Sinking Spring officials report wastewater plant microbiology upset; DEP notified

Sep 11, 2025

Borough Manager Michael Hart told council that something introduced to the WWTP on Aug. 23 'wiped out the microbiology,' triggering DEP notification; a report said permit requirements were met by Sept. 2 but plant stability remained a concern.

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Borough Manager Michael Hart told the Borough Council on Sept. 11 that the wastewater treatment plant experienced an operational upset on Aug. 23 after “something” entered the system and disrupted the plant’s microbiology. Hart said that plant staff and Ms. Cherry notified the Pennsylvania Department of Environmental Protection and that the plant was meeting permit requirements as of Sept. 2, though it was not yet as stable as before the incident.

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