EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Merced, California

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems11active CWS · pop. 2,500+
Population served231,899reported total; may overlap
Current violation flag63.6%7 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Merced

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
City Of MercedCA241000993,692Ground waterNo current violation flagged
City Of Los BanosCA241000547,419Ground waterCurrent health-based flag
City Of AtwaterCA241000129,479Ground waterNo current violation flagged
City Of LivingstonCA241000414,894Ground waterCurrent health-based flag
Winton Water & Sanitary DistCA24100109,745Ground waterCurrent health-based flag
Delhi CwdCA24100067,784Ground waterCurrent monitoring/reporting flag
City Of Dos PalosCA24100027,452Surface waterCurrent monitoring/reporting flag
City Of GustineCA24100036,110Ground waterCurrent health-based flag
Cal Am - MeadowbrookCA24100085,656Ground waterNo current violation flagged
Hilmar County Water DistrictCA24100125,504Ground waterNo current violation flagged
Planada CsdCA24100074,164Ground waterCurrent health-based flag

02 / SOURCE MIX

Ground water10 systems · 224,447 served
Surface water1 systems · 7,452 served
How to read the population total

It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.