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HomeMy WebLinkAbout20170321 Stormwater Review 1160 GREAT POND RD Perf Arts Ctr WSP SPR 3/6,0017 Town of'Northdower Mail-Re.Brno S� h l Arts Project No AN ' VE Rebecca Oldham "" ' Mitassachu �, .. .......... ....... Rem. Brooks School Arts Proi ec ...............­,...................... ............ Rebecca ldham �< l�dham@ rt, / r e a. �ov Mon,, Mar G, 2017 at 2: 2 GPM Draft Forwarded message From: Lisa Eggleston s @le, t i �ii ii'r- it ,c li ate Mon, Mar 6, 2017 at 11"15 A ,subject: RBI Brooks, School Arts Project Taw.- Rebecca Oldham l l ,,nip �o ., Yes and the: o satisfa to �rmmmwv�+er�v�^r^mor�vn,1',uw;OPv�u>Lrr�l�jg�$idr�war�i,.�/a:�"�w��iPrMnr,�iHrul�✓�inr,,,,�i flaf.Y'�i�� iw" „�rwrAnvnwA�c�X:hrH$wi'��NRbur>�/laro�l'M�lla�rtinmirNmwfhuYd". � �. The y are not sin r�� � t � i� � in the Zone A I think,the memo from hail provides reasonable assurancethat the sump pump will not be, dewatering the groundwater table Whet her it 01 is, pa,rt of this project or not, j� x im e r,ec r s where X1rl,�s:i .i....... ................., i�... / l�IVJfIMrY fil/I!�11 ,/l✓,i//�7i1%WI///JllA�n[i9'7)i/rSf,X�JIV/ rm,7//I(A/l Wl !�llY/„�./>�lii!/Y/k'IVJYrIXIMXIIiYMIY y�.,,...lflW,/„d/J6'�,'V!1.,...1J�%�r'/../Il/......rrU/,MY.J,J"1',9f+,).//.Y/%/�/ YI61lri r. e/� ,,.r r,..r.,r/��rr J �,.. „��,.rria, da. .>a ,,,w...��n,aw�.�,�✓mP�� �r1 m✓�q�d_.�r�rrr�r�ida,,,�r��.9wmm��I�,r�R�rn, i.unll ar, �uurJylriiayi�rrrr�n,� mu�wlrr,il�irn�,� Let e know l Ie anything Is this one. Usa D. Eggleston, RE. Eggleston Enviror �m nto Sudbury, MA,Oil 776 el5,08.2,59.1137 From: Rebecca Oldham l nib its l ,r . Date: Monday, March, 6, 2 t 2 AM Lisa Eggleston < 1[� st � ,,r, t �.,�co Subject: F'w : Brooks School Arts Projed Js ,. Have yo�u had a chance tio review Anthony's nimenu --Rebecca e eeca Oldham S 1 n er Planning Department Town of'Niorth Andover 12o Malin Street Nor Andover, ,,' Phone 978-688-9535 ext. 418301 a. : Emal*l,-. - it - . northandovermiagov . •k iewe i sears =i bo t '1 5 i 5a 2 7 d t 1 1ml=llSaal f u. h�ttrr� il,, 1� r� w1 � �. w r� �f� � l� 3/ 2017 Town of No�rth Andover Mail-Re:Brooks Sc Arts Project Forwarded message ------ From," Mthony Cleaves, <,aci,ea,ve,s@whit,man�bingham.com> Date: Fri, Ma,r 3, 2017 at 3:55 PM Subject: RE: Brooks School Arts Project To: Lisa Eggleston <1 ,gle,stonenvI ,tal,.cl,om> Cc: Jean Enright <Jenir,iight,@no�rthi,a,ndov,e,rinia.,go'v>, Jennifer Hughes <j�hiuglties,@niorthandove,r,t,"nia.go,v>, Rebecca Oldham < i@noirt,�iandover , "Andrew Leonard (at1@at1!eonard,.c1o,rn)" <atl@at1eonard.com> All, I have, attached the updated p�lans,with the ZoneA in relation to the wetlands, and also attached a. memo from n regards to the foundation drainage. the project geotechnIc e t "al enginer o provide more, nformati ir e �Tease let me: know i!f you have any questions, or cornments. Thanks, Anthony Ant . Cleaves, P.E. Prloj%t Engineer Whitman & Bingham Associates, LLC 5,10, Mechanic Street Leominster, MA 01453 (978)537-5296 , (978)537-14,23(Fax) W'HITMAN BING 11AM ('I' "A' I I 1i RfOISTRED 1-P4GD4(9,RS I AND SLRWYO-�S From: Lisa Eggleston [mal'lit,o@.IIi ienvironniental�,,com]� Sent:: Thursday, February 23, 2017' ,2:37 PM To: Anthony Cleaves <,ac,leave,s@,whit,m,anb�ingham.1c,lo,m> littps:/Im ail,,google.cown/mail/u,/O/``?ui=2&ik=ab4f3cb798&,view=pt&search=inbox&type=15aa4,5Of3Oe5bga8�&m,sg=15aa,4192746d7'5075&,dsqt= al'. 5a;a48f63e5. 2/8 316/2-017 Town of'North Andover Mail-Re:Brooks Sc1=1 Arts Project 0 C'C: can Enright, <egni-ig lit @,�north,ando�veri,�n, v> nnilfer Hughes, <'j"hLiglies@,riort,hi,an,dovei,-nia.gov>; Rebecca Oldham <t-oldha,ryi�@�nor't,'�ia�[idoverril,�l.,gov> Subject: Re: Brooks School Arts, Project Rebecca et al.,, Just letting you know that I have reviewed these, design revisions and thatthey satisfy most of my previous comments. The only comments I have at this time are that the Zone A delineation should include tyre asks e set from the tributary wetlands as wetlands are considered waters of't,he US. I'm, not sure that it is going to make! a difference for this property (new stormwater discharges are prohibited within Zone A), but it,should be recorded correctly on the plans,. More i rtantl ncern reg ring the proposed surn,p pump for,the, building foundation,, which mpoy I do have a coa discharges, overtand. sed, on my telephone conversation with Anthony Cleaves it, appears my,that the basement level may be below the normal groundwater elevation$ in, which case the sump pump would be operating throughout the year and; not just during, periods of high, groundwater. If this is,the case it would in essence be depleting the groundwater in the, area, instead of promoting recharge. I think further information regarding the groundwater elevation in the area is, needed. I hope this makes sense, pilease let me know if you have any,question's or want to discuss. Lisia D. Eggleston,; PE Eggleston Envi*onmental 32, Old Framingham Rd #29 Sudbury, M,A 011776 Tel (508) 259-11137 On Feb 7, 2,017, at 3:28 PM, Anthony Cleaves <acleaves@whit nb'ii°igt .clorn> wrotek. Lis,aJ iscuss your reviewitems, Attached are pillian sheets that have Thank you very muilich for firne to d* been updated based upon your comments,. Below isia response to your cornmients'. 1. Zoine A boundaries have, been added to the plans. They are shown on plan EX1.01 and C5.00; 2., The roof material is planned, to be an aluminum-zinc alloy-coated steel shelet. 'The run-off from, the portion of thie building to the bluie, stone drip edge Is tribu tary to bio-retenition areas that were installed as part of the Chapel and Connector Road Project. These a,reas will provide added a along Great Pond Road 'treatment beforle discharging to the large open grass bowl detenflon, are and the, south entrance to the camp,us,., 'The, rem aining portion of the ro,o,-f discharges to, the xistin tor ter syst t nort e of the, project. This st mwa orter system outlets to, an eg smwaem on he h s i'd ,area between the hoc ire- and Great Pond Road which is outside of thie Watershed Protection District as, it does, not,flow towards the Lake. bga8&msg=15aa49,2746d75075&dsq�=1&siml,=15aa48f63e5,... 3/8 htt //m A il-oom 1 e.com/rni ai I/u/O/?ui=,2&,i k=ab4f3cb798&vi t&s ea ric h=i nbox&type=1 5aia.450f,30e.5 3/6/2017 T6wn of North Andover Mail-Re:Brooks SchO01 Arts Pr ject 3. There is a 12-inch roof drain from the proposed addition that connects to, the stormwater system wilthin the new court yard area southeast of the Danforth Center., This area will, also have Nyew F yard drains with 8-inch outlet to this, System. This stormwAter system is as mentlionedabove as, dil scharging near Great one Road and the Hockey,Arena. 4. There is, a trench drain located at the bottom of a new set ofstaj�rs from the new courtyard', closest to the W'ilder Dining harll. This is intendied to pick up the small amount of water of the walkway,that may get trapped atthe bottom of the stairs., A,cross-section ofthe trench drain is shown on sheet C3.00, 5. A sump, pump, is, being provided' in the basement in the, event of hi'g,:,h groundwater occurrences, to, ensure that the basem ent Is not flooded. The d"scharge of the sump pum p is to the, ground' surface on the south of the building, When operating, t Nis water would travel by overland flow to existing bilo-retention cells installed as part of previous projects,, then to the large, oplen grass bowl which istributary to theLake., 6. The subldrain has been disconnected from the outlet plipe and 'is, designated as an e,xfiltrafion drain to facilitate, surface water to the subsoll. A,standpipe has been added to the �outle�t pipe to' allow for an overflow of water builld up from larger storm events. Sheet 02-00 has the updated' info 17. A bio retention detail has been added and is, on sheet L8.2. 8. Expected re-grading of the existing soccer field has, been added to, sheet C5.00, The! actual extents may vary pending upon the amount of excess fill n t ror i the Art Projilect but, is niot expected to go beyond what has been shown. Anthony K Cleaves, P.E. Project Engineer Whitman & Bingham Associates, LLC, 510 Mechanic Street Leominster, MA 01,453 (978) 5,37-5296 (978) 537-1423 (Fax) WHITMAN IIINGHAM (1 4 Rif(313TIPtO &IAND 51AYUK4115 From,: ,is Eggleston [ima,ilit ,-.1l'isa@egigiles,toine�nv,iir,oni� intal,.c,om'I Sent-, 'Tuesday,, February 07', 20,117 9:0111 AM To, - Anthony Cleaves <,a�cle�av, s@whiiitmain,bing'fiami,,lcom>; Jean Enrilght <'jenright@nort,hiiandover,rtia.gov>ii Jennifer Hughes <Jhuigh ens @nior,th,an,d rm are golv,>, Subjects., Re.: Brooks, School Arts Project, Does 2 pm your time, work.?Jean, Jen, let, me know if you want tio, particilpate. hUpsItenail.googie.com/m,�a Ni/ul0`/?ui=2&i'k=ab4,,f3 "98&vie:w=pt&seareh=inbox&,type=15aa45lOf3Oe5,b9a8&msg=l5aa492746d75075&ds(it:::l&siml,=1,9aa48f6i.lia.li--- 41A 3/6/2017 Town of North Andover Mail-Re:Brooks School Arts Project Lisa D, Eggleston,, P,E. E'ggtestion En �ronrnental 32 Old Framingham Unit #29 Sudbury, MA,10111776 Ted 508.259.1 1137' From: Anthony Cleaves <ac,leavies@,whi�ti 'lnigharii�.coril> Date: Monday,, February 6, 2017 at 3:59 PM Lisa, Eggleston <lisa@egglestonenv I ironmen'tal.comi>, Jean Enright jlenr'lght@nor�t,handloverma,.gov>, Jennifer Hughes <Jhughes@northandov& nia.1gov> Subilect. RE. Brooks SchoolArts, Project Lisa we could, speak Thank you very much �for fitting in the review,. I think"t may be easiest, I ff sometime tomorrow. Please let, me 'kn iIf you have any aviallability. Thanks,, Anthony Anthony M. Cleaves, P.E. Project Engineer Whitman & Bingham Associates, LL,C 5,10 Mechanic Street, Lelominster,, MA 01453 (978) 5,371-5296 (978) 537-1423 (Fax) WHITMAN6BINGHAM NC AND SUR� L.84 t r% Ir"-!,,ii,/,,,,/t`)/�iii=,),P-ite=nhAf-%--,h7CARviimm=nt?v,.qpqrch=i,nmx&tvw=15aa4,50,f3Oe5b9a8&msg=15aa492746d75075&dsqt=l&sim,'I=I,,,,5aa48f63e5l. 316/2017 Town,of North Andover Mall-Re-Brooks School Arts Project From-, is Eggles �alit riviir,oinrTientlal',.,c ni,,I Sent-, Monday,, February 06,_2017 101:22 AM TO: Anthony Cleaves < 'hits niaire b!lt �am.com>; Jean Enright <j�etiright,@noi*tha,iid�ove,i-nia-g�ov>m Jennifer Hughes <jhu�ghes@no,rthandoverriia.gov> Subject: Re: Brooks SchoolArty Project Anthony et at., I have received and reviewed the January 17, 2017 submittal mated at's for the above-referenced project, and have several quest io n s/com men ts I- It would be usefut if you coutd add the Zane A boundary to the plans in, adiditi"on to the Watershed Districts. Zone A is diefined by the Massachusetts Drinking Water'Regutatioris (310 CMR 22.02) as inctudmg: (a) the land area between the, surface water source an the upper,boundary of the bane (b) Ohre nd area W*thin a 400 foot, la,t,erat,distance istance from the upper boundary of the, bank of a Class, A surface waters i re , as defined in 314 CMR 4.05(3)(a), and (c) the land area within a 200 foot latest distance, from the upper boundary ofthe bank of'a tnibutary or associated surface, water body, 2. 1 note, that the, architectural playas, for the proposed arts buftclIng call for metal. roofing and! corrugated' metal ra,in guards, Muth runoff from the eastern portion the addition infittrateld directty via the bluestone drip, trenches,. Can we get more information on the type(s) of metal proposed?The issue is whether it, is a type W*th the potential to, leach copper or zinc - the M,A Stormwater Standards specificallystate that infittration of runoff from a mietal roo,f (galvanized steel or copper) that is located withi'n the Zone 11 or Interi'm Wetthead Protection Area of a pubtl1c water sul,ppty requires, pretreatment by means of a B,MP capable of removing metals, such, as a sand filter, organi'c filter, filtiedng 61oretention area or equivatent. While the Standards don't mentilon the, protection zones for a surface water supptyit is reas,onabte to assume theat the same requirements, should pertain to meta( rolofs, Wi'thin the, Town's Watershed P,rotection Distdct. It, should be possibte to enhance the driptrenches to provide the, fitten*ng necessary. I Sheet C2.010 shows an 8-in drain connection from the proposed bulitcling to, the existing torm drain In, the area to the siouth of the Danforth Center. Is, this a1so roof dra,inage and, S if so, where does that, storm drain discharge? 4. It 'is unclear to me what, the source, of flow to the two proposed trench drains in that area between the Danforth Center and the Dining Hatt "Stu d'ent, Center is. A design detail,for, the trench drains is, also needed. 5. Sheet C2.00 calls for a proposed sump pump, discharging to gra,de, at the, northeast corner of the proposed building. What lis the source, of flow to the sump, pump and is, it consistent with thu lrtent to maximize groundwater recharge on the site'? 16. Sheet.C2.00 also, show's a 6-in, sup drain outlet on the proposed bloretenfion basiri, connecting to an existing drain manhole. No inverts are gi I v�ien, but it appears likely that this connection would drain off flow that would' otherwise ble, recharged in the, basin. 7. 1 was uriabie to local e a design, detail for the bioretention basin/rain garden. Additionat detait is needed ort the proposed grading for the soccer fietd. � Please let me know if you havny,e a questions or want to discuss. I am, still working remotely arid unabile to, meet, in person, but can, be available for a,conference calt ifthat would help., Lisa D,,, Eggleston, P,E, Eggleston Environmental 1 32 Old Framingham Rd, Unit #2,9 Sudbury, MA 011776 https./,/rii ai I google.com/m,aii/ujo/?ui=2&ik=ab4Qcb798&vj ew=Pt&search=i nbox&tvt)e=15aa45Gf3Oe5b,(-).q8&m qn,;_-l.rin,PAC197ARti7!',A7.Rkticnf=1 ke i r"I-4 r,.,,A,A O(W1.JZ 3/6120117 Town of North Andover Mail-Re-Brooks,School Arts Project Te .1137 From: Anthony Cleaves <acleaves, ,whip"Itmanb�inghait°ii,,com> Data: Wed nesday,, Ja n ua ry 18, 2017 at 11-4 19 AM To: Usa, Eggleston <�ll�s,,ci@,e�,ggles��toiien�v"ii,,o,�,nn,ii .coti"i,> Subject: gooks School Arts Project Lisa If you haven't heard, yet,, Brooks, School is planning for improvements to their campus. We have just,submitted documents to the ' 'own for Planning and Conservation review and are ailing out documents to you this week. I've attached the documents that I could, the file size, is too large on the, others. Please let me know''if you, have any questions. Thanks,,, ,Anthony Anthony M. Cleaves, RE. Project Engineer Whitman & Bingham Associates, LLC 510, Mechanic Street Leominster, MA 0114,53 1(9718) 537-5296 (978) 5317-1423 (Fax) J WHITMANOBIN("'HAM, A R[O)STUIED,ENORNERS,&I-AND SO% ;;s <Brooks Arts Existnig EX.Ir 0 1 - 2-7-17 DRAFT.p&5 <Brooks its utility, C2 - 2-7-17 DRAFT.pdf> ~--A^^~vI Irv%-n;1 h dAP)i d=Ok,i L,=nhAP1r,,h7QAA%ji nuu=ntPczP-nrth=i nhnyAtvrkq.=15aa45Of3Oe,5b9a,8&rn sa=1 5a,a492746d'75075&ds(A=1,&sim 1 1 5aa48f63e5... 7/8, 3/6/20 17 Town of N or th Andov er Mall-R e:Brooks School Ar ts Proj ec t <Brooks its Erosion C51 - 2-71-17 ,DR'AFT.,pdf> <tB rooks, School - Permit Set- L8,.2 revision.pdf> All email messages,and attached aunt sent from and to thiis ernail account are publ'ic records unless.qualified as an exemption under the Massachusetts Public Reclords Law'. Visit us online:at www.northandoverma.gov. hUpsIft ai Lgoogle.com/rn aj ULYO/?ui=2&ik.=a f3cb798&view=nt&search=i'nbox&tvne=;: 4,Rn.PAQ97A,AA'7Kn7J;A tic rif=I koi m 1—IKnnA O(CZQ^r- 218/2017 Town of North Andover Mail-Fwd,Brooks School Arts Project, N K' VER Rebecca Oldham <ro,]'�dha,m@no,rthandovierma.gov>� M sullu as S ,vyv­�: "111111 M, It ............ ............. ................ ....................................... Fwd: Brooks School Arts Project 1 message ................................. ................­_­-—------------...... .............. ..........................-——------ Wed, Feb 8, 2017 at 2:,39 PM Jban Enright <J*enright@.northandoverma.g:ov�> To: Rebecca Oldham <roldharn@northandoverma.gov> FYI Forwarded message ------ From: Lisa Eggleston <�l�isa,@eggli,es,t,oneiiv'iro�niiiental�,.cot,-n,,> Date: Mon, Feb 6, 2017 at 10:22AM Subject. Re- Brooks Schooll A,rts Project Tb: Anthony Cleaves <ac,l�ea,v,es@wh"ltrnanb�*lti,,gliarTi,,com>, Jean Enright �<jeiir,igli�t@n�oilhari,dio,ve�,niiia,,.�gov>,, Jennifer Hughes <Jhughes(,Z�,northiandoverrna.gov> I Anthony et all I have received and reviewed the January 17., 21017submIttal, materi'als, for thie above-referenced p,ro)1l and have, �severa,t questions/comments: 1. It would be us,efut if you coutd add th.1l y,,-,to,,-,t,he,,-p�ll,ans,,.,.,,i,n adid"t, n to the Watershed Dist.lricts. Zone A I's defined by,the Massachusetts Dn"nking Water Regulations, (3,10,CMR 22111102) as inctuding: (a) the land area, between the surface water source, and the upper boundary ofthe bank; (b) the land area Mthin a 400,foot laterat d�lstance from the upper boundary of the blank of a Class A surface water,source, as defined 'in 314 CM,R 4.05(3)(a),- and (c), the tand area within a 200 foOt, laterat distance, from the upper boundary of the bank of a tn*butary or as,sociated surface, water bod 2. 1 note that thie architectural, p1ans for-the proposed arts building call for metal roof ing, and corrugated metat Is with, runafffrom the eastern, portion of the addition Infiltrated directly Via the bluestone drip, rain guar( le,�s) of mietat ed? T he i ssue il s w hether 1-t i s a, type with 1)/'U, ( trienches. Can we,,,g ore information on, the typ 'l. CM-F,P1WW1!:9 p"'W, 0 he MA Stormwater Standards sp 11call state t at the.p tentiat to [each c pp W"tMn the Zone 11 or Interim rij from a metat roo, ,,,,,,,p,e ) that, is, located , f lvan`zed steeL or cop r ""If"Vne"'ol........... 0" go�Vfrw U?)(OV'll "Warf'ole '0111"U'l 1, 'abtle of requi, MIN, NA'AN/o/0%,&10111�&Afl&d� 064,AM Al Area of a p u b,Li c wat e r,su pp ly ",pretreatment by means, of a, BMP cap W,e_ uivat�" 10 �iten*ng,,,,,,,b�'iloretien�tli�ona,re,a,orecI V1 If"Ar 1X/,l,/AWW, /W/ff"', C r as, a, sand fit filter *�SOLAL,1"V%, wF)AN the Standards don't mention the protection zolnes fror a surface water supply it is reasonable, to assume, that, the same requilrements sboulld pertain, �to, metat roofs Within the Town P s WatersPed Protection Distrlict., It should be posslibte -to enhance, the drip trenches to p,rovide the fittenbg neciessary. I Sheet C2.00 shows, an 8-In drain connectilon from �the propoised buildinig, to the existing 71 1 , storm, drain in thelarea, to the, south, of the Danforth Center. Is thi's also, roof drainage and, if so, where does,that storm dr�ai'n dJ,,, 4. it,is unclear to me what the source of flow, to the two p ,,o,,r,,th ......... 4, 5 11101""h_1 f,/,,,O/,rea,,,,,,,If?,,,,el,,wme,,en/,,),,,,t,hje,_-Da n,,,f is., A design detail for,the trench drailris i's aLs,o needed. 5,., Sheet C2.00 calls for,a proposed sump pump,discharg'Ing to grade at the northeast comer of the proposed building. W.,hW 4 "e mp,,and 'is, it,consistent With the intent to m1aximize .......�/h flow to the sump",p ffl�, Wpler reqh�rg,, ,gln the site? i n, 6. Sheet C2.00 also shows a 16-iri drain outlet on the proposed Noretention bas,in, connecting to an existing drl likel ,,.that this corlinectioln would drain offf low,that woluld otherwis',01 manhole. No,.Jnyqr1s,,,,,.re t app a -,_g bu� ,�q,ars the basin. garden. 7. 1 was unable to 1, got for the, bioretention basin/railn _d _,,g,tai I %kwapawffl, ocate a, (le,51 8, Additional detail is,needed on, the Please let me, know ]if you have any questions or want to discuss. I am stfl(w�orking, remotely and unabLe to meetin person, blut can be available for a conference caU if that wouid help,. Lisia D. Eggteston,, P.E. Eggleston, EnAronlm,entat 32 Old Framingham Rd�, Unit #29 Sudbury, MA 01776 Te 15 0 8, 259.1137 .. ­.— . ——.1. * 1/3 2/8/2017 Town of North Andover Mail-F'wd:Brooks School Arts Pr From-, Anthony Cleaves < � r ,an�,bin1 ham.1com> g Date: Weldnesday,January 18., 2017 at 11:19 AM To: Lisa E lest i'�sa@eggiles�t,onen,v'ironryie�nt�a,l,. m> Subject: Brooks School'Arts Project Lisa, If you hiaven't heard yet, Brooks School is planning �for improvernentsto their campus. We have just submitted do I cuments to, the Town for, Plannibg and Conservation review and are mail ing out docurrients to you this week. I've atta,ched' 'the documents that I could, the fi�lle size is too large on the others. Please let me know if you have any,questions. Thanks, Anthony Anthony K Cleaves, RE. �Proileict Engineer Whi ingham Associates,,,, LLC 510 Mechanic Street, Leominster,, MA 01453 (978)5,37-5296 (978) 537-142.3 (Fax) WHITMANOBINGHAM Sincerely, Jean Enright https://mallqoo-o,le.co,m/m,ail/u/o/?ui=,2&ik=ab4f.9ich7qAAvipw=ntkr-.nt= /20117 $4 Town of North lover Mail-Fwd:Brooks School Arts Prqect Planning Director Town of'Nnorth Andover 120 Main Street North Andover,MA 01845 Phone 978.1688.95,33, Fax 978.688.95,42 Email: jeri,!ri �rt,,Iiian,do,verma.gov, Web: www.,Tow,nof!Nort hA n dove r.,co rn, �c"Id.-,'I't .,J�P,9'(I� 21 17 Tbwn of North Andover Mail Fwd F w Brooks School Arts Project. ...� ,.. r IP gv 0 ro„ NO'', e- i N 1 E Rebecca Old,harn <ro1dham@northandoverma.gov> Fwd,� FW: Brooks School Arts Project 1, message e .mm .w..........mm w.e"e w. . - ee ..w....... : Rebecca ec I ' m <r l urru, ru rt h n errru . ° l From-: Anthony Cl �s cl es - Itr�laii ubiu hai .cI Date: Tuej Feb 7, 2017 t :2 Subject,: :, Brooks School Arts Project T : Lisa Eggleston <line @ -gl st l e Ir � �nt l co ,� , Jean Erurl t ,Iea it i t� i IIhand I( erm, .I o , ,, Jennifer Hughes <jhi Ies,@n,ci�rtliati�dover�ma,.go,v,> Lisa, Thank you!very much, for tine to discuss your re iew Ite s. Attached are plea sheets that Iave been upidated based upon your c rr meats. Below is a response to your comments: I., Zone A boundaries have been added to the plans,., They, are shown on planX . and C5.00 2�. The, roof material Is planned t e an III mI��! m I , -, I the run-off from the portion of the building to the 'blue slonle drip edge is tributary to, I -rete tl nareas that were installed i as part of the,Chapel and Connector Road PI'e t 'These areasprovide� added treatment � � r Isc �r��lng to the large open grass detention area along Great Pond Road and the south entranceto the campus. The rernaining portion of'the roof l l ei�discharges,l theexisting �t r ��t r� � the north side of the, r j ct. is st rmwa er y st outlets, �l an, aLoa between the c earena, said Great Pond Road which us lulu I the Watershed Protection District as �i does! ., _ rll ,,z>,.:;m,. wm,�naiw�mwrv�Y unarrwN yFarromr". a 6< f,n.F ar.e.�. «�, v � v rG r,n v v,rrv.....ric�ur>� ow u�r:... �,.rri,.Y,.,.e.�i /r,. �.w.,r rrf r�r.dr o-✓r..r.. um...�y✓F r/n,,r v rmr,Y.�� �r aid��va�,�a�.�!�r s. e aar�n„�!,�. sodraww�Ys�ur�,�mrr�wulru��Yflldir�mw�uF�.rr�a��u�cd�r�r.xrnu�;mrrlmrr�rnumuurwwr���u.�r�drrw��mJrrmllw�,aameenrrnarf mr"�cd�w�w�l,.my�far�;ll��,.mr ur�Iw„lDY,..nw��'�alr�ra�r�r pia dr � fw� rr z� �",�.�r2r ��._m�n�W r'� n", l ,� �r�dyf� lmiri not flow towards true e., I 'There is a 12-inchroof drain r m the, proposed ition connects t tie stormwater system within the new court yard area southeast of the Danforth Curter. This ;area will also, have new yard raps with 8-inch outlet to this system. This st um titer s I� �s, mentioned Move s disc ha Ire rug lr Great Pond i the Hockey Arena. SFr�idu waurm/irrrmladrnr!�rry irs,e�mrc.ma�mn ;.nur rl✓rr,Yf xrmrii'...n,»arv.. ';�urr� r riy ,...r,v,� ,;rr, !-,...r ef� ,,,e ,[,,,.,,,,;., �,,,.-. �...,.. Im .,IWl,wm wra,�N.u��w_..W�,�;..,ex,H„>r,..!Y..suw�Yl,.-ixr,����re,�m�u�rrua.�e,�.r�e�,"�,,.�r�mrFvr mauF.„�ri ow.ral,wr�,aatirrnlNrrrr�eaVirni_m,.�m✓l�Ira,rlert�,eunmr,�marrrn9n nrn> mrl. /Yf�� IYlf�ilf.1 V'Y/ONf9nV'wrluo,/�3.�„���'AW/,�lNu;i�,E�ll,7)Nl IIDWMI,�J'¢'r".r,�17Mu,!r�Aw��6rr9.yr�r"la�w71(A'�r�1e"friw'F9f....)ul„ ..fl uWllr,.eOcVr�/i"�I17/lrticm�AYB'„x,.RIII.Ni1./ll,7H11�,...�,�//�✓�o�l�`nly aw77�,1F�,Al.d�F,��W„��i,wA.%.u//�,�.�u',"�w,f,„AII J°�f�lkre,wdM lww . There is, a trench drain, located at the bottom new set I of stairs, frorn the new courtyard,, closest to the'Wilder Yn w � ." � � IMF... �." ".� � � I Dining IIR IN '.., lull 111 u� uir �ru. 1paX� u�IpMwip the �rrullrr,, , etrfXXl N ,a�emir/ri � lNff r !I If�WPdi}YN"r�,"n7"JD'^rr�mrv✓a.inn i'aWYLd''NNN�"JJAwUlmnlm mvr�rrnuun�l,rnr,,xw,ve orw&c�""'14"�nm^mmrvu�rw, �ylo•c�€x^mt ,ut of >Wau.ff luml".,.r ,o r �s -sectlr trench i�rlr Is shownr C3.001. 5 sump I Ira r l e i in the, basement in the evert ,I �r ru teroccurrences,,I t ensure that the � �.IMF � rw �u,rr� r wJ ! u� _vfr�fe,. f�. !_ r uY �rvr ulmm�sy�clmrnma>w�uu�n,w�urmwxa���xwa«mwxuNilY�vi l�i�wM:�oi,nr,�.wxu�-.frm mw - w�ewa�a r:rvw.�ntturw.Fnii:���ie,n,,mevh a rll„�,wN�rir....w.,„ ....f+rr,,.er ;;,w F , basement. ils not flooded. 'The discharge �t the sumppump Is to,the ground s uir ace rug the south, 'fl ebuilding. ��� �r I�f�Ilr� p I ow ;thIs water r,r✓N uanY-rw.l iw L ror�'ly f.t.e,ew✓.Lr �lby, overland r rl: uu r l! t YY existing ..... itx,,.,l I rthe-t l :g Il .-,�,;n rf�urn uw�t. r. l cells in.a st rt. �Irli s M u c i t_uls✓I l f . r �� .�/ulG wrrrr�Y rreIw./rL./ . wflrrar�.o7,Fv�INPW�fivlerar�nworrrFGr�d!,rwuw„l6rn„wLrrLuw s II�Iry��p, III,,'',�� !1 Lake. �,P1�lNI�wVWlvillIml HlJlrmrill 91,grass bowl which is tributary �r/''Y'"Wl��,r";�lAI7�MgWifbH6PnJJl1J,�!'Jf '',°""xilV,x WI",,,`MSS VNAVWiw/m'rf;:mi FlN',vr,�'wf, 6. The s,ubldrain has, been disconnected from the outlet pipe and is, s x Ilt�r tl drain tofacilitate, � ,�".�m�.� w� �., ���,��w�����x�����x, .,� rrw��,. r� ��.e w, ,���.��mxr�wa���r�������� ,� �wl�� I� ����r �I�,.�rrll��" �rt�sr r� ,, u�,� �����,� ".�r�".rru�a ��,�F,x�N„�,����F��:��,� " ,,�� �w�w � �,w����ww� rt c t r ail a a as, � r� 6 ut�� u allow r n, ~ l titer U11 N r, n ra4 AI �rilin di✓dxtrrr r,„ ���e m•LA�mhuwk/Alvald4 iwvWUN�"✓'w�'o rMif7m,um�w e,MwFw�Mxme,tiMe�nWi,.f'L Yr ',N wr e rvFx. wlr y, ,J,"/.IrI�IfN'/,fir.�'d i;�.,eu wffV14JJVGF(laon:V,'!0wFVw iw wn,�n�w'w+,Y4r iqi wYW'itlIWPWuulFwMfiNV.W4✓r-;WNJYa(/ff/�VmiIMRNiVwPNF'UIwnI,wIYXNVINY//)li%/M�W�'-+W,911MSI,OIID./Y//lf/,,IM,Ylewi.rorw�' r/OUN�i114M3APNIl4NIIW'.W"rfi( V)wm.». 1,mY N �"'f �/fiiNlvr fIIW.u.yy��Irr��'I�i Al,r%dF�NrtwlMl l(e/1!r'Wrrtlbl„/M1,/ef'(1(Gmw+i%4YFJaoYN/,l;'��v.IW'iNNW'{+Ijl„1�neriY/✓!M/A%Il from,rR Ir /rl��w �ar✓ rrnvuirr�fr lrrr e rl s afe�w Sheet "�"fR(e IPVV!IfC 2�.Mw�Y'uu/ has,s' �w I�4e YY1Y Idate information. bio retention et ll has, been added andis, on sheet . . an rw rou':6rtrmmurr vww�;lmwvttr�,:.i�,er✓x��M,rWsr�rnw.w�Ir mrrar�o:::N„�r�mmnaYald�rrnw�ulmmaw,w,wYar Awp,Yamamn�ollnulvu,�l!m�N,mr�«�wlrNlw�,11�y, ,fmNwY� ID�Ok�J!�^ IVl"!MW'NQ. w� ��e� t xi��tir �o��r I l j, ee p Ai �t C5. . `Thy actual tents mayhe aou 'ee ��r adfo � Iu t rrt I �� �s fill rort� rru rw It t u� t � It t rc r., ,:vglmmwnluu., ^Nurviy�rrtmwwui'�'Im1kG': ��YXIIJu'4,AlIN�,..VIl7VwIVNAWI�?dM ucrA'NIVMI'rrdd:rl,19�iluuf�lll,JiwlNdmwuir'i l7WwtlauWmwwIdW4dtlw'�W ., w ...� . 11�wu�xW�� wuN � IlII�ww��llr � � � 218/2017 Town of No�rth Andovelr Mail- w ®FW:Brooks School kts,Project Anthony M. Cleaves, P.E. Project Engineer Whitman & Bingham Assoclates, LLC 510 Mechanic Street Leominster, MA 01453 537-1423 (Fax) WHITMAN OBINGRAM A N N I R1015TRFO V4(,4Nffr,,,&IAND SLANIYM From-. Lisa Eggleston (iiiiailto��lis,a@egiglesitonenv'ir ni uental.c,omI I Sent: Tuesday, February 07, 20,17 9,101 AM 'To: Anthony Cleaves 1<ac1e v,es,,@,w�l,iiitt-nian�b,inghai-n.,com>,-I Jean Enright <j, right,@n,orthian�doverma.gov,>- Jennifer Hughes �hugi s,@noirthan�dol le,�rrTia.go,v> Subject* Rel Brooks School Arts Project Does 2 pimp your time work?'Jean, Jerg, let me know if you want to participate. Lisa D. Eggleston, P,E,, Eggleston Environim,lental 312 Old Framingham Rd,, Unit #2,9 Sudbury, A.01776 Tell. 508.259.1137 Fro,m: Anthony Cleaves <a,cle,aves@wh��litma,nbin,gh!a,m.clom> Date: Monday, February 6, 2,017 at 3:59 PIM To: L,isa Eggleston dies @egglesto�ne,ni'vironine,nt,al,.com>, Jean Enright <J"lenr,lg�ht@,n;,orthan erma,.gov>, Jennifer Hughes, <,jhiughes@nlorthand'lov,erma.gov>, Subject:: RE: Brooks c ll Arts, Project Lisa., Thank you very much for fitting in the revilees. I think it may be easiest if we,could speak sometilmie tomorr , Please let me know if you, have,any availability. httm/Im ai M rn Lqloo -n/m ai,1/u/Mui=M k=ab4 f3cb7 earch 98&view=ot&s ;�-i nbox&th=I.,Sal 1=i5n i CIPM-SrAl H7 91A qle.coi 2/8,120,17 Tawn of NorthAndover Mail-Fwd:FW-Brooks School Arts Project, 'Thanks, Anthony, Anthony M., Cleaves, P.E. Project Engineer Whitman & Bingham As,sociates, �LLC 510 Mech�anlic Street Leorninster, MA 01453, (978) 537-5296 (978)537-14,23(Fax) 7, WHITMAN01141INGHAM 'lN 11,� SS Ct 4, 1 "A 1 Pf GISTUO O*LNURS ,IMD 5M%TYW From L,Is,a Eggleston [malit,o�-lisa@eggllles,tonenv,ii- nme!ntal.c,oit-nll', Se,n,tl-- Monday, February 106, 2017 10:22 AM TO., Anthony Cieaves <ac,lIleav,es@whitmanbiingli,anl,.com�>- Jean Ennight <J en n1i g ht@ nor ndoverm a.gov> Jennifer Hughes <, ,do,v,enna.g,ov> Subject.- Re: Brooks Schlool Arts Project, Anthony elt at., have received and reviewed the January 17, 20,17 submittat materials for the, above-referenced pro"eat and, have, severat quiestions,11cornments. It wo,uL,d be usefuLif you could add the Zone A boundary the, plans in addition to the 'Watershed Distnicts. Zone A is defined by the, Massachusetts Dn*nking,Water Regulations (3,10 CMR 2,2,02), as mcluding,,, (a) the, Land area between the sur—facewater source and the upper boundary of the M*t,h;,i*n a 4010,foot Lateral, distance from thie upper boundary of the bank of bank,- (b) the land a re a a Class A surface water source, as, defined in 314 CM,R 4.05(3),(a); and (c) the Land area within a 200 foot ,P la rat distance from the upper boundary of the bank of a tn",buta,ry or associated surf aye water body., 2. 1 note that the architectural plans for the proposed arts building call, for rnetaL roofing and corrugated metal i I 1 1 1 1 11 ip rain guards, with runoff from the eastern portion of the addition infiftrated directly'via, the, bluestone dri r trenches. Can we get more in T I ormation, on the type(s) of metal, proposed? The issue is whether it Is,a type with the potential to leach copper or in - the MA Stormwater Standards,specifically state that infittratlion of mpthin the 'Zone I! or Interim runoff frorn a metati roolf (galvanized' steet or copper 1 that *s located Wellhead Protlection, Area of a public water supply reliquires pretreatment by means of a BMIP capable of removing metals, such as a, sand filter,, organic filter, filtering biorelt,entiion area or equivatent. Whi'le the Standards ion' n the protection zones for a surface water supp,ty it is, re ass nabtle to assume that thesarne requirements should pertai'n to metal roofs WIfthini the, T'own s Watershed -,A1,r47kzi m I=lqn 1 f!P,(n-F;rA1 d7 3/6 2/812017 Town of North Andover Mail,-Fwd-FW:Brooks School Arts Project Protection Distdict. It should bei possible, to enhance the dr-ip trenches to provide the fittenIng necessary, 3. Sheet C2.0�O shows an 8-in drainconnection frorn the proposedbuilding to the existing storm, drain in the area to the south of the, Danforth Center. Is this also, roof draina� ge and, if'so, where does that storm drain discharge.? 4. It i's unclear to me what the source of ftow to the two, proposed trench drains, in that area. between the, Danforth Center and the Dinling Hall/Student Center Is. A deslign detait for the trench drains,is also needed. 5. S heet C2.00 calls for a proposed sump p�ump discharging to,grade at the northeast corner of'the proposed building. What is the source of flow t o thie sump pump and is it consistent with the intent to maximize groundwater recharge on the sits? 6. Sheet C2.010 also,shows, a 6-in subdrain ou t,let on the proposedbloretention basin, corm ectin to,an existing, in man�hole. No inverts are given, but it appears likely that this connection would drain off flow that would otherwise be recharged in the basin. 7. 1 was unable to, locate a des'ign detail for the bfor etention basin/rain rein. 8. AMItional, detail, i's needed on the proposed grading for the soccer field. Pease let me know ifyou� have any questions or'want to discuss. I am still working remote ly a,nd u nable to meet,in person, but can be available for a conference call, if that would help,. Lisa D, Eg,glest,on, RX0, Elggleston Environmental 32 it Framingham Rd,, Unit #29 Sudbwy, MA 011776, 'Tie 15 0 8.2 59.113 7 From.- Anthony Cleaves <acle,av,es@w,liii,t,imia�nblinigliaim,c,om> Date,: Wednesday, January 18, 2017 at 11-19 AM 10 To: Lisa Eggleston <Iillisia@eg�gle!,stor�ieniviii"onmeuital. ,rn> Subrect: Brooks School Arts Project Lisa, If you havien"'t heard yet, Brooks School Is planningfor improvements to their campus. We have just submitted dilocuments to the'Town for Planning and Conservation, revIew an dare mailing out documents to you this week. I've attached the documents, that I could, the fille size is too large on the others,ii, Please let me know of,you have,any questions. Thanks, Anthony Anthony M. Cleaves, RE. Project Engineer hUos,//mail.,aooale.com/maii/ulo/?Lji=2,&Ik=ah4flr,h7cM,vipw=ntP..q,p-qrr.h=inF%nlvkft-i=I 2_123/2017 Town of North Andover Maid-Nye:Brooks School,arts Prqject IM a N01q'H' AN' , '­,,,0VERRebecca Oldham r l+ �h r 11 t ai er , .g� , Mass 0, ,.U Re: Brooks 'School, Arts, message ...................Lisa EgglesWn �a., �� <hisa , lest ne it rmental.c r Th up Febl,23, 2 '11.7 at 2:36 PM : Anthony Cleaves < cIeaves@w itman 1 g c u> cc: Jean Enright jenn'ght@ a e a. � Jennifer Hughes <j L] @noirtharu ^ rt wa,g >, Rebecca Oldham Rebecca et al., Just letting u know,that I have reviewed these design revisions and that they satisfy most of my previous comments. The only comments I havwetlands aree at th is timeare t at th 9~1 -Z, , or .,,, e ine,.a l n,.-s ;, h a.r,hn h 1 I'm not sure that it is going t make a i t r r��� r thisr art "�mrvrw,nrrrm,�" rvwwYY:,.. uriii,%nTMan „r^YvxNn :. rrma+nr nr.vrwn now,�r,^m'r+Uw aev'J arm,,./,/�(l,,,wvlu, r,11,�M�l,rih'f�"�TMPYMN' � I r gut i should r rs garir the � � J / ,,d)sYN rqlre importantly I do have / concern re Based r t, 't-appears,,,,, , r h below$eh..e _..normal g.,r � �wvIw�,m..w 4av�,:xr:mrnmv ;rm�a which�: w+,c a�axr ms mmnw.,rrr.� he t e ' rn marI,.0 l d not r rr r;nArr, „e rr�,rr u.2rr,:.re rr wea/r„,t ...rr..g r�rur�urrl„mr u�ra.mi�mrar rr2N ��rrllru undwat M ., � r l t�ru tl r �undwater in the area, er. It this is the case it wog i es . ,, pl r wr ,groundwater, � . tirr rrrm„ac„iytrarraalr nr w,mrn,r�irrrarl/r„nler r�Vii„,u:: �uru�ta r t rutiw r �h�ar . l � r .1,,� r ,I,�rrie��r II think �rtlr urtwratur regarding th n r, L w ut o l uuJ r .n.Q, rd a aa"irrr!(rr �W ....,�I/�..w���� YIYrJ'/d%�/l/%U/�/.Mll%'l(AI111111Y{IIVlM0Ap11UlAiF1Y1N1/,?IINri%///////I/ur l+d/%Jiiirii i.r i �,,;, r - I h�u + th�uis r at e, �I r�� I�a.s het know i you have n u.0 sty � r want t is ssi. Lisa D. Eggleston, PE Eggleston Environmen.tal 32 Old, Framingham Rd#29 Sudbury, 6 Tel (508) 2591-1137 On Feb 7, 2017, at 31:,28 P'K AnthonyCleaves h' hit ' li'i I wrote: Lis 'Thank, you very, much,for time to d1s,cuss your,review,items,. Attached are, plan sheets that, updated based upon your,comments., Below is a response t ,your c ruts ., Zone A, boundadeshave been aidded to the, la s. They are shown n on plan . . 00 roof material is planned to be an I u inu i- in alloy-cloated steel sheet., The run-offfrom t he portion of the gull_inn i to, the l t dripii , t int t i -r t do are that r ICI inst llas, part the lConnector aProject. Theseareas will provide treatment before discharging to the large open grass, bowl detention area, r t �of and the soluth, entrance t , the ca,mipus. The remaining porti n of the roof discharges t ,the existing ston-nwater,systlem on the north side, t' rOject. This stiormwater system outlets to an area, between the, hockey r I Great Pond IIIIRoad whichIs, outside ofthe Watershed Protection ction Dist i°ct s it does not flow towards, the Lake. Y iI There is a, 121-Inch roofdrain from the proposed addition, that connects to the stogy ter s,ystern wilthin, e niew court yardarea southeast of the Danforth Center. This, area will also 1 inch outliet. to this system. its stormwater systemi is as mientionedabove as dischargingr Great Pond alb and the Arena. There4. is a trench drain located at the bottomset of stairs from the new,courtyard, closest to, the Wilder ining� ll This is 'Intended to pickI the small arnount of water t the walkway that may ;e trapped at the bottomthe stairs. A cross-section the trench dr in 'is shlown on sheet I 1 212312017 Town of North Andover Mail-Re,Brooks School Arts Project 5 if. A sump, pump Is being provided in the! basement In the event o hi 1! h roundwater occurrences, to ensure that the basement is not flooded. The discharge of the sump pump is to the ground' surface on the SOUth of the buii Wing. When operating, this water would travel by overland f to to existing bio-re tention cells installed as part of'previous, projects, the to the large open grass, bowl which, is tributary to the Lake. 6. 'The sub dralln has been disconnected frorn the outlet pipe and is designated as an exifiltration draini to, facilitate surface water to,the subsoil'. A slandpipe has been added to,the outlet pipe to allow for an overflow of water build up from larger storm events. Sheet C2.00 has the updated inforimationi., T A, blo retentlon, detail has been aided' and is on sheet L8.2'. 8. Expected re-gradiing of the existing soccer field has been added to sheet C5.00. The aictua] extents may vary depend ing upon the amount of m excess fill' generated fro the!Art Project but is not expected to go beyond what has been shown. Anthony M., Cleaves, P.E. Project Engineer Whitrinan & Bingham Associates, LLC 510 Mechanic Street Leominster, MA 01453 (978) 537-52,96 (978) 5137-1423 (Fax) WHITMAN108ING11AM, R5 IN,14D SL '%1Y01 From: Lisa Eggleston [rniailt,o�lis,-cil@e,ggles,torienvjroinmetita�1,,co,i iI Sent.-, Tuesday, February 07, 2017 9:01 AM To: Anthony Cleaves <a,clea es ,hiltni,anb�inglian i,.clom>, Jean Enright <jenr'lght@northandovemi,a,.gov l, Jennifer Hughes <jhulgh�e l@�no�rth�andolverma.glov> Subject: Re- Brooks School Arts Project Does 2, pm your, erne work?Jean, Jeri, let me know,If you want, to participate., Lisa D,, Eggleston,, P.E. Eggleston Environmental 32,Old Framingham Rd, Unit #29 Sudbury, MA 01776 Tie( 5 0 8.21159.11137 .................... ....... ............ .................... ........ hUpsii/kin ai Lgoogle.corn/rn ai 1/u,10,/?'ui=2&i k=ab4f3cb798Wew=nt&search=i nbox&tvnP.=.-19n6hh93nqnrArW-F;3Uh=1 1-1 rr-fZnAAr-fV-% 2/23/20,17 Tcwn of North Andover Mail-Re:Brooks,School Arts,Project From,- Antho,ny Cleaves, <ac I eaves,@,wh it man bi ing harn.com> Date: Monday,, February 6, 2017 at 3,,:59 PM @,�ii�o�i't�hanido:v�e�-,ma.g,olv>, To: Lisa Eggleston <1�'isa@egigies�to�ri,,e�iiv,�irionnie l >, ,ti�t,a �,com Jean Enright <'enright Jennifer Hughes <11"hL]gIlies,@nio,�itliaiidovei-fir'ia,,g,ov> Subject: RE: Brooks, Schooll Arts Project Liza, Thank, you very much for fitting in the review. I think it, ima,y, beeas'lestifwecou�ldsp,eak sometime tomorrow. Please let me know ify'OU have any availability. Thanks, Anthony Anthony M. Cleaves,, P.E. Project Engineer Whitman & Bingham Associates, LLC ,510 Mechan1c, Street, Leominster, MA 01453, (978) 537-5296 ('9178) 537-14213 (Fax) 'WHITMAN 00INGHAM ct alf Fri : Lisa Egglestion m a]lto-.11,ill,s a @egg lies tioneniv,i ironm ental.coni] Sie ruary, 016, 210171 10422 AM To,* Anthony Cleaves, <acleaives@wh'itniaribingharri com>, Jean Ennilght <,Jetitight,@,ti,ort,tiaridovermiia,.gov>,- Jennifer Hughes <,j h ughies @ noiil handov en-n a.gov Sub"lect: Re: Brooks School Arts Project A,n'thiony,et at., I have received and reviewed the January 17, 2017submittal matedals, for the, above-re ferenced project and have several iqIuesiti'�ons/c�o,mm,eintsi,,,, 1. 1twould, be useful, Ifyou could add the Zone A boundary,to the planis in addition W ,the Watersheld Distrildis. Zone A is defined by the Massachusetts Dninking Watier Red ion -:I/, [AP),iii;-e.) .i fir'-,-il-LAf')j-'k7QR3Liii i=ntPczp-;4rrh=inhoy&tvne=15a,6bb2 tli,='15a6c79c5!5909526&siimi=i5a6c79c55909526 3/5 2/23/2017 Town of North Andover Mail®Re:Brooks School Arts Project (3,10 CMR,22.02), as inclulding: (a) the [and area between, the surface water source and the upper boundary of the bank, (b) the tarp d area"thin a 400 foot tat at distance from the upper bounda1 f the bank of a Class A surface water source, as, defined in 314 CMR 4.05(3)(a); and (c), the land area within a 2,00 f ot taterat distance, from the upper boundary, Y 0 of the bank of a tn"butary or associated surface wat,e:r,body. 2. 1, note that the architectural plans, for the, proposed arts bufld tug g, call. for metat roofing and corrugated metat rain guards) with r noff from the eastern portion of the add]I tion infittrated directly,Via the, btuestone drip trenches,. Can we, get more information on the type(s) of metat proposed? The issue is,whether i't is a type with the potential to [each copper or zinc- the MA Stormwater Standard's specificatly state that infittraflon of runoff from a metal roof (galvanized steet or copper), that 'I's tocated wthin the Zone 11 or Interim, Welthead Protection Area of a pubtic water,suppty requires pretreatment by means, of a BMP, capable of removing, metats, such as a sand fitter, organic filter, filtering bioretentlion area or equivatentO, While the Standards don't, mention the, protection zones for a surface water sup,pty it is reasonabte to assume that, the same re iirements should pertain to, metal roofs witN'n the Town"sW titers fied ProteclUon Distn*ct. It should be possible to enhance the, dn"p, trenches t r i filtering necessary. 3. Sheet C2,.00 shows an 8-in drain connection from the proposed building, to the existing storm drailn the area to the south of the, Danforth Center. Is this atso, roof drainage,and, if'so, where does that storm drain discharge.? 4W It is unctear tio me,what the source of stow to the two proposed trench driains, 'in that area between the, Danforth Center and the, Rinn g Halt/Student,Center is. A deel igndetall, for the trench drains,is, atso, needed. 5. Sheet C2.00 calls, for a proposed sump pump discharging to grade at the northeast corner of the proposed building. What is the source of flow to the sump pump and is it consistent with the Intent to rMaxi ze groundwater recharge on the site? 6. Sheet C,2.00 also shows a 6-in subdraln outlet on the proposed bioretentilon basin, connecting tol an existing drain mianhole. No inverts are given, but it appears, likely that this, connection would drain off flow,that would otherwise itecharged in, the basin. 7. 1 was unable to tocate a, design detaR, for the bloretention basin/rain garden. 8. Addlitionat detail, is needed on the proposed gradling for the soccer field',,, Please let me know lif you have any questions or want to discuss. I am still, working, remotely ancl unable to, meet in person) but can be avaitable for a conference,call if that would heat, . Lisa D. Eggleston, P.E. Eggleston Envi"ronmental 32 011A Framingham Rd, Unit, #29 Siu&ury, MA 01776 Te t 5 0 81.2 5,9113 7 From: Anthony Cleaves <acleaves@whit manbingham.corn> Date-. Wednesday, January 18, 2017 at 11:19 AM To: Lisa Eggleston <Iisai@egglesto,nienv'ironni,ental�.,com> Subject: Brooks School Arts Project Lisa,l If you haven't heard yet, Brooks School is planning for improvements to their ir campus. We have just submitted documents, to the Town for Planning and Conservation review and are mailing, out documents to you this week. I've attached the cloicumtints that I could, the file size is too large on the' others. https:'//mail.google. om/mail/U/0/?ui=2&ikeab4f ,vi!ew;--Pt&sea,rch�=inbox&tvne= .riq6hlh9.'A(I,;i,q'iPilaF;Ath= I Air- 2/23/2017 Town of Norte,Andover M ai I-Re"Brooks School arks Project Please let mie, kniow,if you have any questions. Thanks,, Anthony, Anthony M. Clea,ves,, P.E. Project, Engineer Whftmari & Bingham Associates,, LLC 510 Mechanic Street Leominster, MA 014513 (9718) 537-5,296 (978) 5371-1423 (Fax) WHITMAN BINGHAM ,<Brooks Arts, Existing EX1011 -2-7-17 DRAF'T.pdf> <Brooks Arts utility C2 -2-71-17 DR,A,FT.,pdf> <Brooks Arts, Erosion C5 -2-7-17 DRAF'T.pdf> <Brooks School - Per rout Set -1 1-81.2 rev1s1bn,.pdf> .......... ............... 2 aftach mere ts, WHITMAN BING,HAM i image003Jpg 4K WHITMAN BING rod; M lrnageO03.61 Jp9 4K k4f lenntl h df)/?i 1,.S26hh230,q,,q58Oe5&t1i=15a6c7955,W9,526&sirn1 1,,,,5a&79c,%909,526 5/5