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Brown Pond Neighborhood Site Investigation Summary Update
Purchase/Ash/Laurel Streets, Danvers, MA
March 7, 2017
Town of DanversCDM Smith Inc.
Mass. Dept. of Environmental ProtectionUnited States Environmental Protection Agency
Mass. Dept. of Public Health
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Overview of Presentation
●Site history/background
●Site investigation results
●Exposure discussion
●Preventative measures 2
Site History/Background● 71 PURCHASE STREET – BROWN POND
• 1913-1983: Owned by Creese & Cook for fresh water source for tannery operations
• 1983-1986: Various owners/ undeveloped• 1986: Gifted to the Town of Danvers• 1986-Present: Owned by Town of
Danvers/undeveloped and fenced 3
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Brown Pond – Initial Investigation ● July 2011 – EPA collects soil reference samples, including near Brown Pond,
to characterize the geographic area associated with listing Creese & Cook as a Superfund Site; EPA shares data from this sampling effort with MassDEP.
● MassDEP reviews this data and finds:
- Arsenic identified above Massachusetts Contingency Plan (MCP) standards in surface soils
- Arsenic was the only contaminant identified at concentrations above applicable standards
● June 2014 – MassDEP issues Notice of Responsibility to Town of Danvers for exceedance of MCP standards
● June 2015 – Phase I Site Investigation submitted to MassDEP by Town of Danvers
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Brown Pond - Phase I Investigation ● Arsenic contamination in surface soils:
- Maximum concentration 225 mg/kg (XRF)
[Note XRF: X-ray Fluoroscence (Field Test)]
- Maximum concentration 260 mg/kg (Lab)
● Contamination extends to northern and eastern boundaries of Brown Pond
● No on-site source of arsenic identified
● Possible upstream sources from former tanneries6
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55 Ash Street: Winding Brook• Northern portion: Winding Brook Condominium buildings • Southern portion:
•1889-1921: Various tanneries – processed animal hides•1921-Present: Undeveloped – Presently owned by Winding Brook Condo’s and is undeveloped open space
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Other Possible Upstream Sources● H.A. Southwick Morocco/S. Everett Knapp Morocco –
Pine Street – Sanborn Maps – 1887 and 1903
● Clapp & Tapley Shoe Factory – Pine Street – Sanborn Maps – 1887 and 1903
● Hubbard B. Blake Sheep Skin Factory – Pine Street – Sanborn Map 1887
● E.A. Mudge & Company Shoe Factory/Royal Ceral Company – Pine Street – 1887 and 1903 10
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Supplemental Investigations● Investigations are complete on the 71 Purchase
Street Brown Pond property, and a Phase II Comprehensive Site Investigation Report will be prepared and submitted to MassDEP.
● No investigations have been conducted on the condo property located at 55 Ash Street due to property access issues.
● The investigation of the extent of arsenic in surface soils at residential properties surrounding Brown Pond has been initiated.
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Residential Property Investigation● In November 2016, surface soils at the following residential
properties were sampled:
‒ 65, 67, and 69 Purchase Street – Tested for arsenic ‒ 3 and 9 Laurel Street – Tested for arsenic‒ 57 Ash Street – Tested for arsenic and chromium
● Sample collection – hand auger – 0-1 foot – grid size varies from 20’ by 20’ to 40’ by 40’ – Tighter grid sampling in areas of higher contamination.
● Samples field screened via XRF, and 25% sent to laboratory for confirmation analysis.
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Exposure Discussion● Contact with soil containing arsenic at
elevated levels may pose a risk.● Samples were collected in the most accessible
top 1 foot of soil● Potential Exposure Pathways:
● Skin Contact ● Incidental Ingestion● Inhalation of Dust
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Exposure Discussion● MassDEP has identified levels of concern for arsenic
in soil in the MCP- Chemicals in soil at levels greater than or equal to the following could pose a potential health risk
over a 30 year period:Total Arsenic: 20 mg/kg
- Chemicals in soil at levels greater than or equal to the following could pose a potential health risk
over a period of 5 years:Total Arsenic: 40 mg/kg
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STEPS TO MINIMIZE EXPOSURE● Minimize Skin Contact with Soil and Wash Soil from
Skin Whenever Possible.
● MassDEP Recommends that this Soil not be Used to Garden Vegetables.
● Avoid Tracking Soil from Potentially Contaminated Areas into your Home.
● Minimize Activities Likely to Produce High Levels of Dust. 18
QUESTIONS & COMMENTS
Contact:Christopher Pyott
MassDEP Northeast Regional Office205B Lowell Street
Wilmington, MA 01887(978) 694-3353
QUESTIONS & COMMENTS
Contact:Richard Rodgers, Town Engineer
Town of Danvers1 Burroughs StreetDanvers, MA 01923
(978) [email protected]
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For Health-Related Questions or Concerns
Contact:Meg Blanchet
Mass Department of Public HealthBureau of Environmental Health
250 Washington StreetBoston, MA 02108
(617) [email protected]
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