Brown Pond Neighborhood Site Investigation Summary Update Purchase/Ash/Laurel Streets, Danvers, MA

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1 Brown Pond Neighborhood Site Investigation Summary Update Purchase/Ash/Laurel Streets, Danvers, MA March 7, 2017 Town of Danvers CDM Smith Inc. Mass. Dept. of Environmental Protection United States Environmental Protection Agency Mass. Dept. of Public Health 1

2 Overview of Presentation Site history/background Site investigation results Exposure discussion Preventative measures 2

3 Site History/Background 71 PURCHASE STREET BROWN POND : Owned by Creese & Cook for fresh water source for tannery operations : Various owners/ undeveloped 3

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5 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 5

6 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 6

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8 55 Ash Street: Winding Brook Northern portion: Winding Brook Condominium buildings Southern portion: : Various tanneries processed animal hides Present: Undeveloped Presently owned by Winding Brook 8 Condo s and is undeveloped open

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10 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

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12 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. 12

13 Residential Property Investigation In November 2016, surface soils at the 13

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16 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 16

17 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: 17

18 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

19 QUESTIONS & COMMENTS Contact: Christopher Pyott MassDEP Northeast Regional Office 205B Lowell Street Wilmington, MA (978)

20 QUESTIONS & COMMENTS Contact: Richard Rodgers, Town Engineer Town of Danvers 1 Burroughs Street Danvers, MA (978) rrodgers@danversma.gov 20

21 For Health-Related Questions or Concerns Contact: Meg Blanchet Mass Department of Public Health Bureau of Environmental Health 250 Washington Street Boston, MA (617)