Experts warn data centers could strain water supplies and add PFAS risks

May 11, 2026

Presenters told Johnson County officials a large data center can use millions of gallons daily and that cooling and discharge pose risks including PFAS contamination; presenters urged recordkeeping, reclaimed-water use and stronger state oversight.

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At a May 11 workshop, environmental presenter Rita Beving told Johnson County officials that data centers can be heavy water users and may discharge chemical contaminants. "A large data center can consume 5,000,000 gallons a day," she said, and cooling systems can introduce biocides, glycols, trace metals and PFAS into recirculated water.

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