PEPIN WATERWORKS
PWSID: WI6470141 · Pepin, WI · Serves 816 people
PEPIN WATERWORKS has 10 health-based violations out of 10 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
PEPIN WATERWORKS (PWSID WI6470141) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 816 people in Pepin, WI, and is subject to primacy enforcement by the Wisconsin drinking-water program.
The system's federal compliance record contains 10 total violations, with 10 classified as health-based (MCL exceedances or treatment-technique failures). 4 distinct contaminants have been cited, including Chlorine, Combined Radium 226/228, Gross Alpha. Recorded violations span 2014–2025.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Wisconsin state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- WI6470141
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Pepin, WI
- Population Served
- 816
- Health Violations
- Yes (10)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Chlorine | 4 | 4 |
| Combined Radium 226/228 | 4 | 4 |
| Gross Alpha | 1 | 1 |
| Fluoride | 1 | 1 |
Violation History (10)
| Contaminant | Health | Date |
|---|---|---|
| Chlorine | Yes | Aug 2, 2025 |
| Gross Alpha | Yes | Oct 17, 2024 |
| Chlorine | Yes | May 2, 2024 |
| Chlorine | Yes | May 2, 2024 |
| Combined Radium 226/228 | Yes | Feb 1, 2023 |
| Combined Radium 226/228 | Yes | Feb 1, 2023 |
| Chlorine | Yes | May 2, 2021 |
| Combined Radium 226/228 | Yes | Nov 1, 2020 |
| Combined Radium 226/228 | Yes | Nov 1, 2020 |
| Fluoride | Yes | Jan 1, 2014 |
Frequently Asked Questions
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.