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EWG's Tap Water Database — 2021 UPDATE

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Bromochloroacetic acid

West Harris County Municipal Utility District 10

Bromochloroacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Bromochloroacetic acid and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

MORE ABOUT THIS CONTAMINANT

 

38

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND50ND
20160.438 ppb83ND - 1.30 ppb
20170.675 ppb82ND - 4.30 ppb
20181.41 ppb83ND - 7.70 ppb
20191.09 ppb85ND - 3.70 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for bromochloroacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-07AC62616ND
2015-06-11AC95768ND
2015-09-24AD08472ND
2015-09-24AD08455ND
2015-12-11AD16769ND
2015-12-11AD16766ND
2016-02-29AD26044ND
2016-02-29AD26023ND
2016-05-13AD36787ND
2016-05-13AD367441.000 ppb
2016-09-20AD503021.20 ppb
2016-09-20AD503031.30 ppb
2016-12-09AD61640ND
2016-12-09AD61637ND
2017-02-08AD69546ND
2017-02-08AD69549ND
2017-05-03AD82441ND
2017-05-03AD824444.30 ppb
2017-07-31AD91311ND
2017-07-31AD91309ND
2017-11-13AE04477ND
2017-11-13AE044791.10 ppb
2018-01-29AE10901ND
2018-01-29AE109037.70 ppb
2018-04-09AE21646ND
2018-04-09AE216652.30 ppb
2018-07-16AE333511.30 ppb
2018-07-16AE33350ND
2018-11-26AE46826ND
2018-11-26AE46827ND
2019-02-20AE550301.000 ppb
2019-02-20AE55029ND
2019-05-08AE654161.20 ppb
2019-05-08AE653833.70 ppb
2019-08-22AE801791.000 ppb
2019-08-22AE80178ND
2019-12-18AE926931.80 ppb
2019-12-18AE92692ND