Water quality in Oak Glen, California
Oak Glen is in San Bernardino County. 321 active public water systems serve the county; 146 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in San Bernardino County
146 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Oak Glen Domestic Water |
130 | 1 | 0.8 mi | |
| Cdf Oak Glen Conservation Camp |
59 | 1 | 3.3 mi | |
| Forest Park Mwc |
406 | 3 | 3.5 mi | |
| Big Pine Tract |
300 | 1 | 3.8 mi | |
| Fallsvale Service Company |
1,046 | 2 | 4.5 mi | |
| Mill Creek Msc |
315 | 0 | 4.6 mi | |
| Glen Martin Mwc |
450 | 1 | 7.1 mi | |
| Brookside MHP |
65 | 7 | 7.3 mi | |
| Rocky Comfort Mutual Water CO |
130 | 1 | 8.0 mi | |
| Western Heights Water Company |
7,735 | 0 | 8.5 mi | |
| Barton Flats Water System |
11 | 1 | 10.3 mi | |
| San Bernardino Valley WD |
109,608 | 0 | 11.5 mi | |
| Redlands City Mud-Water Div Redlands |
78,025 | 0 | 11.9 mi | |
| Arrowbear Park Cwd |
1,396 | 0 | 13.9 mi | |
| Running Springs Water District |
5,268 | 1 | 14.3 mi | |
| East Valley Water District |
108,600 | 0 | 14.3 mi | |
| Big Bear Lake Dwp Big Bear System |
26,164 | 0 | 14.6 mi | |
| North Shore Mwc |
7 | 0 | 14.7 mi | |
| Smiley Park Country Club |
370 | 1 | 14.7 mi | |
| Olive Dell Ranch |
45 | 3 | 15.2 mi | |
| Green Valley Mwc |
2,993 | 1 | 15.3 mi | |
| Dwp Fawnskin |
1,271 | 0 | 15.6 mi | |
| Loma Linda, City of Loma Linda |
25,208 | 0 | 16.5 mi | |
| Big Bear City Csd Big Bear City |
12,738 | 0 | 16.6 mi | |
| Loma Linda University |
455 | 0 | 17.1 mi |
Non-community systems in San Bernardino County (174: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to San Bernardino County, nearest to Oak Glen 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
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 California 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.