Seneca Nation Frustrated by Latest Overflow from Olean Wastewater Treatment Plant Approximately 200,000 gallons of untreated sewage spewed into Allegheny River June 21, 2024 | Pictured above: Olean Wastewater Treatment Plant ALLEGANY TERRITORY, SALAMANCA, N.Y. – For residents of the Seneca Nation’s Allegany Territory and their neighbors in the surrounding communities, the extreme heat […]