PENTWATER
Michigan — Community Water System — PWSID: MI0005260
System Information
| PWSID | MI0005260 |
| System Name | PENTWATER |
| 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 | Feb 3, 1981 |
| Last Reported | Dec 18, 2025 |
Location & Contact
| State | Michigan |
| City | PENTWATER |
| ZIP Code | 49449 |
| Address | 65 S Hancock Street |
| Organization | VAN ESS, TOBY |
| Phone | 231-869-8301 |
Population & Service
| Population Served | 857 |
| Service Connections | 715 |
Drinking Water Violations (24)
This water system has 24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | Dec 31, 2025 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Unaddressed | — | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2025 | Dec 31, 2025 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Unaddressed | — | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 21, 2024 | Consumer Confidence Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 21, 2024 | Consumer Confidence Rule |
| Jul 1, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 26, 2022 | Consumer Confidence Rule |
| Jul 1, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 26, 2022 | Consumer Confidence Rule |
| Sep 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Sep 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Sep 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Sep 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Jul 1, 2006 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 19, 2006 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2006 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 19, 2006 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2006 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 19, 2006 | Public Notice Rule and Revised PN Rule |
| Apr 1, 2006 | Jun 30, 2006 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2006 | Jun 30, 2006 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2006 | Jun 30, 2006 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2006 | Jun 30, 2006 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 23, 2006 | Dec 6, 2006 | Arsenic | MCL | Yes | No | .0187 MG/L | 0.010 mg/L | .01 | Resolved | Dec 6, 2006 | Arsenic Rule |
| Jan 23, 2006 | Dec 6, 2006 | Arsenic | MCL | Yes | No | .0187 MG/L | 0.010 mg/L | .01 | Resolved | Dec 6, 2006 | Arsenic Rule |
| Jan 23, 2006 | Dec 6, 2006 | Arsenic | MCL | Yes | No | .0187 MG/L | 0.010 mg/L | .01 | Resolved | Dec 6, 2006 | Arsenic Rule |
| Jan 23, 2006 | Dec 6, 2006 | Arsenic | MCL | Yes | No | .0187 MG/L | 0.010 mg/L | .01 | Resolved | Dec 6, 2006 | Arsenic Rule |
| Oct 1, 2003 | Oct 31, 2003 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | Total Coliform Rule |
| Jan 1, 1996 | Jan 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 1996 | Total Coliform Rule |
| May 1, 1993 | May 31, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 1993 | Total Coliform 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.