Press Releases
Monthly boat sampling will take place at Lake Oneida and Thorn Run reservoirs; recreational boating remains prohibited
BUTLER, Pa. May 21, 2026) – Pennsylvania American Water began monthly water quality sampling by boat this week on the Lake Oneida and Thorn Run reservoirs to help ensure safe, high-quality and reliable drinking water for customers in Butler County.
The enhanced monitoring program allows the company to better understand changing conditions in the reservoirs, helping operators adjust treatment processes and maintain water quality for more than 20,000 customer connections served by these sources.
“This work helps us deliver the high-quality water our customers depend on every day,” said Jake Gentile, senior director of operations for Pennsylvania American Water. “By monitoring conditions across the reservoirs, we can make real-time adjustments to treatment and continue providing safe, reliable service.”
Along with sampling, the company uses solar-powered mixers in both reservoirs to improve water quality. These mixers prevent algae growth by providing continuous circulation within the reservoirs.
The Lake Oneida and Thorn Run reservoirs supply water to customers in the City of Butler; Connoquenessing, East Butler and Saxonburg boroughs; and Butler, Center, Clinton, Connoquenessing, Donegal, Forward, Franklin, Jackson, Jefferson, Lancaster, Oakland, Penn and Summit townships.
While fishing is allowed from the shore, recreational boating is prohibited on both reservoirs. More information on fishing on Pennsylvania American Water-owned reservoirs is available here.
About American Water
American Water (NYSE: AWK) is the largest regulated water and wastewater utility company in the United States. With a history dating back to 1886 and celebrating 140 years in 2026, We Keep Life Flowing® by providing safe, clean, reliable and affordable drinking water and wastewater services to approximately 14 million people with regulated operations in 14 states and on 18 military installations. American Water's approximately 7,000 talented professionals leverage their significant expertise and the company's national size and scale to achieve excellent outcomes for the benefit of customers, employees, investors and other stakeholders. For more information, visit amwater.com and join American Water on LinkedIn, Facebook, X and Instagram.
About Pennsylvania American Water
Pennsylvania American Water, a subsidiary of American Water, is the largest regulated water utility in the state with approximately 1,200 dedicated employees working to provide safe, clean, reliable and affordable water and wastewater services to approximately 2.5 million people.
Media Contact:
Lauren Camarda
External Affairs Manager
Pennsylvania American Water
412-814-6505
lauren.camarda@amwater.com