Water quality in Twin Lakes, Washington
Twin Lakes is in Ferry County. 33 active public water systems serve the county; 14 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Ferry County
10 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Inchelium Water District |
540 | 0 | 7.5 mi | |
| Martin Creek Community Assn |
109 | 1 | 14.4 mi | |
| Riverwood Water System |
43 | 0 | 26.0 mi | |
| Lakeside Park |
180 | 2 | 28.0 mi | |
| Curlew Conservation Center |
349 | 2 | 30.7 mi | |
| Republic City of |
1,673 | 1 | 31.7 mi | |
| Curlew Kai Homeowner Water System |
133 | 1 | 35.6 mi | |
| Orient Water Company |
167 | 4 | 42.2 mi | |
| Curlew Water & Sewer District |
316 | 0 | 44.3 mi | |
| Fourth of July Creek Estates |
29 | 0 | — |
Non-community systems in Ferry County (22: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hartmans Log Cabin Resort INC |
397 | 1 | 0 | |
|
Swan Lake Campground |
44 | 0 | 0 | |
|
Columbia Cedar |
70 | 0 | 0 | |
|
Key Mill Facility |
65 | 0 | 0 | |
|
Ferry County Fairgrounds |
227 | 1 | 0 | |
|
North Lake RV Park |
17 | 0 | 0 | |
|
Carr Group |
11 | 1 | 0 | |
|
Kpm Water System |
12 | 1 | 0 | |
|
Curlew Lake State Park |
779 | 0 | 0 | |
|
Watering Hole, the |
29 | 0 | 0 | |
|
Black Beach Resort |
81 | 1 | 0 | |
|
Fishermans Cove |
19 | 0 | 0 | |
|
Tiffanys Resort |
70 | 0 | 0 | |
|
K2 Mine |
25 | 0 | 0 | |
|
Danville Outpost |
87 | 1 | 0 | |
|
US Border Station Laurier |
99 | 0 | 0 | |
|
US Border Station Danville |
171 | 1 | 0 | |
|
Park Addition Water Association |
11 | 0 | 0 | |
|
Torboy Industrial Park |
66 | 0 | 0 | |
|
Salishan Water System |
43 | 0 | 0 | |
|
Trailside Good Eats & Gifts |
27 | 0 | 0 | |
|
Curlew Lake Heights Water System |
22 | 1 | 0 |
About this data
Water systems are matched to Ferry County, nearest to Twin Lakes first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.