Water quality in Del Mar, California
Del Mar is in San Diego 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 |
|---|---|---|---|---|
| Santa FE I.d. |
21,539 | 0 | 4.2 mi | |
| San Dieguito WD |
40,405 | 1 | 6.0 mi | |
| Olivenhain Mwd |
86,458 | 0 | 7.2 mi | |
| Del Dios Mutual Water Company |
330 | 3 | 11.2 mi | |
| San Diego, City of San Diego |
1,408,937 | 0 | 11.4 mi | |
| Carlsbad Mwd |
96,371 | 0 | 11.9 mi | |
| Poway, City of Poway |
49,888 | 0 | 13.4 mi | |
| Rincon del Diablo Mwd (id-1) |
28,427 | 0 | 13.4 mi | |
| Vallecitos WD |
114,700 | 1 | 14.3 mi | |
| Rincon del Diablo Mwd (id-A) |
5,016 | 0 | 14.9 mi | |
| Vista Irrigation District |
134,501 | 0 | 15.9 mi | |
| San Diego County Water Authority |
0 | 0 | 16.2 mi | |
| Escondido, City of Escondido |
137,044 | 0 | 16.6 mi | |
| Oceanside, City of Oceanside |
174,340 | 0 | 18.2 mi | |
| Nas North Island & Nab Coronado |
421 | 0 | 18.5 mi | |
| San Pasqual Academy |
298 | 0 | 20.0 mi | |
| Lakeside WD |
35,500 | 1 | 20.5 mi | |
| Oakvale Park |
260 | 3 | 20.9 mi | |
| Helix Water District |
277,918 | 0 | 21.0 mi | |
| Lake Wohlford Resort |
250 | 0 | 21.3 mi | |
| Ramona Municipal WD |
36,455 | 0 | 21.9 mi | |
| Valley Center Mwd |
30,166 | 0 | 22.9 mi | |
| Padre Dam Mwd |
93,980 | 0 | 24.4 mi | |
| Sweetwater Authority |
184,915 | 0 | 24.5 mi | |
| Camp Pendleton (south) |
44,555 | 0 | 25.0 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, nearest to Del Mar 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.
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.