Tap Truth EPA drinking water records, in plain English

County drinking water records

Washington County, MO drinking water systems

9 community water systems serve Washington County, MO, reporting 5,376 people served in all.

2 of them had at least one health-based violation in the last 10 years. 1 system still has one unresolved.

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

8 systems filed a lead service line inventory listing 0 lead lines, 0 galvanized lines that must be replaced and 2,230 lines of unknown material.

2 more systems are placed in Washington County, MO by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
9
People served, sum of each system's own figure
5,376
Systems with a health-based violation, last 10 years
2
Systems with one unresolved
1
Lead service lines in inventories
0

Water systems serving Washington 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
Potosi PWS Potosi 2,527 Groundwater 0 0 0
Potosi East Potosi 900 Groundwater 0 0 0
Washington County PWSD 1 Outside cities and towns 503 Purchased groundwater 0 0 0
Irondale PWS Irondale 420 Groundwater 0 0 0
MO American Rogue Creek Utilities Outside cities and towns 276 Groundwater 2 0 0
Mineral Point PWS Mineral Point 231 Groundwater 2 1 No inventory
Anthonies Mill Resort Subdivision Outside cities and towns 214 Groundwater 0 0 0
Washington County PWSD 2 Outside cities and towns 175 Groundwater 0 0 0
Caledonia PWS Caledonia 130 Groundwater 0 0 0

Systems placed by county record in Washington County

2 systems

EPA has no service area map for these systems. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Spring Lake Subdivision County on record 25 Groundwater 0 0 0
The Legacy Ranch County on record 25 Groundwater 0 0 0

Cities and towns in Washington County

4 places

Back to Missouri

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