Water quality for ZIP code 93940
ZIP 93940 covers Monterey, Del Rey Oaks, Del Monte Forest, and Pacific Grove 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 Monterey |
128,928 | 0 | 1.8 mi | |
| Seaside Municipal Water System |
2,800 | 0 | 2.6 mi | |
| Merrill Gardens Iris Canyon WS |
136 | 1 | 3.0 mi | |
| Cal AM Water Company Hidden Hills |
1,521 | 0 | 4.3 mi | |
| Tierra Vista Mwc |
54 | 1 | 4.6 mi | |
| Laguna Seca WC |
162 | 1 | 5.1 mi | |
| Outlook WA |
35 | 0 | 5.4 mi | |
| Marina Coast Water District |
38,918 | 0 | 5.5 mi | |
| Robley Property Mws |
92 | 1 | 5.6 mi | |
| Woodside WA |
45 | 1 | 5.9 mi | |
| Tierra Meadows HOA WS |
58 | 0 | 5.9 mi | |
| Tierra Verde Mwc |
48 | 1 | 6.0 mi | |
| Cal AM Water Company Toro |
1,442 | 0 | 6.2 mi | |
| Calera Canyon Heights HOA |
40 | 0 | 6.3 mi | |
| Cal AM Water Company Ambler Park |
1,370 | 0 | 7.1 mi | |
| Santa Lucia Preserve WS |
524 | 1 | 7.4 mi | |
| Carmel Riviera Mwc |
584 | 0 | 8.3 mi | |
| Vista del Toro WS |
92 | 2 | 8.6 mi | |
| Jost Post WA |
56 | 0 | 8.6 mi | |
| Bluffs WS |
120 | 0 | 8.8 mi | |
| Mesa del Toro Mwc |
90 | 0 | 8.9 mi | |
| Mount Toro Ranchos Mwa |
35 | 0 | 9.8 mi | |
| Cwsc Salinas Hills |
7,733 | 0 | 10.2 mi | |
| Hitchcock RD WS #01 |
35 | 0 | 10.2 mi | |
| Z Ranch Mwc |
62 | 0 | 10.4 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.