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

COUNTY WATER-SYSTEM LEDGER

Siskiyou, California

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

Systems4active CWS · pop. 2,500+
Population served16,919reported total; may overlap
Current violation flag100.0%4 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Siskiyou

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

Water systemPopulation servedPrimary sourceCurrent export status
Yreka, City OfCA47100117,825Surface waterCurrent health-based flag
Mt. Shasta, City OfCA47100083,642Ground waterCurrent health-based flag
Lake Shastina C.S.DCA47100132,790Ground waterCurrent health-based flag
Weed, City OfCA47100092,662Ground waterCurrent monitoring/reporting flag

02 / SOURCE MIX

Ground water3 systems · 9,094 served
Surface water1 systems · 7,825 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.