All water systems in Washington
27 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Columbia River High School Clark County |
1,044 | 0 | 0 | |
|
Columbia Elementary School Walla Walla County |
610 | 0 | 0 | |
|
Columbia Point Marina Park Benton County |
600 | 0 | 0 | |
|
Columbia High School Walla Walla County |
287 | 0 | 0 | |
|
Columbia School District 206 Stevens County |
275 | 0 | 0 | |
|
Fort Columbia State Park Pacific County |
213 | 0 | 0 | |
|
New Columbia Water Assn Grant County |
166 | 0 | 0 | |
|
Columbia Adventist Academy Clark County |
141 | 0 | 0 | |
|
Columbia Apt. Yakima County |
70 | 0 | 0 | |
|
Columbia Gorge School of Theater Klickitat County |
70 | 0 | 0 | |
|
Columbia Park Benton County |
68 | 0 | 0 | |
|
Upper Columbia Conference Spokane County |
62 | 0 | 0 | |
|
Columbia Crest Winery, Safety Serv Benton County |
52 | 0 | 0 | |
|
Columbia River Carbonates Cowlitz County |
33 | 0 | 0 | |
|
Columbia Crest Winery, Main Shop Benton County |
30 | 0 | 0 | |
|
Columbia Park Campground Benton County |
25 | 0 | 0 | |
|
Columbialand Farms Walla Walla County |
25 | 0 | 0 | |
|
Columbia School Walla Walla County |
20 | 0 | 0 | |
|
Columbia View 2 Cowlitz County |
12 | 0 | 0 | |
|
Columbia View 3 Cowlitz County |
11 | 0 | 0 | |
|
Columbia National Wildlife Refuge Adams County |
10 | 0 | 0 | |
|
Columbia Vista Corp Clark County |
10 | 0 | 0 | |
|
Columbia Vista Corp #2 Clark County |
10 | 0 | 0 | |
|
Columbia Water System Pierce County |
6 | 0 | 0 | |
|
Columbia Crest 2 Cowlitz County |
2 | 0 | 0 | |
|
Columbia View 1 Cowlitz County |
2 | 0 | 0 | |
|
Columbia RV Grant County |
1 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Washington records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.