Water quality for ZIP code 93923
ZIP 93923 covers Carmel-by-the-Sea and Monterey in Monterey County, California, one of 31 ZIP codes in the 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 |
|---|---|---|---|---|
| Cal AM Water Company Garrapata |
152 | 0 | 4.3 mi | |
| Brandon Creek Mws |
41 | 1 | 4.4 mi | |
| Tierra Vista Mwc |
54 | 1 | 5.3 mi | |
| Carmel Riviera Mwc |
584 | 0 | 5.6 mi | |
| Cal AM Water Company Monterey |
128,928 | 0 | 7.7 mi | |
| Cal AM Water Company Hidden Hills |
1,521 | 0 | 8.4 mi | |
| Canada Woods WC |
356 | 0 | 8.4 mi | |
| Woodside WA |
45 | 1 | 8.8 mi | |
| Outlook WA |
35 | 0 | 9.0 mi | |
| Calera Canyon Heights HOA |
40 | 0 | 9.3 mi | |
| Robley Property Mws |
92 | 1 | 9.6 mi | |
| Merrill Gardens Iris Canyon WS |
136 | 1 | 9.7 mi | |
| Vista del Toro WS |
92 | 2 | 9.7 mi | |
| Laguna Seca WC |
162 | 1 | 9.9 mi | |
| Tularcitos Mwc |
90 | 0 | 10.0 mi | |
| Mesa del Toro Mwc |
90 | 0 | 10.0 mi | |
| Cal AM Water Company Toro |
1,442 | 0 | 10.1 mi | |
| Jost Post WA |
56 | 0 | 10.2 mi | |
| Tierra Meadows HOA WS |
58 | 0 | 10.5 mi | |
| Tierra Verde Mwc |
48 | 1 | 10.6 mi | |
| Princes Camp Resort WS |
126 | 0 | 11.1 mi | |
| Seaside Municipal Water System |
2,800 | 0 | 11.2 mi | |
| Cal AM Water Company Ambler Park |
1,370 | 0 | 11.4 mi | |
| Valley Creek MHP WS |
129 | 1 | 11.4 mi | |
| Asoleado Mwc |
101 | 0 | 12.0 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, 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.