One or more PFAS compounds exceed EPA Maximum Contaminant Levels. This is not a current violation — the federal compliance deadline is April 2029 (a proposed extension to 2031 is not final). These are UCMR 5 results from 2023 to 2025; the system may have installed treatment since.
Key contaminants vs MCL
PFOA6.1 ppt(MCL: 4 ppt)
PFOS7.9 ppt(MCL: 4 ppt)
EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: April 26, 2029 under the current rule.
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As printed in the state's own documents. Amounts are not added together: each is a different kind of figure.
Aug 6, 2025 · Generally the project includes upgrading the facilities 6 dual media gravity filters with new underdrains, cemetious wall coatings, and granular activated carbon. Work will replace aging Leopold underdrains with new restrain compatible blocks and media retainers while adding granular activated carbon to address EPA's proposed MCL's for PFAS. · $1.61M
On SRF fundable list (Provisional Priority List). Source →
Oct 22, 2024 · Primary focus of this project is to identify an optimal technology that will be implemented at both of our water treatment facilities to address PFAS related compounds in our source waters. Our current approach utilizes MCL proposals from EPA, and a draft timeline for implementation. Such low limits and quick implementation of an MCL has forced am accelerated response to address a proposed MCL. Consequences included implementation of a technology that will work, but may not be optimal from an operation and maintenance perspective nor an efficient use of rate payer dollars. Ultimately, a detailed evaluation focused on both PFAS compounds outlined in the proposed MCL along with their precursors will benefit public health by identifying optimal removal and destruction technologies specific to our source water and treatment approaches. · $325k
On SRF fundable list (Provisional Priority List). Source →
Jun 26, 2024 · Generally the project includes upgrading the facilities 6 dual media gravity filters with new underdrains, cemetious wall coatings, and granular activated carbon. Work will replace aging Leopold underdrains with new restrain compatible blocks and media retainers while adding granular activated carbon to address EPA's proposed MCL's for PFAS. ·