Water quality for ZIP code 97640
Lake County, Oregon, one of 8 ZIP codes in the county. 19 active public water systems serve the county; 17 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Lake County
2 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Christmas Valley Domestic WS |
950 | 1 | 27.0 mi | |
| Lakeview, Town of |
2,476 | 10 | 48.2 mi |
Non-community systems in Lake County (16: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Summer Lake Wildlife Mngmt |
30 | 3 | 1 | |
|
Cowboy Dinner Tree |
45 | 3 | 0 | |
|
Silverlake Market |
100 | 1 | 0 | |
|
Usfs Silver Lake RS |
30 | 3 | 1 | |
|
North Lake School SD 14 |
260 | 1 | 1 | |
|
Waterin Hole,the |
25 | 3 | 1 | |
|
Oprd Fort Rock State Park |
60 | 1 | 0 | |
|
Coyote Ridge Campground |
45 | 1 | 0 | |
|
Juniper Reservoir RV Resort |
30 | 2 | 0 | |
|
Hunters Hot Springs Resort |
50 | 3 | 0 | |
|
Lds Lakeview Chapel |
25 | 4 | 1 | |
|
Hart Mountain Store |
35 | 0 | 0 | |
|
Blm Lakeview Airbase |
40 | 3 | 1 | |
|
Union School |
43 | 5 | 2 | |
|
Oprd Goose Lake Recreation |
150 | 0 | 0 | |
|
Silver Lake Cafe and Bar |
60 | 1 | 0 |
About this data
Water systems are matched to Lake 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 Oregon 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.