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Phase IV final inspection report, remedial monitoring report no. 15 and Phase V remedy operation status report : 50 Tufts Street, Somerville, Massachusetts / submitted to: UniFirst Corp. ; submitted by: GEI Consultants, Inc PDF

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Preview Phase IV final inspection report, remedial monitoring report no. 15 and Phase V remedy operation status report : 50 Tufts Street, Somerville, Massachusetts / submitted to: UniFirst Corp. ; submitted by: GEI Consultants, Inc

SOMERV/LLE PUBLIC LIBRARY Geotechnical Environmental ?99: Water Resources Ecological MassDEP RTN 3-23246 Phase IV Final Inspection Report, Remediai Monitoring Report No. 15 and Phase V Remedy Operation Status Report 50 Tufts Street, Somerville, Massachusetts Submitted to: UniFirst Corporation 68 Jonsprn Rd Wilmington, MA 01887 Submitted by: GEI Consultants, Inc. 400 Unicom Park Drive Woburn, MA 01801 RECIIVID 781-721-4000 August 4,2011 AUG 0 4 2011 DEP Project 04516-3 northeast, regional office Vice President MassDEP RTN 3-23246 Phase IV Final Inspection Report, Remedial Monitoring Report No. 15 and Phase V Remedy Operation Status Report 50 Tufts Street, Somerville, Massachusetts UniFirst Corporation August 4, 2011 Table of Contents vii Executive Summary 1 1. Introduction 1.1 Site Contacts (310 CMR 40.0874[3][a]) 1 1.2 Background 2 1.3 Purpose and Scope 4 1.4 Public Involvement (310 CMR 40.1400) 5 2. Phase IV Completion 6 2.1 Regulatory Framework 6 2.2 Implementation of CRA 6 2.3 Permits, Licenses, and Approvals (310 CMR 40.0878[3]) 7 2.3.1 Capuano Center 7 2.3.2 Residential and Commercial Properties 7 2.3.3 60 Tufts Street Property 8 2.3.4 50 Tufts Street Property 8 2.4 Phase IV Completion Statement 8 2.5 Response Action Outcomes 8 2,5.1 Class A-3 RAO-P 9 2.5.2 Class B-1 RAO-P 9 10 3. Data Collection 3.1 Groundwater Sampling 10 3.2 Indoor Air Sampling 10 3.3 Indoor Air Sampling - Checklists and Methods 11 3.4 Meteorological Conditions 11 3.5 Sub-Slab Soil Sampling 12 4. Capuano Center Phase IV Activities and Final Inspection 13 4.1 Introduction 13 4.2 Permits, Licenses, and Approvals (310 CMR 40.0878[3]) 13 4.3 Remedial Objectives 13 4.4 Operation and Monitoring 14 4.5 Efficiency and Effectiveness 14 4.6 System Maintenance and Modifications 14 4.7 Management of Waste Materials 14 15 4.8 Final Inspection 4.9 Ongoing Phase V ROS Activities (Modification of Phase IV RIP O&M) 15 GEI Consultants, Inc. ii AH«-« ifTf! ‘»r.s f«irQ«^ 4uMii^ tsnft df oi4 r«0(|«f| i.e3cu«i>it9cel| .flHvi«/iio4 affeiT Ot -'m atfJOlnoO to eW^T Vl m Wv yiEiT^nwg svrmotyg r <[«]( CfQ.aJ^jWfTG : J / £ ■>: wjocj^i bon K. i i (00^ I .or» ^MD 0r£» ‘fiorn^vlovn; >Hdi'^ >.2 ,Bo»9)<}ffi\>0 VI e*«rn .S IS d ■ ^ AH 3*^0 r r •M «4» r > £}? vBiLC^ >2MD 01C) atevcnqqA ()nfi ts V ohniiiL’l ITS T w^Hwqoi^ feionrorniTiQD hns febor^bk^if l.Ll s mui'.its Ytraqoi*! 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Residential and Commercial Properties_ 5.1 Introduction 16 5.2 Permits, Licenses, and Approvals (310 CMR 40.0878[3]) 17 5.3 Remedial Objectives 17 5.4 Option 1 EPEMS 17 5.4.1 Operation and Monitoring 18 5.4.2 Efficiency and Effectiveness 18 5.4.3 System Maintenance and Modifications 18 5.4.3.1 95 Franklin Street 19 5.4.3.2 27 Tufts Street 19 5.4.4 Management of Waste Materials 20 5.4.5 Final Inspection 20 5.4.5.1 35-37 Knowlton Street 20 5.4.5.2 31-33 Knowlton Street 21 5.4.5.3 13 Morton Street 22 5.4.5.4 18 Morton Street 22 5.4.5.5 23 Tufts Street 23 5.4.5.6 103 Washington Street 24 5.4.5.7 95 Franklin Street 24 5.4.5.8 9 Knowlton Street 25 5.4.5.9 13 Knowlton Street 26 5.4.5.10 27 Tufts Street 26 5.5 Option 2 and 3 EPEMs 28 5.5.1 Operation and Monitoring 28 5.5.2 Efficiency and Effectiveness 29 5.5.3 System Maintenance and Modifications 30 5.5.4 Management of Waste Materials 30 5.5.5 Final Inspection 30 5.5.5.1 95R Franklin Street 30 5.5.5.2 12 Morton Street 31 5.5.5.3 11 Morton Street 31 5.5.5.4 4 Morton Street 32 5.5.5.5 10 Morton Street 32 5.5.5.6 91-93 Franklin Street 33 5.5.5.7 17 Knowlton Street 34 5.5.5.8 32 Knowlton Street 34 5.5.5.9 19-19A Morton Street 35 5.5.5.10 166-168 Glen Street 36 5.6 Activity and Use Limitations 36 5.7 Properties with Insufficient Rounds of Sampling 36 5.7.1 Complete Vapor Intrusion Pathway which Constitutes NSR 36 5.8 Ongoing Phase V Activities 37 5.8.1 EPEM Operation and Monitoring 37 5.8.2 EPEM Modifications 37 GEI Consultants, Inc. ill 'i. jo<tj0 9m ■ MKW •v<!»t3 n»(li^>«KiO i%6:ra% V Mini* Hm et .9M no^oH zfto».uf<aM>#cW »!«««}§ nrtuT Ot df rv/iy>nb^fpfA VI Uf t> bofi .?t>8£iyoU .jUiirnaS l.l VI V! fuodrjO Kt •■— «•S' ij«jJ ai '^r.no^tocvM bofi «se-^tETiq<3 f>.£ 8( R<5!5ifr>yb:>;^3 buB gnouficniboM bn^ ooor/tutniaM r-T^ £>,£ Ml ; b«n^5 iuI:jIa ^ el , }5.:«i2 eftuT vr 0£ 0 ncir^"«rtl Itni^ tA I £ ■f -' » 0£ KoriiZ noJlwo/1^ V£-tC r.e>.£ (£ tsaisZ aolIwooM ££-11 ££ i93ru<^ jiafroM i f )imJ8 notroM 81 ££ )exyil2 tAi/f tl 8 e.t.e *1 >9yrtZ no)5/iirtef;W €01 * K »3TJ nolIwott>l 9 8.e>7: d£ >9cn;<s nollwoaX E f d£ jj^EiftuTVS OI.i.M 8£ '' lU a dM3^H f. boA £ BOckjO ^S gnno)moM-w^T«>j*»iS4iO 1.2.^ v»£‘ bfw i*^.£ 1>C ?#ioA«odiboM bos rxnwiDlmtM fiart^iJ €.^.£ 0 rierateM 9)2eW lo jfr5^nw4ii:nBM € (>€ n(MJOi!K^J2Ai IflQl'^ 1,1, t ^ lagUSutUfiri^ il^Q K£.£?. 01 It loSiUeJ iiohc*M i i Lt.t t twni2 af»noM II \l lOi^u^nonoM ^ U n)©Tl2r,iinoM0f li 3 )Qcrcr2mf>liWT3£P.!9 Olli ■'3? a ' fwil8 no^fwo(Ol U £.£.£.£• I >£ *. , ; V! •*’ |!Mril2 ilOflwoiJI SC t i nwnoM A9I-9( ti dl ♦!»*d2n»l0 8il-ddl Ol.Z,l,l BnobttimfJ ae J bna xiiviiaA di di gfulqmttS^o abnwoJI ^l»bEAu^(?l rfJrw <j3ftTjyfcq^ dC H2W bJulhwioD (bifiv/ ti<imn)al loquV stviq/noO I,V.8 ve ^dbfVftuA V aajirfi ^ntOijiO re V£ ganoIiiioM to* noAdT)<{0 MSHOl 1.8«i V£ iaaiteoAjboM MH^IH £»8,C Hi .sfnfttUienoO 130 MassDEP RTN 3-23246 Phase IV Final Inspection Report, Remedial Monitoring Report No. 15 and Phase V Remedy Operation Status Report 50 Tufts Street, Somerville, Massachusetts UniFirst Corporation August 4, 2011 5.8.3 Installation of New EPEMs 37 5.8.4 Indoor Air Sampling 38 5.8.5 AULs and RAOs 38 6. 60 Tufts Street Phase IV Activities and Final Inspection 39 6.1 Introduction 39 6.2 Permits, Licenses, and Approvals (310 CMR 40.0878[3]) 39 6.3 Remedial Objectives 39 6.4 Efficiency and Effectiveness 39 6.5 Operation and Monitoring 40 6.5.1 Unitl 40 6.5.2 Unit 4 40 6.5.3 Unit 5 40 6.6 Management of Waste Materials 40 6.7 System Maintenance and Modifications 41 6.8 Final Inspection 41 6.9 Ongoing Phase V ROS Activities (Modification of Phase IV RIP) 41 7. 50 Tufts Street Phase IV Activities and Final Inspection 42 7.1 Introduction 42 7.2 Permits, Licenses, and Approvals (310 CMR 40.0878[3]) 42 7.3 Remedial Objectives 42 7.4 Efficiency and Effectiveness 42 7.5 Operation and Monitoring 43 7.6 Management of Waste Materials 44 7.7 System Maintenance and Modifications 44 7.8 Final Inspection 44 7.9 Ongoing Phase V ROS Activities 45 8. Monitored Natural Attenuation 46 8.1 MNA Program Objectives 46 8.2 MNA Activities 46 9. Remedial Monitoring Report No. 15 48 10. Phase V ROS Submittal 49 10.1 Introduction 49 10.2 Regulatory Framework 49 10.3 LSP Opinion 50 11. 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