Water quality in San Ardo, California
San Ardo is in Monterey County. 311 active public water systems serve the county; 127 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 Monterey County
156 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Lake San Antonio MHP WS |
84 | 1 | 9.5 mi | |
| North Shore Estates WS |
60 | 0 | 9.6 mi | |
| San Lucas County Water District |
315 | 1 | 9.6 mi | |
| Bradley-Lockwood RD WS |
25 | 0 | 10.8 mi | |
| Valley Oaks MHP WS |
108 | 1 | 11.4 mi | |
| Hidden Views MHP WS |
65 | 0 | 15.1 mi | |
| Little Bear Water Company |
2,327 | 1 | 18.1 mi | |
| Cwsc King City San Jose |
14,046 | 0 | 18.1 mi | |
| Fort Hunter Liggett |
2,753 | 0 | 18.3 mi | |
| California Orchard WS |
150 | 0 | 22.7 mi | |
| Apple Ave WS #02 |
75 | 2 | 28.2 mi | |
| Greenfield, City of Greenfield |
18,967 | 1 | 28.2 mi | |
| Arroyo Seco Estates Mws |
70 | 2 | 29.4 mi | |
| San Vicente Mwc |
69 | 0 | 33.0 mi | |
| Royal Sierra Estates WS |
36 | 1 | 33.9 mi | |
| Arroyo Center WC |
130 | 0 | 34.7 mi | |
| New Camaldoli Hermitage WS |
33 | 1 | 35.1 mi | |
| Soledad, City of Soledad |
19,732 | 0 | 36.4 mi | |
| Pine ST WS #01 |
65 | 0 | 36.5 mi | |
| Tassajara Springs WS |
150 | 0 | 38.7 mi | |
| Camphora Apartments |
126 | 2 | 39.8 mi | |
| McCoy RD WS #05 |
92 | 1 | 39.9 mi | |
| Correctional Training Facility Soledad |
4,357 | 0 | 40.4 mi | |
| Esalen Institute WS |
246 | 0 | 40.7 mi | |
| Salinas Valley State Prison |
2,930 | 0 | 40.7 mi |
Non-community systems in Monterey County (154: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Monterey County, nearest to San Ardo 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.