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16, 18 and 20R Franklin St. Notice of Tier Classification NOTICE OF TIER CLASSIFICATION 16, 18, AND 20R FRANKLIN STREET AND PARCEL B OF 20 FRANKLIN STREET SALEM, MASSACHUSETTS RELEASE TRACKING NUMBER 3-36220 A release of oil and/or hazardous materials has occurred at this location, which is a disposal site as defined by M.G.L. c. 21 E, § 2 and the Massachusetts Contingency Plan, 310 CMR 40.0000. To evaluate the release, a Phase I Initial Site Investigation was performed pursuant to 310 CMR 40.0480. The site has- been classified as Tier II pursuant to 310 CMR 40.0500. On March 19, 2021 , Bay View Station, LLC filed a Tier II Classification Submittal with the Department of Environmental Protection (MassDEP). To obtain more information on this disposal site, please contact Jonathan Moore, Geolnsight, Inc., 1 Monarch Drive, Littleton, MA 01460, 978-679-1600. The Tier Classification Submittal and the disposal site file can be viewed at MassDEP website using Release Tracking Number 3-36220 at https://eeaonIine.eea.state.ma.us/portal#!/search/wastesite or at MassDEP, 205B Lowell Street, Wilmington, MA 01887, 978-694-3200. Additional public involvement opportunities are available under 310 CMR 40.1403(9) and 310 CMR 40.1404. \ § �§ �§z ~ e! k \ e u8 \\) E & # ■z s U k / / @ , 2§ §|k§ . Li §` §� ? | - ` `§®kk ` B � § | |� i f » Kq§�E ■ k «g 4 \ �(� �k � k� .0 |s§§� z % LL, §2 2 in \ R ! Q �!® 3 A as,e■ ■ In |3 mG z ; oz. % — , (i ~ � [2 2§ Lu $7 � ■ � � / m ƒ / � m i I ~ 3§ +0 \§ x . , ) 4 } }ƒ ` � § \ . \ \ ` 3. \ . ui ._ � --AM 12.0 SUMMARY AND CONCLUSIONS Data collected at the Property as part of the Phase I—Initial Site Investigation and Phase II Comprehensive Site Assessment are summarized below. • The Property consists of four parcels of land located in Salem, Massachusetts: 16 Franklin Street, 18 Franklin Street, 20R Franklin Street, and Parcel B of 20 Franklin Street. Together, the four parcels total 2.03 acres of land. A 1,028 square-foot, single-story building is located on the western side of the Property. • In the late 1800s,the southern portion of the Property contained a building associated with larger tannery complex to the south and southwest. The central and northern portions of the Property at that time were part of the North River. Between the late 1800s until the early 1950s, municipal waste was reportedly burned at the Property and the ash used to fill the central and northern portions of the Property. Demolition debris and incinerator ash from the burning of municipal waste were reportedly also used as fill at the Property.A gas station occupied the western portion of the Property in the 1950s.An automobile salvage and repair business operated at the Property from the early 1950s until 2020. The Property is currently vacant. • A protected open space, athletic field and a public park, abuts the Property to the north. The North River and associated tidal flats abut the Property to the east. Residences are located to the west and northwest across Franklin Street. Other receptors and priority resources areas are not located within 500 feet of the Property. The Property is not within a current or potential drinking water source area. • Assessment activities at the Property were conducted by SP Engineering in 2004, 2013, and 2020, and by GeoInsight in 2020 and 2021.Assessment activities included excavation of test pits, advancement of soil borings, installation of monitoring wells, and the analysis of soil and groundwater samples. • Analytical data indicates the primary COCs at the Property are PAHs, arsenic, lead, chromium, and zinc and secondary COCs are mercury and dioxin. COCs are predominantly located within the fill material at the Property. Fill material is present across the Property at thicknesses of six feet in the southern portion of the Property to 12 feet in the central and northern portions of the Property. Concentrations of VOCs and metals in the underlying native soil are below Method 1 standards. Detected concentrations of metals and VOCs in the January 2021 groundwater samples were below applicable Method 1 standards. March 15, 2021 GeoInsight Project 10053-000 Page 37 • Groundwater is generally located between three feet and five feet bgs. Groundwater gauging data collected on January 5, 2021 indicate that, on this date,the groundwater table was relatively flat, with slightly higher elevations in the central and southern portions of the Property. • A Method 3 Risk Characterization concluded that a condition of NSR is present under current and reasonably foreseeable Property uses for employees, construction workers, and trespassers. A condition of NSR is not present under reasonably foreseeable Property use as residential. The risk to future residents could be mitigated by the placement of a cap over the impacted soil and the implementation of an Activity and Use Limitation to ensure the maintenance of the cap. The risk characterization concluded that a condition of NSR exists with respect to public welfare, safety, and the environment. • Imminent Hazards are other conditions which would require Immediate Response Action activities were not identified at the disposal site. • Information included in this report was used to Tier Classify the disposal site by comparing conditions at the disposal site with the Tier I Criteria pursuant to 310 CMR 40.0520(2). Based upon that comparison, the disposal site is classified as Tier II. • Comprehensive Response Actions are necessary to evaluate the feasibility of capping impacted soil, as well as other potential remedial alternatives. March 15, 2021 GeoInsight Project 10053-000 Page 38