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Release abatement measure plan : 343-349 and 351 Summer Street Somerville, Massachusetts / prepared for: 351 Summer LLC c/o The Maggiore Companies ; prepared by: EnviroTrac, Ltd PDF

2017·30 MB·English
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Preview Release abatement measure plan : 343-349 and 351 Summer Street Somerville, Massachusetts / prepared for: 351 Summer LLC c/o The Maggiore Companies ; prepared by: EnviroTrac, Ltd

RELEASE ABATEMENT MEASURE PLAN 343-349 and 351 Summer Street Somerville, Massachusetts MassDEP RTNs 3-33735 and 3-34098 June 16, 2017 Prepared for: 351 Summer LLC c/o The Maggiore Companies 13 Wheeling Avenue Woburn, Massachusetts 01801 Prepared by: EnviroTrac, Ltd. 2 Merchant Street, Suite 2 Sharon, Massachusetts 02067 A Full Service Environmental Consulting And Contracting Firm RAM Plan; RTNs 3-33735 and 3-34098 TABLE OF CONTENTS Page # I. 0 INTRODUCTION.1 2.0 PROPERTY DESCRIPTION.1 2.1 Disposal Site Boundary Descriptions.2 2.2 Sensitive Receptors.2 2.3 Groundwater and Soil Classification.2 2.4 Previous Environmental Investigations.3 3.0 DESCRIPTION OF RELEASE [310 CMR 40.0444(1 )(B)].3 3.1 Description of Release.3 4.0 RELEASE ABATEMENT MEASURE PLAN [310 CMR 40.0444(1 )(C)].5 4.1 Person Conducting the RAM.5 4.2 Objectives.5 4.3 RAM Activities.6 4.4 Implementation Schedule.7 5.0 SOIL MANAGEMENT.7 5.1 Remediation Waste Management [310 CMR 40.0444(1 )(d)].7 5.2 Similar Soils Management.8 6.0 PROPOSED ENVIRONMENTAL MONITORING PLAN [310 CMR 40.0444(1 )(E)].8 7.0 PERMITS [310 CMR 40.0444(1 )(F)].8 7.1 Federal Permits.8 7.2 State and Local Permits.8 8.0 APPROVAL OF LICENSED SITE PROFESSIONAL [310 CMR 40.0444(1 )(G)].9 9.0 EXCAVATION CERTIFICATION [310 CMR 40.0444(1 )(H)].9 10.0 OTHER INFORMATION [310 CMR 40.0444(1 )(l)].9 II. 0 PROPOSED STRUCTURE FOOTPRINT EVALUATION.9 11.1 Site Assessment [310 CMR 40.0442(3)(a)].9 11.2 Risk Characterization [310 CMR 40.0442(3)(b)].9 11.3 Feasibility of Achieving or Approaching Background [310 CMR 40.0442(3)(c)].10 11.4 Exposure Point Concentrations (EPCs) that Exceed Soil Upper Concentration Limits (UCLs) [310 CMR 40.0442(3)(d)].10 11.5 Elimination or Control of Any Source of OHM Contamination [310 CMR 40.0442(3)(e)]. 10 11.6 Management of Non-aqueous Phase Liquid (NAPL) [310 CMR 40.0442(3)(f)].10 11.7 Other Remedial Actions Deemed Necessary to Ensure Eventual Achievement of a Level of NSR for the Entire Disposal Site [310 CMR 40.0442(3)(g)].10 FIGURES Figure 1 Locus Map Figure 2 Site Plan Figure 3 MCP Priority Resource Map 3Sll TABLES Table 1 Summary of Monitoring Well Gauging Data £ is/ Table 2 Summary of Groundwater Analytical Data Table 3 Summary of Soil Analytical Data - VOCs vi Table 4 Summary of Soil Analytical Data - VPH, EPH Table 5 Summary of Soil Analytical Data - All Other Analyses Table 6 Summary of Surficial Soil Analytical Data Page i tnvirolrac 1 rvirunmt-nl.il Services RAM Plan; RTNs 3-33735 and 3-34098 343-349 and 351 Summer Street. Somerville, MA June 16. 2017 APPENDICES Appendix A Soil Management Plan Appendix B Health and Safety Plan Appendix C Dust Monitoring Plan Appendix D Focused Risk Characterization Appendix E Geophysical Survey Report Appendix F Laboratory Reports Page ii Enviroirac Environmental Setvicr-v RAM Plan; RTNs 3-33735 and 3-34098 343-349 and 351 Summer Street. Somerville, MA June 16. 2017 1.0 INTRODUCTION EnviroTrac Ltd. (EnviroTrac) prepared this Release Abatement Measure (RAM) Plan on behalf of 351 Summer LLC (351 Summer) for the commercial properties located at 343-349 and 351 Summer Street in Somerville, Massachusetts. 351 Summer LLC acquired the 343-349 Summer Street parcel from The Dakota Group on February 6, 2017 and acquired development rights for 351 Summer Street from the Dilboy VFW Post #529 for the 351 Summer Street parcel on February 6, 2017. A RAM Plan is required to manage potentially impacted soil related to Release Tracking Numbers (RTNs) 3-33735 and 3-34098 during development-related construction. This RAM was prepared pursuant to provisions of the Massachusetts Contingency Plan (MCP) set forth at 310 CMR 40.0444 and Massachusetts Department of Environmental Protection (MassDEP) Policy #WSC- 00-425. 2.0 PROPERTY DESCRIPTION The Property is an approximately 0.93 acre plot of land comprised of two (2) parcels of land identified by the City of Somerville Assessor’s office as Map #25, Block D, Lots #33 (343-349 Summer Street) and #36 (351 Summer Street) in an area zoned Central Business District CBD and Residence A (RA), and is surrounded by properties zoned Residence B (RB) and Neighborhood Business (NB). The latitude and longitude of the Property are 42.39369° North and 71.11910° West, respectively. The location of the Property is depicted on Figure 1. A Site Plan depicting the approximate location of the release and other pertinent features is provided as Figure 2. The Property consists of a vacant parcel of land located in a flat, low-lying area surrounded by residences and commercial properties. The Massachusetts Bay Transportation Authority (MBTA) Red Line runs directly below the Site within a bedrock tunnel approximately 80 feet bgs. The parcel identified as 343-349 Summer Street is currently undeveloped but contains an air vent for the MBTA Red Line which runs beneath the southwestern portion of the parcels. The parcel at 351 Summer Street is currently used as a paved parking lot for the adjacent George Dilboy VFW Post #529. Historically, the 351 Summer Street parcel was used as a gasoline filling station prior to the parcel being vacated to facilitate the construction of the MBTA Red Line beneath the property in the 1980s. The 343-349 Summer Street parcels had been the location of residential dwellings and associated parking. Two (2) 60-gallon petroleum underground storage tanks (USTs) were formerly located at the Facility and were removed in August 2016. The Property is bordered by the following: North: Residential properties South: Summer Street, beyond which are residential properties. East: Residential and commercial properties. West: Veterans of Foreign Wars building/parking lot and commercial properties. Page 1 EnviroTrac EnvirnnmirnUl Services

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