Public water system · OH5400312
ActiveGrand Lake Estates
Community water system in Mercer County, Ohio, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
103
Service connections
68
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-12-01 | 3A | 8000 | No | Archived |
| 2025-07-01 | 71 | 7000 | No | Unaddressed |
| 2024-07-01 | 71 | 7000 | No | Unaddressed |
| 2023-07-01 | 71 | 7000 | No | Unaddressed |
| 2022-07-01 | 71 | 7000 | No | Unaddressed |
| 2021-07-01 | 71 | 7000 | No | Unaddressed |
| 2020-07-01 | 71 | 7000 | No | Unaddressed |
| 2018-11-14 | 72 | 7000 | No | Resolved |
| 2016-02-03 | 65 | 5000 | Yes | Resolved |
| 2016-01-01 | 66 | 5000 | No | Resolved |
| 2015-06-01 | 66 | 5000 | No | Resolved |
| 2010-05-01 | 23 | 3100 | No | Resolved |
Grand Lake Estates: frequently asked questions
Is Grand Lake Estates's water safe to drink?
Grand Lake Estates is an active community water system regulated under the Safe Drinking Water Act, overseen by the OH state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Grand Lake Estates?
Grand Lake Estates (PWSID OH5400312) is a private-owned community water system, regulated by the OH state drinking water program.
How many people does Grand Lake Estates serve?
Grand Lake Estates reports serving 103 people through 68 service connections in Mercer County, Ohio.
Where does Grand Lake Estates get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Mercer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Trenton Water Works | Mercer | 217,000 | Community | Surface water |
| Aqua Pa Shenango Valley WTP | Mercer | 48,000 | Community | Surface water |
| Aqua Nj - Hamilton Square | Mercer | 39,128 | Community | Purchased surface water |
| East Windsor Mua | Mercer | 25,000 | Community | Groundwater |
| Wvawc Bluefield District | Mercer | 12,174 | Community | Surface water |
| Celina City | Mercer | 11,682 | Community | Surface water |