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STATE

Oregon

CONTAMINANTS

60

serves

3,694,000

data

2013-2024

UTILITIES

930

Overview

EWG's drinking water quality report for Oregon shows results of tests conducted by the water utilities in Oregon and provided to EWG by the Oregon Health Authority.

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

Large utilities in Oregon

Below are utilities in Oregon serving over 10,000 people, listed alphabetically.

UtilityLocationPeople Served
Ashland Water DepartmentAshland, OR20,700
Astoria, City ofAstoria, OR10,181
Avion Water Company - Greater AvionBend, OR32,265
Baker CityBaker City, OR10,349
Bend Water DepartmentBend, OR77,704
Canby UtilityCanby, OR18,754
City of AlbanyAlbany, OR54,945
City of BeavertonBeaverton, OR80,000
City of Central PointCentral Point, OR19,785
City of CorneliusCornelius, OR13,201
City of CorvallisCorvallis, OR56,000
City of DallasDallas, OR16,854
City of Forest GroveForest Grove, OR26,838
City of GladstoneGladstone, OR12,121
City of Grants PassGrants Pass, OR37,138
City of HermistonHermiston, OR19,696
City of HillsboroHillsboro, OR90,603
City of KeizerKeizer, OR38,585
City of La GrandeLa Grande, OR13,460
City of LebanonLebanon, OR18,945
City of MilwaukieMilwaukie, OR20,946
City of NewbergNewberg, OR25,138
City of NewportNewport, OR10,160
City of OntarioOntario, OR14,465
City of PendletonPendleton, OR17,169
City of RoseburgRoseburg, OR28,800
City of SherwoodSherwood, OR19,885
City of St. HelensSt Helens, OR13,410
City of The DallesThe Dalles, OR13,010
City of TigardTigard, OR62,500
City of TroutdaleTroutdale, OR16,185
City of TualatinTualatin, OR28,000
City of West LinnWest Linn, OR27,000
City of WilsonvilleWilsonville, OR25,915
City of WoodburnWoodburn, OR26,013
Clackamas River Water - ClackamasClackamas, OR29,918
Clackamas River Water - ClairmontClackamas, OR19,928
Coos Bay North Bend Water BoardCoos Bay, OR34,500
Cottage Grove, City ofCottage Grove, OR10,005
Cty of GreshamGresham, OR73,932
Deschutes Valley Water DistrictMadras, OR11,700
Eugene Water & Electric BoardEugene, OR176,000
Independence Water SystemIndependence, OR10,300
Klamath Falls Water DepartmentKlamath Falls, OR40,475
Lake Oswego Municipal WaterLake Oswego, OR40,000
Lincoln City Water DistrictLincoln City, OR20,830
McMinnville Water & LightMcminnville, OR34,515
Medford Water CommissionMedford, OR95,354
Molalla, City OfMolalla, OR10,298
Monmouth, City ofMonmouth, OR11,146
Oak Lodge Water DistrictMilwaukie, OR30,000
Oregon CityOregon City, OR33,940
Portland Water BureauPortland, OR666,200
Prineville, City ofPrineville, OR11,000
Redmond Water DepartmentRedmond, OR37,566
Rockwood People's Utilities DepartmentPortland, OR65,443
Salem Public WorksSalem, OR199,820
Sandy, City ofSandy, OR12,991
Silverton, City ofSilverton, OR10,484
Springfield Utility BoardSpringfield, OR62,100
Suburban East Salem WDSalem, OR13,900
Sunrise Water AuthorityHappy Valley, OR50,003
Tualatin Valley Water DistrictBeaverton, OR224,600
West Slope Water DistrictPortland, OR11,000

Utilities that accumulated/accrued the most violation points as of July 2021 to June 2024 in Oregon

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople ServedViolation Points
Galice Subdivision Water Co.Merlin, OR33339
London Water Co-opCottage Grove, OR63255
Trollers Cove Water AssociationTidewater, OR32173
Manzanita Hills SubdivisionShady Cove, OR3087
Monroe, City ofHarrisburg, OR61568
Mckee Bridge Mobile Home ParkMedford, OR4062
Skyview Acres Water CompanySandy, OR20045
Tooley Water DistrictNewberg, OR9741
Sumner Water Co-opCoos Bay, OR7540
Mapleton Water DistrictMapleton, OR60029
Richland, City ofRichland, OR16525
Scofield Mobile Home CourtNewport, OR3922
Taylors Grove Water WorksLyons, OR2822
Newberg-springs, City ofNewberg, OR13021
Cswa Oliver SpringNewberg, OR4020
Young LifeAntelope, OR49720
Golf Mobile CitySeattle, OR6018
Inn At Otter CrestOtter Rock, OR9017
Swisshome VillageMapleton, OR2415
Villadom Mobile Home ParkWalnut Creek, OR9615
Paradise/rogue Meadows WsClackamas, OR16515
Desert Mobile Home EstatesPortland, OR10014
Deer Island WaterworksSt Helens, OR9013
Canyon City Water DepartmentCanyon City, OR66611
Marshland Water AssociationClatskanie, OR7011
Big Spruce Mobile Home Park LLCEugene, OR8010
Garden Valley Water AssociationCoquille, OR8410
Lakewood Rv ParkWhite City, OR4510
U.S. Forest Service Toketee Ranger StationRoseburg, OR15010
Whaleshead Beach Resort, LlcBrookings, OR10810

Large utilities that accumulated/accrued the most violation points as of July 2021 to June 2024 in Oregon

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople ServedViolation Points
Sandy, City ofSandy, OR12,9915
Oak Lodge Water DistrictMilwaukie, OR30,0005
Portland Water BureauPortland, OR666,2005
City of WoodburnWoodburn, OR26,0133
City of TroutdaleTroutdale, OR16,1851
City of PendletonPendleton, OR17,1691
City of TualatinTualatin, OR28,0001
Medford Water CommissionMedford, OR95,3541

Contaminants found in Oregon above health guidelines

Found above health guidelines Found
Contaminant # of Utilities People Served # of Utilities People Served
Total trihalomethanes (TTHMs)4693,460,5294743,463,509
Haloacetic acids (HAA5)3383,252,1973413,272,651
Haloacetic acids (HAA9)922,914,758942,961,133
Chromium (hexavalent)661,993,427862,975,699
Arsenic1781,187,3541781,187,354
Nitrate441860,0557183,159,021
Nitrate & nitrite133520,9812272,542,277
Bromate6151,80010368,116
Perfluorohexane sulfonate (PFHXS)7116,8697116,869
Radium, combined (-226 & -228)82105,80486117,802
Perfluorooctane sulfonate (PFOS)1797,9151797,915
Perfluorooctanoic acid (PFOA)579,205579,205
Uranium, combined (pCi/L)5776,865113135,630
Tetrachloroethylene (perchloroethylene)872,986975,821
Manganese440,6591032,783,583
Chlorate525,623702,374,740
Radon113,201113,201
6:2 Fluorotelomer Sulfonic Acid (6:2 FTSA)110,298110,298
Perfluoropentane sulfonic acid (PFPeS)12891289
Cadmium110054,846
1,2-Dichloroethane170170

Contaminants found in Oregon above legal limits

Contaminant # of Utilities People Served

Arsenic		72,897

Total trihalomethanes (TTHMs)		2697

Haloacetic acids (HAA5)		4284

What filter type is right for you?

Water
Contaminants

view utility

Carbon Filters

Can reduce the levels of many common contaminants.

pros

  • Lower upfront cost
  • Reduced maintenance

cons

  • Does not remove all contaminants

Reverse Osmosis

Most effective at reducing contaminants.

pros

  • Most effective

cons

  • Higher upfront cost
  • Requires more maintenance
  • Wastes water

Other Considerations

Ion Exchange

Pros: Softens hard water, Reduces some contaminants

Cons: Doesn't remove all contaminants

Whole-House Filters

Pros: Useful for reducing radiologicals and TCE

Cons: Expensive to install and maintain, Risk of bacterial contamination

Distillation

Pros: Removes heavy metals and harmful microbes

Cons: Does not reduce most contaminants

view utility UNDERSTAND FILTER TECHNOLOGY

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