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County drinking water records

Umatilla County, OR drinking water systems

32 community water systems serve Umatilla County, OR, reporting 63,427 people served in all.

10 of them (31%) had at least one health-based violation in the last 10 years. 7 systems still have one unresolved.

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

Their lead service line inventories list 0 lead lines, 0 galvanized lines that must be replaced and 58 lines of unknown material.

3 more systems are placed in Umatilla County, OR 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
32
People served, sum of each system's own figure
63,427
Systems with a health-based violation, last 10 years
10
Systems with one unresolved
7
Lead service lines in inventories
0

Water systems serving Umatilla County

32 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 Hermiston Hermiston 20,000 Surface water 0 0 0
City of Pendleton Pendleton and Mission 16,996 Groundwater 0 0 0
City of Umatilla Umatilla 8,256 Groundwater 0 0 0
City of Milton-Freewater Milton-Freewater 7,145 Groundwater 0 0 0
City of Stanfield Stanfield 2,115 Groundwater 0 0 0
City of Pilot Rock Pilot Rock 1,326 Groundwater 0 0 0
Ctuir PWD Mission Mission 1,310 Groundwater 1 0 0
City of Athena Athena 1,238 Groundwater 2 1 0
City of Weston Weston 714 Groundwater 0 0 0
City of Echo Echo 632 Groundwater 0 0 0
Tierra Linda Estates Hermiston 450 Groundwater 0 4 0
City of Adams Water Dept Adams 400 Groundwater 0 0 0
Vista Home Park Outside cities and towns 300 Groundwater 0 0 0
Charles Tracts Water Company Outside cities and towns 290 Groundwater 0 0 0
City of Ukiah Ukiah 235 Groundwater 1 0 0
Green Acres MHP - Umatilla Co Outside cities and towns 200 Groundwater 0 3 0
Sunridge Water Inc Outside cities and towns 200 Groundwater 1 0 0
City of Helix Helix 190 Groundwater 2 0 0
Rieth Water District Outside cities and towns 150 Groundwater 0 0 0
Country Squire Estates Hermiston 150 Groundwater 0 1 0
Hat Rock Water Company Outside cities and towns 150 Groundwater 3 0 0
Heritage Improvement District Tutuilla 125 Groundwater 0 0 0
Chart Subdivision Outside cities and towns 125 Groundwater 1 0 0
Villadom Mobile Home Park Outside cities and towns 115 Groundwater 3 4 0
Shady Rest Mobile Court Outside cities and towns 110 Groundwater 0 0 0
North Hill Water Corporation Outside cities and towns 100 Groundwater 2 0 0
Vincent Water Company Umapine 90 Groundwater 1 0 0
Green Meadows Wtr Corporation Green Meadows 75 Groundwater 0 0 0
Power City Water Co-Op Outside cities and towns 70 Groundwater 0 0 0
Halls Trailer Court Gopher Flats 60 Groundwater 0 0 0
Hat Rock Mobile Court Outside cities and towns 60 Groundwater 0 1 0
Stewarts Addition Green Meadows 50 Groundwater 0 7 0

Systems placed by county record in Umatilla County

3 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
Stanfield Hutterian County on record 80 Groundwater 0 1 0
McKay Acres Improvement Dist County on record 75 Groundwater 0 0 0
Desire for Healing, Inc County on record 33 Groundwater 2 8 0

Cities and towns in Umatilla County

17 places

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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