Tapcensus

All water systems in Oregon

2,555 systems

SystemServesStatusRules violated, 3 yrUnresolved
Portland Water Bureau
Multnomah County 		666,200 1 1
Tualatin Valley Water District
Washington County 		224,600 0 0
Salem Public Works
Marion County 		199,820 1 0
Eugene Water & Electric Board
Lane County 		176,000 0 0
Medford Water Commission
Jackson County 		106,068 3 0
Hillsboro, City of
Washington County 		92,632 1 0
Beaverton, City of
Washington County 		88,045 1 0
Bend, City of
Deschutes County 		77,704 2 0
Gresham, City of
Multnomah County 		73,932 0 0
Rockwood Pud
Multnomah County 		65,443 0 0
Tigard, City of
Washington County 		62,500 2 0
Springfield Utility Board
Lane County 		62,100 0 0
Corvallis, City of
Benton County 		61,468 0 0
Albany, City of
Linn County 		57,997 0 0
Sunrise Water Authority
Clackamas County 		50,003 0 0
Klamath Falls Water Dept
Klamath County 		40,475 4 0
Lake Oswego Municipal Water
Clackamas County 		40,000 1 0
Keizer, City of
Marion County 		38,585 1 0
Redmond Water Department
Deschutes County 		38,208 0 0
Grants Pass, City of
Josephine County 		37,138 2 0
Avion WC Greater Avion
Deschutes County 		35,332 0 0
McMinnville Water & Light
Yamhill County 		34,515 1 0
Coos Bay North Bend Wtr Brd
Coos County 		34,500 1 0
Oregon City
Clackamas County 		33,940 0 0
Oak Lodge Water Services
Clackamas County 		30,000 2 0
Clackamas River Water
Clackamas County 		29,918 2 0
Woodburn, City of
Marion County 		29,455 3 1
Roseburg, City of
Douglas County 		28,800 1 1
Tualatin, City of
Washington County 		28,106 1 0
West Linn, City of
Clackamas County 		28,000 0 0
Forest Grove, City of
Washington County 		26,838 0 0
Wilsonville, City of
Clackamas County 		25,915 2 0
Newberg, City of
Yamhill County 		25,138 0 0
Ashland Water Department
Jackson County 		20,946 0 0
Milwaukie, City of
Clackamas County 		20,946 6 1
Lincoln City, City of
Lincoln County 		20,830 0 0
Sherwood, City of
Washington County 		20,781 1 0
Hermiston, City of
Umatilla County 		20,000 2 0
Clackamas River Water Clairmont
Clackamas County 		19,928 1 0
Central Point, City of
Jackson County 		19,785 1 0
Lebanon, City of
Linn County 		18,945 2 0
Canby Utility
Clackamas County 		18,754 1 0
Dallas, City of
Polk County 		17,911 1 0
Pendleton, City of
Umatilla County 		16,996 2 0
Troutdale, City of
Multnomah County 		16,185 1 0
Cornelius, City of
Washington County 		14,490 2 0
Ontario, City of
Malheur County 		14,465 0 0
Suburban East Salem WD
Marion County 		13,900 2 0
LA Grande, City of
Union County 		13,460 1 0
ST Helens, City of
Columbia County 		13,410 3 0
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.