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
PFOS4.7 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 12, 2026 · Construction of an ultraviolet light advanced oxidation process (UV AOP) WTP with granular activated carbon (GAC) to remove per- and polyfluoroalkyl substances (PFAS), 1,4-dioxane, and total trihalomethanes (TTHM) from the drinking water supply · $8k
Proposed EC increase on the draft list for the 8/12/2026 meeting, SFY2025-26. Source →
Aug 12, 2026 · Construction of an ultraviolet light advanced oxidation process (UV AOP) WTP with granular activated carbon (GAC) to remove per- and polyfluoroalkyl substances (PFAS), 1,4-dioxane, and total trihalomethanes (TTHM) from the drinking water supply · $188k
Proposed EC increase on the draft list for the 8/12/2026 meeting, SFY2025-26. Source →
Aug 12, 2026 · Construction of an ultraviolet light advanced oxidation process (UV AOP) WTP with granular activated carbon (GAC) to remove per- and polyfluoroalkyl substances (PFAS), 1,4-dioxane, and total trihalomethanes (TTHM) from the drinking water supply · $3.44M
On the draft EC waiting list (below the funding line), SFY2025-26. Source →
Feb 15, 2025 · Construction of an ultraviolet light advanced oxidation process (UV AOP) WTP with granular activated carbon (GAC) to remove per- and polyfluoroalkyl substances (PFAS), 1,4-dioxane, and total trihalomethanes (TTHM) from the drinking water prior to distribution ·
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$31.2M
On the EC waiting list (below the funding line), SFY2024-25. Source →
Feb 12, 2025 · Construction of an ultraviolet light advanced oxidation process (UV AOP) WTP with granular activated carbon (GAC) to remove per- and polyfluoroalkyl substances (PFAS), 1,4-dioxane, and total trihalomethanes (TTHM) from the drinking water prior to distribution. · $19.3M
On the final EC fundable list, SFY2024-25. Source →
Feb 12, 2025 · Main Water Treatment Plant Advanced Treatment of 1,4-Dioxane and PFAS - Emerging Contaminants · $3.64M
On the adopted DWSRF base/GS fundable list (loan), SFY2025-26. Source →
Feb 12, 2025 · Construction of an ultraviolet light advanced oxidation process (UV AOP) WTP with granular activated carbon (GAC) to remove per- and polyfluoroalkyl substances (PFAS), 1,4-dioxane, and total trihalomethanes (TTHM) from the drinking water supply · $27.6M
On the draft EC fundable list for the 8/12/2026 meeting, SFY2025-26. Source →