PFAS Contamination

PFAS in Oregon Drinking Water

Ranked by number of PFAS compounds detected · Data from EPA SDWIS & UCMR

104

Cities Tested

Exceeds Limit

% Exceeds Limit

0.5 compounds

State Avg

▼ 13% vs national

vs National

205

Health Violations

Analysis

PFAS in Oregon: what the data shows

Oregon has 104 cities with PFAS monitoring data from the EPA's UCMR 5 program. PFAS ("forever chemicals") were detected in 25 of those cities (24%), with some cities exceeding the EPA's 2024 maximum contaminant levels of 4 ppt. The state average is better than the national average. 8 cities exceed the EPA MCL for at least one PFAS compound. PFAS are linked to cancer, immune system disruption, and developmental issues. The 2024 EPA rule requires water systems exceeding the MCL to notify customers and reduce levels by 2029. PFAS data comes from the EPA's Unregulated Contaminant Monitoring Rule 5 (UCMR 5), which required large water systems to test for 29 PFAS compounds between 2023–2025. Not all systems have completed testing — cities without data may still have PFAS present.

Comparison

Cities exceeding EPA MCL (4 ppt each)

Oregon

8 of 104 cities

← ▼ 13% below national rate (better)

National avg

21%

1662 of 7853 cities

City Map

PFAS data across Oregon

Each dot is a city, colored by overall water quality grade. PFAS-tested cities are shown; those exceeding the 4 ppt EPA MCL appear in red. Size reflects population served.

Worst Offenders

Top 10 cities by pfas level in Oregon

Highest PFAS levels (compounds)

All Cities

All Oregon cities ranked by pfas level

#	City	Level	Exceeds?	Violations	Grade
1	Springfield	9 compounds	Yes	19	F
2	Hermiston	6 compounds	Yes	67	F
3	Bend	4 compounds	Yes	116	F
4	Klamath Falls	3 compounds	Yes	36	F
5	Milton-Freewater	3 compounds	Yes	12	F
6	Happy Valley	2 compounds	Yes	17	F
7	Sherwood	2 compounds	No	7	B-
8	Milwaukie	1 compounds	Yes	1	F
9	Lake Oswego	1 compounds	No	20	D
10	Keizer	1 compounds	No	7	C
11	The Dalles	1 compounds	No	54	F
12	St Helens	1 compounds	No	33	F
13	Pendleton	1 compounds	No	43	F
14	Madras	1 compounds	No	16	B+
15	Ontario	1 compounds	No	5	B-
16	Prineville	1 compounds	No	56	F
17	Molalla	1 compounds	No	75	F
18	Independence	1 compounds	No	6	B
19	Umatilla	1 compounds	No	13	D
20	Estacada	1 compounds	No	119	F
21	Reedsport	1 compounds	No	8	C-
22	Lafayette	1 compounds	No	16	C-
23	Hubbard	1 compounds	No	30	F
24	Mt. Angel	1 compounds	No	5	B
25	Dundee	1 compounds	Yes	3	D+
26	Portland	0 compounds	No	118	F
27	Beaverton	0 compounds	No	10	F
28	Salem	0 compounds	No	108	F
29	Eugene	0 compounds	No	178	F
30	Medford	0 compounds	No	44	F
31	Hillsboro	0 compounds	No	7	F
32	Gresham	0 compounds	No	0	B
33	Corvallis	0 compounds	No	38	F
34	Tigard	0 compounds	No	3	C
35	Albany	0 compounds	No	35	F
36	Clackamas	0 compounds	No	21	D
37	Roseburg	0 compounds	No	35	F
38	Redmond	0 compounds	No	35	D
39	Grants Pass	0 compounds	No	78	F
40	Coos Bay	0 compounds	No	14	D+
41	Newberg	0 compounds	No	270	F
42	Mcminnville	0 compounds	No	1	B+
43	Oregon City	0 compounds	No	14	D
44	Woodburn	0 compounds	No	50	F
45	West Linn	0 compounds	No	15	F
46	Tualatin	0 compounds	No	0	A
47	Forest Grove	0 compounds	No	2	B+
48	Wilsonville	0 compounds	No	10	C+
49	Ashland	0 compounds	No	15	D
50	Lincoln City	0 compounds	No	1	B+
51	Central Point	0 compounds	No	68	D
52	Lebanon	0 compounds	No	16	F
53	Canby	0 compounds	No	21	D
54	Astoria	0 compounds	No	45	F
55	Dallas	0 compounds	No	4	B-
56	Troutdale	0 compounds	No	2	A-
57	Sandy	0 compounds	No	161	F
58	Hood River	0 compounds	No	13	D+
59	Cornelius	0 compounds	No	5	F
60	Florence	0 compounds	No	6	A-
61	Monmouth	0 compounds	No	18	D
62	La Grande	0 compounds	No	7	B-
63	Gladstone	0 compounds	No	8	C
64	Cottage Grove	0 compounds	No	173	F
65	Tillamook	0 compounds	No	38	F
66	Fairview	0 compounds	No	20	D
67	Silverton	0 compounds	No	18	C
68	Baker City	0 compounds	No	4	C+
69	Sweet Home	0 compounds	No	83	B-
70	Newport	0 compounds	No	29	F
71	Eagle Point	0 compounds	No	1	C+
72	Scappoose	0 compounds	No	84	F
73	Warrenton	0 compounds	No	2	B+
74	Stayton	0 compounds	No	2	B+
75	Winston	0 compounds	No	9	B
76	Sutherlin	0 compounds	No	6	B
77	Seaside	0 compounds	No	27	F
78	Sheridan	0 compounds	No	5	D
79	Brookings	0 compounds	No	19	D
80	Myrtle Creek	0 compounds	No	55	D+
81	Talent	0 compounds	No	3	B-
82	Seal Rock	0 compounds	No	2	A
83	Odell	0 compounds	No	6	B-
84	Phoenix	0 compounds	No	0	A-
85	Boardman	0 compounds	No	0	C+
86	Veneta	0 compounds	No	2	A-
87	Terrebonne	0 compounds	No	28	D
88	Gleneden Beach	0 compounds	No	2	A-
89	Creswell	0 compounds	No	13	C+
90	Coquille	0 compounds	No	57	F
91	Philomath	0 compounds	No	35	B+
92	Harrisburg	0 compounds	No	37	D
93	Wood Village	0 compounds	No	9	B
94	Warm Springs	0 compounds	No	89	F
95	Sunriver	0 compounds	No	5	A+
96	Aumsville	0 compounds	No	12	A
97	Toledo	0 compounds	No	0	A
98	Bandon	0 compounds	No	119	F
99	Corbett	0 compounds	No	10	C-
100	Lakeview	0 compounds	No	2	D
101	Yamhill	0 compounds	No	53	F
102	Donald	0 compounds	No	14	A
103	Falls City	0 compounds	No	3	B-
104	Adair Village	0 compounds	No	12	C

FAQ

Frequently asked questions about pfas in Oregon

Does Oregon tap water contain PFAS?

PFAS were detected in 25 of 104 Oregon cities tested under EPA's UCMR 5 program. 8 cities exceed the 2024 EPA MCL of 4 ppt for individual PFAS compounds.

How can I remove PFAS from my drinking water in Oregon?

Reverse osmosis (RO) systems are the most effective at removing PFAS, typically removing 90%+ of compounds. High-quality activated carbon block filters (NSF 58-certified for RO, or NSF 53 for solid carbon) also provide significant reduction. Standard pitcher filters vary widely in PFAS removal.

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