Final revised public involvement plan : (Former) Everett Staging Yard, 1 Horizon Way, Everett, Massachusetts / [prepared for: Massachusetts Department of Environmental Protection, Northeast Regional Office ; prepared by: GZA]

2016·3.1 MB·English

by  GZA GeoEnvironmental, Inc.

May 2, 2016
File No. 01.0171521.10
Massachusetts Department of Environmental Protection
Northeast Regional Office
205 B Lo\A/ell Street
Wilmington, Massachusetts 01887
Re:Final Revised Public Involvement Plan
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(Former) Everett Staging Yard
Environmcntau
G'L
1 Horizon Way
Ecolocicau
Everett, Massachusetts
Release Tracking Number 3-13341
Construction
Management
To Whom It May Concern:
GZA GeoEnvironmental, Inc. (GZA) has prepared this Final Revised Public Involvement Plan
(PIP) on behalf of Wynn MA, LLC (Wynn), to outline proposed public involvement activities
under the Massachusetts Contingency Plan (MCP, 310 CMR 40.0000).
249 Vanderbilt Avenue
1.00 INTRODUCTION
Norwood, MA 02062
T: 781.278.3700
On April 8, 2015, Wynn, as owner of the above-referenced disposal site (the Site), received a
F: 781.278.5701
petition from residents of the City of Everett requesting that the disposal site be designated
F: 781.278.5702
as a PIP site in accordance with Massachusetts General Laws (MGL) c. 21E §14(a). This law
www.gza.com
requires that, upon receiving such a petition, a plan for involving the public in decisions
regarding response actions must be prepared and a public meeting held to present the
proposed plan. The Site was designated as a PIP site on April 28, 2015.
Since the Site has been classified as a Tier II site (see Section 2.00) under the applicable
provisions of the MCP, the Licensed Site Professional (LSP) for the Site is responsible for
overseeing response actions under the MCP, including the public involvement provisions of
the regulations. The LSP for this Site is Larry Feldman ([email protected];
[phone]). Response actions to be conducted under the MCP include assessing the
nature, source and extent of the contamination; evaluating risks related to Site conditions;
assessing whether cleanup actions are necessary; and, if necessary, selecting and
implementing the most appropriate actions. In addition, as a PIP site, the MCP provides
opportunities for public involvement throughout the process.
Public involvement during the remedial response action process is undertaken to ensure that
the public is both informed of and involved in planning for remedial response actions. Public
involvement activities at a PIP site include preparation of a plan which identifies specific
activities that will be undertaken to address public concerns to the extent possible.
This document is a Revised Public Involvement Plan for the (Former) Everett Staging Yard
located at One Horizon Way in Everett. Section 2.00 contains background information on the
Site, including environmental assessment and public involvement histories. Section 3.00
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File No. 01.0171521.10
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explains how the remedial response action process addresses community concerns which have been raised during the
development of the Plan. Section 4.00 explains the proposed public involvement activities. Section 5.00 contains a
schedule for public involvement activities. Section 6.00 outlines the roles and responsibilities of those involved in
implementing the Public Involvement Plan. It also explains the procedures the Massachusetts Department of
Environmental Protection (MassDEP) will use to address situations if the agency receives complaints about the manner in
which the Plan is being implemented. Section 7.00 describes how the Plan will be revised in the future.
A draft of this revised Plan was presented by Wynn and GZA at a public meeting on February 17, 2016, at 6:30 PM in the
third-floor City Council Chamber at Everett City Hall, at 484 Broadway. The public comment period for this revised plan
ended on March 9, 2016. No comments were received.
2.00 SITE BACKGROUND
The following sections provide a description of the Site and surrounding area conditions and the Site's regulatory history.
A Site Locus Plan is included as Figure 1, and a Site Plan is included as Figure 2.
2.10 SITE DESCRIPTION AND HISTORY
The Site is approximately 32.5 acres, which includes approximately 24.2 acres designated as the land-side portion of the
Site, and an 8.3-acre portion of a cove adjacent to the Mystic River (the water-side portion of the Site). Access to the land-
side portion of the Site is limited by the presence of a chain-link fence with two gates; the main access gate is in the eastern
portion of the Site, along Horizon Way, and the second gate is located on the northern portion of the Site across an
extension of Horizon Way and accesses the adjoining commercial/retail property. There are currently no buildings at the
Site. The ground surface at the Site is generally either bituminous pavement (center), unpaved, or compacted coarse
gravel. The ground surface of the land-side portion of the Site is generally flat.
The Site is adjoined to the northeast by a vehicle maintenance and repair facility operated by the Massachusetts Bay
Transportation Authority (MBTA); to the southeast by properties along Alford Street, including a vacant commercial
building and facilities operated by the Boston Water and Sewer Commission (BWSC) and the Massachusetts Water
Resources Authority (MWRA); to the southwest by the Mystic River; and to the northwest by railroad tracks for the MBTA
Commuter Rail, beyond which are several large commercial/retail buildings associated with the Gateway Center.
The Site is located within the Boston Basin, a regional depression of bedrock consisting primarily of Cambridge Argillite, a
partially metamorphosed siltstone. Site conditions generally consist of fill over a variable sequence of naturally deposited
organic soils, sand and gravel, and silty clay over weathered rock and bedrock. Filling over naturally deposited materials
occurred in the area of the Site from the late 1800s through the early 1960s. More recent naturally deposited sediments
along the shoreline include sand, silt, and organics. Additional fill was placed across the Site in the mid-1990s in the form
of rock and fine-grained sediment ("tunnel muck") from the construction of the Deer Island Outfall.
Depth to groundwater ranges from approximately 4 to 10 feet. Groundwater at the Site flows generally toward the Mystic
River.
According to a Massachusetts Geographic Information System (MassGIS) map, the Site is not located in or within 500 feet
of a Zone II public water supply, a potentially productive aquifer, a Zone A surface water body, an Interim Wellhead
Protection Area, a protected wetlands habitat, or an Area of Critical Environmental Concern. Protected open space
associated with Gateway Park is located approximately 400 feet to the northwest of the Site.
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According to historic reports, the Site was occupied by the Cochran Chemical Company, the Merrimac Chemical Company,
and the Monsanto Chemical Company from the late 1800s until the late 1960s. These companies produced various acids
and dyes at the Site. The buildings on the land-side portion of the Site were razed in the 1970s.
The land-side portion of the Site has been used primarily as a material storage and staging yard since the mid-1990s, when
the tunnel muck was stockpiled on it.
2.20 ENVIRONMENTAL ASSESSMENT HISTORY
Investigations conducted between 1995 and the present have identified several contaminants in soil, groundwater, and
sediments at the Site, including metals, volatile organic compounds (VOCs), volatile petroleum hydrocarbon (VPH)
fractions and target analytes, semi-volatile organic compounds (SVOCs), extractable petroleum hydrocarbon (EPH)
fractions and target analytes, and polychlorinated biphenyls (PCBs). The sources of contamination at the Site include past
industrial operations, leakage from a former aboveground storage tank (AST), and the placement of contaminated fill. To
date, response actions conducted at the Site have been limited to assessment activities only. No remediation has been
conducted.
2.21 Environmental Assessment Conducted by Others
In 1995, Consulting Engineers and Scientists, Inc. (CES) of Lakeville, Massachusetts, performed a limited subsurface
investigation at the Site prior to it being used as the tunnel muck stockpile area. Arsenic and lead concentrations in soil
samples collected during the investigation exceeded the applicable MCP Reportable Concentrations (RCS-2). On
January 18, 1996, O'Donnell Sand and Gravel ("O'Donnell"), the property owner at the time, submitted a Release
Notification Form (RNF) to MassDEP, and MassDEP assigned RTN 3-13341 to the release. Later in 1996, the excavated
tunnel muck and rock were stockpiled and/or spread across the upland portion of the Site. In mid-1999, some of the
tunnel muck from the Site was used to cap a separate portion of the former Monsanto property, located across the railroad
tracks to the west of the Site, as part of the construction of the Gateway Center Mall, but a 1- to 7-foot thick layer of the
tunnel muck still remains at the Site.
In December 1996, CES conducted a Phase I Initial Site Investigation (ISI). Arsenic and lead concentrations in the soil
exceeded the applicable RCS-2 standards, and dissolved arsenic and lead in groundwater exceeded the RCGW-2 standard.
In January 1997, on behalf of O'Donnell, CES submitted a Phase I ISI and Tier Classification (Phase I report) to MassDEP.
The disposal site was classified as a Tier II disposal site. The Phase I report identified arsenic, lead, and low pH as
contaminants of concern (COCs). O'Donnell submitted a Phase II Extension Request to MassDEP in February 1999 and
sold the property to Mystic Landing, LLC ("Mystic Landing") in 2001.
In 2001, on behalf of Mystic Landing, Rizzo Associates (a predecessor to Tetra Tech Rizzo, Inc. of Framingham,
Massachusetts ("Tetra Tech Rizzo")) performed a limited subsurface investigation at the Site, including the collection of
soil and groundwater samples. The findings of the subsurface investigation were similar to CES's findings. Between 2005
and 2007, Tetra Tech Rizzo conducted additional subsurface investigations, including the collection and analysis of
additional soil, groundwater and sediment samples. The results of these investigations were also generally consistent
with those from previous sampling rounds.
In June and July 2007, Williams Environmental, Inc. (Williams) conducted a supplemental subsurface investigation at the
Site, including the excavation of 40 test pits and the collection and analysis of soil, groundwater and sediment samples.
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File No. 01.0171521.10
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As with previous analyses of environmental media conducted at the Site, lead and arsenic were the contaminants detected
at the highest concentrations and with the greatest frequency.
In December 2007, on behalf of Mystic Landing, Tetra Tech Rizzo submitted a Phase II Comprehensive Site Assessment
(Phase IICSA) and Tier II Extension Request to MassDEP, The Human Health Risk Assessment included in Tetra Tech Rizzo's
CSA concluded that there was No Significant Risk (NSR) and No Substantial Hazard associated with the current use of the
Site as a construction material storage yard or for similar uses that did not disturb the surficial layer of tunnel muck.
FBT Everett Realty, LLC (FBT) purchased the Site from Mystic Landing in October 2009. On February 11, 2010, GEI
Consultants, Inc. (GEI) of Woburn, Massachusetts submitted an Eligible Person Certification and Revised Tier Classification
Submittal to MassDEP on behalf of FBT. The disposal site remained a Tier II disposal site based on the Revised Tier
Classification Submittal and, pursuant to 310 CMR 40.0570, the deadlines for conducting response actions at the Site were
re-established.
In February 2012, GEI submitted a Phase II CSA based only on data previously developed by others because GEI's access
to the Site was reportedly denied by the Site occupant at the time. As part of the Phase II CSA, GEI conducted a Method 3
Risk Characterization which concluded that a Condition of NSR to human health existed at the Site for most of the then-
current uses of the Site, but that NSR could not be demonstrated for all foreseeable future Site uses.
Because of the delay in obtaining access to the Site, FBT filed a Notification of Delay with MassDEP, requesting that the
deadline for the Phase III - Remedial Action Plan (RAP) be extended from February 2013 to June 2013, and that the
deadline for the Phase IV - Remedy Implementation Plan (RIP) be extended from February 2014 to June 2014. FBT
subsequently filed a second Notification of Delay requesting that the Phase III RAP deadline be further extended to
September 2013, and the Phase IV deadline be extended to June 11, 2015.
GEI conducted additional soil and groundwater investigations in December 2012 and March 2013. These investigations
included the installation of a series of soil borings and monitoring wells on the land-side portion of the Site, and the
collection and analysis of soil and groundwater samples. The results of the additional investigations were generally
consistent with those previously documented. GEI also conducted a bench scale evaluation of in-situ
solidification/stabilization (ISS) of soils as a remedial alternative for certain areas of the Site. On August 30, 2013, FBT filed
a Phase III RAP for the Site outlining the selected Remedial Action Alternatives (RAA). The Phase III RAP identified three
areas of concern to be addressed to reach a Permanent Solution under the MCPon the land-side portion of the Site. These
areas are referred to as the A-5 Area; CES-3 Area and Low pH Area. The three areas are depicted on Figure 3, and are
described below. Additional assessment activities in these three areas conducted by GZA on behalf of Wynn are
summarized in Section 3.00.
• A-5 Area: The A-5 area is situated in the northern portion of the Site in the vicinity of previous exploration location
A-5, where lead and arsenic concentrations (216,000 and 153,000 mg/kg, respectively) were detected in a soil
sample obtained by Williams in 2007 from approximately 8 feet below ground surface. GEI and GZA conducted
several rounds of soil sampling in the A-5 area in an attempt to duplicate the original sample and to delineate the
impacts in this area. However, both GEI and GZA were unable to duplicate the elevated A-5 results. Arsenic
concentrations in the samples collected by GEI and GZA were lower than the initial A-5 analytical results by two
orders of magnitude or more, but many were above the Upper Concentration Limit (UCL) of 500 mg/kg. Similarly,
lead concentrations in the samples collected by GEI and GZA were lower than the initial A-5 analytical results but
many exceeded the UCL of 6,000 mg/kg. No specific source for the elevated arsenic and lead levels has been
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