Tap Truth EPA drinking water records, in plain English

County drinking water records

Grant County, OR drinking water systems

8 community water systems serve Grant County, OR, reporting 4,277 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.

5 rely mainly on groundwater and 3 on surface water, counting water bought from other systems.

Their lead service line inventories list no lead lines, no galvanized lines that must be replaced and no lines of unknown material.

Community water systems
8
People served, sum of each system's own figure
4,277
Systems with a health-based violation, last 10 years
2
Systems with one unresolved
1
Lead service lines in inventories
0

Water systems serving Grant County

8 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
City of John Day John Day 1,617 Groundwater 0 0 0
Prairie City Prairie City 841 Groundwater under direct influence 0 0 0
Canyon City Water Department Canyon City 666 Groundwater under direct influence 1 0 0
City of Mount Vernon Mount Vernon 510 Groundwater 0 0 0
City of Seneca Seneca 200 Groundwater 0 0 0
City of Long Creek Long Creek 173 Groundwater 0 0 0
City of Dayville Dayville 155 Groundwater 0 0 0
City of Monument Monument 115 Groundwater under direct influence 7 1 0

Cities and towns in Grant County

8 places

Back to Oregon

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