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Home My WebLink AboutMonitoring Reports 1997 ME�RRIMAC GINEERING SERVICES, INC, PROFFg9[10 AL ENGINEERS LAND SURVEYORS a PLANNERS 66 PARK 11ZkP;*ANDCPd°ER,MAa5A(-,HUSElTSOlaiiD*TE'1 (97a)475-�55EA373•57 I FeuX(97',6)475-1448 E 9J4�L:rr rJ�rt�,A�b�7rgF:c::�aa'�I August 21, 1998 re° e� a" Sul u w r po 6ryu� ° 41 Mr' 1 ,iclnucl.liowvgrd � Town of ' rth Andover �f Y Conservation Conunission Town 11all - 120 Main Street North Andover,,MA.0 1.845 E: St , & Shop-North Andover Dear Mir. Howard' Relative to the subject ct proj ct, please be advised that on this date I made an inspection of the premises, Since,the time of my previous inspection, additional stcr>rnn w a ter detention chambers were r installed on site and retaining,wall construction was proceeding towards completion. Erosion control devices along Route 114 had been r csta listied in various locations as I had directed the contractor. 'Fork was proceeding nn the building construction in,accordance w kh the: project schedule, The word was proceeding in accordance with the approved plains and Orders of Conditions. ivcrn the shwa, please do not hesitate to contact me should u have questions Or conuneurts. 4 'cry truly ours tclulnnn ', ,S. Projept rdivn r cd cc, Mr. Kathleen Cotw ell Mr. Do;lln Diicrl Mr, Arthur Marquis Marathon Construction MERRIMACK ENGINEERING SERVICES, INC. PR FEMONAL ENGINEERS i LAND SUtNFYORS PLANNE16 66 PARK STREE - ANMWER.M (,HUSETTS01810• a..m .......... ,,....... V JY Mr, Michael Howard Town of North Andover "o nsmatriorn CornrrnJsSi011 120 Main Street i North nde er, Cam, 1, � � .. m stop & Shop - North Aiidover D 'p File 4 - 7 Dear W. Howard. Please be advised that on this [irate I roade an inspection of the premises., Since the time of my pre i ins inspection, additional storm drainage construction and installation ofleaching chambers on site has occurred, Additional worm` on the buildIiun has occurred. The erosion control devices are in place and operational in all areas n site and work is proceeding in accordance ce ith the plans. please see my separate c rrrnr unieation regarding Roide 114 erosion control. It is anticipated that site work, will continue over the next several weeks in accordance with the plan. "lease contact me should you have questions or comments. a� fenny truly ours, tepine { t s R.L.S. project bor irnat r ell cc: Ms, Kath.l.een Colwell i-. Dom Dileo t, Arthur Marquis Marathon Construction MERRIMACK ENGINEERING SERVICES, I C� PROFESSIONAL ENGINEERS 6 LAND SURVEYORS PLANNERS PARX 191 IJIT ANOOVERMAS HU'SFTAI',01810•TEL(97a),475-a , 7-3-w5121 ■ FAY.(9' 8)4,J&1A48 - E-MAIL;ib'rGUOTOP a ve rt a" r. Michael Howard Tows of'North Andover Conservation CornrrliSgi011 27 Charles Street RR top, fir, Shop, North Andover DEP1 File #242-875 Tear MW. Howard I Enclosed is the WP1 ple nting report with one (I) set ofpictures, 1 " Please contact me should you have questions or cornments. Very trul ours, MERRIani , EE G SERVICES P ,' 4 ed Enclosure M Mr. Kathleen Colwell Mr. Arthur Marquis Marathon Construction. �fr=TLAN1-) :„ 4 'r - a µ; ' Oetobcr 16, l9J Mr. Steve Stapinski Merrimack Engineering Services„Iune, 6,6 Park Street lie: Mitrppatio n I'Larrntirngs; Stop & Shop NortlnAndrnver, 'M DFP Idle #242-875 Deaa Mr. talninski, Wetlands Preservation,Inc. (WPI) recently inspected the erosion eonntrunlls and rrniti atio n plantings associated with the above-referenced prrojie t. The buffer one restoration area is currently vegetated with pitch pine:(Pi nu s vr°obu--)„ arborvitae (Thgja (Vibur'nui n u•1euutatrrrrr) and real osier dogwood Cor°rrus sericea (Figure 1). The reed osier dogwood, ru rnatif shruab, was substituutr-ell for the burning bush(D,.i uuy)rrovs alatrr,$) proposed on the landscape plan (Figure 2). In additio , :several of the arborvitae Drop used for the buffer zone restotationr were not planted due to ncocssary regrading,oil tine sonrth sidle of the building up gradient of wetland flags DM T'he saturated soil ernnnnliti rns in the area do not allow for the regrading to be completed at this tinic. WWI has beern retained to monitor the eorrnpwletion of the bufferzone:planting followvinn, re,grading. All exposed srril.s in the area have been sown with the Conservation seed mix. and/,or redtopn A roslis r lba and,sww„iteingraass (Panicio r virgirtrr n), WPI observed no evidenc,e of erosion of topsoil fbilowiung the,recent storm events. 'File Plantings s for the rmiti atiunnn of bank uunpaet's are complete. The areas were:plaunted with. pnfutzer juniper Jivlg;,erus chj?jj�,osjs wf4terrerna")„and all exposed soils were s,ov nn with a'rryix ofredt pn and switch,grass (Figure 3). All silt fence and bay bate lines adjacent to wetland resource,arenas on the :site and,along 't'uurnpike Street are intact and fuunctioinaL `]'here was no evidence of any sedimentation into adjacent resource areas. All side slopes along Turnpike Street have,been.stabilized with stone of exposed soils (Figurn`e 4), No turbid water,was observed dlischat irn. ,from t:he site into Mosquito Brook at the tiiurre of the inspection, _.. m...... �.w—. 475 Ipswich rioln Road iilw I, rn wrrpi pin r r r7rnr .r net 4 Newton Roc d H,aisrtrar•rl AMA Oil 9;21 Fax ( ) '2-349�2' (403 3 5 � 1978 -52-79 Mr. Steve Stapinski Oc,tobcr 16, 1999 Page m surnmary, erosion nttolm �u are b tioinRas intended to oomkn sediment and filter=mom E f 2 disc&rging into adjacent2,�,n 7 UE Ilie RtO,� pare mpde exoept for the planting of 8cvtralarbJWBc on the south side of the building, The regrading as mrntioned above, will be,cornpletedconditions allow and planted G the remain ng avborvitae. Inaddition all d isturbed soils B be sown with the. Conservation sued m@. Enclosed rl case find 1w0 ) sets of site, mpM; eqe for yoxi and the other for the moth Andover am meal Comm|sSn. 11lca.se contactmoF'h u have any7 es . Cordially, R �2 re - . As d W&t1and ai=fi t OCA.b #2020A Ejjc 2a M f IMACK ENGINEERING SE nC S INC, PROFESSIONAL EI I[�'EER LAND S�.�RVE°�C PLANNERS xy Y� ' 9tI ELI' » wCdf �E .had sa �10,VSkTl 11 �1 G I.t � d 3Sr -. �3 S • FAX(?78)47: N446* C�V �Iwmavr�cr ;to j Ira n Town of North Andover BY FAX & MALL C'ommunity Development and Planning,011ice Charles Street. North Andover, MA 01845 RE. Super Stop & Shop Route 114 - Turnpike 'Street. Dear Members: Relative to the suubJect project the improvernents have substantially ntiall completed in accordance with the apPr ved plans,, With the exception f the oV4owinng it arms, as outlined in "Attachment ,"', which is a punch list which indicates remaining work iteins to be Bone immediately. Given that the status of'tlne project is substantially completed, with work countiunuimu on lannc,oapi n ;, fencepainting', installation of chain link fence along [lie perimeter, an mnniscellaneo'uus 0.11-Site finish work for quality control, we hereby request that the Board act to, facilitate issuance of a Building ccuWu a nc Pcu-unruit prior to the upcoming Grand Opening on October 19198. Please feel free: to contact rune should you have any, questions or co nnunnents. In the rune mntinnt,„ we will remain focused on the punch list until all items,thereon have been cornpleterl. Very truly yours, ^1t„l�l��wr AC l?A'l�d r ll-E.1Uh�TG S�, : Robert C_ Daley, PE. Civil .Eungiuneer ed Enclosure cee NM-., Dom Dilcrr MW Arthur Marquis Mr. Thomas L uucf ani l'vlir. Derunm belly Marathon Construction PROJECT: Super Stop & Sliop Route 114, North tAndover SL BJE T: Engineer's VuncW' List of Remaining Construction Related Details and {Comments which the Contractor Shall Address PUNCH LIST#1 - O TOBER 15, 1998 l, DRAINAGE CONCERNS NOTED DURING llLA'V`'Y RATNTALL + Puddles in area of trench drains « Runoff not getting into CB "F", runofl=`flow by the CB, to C 13 "E" TWs needs io be corrected for compiiance + Runaff to C R 18 double C;13) is 0% bypassing, going to trench drains/ needs a slight berm from end of block wall to traffic island- * Runofl:'to C;13 #J 51 on Route 114 - approximately 40% is bypassing, along berm, onto Gulf Station. + Flood storage f~aeiIiIies have at least " of water inside; supposed to dry. Either the flap valves were not installed or they were leaking. At worst, the structures are notwater-tight. at the joints, wluclt will require additional work including hydraulic cement at al joints along tlic bottom and sides of the structures. 2. GENERAL ITEMS • Need to verify that all flap valves in pipes arc functi oil i11g, Valve p"ll ehains have, been installed reportedly, need to verify installation at this time, • Fossil Ikilters heed to be installed at each CB, wkure indicated on the plan. * Coil stop valves need I" vent pipe, need to verify if'in Called at thus tune. * Drain manholes have poured concrete bottumm without formed troughs, apparently approved by Stop & Sbop to delete brick trough inverts, However, DMH 912 need s to have 1" to 2" or concrete rerrtove�l to �revein l�acicup- • brickwnrk at east imn frames needs some niortar work D H 17, and 03 # • C:B's along Route 114 teed to replace PVC hoods with east iroii hoods- • B ick ork, inside DMH ##131 should be finished with mortar where pipe penetration 12" RCP was inad�-, + Wood fence along fl•ontagc on Route 114 nee& to be fainted- • Chain link fencing around perimeter needs to be inst€llcd. MCRR.,MA(,K NGINLEMINC;Stif VIC S. I SG. 66 PARV STWI-1 • N'4D WR, MAiSAC!INSETM 01810 MERRIMACK ENGINEERING SERVICES, INC. PR FE V0NAL ENGINEERS 6 LA SURVEYORS • KANNMS 7 IPA,nXSTREET ,ANDOVE,R,MASSA HIn1SE1T i)810 w TF1.(978),4;7'5 KFVo.17;n-5721 FAX(1978)47&1448 E:. IT;rm em4iig@aoI,cm September 3, 199 I � Mr, Michael Howard Town of North Andover r 1 Conservation Commission 120 Main Street North AMover, MA 01845, RE: Stop & Shop -North-Andover lover ➢ EP Dale 24 -87 Relative Howard- Relative to the subject project., please be advised that on this date I made an inspection. ofth;e premises. Since the tir ne of niy previous inspection, soil stockpile removal o'p rnutiun ns have proceeded on site and retaining, all construction ctionn on the south portion of the site has proceeded,, The site. is being brought to suuln ra e, 'The erosion control is in place and operational on, site and along Route '1 K, Given,the above, please,dio not hesitate to conntact.Tire should you have questions of wmnmennts; Very truly yours, W, AC FENGINEE RING SERVICES Step l is � ski, .L. . e fro t �. � r cd ee. Ms. Kathleen Colwell Do1ii bile Mr. : huur Marquis Marathon Construction I MERRIMACK ENGINEERING SERVICES, ING PROFESSIONAL ENGINEERS 10' LAND SURVEYORS 6 PLANNERS, PAFRK 11K[CT M A C'w"CIR,MA$SAC,[Bt6FTFS,01810 a TFL T; Ia�F �s s, a7 ',h W( 8)475-1 +'[.,MAUL imiOVVaRg,'�.kmcACOMf burly 23, '19,98 " y Mr. Michael Howard Town of North , rndco er Conservation Cointrussion 120 Main Street North Andover, M.A 018451 , Stop Shop - North .Andover DEP File#242-875, Dear Mr, Howard. Relative to the subject project, finesse be advised that on this (hate b made, an inspection of the premises,., Since the time of my previous, irnslnectirnnn, sdditieun :l work has proceeded with the installation of detention and flcold storage chambers in the front or easterly ponion of the site- The ditch slung,the southerly property line near the ter s club was back filled with soil or crushed stone, per my direction to the contractor and fanrtluer, lie has left a earth berm between the area of site construction and the ditch, so that no siltation or erosion into the wetlands can occur in this area. The system which lie has in place is as supplement to, the lnrnylnal`les and sift feunce, aSSUTITIg no i,rntrusicnnn of soil runoff into the wetland area. s the site is very dry, dust tterrn the site construction operation is blowing into that well and area and s such,,, have instructed the contractor not to hand clean any of that area uunnti.l s later point in tinnne hen the site is u uure stabilized. Arhaa sun natural forces may rid this area of the wind blown silt, Work is proceeding on time site with storm drainage system, construction, including piping, eaate:ln basin and urn ,rnlnle construction and it is estimated the collection s ysternn will Nye substantially ernrnnpleted within the next several, weeks.. Construction layout work has proceeded along Route 1 l 4 and the contractor is considering perforniing that construction work during night time hours,, 11e has recently received approval fr-yarn the.Massachusetts Highway Department to perfibrin the work at that,time. The fled storage area will be complete in the meat few days. Mr- Michael Howard July 23, 1998 Page 2 { x The bui[ding is proceeding according to schedule with inasomy about 8011/o comp fete on the south side of the building, and rapidly moving to compJction oil the north side of the building- The WiRaw "Street or west side masonry has been completed and work is proceeding with mechanical system installation witWn and on the building, C;arpen" and roofing is proceeding according to the established schedule and it appears that at this time, the site will be entirely stabilized and completed along with the building in October of this year. Given the above, please do not hesitate to contact me should you have questions or comanents. Very truly yours, { ME1111 ; JEULL#FV V �}Lil V 1LTi�7ISte+ph , 4 D S Project o cd cc: Ms. Katlilcen Colwell Marathon Construction Mr, Dom Dileo r- Arthur Marquis t MERPIMAC:K E G$NECRING SERVIC-S,NC. i 66 P/VC K STR�f • AN X)VFH, MA55AC=}-M1-TTS 01810 PROFESSIONAL E RG ICI! P6 LAND SORVEYORS 0 PLANNERS PARK STREET* NFXWEPE ASW LMUS 0181G Ifl, 78)47Ew-S&5 ..371-572 I FAX(97 )4 75- 44Ra L-MAIIL rnerforig@uol,=rt j .....,,.,.- o , rl[r, Michael Howard rd Town of North Andover r Conservation Commission 120 Main Street North Arnd ver, MA 01845 RE: Stop & S ho P - 1"ortln Andover r DEP fails#242-875. Dinar Mr. Iloww aril, Relative to the subject, please be advised that on this date I inade an inspection of the premises, Since the time of my previous inspection additional block masonry construction has proceeded on,the building so that it is 99% complete:and work has begun on brick masonry and i continuing on, interior plumbing and, improvements. The wet tap,for the water, cyst rnn has been installed and work on the w t rrnnaitn is proceeding sup that the tr .unccln on Willow Street will Inc patched within the next week, , ddit'i rr l work was proceeding with the storm drainage detention facilities, and installation of the storm drainage system. It is rrrnti ipated that the infiltration syst inn will be installed next wreck and the contractor will r vid to us 48 hours notice prior to infiltration soil Percolation testing,, per the Order r of Conditions. I will report to, you the results of that infiltration trench testing after it is complete. Please advi se inn if y urn wish to be on site at the time of our testing, Work was continuing on survey layout on Route 114 in preparation of construction next week, Erosion control devices are in place and operatioru l in that area, The first Vortechnics Chamber has been installed on the site and the second one is scheduled for installation in approximately l O to 14 days- 'work was proceeding on the storm water r detention systein. The erosion co ntroll on site was in place and operational. f advis d, the contractor tiosweep Willow Street and to re-establish the crushed sta ne filter berrnn for the stabilized construction entrances, He indicated he Would proceed with that work irnnnn edl t ly- fir. Michael llawaM July 30, 1998 Page Given the above, please Rio not hesitate to contact me should yoti have questions or comments_ Very truly pours, MEttRIIviA E€�ICr SERVICES Stephen E. S project o i at r ed 4 f1c; Ms. Kathleen Colwell, North Andover Plamu ng Mr. Richic Roggeveen, Marathon Construction r. Dorn Diieo, Stop & Shop Mr_ Ardiur Marquis, Stop & Shop MIJ&IMACK ENGINEEPIW:,SFfMCES,NC.. - M PARK SFRLET i AMA-)VU?. MASSACHkjlm IS 01alG MERRIMACK ENGINEERING SERVICES, INC. PROFESSIONAL ENGINEERS LAND SURVEYORS PLANNERS 156 r PARK STRFH • NDVEmm'. Asir'aHuSETTs01mmlO 7rL(978)a75-��55s. 73-t�72Ti FA�wc((89)4715-1448.li.Wt menerw02'a ,00M tki IN r ,m I Mr, Michael Howard Town rn of Noilh Alidover Conservation Commission School Street ot1h Aridover, MA 011 45 RE Stop & Shop Hear Mr., Howard.- Relative to thesubilect project, please he advised that on this date I made an inspection oftine p re.rnises. i Spice the t.h ne of my previous inspection, work has proceeded with the installation of the wwraterrrrairn on Willow Street, some masonry in the rear of the building as well as steel erection on the building itself. Steel erection:is centinurin ,corn the building. Site crunstrnaction is proceeding with installation of flood hannnb rs, Icachirng basins and as suchl soil is being stockpiled in designated areas on the site. The erosion control devices are in place and operational on the site and silt behind the ha bales on the south side of the property has been removed, A small punter or trench has been construction along the security f once which is in side the site from the ha bales. "hat gutter is probibiting site runnoirf"roinn entering the wetland areas. GZA Environmental Consultants has been monitoring,the installation of the leaching pigs and the flood plain storage chambers relative to pliac rnnent on the stabilised sr bgfade- "chat work is proceeding in accordance with the project specifications, Dewaterinp operations are proceeding in accordance with plans and permits. No off-site erosion was observed on the adjacent properties., 1 have requested that the contractor continually maintain erosion control, and sediment/silt fence and that the crushed stone filter berms at the driveway entrances be re-established on the site. r, Michael Howard June 25, 1998 Page 2 'lease contact one should you have questions or comments_ Very truly yours, f J 1lELIA]Ci EttiF' L_ , I cd cc; Marathon Consfruction North Andover Building Inspector N art h Andover Planning Board z , 'r WMIMAC=K FNC-ANEESelNG 5 f UIC S. INC • 66 PARK STREET • ANfX)VFR,MASSACHIAPTS 01810 MERRIMACK ENGINEERING I' G SERVICES, INC. PROFESSIONAL ENGINEERS 0 LAND SURVEYORS 0 PLANNERS rua F'APK STREET ^ok NDOVER,�MI�,S��m.��aN TTS 0 18 1 l«lfEl 7 ),4�b-a5 , 37.3-6%11 • FAX(979)475,144 F F ��I.��srr�n�,� zs�.e,urrw p Fppp II„ G WU e July 2, 1998 Mr, Michael Howard Conservation Agent 'Town of N rth Andover 30 School Street. Stop & Shop 1 EP File 4242-8,75, Dear Mr, Howard: Relative to the subject,, please be advised that on this date I pn'uade an inspection of the pare noises. nice the time of rny previous inspection, additional steel construction has proceeded on the building. The area inside the building is being,prepared for eonnstnietiorn of floor slabs„ anticipated to be within the next two ( weeks. Work is continuing with the installation of the leaching chambers for detention in the northeast portion of the site and the area south of true building,. Soil has been stockpiled in the front area of the site, but the contractor has excavated a ditch between the catch basin which is connected to the state stonin drainage system and the flood storage area., providing more than adequate flood storage should there be a I 0,0 .year storm. Flood storage chambers are being installed in the frodnt of the site, We have been carefully monitoring this operation to assure that there is no dons of flood storage in the project area during construction,. Attention was called to the fact that additional crushed stone filter berms are required to be built at two of the other entrances leading into the site, Cairns, indicated they would perform that work in the next day. They were also advised to sweep Willow Street and provide the temporary patch over the water service on Willow Street. They were again reminded to, extend dewatering loose from the south side of the building to the dewatering pit. when dewatering operations take place on the west side of the building.. My next site inspection will be July 8, 1998 rather than July 9, 1998, in accordance with the i revised weekly project meeting date.. Mr. Michael Howard July 2, 1998 Page Please contact me sliould you have questions or wmm ts- Very t iy yours, G �G SERVICES Stephcj to i , --L.S. Prod Coor 'natter Cd CC' Marathon Construction Mr- Dom Dileo fir, Arthur Marquis North Andover Planning Board a d MEPRIMAa C-C ENGINEER3NC SFPVICf;,IM. . 66 PAf�K STREET • ANCR-VETS. MA;SACHUSfTT5 0{810 MERRIMACK ENGINEERING SERVICES, INC. PROFESSIONAL E,Nlr��INFIE , 0 LAND SURVEYORS PLANNERS 66 PARK SIRE:ET Afi DOVERMAS'''SACHUSEa1°01910, Itt(WB)475 35M5 3)3 6J2xlti�^F �Ja��4F�11�141� F MATI mepreng@,:u tcom, June 11„ 19,98 v Mr', Aficha l Howard Town ofNortlu Andover Conservation commission North ndov ry 01845 RE Stop & Shop, -North Andover -DFP File#242-117,. Dear Mi-, Howai , Relative to, the uljet Project, plea anni iced thant on this date t made and hasp eclion, ofthe prernisc& The 11c o,d storage area on the north side of this building had been installed and ocimpleted, although it is, roant connected by pipingto the storm system along Route 114. This flood storage area in the front ofthe building, a djac out to ROW ROWC 114 was under construction. The storm water detention hammer were our site and ready for installation. The building,was b rou bt to, slab l action, ready to receive concrete, and filling activity on (loin site to bring this site to a general subgrade was co npnl t d,. Additional 1111iau ,is still. necessary to faring the Ate to gravel.grade, This erosion control was in place and operational along with other storm water r control„ on the site, Given this above,, please do not,hesitate to contact nic should you have questions or comments, Very truly yours,. 1 11 1 1, E 1�1 ,1~f�ING 1�;[��''1�,0�'S ' t1�iva p�� ' i„ 1�,L. t r d, cc,, r. Dom, Dileca r. Arthur Marquis, Marathon Construction North Andover Planning Board I If ER IMACK ENGINEERING SERVICES, [NC. PROFESSIONAL E'N I;NFEIR . r LAND SURVEYORS HIV PLANNER 66,PAWS is ui *AND ER,MA,�9aACHUSFATS 018,10 1'�1(Wa)475-35155. 373,5721 r FAX(978)47&T4 8*&MAL 1m'i44aen[j ioJ.c June 5, 1998 Mr,, ichaa l Howard t irown f North Andover ar, Conservation Commission y 30 School Street North Aaualc cr, MA 018,45 RE: Stop & Shop, Site Inspection DEP File 4 -87 Dear Mr. Hayward: Relative to the! subject, please be advis d that (in this, date I made an inspection of the premises. The erosion control was in place and operational on the entire site.. The flood plain sto,raagc area on tha north side of the building was installed, although manholes coke and pipe connections were not in place, all chambers,were in place, Work was proceeding on this installation o the flood plain replacement area adjacent to the street, in the easterly portion olf the site. The area around the building had been backfillied and was at su b raade. Plumping within the building was being completed, and the building pad itself ' s being prepared for concrete silab cons(ruct'ion, Security fencing around tluc p erim tar oi`the site was installed. Given the above, plea." do no,( hesitate to contact uine should you, have questions, or comments, Very trua cur , Ste, h .0 t pa' lei, fl..L.S. Pr j t C 0 i aator cd cc: Ms. KathIrCell Colwell Marathon Construction Stop & Shop MERRIMACK ENGINEERING SERVICES, INC PAR STPI:ET A'114C 1 f,O IA SA WGU EIS 111�1 1 M n�L al'd T �x 37 k -FAX( 78)4 1448*&MAR;moirav ad.corn, June 2, ll '""' ""'' Mr, Nfichatel Reward BY FAX MAIL Two' pan of l" orth andover I_(PLANIII ' ' � � � Conservation� Commission, 30 School Street. North Andover, MA 01845 R Stop & Shop Donate 1141 - North Andover, DEP Vile 4 --117 Dear,Mr. Howar&i Relative to the subJect project:, please flnd enclosed herewith prints:of revised site plans for the, storm winter detention facility for the subject project The contractor was nnot able to obtain from precast maaonuf cturen-i;s the:exact size of tlne Est rmwanter detention chambers called,i'cr on our original, plans, The chambers are slightly longer in one direction, and shorter in another direction, In addition, the chambers are also deeper than what:was specified on our drawings, As as result, we have prepared the revised Plans which show more chambers than that on the original plan, except at as different size. The square footage area of the chambers being provided on the new plans is the saaaaae as on, the one originally approved. The chaar nblers are also higher„ and as such, there is nnanrevolume can the,new plan than on the plan originally approved, The elevation of the bottom of the leaching chambers is not changed between the new and c'id Plan., Please review the revised Plans, and contact erne with any comments, Please schedule this for consideration as a rniraror,modification to, the Order of Conditions at the next meeting ofthe Conservation Commission, r, I C-11ael Howard June 2, 1998 Page 2 Given the move, Please do not besitate to contact me should you have questions or cormnents, Very truly yours, MERRIffACK E i 1 Ei NG SERVICES step 0 to ;nski, R_L.S, Project Coordinator cd Enclosure CC' Mr. Thomas Laudani Worth Andover Playing Board stop & Shop { MEf?RIMA,CK ENCINEERrNG-SEpvCES INC • 66 PAW STPH-T ANDCYVER.MASW-HLr3FTM 0M10