Loading...
HomeMy WebLinkAboutApproved_Septic_Plan_-_674_Turnpike_Street_Tue_Dec_12_2023_08-49-30 - Plans - 674 TURNPIKE STREET 8/21/2023 HIGH STRENGTH 4" PVC TEE 4" PVC TEE CONC. COVER BAG PLACED ON DOUBLE-STIGHED WITH ZABEL FILTER NOTE: aACT IRON N CLE NOUT WITH GAS BAFFLE TOP S.T,= 241.1± MODEL A1800 OR AS PER TITLE 5, ALL COMPONENTS OF THE "�I" TYPE SEAMS CAST IRON GLEANOUT 4"CNERENE AGGREGATE OR W/COVER FOR TWIST PLUG OR 250 - - 25t1 STRAW a} li 1 EQUIVALENT) APPROVED EQUAL FINISH GRADE 9" MIN., 36" MAX. APPROVED EQUAL. SEWAGE DISPOSAL SYSTEM SHALL BE MARKED SYSTEM GROSS-SECTION A-;A ABOVE TOP OF TANK {RISER FILTER SHALL 8E WITH MAGNETIC TAPE PRIOR TO BACKFILL. GLEANED ANNUALLY SEWN IN SPOUT _ _ SCALE I -20' l-ORIZ. INV. I N S.T. AND COVER r0 FINISH GRADE} �, TOP OF HIGH STRENGTH 246 - 1"=8' tRT. - 246 CHAMBERS = 240.05 INV. OUT BEG. INV. = 239.80 STRAPPING FOR AGGREGATE DR STRAW TOPsaU PROP. E�JST 20' DIA. INV. OUT S.T. HOLDING HOSE UNDERLAYMENT GRADE MIN. =239.53 DIRTBAG IN PLACE SIDE VIEW GRADE _ = 239.80 =239.47 8 Ll d d d d d d d d 242 - - 242 11' .02 ftfft F-j -j INFILTRATOR {TrP.} d d d / _ _ 3" MIN I 6' .07 ft ft VENTED MULTIPORT END CAP END INV. WATER FLOW d 4 d d - --- - -- 4 SOLID SCH. 40 PVC INV. AT BLDG. - - 2 MIN. Faj F-FROM PUMP a 4 1 f4°/FT.MIN- j 4"SOLID SCH. 4o PVC � - k = 239.47 TESTING DETAILS: 238 - - 238 240.30 ,3" MAx. I ( 6" MIN A a R " SUMP s'° - - -{ d d BOTTOM OF LEACHING FIELD H LIQUID ROVED EQUAL. WATERTIGHT JOINT _ 1 j$ T MIN MIN - - - TITLE 5 FILL PERP 5cH 4o Pve PUMP D(RTBAG HAS BEEN TESTED UNDER ASTM (SEE LOCAL LEVEL I 1 ' 10" - -j DISCHARGE . E.S.H.W T PLUMBING REDS-) I - 14° FOR . 6' ilt�,FSTON� s 0-7880 AND ASTM-7701. THESE ARE 2,34 - - 234 MIN. 4' ' G ,�- D' HOSE PARENT MATERIAL TANK TEES ]- 19" FOR 5' BOTTOM OF STANDARD TEST METHODS FOR DETERMINING = - I INV. IN OPENING FLOW RATE OF WATER AND SUSPENDED SHALL BE 24" H 6' t ACCOMQDATES SOLIDS RETEN770N FROM A CLOSED OBSERVATION PORT AN INTERNAL PLUMBING �a DEPTH � CHAMBERS LOCATED TOP VIEW UP TO 4" GEOSYNTHETIC BAG. TESTING SUMMARY MODIFICATION IS BENEATH z cf DEPTH =239.70 G QO p 238.80 NOT TO SCALE 230 - T.P.-1 - 23t? REQUIRED TO � DEPTH DISCHARGE AVAILA LE UPON REQUEST. MANHOLES FACILITATE GRAVITY HOSE FLOW TO THE SYSTEM. 1000 GAL. 500 GAL. D-BOX OUTLET ELEVATIONS SHALL BOTTOM OF CHAMBERS TO BE LEVEL 1� T„ I BE EQUAL. A RISER TO WITHIN 6" Qf OF GRADE IS REQUIRED IF >9" OF 6" MIN. 3/4" - 1 1/2" STONE COVER IS PROPOSED. LENGTH=53' i VARIANCES REQUESTED TO THE NORTH ANDOVER BOARD 250 - � ,0, OF HEALTH REGULA1105LFOUNDATION GALLON SEPTIC TANK DISTRIBUTION BOX LEACHING FIELD 53' x 12' _ 3 S.F. j� 0� S.B. D N AN OFFSET DISTANCE OF 43' IS REQUESTED FROM THE SEPTIC TANK TO A MONOLITHIC 2-COMPARTMENT TANK IS REQUIRED. HS-20 LOADING REQUIRED � 4 B.V.W. SEE CALCULATIONS FOR LEACHING AREA PROVIDED. AN OFFSET DISTANCE OF 51' IS REQUESTED FROM THE LEACH FIELD TO A / f B.V.W. EXIST. I CERTIFY THE DESIGN CONFORMS SEPTIC TANK SCHEDULE OF ELEVATIONS PROPOSED AS-BUILT f HOUSE TO THE REMEDIAL USE APPROVAL, SEPTIC TANK SHALL BE A PRECAST, REINFORCED CONCRETE TANK MADE SYSTEM PROFILE COMPANY DESIGN: GUIDANCE, AND WATERTIGHT. CONSTRUCTION MATERIALS AND DIMENSIONS SHALL TOP CONCRETE FOUNDATION 246.50 1"'=20' HDRIZ 310 CMR 15,00- THE DESIGNER CONFORM TO TITLE 5 AND AASHTO HS 10 REQUIREMENTS AND PLACED ON GRAPHIC SCALE SCALE.' 1 2' VERT. HAS COMPLETED- ANY NECESSARY INVERT AT FOUNDATION 240,30 i71 ASTABLE MECHANICALLY COMPACTED LEVEL BASE. TRAINING BY THE INFILTRATOR INVERT TANK INLET 240.05 20 0 10 20 40 80 ! 1 COMPANY TO APPROPRIATELY TANK SYSTEM TO BE VENTED THROUGH THE BUILDING PLUMBING SYSTEM / DESIGN THIS sAN AR Y SYSTEM. E INVERT TANK OUTLET 239,80 ks, 246 - ADDITIONALLY, _REIFY THE AS REQUIRED BY BUILDING CODE. LOCATIONS, EL VA1ONS, AND TIES TOP SEPTIC TANK 241.1 -- SHOWN ON THIS PLAN--R!ESULT TANK SHOULD BE INSPECTED, MAINTAINED AND BE PUMPED OUT WHEN INV. "D" BOX INLET 239.70 r { IN FEET al+, FROM AN AC,T>�� S RVEY SLUDGE DEPTH IN THE BOTTOM EXCEEDS ONE FOURTH OF THE TOTAL INV „D„ BOX OUTLET 239.53 1 inch 20 ft. ,Nit, � � PERFORMED� ;E � _� LIQUID DEPTH. TOP OF CHAMMER 239.80 AT LEAST THREE 20" MANHOLES SHALL BE PROVIDED. AT LEAST ONE INVERT HIGH END 239.47 ` 11 OF THE MANHOLES SHALL HAVE AN ACCESS PORT ACCESSIBLE TO WITHIN _ O81C21 2 23- 6' OF FINISH GRADE. INVERT LOW END 239.47 c-8 PROP, "D* BOX BOTTOM OF CHAMBER 238.80 J _ �8 ' `, GRADE "D" BOX TO BE,MADE WATERTIGHT, CONSTRUCTION MATERIALS AND GROUNDWATER OFFSET REQUIRED 4 LOT AREA �,tl '' EXIST. VENT DIMENSIONS SHALL CONFORM TO TITLE 5 AND AASHTO HS 10 * (3 p "� GROUNDWATER OFFSET UTILIZED 3' A, GRADE REQUIREMENTS AND PLACED ON A STABLE MECHANICALLY CFL tlt COMPACTED LEVEL BASE. *3' G.W. SEPARATION REQUESTED PER 310 CMR 15.405 1 h ,�� �, �. 54 004 � S . F . � 242 -- R { ){ )- "D" BOX OUTLETS SHALL BE INSTALLED LEVEL {"BUILT UP" INVERTS, S.B./D.N j , $ 1 2 4 t A C R E S t�1 E DESIGN CRITERIA _ R NOT PERMITTED.SA GARBAGE GRINDERS - NOT PERMITTED 5A tlt,Fj _ FIRS 2' (MIN.) OF OUTLETS SHALL BE INSTALLED LEVEL TO EQUALIZE PERC. TESTS: PERFORMED BY JOHN D. SULLIVAN III slt, WITNESSED BY �� 0 ,� �� �} � 8 - - FLOW, � BERG. RATE {MjI} ELEVATION DEPT'HAGEN DATE S00 1!_. APPLICANT (OVVNE CONTACT: THE MINIMUM INSIDE DIMENSIONS OF THE "D" BOX TO BE 12" AN / f �Q 3l I I ti o 7A ,tlt, " � S.T. THE MINIMUM WALL THICKNESS TO BE 2". t tlt, PERC 1 30 MPI 240.5 8011 09 09 14 Op - MOHAMMAD YAMIN Ili - INFILTRATORS T _ tIt - WHEN INLET PIPE SLOPE EXCEEDS 8%-PVC INLET TEE REQUIRED. 674 TURNPIKE STREET j 1t, NORTH ANDOVER, MA CUT LOW END 1" ABOVE OUTLET INVERT. CO - D-BOX SIEVE ANALYSIS PERFORMED BY U-MASS SOIL LAB 1 RF o PHONE NUMBER: (978) 821-0233 s 238 c "D" BOX COVER TO BE SEALED WITH BITUMEN. Al- St�S 8A EMAIL: KOUROSHAZOYAH00.COM - e � I CERTIFY xAr THE LEACH AREA tlt, f ' ALL LOAM, LARGE BOULDERS OR FOREIGN MATERIAL ENCOUNTERED DURING C-S ^j WETLAND FI AG LOCATIONS EXCAVATION ARE TO BE REMOVED FROM THE LEACHING AREA. �°j �� $ SHOWN HEKON IS THE. ACTUAL L-CATION OF THE f _ ` CQNSERVATIQN CQIMIMISSIQN NOTES' p p � ALL SOIL INTERFACES SHALL BE SCARIFIED PRIOR TO THE PLACEMENT OF EXISTING Ef E OF WETLANDS LOADING RATE. 0.33 GPD f SQ.FT. ,all, STONE. ' �}} ` ,1I1 AS DETER} ED BY SETH L. tlt, E.S.H.W.T 1) EROSION GONROL STRAW WATTLES SHALL BE LAJOIE AND ASSOCIATES, ALL STONE IN PLACE SHALL BE DURABLE, FREE FROM IRON, FINES AND COOP 1It INSTALLED AND INSPECTED BY THE N.A.C.C. PRIOR tlt, DUST AND DOUBLE WASHED. FLOWS: 3 BEDROOMS AT 110 GPD 330 GPD I `�6 - TO ANY WORK ON THE SITE. �� Or 1/ (330 GPD MIN.) __ i C_4 WHEN GRAVEL F!�L IS REQUIRED, ALL'LOAM AND ORGANIC MATERIAL tlt. 2) THE EROSION CONTROL BARRIER SHALL BE �� � �^p e ` SIt. _ / BRG'E �� SHALL BE REMviD FROM AREA TO BE FILLED, FILL SHALL BE SEPTIC`+ "CANT{ REQUIRED: 15C30 GAL. MIN. - � , c��� INSPECTED AND MAINTAINED THROUGHOUT ,tlt, oe' �„ l f s ,• CESS- L a E. COMPACTED TO MINIMIZE SETTLEMENT AND SHALL BE CLEAN GRANULAR t{!, CONSTRUCTION AND UNTIL THE SITE STABILIZATION 2,34 - o MATERIAL, FREE FROM FINES AND ORGANIC MATERIALS, AND SHALL BE IN 330 GPD X 2.0 ?E30 GAL. TANK 0-, - OCCURS, �, WILS JR. 1e alt, No. 36870 ACCORDANCE WIITIH 310 CMR 15.255(3). 3) NO DE-WATERING IS EXPECTED. IF DE-WATERING IS ,tit, LEACHING AREA PROVIDED' 30 REQUIRED, THE PUMP DISCHARGE SHALL BE �� �'��STERF4 ��'� ALL DISTURBED AREAS ARE TO BE LOANED, SEEDED AND MAINTAINED TO f ee APPROVED BY THE DESIGNER AND THE N.A.C.C. �YlL S> PREVENT EROSION. A. BASIS MIN.fIN. PERCOLATION RATE BEFORE THE ACTIVITY BEGINS. tli, G- . L � B. TOTAL LINEAR FEET OF INFILTRATOR 1_A lt, 4} ALL DISTURBED AREAS SHALL BE LOANED AND 11f }; AREAS ABOVE THE SOIL ABSORPTION SYSTEM SHALL REMAIN PERVIOUS j\ 1 UNLESS UNAVOIDABLE. IN SUCH CASES THE SYSTEM SHALL BE VENTED_ CHAMBERS PROVIDED= 212 LINEAR FEET S 2 SEEDED IMMEDIATELY UPON COMPLETION OF THE \01, a ` l f W �� { \ ©'c, WORK. I C. 212 L.F. OF INFILTRATOR CHAMBERS GENERAL NOTES ��© ee tit. BRUCE E. WILSON, JR. P.L.S, #36870 @ 4.72 S.F. L.F. = 1000 S.F- Sl. � ,tlt. SYSTEM IS DESIGNED TO ACCOMMODATE SANITARY SEWAGE ASSOCIATED f A���`l' � �` 14A WITH NORMAL DOMESTIC USE AND CONSISTING OF WATER CARRIED D. TOTAL G.P.D. PROVIDED 330 PUTRESIBLE WASTE ONLY. E. TOTAL S.F. PROVIDED 1000 230 - P._1 ALL COMPONENTS OF THE SEWAGE DISPOSAL SYSTEM SHALL BE COVERED T.B.M. M.N. IN PAVEMENT >{� tlt, BY A MAXIMUM OF 36" OF CLEAN BACKFILL MATERIAL, FREE OF STONES SYSTEM IN FILL �{ REQUIRED O NOT REQUIRED ELEVA TION 242.83' f m-t = 1;RA� A � 1 Ill °� AND BOULDERS GREATER THAN 6" IN SIZE. IF ANY PORTION OF THE PROPOSED LEACHING AREA I LOCATED ABOVE 41% - SS z a�- _ f �� EXISTING GRADE 4R WITHIN TOPSOIL, SUBSOIL, PEAT OR OTHER i a- J g•� UNSUITABLE OR IMPERVIOUS SOIL LAYER, THEN THE PLACEMENT OF FILL L ' 1' _ p S OWNER SHALL VERIFY EFFECTIVE ZONING REGULATIONS PRIOR TOV ' GtY 4�' CONSTRUCTION. " IS REQUIRED. PRIOR TO THE PLACEMENT OF FILL, ALL UNSUITABLE E \ tl1, Ili fSIGN CRITERIA PROPOSED IN ACCORDANCE WITH THE IMPERMEABLE SOILS SHALL BE EXCAVATED TO A MINIMUM OF FIVE FEET II7r C_1 r sr LATERALLY IN ALL DIRECTIONS BEYOND THE OUTER PERIMETER OF THE /Q "t7JRTBAG FOR tIt = a`4 r? fig PLAN SHOWS ONLY THOSE FEATURES THAT WERE VISUALLY APPARENT ON SOIL ABSORPTION SYSTEM TO THE DEPTH OF NATURALLY OCCURRING DE-WATERING Ill. DATE OF TOPOGRAPHY, AND THE ABSENCE OF SUBSURFACE STRUCTURES, r LQQA UPGRADE APPROVAL: s• PERVIOUS MATERIAL. FILL MATERIAL SHALL BE SELECT, ON-SITE OR (SEE DETAIL) P6A tlif`1 tt, t UTILITIES, ETC, IS NOT INTENDED OR IMPLIED, IMPORTED SOIL, CONSISTING OF CLEAN GRANULAR SAND, FREE FROM A Q� r _ r ORGANIC MATTER AND OTHER DELETERIOUS SUBSTANCES. MIXTURES 314 CMR 15.445(1)(a) HAS BEEN UTILIZED TO ALLOW FOR THE r \arc \ a is ALL PIPING SHALL BE LAID TRUE TO LINE, GRADE AND INSTALLED IN AND LAYERS OF DIFFERENT SOIL CLASSES SHALL NOT BE USED. THE INSTALLATION OF A SYSTEM LESS THAN 10-FEET TO A PROPERTY LINE. 6 FILL SHALL NOT CONTAIN ANY MATERIAL LARGER THAN 2 INCHES. A AN OFFSET DISTANCE OF 6' IS REQUESTED FROM THE PROPOSED SYSTEM ° g. ACCORDANCE WITH MANUFACTURER'S REGONMENDATIONS. Sa 3 ti �_2 Q 17A TO THE RIGHT-OF-WAY FOR TURNPIKE STREET. g°4 g SIEVE ANALYSIS USING A 4 SIEVE, SHALL BE PERFORMED ON A THERE ARE NO EXISTING WELLS WITHIN 100 OF THE PROPOSED REPRESENTATIVE SAMPLE OF THE FILL. UP TO 45% BY WEIGHT OF THE r r FILL SAMPLE MAY BE RETAINED IN THE #4 SIEVE. SIEVE ANALYSES \ o� SEWAGE DISPOSAL SYSTEM. { _OF THE SEPTIC TANK.} SMALL ALSO BE PERFORMED 4N THE FRACTION OF FILL SAMPLE a O� r' PR©PfaSED U� �• � 310 GMR 15.405(1)(h) HAS BEEN UTILIZED TO ALLOW FOR A 3-FOOT TOE THERE ARE NO EXISTING SEWAGE DISPOSAL SYSTEMS WITHIN ' TB.M. R.R. SPIKE IN U.P. q q T e ! tQ /� 100 OF PASSING THE #4 SIEVE. SUCH ANALYSES MUST DEMONSTRATE THAT �' �C � STOCKPILE �% f GROUNDWATER SEPARATION. ELEVATION 241.95, it ASS AREA a►�0 � _r-- - THE EXISTING WELL. THE MATERIAL MEETS EACH OF THE FOLLOWING SPECIFICATIONS: z `f 310 CMR 15.405{1}(i) HAS BEEN UTILIZED TO ALLOW FOR A SIEVE w % THAT MUST / D ALL KNOWN WELLS WITHIN 200' OF THE PROPOSED PRIMARY AND ANALYSIS IN LIEU OF A STANDARD TITLE 5 PERCOLATION TEST. SIEVE SIZE EFFECTIVE PARTICLE SIZE PASS SIEVE F EXPANSION LEACH AREAS ARE SHOWN. sQ � � � # 4 4.75 MM 100% � A THE DESIGN ENGINEER SMALL BE NOTIFIED PROMPTLY OF ANY PLAN # 50 0.30 MM 10%-100% H DEFICIENCIES FOUND DUE TO UNFORESEEN SUBSURFACE CONDITIONS OR #100 0.15 MM 0%-20% J ® ADDITIONAL NOTES: 105.87' OTHER REASONS THAT MIGHT AFFECT THE FUNCTION OF THIS DESIGNED #200 0.075 MM 4%-5% �} 2p � >�' SEWAGE DISPOSAL SYSTEM DESIGNED AND DRAFTED BY SETH L, LAJOIE, w SYSTEM. \ � f DEVIATIONS IN DESIGN OR CONSTRUCTION FROM THIS PLAN OR ANY OF OBSERVATit ION TEST TdOLE DATA f t ANY PORTION OF THE EXISTING SEWAGE DISPOSAL SYSTEM ENCOUNTERED M THE CONDITIONS RELATING TO THE USE OR MAINTENANCE OF THE a'STRAW WAME PERFORMED BY: JOHN D. SULLIVAN, II1, ULLIVAN ENGINEERING j .�`. j DURING CONSTRUCTION SHALL BE PUMPED OUT, REMOVED, AND THE o T PROPOSED SYSTEM SHALL BE DEEMED TO VOID ANY CERTIFICATION OR uPLaND {PLACE IN 2`-3' ff EXGAVATIQN SHALL BE BACKFILLED WITH GLEAN SAND. m WETLAND PROTECTION ACT (C131 S40) "� REPRESENTATION MADE RELATIVE TO THIS SUBSURFACE SEWAGE DISPOSAL PRIOR TO INITIATING ANY ALTERATIONS (REMOVAL OF VEGETATION, DEEP TRENCH) WITNESSED BY: ISSAC ROWE, AG T 09f09f14 \ _ \\ THE EXISTING S.D.S. SHALL BE ABANDONED PURSUANT TO TITLE 5. 2c oo SYSTEM• EXCAVATIONS, GRADING, ETC.) WITHIN 100' OF WETLANDS (PONDS, T.P.-1 ELEV. 240.5 BROOKS, SWAMPS, ETC.) OR WITHIN 200' OF AN AREA SUBJECT TO THE I TURNPIKE STREET CONTRACTOR SHALL NOTIFY "DIG SAFE" PRIOR TO ANY EXCAVATION. ��i-• f THE CONTRACTOR SHALL VERIFY THE LOCATION AND ELEVATION OF THE RIVER'S ACT (PERENNIALLY FLOWING RIVER, BROOK OR STREAM) A " � SEWER PIPE EXITING THE BUILDING PRIOR TO CONSTRUCTION. 1-888-DIG-SAFE (344-7233) REQUEST FOR DETERMINATION OF APPLICABILITY OR A NOTICE OF INTENT t0 LE V 0"-43" FELL l / FULL LOTBOUNDARY UNDER THE WETLANDS PROTECTION ACT (310 CMR 10.00) SHOULD BE / J 43"-48'" Ap FINE SANDY L0A l0 j THE WATER LINE SHOWN HEREON IS APPROXIMATE LOCATION ONLY. PRIOR TO ANY CONSTRUCTION A' O 18 SET WITHIN FILED WITH THE TQWN'S CONSERVATION COMMISSION. LOGALE3YCAWS 48"-60" Bw LOAMY SAND ?�� T ScaLE 1'=Too' 50-75' OF THE PROPOSED SEW �SPA SYSTEhA. MAY ALSO APPLY. PROTECTED AREA 60"-120" C LOAMY SAND _ } ALL SEPTIC SYSTEMS WITHIN 150 FEET OF THE PROPOSED SEPTIC ARE , F `f ICJ \ SHOWN. e � - Vr MOTTLING OBSERVED @ 56" (ELEV. = 235.80) i� +�' 7 GROUNDWATER OBSERVED 0 92" x - Zp '� i AREA IS NOT TRIBUTARY TO A DRINKING WATER SUPPLY. j 1 ,I`T� { STAGES , E.s.H.W.T. 56"' � > - ; - SEWAGE DISPOSAL SYSTEM F1 LOCUS MAP: NO REFUSAL G. j NO PUBLIC DRINKING WATER SUPPLY WELLS EXIST ON SITE. uar rr7 i USN QFS ' --- J74 TURNPIKE STREET ELAN L_E. rG FOR: LOT STREET T.P.-2 ELEV. 240.8 TB.M.-MN- IN-PAVEMENT �'� PROJECT DOES NOT FALL WITHIN A FLOOD HAZARD AREA I ° SETH L. rs� R'S MAP PARCEL 2� 0(STkJR@ED SURFACE .�+¢ LAJOIE FORTH ANDOVER, MASSACHUSETTS ELEVA 71QN = 239.8�`� _ l a'STRAW WATTLE 0"-42" FILL No. 1244 D TOWN. � ALL PIPING SHALL BE SCH. 40 i 2'x 2"WOOD (PLACE IN 2"-J q DESIGNED FOR STAKES(4'MAX. DEEP TRENCH) 42 -46' Ap FINE SANDY LOAM CENTER TO CENTER 46 -56" Bw LOAMY SANDS THE BUILDING SEWER SHALL BE LAID ON A COMPACT AND FIRM BASE, IN SPACING) - 4 t �- 46"-120" C LOAMY SAND 57A1VDARD Ql1/I✓'K 4 >1VFIL TRA LOR CHAMBER ^ A CONTINUOUS GRADE, AND IN A STRAIGHT LINE. �hrorS ny 0 OtvAL ~€' IY�dd HA A E A PROTECTED AREA •SERE(-�, �' Fi4, 1 +£ , _ \ MOTTLING OBSERVED C 6fl" (ELEV. 235.80) T SCALE WETLANDS ORIGINALLY DELINEATED BY JOHN SULLIVAN OF SULLIVAN ���`� SCALE: 1 = 20' JANVARY, 2023 LEGEND ENGINEERING. THE WETLAND LINE WAS INSPECTED BY SETH L. LAJOIE IN SITE I f II GROUNDWATER OBSERVED 0 98" APRIL OF 2023 AND WAS VERIFIED VIA SITE INSPECTION BY THE TOWN OF 7 II 8 23 U E.S.H.W.T. = 60" --300--EXISTING CONTOUR i 1 5' NORTH ANDOVER'S CONSERVATION AGENT IN MAY OF 2023. ��gq } i' S E T H L L A xJ O I E & A S S O C I A T E S, I N C {�a-•--IN.I I NO REFUSAL 300 PROPOSED CONTOUR cFF ; IXI,PERCOLATION TEST HOLE IN THE EVENT THAT INFILTRATOR SYSTEM FAILS, THE MOST APPROPRIATE `�rsty '1 REVISIONS F ^r ROA0 i REGISTERED SANITARIANS, TOPOGRAPHIC SURVEYS . I; THE Ell I I AYER (TO APF'R XIMATELY 43 ) SHALL 12" OBSERVATION TEST HOLE AREA FOR A REPLACEMENT SYSTEM IS TO "DIG UP AND REPLACE" IN THE 01/17/23 - ORIGINAL ENDORSEMENT PERCOLATION TESTING, ENVIRONMENTAL CONSULTANTS 15E SEMQvED AND THE Bw (SUDEOIL) LAYER a S SEWER LINE SAME LOCATION. 04/02/23 - COOP ADDED, WET LINE REVISED 27 BECKET STREET SALEM, MA 01970 STRAW WATTLE DETAIL °�"°7 SHALL REMAIN FOR SYSTEM CONSTRUCTION ( 7.a0` -.-- �.�s' _ W WATER LINE $r�FEr NOT TO SCALE (-� 34 THIS PROJECT DOES NOT FALL WITHIN THE WATERSHED PROTECTION 1 05/31/23 - REVISED PER CON. COM. REVIEW CELL: (774) 230-7029 I -- EDGE OF WETLANDS DISTRICT ASSOCIATED WITH LAKE COCHICHEWICK. r.zs" 08f21j23 - DEVISED PER B.O.N. REVIEW JOB NO. 1054 SHEET 1 OF 1 PLAN NO. L. 820 -