PFAS "forever chemicals" have been found in 13 bodies of water across Long Island, according to a new report that highlights the widespread reach of the contaminants in the region's waterways.

The findings, released by the Environment America Research & Policy Center, are based on PFAS monitoring data collected from rivers, lakes, streams and other surface waters between 2022 and 2024.

Researchers primarily used data from the Environmental Protection Agency's Water Quality Portal, supplemented by monitoring data from the nonprofit Waterkeeper Alliance.

“It’s unfortunate, but the more we test for PFAS, the more PFAS contamination we will find throughout Long Island’s groundwater and surface waters," said Adrienne Esposito, executive director of Citizens Campaign for the Environment.

"We know PFAS is contaminating groundwater, so it is inevitable that the PFAS will flow into lakes, rivers, streams, and the marine environment," Esposito said. "The real answer is to prevent PFAS contamination from continuing to enter our aquifer system by banning the toxic chemical from everyday products and commercial use.”

The report's authors noted that PFAS monitoring remains limited in many parts of the country, meaning the findings likely capture only part of the contamination present in U.S. waterways.

In New York, PFAS was detected in 93.3% of the 182 testing locations included in the study.

PFAS, which stands for per- and polyfluoroalkyl substances, are a group of human-made chemicals that have been linked in scientific studies to a range of potential health risks for people and animals.

The EPA says thousands of PFAS compounds exist and are used in a wide variety of consumer and industrial products, making their environmental and health impacts difficult to fully assess.

The Long Island locations identified in the report include: