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Home My WebLink AboutEngineered Plan - 2018CONSTRUCTION NOTES TOP OF FOUNDATION EL= 49.0± 1.) ALL WORK SHALL CONFORM TO THE STATE ENVIRONMENTAL CODE, TITLE 5 (310 CMR 15.000): STANDARD REQUIREMENTS FOR THE SITING, CONSTRUCTION, INSPECTION, UPGRADE, AND EXPANSION OF ON -SITE SEWAGE TREATMENT AND DISPOSAL SYSTEMS AND FOR THE TRANSPORT AND DISPOSAL OF SEPTAGE, AND THE LOCAL BOARD OF HEALTH REGULATIONS. 2.) ANY SEPTIC SYSTEM COMPONENT INSTALLED IN A LOCATION WHERE THERE IS POTENTIAL FOR VEHICLES OR HEAVY EQUIPMENT TO PASS OVER IT SHALL BE DESIGNED TO WITHSTAND AN H-20 LOADING. IF UNDER AN IMPERVIOUS SURFACE, SYSTEM SHALL BE VENTED TO THE ATMOSPHERE. 3.) TO MINIMIZE UNEVEN SETTLING, SEPTIC TANKS AND D-BOX SHALL BE INSTALLED ON A STABLE MECHANICALLY -COMPACTED BASE ON SIX INCHES OF CRUSHED STONE. 4.) COVERS OVER THE INLET AND OUTLET TEES OF THE SEPTIC TANK, THE DISTRIBUTION BOX, AND THE SOIL ABSORPTION SYSTEM SHALL BE RAISED TO WITHIN 6" OF FINAL GRADE. LEACHING 45.7f/ FIELDS, TRENCHES, AND OTHER SOIL ABSORPTION SYSTEMS WITHOUT ACCESS MANHOLES SHALL HAVE AT LEAST ONE (1) INSPECTION PORT CONSISTING OF PERFORATED 4" PVC PIPE PLACED VERTICALLY TO THE BOTTOM OF THE SOIL ABSORPTION SYSTEM WITH A CAP, TIED WITH MAGNETIC MARKING TAPE, ACCESSIBLE TO WITHIN 3" OF FINAL GRADE. 5.) PIPING SHALL CONSIST OF 4" SCHEDULE 40 PVC OR EQUIVALENT. PIPE SHALL BE LAID ON A MINIMUM CONTINUOUS GRADE OF NOT LESS THAN 2% FROM THE BUILDING TO THE SEPTIC TANK, AND NOT LESS THAN 1 % OTHERWISE. 6.) DISTRIBUTION LINES FOR THE SOIL ABSORPTION SYSTEM SHALL BE 4" DIAMETER SCHEDULE 40 PVC (OR EQUIVALENT) LAID AT 0.005 FT/FT. UNLESS OTHERWISE NOTED. LINES SHALL BE CAPPED AT END OR AS NOTED. 7.) LINES FROM THE DISTRIBUTION BOX TO BE LEVEL FOR THE FIRST TWO (2) FEET BEFORE PITCHING TO THE SOIL ABSORPTION SYSTEM. DISTRIBUTION BOX SHALL BE WATER TESTED TO ASSURE EVEN DISTRIBUTION. 8.) GROUT TO BE USED AT ALL POINTS WHERE PIPES ENTER OR LEAVE ALL CONCRETE STRUCTURES IN ORDER TO PROVIDE A WATERTIGHT SEAL. 9.) HEAVY EQUIPMENT SHALL NOT BE ALLOWED TO OPERATE OVER THE LIMITS OF THE SEWAGE DISPOSAL FIELD DURING THE COURSE OF CONSTRUCTION OF THE SYSTEM. 10.) IN ACCORDANCE WITH 310 CMR 15.221, ALL SYSTEM COMPONENTS SHALL BE MARKED WITH MAGNETIC MARKING TAPE. 11.) THERE ARE NO KNOWN WELLS WITHIN 150' OF THE PROPOSED SOIL ABSORPTION SYSTEM. 12.) FROM THE DATE OF THE INSTALLATION OF THE SOIL ABSORPTION SYSTEM UNTIL RECEIPT OF THE CERTIFICATE OF COMPLIANCE, THE PERIMETER SHALL BE STAKED AND FLAGGED TO PREVENT USE OF THE AREA THAT MAY CAUSE DAMAGE TO THE SYSTEM. 13.) THE DESIGNER WILL NOT BE RESPONSIBLE FOR THE SYSTEM AS DESIGNED UNLESS CONSTRUCTED AS SHOWN ON PLAN. ANY CHANGES SHALL BE APPROVED IN WRITING BY THE DESIGNER. 14.) THE BOARD OF HEALTH REQUIRES INSPECTION OF ALL CONSTRUCTION BY AN AGENT OF THE BOARD OF HEALTH AND THE DESIGNER. THE DESIGNER SHALL -`CERTIFY IN WRITING THAT THE SEWAGE DISPOSAL SYSTEM WAS INSTALLED IN ACCORDANCE WITH THE TERMS OF THE PERMIT AND THE APPROVED PLANS. 48 HOURS ADVANCE NOTICE IS REQUESTED. 15.) LOCATION OF UTILITIES IS APPROXIMATE AND CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING THE LOCATION OF ALL UNDERGROUND AND OVERHEAD UTILITIES PRIOR TO COMMENCEMENT OF ANY WORK. THIS INCLUDES, BUT IS NOT LIMITED TO, REQUESTS TO DIGSAFE, ANY PRIVATE UTILITY COMPANIES, AND THE LOCAL WATER DEPARTMENT. 16.) CONTRACTOR SHALL VERIFY THAT ALL WASTELINES ARE CONNECTED BY WATER TESTING WITHIN THE DWELLING PRIOR TO INSTALLATION OF ANY SEPTIC COMPONENTS. 17.) CONTRACTOR SHALL VERIFY EXISTING INVERT ELEVATIONS PRIOR TO INSTALLATION OF ANY SEPTIC SYSTEM COMPONENTS. 18.) TEST HOLES COMPLETED PER STATE ENVIRONMENTAL CODE, TITLE 5. SOILS CAN BE VARIABLE AND TEST HOLE DATA IS NO GUARANTEE OF SOIL CONDITIONS IN OTHER AREAS. IF SOILS DIFFER FROM THOSE SHOWN IN THE SOILS LOGS, DESIGN ENGINEER IS TO INSPECT THE SOILS PRIOR TO PROCEEDING WITH INSTALLATION OF ANY SEPTIC COMPONENTS. 19.) EXISTING SEPTIC COMPONENTS TO BE LOCATED, PUMPED DRY, FILLED WITH CLEAN SAND AND ABANDONED IN PLACE OR REMOVED AS REQUIRED. AREA TO BE COMPACTED TO MINIMIZE SETTLING. TEST HOLE LOGS Test Hole #1 (EL=49.1t) Depth Elev. Layer Soil Class Soil Color Comments 0"-8" 48.4 A Loomy Sand 10YR 3/2 8"-28" 46.8 B Loamy 10YR 4/6 V.Frioble Medium Sand 28"-168" 35.1 C Medium/Coarse 2.5Y 6/4 Clean Sond Loose Test Hole #2 (EL=49.7t) Depth Elev. Layer Soil Class Soil Color Comments 0"-9" 48.9 A Loomy Sand 1OYR 3/2 9"-32" 47.0 B Loamy :: 10YR 4/6 V.Frioble Medium Sand 32"-132" 38.7 C Medium/Coarse 2.5Y 6/4 Clean Sand Loose DATE OF TESTING: 09/28/18 SOIL EVALUATOR: DAN CROTEAU S13772 BOARD OF HEALTH AGENT: PHILIP RENAUD, HA PERCOLATION RATE: LESS THAN 2 MIN/INCH ® 46" (C Layer) NO GROUNDWATER ENCOUNTERED 2nd Floor PIdn. N.T.S. Bedroom > Family #1 Room Both Kitchen Dining 1st Floor Plan a EL=48.2± 45.4 o 00 1 V± Map 119 Parcel 45 EL=48.5± GAS BAFFLE- 1,500 GALLON SEPTIC TANK MINIMUM 20" DIAMETER CONCRETE MINIMUM 20" DIAMETER COVERS COVERS RAISED TO WITHIN 6" OF RAISED TO WITHIN 6" OF FINISH FINISH GRADE (OR AS NOTED) Vent GRADE (OR AS NOTED) EL=49.5 /,/ -H o GEOTEXTILE 46.7± 45.3 I FABRIC z � + 1 --._- - ; 45.1 F 44.9 �t 3 4' to \45.2 N 44.8 -. w a N o 1-1/2" STONE DB-3 (Double wash) H-20 Rated TWO (2) H-20 500 GALLON PRECAST DI -BOX 42.8 CONCRETE LEACH CHAMBERS WITH 4' OF 8' STONE ON ENDS AND 4' ON SIDES Longest Run 7 T-l- LEACH CHAMBERS (END VIEW) FLOW PROFILE NOT TO SCALE EL=35.1 Bottom Test Hole (47:�) �48 48 _ - I \ \ O � �//- �O D/w \ \ Lot 70 SAS �� -2,.\ �,800 Sq. Ft./<� / � I N,y. �s Test \ o,Pit #2 (49.4) (Boulder / (48.5) / Shed, c (49.7) 3,- \ Te. DB o Full Cellar o Pit #1 House #1 off° Vent \ (48.1) 2 Bedroom 4; Q T Crowl 49. (48.4) ST Se#19 ate Space Proposed U Existing ti Outlet 1 O Outlet EL = 45.7 (48.2) / �O !y EL = 45.71 I� Se#19ot// �(48.0) Map 72 p �(48.2) Parcel 46 48 48 (47.1) VARIANCES REQUESTED Local Upgrade Approvals: 310 CMR 15.403 Variances: 310 CMR 15.221 (7) General Construction Requirements for All System Components: 1.),.Soil Absorption System > 36" Below Finish G•ode 50" Held 14" Variance Requested (Not to Exceed 72") GRAPHIC SCALE 20 0 10 20 40 ( IN FEET ) 1 inch = 20 ft. 80 TBM EL = 50.0 Top of Bound (Assumed Ell SITE LOCUS NOT TO SCALE 1.) Assessor's Map 119 Parcel 44 2.) Book 28176 Page 255 3.)PLBK79PG101 4.) This property is not in a Groundwater Protection District 5.) This property is not in the Flood Zone SYSTEM DESIGN CALCULATIONS SEWAGE DESIGN FLOW REQUIRED: 2 BEDROOM DWELLING 110 GPD / BEDROOM = 220 GPD REQUIRED SEWAGE DESIGN FLOW PROVIDED: TWO (2) H-20 500 GALLON LEACH CHAMBERS WITH 4' STONE ON THE ENDS AND 4' STONE ON THE SIDES Vt = [(25.0 x 12.83) + 2(25.0 + 12.83) (2) x .74 = 349 GPD PROVIDED 349 GPD PROVIDED > 220 GPD REQUIRED SEPTIC TANK CAPACITY REQUIRED: 330 GPD X 200 SEPTIC TANK CAPACITY PROVIDED: 1,500 GALLON SEPTIC TANK A GARBAGE DISPOSAL IS NOT PERMITTED WITH THIS DESIGN FLOW Permit valid for REPAIR ill SE I' l IC„ SN'S 1'F.M ONLY ilflc to State and Local septic. variances. Board of Health review and approval is required fur any future lad(ii.tions/rendcations/ahcration, to sewage facilities anil/or structu+es/(INeelhng. Ma 72 Parcel 43 Va tnottth Health lllnLin t 7 A Name Date • • >i•S "�.�a► till D-Box Note: This plan is only valid for current regulations and may not be suitable for future regulation changes that may occur. N.T.S.