CEDARBURG, WIS. — Water quality tests showed high levels of vinyl chloride, a chemical used in the production of PVC polymers, in Cedarburg’s well No. 4, the Journal Sentinel reported.
This the fourth consecutive month the toxic chemical has been detected in the city’s water supply.
According to an official with Cedarburg Light and Water Utility, a test conducted on June 7 detected 0.18 parts per billion (ppb) of vinyl chloride in the well — the highest concentration found since testing began in March.
Federal and state regulations limit vinyl chloride levels to no more than 0.2 ppb in drinking water.
Officials believe the chemical seeped from a closed landfill into groundwater where it later flowed into the well, the article stated.
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