County drinking water records

Butler County, OH drinking water systems

12 community water systems serve Butler County, OH, reporting 386,950 people served in all. A system that also serves other counties counts all of its customers here.

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

10 rely mainly on groundwater and 2 on surface water, counting water bought from other systems.

Their lead service line inventories list 8,310 lead lines, 354 galvanized lines that must be replaced and 34,193 lines of unknown material.

1 more system is placed in Butler 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
12
People served, sum of each system's own figure
386,950
Systems with a health-based violation, last 10 years
0
Systems with one unresolved
7
Lead service lines in inventories
8,310

Water systems serving Butler County

12 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
Butler Co. Water District 2 PWS Beckett Ridge, Monroe and 3 more and land outside them 116,572 Purchased surface water 0 0 0
Hamilton Public Water System Hamilton 62,447 Groundwater 0 1 4,156
Middletown City PWS Middletown 51,229 Groundwater 0 2 4,144
Fairfield City PWS Fairfield 44,907 Groundwater 0 0 0
Southwest Regional Water District Ross, Darrtown and 4 more and land outside them 42,856 Groundwater 0 0 0
Oxford City PWS Oxford 24,000 Groundwater 0 0 6
Monroe City PWS Monroe 15,600 Purchased surface water 0 1 0
Trenton City PWS Trenton 13,012 Groundwater 0 1 0
Harrison City PWS Harrison and land outside it 11,600 Groundwater 0 3 4
New Miami Village PWS New Miami and Williamsdale 3,200 Groundwater 0 0 0
Catalina Mobile Home Park Outside cities and towns 1,280 Groundwater 0 2 0
Crouse Mobile Home Park & Sales, LLC Seven Mile 247 Groundwater 0 3 0

Systems placed by county record in Butler 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
Seven Mile Village PWS County on record 1,000 Purchased groundwater 0 0 0

Cities and towns in Butler County

18 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