MIDDLETON WATERWORKS
PWSID: WI1130242 · MIDDLETON, WI · Serving 23,868 people
Type: CWSOwner: LSource: GW
Compliant
All PFAS compounds below EPA Maximum Contaminant Levels.
Key contaminants vs MCL
EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31
Exact contamination levels
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N/A ppt
Highest single detection
2025-04-08
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 348 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| NEtFOSAA | ND | — | Below MRL | 2024-10-22 |
| PFOA | ND | 4 | Below MRL | 2024-10-22 |
| PFDoA | ND | — | Below MRL | 2024-10-22 |
| PFHxA | ND | — | Below MRL | 2024-10-22 |
| PFDA | ND | — | Below MRL | 2024-10-22 |
Violation history(7 violations, 7 open)
Monitoring & Reporting - PFOS(PFOS)
2023-01-01 · Open · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2023-01-01 · Open · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2023-01-01 · Open · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2023-01-01 · Open · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2023-01-01 · Open · Tier 3
Monitoring & Reporting - PFHxA(PFHxA)
2023-01-01 · Open · Tier 3
Violation details
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