All water systems in Washington
9 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Masonic Retirement Center King County |
292 | 0 | 0 | |
|
Quilcene Masonic Hall Jefferson County |
60 | 0 | 0 | |
|
North Mason United Methodist Church Mason County |
26 | 0 | 0 | |
|
North Mason Eagles Mason County |
25 | 0 | 0 | |
|
Mason's Family Grocery Grant County |
22 | 0 | 0 | |
|
Mason Water System Island County |
18 | 0 | 0 | |
|
Mason CO Fire Protection Dist 3 Mason County |
10 | 0 | 0 | |
|
Dennys Mason Lake Marina Mason County |
6 | 0 | 0 | |
|
Mason, Robert W. Franklin County |
4 | 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.