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EWG Statement, 03/10/2008

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National Contaminant Report

Bromochloroacetic acid

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Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.

Bromochloroacetic acid is a disinfection by-product. No information on potential health impacts for Bromochloroacetic acid was identified in standard government and academic sources. [read more]

Sources of Bromochloroacetic acid:
Water TreatmentWater Treatment and Distribution Byproducts (pipes and fixtures, treatment chemicals and byproducts)

An Environmental Working Group analysis of Bromochloroacetic acid tests reported by 898 public water suppliers in 16 states shows that between 1998 and 2003, 12.5 million people in 558 communities drank water contaminated with Bromochloroacetic acid. No health-based limit has been established by the federal government.Bromochloroacetic acid remains unregulated in tap water, without a maximum legal limit.

Exposure Summary

12,521,375

People drinking water contaminated with Bromochloroacetic acid

558

Communities served water contaminated with Bromochloroacetic acid


Table. Bromochloroacetic acid Exposure by State

12.5 million Americans in 14 states were served tap water contaminated with Bromochloroacetic acid between 1998 and 2003.

StateWater suppliers with Bromochloroacetic acid contamination
SystemsPopulation
Arkansas2182,448,314
Minnesota522,118,025
Michigan661,722,957
Oklahoma351,613,030
Missouri1111,244,936
California221,029,772
Nebraska17895,960
Florida10467,629
Nevada5464,388
Delaware1200,000
Montana16172,778
New Mexico3130,001
Illinois113,535
Alaska150
Total55812,521,375

Table. The most polluted communities

12.5 million Americans in 558 communities were served tap water contaminated with Bromochloroacetic acid between 1998 and 2003

Ranked by highest average Bromochloroacetic acid level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Village of Palm Springs Water
Palm Springs, FL
32,4671 of 141.57 ppb
(41.57 to 41.57 ppb)
2Boonville
Boonville, MO
8,2029 of 1121.22 ppb
(0 to 123 ppb)
3Lexington - Us Water Company
Kansas City, MO
5,20010 of 1016.58 ppb
(9.88 to 28.6 ppb)
4Brinkley Waterworks
Brinkley, AR
8,3173 of 316.33 ppb
(14.8 to 18.9 ppb)
5Lakeside Water Association
Taylor, AR
1,3691 of 114.9 ppb
(14.9 to 14.9 ppb)
6Wood Dale
Wood Dale, IL
13,5351 of 114.8 ppb
(14.8 to 14.8 ppb)
7Marion County Reg Water District
Bull Shoals, AR
8,4924 of 413.2 ppb
(5.7 to 19 ppb)
8Glasgow
Glasgow, MO
1,29510 of 1111.72 ppb
(0 to 22.8 ppb)
9Ramona Municipal Water Department
Ramona, CA
34,8225 of 511.66 ppb
(7.3 to 14 ppb)
10Little River Co Rda
Foreman, AR
6,0537 of 711.43 ppb
(6.6 to 17.1 ppb)

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Testing Summary for Bromochloroacetic acid

Water suppliers report an average of 0.7 Bromochloroacetic acid tests per year. 38,853 water suppliers failed to report any Bromochloroacetic acid tests at all.

Are tests routinely required for Bromochloroacetic acid by federal law?No
Water suppliers reporting tests for Bromochloroacetic acid (1998-2003):898 of 39,751
Average testing rate for water supplier reporting tests (1998-2003):0.7 per year


Bromochloroacetic acid Violations

Because Bromochloroacetic acid is unregulated in tap water, no violations are recorded in EPA's violations database, the Safe Drinking Water Information System. Under the federal tap water law, water suppliers are not required to routinely test for Bromochloroacetic acid, and any level is legal in tap water.