Tap Truth EPA drinking water records, in plain English

County drinking water records

Mercer County, OH drinking water systems

9 community water systems serve Mercer County, OH, reporting 22,904 people served in all.

1 of them had at least one health-based violation in the last 10 years. 7 systems still have one unresolved.

8 rely mainly on groundwater and 1 on surface water, counting water bought from other systems.

Their lead service line inventories list 0 lead lines, 9 galvanized lines that must be replaced and 34 lines of unknown material.

Community water systems
9
People served, sum of each system's own figure
22,904
Systems with a health-based violation, last 10 years
1
Systems with one unresolved
7
Lead service lines in inventories
0

Water systems serving Mercer County

9 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Celina City Celina 11,682 Surface water 0 2 0
Coldwater Village Coldwater 4,774 Groundwater 0 0 0
St Henry Village St. Henry 2,596 Groundwater 0 3 0
Ft Recovery Village Fort Recovery 1,501 Groundwater 0 2 0
Rockford Village Rockford 1,120 Groundwater 1 2 0
Mendon Village Mendon 628 Groundwater 0 2 0
Chickasaw Village Chickasaw 358 Groundwater 0 1 0
Saint Charles Center Outside cities and towns 142 Groundwater 0 0 0
Grand Lake Estates Outside cities and towns 103 Groundwater 0 6 0

Cities and towns in Mercer County

7 places

Back to Ohio

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations