Water quality for ZIP code 92391
ZIP 92391 covers Lake Arrowhead and Crestline 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 |
|---|---|---|---|---|
| Strawberry Lodge Mwc |
381 | 1 | 0.7 mi | |
| Lacsd Rimforest |
717 | 0 | 0.8 mi | |
| Clawa |
2,320 | 0 | 1.5 mi | |
| Upper Little Bear Mountain Club |
72 | 1 | 1.6 mi | |
| Dogwood Blue Jay Cyn Imp |
232 | 1 | 1.7 mi | |
| Crestline Village Cwd Division 10 |
11,650 | 0 | 2.4 mi | |
| Lake Arrowhead Csd |
7,038 | 0 | 2.8 mi | |
| Arrowhead Villas Mutual Service Company |
2,644 | 0 | 2.9 mi | |
| Deer Lodge Water System |
745 | 0 | 3.1 mi | |
| Sky Forest Mwc |
492 | 2 | 3.3 mi | |
| Camp Waterman Mwc |
55 | 1 | 3.6 mi | |
| Cdf Pilot Rock Conservation Camp |
65 | 1 | 3.6 mi | |
| Valley View Park Mwc |
499 | 1 | 4.0 mi | |
| Valley of Enchantment Mwc |
2,471 | 1 | 4.1 mi | |
| Sbdno County Service Area 70 Cedar Glen |
1,240 | 1 | 4.2 mi | |
| Cedarpines Park Mwc |
2,458 | 0 | 5.3 mi | |
| Smiley Park Country Club |
370 | 1 | 6.3 mi | |
| Running Springs Water District |
5,268 | 1 | 7.3 mi | |
| San Bernardino City San Bernardin0 |
214,665 | 0 | 7.7 mi | |
| East Valley Water District |
108,600 | 0 | 8.1 mi | |
| Muscoy Mwc No. 1 |
13,000 | 1 | 8.7 mi | |
| Arrowbear Park Cwd |
1,396 | 0 | 8.8 mi | |
| Green Valley Mwc |
2,993 | 1 | 9.1 mi | |
| Devore WC |
1,574 | 0 | 10.0 mi | |
| Gilbert Street Complex |
124 | 2 | 10.2 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.