For about seven hours Thursday, leachate from the Chautauqua County landfill escaped from a pipeline headed for a treatment plant and may have entered small creeks downhill from the leak, according to a report late Thursday by the NY-Alert system.
The report stated the rate of discharge was estimated to be about 10 gallons per minute.
It affected a pond at the Towerville Road landfill in Ellery and possibly also escaped from there into the environment.
The leak, which occurred at about 5 a.m., included "untreated" leachate from the landfill, however, the report did not state what contaminants may have been included in the leak.
The cause of the incident was a pipe leak that was later repaired.
No public areas were reported to be affected by the leak, the report stated.
The report was filed under the state Department of Environmental Conservation's Sewage Pollution Right-to-Know law.
Officials at the Chautauqua County Office of Environmental Health weren't immediately available this morning for comment on the incident.