Tap Truth EPA drinking water records, in plain English

County drinking water records

Knox County, OH drinking water systems

9 community water systems serve Knox County, OH, reporting 31,438 people served in all.

None of them had a health-based violation in the last 10 years.

9 rely mainly on groundwater, counting water bought from other systems.

Their lead service line inventories list 1 lead line, 242 galvanized lines that must be replaced and 4,272 lines of unknown material.

1 more system is placed in Knox County, OH by the county its records name because it has no service area map that lines up with its own records, so it is listed apart and not counted here.

Community water systems
9
People served, sum of each system's own figure
31,438
Systems with a health-based violation, last 10 years
0
Systems with one unresolved
5
Lead service lines in inventories
1

Water systems serving Knox 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
Mount Vernon City PWS Mount Vernon and South Mount Vernon 16,990 Groundwater 0 2 0
Knox County Water and Wastewater PWS Apple Valley 7,710 Groundwater 0 2 0
Fredericktown Village Fredericktown 2,648 Groundwater 0 0 0
Gambier Village PWS Gambier 2,502 Purchased groundwater 0 0 1
Danville Village PWS Danville 1,014 Groundwater 0 1 0
Martinsburg Village PWS Martinsburg 240 Groundwater 0 1 0
Westgate Mobile Home Community South Mount Vernon 150 Purchased groundwater 0 1 0
Colonial Terrace MHC LLC Outside cities and towns 110 Groundwater 0 0 0
Grandview MHP A PWS Outside cities and towns 74 Groundwater 0 0 0

Systems placed by county record in Knox County

1 system

EPA has no service area map for this system. It is placed by the county its records name (the counties EPA lists it serving, or the county coded in its ID where EPA lists none), and without a map it is not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Grandview MHP B County on record 47 Groundwater 0 0 0

Cities and towns in Knox 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