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PFAS treatment online; Wausau staff outline GAC reactivation, monitoring and permit comment deadlines
Summary
Consultants and staff said the PFAS granular activated carbon system has been operational for over a year, reported equipment fixes and budget status, described a plan to use reactivated carbon to save ~20%, and urged comments on a draft WPDES permit by Dec. 22; testing frequency and potential DNR limits were highlighted.
Donahue Engineering and city staff updated the Wausau Waterworks Commission Dec. 2 on PFAS treatment operations, granular activated carbon (GAC) change-out plans and a draft WPDES permit that imposes PFAS testing requirements and has a public comment deadline later this month.
Susan from Donahue Engineering said the PFAS treatment system has been operational for more than a year and that most construction items are complete. Contractors replaced leaking air-release valves on the GAC vessels at no cost to the…
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