WARREN, CITY OF
Michigan — Community Water System — PWSID: MI0006900
System Information
| PWSID | MI0006900 |
| System Name | WARREN, CITY OF |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 3, 1981 |
| Last Reported | Dec 18, 2025 |
Location & Contact
| State | Michigan |
| City | WARREN |
| ZIP Code | 48089 |
| Address | WATER DIVISION |
| Organization | KOSS, DAVID |
| Phone | 586-759-9224 |
Population & Service
| Population Served | 134,056 |
| Service Connections | 49,386 |
Drinking Water Violations (9)
This water system has 9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 29, 2020 | May 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2000 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 17, 2001 | Consumer Confidence 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.