Drinking Water Systems Reported for ZIP 92078
SAN MARCOS, California — 2 water systems are associated with this ZIP in EPA service-area data
Largest Reported System
OCOTILLO OASIS, LLC
PWSID: CA3700291
33 EPA violation records in the five-year period ending June 30, 2026
D
Several health-based records
TapScore compliance-history grade
Other Systems Reported for This ZIP
Wagon Wheel Mobile Home Park
70 served1 historical record1 recent
B