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National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

The Most Polluted Communities

351 water utilities reported detecting Bromodichloroacetic acid in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by population

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Suffolk County Water Authority
Bay Shore, NY
1,009,26436 of 690.39 ppb
(0 to 2 ppb)
2Pomona - City, Water Dept.
Pomona, CA
156,5001 of 12.9 ppb
(2.9 ppb)
3Springfield
Springfield, MO
151,00022 of 232.83 ppb
(0 to 7.96 ppb)
4Columbia
Columbia, MO
107,34223 of 292.25 ppb
(0 to 8.14 ppb)
5City of Redding
Redding, CA
78,5181 of 10.43 ppb
(0.43 ppb)
6St Charles Co Pwsd #2
O Fallon, MO
62,0003 of 170.15 ppb
(0 to 1.66 ppb)
7St Charles
St Charles, MO
56,3393 of 210.23 ppb
(0 to 4.26 ppb)
8MO American Joplin
Joplin, MO
50,70016 of 201.97 ppb
(0 to 6.49 ppb)
9St Peters
St Peters, MO
41,0001 of 180.05 ppb
(0 to 0.9 ppb)
10Jefferson Co Cons Pwsd C 1
Barnhart, MO
40,0001 of 13< 0.01 ppb
(0 to 0.1 ppb)
11Cape Girardeau
Cape Girardeau, MO
36,70121 of 231.98 ppb
(0 to 4.25 ppb)
12Liberty
Liberty, MO
30,00011 of 211.59 ppb
(0 to 9.57 ppb)
13Gladstone
Gladstone, MO
30,00017 of 232.5 ppb
(0 to 8.8 ppb)
14MO American Jefferson City
Jefferson City, MO
29,5003 of 230.07 ppb
(0 to 0.86 ppb)
15Kirkwood
Kirkwood, MO
28,0001 of 18< 0.01 ppb
(< .01 to 0.002078 ppb)
16Fort Leonard Wood
Ft Leonard Wood, MO
24,00025 of 272.22 ppb
(0 to 5.76 ppb)
17Wentzville
Wentzville, MO
23,0001 of 90.03 ppb
(0 to 0.26 ppb)
18Sedalia
Sedalia, MO
20,3396 of 270.28 ppb
(0 to 2.23 ppb)
19Jefferson Co Pwsd #1
Arnold, MO
20,0001 of 21< 0.01 ppb
(0 to 0.13 ppb)
20Jefferson Co Pwsd #2
High Ridge, MO
20,0001 of 260.03 ppb
(0 to 0.8 ppb)