Oregon

902 Utilities
Serving: 4,057,000
Data available: 2014-2019
Contaminants Found: 55

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

Below are utilities in Oregon serving over 10,000 people, listed alphabetically. Click the "more" button below to get the full list of utilities serving over 10,000 people.

Large utilities in Oregon

Utility	Location	People Served
Ashland Water Department	Ashland, OR	20,700
Avion Water Company - Avion	Bend, OR	31,700
Bend Water Department	Bend, OR	62,091
Canby Utility	Canby, OR	16,866
City of Albany	Albany, OR	56,100
City of Beaverton	Beaverton, OR	70,000
City of Central Point	Central Point, OR	17,025
City of Cornelius	Cornelius, OR	12,165
City of Corvallis	Corvallis, OR	56,000
City of Dallas	Dallas, OR	14,700
City of Forest Grove	Forest Grove, OR	23,080
City of Gladstone	Gladstone, OR	12,000
City of Grants Pass	Grants Pass, OR	37,088
City of Hermiston	Hermiston, OR	18,200
City of Hillsboro	Hillsboro, OR	88,243
City of Keizer	Keizer, OR	37,505
City of La Grande	La Grande, OR	13,245
City of Lebanon	Lebanon, OR	15,518
City of Milwaukie	Milwaukie, OR	20,500
City of Newberg	Newberg, OR	23,795
City of Newport	Newport, OR	10,160
City of Ontario	Ontario, OR	14,465
City of Pendleton	Pendleton, OR	17,310
City of Roseburg	Roseburg, OR	28,800
City of Sherwood	Sherwood, OR	19,505
City of St. Helens	St Helens, OR	13,225
City of The Dalles	The Dalles, OR	12,494
City of Tigard	Tigard, OR	60,236
City of Troutdale	Troutdale, OR	16,020
City of Tualatin	Tualatin, OR	26,879

Utilities that accumulated/accrued the most violation points as of April 2019 to March 2021 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.

Utility	Location	People Served	Violation Points
Trollers Cove Water Association	Tidewater, OR	32	101
London Water Co-op	Cottage Grove, OR	63	78
Manzanita Hills Subdivision	Shady Cove, OR	27	65
Richland, City of	Richland, OR	245	55
Weiss Estates Water System	Bandon, OR	36	49
Skyview Acres Water Company	Sandy, OR	200	47
Midland Water Association	Clatskanie, OR	160	41
Dexter Oaks Co-op	Dexter, OR	75	35
Adrian, City of	Adrian, OR	180	34
Monroe, City of	Monroe, OR	615	32
Swisshome Village	Swisshome, OR	36	26
Youngs River Lewis & Clark Water District	Astoria, OR	2,530	25
Bolder City Water System	Jacksonville, OR	60	21
Sumpter, City of	Sumpter, OR	205	20
Mcnulty Water People's Utility District	St. Helens, OR	2,500	18
Monument, City of	Monument, OR	130	15
Laurelwood Water Users	Gaston, OR	200	13
Tooley Water District	Newberg, OR	42	12
Elderberry Nehalem Ws	Seaside, OR	140	12
Paradise/rogue Meadows Ws	Clackamas, OR	165	11
Caseys Riverside Park	Westfir, OR	84	11
Sunset Lake Rv Park	Redmond, OR	170	10
Glide Water Association	Glide, OR	1,200	10
Hawks Point	Eugene, OR	75	10
Shorewood Estates	Albany, OR	148	10
Raintree Estates	Corvallis, OR	50	10
Young Life	Antelope, OR	482	10
Mount Terrace Mobile Home Park	Culver City, OR	60	10
Brewster Community Homeowners	Salem, OR	50	10
Country Club Estates Water District	Coos Bay, OR	45	10

Large utilities that accumulated/accrued the most violation points as of April 2019 to March 2021 in Oregon

Utility	Location	People Served	Violation Points
Sandy, City of	Sandy, OR	10,655	6
Portland Water Bureau	Portland, OR	614,059	5
Silverton, City of	Silverton, OR	10,325	3
City of Milwaukie	Milwaukie, OR	20,500	2
City of Cornelius	Cornelius, OR	12,165	1
Suburban East Salem WD	Salem, OR	13,600	1
Klamath Falls Water Department	Klamath Falls, OR	40,475	1
City of Albany	Albany, OR	56,100	1
City of Beaverton	Beaverton, OR	70,000	1

Contaminants found in Oregon above health guidelines

	Found above health guidelines			Found
Contaminant	# of Utilities	People Served		# of Utilities	People Served
Total trihalomethanes (TTHMs)		434	3,815,197			436	3,820,141
Haloacetic acids (HAA5)		331	3,688,342			331	3,688,342
Chromium (hexavalent)		82	2,745,196			88	2,846,019
Haloacetic acids (HAA9)		83	2,686,686			93	2,821,399
Nitrate		502	2,052,583			658	3,470,007
Nitrate and nitrite		249	1,478,551			315	2,822,353
Arsenic		240	1,156,059			240	1,156,059
Chlorate		17	719,696			71	2,274,483
Radium, combined (-226 & -228)		121	701,047			121	701,047
Radon		3	248,909			3	248,909
Uranium		68	87,800			98	374,302
Bromate		5	86,571			6	113,450
Tetrachloroethylene (perchloroethylene)		10	68,010			10	68,010
Trichloroethylene		1	37,505			2	37,583
Manganese		1	37,505			89	2,638,016
Cadmium		2	1,530			2	1,530
Vanadium		1	1,505			87	2,821,349
Antimony		1	60			10	5,641
Thallium		1	50			1	50

Contaminants found in Oregon above legal limits

Contaminant	People Served
Arsenic	8	5,637
Haloacetic acids (HAA5)	2	81
Total trihalomethanes (TTHMs)	2	72

Oregon

902 Utilities

Serving: 4,057,000

Data available: 2014-2019

Contaminants Found: 55

Large utilities in Oregon

Utilities that accumulated/accrued the most violation points as of April 2019 to March 2021 in Oregon

Large utilities that accumulated/accrued the most violation points as of April 2019 to March 2021 in Oregon

Contaminants found in Oregon above health guidelines

Contaminants found in Oregon above legal limits