Water quality for ZIP code 92064
ZIP 92064 covers Poway, Santee, and San Diego in San Diego County, California, one of 115 ZIP codes in the county. 198 active public water systems serve the county; 83 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 Diego County
81 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Rincon del Diablo Mwd (id-A) |
5,016 | 0 | 6.6 mi | |
| Ramona Municipal WD |
36,455 | 0 | 7.8 mi | |
| San Pasqual Academy |
298 | 0 | 8.1 mi | |
| Del Dios Mutual Water Company |
330 | 3 | 8.5 mi | |
| Lakeside WD |
35,500 | 1 | 9.1 mi | |
| Rincon del Diablo Mwd (id-1) |
28,427 | 0 | 10.3 mi | |
| Escondido, City of Escondido |
137,044 | 0 | 10.4 mi | |
| Olivenhain Mwd |
86,458 | 0 | 10.6 mi | |
| San Diego County Water Authority |
0 | 0 | 11.3 mi | |
| Santa FE I.d. |
21,539 | 0 | 11.8 mi | |
| San Diego, City of San Diego |
1,408,937 | 0 | 12.7 mi | |
| Oakvale Park |
260 | 3 | 12.7 mi | |
| Padre Dam Mwd |
93,980 | 0 | 13.3 mi | |
| Lake Wohlford Resort |
250 | 0 | 13.4 mi | |
| Helix Water District |
277,918 | 0 | 14.1 mi | |
| Del Mar, City of Del Mar |
3,950 | 0 | 14.2 mi | |
| Rancho Santa Teresa MW Co. |
102 | 2 | 14.6 mi | |
| Vallecitos WD |
114,700 | 1 | 14.8 mi | |
| San Dieguito WD |
40,405 | 1 | 15.9 mi | |
| Valley Center Mwd |
30,166 | 0 | 18.3 mi | |
| Vista Irrigation District |
134,501 | 0 | 18.7 mi | |
| Carlsbad Mwd |
96,371 | 0 | 18.9 mi | |
| Alpine Oaks Estates LLC |
185 | 0 | 19.3 mi | |
| Willowside Terrace Water Association |
100 | 2 | 20.0 mi | |
| Lazy H Mutual Water Company |
117 | 0 | 21.4 mi |
Non-community systems in San Diego County (116: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to San Diego 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 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.