Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

City of Azle

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
2013N/A00N/A
20141.04 ppb167ND - 2.60 ppb
20151.63 ppb166ND - 6.90 ppb
20161.89 ppb164ND - 8.40 ppb
20170.144 ppb161ND - 2.30 ppb
20181.88 ppb1612ND - 3.80 ppb
20191.89 ppb1614ND - 2.90 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
2014-02-18Q14049750052.20 ppb
2014-02-18Q14049750042.60 ppb
2014-02-18Q14049750032.60 ppb
2014-02-18Q14049750022.20 ppb
2014-04-15Q14121180042.30 ppb
2014-04-15Q14121180032.40 ppb
2014-04-15Q14121180022.30 ppb
2014-04-15Q1412118001ND
2014-07-14Q1427432002ND
2014-07-14Q1427432001ND
2014-07-14Q1427432003ND
2014-07-14Q1427432004ND
2014-10-21Q1453228004ND
2014-10-21Q1453228003ND
2014-10-21Q1453228002ND
2014-10-21Q1453228001ND
2015-03-02Q15077070085.80 ppb
2015-03-02Q15077070072.70 ppb
2015-03-02Q15077070062.30 ppb
2015-03-02Q15077070052.70 ppb
2015-05-04Q1516122001ND
2015-05-04Q1516122002ND
2015-05-04Q1516122004ND
2015-05-04Q1516122003ND
2015-07-20Q1528153006ND
2015-07-20Q1528153005ND
2015-07-20Q1528153004ND
2015-07-20Q1528153003ND
2015-10-12Q15399000036.90 ppb
2015-10-12Q15399000025.60 ppb
2015-10-12Q1539900001ND
2015-10-19Q1541211001ND
2016-01-20Q1602519005ND
2016-01-20Q1602519004ND
2016-01-20Q1602519006ND
2016-01-20Q1602519007ND
2016-04-19Q1615458001ND
2016-04-19Q1615458004ND
2016-04-19Q1615458003ND
2016-04-19Q1615458002ND
2016-08-02Q16317760068.40 ppb
2016-08-02Q16317760058.20 ppb
2016-08-02Q16317760047.80 ppb
2016-08-02Q16317760035.90 ppb
2016-10-27Q1645993001ND
2016-10-27Q1645993004ND
2016-10-27Q1645993003ND
2016-10-27Q1645993002ND
2017-01-23Q1702942004ND
2017-01-23Q1702942008ND
2017-01-23Q1702942003ND
2017-01-23Q1702942007ND
2017-05-04Q1718453004ND
2017-05-04Q1718453002ND
2017-05-04Q1718453003ND
2017-05-04Q17184530012.30 ppb
2017-07-31Q1731335004ND
2017-07-31Q1731335003ND
2017-07-31Q1731335005ND
2017-07-31Q1731335006ND
2017-10-26Q1755004002ND
2017-10-26Q1755004004ND
2017-10-26Q1755004001ND
2017-10-26Q1755004003ND
2018-01-18Q1802181001ND
2018-01-18Q1802181008ND
2018-01-18Q1802181007ND
2018-01-18Q1802181006ND
2018-04-11Q18149880012.30 ppb
2018-04-11Q18149880033.80 ppb
2018-04-11Q18149880043.70 ppb
2018-04-11Q18149880023.50 ppb
2018-07-30Q18299940062.40 ppb
2018-07-30Q18299940022.50 ppb
2018-07-30Q18299940052.60 ppb
2018-07-30Q18299940012.10 ppb
2018-10-17Q18416200022.30 ppb
2018-10-17Q18416200041.000 ppb
2018-10-17Q18416200012.20 ppb
2018-10-17Q18416200031.70 ppb
2019-02-04Q19050120052.50 ppb
2019-02-04Q19050120042.20 ppb
2019-02-04Q19050120062.50 ppb
2019-02-04Q19050120072.30 ppb
2019-04-30Q19171020041.90 ppb
2019-04-30Q19171020022.70 ppb
2019-04-30Q19171020031.90 ppb
2019-04-30Q1917102001ND
2019-07-30Q19488930062.40 ppb
2019-07-30Q19488930052.90 ppb
2019-07-30Q19488930042.80 ppb
2019-07-30Q19488930031.80 ppb
2019-11-18Q1977121001ND
2019-11-18Q19771210041.50 ppb
2019-11-18Q19771210031.40 ppb
2019-11-18Q19771210021.50 ppb