Marshfield, Wisconsin Water Quality Report
Water quality data for 6 water systems serving 19,392 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.007 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.003 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.012 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.014 | 0.010 ug/L | 0.001 ug/L(EWG) | 140% | Above limit |
| PFOS | 0.014 | 0.004 ug/L | 0.300 ug/L(EWG) | 350% | Above limit |
| PFPeA | 0.014 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (17)
45
Dec 2, 2025
52
Jun 1, 2024
52
Jun 1, 2024
52
Jun 1, 2024
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Resolved Violations (168)
4H
Jul 2, 2025
03
Mar 1, 2025 — Jun 30, 2025
03
Mar 1, 2025 — Jun 30, 2025
03
Mar 1, 2025 — Jun 30, 2025
03
Mar 1, 2025 — Jun 30, 2025
+ 163 more resolved violations
Frequently Asked Questions
Is Marshfield tap water safe to drink?
Marshfield's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Marshfield tap water?
7 contaminants have been detected in Marshfield's water supply across 6 water systems. See the full contaminant table above for details.
How can I improve my water quality in Marshfield?
Install a water filter rated for the specific contaminants found in Marshfield's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Marshfield have any water quality violations?
Yes, Marshfield currently has 17 active violations. See the violations section above for details.