Water quality for ZIP code 99140
ZIP 99140 covers Keller in Ferry County, Washington, one of 9 ZIP codes in the 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 | 24.0 mi | |
| Martin Creek Community Assn |
109 | 1 | 31.0 mi | |
| Curlew Conservation Center |
349 | 2 | 37.3 mi | |
| Republic City of |
1,673 | 1 | 37.3 mi | |
| Riverwood Water System |
43 | 0 | 41.8 mi | |
| Curlew Kai Homeowner Water System |
133 | 1 | 42.7 mi | |
| Lakeside Park |
180 | 2 | 43.5 mi | |
| Curlew Water & Sewer District |
316 | 0 | 53.3 mi | |
| Orient Water Company |
167 | 4 | 55.8 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 | |
|
Ferry County Fairgrounds |
227 | 1 | 0 | |
|
Key Mill Facility |
65 | 0 | 0 | |
|
Kpm Water System |
12 | 1 | 0 | |
|
Curlew Lake State Park |
779 | 0 | 0 | |
|
Black Beach Resort |
81 | 1 | 0 | |
|
Fishermans Cove |
19 | 0 | 0 | |
|
Tiffanys Resort |
70 | 0 | 0 | |
|
Columbia Cedar |
70 | 0 | 0 | |
|
North Lake RV Park |
17 | 0 | 0 | |
|
Carr Group |
11 | 1 | 0 | |
|
Watering Hole, the |
29 | 0 | 0 | |
|
K2 Mine |
25 | 0 | 0 | |
|
Park Addition Water Association |
11 | 0 | 0 | |
|
Danville Outpost |
87 | 1 | 0 | |
|
US Border Station Danville |
171 | 1 | 0 | |
|
US Border Station Laurier |
99 | 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, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.