70-92 Boston Street - Site Investigation Summary Report - Former Flynntan Site rac
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SITE INVESTIGATION SUMMARY REPORT
FORMER FLYNNTAN MANUFACTURING
COMPANY SITE
70-92 BGSTON STREET
SALEM, MASSACHUSETTS
Prepared for:
City of Salem
Salem,Massachusetts
Prepared by:
TRC Environmental Corporation
Boott Mills South
Foot of John Street
Lowell,MA 01 852
(978) 970-5600
May 2005
LETTER OF TRANSMITTAL RECEIVED
MAY 17 2005 9GGoplGUpppppp0
TRC DEPT.OF PLANNING&
' e °snioopoo�000ppppp0
Boott Mills South- 116 John Street C01%qMIIN►T1'DEVELOPMENT
Lowell, Massachusetts 01852
�-e tL .
Tel. No: (978) 970-5600
Fax No: (978) 453-1995
MAY 16, 2005
SEND To:
Rebecca Longley
Environmental Planner
Planning &Community Development
City of Salem
City Hall Annex
120 Washington Street—3ro Floor
Salem, Massachusetts 01970
SUBJECT: Site Investigation Summary Report
Former Flynntan Site —70-92 Boston Street
Salem, Massachusetts 01970
REMARKS:
• Enclosed please find two (2)copies of the above referenced report concerning site investigation
work at the former Flynntan site located at 70— 92 Boston Street in Salem, Massachusetts.
Please forward one (1) copy to the Environmental Protection Agency (EPA) Project Coordinator
for your Brownfields Program. 6�)
If you have any questions please contact JJ C an, Project Manager at(978) 656-3645.
CC:
Paul Arnold -TRC Environmental Corp.
TRC Environmental Corp. file
f
EXECUTIVE SUMMARY
TRC Environmental Corporation("TRC") has performed a Site Investigation at the former
Flynntan Manufacturing Company site located at 70-92 Boston Street in Salem, Massachusetts
(the"Site"). TRC performed this Site investigation on behalf of the City of Salem(the"City"),
as part of the City's Brownfields Pilot Program funded by a grant from the United States
Environmental Protection Agency("EPA"). This Site investigation was conducted to provide
information regarding the presence or absence of Site conditions that may require notification to
the Massachusetts Department of Environmental Protection("MADEP") or may effect Site
redevelopment. A scope of work for TRC's Site investigation activities was set forth in the
EPA-approved Revised Quality Assurance Project Plan("QAPP"), dated April 29, 2004.
Site investigation activities included a soil boring program conducted using GeoProbe direct-
push drilling technology. This work consisted of the installation of ten(10) soil borings with the
completion of six(6) of the borings as groundwater monitoring wells. The drilling program was
subsequently followed by the collection of groundwater samples from the newly installed wells.
Site activities also included the use of ground-penetrating radar("GPR') to determine the
presence of potential underground storage tanks ("USTs"), a hazardous materials survey and the
completion of a file review at the EPA. As a result of the above-referenced investigations, the
following was observed by TRC:
• The Site is underlain by layers of fine to coarse sand. Refusal occurred due to bedrock
and/or buried materials at soil borings SB-5, SB-6, SB-7, and SB-8 at depths ranging from
approximately 3.5 feet below grade("fbg") in SB-8 to approximately 7 fbg in SB-6.
• Depth to groundwater at the Site, as measured by TRC on December 28, 2004, ranged from
approximately 2.65 fbg in the northern portion of the Site to 20.43 fbg in the southern
portion. Based on the groundwater elevation survey, the groundwater table has a gradient of
approximately 0.044. Groundwater appears to flow to the north.
• Five areas were surveyed using GPR to locate underground anomalies at the Site. Two
probable USTs were located at the Site;,with an additional three nearby locations noted as
possible UST locations. The USTs were detected as being located in the upper asphalt-
covered parking area, northwest of the main building.
• A hazardous materials survey was conducted at the Site. Hazardous materials observed
included the following: three 275-gallon aboveground storage tanks ("ASTs"), two partially
filled 55-gallon drums labeled as containing methanol, and two empty 55-gallon drums in the
4-car garage area. Approximately fifteen 55-gallon drums were located in a stockpile on the
north side of the storage building annex, one containing lighting fixture ballasts, and another
labeled as containing isopropanol(contents frozen). The remaining drums were either
'empty, or contained smaller 0.5 to 5 gallon empty containers for antifreeze, grease,binding
adhesive, and motor oil. The storage building annex contained one empty 275-gallon heating
oil AST located adjacent to a second floor office area.
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• During the EPA file review, TRC was able to obtain reports regarding two previous
environmental investigations at the Site. Those reports included figures showing the
locations of USTs at the Site, as well as previous boring and monitoring well installations.
• Exceedances of applicable Massachusetts Contingency Plan("MCP")Reportable
Concentrations for S-1 category soil("RCS71") were detected in soil borings SB-I, SB-3,
SB-5 and SB-8. Exceedances were exhibited for: volatile organic compounds ("VOCs")in
SB-3, semivolatile organic compounds ("SVOCs") in SB-5 and SB-8, volatile petroleum
hydrocarbons ("VPH")in SB-1 and SB-3, and extractable petroleum hydrocarbons ("EPH")
in SB-1 and SB-8. These exceedances constitute a 120-day notification requirement to the
MADEP.
• Light non-aqueous phase liquid("LNAPL")was detected during groundwater sampling
conducted at MW-1. The detection of LNAPL triggered the MADEP's 72-hour notification
requirement. The MADEP was notified of the discovery of the LNAPL by the City of Salem
on December 30, 2004. The Site was has been assigned Release Tracking Number("RTN")
3-24618 by the MADEP and as a result, an Immediate Response Action("IRA') Plan has
been prepared and submitted to the.MADEP in order to determine the nature and extent of
the LNAPL release.
• VPH analytes (C9-C12 aliphatics) were detected in groundwater at groundwater monitoring
well ("MW") MW-3 at a level exceeding the MCP Reportable Concentration for GW-2
category groundwater ("RCGW-2"). No other constituents were detected in Site
groundwater above their respective RCGW-2 standard.
Based on the reportable concentrations exceedances in soil and groundwater as noted above,
TRC recommends that the MADEP be notified within 120 days of the Site owner's knowledge
.of the RC exceedances.
TRC recommends the removal and appropriate disposal of the 55-gallon drums located at the
Site.
TRC recommends the investigation of the five potential USTs located in the upper asphalt.
parking area at the Site. Test pitting at each suspected tank location should be conducted in
order to confirm the existence of each UST. Should tanks be present, a survey of the tank
interiors should be conducted to determine their contents, if any. After the UST inspection, the
tanks should be decontaminated and subsequently excavated and removed from the Site. Prior to
off-site removal, it is recommended that the tanks be thoroughly inspected for pitting,
perforations or other evidence of possible leakage. Confirmatory soil sampling of each tank
grave should then be conducted to evaluate the quality of tank grave soil. The above referenced
UST investigation has already been proposed to the MADEP in the requisite IRA Plan.
TRC recommends that the previously installed groundwater monitoring wells (MW-1 and MW-2
as indicated in the 1996 SP Engineering, Inc. report) be located and inspected for structural
integrity as well as yield capability. Should the wells be determined to produce representative
L2005-115
samples of Site groundwater, it is recommended that samples be collected and analyzed for
VOCs, SVOCs, VPH and EPH.
TRC further recommends that additional soil borings and groundwater monitoring wells be
installed via GeoProbe across the Site in order to assess the LNAPL release, the current MCP
reporting conditions, and to address the previously unknown possible UST locations.
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TABLE OF CONTENTS
1.0 INTRODUCTION........................................................................................................... 1-1
1.1 Objective.........................................................:............................................................1-1
1.2 Background...................................................................................................................1-1
i 1.3 Potential Source Areas............. .. 1-4
.....................:............................................................
1.3.1 Previous Site Industrial Uses...............................................................................1-4
1.3.2 Filled Areas.......................................................................................................... 1-4
1.3.3 Underground Storage Tanks (USTs) .....................
1.3.4 Subsurface Vault.................................................................................................. 1-6
1.3.5 Stormwater Catch Basin...................................................................................... 1-6
1.3.6. Trenches, Raceways, and Sumps....................................................:.................... 1-6
1.3.7 Former Transformer Pad...................................................................................... 1-6
1.3.8 Drums.................................................................................................................... 1-6
1.3.9 Stained Soils......................................................................................................... 1-6
1.3.10 Site Groundwater.................................................................................................1-7
2.0 TECHNICAL APPROACH.....................................................................................:........2-1
2.1 EPA File Review..........................................................................................................2-1
2.2 Geophysical Survey.....................................................................................................2-2
2.3 Hazardous Material Survey
2.4 Soil Boring Program....................................................................................................2-3
2.5 Groundwater Sampling................................................................................................2-7
2.6 Location and Elevation Survey....................................................................................2-7
2.7 MCP Reporting Requirements.....................................................................................2-7
3.0 RESULTS OF INVESTIGATION .........3-1
.........................................................................
3.1 Subsurface Conditions.................................................................................................3-1
3.2 Results of Geophysical Survey
' 3.3 Nature and Extent of Contamination
3.3.1 Soil.......................................................................................................................3-2
3.3.2 Groundwater........................................................................................................3-6
3.4 Data Usability Assessment..........................................................................................3-6
4.0 CONCLUSIONS............................................... .........4-1
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5.0 RECOMMENDATIONS.................................................................................................5-1
TABLES
Table 1-1: Areas of Concern......
Table 2-1: Summary of Samples Collected and Chemical Analytical Parameters.....................2-5
3-1
Table 3-1: Monitoring Well Construction/Groundwater Elevation} Data............................••.....3-4 Table 3-2: Soil Analytical Results..............................................................................................
Table 3-3: Groundwater Analytical Results
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Site Investigation Summary Report 1 May 2005
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FIGURES
Figure 1-1: Site Location Ma ............................... 1-2
Figure 1-2: Site Plan............'....:.....
Figure.2-1: Boring and Monitoring Well Sampling Location Plan.........................................2-4
Figure 3-1: Groundwater Elevation Contours for Sampled Monitoring Wells......................3-3
APPENDICES
Appendix A EPA File Review Reports
Appendix B Geophysical Survey Reports
Appendix C Soil Boring Logs and Well Construction Diagrams
Appendix D Analytical Data Reports
Appendix E Data Usability Assessment
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Site Investigation Summary Report 11 May 2005
L.2005-115
1.0 INTRODUCTION
1_1 Objective
TRC Environmental Corporation("TRC")has performed a Site investigation at the former
Flynntan Manufacturing Company Site located at 70-92 Boston Street in Salem,Massachusetts
(the"Site"). TRC performed this site investigation on behalf of the City of Salem(the"City"),
as part of the City's Brownfields Pilot Program funded by a grant from the United States
Environmental Protection Agency("EPA").- This site investigation was conducted to provide
information regarding the presence or absence of Site conditions that may require notification to.
the Massachusetts Department of Environmental Protection("MADEP")or may affect Site
redevelopment. A scope ofwork for TRC's Site investigation activities was set.forth in the
EPA-approved Revised Quality Assurance Project Plan("QAPP"), dated April 29, 2004.
1.2 Background
Figure 1-1 shows the location of the Site in Salem, Massachusetts. Figure 1-2 ("Site Plan")
depicts.the Site layout including general features.
The Site is currently owned by the City of Salem. The Site is approximately 1.9 acres in size and
is bordered to the south by Boston Street and commercial property(Dunkin' Donuts, and to the
north by Goodhue Street. The Site currently contains four separate, vacant buildings, three of
which are enclosed by fences with locking gates, and the fourth securely locked. Available
records indicate the site was historically occupied by commercial and manufacturing operations
from prior to 1900 until approximately 1999. Flynn and Sons operated a leather tannery on site
from approximately 1922 until approximately 1988. Based on an interview with Thomas St.
Pierre of the City of Salem Public Property Department during the preparation of an October
2001 Phase I Environmental Site Assessment("ESA")by TRC, small commercial operations
took place on the Site until 1999, including a small metals recycling-business.
Site buildings include the main factory building, the main factory storage annex, an additional
j storage building, and a 4-car garage/storage shed. The main entrance to the Site is located on
Boston Street..Parking areas and secondary entrances are located on the northwest, southeast
and the northeast portions of the Site. North of the main factory building is a built-up vegetated
area reportedly filled with materials generated from the demolition of a former Site building
located in the immediate vicinity. The building was reportedly demolished in the 1990s. No
additional information was available regarding the building demolition.
' The area surrounding the Site is comprised primarily of commercial and residential properties.
The North River, an inlet to Salem Harbor,is located approximately %2 mile northeast of the Site.
A feeder canal(Strongwater Brook)to the North River runs east to west approximately 500 feet
north of the Site. Salem's downtown center is located approximately 3/4 miles east of the Site.
Because of its prime location, the City of Salem plans to redevelop the Flynntan property with
new buildings consisting of mixed-use residential and retail spaces that will serve as part of a
revitalized corridor representing the"entrance" to the City.
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Site Investigation Summary Report 1-t May 2005
L2005-115
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1-92 BOSTON
SITE LOCATION
1.3 Potential Source Areas
Table 1-1 presents a list of potential contaminant source areas that were identified at the Site.
These source areas were identified in TRC's April 2004 QAPP,based on the findings from the
October 2001 ESA performed at the Site. The ESA included preliminary Site reconnaissance,
an electronic database search of the Site and surrounding properties, and a review of available
historical records for the Site.
During operation of the tannery, various chemicals and hazardous materials were used and stored
on Site in association with these processes. Former areas and structures in which hazardous -
materials were used and stored included leather-processing vats, dipping tanks, tumblers, settling
tanks, storage tanks, drums and floor trenches. Two underground storage tanks ("USTs'), one
20,000-gallon fuel oil and one 9,800-gallon UST with contents not reported, are recorded in Fire
Department records for the Site.
In September through November 1998, the EPA conducted a Removal Action at the Site to
address hazardous materials that were abandoned at the Site.and were considered a threat for
release. The EPA's removal activities included the removal of hazardous materials located in
drums and aboveground storage tanks ("ASTs") in the buildings, as well as the removal of
liquids and sludges present in several recessed drainage trenches and pits located below the
floors of the buildings. Wastes removed during the EPA Removal Action were disposed off Site.
The reported on-site USTs were not addressed as part of the 1998 EPA Removal Action.
During an August 2001 Site reconnaissance TRC observed wood, glass, and metal debris on Site
including a large pile of light ballasts. TRC observed approximately 20 empty drums located in
several areas around the Site. An underground structure,referred to in EPA Removal Program
documents as a"sealed concrete vault", is located northwest of the main building. The contents
and/or former use of this vault structure are unknown. TRC also observed stained soils in two
locations at the Site. A stormwater catch basin, as well as numerous raceways and sumps, are
located on Site. A former transformer pad is located on the north side of the storage building
annex.
1.3.1 Previous Site Industrial Uses
Source areas associated with the Site's former use as a tannery and leather manufacturing facility
i and/or metals recycling and mixed commercial uses have been summarized in previous studies
as well as the current QAPP. The sources areas are also listed below.
1.3.2 Filled Areas
North of the main factory building is a built-up vegetated area reportedly filled with materials
generated from the demolition of a former Site building located in the immediate vicinity. The
building was reportedly demolished in the 1990s. No additional information was available
regarding the building demolition.
Site Investigation Summary Report 1-4 May 2005
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Table 1-1:
Areas of Concern
Former Flynntan Manufacturing Company Site
70-92 Boston Street, Salem, Massachusetts
Potential Potential Contaminants of
No. Source Location/Description Media Concern
Area Impacted
VOCs,VPH, EPH,
Tannery and leather manufacturing
Previous Site SVOCs, PCBs, Metals,
1 industrial operations on Site(1922-1988). Soil, cyanide, Cr+6
Metals recycling business and Groundwater
uses mixed commercial uses 1988-1999.
2 Filled areas Former Site building area. Soil, VPH, EPH, SVOCs,
Groundwater PCBs,Metals
Western portion of Site,loading VOCs,VPH,EPH,
dock on south side of main Cr OCs, Metals,cyanide,
3 USTs building, and east of storage Soil,
building annex. Contents,tank Groundwater
condition and size,all required
further evaluation.
Subsurface Northwest portion of Site,west of Soil,
VOCs,VPH,EPH,
4 Vault paved parking area. Groundwater C VOCs,Metals,cyanide,
VOCs,VPH,EPH,
5 Stormwater Catch Basin South of storage building. Soil Groundwater SVOCs, PCBs,Metals,
cyanide, Cr
Trenches, Throughout floors of storage Soil VOCs,VPH, EPH,
6 raceways, building and main building. Groundwater SVOCs, Metals,cyanide,
and sumps Cr
Former PCBs
7 transformer North side of storage building. Soil
ad
Empty drums located in several VOCs,VPH,EPH,
8 Drums areas around the Site;potential for Soil, SVOCs, PCBs, Metals,
past leaking of wastes or chemicals. Groundwater cyanide, Cr
Formerly in northern storage VOCs,VPH,EPH,
9 Stained soils buildingand surface soils west of Soil, SVOCs,PCBs,Metals,
single car garage. Groundwater cyanide, Cr+6
Impacts due to potential discharges VOCs,VPH, EPH,
Site from belowground structures, SVOCs, Metals,cyanide,
10 Groundwater +6
Groundwater including USTs, sumps, and Cr
drainage conduits.
VPH — Volatile Petroleum Hydrocarbons EPH — Extractable Petroleum Hydrocarbons
Cr+6 — Hexavalent Chromium VOCs — Volatile Organic Compounds
USTs — Underground Storage Tanks PCBs — Polychlorinated Biphenyls
PAH — Polycyclic aromatic hydrocarbons
Site Investigation Summary Report 1-5 May 2005
L.2005-115
1.3.3 Underground Storage Tanks (USTs)
During the August 2001 Site inspection conducted for the ESA, TRC personnel noted that
potentially, four USTs could exist on Site,based on visual observation: Salem Fire Department
records indicated the presence of a 10,000-gallon fuel oil•UST, and another 9,800-gallon UST
with unknown contents. No additional information was available regarding the condition of the
tanks,or.any removal actions.
1.3.4 Subsurface Vault
A"sealed concrete vault'was noted by the EPA Removal Action conducted at the Site to the
northwest of the main building. The contents are unknown, and it therefore represents a
potential source area.
1.3.5 Stormwater Catch Basin
A stormwater catch basin was observed to the south of the storage building, in the area of the
Goodhue Street property egress, during the August 2001 Site reconnaissance. The potential for
stormwater run-off or inadvertent spills during previous Site operations render this a potential
source area.
1.3.6 Trenches,Raceways, and Sumps
During the August 2001 Site reconnaissance, numerous trenches,raceways, and sumps were
observed in the storage-and main buildings. The trenches, raceways, and sumps were most likely
used as part of the tanning and leather manufacturing activities at the Site, and represent a
potential source area.
1.3.7 Former Transformer Pad
A former transformer pad was observed on the north side of the storage building during the
August 2001 Site reconnaissance. This represents a potential source area due to the possibility of
PCB.contamination. Location could not.be confirmed during this Site investigation.
1.3.8 Drums
Approximately 20 abandoned drums were observed at the Site during the August 2001 Site
reconnaissance, and represent a potential source area due to possible inadvertent discharges.
1.3.9 Stained Soils
During the August 2001 Site reconnaissance, stained soils were noted in the storage building, as
I well as on surface soils observed to the west of the single-car garage. The staining represents a
potential for past discharges and/or leakage at the Site, and therefore a potential source area.
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Site Investigation Summary Report 1-6 May 2005
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1.3.10 Site Groundwater
Groundwater at the Site potentially could have been impacted by past releases from the USTs,
trenches, raceways, sumps,reported soil staining, abandoned drums at the Site, the stomwater
catch basin, and/or the unknown subsurface vault.
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Site investigation Summary Report 1-7 May 2005
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2.0 TECHNICAL APPROACH
This section describes the activities performed as part of this project. Unless otherwise specified,
all work was performed in accordance with the EPA-approved Revised QAPP (dated April 29,
2004) for the City of Salem Brownfields Pilot Program.
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2.1 EPA File Review
On March 2, 2005, TRC reviewed the EPA Site File which was previously unavailable to TRC
during the preparation of the October 2001 ESA and the April 29, 2004 Revised QAPP,
Relevant sections of these reports are provided in Appendix A. The following chronology
presents the information obtained at the time of the March 2, 2005 file review:
• In November 1988, an environmental investigation was conducted by SP Engineering, Inc. of
Salem, Massachusetts for John Flynn& Sons. Pertinent information regarding the
environmental condition of the Site is provided below:
- A "barrel inventory", and a review of process activities and present waste handling
activities were conducted during the investigation. Approximately ten to twenty drums
were identified in the main building as "requiring disposal".
- A total of 8 "Test Holes"were drilled at the Site. Two Test Holes were reported as
"containing No. 6 fuel oil". Test Hole#1 is reported as containing "free flowing" No. 6
fuel oil noted from 13.5 to 20 feet below ground surface ("bgs"). In addition,
contamination was encountered in Test Hole 6 at 11 feet bgs, but drilling was stopped
due to lack of daylight. Test Hole#2, located near Goodhue Street and adjacent to a
reported solvent tank at the Site,was listed as "contaminated with solvents". Test Holes
7 and 8 were drilled in the vicinity of Test Hole #2, and were noted as containing
detectable volatiles.
• In 1996, an environmental investigation was conducted by SP Engineering, Inc. on behalf of
Mr. Jan Exman, of Pownal Development Corporation. During this investigation three soil
borings were installed, two of which were converted to monitoring wells. In addition, sludge
samples were collected from the "tanning and coloring" areas.
- A soil sample collected from groundwater monitoring well MW-2, located near the
20,000 gallon UST, reported"worst-case"detection of 101,000 milligrams per kilogram
("mg/kg") for total petroleum hydrocarbons ("TPH"). The depth of the sample was not
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reported.
The report contained a scaled figure depicting the location of the 1988 soil borings, along
with the new soil boring and two wells installed as part of this study. In addition, the
figure indicates the locations of a I0,000-gallon and a 20,000-gallon No. 6 fuel USTs,
and a 6,000-gallon"solvent"UST. The 10,000-gallon UST was labeled as"abandoned".
This information was not available to TRC prior to the implementation of the ground
Site Investigation Summary Report 2-1 May 2005
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I penetrating radar("GPR") survey conducted at the Site as part of this Phase H
investigation described below.
2.2 Geophysical Survey
On May 26 and August 30, 2004, Hager GeoScience, Inc.,of Woburn,Massachusetts,conducted
an on-Site geophysical survey. During this survey, GPR techniques were used to search for
evidence of subsurface anomalies suspected below the Site based on past Site use. These areas
included the Site loading dock area, the lower asphalt covered parking area, the former Site
building location, the upper asphalt covered parking areas, and the remaining northern portions
of the Site. The areas subject to the GPR survey are provided on Figure 2-1.
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GPR utilizes a mobile radar antenna unit to propagate and receive electromagnetic signals. The
radar waves are transmitted into the subsurface by the antenna as it is moved across the Site. As
the radar waves travel into the subsurface, they reflect differently off various materials,and
corresponding signals are bounced back to the receiver. The reflections from contrasting
materials (e.g., soils versus metal objects)result in contrasting signals that can be recorded and
interpreted.
Five.(5) areas were traversed on the Site using the GPR. These areas_were selected based on
historical Site data to retrieve potential underground targets. Traverse grids were developed
using available Site sketches showing the building and other Site features. The survey areas are
shown on Figure 2-1 and the geophysical survey reports are provided in Appendix B. Results of
the geophysical survey are discussed in Section 3.2.
2.3 Hazardous Material Survey
The hazardous material survey was conducted on February.9, 2005. The results of the survey are
described below.
The 4-car garage building is located along Goodhue Street and is constructed slab-on-grade. The
one-story structure is divided into three sections, which consist of two two-car bays and a small
utility room. The utility room com risin the southern portion of the garage,was previously
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inaccessible by TRC personnel during the preparation of the October 2001 Phase I ESA as well
as the April 29, 2004 QAPP. During the February 9, 2005.visit, the utility room door,fronting
on Goodhue Street,had been dislodged from its lock, allowing access into the area. The room
contained three 275-gallon aboveground storage tanks ("ASTs"), two of which appeared to have
been used for heating oil storage by its moored positioning and transfer piping still intact. One
tank however was observed unsecured and placed on its side with transfer piping removed.
Moderate petroleum staining was noted on the floor in the vicinity of this tank.
Two partially filled 5 5=gallon.drums, labeled as containing methanol, were observed in the
northernmost car bay. In addition,two empty 55-gallon drums were observed in the area.
Moderate floor staining, typical of use as a garage, was noted in the northernmost car bay. No
floor drains or cracks/perforations were observed on the concrete floor. No other hazardous
materials were noted in the 4-car garage.
Site Investigation Summary Repoit 2-2 May 2005
L2005-1t5
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The lower asphalt covered parking area, located between the main building and the storage
building with egress provided by Goodhue Street,has approximately fifteen 55-gallon drums
located in a stockpile on the north side of the storage building annex. Recent significant
snowfall and subsequent freezing temperatures would not allow the unobstructed view of lidless
.drum contents nor the immediate vicinity surface soils, if any. One drum containing lighting
fixture ballasts was observed. A second drum was labeled as containing isopropanol,though the
container was open and the contents appeared to be frozen. Approximately thirteen 55-gallon
drums were also observed, either empty or with smaller 0.5 to 5 gallon empty containers for
antifreeze, grease,binding adhesive, and motor oil placed inside them.
The storage building annex contained one empty 275-gallon heating oil AST located adjacent to
a northeastern second floor office area. No unusual staining or odors were observed within the
vicinity of the AST. No other hazardous materials were noted in the storage building annex.
The main factory building contains two floors. The lower floor is primarily empty and formerly
contained the main leather and tannery.manufacturing operations for the Site. The upper floor
appears to be currently used as a municipal storage area. The upper floor contained
approximately twenty-five computer monitors, over fifty television sets, and white goods
(approximately thirty stoves,washers, dryers, and/or refrigerators).
2.4 Soil Boring Program
TRC's soil boring program was performed on November 17 and 18, 2004. Figure 2-1 shows the
locations of the soil borings that were advanced during this project. Table 2-1 lists the samples
that were submitted for laboratory analysis. Appendix C contains the soil boring logs and well
construction diagrams.
The program consisted of the placement of ten soil borings advanced via Geoprobe direct-push
drill rig. One-inch diameter polyvinyl chloride("PVC") monitoring wells were installed in six
of the borings. Borings were completed to depths ranging from approximately 3.5 feet below
ground surface("bgs") at SB-8 to approximately 28 feet bgs at SB-2.
For each soil boring, continuous 5-foot acetate-lined cores were collected from the ground
surface to the groundwater interface. Soil samples were screened in the field for the presence of
volatile organic compounds ("VOCs")using a RAE Systems MutliRAE Plus multi-gas meter
equipped with a photoionization detector("PID"). Samples exhibiting elevated PID readings or
other indications of contamination were submitted to a Massachusetts-certified laboratory for
testing as set forth in the project QAPP. Soil samples as well as Site worker breathing zones
were also monitored for hydrogen sulfide. Hydrogen sulfide concentrations were not detected
during the soil boring program.
i
j Site Investigation Summary Report 2-3 May 2005
L2005-115
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The proposed monitoring well to be installed at SB-5 was not completed due to Geoprobe refusal
at approximately 5 feet bgs in the area as well as limited building access. Soil sampling at SB-7
was limited due to poor recovery. The sample was analyzed for PCBs due to close proximity to
existing drum stockpile, one of which was uncapped, on its side and contained what appeared to
be capacitors or light ballasts. The VOC soil sample was not collected at boring SB-2 due to a
lack of PID concentrations and its relative upgradient location. Cyanide was also not sampled at
SB-2 due to its relative upgradient location.
Table 2-1 presents a list of soil samples collected as well as the chemical analyses performed on
each sample.
2.5 Groundwater Sampling
Figure 2-1 depicts the groundwater monitoring wells installed by TRC. The conversion of soil
borings to monitoring wells included the installation of a one-inch outside diameter PVC
monitoring well into the boring upon completion.
On December 28 and 29, 2004, TRC returned to the Site to collect groundwater samples.
During initial groundwater elevation measurements, approximately 1.49 feet of separate phase
hydrocarbon("SPH")was encountered in monitoring well MW-1. As required by Massachusetts
Contingency Plan 310 CMR 40.0300, the City notified the MADEP of the SPH in MW-1 on
December 30, 2004. The MADEP assigned the Site the Release Tracking Number("RTN") 3-
24618 for the release.
SPH was not observed in the remaining groundwater monitoring wells. In addition, groundwater
monitoring well MW-4 was observed to be dry.
Table 2-1 presents a list of groundwater samples collected as well as the chemical analyses
performed on each sample. Well installation and sampling activities were conducted in
accordance with the EPA-approved QAPP.
2.6 Location and Elevation Survey
On February 9, 2005, TRC performed an elevation survey of the newly installed monitoring
wells to approximate the direction of groundwater flow at the Site. Well casing elevations and
groundwater table elevations were measured relative to arbitrary benchmark elevation(spray-
painted spot) of 100 feet, located on Goodhue Street, approximately 4 feet due east of the
southeastern corner of the site 4-car garage building.
.2.7 MCP Reporting Requirements
TRC analyzed the sampling data together with field observations to evaluate the need for
reporting of the results to the MADEP. The results of chemical analyses were compared with
applicable Massachusetts Contingency Plan(MCP; 310 CMR 40.0000)Reportable
Concentrations for Category S-1 ("RCS-1") soil and Reportable Concentrations for Category
GW-2("RCGW-2")groundwater.
i
Site Investigation Summary Report 2-7 May 2065
L.2005-115
3.0 RESULTS OF INVESTIGATION
3.1 Subsurface Conditions
Appendix C contains copies of the soil boring logs and well construction diagrams for the
borings and monitoring wells that were completed at the Site as part of TRC's Phase H
investigation. The subsurface descriptions provided below are based on observations made
during the soil boring program completed as part of this Phase H investigation.
1
The Site is underlain by layers of fine to coarse sand. Refusal occurred due to bedrock and/or
buried fill material at borings SB-5, SB-6, SB-7, and SB-8 ranging in depth from 3.5 feet bgs in
SB-8 to seven feet bgs in SB-6.
Depth to groundwater at the Site, as measured by TRC on December 28, 2004, ranged from
approximately 2.65 to 20.43 feet bgs. Table 3-1 presents a summary of monitoring well
construction and groundwater elevation data for TRC's wells. Figure 3-1 depicts the direction of
groundwater flow based on these data.
Table 3-1:
Monitoring Well Construction/Groundwater Elevation Data
Former Flynntan Manufacturing Company Site
70-92 Boston Street
Salem, Massachusetts
Elevation of
Monitoring Depth of Well PVC Depth to Groundwater
Well Screen Riser Pipe Groundwater Depth to Elevation
Designation (feet) (feet) (feet) SPH (feet) (feet)
Monitoring Wells Installed by TRC on November 17& 18,2004
MW-1 5 — 15 97.70 8.30 6.81 90.67(1)
MW-2 18 —28 115.32 20.43 N/A 94.89
MW-3 5 — 15 100.52 5.61 N/A 94.91
MW-4 12.5 —22.5 not measured DRY N/A' N/A
MW-5 2-7 101.15 2.65 N/A 98.50(2)
MW-6 5— 15 101.20 7.50 N/A 93.70
i
Notes:
N/A- Not applicable; SPH not encountered.
(1)- Groundwater elevation calculated using a specific gravity of 0.85 for the SPH.
(2) - Not used in groundwater contouring.
Based on groundwater elevation survey conducted on February 9, 2005, the groundwater table
has a gradient of approximately 0.044 and is interpreted to flow to the north, as shown on Figure
3-1.
Site Investigation Summary Report 3-1 May 2005
L2005-115
{
3.2 Results of Geophysical Survey
Five areas were surveyed using GPR to locate underground anomalies at the Site. Two probable
USTs were located at the Site; with an additional three nearby locations noted as possible UST
locations. All five locations were at the upper asphalt-covered parking area, northwest of the
main building. The geophysical survey reports are provided in Appendix A.
i 3.3 Nature and Extent of Contamination
Appendix D contains copies of the laboratory analytical reports.
3.3.1 Soil
Table 3-2 presents a summary of the results of chemical analyses for soil samples collected at the
Site. Note that this table lists only those analytes that were detected in the samples collected.
Volatile Organic Compounds(VOCs) 1,3,5-Trimethylbenzene was detected at a concentration
exceeding the RCS-1 standard in soil sample SB-3. No other VOCs were detected in excess of
their respective MCP RCS-1 standard during this investigation.
Volatile Petroleum Hydrocarbons (VPH): C9—Clo aromatics were detected at concentrations
exceeding the applicable MCP RCS-1 standard in soil boring SB-1. C9-Clo aromatics and Cs-C12
aliphatics were detected at concentrations exceeding their respective MCP RCS-1 standard in
soil boring SB-3. No other VPH constituents were detected in Site soil samples at concentrations
above.their respective MCP RCS-1 standard.
Extractable Petroleum Hydrocarbons(EPH): C9-C18 aliphatics, C19-C36 aliphatics, Cit-C22
aromatics, and 2-methylnapthalene were detected at concentrations exceeding their respective
MCP RCS-1 standard in soil boring SB-1. Benzo(a)anthracene, benzo(a)pyrene,
benzo(b)fluoranthene, and indeno(1,2,3-cd)pyrene were detected at concentrations exceeding
their respective MCP RCS-1 standard in soil boring SB-8. No other EPH constituents were
detected in excess of their respective MCP RCS-1 standard in Site soil samples.
Semivolatile Organic Compounds(SVOCs): 2-Methylnapthalene was detected at a
concentration exceeding the applicable MCP RCS-1 standard in soil boring SB-1.
Benzo(a)anthracene,benzo(b)fluoranthene,benzo(a)pyrene; and indeno(1,2,3-cd)pyrene were
detected at concentrations exceeding their respective MCP RCS-1 standard in soil borings SB-5
and SB-8. No other SVOC constituents were detected in excess of their respective MCP RCS-1
standard in Site soil samples.
Polychlorinated Biphenyl(PCB)Aroclors: PCB Aroclors were not detected in excess of their
respective MCP RCS=1 standard in Site soil samples.
Metals: As indicated in Table 3-2, no metals were detected in excess of their respective MCP
RCS-1 standards in Site soil samples.
I
Site Investigation Summary Report 3-2 May 2005
L.2005-115
3.3.2 Groundwater
Table 3-3 presents a summary of the results of chemical analyses for groundwater samples
collected at the Site. Note that this table lists only those analytes that were detected in the
samples.
Volatile Organic Compounds(VOCs): No VOCs were detected in excess of their respective
MCP RCs for category GW-2 groundwater("MCP RCGW-2") standards during this
investigation.
Volatile Petroleum Hydrocarbons (VPH): C9-C12 aliphatics were detected in MW-3 at a level
exceeding the applicable MCP RCGW-2 standard. Other target VPH analytes were detected at
concentrations below their respective MCP RCGW-2 standards. No VPH constituents were
detected in MW-5 or MW-6. _
Extractable Petroleum Hydrocarbons (EPH): No EPH constituents were detected in excess of
their respective MCP RCGW-2 standards during this investigation.
Semivolatile Organic Compounds (SVOCs): No SVOC constituents were detected in excess of
their respective MCP RCGW-2 standards during this investigation.
Polychlorinated Biphenyl (PCB) Aroclors: No PCB Aroclors were detected in excess of their
respective MCP RCGW-2 standards during this investigation.
Metals: Excluding a low level of chromium detected in MW-5,below its respective MCP
RCGW-2 standard, no metals were detected in Site groundwater.
3.4 Data Usability Assessment
TRC conducted a data usability assessment of the data. In general,the precision, accuracy and
completeness of the data were considered acceptable for the purposes of this project. The results
of the data usability assessment are provided in Appendix E.
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Site Investigation Summary Report 3-6 May 2005
L2005-115
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4.0 CONCLUSIONS
The results of TRC's Phase II investigative activities are as follows:
i
• The Site is underlain by layers of fine to coarse sand.- Refusal occurred due to bedrock
i and/or buried fill material at borings SB-5, SB-6, SB-7, and SB-8. Depth to groundwater at
the Site, as measured by TRC on December 28, 2004, ranged from approximately 2.65 to
20.43 feet below grade. Based on the groundwater elevation survey,the groundwater table
has a gradient of 0.044. Groundwater appears to flow to the north.
• Five areas were surveyed using GPR'to locate underground anomalies at the Site. Two
probable USTs were located at the Site,with an additional three nearby locations noted as
possible UST locations. The USTs were detected as being located in the upper asphalt-
covered parking area, northwest of the main building.
t • A hazardous materials survey was conducted of the Site. Hazardous materials observed
included the following: three 275-gallon aboveground storage tanks ("ASTs"),two partially
filled 55-gallon drums, labeled as containing methanol, and two empty 55-gallon dr uns in
the 4-car garage area. Approximately fifteen 55-gallon drums located in a stockpile on the
north side of the storage building annex, including a drum containing lighting fixture ballasts,
a drum labeled as containing isopropanol. The remaining drums were either empty,or were
filled with smaller 0.5 to 5 gallon empty containers for antifreeze, grease,binding adhesive,
and motor oil. The storage building annex contained one empty 275-gallon heating oil AST
located adjacent to a northeastern second floor office area.
• During the EPA file review, TRC was able to obtain information regarding two previous
environmental investigations at the Site.. Those reports included figures showing the
locations of USTs at the Site, as well as previous boring and monitoring well installations.
• For the VOC analysis, 1,3,5-Trimethylbenzene was detected at a concentration exceeding the
applicable MCP RCS-1 standard in soil sample SB-3. The VPH hydrocarbon range C9—Clo
aromatics was detected at concentrations exceeding the applicable MCP RCS-1 standard in
soil boring SB-1. C9-Clo aromatics and C9-C12 aliphatics were detected at concentrations
exceeding their respective MCP RCS-1 standard in soil boring SB-3.
i The EPH hydrocarbon ranges C9-C18 aliphatics, C19-C36 aliphatics, Cu-C22 aromatics, and
target analyte 2-methylnapthalene were detected at concentrations exceeding their respective
j MCP RCS-1 standard in soil boring SB-1.
For the SVOC analysis, 2-Methylnpathalene was detected at a concentration exceeding the
applicable MCP RCS-1 standard in soil boring SB-1. Benzo(a)anthracene,
Benzo(b)fluoranthene, Benzo(a)pyrene, and Indeno(1,2,3-cd)pyrene were detected at
concentrations exceeding their respective MCP RCS-1 standard in soil borings SB-5 and
SB-8.
Metals and PCB Aroclors were not detected in excess of their respective MCP
i
i
Site Investigation Summary Report 4-1 May 2005
L2005-115
f
RCS-I standards in Site soil samples.
• LNAPL was detected during.groundwater sampling conducted at MW-1. The detection of
LNAPL triggered the MADEP's 72-hour notification requirement. The MADEP was
notified of the discovery of the LNAPL by the City of Salem on December 30,2004. The
Site was has been assigned Release Tracking Number("RTN") 3-24618 by the MADEP and
as a result, an Immediate Response Action(`.`IRA") Plan has been prepared and submitted to
the MADEP in order to determine the nature and extent of the LNAPL release.
• C9-Cl2 aliphatics were detected in groundwater obtained MW-3 at levels exceeding the.MCP
RCGW-2 standard. Other VPH target analytes were detected at concentrations below their. _..
respective MCP RCGW-2 standards..No VPH constituents were detected in MW-S or MW-
6.
VOCs, EPH, SVOC, Metals, and PCB Aroclor constituents were not detected in excess of
their respective MCP RCGW-2 standards during this investigation.
1
t
J Site Investigation Summary Report 4-2 May 2005
L2005-115
I
5.0 RECOMMENDATIONS
The following recommendations are presented based on the results of TRC's Phase II
investigative activities:
• TRC recommends that based on the reportable concentrations in soil and groundwater as
noted in the Section 4.0, the MADEP be notified within 120 days of the Site owner's
knowledge of the RC exceedances.
• TRC recommends the removal and appropriate disposal of the 55-gallon.drams located at the
Site. -
• TRC recommends the investigation of the five potential USTs located in the upper asphalt
parking area at'the Site. Test pitting at each suspected tank location should be conducted in
order to confirm the existence of each UST. Should tanks be present, a survey of the tank
interiors should be conducted to determine their contents, if any. After the UST inspection,.
the tanks.should be decontaminated and subsequently excavated and removed from the Site.
Prior to off-site removal, it is recommended that the tanks be thoroughly inspected for
pitting,perforations or other evidence of possible leakage. Confirmatory soil sampling of
each tank grave should then be conducted to evaluate the quality of tank grave soil. The
above referenced UST investigation has already been proposed to the MADEP in the
requisite IRA Plan. .
• TRC recommends that the previously installed groundwater monitoring wells (MW-1 and
MW-2 as indicated in the 1996 SP Engineering, Inc. report)be located and inspected for
structural integrity as well as yield capability. Should the wells be determined to produce
representative samples of Site groundwater, it is recommended that samples be collected and
analyzed for VOCs, SVOCs, VPH and EPH..
• TRC further recommends that additional soil borings and groundwater monitoring wells be
installed via GeoProbe across the Site in order to assess the LNAPL release, the current MCP
reporting conditions, and to address the previously unknown possible UST locations.
Site Investigation Summary Report $-1 May 2005
L.2005-115