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EWG's Tap Water Database — 2021 UPDATE

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Bromochloroacetic acid

North Alamo Water Supply Company

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

166

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20148.77 ppb3227ND - 21.3 ppb
20158.37 ppb3227ND - 19.3 ppb
20165.96 ppb3228ND - 13.1 ppb
20176.24 ppb3228ND - 21.1 ppb
20186.96 ppb3228ND - 19.0 ppb
20196.16 ppb3228ND - 10.9 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
2014-02-25AC44500ND
2014-02-25AC4450112.3 ppb
2014-02-25AC4448212.3 ppb
2014-02-25AC4448511.8 ppb
2014-02-25AC4448111.2 ppb
2014-02-25AC444833.40 ppb
2014-02-25AC4448412.9 ppb
2014-02-25AC444789.30 ppb
2014-05-06AC53215ND
2014-05-06AC5321420.1 ppb
2014-05-06AC5321319.1 ppb
2014-05-06AC532126.30 ppb
2014-05-06AC532164.00 ppb
2014-05-06AC532176.90 ppb
2014-06-17AC5717110.00 ppb
2014-06-17AC571729.40 ppb
2014-09-22AC67704ND
2014-09-22AC6770119.1 ppb
2014-09-22AC6770213.1 ppb
2014-09-22AC677058.60 ppb
2014-09-22AC677316.70 ppb
2014-09-22AC677037.30 ppb
2014-09-22AC677008.60 ppb
2014-09-22AC677297.90 ppb
2014-11-21AC72709ND
2014-11-21AC7278416.0 ppb
2014-11-21AC7270221.3 ppb
2014-11-21AC727856.80 ppb
2014-11-21AC727014.70 ppb
2014-11-21AC72707ND
2014-11-21AC727085.80 ppb
2014-11-21AC727035.60 ppb
2015-03-11AC83711ND
2015-03-11AC8370913.3 ppb
2015-03-11AC8371213.3 ppb
2015-03-11AC8373510.1 ppb
2015-03-11AC837104.90 ppb
2015-03-11AC837376.20 ppb
2015-03-11AC8371311.2 ppb
2015-03-11AC837075.10 ppb
2015-05-06AC90712ND
2015-05-06AC907174.60 ppb
2015-05-06AC907159.90 ppb
2015-05-06AC907199.60 ppb
2015-05-06AC907189.50 ppb
2015-05-06AC907105.80 ppb
2015-05-06AC9072011.5 ppb
2015-05-06AC9071410.3 ppb
2015-07-15AC99617ND
2015-07-15AC9961614.3 ppb
2015-07-15AC9961114.7 ppb
2015-07-15AC9961213.7 ppb
2015-07-15AC9961019.3 ppb
2015-07-15AC9961810.1 ppb
2015-07-16AC9990512.8 ppb
2015-07-16AC999007.30 ppb
2015-10-22AD11481ND
2015-10-22AD11478ND
2015-10-22AD1148310.7 ppb
2015-10-22AD114808.90 ppb
2015-10-22AD114737.90 ppb
2015-10-22AD114774.40 ppb
2015-10-22AD1147410.1 ppb
2015-10-22AD114858.40 ppb
2016-01-27AD20354ND
2016-01-27AD203592.00 ppb
2016-01-27AD2033811.2 ppb
2016-01-27AD203604.90 ppb
2016-01-27AD203575.40 ppb
2016-01-27AD203483.20 ppb
2016-01-27AD203613.10 ppb
2016-01-27AD203586.80 ppb
2016-04-27AD34392ND
2016-04-27AD34390ND
2016-04-27AD343898.40 ppb
2016-04-27AD3437810.00 ppb
2016-04-27AD343827.20 ppb
2016-04-27AD343913.20 ppb
2016-04-27AD343878.40 ppb
2016-04-27AD343887.10 ppb
2016-08-03AD46840ND
2016-08-03AD468233.70 ppb
2016-08-03AD4683613.1 ppb
2016-08-03AD468418.70 ppb
2016-08-03AD468206.50 ppb
2016-08-03AD468225.60 ppb
2016-08-03AD468429.90 ppb
2016-08-03AD468217.50 ppb
2016-10-25AD545422.20 ppb
2016-10-25AD545383.60 ppb
2016-10-25AD545369.10 ppb
2016-10-25AD545359.10 ppb
2016-10-25AD545398.30 ppb
2016-10-25AD545375.20 ppb
2016-10-25AD545348.70 ppb
2016-10-25AD545418.60 ppb
2017-02-07AD691474.30 ppb
2017-02-07AD69145ND
2017-02-07AD6915011.2 ppb
2017-02-07AD691487.90 ppb
2017-02-07AD691515.80 ppb
2017-02-07AD691493.50 ppb
2017-02-07AD691576.00 ppb
2017-02-07AD691465.10 ppb
2017-04-20AD803282.30 ppb
2017-04-20AD803258.00 ppb
2017-04-20AD8032721.1 ppb
2017-04-20AD803297.70 ppb
2017-04-20AD803476.90 ppb
2017-04-20AD803332.90 ppb
2017-04-20AD803307.90 ppb
2017-04-20AD803267.20 ppb
2017-07-11AD88848ND
2017-07-11AD88861ND
2017-07-11AD8886718.4 ppb
2017-07-11AD888687.90 ppb
2017-07-11AD888597.10 ppb
2017-07-11AD888604.40 ppb
2017-07-11AD888648.80 ppb
2017-07-11AD888547.00 ppb
2017-10-03AD99011ND
2017-10-03AD990164.10 ppb
2017-10-03AD990142.40 ppb
2017-10-03AD990156.70 ppb
2017-10-03AD990176.40 ppb
2017-10-03AD990125.30 ppb
2017-10-03AD990186.50 ppb
2017-10-03AD990136.90 ppb
2018-01-23AE09830ND
2018-01-23AE098279.50 ppb
2018-01-23AE098152.90 ppb
2018-01-23AE098117.20 ppb
2018-01-23AE098126.30 ppb
2018-01-23AE098081.90 ppb
2018-01-23AE0981410.2 ppb
2018-01-23AE098237.70 ppb
2018-04-10AE21835ND
2018-04-10AE218338.70 ppb
2018-04-10AE218399.20 ppb
2018-04-10AE218369.00 ppb
2018-04-10AE218326.20 ppb
2018-04-10AE218342.40 ppb
2018-04-10AE218387.40 ppb
2018-04-10AE218376.20 ppb
2018-07-11AE32925ND
2018-07-11AE329238.20 ppb
2018-07-11AE3292419.0 ppb
2018-07-11AE329319.50 ppb
2018-07-11AE329339.70 ppb
2018-07-11AE329323.10 ppb
2018-07-11AE329348.40 ppb
2018-07-11AE3293011.6 ppb
2018-11-06AE453799.30 ppb
2018-11-06AE4537212.7 ppb
2018-11-06AE453769.60 ppb
2018-11-06AE453756.30 ppb
2018-11-06AE453786.80 ppb
2018-11-06AE453747.20 ppb
2018-11-06AE453776.50 ppb
2018-11-06AE45373ND
2019-02-12AE540708.50 ppb
2019-02-12AE5404010.9 ppb
2019-02-12AE540417.20 ppb
2019-02-12AE540446.70 ppb
2019-02-12AE540434.10 ppb
2019-02-12AE540345.90 ppb
2019-02-12AE540352.30 ppb
2019-02-12AE54045ND
2019-04-30AE640848.70 ppb
2019-04-30AE6409310.00 ppb
2019-04-30AE640997.20 ppb
2019-04-30AE640947.50 ppb
2019-04-30AE640823.10 ppb
2019-04-30AE640927.30 ppb
2019-04-30AE640956.70 ppb
2019-04-30AE64083ND
2019-09-03AE817058.60 ppb
2019-09-03AE817069.60 ppb
2019-09-03AE817038.30 ppb
2019-09-03AE817045.50 ppb
2019-09-03AE817013.80 ppb
2019-09-03AE817077.50 ppb
2019-09-03AE817027.10 ppb
2019-09-03AE81700ND
2019-11-05AE884599.90 ppb
2019-11-05AE8846010.2 ppb
2019-11-05AE8845710.4 ppb
2019-11-05AE884585.70 ppb
2019-11-05AE884531.70 ppb
2019-11-05AE884566.60 ppb
2019-11-05AE884556.00 ppb
2019-11-05AE88454ND