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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

East Cedar Creek FWSD Brookshire

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
20141.73 ppb169ND - 4.50 ppb
20152.83 ppb169ND - 7.00 ppb
20160.631 ppb164ND - 3.00 ppb
2017ND160ND
20183.19 ppb1614ND - 6.00 ppb
20192.48 ppb16161.20 ppb - 3.30 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
2014-03-05Q14071380072.40 ppb
2014-03-05Q14071380062.20 ppb
2014-03-05Q14071380052.60 ppb
2014-03-05Q14071380042.50 ppb
2014-06-12Q1420909004ND
2014-06-12Q14209090032.30 ppb
2014-06-12Q1420909002ND
2014-06-12Q1420909001ND
2014-08-15Q1437310002ND
2014-08-15Q1437310001ND
2014-08-15Q1437310003ND
2014-08-15Q1437310004ND
2014-10-28Q14542730044.50 ppb
2014-10-28Q14542730033.40 ppb
2014-10-28Q14542730023.80 ppb
2014-10-28Q14542730014.00 ppb
2015-03-18Q1510335004ND
2015-03-18Q15103350033.70 ppb
2015-03-18Q15103350023.70 ppb
2015-03-18Q1510335001ND
2015-06-19Q1523207002ND
2015-06-19Q15232070015.50 ppb
2015-06-19Q15232070045.50 ppb
2015-06-19Q15232070054.70 ppb
2015-09-14Q15355620047.00 ppb
2015-09-14Q15355620034.90 ppb
2015-09-14Q15355620025.00 ppb
2015-09-14Q15355620015.30 ppb
2015-12-10Q1549366004ND
2015-12-10Q1549366003ND
2015-12-10Q1549366002ND
2015-12-10Q1549366001ND
2016-03-21Q16115230082.40 ppb
2016-03-21Q16115230073.00 ppb
2016-03-21Q16115230092.50 ppb
2016-03-21Q16115230102.20 ppb
2016-06-21Q1625129004ND
2016-06-21Q1625129003ND
2016-06-21Q1625129002ND
2016-06-21Q1625129001ND
2016-09-07Q1636462006ND
2016-09-07Q1636462005ND
2016-09-07Q1636462004ND
2016-09-07Q1636462003ND
2016-11-10Q1649389001ND
2016-11-10Q1649389004ND
2016-11-10Q1649389003ND
2016-11-10Q1649389002ND
2017-03-14Q1710605001ND
2017-03-14Q1710605004ND
2017-03-14Q1710605003ND
2017-03-14Q1710605002ND
2017-05-17Q1720103004ND
2017-05-17Q1720103002ND
2017-05-17Q1720103003ND
2017-05-17Q1720103001ND
2017-08-17Q1736752004ND
2017-08-17Q1736752003ND
2017-08-17Q1736752005ND
2017-08-17Q1736752006ND
2017-12-04Q1762649004ND
2017-12-04Q1762649003ND
2017-12-04Q1762649002ND
2017-12-04Q1762649001ND
2018-02-28Q18082080021.90 ppb
2018-02-28Q18082080081.70 ppb
2018-02-28Q1808208004ND
2018-02-28Q1808208007ND
2018-05-25Q18212760013.60 ppb
2018-05-25Q18212760026.00 ppb
2018-05-25Q18212760045.10 ppb
2018-05-25Q18212760034.90 ppb
2018-09-21Q18379400064.00 ppb
2018-09-21Q18379400053.60 ppb
2018-09-21Q18379400024.20 ppb
2018-09-21Q18379400014.30 ppb
2018-12-10Q18502800042.90 ppb
2018-12-10Q18502800032.60 ppb
2018-12-10Q18502800023.60 ppb
2018-12-10Q18502800012.70 ppb
2019-01-09Q19011200112.90 ppb
2019-01-09Q19011200052.40 ppb
2019-01-09Q19011200062.70 ppb
2019-01-09Q19011200122.50 ppb
2019-04-08Q19141850043.30 ppb
2019-04-08Q19141850032.70 ppb
2019-04-08Q19141850022.60 ppb
2019-04-08Q19141850012.90 ppb
2019-07-22Q19464470062.50 ppb
2019-07-22Q19464470053.10 ppb
2019-07-22Q19464470042.60 ppb
2019-07-22Q19464470032.80 ppb
2019-10-22Q19734420011.80 ppb
2019-10-22Q19734420041.90 ppb
2019-10-22Q19734420031.70 ppb
2019-10-22Q19734420021.20 ppb