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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Walnut Ridge Estates Water System

Monobromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

24

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.53 ppb42ND - 3.30 ppb
20152.23 ppb43ND - 4.10 ppb
20160.575 ppb42ND - 1.30 ppb
20175.75 ppb442.10 ppb - 10.7 ppb
201811.1 ppb43ND - 40.0 ppb
20191.15 ppb42ND - 2.90 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 25 ppb

The EWG Health Guideline of 25 ppb for monobromoacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against muscular degeneration.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-27Q14066270052.80 ppb
2014-06-23Q1423349001ND
2014-09-24Q1448016001ND
2014-12-15Q14600210013.30 ppb
2015-03-19Q15103370013.10 ppb
2015-06-30Q15247440011.70 ppb
2015-09-24Q15380060014.10 ppb
2015-11-30Q1546970003ND
2016-03-23Q16119130011.000 ppb
2016-06-07Q1622574001ND
2016-09-01Q1635120001ND
2016-11-09Q16487260041.30 ppb
2017-02-07Q17052510012.10 ppb
2017-04-26Q17171220073.10 ppb
2017-07-20Q173012300110.7 ppb
2017-10-26Q17552810017.10 ppb
2018-02-12Q180561600140.0 ppb
2018-06-05Q1822282001ND
2018-08-30Q18349880032.90 ppb
2018-12-03Q18490160011.50 ppb
2019-02-11Q19060160011.70 ppb
2019-05-01Q19174450092.90 ppb
2019-08-21Q1957737001ND
2019-11-05Q1975071001ND