PLUMBING PRIOR TO CONSTRUCTION. ANY CONFLICTS SHALL BE REPORTED TO THE DESIGN ENGINEER. 5, ALL GRAVITY SEWER PIPE SHALL BE 4" DIA. SCH 40 PVC UNLESS OTHERWISE NOTED. THE MINIMUM SLOPE OF 4" DIA. SCH 40 PVC SHALL BE 0.01 FT/FT. 6. NO PART OF THIS DESIGN SHALL BE ALTERED WITHOUT PRIOR APPROVAL FROM THE DESIGN ENGINEER AND THE AGENT OF THE LOCAL BOARD OF HEALTH. ALL REQUESTS FOR CHANGES SHALL BE MADE IN WRITING PRIOR TO CONSTRUCTION. 7. THE USE OF ALTERNATE MANUFACTURERS FOR SYSTEM COMPONENTS SHALL NOT BE APPROVED IF THE USE OF THEIR EQUIPMENT REQUIRES CHANGES IN DESIGN. 8. THE INSTALLER SHALL ASCERTAIN THE LOCATION OF EXISTING UNDERGROUND UTILITIES PRIOR TO EXCAVATION, AND SHALL PROTECT UTILITIES WITHIN THE WORK AREA DURING CONSTRUCTION. 9. ALL SYSTEM COMPONENTS SHALL BE MARKED WITH MAGNETIC MARKING TAPE OR A COMPARABLE MEANS IN ORDER TO LOCATE THEM ONCE BURIED. IF APPLICABLE: 10. FILL MATERIAL FOR SYSTEMS CONSTRUCTED IN FILL SHALL BE CLEAN GRANULAR SAND, FREE OF ORGANIC MATTER AND OTHER DELETERIOUS MATERIALS. THE SAND SHALL BE GRADED SUCH THAT NOT MORE THAN 45% OF THE SAMPLE, BY WEIGHT, SHALL BE RETAINED ON THE #4 SIEVE. THE FILL SHALL NOT CONTAIN ANY MATERIAL LARGER THAN 2 INCHES. THE MATERIAL THAT PASSES THE #4 SIEVE SHALL MEET THE FOLLOWING GRADATION REQUIREMENTS. NOTE: SIEVE PERCENT ALL WATER FIXTURES TO BE WATER TESTED BY CONTRACTOR TO VERIFY ALL SEWER SIZE PASSING EXIT LOCATIONS PRIOR TO INSTALLATION OF ANY SYSTEM COMPONENTS. #4 100% # 50 10%-100% # 100 0%-20% # 200 0%-5% r�rA Ae%\ I 1 hIP1Tr-. REMOVE TOPSOIL AND UNSUITABLE MATERIAL WITHIN 5' OF LEACHING CHAMBER DOWN TO "C" HORIZON IN DOH #3 AND REPLACE WITH SAND FILL IN ACCORDANCE WITH NOTE #10. VIF NOTE: CONTRACTOR TO VERIFY IN FIELD THE EXISTING INVERT OUT OF THE BUILDING. NOTIFY ENGINEER OF ANY DISCREPANCIES PRIOR TO START OF CONSTRUCTION. 9" MIN FINISH GRADE 36" MAX RAISE COVERS WITHIN 6" OF FINISH GRADE (TYP.) FLEXIBLE BUTYL RUBBER SEALANT ''_ '• • _ LIQUID LEVEL Q_ _ - L T'. r 26.4f 19' DROP: 2" MIN. 14• EXISTING 25.65 T 3" MAX. r MIN SLOPE FOR A 4" 4'A" LIQUID • PVC PIPE 0.01 FT/FT 1,500 GALLON SEPTIC DEPTH (TYP,) TANK W/SANITARY :• TEES DESIGN CALCULATIONS: DESIGN FLOW. 3 BEDROOMS (2 EXISTING AND 1 PROPOSED) AT 110 GAL. PER DAY PER BEDROOM = 330 GPD REQUIRED SEPTIC TANK CAPACITY. 330 x 200% = 660 GAL. REQUIRED CAPACITY. USE 1,500 GAL. SEPTIC TANK (MIN. ALLOWED) REQUIRED LEACHING AREA: A 29.51 x 9.83' EFF. WIDTH x 2' EFF. DEPTH LEACHING CHAMBER CAN LEACH. Vt=(29.5x9.83x.74)+[(29.65+12.83+ 29.65 x 6. 83) x 2 x 0.74]=331.5 GPD Vt = 331.5 ? 330 GPD REQ. REQUIRED RESERVE AREA. AREA REQUIRED: 330 GPD 10,74 = 446 S.F. AREA PROVIDED: 438±S.F. + 1421S.F. = 580 S.F. 580 S.F. > 446 S. F. REQ. INSTALL: ONE ( 1) - 1,500 GAL. SEPTIC TANK ONE ( 1) - DISTRIBUTION BOX - 5 OUTLET ONE ( 1) - 29.51 x 9.83' EFF. WIDTH x Z EFF. DEPTH LEACHING CHAMBER ASSESSORS MAP 70 PARCEL 91 PROPOSED - PERC. Q EL. = 23.4' RECONFIGURATION OF PAVED DRIVEWAY PRECAST CONCRETE RISERS (TYP.) COMPACTED BASE WITH 6" LAYER OF T= T--�-=1 CRUSHED STONE III-III-III_III-I l-III-III-III-III-III-III-III_ (TYP.) 1,500 GALLON SEPTIC TANK 10, KNOCKOUT'S TO' BE GROUTED WITH HYDRAULIC CEMENT(TYP.) 24.90 25.40 GAS BAFFLE USE 'TUF-TITE' OR APPROVED EQUIVALENT (TYP.) - SUBGRADE (TYP.) 103 RAISE COVERS WITHIN 6" OF FINISH GRADE (TYP.) _:III=III I 9" MIN 36" MAX SPEED LEVELERS (TYP.) --- -- -. 24.73 EFFECTIVE 24,50 ,i DEPTH = 2' ROP: 2" MIN LINES EXISTING D'BOX MUST 22 50 REMAIN LEVEL FOR 2 FT, BEFORE PITCHING DOWN TO VARIES LEACHING FIELD i - ±24' " I 1 ±11, SCHEMATIC FLOW PROFILE ALL INSTALLATIONS MUST CONFORM TO THE MINIMUM REQUIREMENTS OF TITLE 5 ASSESSORS MAP 7 \ PARCEL 85 COVERS TO BE PLACED WITHIN 3" OF FINISH GRADE (TYP.) FINISH GRADE = 28.0 - 26.3 3/" TO 1Y-' DOUBLE WASHED STONE i -- {--a -J 2" LAYER OF Ye" •• I TO Yz" STONE/ c 3' 5E] EA c C ` OR GEOTEXTILE =3 e--3 r -3 F- FABRIC 511-3t -L Y 5' 4'-10" VARIES VARIES SEE DETAIL GROUNDWATER NOT ENCOUNTERED AT DEPTH OF= 11.0' (EL. = 17,5) LEACHING CHAMBER L 0 r 1 l 40 MIL VINYL LINER (5' HIGH) ASSESSORS MAP 70 PARCEL 84 EXISTING BULKHEAD TO BE REBUILT EDGE op;AVEMENT BA Ss R/ VER R pA D l ' o M P 1 A A 1 1 inch = 10 ft. 1 EXISTING BRICK STOOP TO REMOVED PROPOSED RESERVE -1 AREA (±142 S.F.) PROPOSED DISTRIBUTION BOX (D'B-5) 7E(1)29' - 6" LENGTH x 9'- 10" EFF. WIDTH x 2'- 0" EFF. DEPTH LEACHING CHAMBER UCT BY PLACING THREE 8'-6" X 4'-10" X 3'-0" LEACHING CHAMBER UNITS END TO END. SEE DETAIL BELOW FOR STONE DIMENSIONS. GALLON LEACH CHAMBER UNITS AS MANUFACTURED BY SHOREY PRECAST OR EQUAL). YARMOUTH MA KEY MAP REFERENCE: ASSESSORS MAP 70, PARCEL92 L.C.P. 22604A DATUM: ELEVATIONS SHOWN HEREON ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD 1988) ASSESSORS MAP 70 PARCEL 83 PROPOSED 5' SOIL REMOVAL I HEREBY CERTIFY THAT THE CONDITIONS SHOWN HEREON ARE ON THE GROUND AS PROPOSED LEACHING CHAMBER OF FIELD SURVEY 05-03-21. (12.83' x 29.65' x 6.83' x 29.66) DATE: SEPTEMBER 30,2022 i 23.8 PROPOSED 40 MIL VINYL LINER S2 / ASSESSORS MAP 70 PARCEL 93 ,Vg / V DISPOSAL SYSTEM -�f_- COMPONENTS TO BE "'------_ ry PUMPED, REMOVED, AND DISPOSED OF OFF -SITE IN rr- 4 ACCORDANCE TO TITLE 5 AND LOCAL BOARD OF ; HEALTH REGULATIONS I } I BENCHMARK -TAG 80LTHYDRANT EL. 2345 (SEE DATUM NOTE) FEB 6 8-2023 HMTH ®EPT. Yarmouth Health Department APPROVED i W' LEGEND ■ BOUND O IRON PIPE HYDRANT D4 WATER GATE Z UTILITY POLE ® ELECTRIC METER LIGHT POLE © WOOD POST -t-- PICKET FENCE C 0- SPLIT RAIL FENCE STOCKADE FENCE -e - UNDERGROUND GAS SERVICE -w- WATER SERVICE -emu- OVER HEAD WIRE x23s SPOT ELEV. I � } CONIFER TREE 0 COASTA engineering i 260 Cranberry Hwy, Orleans, MA 1 508.255.6511 P 506,255.6700 F SCALE O of IY W W J F U) ~ F- mLU 0D 1: C1961 :q z O w O z C) G Vl O} OU) V vJ Z 0- 00 ='Vwn U) Q W 11=10, DECIDUOUS TREE DATE Date 27 PROPOSED CONTOUR DRAWN BY DAV GM NOTE: CHECKED BY THE INFORMATION HEREON HAS BEEN PREPARED ACCORDING TO THE N BPM REQUIREMENTS OF TITLE 5 OF THE STATE ENVIRONMENTAL CODE FOR o SUBSURFACE DISPOSAL OF SANITARY SEWAGE AND LOCAL BOARD OF N HEALTH REGULATIONS. O ti c INSPECTION NOTE 0. THE STATE ENVIRONMENTAL CODE, TITLE 5, REQUIRES INSPECTION(S) of C2. 1 A Vr I tit JtVVAUt UIJVUJAL JTJ I LIVI CT I Ht UtJ1U11 t1VUINttK INSTALLATION CONTRACTOR MUST NOTIFY THE DESIGN ENGINEER N RIOR TO THE START OF INSTALLATION FOR DISCUSSION ON REQUIRED INSPECTIONS. c W OF SHEETS m PROJECT NO. 0 C19 17.00