Dec 29, 2025

A Cleaner Future for Mashapaug Pond

Mashapaug pond, which at times turns an artificial neon green, has been a no-go zone for years. Stormwater pollution flows here from roughly 70 industrial and commercial properties in the neighborhood. Every time it rains or snowpack melts, oil, grease, chemicals, and other sediment wash from nearby paved surfaces – around industrial facilities and a shopping center – into the pond.

Dec 22, 2025

Conservation Matters: Winter 2025

CLF is on the ground and in the courts, sustaining our clean energy progress. The stakes could not be higher. CLF will not relent until a just, affordable, and sustainable energy future becomes reality for all.

Magazine cover showing a small yellow cut-out house wrapped in a gray scarf. The house is not the actual size. Text reads Conservation Matters, a journal of Conservation Law Foundation. What's Fueling Your High Energy Bills.
Oct 10, 2024

CLF to Sue One of Largest Scrap Metal Companies in US for Polluting Waterways

Conservation Law Foundation has notified Sims Metal of its intent to sue for Clean Water Act violations at eight scrap metal facilities in Rhode Island, Connecticut, New York and Maryland. The company’s stormwater runoff regularly polluted nearby rivers and other waterways with toxic metals like lead, copper, and zinc.

Twisted metal in a pile outside at the New Haven, Connecticut, Sims Metal facility.
Jul 22, 2024

Barnstable Wastewater Plant Continues to Pollute Cape Cod Waters 

Conservation Law Foundation on Monday refiled its Clean Water Act lawsuit against the Town of Barnstable, where the town’s sewage treatment plant is polluting waters with nitrogen, leading to toxic algae outbreaks that destroy habitats and sicken people and pets. 

Aerial view of algae mats in Warren's Cove in Marston Mills, Massachusetts. Cape Cod.