All water systems in Oregon
2,555 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Condon, City of Gilliam County |
742 | 1 | 0 | |
|
Black Butte Ranch Corporation Deschutes County |
740 | 0 | 0 | |
|
Laidlaw Water District Deschutes County |
740 | 2 | 0 | |
|
Sun Mountain Water System LLC Deschutes County |
740 | 1 | 1 | |
|
Elmira High/elementary Lane County |
735 | 1 | 1 | |
|
Chiloquin Municipal Water Dept Klamath County |
730 | 4 | 1 | |
|
Monroe, City of Benton County |
723 | 5 | 1 | |
|
Seven Oak Middle School Linn County |
722 | 1 | 0 | |
|
Weston, City of Umatilla County |
714 | 2 | 0 | |
|
Oprd Cline Falls State Park Deschutes County |
712 | 1 | 0 | |
|
Powers, City of Coos County |
712 | 1 | 0 | |
|
Hiland WC Penticton/college Park Marion County |
710 | 4 | 0 | |
|
Golden Enterprises Yamhill County |
700 | 1 | 0 | |
|
Mulino Water District Clackamas County |
700 | 2 | 0 | |
|
Pisgah Public Market Lane County |
700 | 0 | 0 | |
|
Oprd Cascadia State Park Linn County |
670 | 0 | 0 | |
|
Canyon City Water Department Grant County |
666 | 3 | 1 | |
|
Pleasant Valley Elementary Multnomah County |
650 | 2 | 0 | |
|
Short Stop #1 Umatilla County |
650 | 3 | 1 | |
|
Echo, City of Umatilla County |
632 | 1 | 0 | |
|
Arlington City Water Supply Gilliam County |
628 | 2 | 0 | |
|
EZ Trip #1232 Linn County |
625 | 0 | 0 | |
|
Gaston, City of Washington County |
625 | 2 | 0 | |
|
Usfs Diamond Lake Rec Area Douglas County |
617 | 0 | 0 | |
|
Dufur, City of Wasco County |
610 | 2 | 1 | |
|
Beaver Water District Tillamook County |
600 | 4 | 0 | |
|
Elk City Water District Jackson County |
600 | 1 | 0 | |
|
Gales Creek Shell & Grocery Washington County |
600 | 0 | 0 | |
|
Halsey Shell Linn County |
600 | 0 | 0 | |
|
Mapleton Water District Lane County |
600 | 8 | 0 | |
|
Marcola Water District Lane County |
600 | 2 | 0 | |
|
Neahkahnie Water District Tillamook County |
600 | 4 | 0 | |
|
Oprd Cove Palisades Crooked River Jefferson County |
600 | 0 | 0 | |
|
Riverbend Mobile Home Park Clackamas County |
600 | 2 | 0 | |
|
Stafford Elementary Clackamas County |
600 | 0 | 0 | |
|
Avion WC Red Cloud Crook County |
585 | 0 | 0 | |
|
Kla-Mo-Ya Casino Chilloqun · County |
580 | 1 | 0 | |
|
Olney-Walluski Water Assn Clatsop County |
575 | 3 | 0 | |
|
South Umpqua Water Association Douglas County |
575 | 3 | 1 | |
|
Thousand Trails INC Deschutes County |
575 | 1 | 0 | |
|
Barton Food Mart Clackamas County |
570 | 1 | 0 | |
|
Hiland WC Illahe Golf Club Estates Marion County |
561 | 6 | 0 | |
|
Falcon Heights Klamath County |
559 | 4 | 1 | |
|
Big Valley Woods Water Corp Clackamas County |
550 | 0 | 0 | |
|
Cove, City of Union County |
550 | 0 | 0 | |
|
First Stop Mart Umatilla County |
550 | 1 | 1 | |
|
Water Wonderland Improv Dist 1 Deschutes County |
550 | 1 | 1 | |
|
Westport Water Association Clatsop County |
550 | 2 | 2 | |
|
Hidden Valley High Josephine County |
546 | 0 | 0 | |
|
Western Christian School Polk County |
540 | 2 | 1 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Oregon records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.