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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Bristol Virginia Utility Board

Monochloroacetic 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.

MORE ABOUT THIS CONTAMINANT

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.606 ppb165ND - 3.70 ppb
20150.725 ppb166ND - 3.00 ppb
20161.24 ppb169ND - 3.80 ppb
20170.506 ppb165ND - 2.30 ppb
20180.450 ppb165ND - 1.60 ppb
20190.1000 ppb161ND - 1.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic 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 system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-11E131205377ND
2014-02-11E131205375ND
2014-02-11E131205384ND
2014-02-11E131205374ND
2014-05-12E1404007181.30 ppb
2014-05-12E140400721ND
2014-05-12E140400719ND
2014-05-12E140400720ND
2014-08-11E1408001782.10 ppb
2014-08-11E1408001741.40 ppb
2014-08-11E1408001763.70 ppb
2014-08-11E140800175ND
2014-11-12E140904227ND
2014-11-12E140904220ND
2014-11-12E140904228ND
2014-11-12E1409042241.20 ppb
2015-02-09VA010-DCLSND
2015-02-09VA010-DCLSND
2015-02-09VA010-DCLSND
2015-02-09VA010-DCLSND
2015-05-11VA010-DCLSND
2015-05-11VA010-DCLSND
2015-05-11VA010-DCLSND
2015-05-11VA010-DCLSND
2015-08-11VA010-DCLS3.00 ppb
2015-08-11VA010-DCLS2.20 ppb
2015-08-11VA010-DCLSND
2015-08-11VA010-DCLSND
2015-11-09VA010-DCLS1.90 ppb
2015-11-09VA010-DCLS1.20 ppb
2015-11-09VA010-DCLS1.60 ppb
2015-11-09VA010-DCLS1.70 ppb
2016-02-09E151204961ND
2016-02-09E151204963ND
2016-02-09E151204967ND
2016-02-09E151204956ND
2016-05-11E1605009651.60 ppb
2016-05-11E1605009691.50 ppb
2016-05-11E1605009711.30 ppb
2016-05-12E160500967ND
2016-08-08E1606040843.80 ppb
2016-08-08E1606040862.90 ppb
2016-08-08E1606040792.80 ppb
2016-08-08E1606040872.80 ppb
2016-11-08E1610002541.80 ppb
2016-11-08E161000252ND
2016-11-08E161000260ND
2016-11-08E1610002591.40 ppb
2017-02-14E161207015ND
2017-02-14E161207023ND
2017-02-14E161207017ND
2017-02-14E161207024ND
2017-05-09E1704015781.20 ppb
2017-05-09E170401582ND
2017-05-09E170401576ND
2017-05-09E1704015831.10 ppb
2017-08-14E1706087511.80 ppb
2017-08-14E170608745ND
2017-08-14E170608757ND
2017-08-14E1706087462.30 ppb
2017-11-13E1709066121.70 ppb
2017-11-13E170906608ND
2017-11-13E170906604ND
2017-11-13E170906606ND
2018-02-13E171206936ND
2018-02-13E171206934ND
2018-02-13E171206932ND
2018-02-13E171206930ND
2018-05-15E1803073941.60 ppb
2018-05-15E180307389ND
2018-05-15E1803073911.50 ppb
2018-05-15E1803073931.50 ppb
2018-08-06E1806089241.20 ppb
2018-08-06E1806089141.40 ppb
2018-08-06E180608913ND
2018-08-08E180608912ND
2018-11-13E180907400ND
2018-11-13E180907401ND
2018-11-13E180907405ND
2018-11-13E180907409ND
2019-02-12E181207248ND
2019-02-12E181207256ND
2019-02-12E181207258ND
2019-02-12E181207261ND
2019-05-13E190306395ND
2019-05-13E190306399ND
2019-05-13E190306398ND
2019-05-13E190306397ND
2019-08-12E1908010281.60 ppb
2019-08-12E190801030ND
2019-08-12E190801029ND
2019-08-12E190801027ND
2019-11-12E191002602ND
2019-11-12E191002601ND
2019-11-12E191002600ND
2019-11-12E191002598ND