Two Ridgewood Water employees and a Glen Rock DPW employee "detected a foreign odor coming from inside the treatment center and went inside to investigate" around 7:30 a.m., Glen Rock Police Lt. Christopher McInerney said.
"During their brief investigation, they began to feel sick and exited."
Two of the employees were taken to The Valley Hospital, McInerney said. The third refused medical attention, he said.
Glen Rock police, firefighters and EMS were joined by a Bergen County Hazardous Materials Unit at the Prospect Street facility.
The Hazmat unit detected a light VOC (volatile organic compound) reading "coming from an unknown solvent, possibly paint thinner, that was most likely dumped down a drain by a RW Water customer," McInerney said.
The state Department of Environmental Protection was notified for further investigation, the lieutenant said.
Boyd A. Loving took the photo and contributed to this account.
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