PEWAUKEE CITY WATER AND SEWER UTILITY
PWSID: WI2680214 · Pewaukee, WI · Serves 8,671 people
PEWAUKEE CITY WATER AND SEWER UTILITY has 53 health-based violations out of 53 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
PEWAUKEE CITY WATER AND SEWER UTILITY (PWSID WI2680214) 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 8,671 people in Pewaukee, WI, and is subject to primacy enforcement by the Wisconsin drinking-water program.
The system's federal compliance record contains 53 total violations, with 53 classified as health-based (MCL exceedances or treatment-technique failures). 2 distinct contaminants have been cited, including Lead & Copper Rule, Copper. Recorded violations span 2013–2025.
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)
- WI2680214
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Pewaukee, WI
- Population Served
- 8,671
- Health Violations
- Yes (53)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Lead & Copper Rule | 27 | 27 |
| Copper | 26 | 26 |
Violation History (53)
| Contaminant | Health | Date |
|---|---|---|
| Copper | Yes | Oct 1, 2025 |
| Copper | Yes | Jul 1, 2025 |
| Copper | Yes | Apr 1, 2025 |
| Copper | Yes | Apr 1, 2025 |
| Copper | Yes | Jan 1, 2025 |
| Copper | Yes | Jan 1, 2025 |
| Copper | Yes | Oct 1, 2024 |
| Copper | Yes | Oct 1, 2024 |
| Copper | Yes | Oct 1, 2024 |
| Copper | Yes | Jul 1, 2024 |
| Copper | Yes | Jul 1, 2024 |
| Copper | Yes | Jul 1, 2024 |
| Copper | Yes | Apr 1, 2024 |
| Copper | Yes | Apr 1, 2024 |
| Copper | Yes | Apr 1, 2024 |
| Copper | Yes | Jan 1, 2024 |
| Copper | Yes | Jan 1, 2024 |
| Copper | Yes | Jan 1, 2024 |
| Copper | Yes | Oct 1, 2023 |
| Copper | Yes | Oct 1, 2023 |
| Copper | Yes | Oct 1, 2023 |
| Lead & Copper Rule | Yes | Jul 1, 2019 |
| Lead & Copper Rule | Yes | Jul 1, 2019 |
| Lead & Copper Rule | Yes | Jul 1, 2019 |
| Lead & Copper Rule | Yes | Jul 1, 2019 |
| Lead & Copper Rule | Yes | Jul 1, 2019 |
| Lead & Copper Rule | Yes | Apr 1, 2018 |
| Lead & Copper Rule | Yes | Apr 1, 2018 |
| Lead & Copper Rule | Yes | Jan 1, 2018 |
| Lead & Copper Rule | Yes | Jan 1, 2018 |
| Lead & Copper Rule | Yes | Oct 1, 2017 |
| Lead & Copper Rule | Yes | Oct 1, 2017 |
| Lead & Copper Rule | Yes | Oct 1, 2017 |
| Lead & Copper Rule | Yes | Jul 1, 2017 |
| Lead & Copper Rule | Yes | Jul 1, 2017 |
| Lead & Copper Rule | Yes | Jul 1, 2017 |
| Lead & Copper Rule | Yes | Apr 1, 2017 |
| Lead & Copper Rule | Yes | Apr 1, 2017 |
| Lead & Copper Rule | Yes | Apr 1, 2017 |
| Lead & Copper Rule | Yes | Jan 1, 2017 |
| Lead & Copper Rule | Yes | Jan 1, 2017 |
| Lead & Copper Rule | Yes | Jan 1, 2017 |
| Lead & Copper Rule | Yes | Oct 1, 2015 |
| Lead & Copper Rule | Yes | Oct 1, 2015 |
| Lead & Copper Rule | Yes | Jul 1, 2015 |
| Lead & Copper Rule | Yes | Jul 1, 2015 |
| Lead & Copper Rule | Yes | Apr 1, 2015 |
| Lead & Copper Rule | Yes | Apr 1, 2015 |
| Copper | Yes | Oct 1, 2014 |
| Copper | Yes | Jul 1, 2014 |
| Copper | Yes | Apr 1, 2014 |
| Copper | Yes | Jan 1, 2014 |
| Copper | Yes | Oct 1, 2013 |
Frequently Asked Questions
Is PEWAUKEE CITY WATER AND SEWER UTILITY water safe to drink?
How many people does PEWAUKEE CITY WATER AND SEWER UTILITY serve?
What violations does PEWAUKEE CITY WATER AND SEWER UTILITY have?
What contaminants have been found in PEWAUKEE CITY WATER AND SEWER UTILITY water?
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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.