LA CROSSE WATERWORKS
Wisconsin — Community Water System — PWSID: WI6320309
System Information
| PWSID | WI6320309 |
| System Name | LA CROSSE WATERWORKS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 28, 1981 |
| Last Reported | Dec 17, 2025 |
Location & Contact
| State | Wisconsin |
| City | LA CROSSE |
| ZIP Code | 54601 |
| Address | CITY HALL |
| Organization | CITY OF LA CROSSE |
| Phone | — |
Population & Service
| Population Served | 53,000 |
| Service Connections | 16,176 |
Drinking Water Violations (60)
This water system has 60 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 1, 2023 | Lead and Copper Rule |
| Apr 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 1, 2023 | Lead and Copper Rule |
| Feb 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 11, 2021 | Lead and Copper Rule |
| Feb 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 11, 2021 | Lead and Copper Rule |
| Oct 1, 2019 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 25, 2021 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2019 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 25, 2021 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2019 | Dec 31, 2019 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2019 | Nitrate Rule |
| Jan 1, 2019 | Dec 31, 2019 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2019 | Nitrate Rule |
| Jan 1, 2019 | Dec 31, 2019 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2019 | Nitrate Rule |
| Jan 1, 2019 | Dec 31, 2019 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2019 | Nitrate Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2019 | Public Notice Rule and Revised PN Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Jun 1, 2017 | May 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 31, 2020 | Lead and Copper Rule |
| Mar 16, 2013 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Dec 3, 2013 | Ground Water Rule |
| Mar 16, 2013 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Dec 3, 2013 | Ground Water Rule |
| Mar 16, 2013 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Dec 3, 2013 | Ground Water Rule |
| Mar 16, 2013 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jun 6, 2013 | Ground Water Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.