Washington
Ferry County drinking water quality
33 active public water systems serve 5,999 people in Ferry County. 19 are compliant, 14 had at least one EPA violation in the past three years, 0 are designated serious violators, and 1 carries a health flag.
Needs attention
Community water systems
11 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Republic City of |
1,673 | 1 | 0 | |
|
Inchelium Water District |
540 | 0 | 0 | |
|
Curlew Conservation Center |
349 | 2 | 0 | |
|
Curlew Water & Sewer District |
316 | 0 | 0 | |
|
Lakeside Park |
180 | 2 | 1 | |
|
Orient Water Company |
167 | 4 | 1 | |
|
Curlew Kai Homeowner Water System |
133 | 1 | 0 | |
|
Martin Creek Community Assn |
109 | 1 | 0 | |
|
North Twin Lakeview Assn |
88 | 0 | 0 | |
|
Riverwood Water System |
43 | 0 | 0 | |
|
Fourth of July Creek Estates |
29 | 0 | 0 |
Non-community systems (22: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Curlew Lake State Park |
779 | 0 | 0 | |
|
Hartmans Log Cabin Resort INC |
397 | 1 | 0 | |
|
Ferry County Fairgrounds |
227 | 1 | 0 | |
|
US Border Station Danville |
171 | 1 | 0 | |
|
US Border Station Laurier |
99 | 0 | 0 | |
|
Danville Outpost |
87 | 1 | 0 | |
|
Black Beach Resort |
81 | 1 | 0 | |
|
Columbia Cedar |
70 | 0 | 0 | |
|
Tiffanys Resort |
70 | 0 | 0 | |
|
Torboy Industrial Park |
66 | 0 | 0 | |
|
Key Mill Facility |
65 | 0 | 0 | |
|
Swan Lake Campground |
44 | 0 | 0 | |
|
Salishan Water System |
43 | 0 | 0 | |
|
Watering Hole, the |
29 | 0 | 0 | |
|
Trailside Good Eats & Gifts |
27 | 0 | 0 | |
|
K2 Mine |
25 | 0 | 0 | |
|
Curlew Lake Heights Water System |
22 | 1 | 0 | |
|
Fishermans Cove |
19 | 0 | 0 | |
|
North Lake RV Park |
17 | 0 | 0 | |
|
Kpm Water System |
12 | 1 | 0 | |
|
Carr Group |
11 | 1 | 0 | |
|
Park Addition Water Association |
11 | 0 | 0 |
Inactive systems (38, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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. Retrieved from ECHO on Oct 11, 2026.