Water quality for ZIP code 92399
ZIP 92399 covers Yucaipa, Oak Glen, and Cherry Valley in San Bernardino County, California, one of 91 ZIP codes in the 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 | 3.6 mi | |
| Mill Creek Msc |
315 | 0 | 4.8 mi | |
| Brookside MHP |
65 | 7 | 5.0 mi | |
| Forest Park Mwc |
406 | 3 | 5.6 mi | |
| Rocky Comfort Mutual Water CO |
130 | 1 | 5.6 mi | |
| Western Heights Water Company |
7,735 | 0 | 5.7 mi | |
| Cdf Oak Glen Conservation Camp |
59 | 1 | 6.0 mi | |
| Big Pine Tract |
300 | 1 | 6.2 mi | |
| Fallsvale Service Company |
1,046 | 2 | 7.1 mi | |
| Glen Martin Mwc |
450 | 1 | 7.7 mi | |
| San Bernardino Valley WD |
109,608 | 0 | 8.6 mi | |
| Redlands City Mud-Water Div Redlands |
78,025 | 0 | 9.2 mi | |
| East Valley Water District |
108,600 | 0 | 12.2 mi | |
| Olive Dell Ranch |
45 | 3 | 12.4 mi | |
| Barton Flats Water System |
11 | 1 | 12.5 mi | |
| Arrowbear Park Cwd |
1,396 | 0 | 13.3 mi | |
| Running Springs Water District |
5,268 | 1 | 13.4 mi | |
| Smiley Park Country Club |
370 | 1 | 13.6 mi | |
| Loma Linda, City of Loma Linda |
25,208 | 0 | 13.8 mi | |
| Loma Linda University |
455 | 0 | 14.4 mi | |
| Green Valley Mwc |
2,993 | 1 | 14.9 mi | |
| North Shore Mwc |
7 | 0 | 15.6 mi | |
| Big Bear Lake Dwp Big Bear System |
26,164 | 0 | 16.3 mi | |
| Dwp Fawnskin |
1,271 | 0 | 16.7 mi | |
| Gilbert Street Complex |
124 | 2 | 16.9 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, 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
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 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.