THORNAPPLE LAKE ESTATES
Michigan — Community Water System — PWSID: MI0040047
System Information
| PWSID | MI0040047 |
| System Name | THORNAPPLE LAKE ESTATES |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 3, 1981 |
| Last Reported | Dec 18, 2025 |
Location & Contact
| State | Michigan |
| City | TROY |
| ZIP Code | 48085 |
| Address | 4893 ROCHESTER RD STE D |
| Organization | LOMBARDO, JOE |
| Phone | 248-601-0202 |
Population & Service
| Population Served | 538 |
| Service Connections | 215 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 27, 2021 | Consumer Confidence Rule |
| Jul 1, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 27, 2021 | Consumer Confidence Rule |
| Jun 1, 2018 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Aug 14, 2018 | Revised Total Coliform Rule |
| Jun 1, 2018 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Aug 14, 2018 | Revised Total Coliform Rule |
| Jun 1, 2018 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Aug 14, 2018 | Revised Total Coliform Rule |
| Oct 1, 2006 | Dec 31, 2006 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 2006 | Arsenic Rule |
| Oct 1, 2006 | Dec 31, 2006 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 2006 | Arsenic Rule |
| Oct 1, 2006 | Dec 31, 2006 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 2006 | Arsenic Rule |
| — | — | — | No | No | — | — | — | — | — | — |
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.