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

COUNTY WATER-SYSTEM LEDGER

Multnomah, Oregon

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

Systems7active CWS · pop. 2,500+
Population served839,065reported total; may overlap
Current violation flag14.3%1 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Multnomah

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

Water systemPopulation servedPrimary sourceCurrent export status
Portland Water BureauOR4100657666,200Surface waterCurrent health-based flag
Gresham, City OfOR410035773,932Surface water purchasedNo current violation flagged
Rockwood PudOR410066865,443Surface water purchasedNo current violation flagged
Troutdale, City OfOR410090116,185Ground waterNo current violation flagged
Fairview, City OfOR41002969,963Ground waterNo current violation flagged
Wood Village, City OfOR41009044,388Ground waterNo current violation flagged
Corbett Water DistrictOR41003592,954Surface waterNo current violation flagged

02 / SOURCE MIX

Surface water2 systems · 669,154 served
Surface water purchased2 systems · 139,375 served
Ground water3 systems · 30,536 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.