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

COUNTY WATER-SYSTEM LEDGER

Madera, 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 served119,277reported total; may overlap
Current violation flag18.2%2 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Madera

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 MaderaCA201000266,560Ground waterNo current violation flagged
Chowchilla City Water DeptCA201000113,916Ground waterNo current violation flagged
Madera Valley Water CompanyCA20100106,494Ground waterNo current violation flagged
Riverstone/Rootcreek Water DistrictCA20100165,507Ground waterCurrent health-based flag
Yosemite Spring Park Util CoCA20100055,300Ground waterCurrent health-based flag
Cal Am - Bass LakeCA20100034,527Surface waterNo current violation flagged
Tesoro Viejo Master Mwc, Inc.CA20100173,885Surface waterNo current violation flagged
Cal Am - OakhurstCA20100073,693Ground waterNo current violation flagged
Valley State PrisonCA20108013,173Ground waterNo current violation flagged
Madera Co Md10A-Madera RanchosCA20100083,172Ground waterNo current violation flagged
Madera Co Csa 22C Gunner RanchCA20100193,050Ground waterNo current violation flagged

02 / SOURCE MIX

Ground water9 systems · 110,865 served
Surface water2 systems · 8,412 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.