NOTICE OF INITIAL SITE INVESTIGATION AND TIER I CLASSIFICATION Residential Property 682 Union Street Marshfield, MA RELEASE TRACKING NUMBER 4-51264 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. 21E, § 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. As a result of this investigation, the site has been classified as Tier I pursuant to 310 CMR 40.0500. On January 7, 2026, Union St. Development, LLC, filed a Tier I Classification Submittal with the Department of Environmental Protection (MassDEP). To obtain more information on this disposal site, please contact William Kenney, Licensed Site Professional (LSP), at River Hawk Environmental, LLC, 511 West Grove Street, Suite 301, Middleborough, MA 02346, (781) 536-4639. The Tier I Classification Submittal and the disposal site file can be reviewed at MassDEP, 20 Riverside Drive, Lakeville, MA 02347; Main Phone: (508) 946-2700. Additional public involvement opportunities are available under 310 CMR 40.1403(9) and 310 CMR 40.1404. January 15 2026 LNEO0435942