2024 In-River Activities

The long-term monitoring program continued in 2024 and includes monitoring of the caps and monitoring PCB levels in water and fish. Long-term monitoring will continue in 2025.

Habitat features and plantings placed along the shoreline and on land in previous years were monitored again in 2024. This includes monitoring the condition of these features and plantings. Habitat monitoring will continue in 2025.

Planning efforts for cap repairs needed as a result of the March 2022 ice jam continued through the summer. Beginning in September, ice-jam event cap repair work resumed in the vicinity of the Route 131 Bridge under oversight of EPA. Details on the cap repair work are provided in EPA’s community update. A high-flow event caused by the remnants of Hurricane Debby occurred in August 2024 resulting in limited cap areas downstream of the Route 131 bridge requiring repair. Details are provided in the October Community Update. These repairs will begin immediately after the ice-jam event repairs and will continue into 2025.

EPA Five-Year Review

EPA has completed its first five-year review of the site. The purpose of five-year reviews is to ensure that cleanup remedies at Superfund sites (such as the Grasse River site) are working as intended and are protective of human health and the environment. The five-year review report is available on EPAs project webpage.

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