EWG INVESTIGATION

Findings

About The Data

News Release

EWG Statement, 03/10/2008

Related News Clips

WHAT'S IN YOUR WATER?

Find Your Water Company

NATIONAL SUMMARY

Quality Varies Across the U.S.

CONTAMINANTS DATABASE

Find a Contaminant

Credits

Sign up to receive email updates from EWG

Return to National Report

State Ranking

Rank	State	Contams. detected	Contams. over health limits	Poplulation exposed to contams.	Population exposed over health- based limits
1	California*	145	64	49,824,189	46,852,770
2	Wisconsin	118	60	3,768,113	3,575,284
3	Florida	107	59	16,562,089	15,538,094
4	Illinois	90	58	11,198,631	10,614,995
5	North Carolina	107	56	6,501,832	6,179,490
6	Texas	105	56	19,588,430	17,486,112
7	Arizona	87	46	4,850,968	4,582,065
8	Pennsylvania	96	44	10,397,815	9,339,157
9	New Mexico	90	42	1,548,721	1,478,730
10	Nevada	100	41	2,214,147	2,173,655
11	New York	104	41	2,049,452	1,221,890
12	Ohio	92	41	10,062,663	9,655,568
13	Missouri	74	40	3,305,221	2,266,355
14	Minnesota	86	39	4,040,322	3,526,931
15	Idaho	54	39	949,891	709,060
16	Iowa	80	38	2,451,394	1,886,489
17	Indiana	70	37	4,267,358	3,671,628
18	Colorado	72	37	4,366,874	4,104,241
19	Nebraska	87	37	1,421,806	1,358,977
20	Maine	74	36	611,507	464,125
21	New Hampshire	80	36	767,605	709,180
22	Washington	84	36	5,568,278	4,744,830
23	Wyoming	57	35	304,744	235,222
24	Arkansas	88	35	3,049,009	2,818,461
25	New Jersey	84	33	7,549,458	6,230,258
26	Virginia	62	33	5,521,535	4,884,562
27	Delaware	70	33	758,089	561,982
28	Michigan	69	31	4,182,987	3,739,304
29	Tennessee	65	30	4,929,756	4,491,308
30	Kentucky	64	30	5,161,346	1,887,529
31	Utah	57	30	3,590,242	3,310,907
32	Alabama	63	28	4,155,228	3,114,821
33	North Dakota	46	28	528,128	473,122
34	Alaska	75	26	459,864	407,213
35	Montana	54	26	634,029	468,499
36	Oklahoma	56	25	3,071,689	2,126,548
37	South Carolina	52	24	2,609,114	2,023,757
38	Massachusetts	17	14	7,276,333	5,617,520
39	Oregon	32	10	2,364,119	567,167
40	South Dakota	23	9	493,161	156,645
41	Rhode Island	25	6	447,874	2,864
42	West Virginia	2	0	5,887	0
National Total		260	120	223,409,898	195,257,315

* According to EPA, the actual number of individuals served is smaller, because many Americans drank water from, and are counted as users by, more than one public water system during the course of a year.