By State

PFAS Testing Results by State

EPA tested over 10,072water systems nationwide for PFAS. Browse results by state to see which communities exceed federal limits and how much of your state’s population is affected.

States + DC: 51
Systems exceeding limits: 1,673
Population affected: 77.9M

Sort by

State	Systems tested	Exceedances	Population affected	Details
Alabama	307	79	1.8M	View →
Alaska	30	4	332K	View →
Arizona	152	25	1.0M	View →
Arkansas	172	1	4.5K	View →
California	701	164	11.3M	View →
Colorado	165	13	529K	View →
Connecticut	63	35	1.7M	View →
Delaware	36	14	720K	View →
District of Columbia	3	0	-	View →
Florida	407	157	11.0M	View →
Georgia	255	42	1.7M	View →
Hawaii	45	0	-	View →
Idaho	61	3	169K	View →
Illinois	487	25	488K	View →
Indiana	230	19	462K	View →
Iowa	152	7	336K	View →
Kansas	103	5	77K	View →
Kentucky	231	32	1.3M	View →
Louisiana	268	7	441K	View →
Maine	41	5	56K	View →
Maryland	83	16	168K	View →
Massachusetts	263	106	2.2M	View →
Michigan	319	7	239K	View →
Minnesota	196	17	388K	View →
Mississippi	239	7	99K	View →
Missouri	232	9	305K	View →
Montana	45	2	25K	View →
Nebraska	53	4	108K	View →
Nevada	58	3	488K	View →
New Hampshire	51	16	312K	View →
New Jersey	265	155	6.8M	View →
New Mexico	73	5	103K	View →
New York	333	52	2.5M	View →
North Carolina	290	115	4.0M	View →
North Dakota	38	0	-	View →
Ohio	347	59	3.8M	View →
Oklahoma	166	13	355K	View →
Oregon	127	11	288K	View →
Pennsylvania	390	117	4.8M	View →
Rhode Island	29	10	266K	View →
South Carolina	165	68	2.4M	View →
South Dakota	49	2	16K	View →
Tennessee	277	37	998K	View →
Texas	1,152	102	8.4M	View →
Utah	129	3	396K	View →
Vermont	38	1	378	View →
Virginia	171	20	2.5M	View →
Washington	247	34	2.1M	View →
West Virginia	103	21	158K	View →
Wisconsin	202	23	296K	View →
Wyoming	33	1	10K	View →

Exceedance counts include water systems where the worst detected PFAS compound is above the federal EPA Maximum Contaminant Level. Systems still awaiting EPA UCMR 5 publication are not yet included.