Wisconsin
Peshtigo
Good news: No PFAS detected above reporting limits in your water system.
- Population served
- 3.4K
- Systems tested
- 1
- Compounds detected
- 29
- Above federal limits
- 0
Source: EPA UCMR 5 · Samples collected 2023–2026
What was found in Peshtigo’s water
PESHTIGO WATERWORKS
Serves 3.4K people · GW
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.
About PFAS contamination in Peshtigo
## Summary Peshtigo's municipal water system, Peshtigo Waterworks, earned an A grade, meaning no detected PFAS compounds were found to exceed federal limits — a reassuring result for the city's roughly 4,000 residents. Testing identified 15 different PFAS compounds in the system, but none were reported at concentrations that surpassed EPA thresholds, including the 10 parts per trillion limits set for HFPO-DA and PFNA. The contamination source in the area is known: a Tyco Fire Products AFFF testing facility, which used firefighting foam chemicals linked to PFAS pollution.
## What the data shows All 15 PFAS compounds detected in Peshtigo Waterworks were reported without specific concentration figures, indicating levels either fell below detection thresholds or were not quantified for public reporting. Of the compounds tested, two — HFPO-DA and PFNA — carry EPA federal limits of 10 parts per trillion each; neither was reported as exceeding those limits. The remaining 13 compounds currently have no federal limits established, so their presence, while noted, cannot be measured against a regulatory standard. Peshtigo operates a single water system, and that system received the top grade.
## What residents should know Despite the A grade, residents should be aware that bottled water is still being provided in the area as part of an ongoing response, and a settlement involving Tyco/Johnson Controls has been reached related to the nearby contamination source — suggesting the situation continues to be monitored and addressed. Residents with specific questions about current water quality or the bottled water program should contact Peshtigo Waterworks directly for the most up-to-date information.
About this summary: Narrative text on this page was drafted by an AI model (claude-sonnet-4-6) from EPA UCMR 5 data and reviewed before publication. The numeric data above is reported by water utilities directly to the EPA. If you spot an error, email data@checkyourwater.org.
What Peshtigo residents can do
Peshtigo's water meets federal PFAS standards based on EPA UCMR 5 testing. To stay informed:
- Read your utility's annual Consumer Confidence Report (CCR) — request a copy if you don't receive one.
- Sign up for water quality alerts from your utility.
- If you're on a private well, get it independently tested for PFAS.
- Reduce PFAS exposure from non-water sources: avoid non-stick cookware, stain-resistant fabrics, and grease-resistant food packaging.
Primary contamination source: Tyco Fire Products AFFF testing facility
Settlement information: Tyco/Johnson Controls settlement; bottled water still being provided
How Peshtigo compares
Peshtigo is one of 2 communities we track in Wisconsin where PFAS levels exceed federal limits.
Where this data comes from
- Testing program: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5)
- Testing period: 2023–2026
- Federal limits: EPA Maximum Contaminant Levels (MCLs) finalized April 2024
- Methodology: Read how we calculate grades
- Raw EPA data: EPA UCMR Occurrence Data
This data reflects EPA testing. Your water utility may have more recent results — contact them directly for the most current information.