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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Cedar Hill

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
20143.98 ppb1615ND - 8.70 ppb
20152.71 ppb1610ND - 5.50 ppb
20162.34 ppb167ND - 6.70 ppb
2017ND160ND
20181.73 ppb1611ND - 4.00 ppb
20190.538 ppb165ND - 2.10 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
2014-03-17Q14084740042.60 ppb
2014-03-17Q14084740032.80 ppb
2014-03-17Q14084740023.60 ppb
2014-03-17Q14084740014.00 ppb
2014-06-03Q14188460042.70 ppb
2014-06-03Q1418846003ND
2014-06-03Q14188460022.50 ppb
2014-06-03Q14188460014.10 ppb
2014-09-18Q14456800043.50 ppb
2014-09-18Q14456800038.70 ppb
2014-09-18Q14456800057.70 ppb
2014-09-18Q14456800066.80 ppb
2014-12-04Q14586590044.30 ppb
2014-12-04Q14586590033.40 ppb
2014-12-04Q14586590022.80 ppb
2014-12-04Q14586590014.10 ppb
2015-03-10Q15086600033.70 ppb
2015-03-10Q1508660002ND
2015-03-10Q15086600043.70 ppb
2015-03-10Q15086600014.60 ppb
2015-06-04Q1520627001ND
2015-06-04Q15206270025.50 ppb
2015-06-04Q15206270044.20 ppb
2015-06-04Q15206270034.90 ppb
2015-08-18Q1532667007ND
2015-08-18Q15326670063.30 ppb
2015-08-18Q15326670053.50 ppb
2015-08-18Q1532667004ND
2015-10-21Q15413840045.00 ppb
2015-10-21Q15413840034.90 ppb
2015-10-21Q1541384002ND
2015-10-21Q1541384001ND
2016-01-21Q1602811002ND
2016-01-21Q1602811001ND
2016-01-21Q1602811003ND
2016-01-21Q1602811004ND
2016-04-27Q16166380044.20 ppb
2016-04-27Q16166380035.10 ppb
2016-04-27Q16166380025.80 ppb
2016-04-27Q16166380016.70 ppb
2016-08-02Q1632098004ND
2016-08-02Q1632098003ND
2016-08-02Q1632098002ND
2016-08-02Q1632098001ND
2016-10-07Q1643132008ND
2016-10-07Q16431320115.50 ppb
2016-10-07Q16431320104.90 ppb
2016-10-07Q16431320095.30 ppb
2017-01-11Q1701553004ND
2017-01-11Q1701553006ND
2017-01-11Q1701553003ND
2017-01-11Q1701553005ND
2017-04-12Q1715261004ND
2017-04-12Q1715261003ND
2017-04-12Q1715261002ND
2017-04-12Q1715261001ND
2017-07-26Q1731046001ND
2017-07-26Q1731046002ND
2017-07-26Q1731046003ND
2017-07-26Q1731046004ND
2017-11-08Q1757339002ND
2017-11-08Q1757339004ND
2017-11-08Q1757339001ND
2017-11-08Q1757339003ND
2018-01-31Q1803991009ND
2018-01-31Q1803991008ND
2018-01-31Q1803991003ND
2018-01-31Q1803991007ND
2018-05-08Q18184640014.00 ppb
2018-05-08Q18184640043.80 ppb
2018-05-08Q18184640054.00 ppb
2018-05-08Q18184640023.90 ppb
2018-08-13Q18322350022.30 ppb
2018-08-13Q18322350042.10 ppb
2018-08-13Q18322350012.40 ppb
2018-08-13Q1832235003ND
2018-10-17Q18414680021.50 ppb
2018-10-17Q18414680041.30 ppb
2018-10-17Q18414680011.30 ppb
2018-10-17Q18414680031.000 ppb
2019-03-19Q19113930031.50 ppb
2019-03-19Q1911393002ND
2019-03-19Q1911393001ND
2019-03-19Q1911393004ND
2019-05-23Q19284460112.10 ppb
2019-05-23Q19284460101.80 ppb
2019-05-23Q19284460091.80 ppb
2019-05-23Q19284460081.40 ppb
2019-08-20Q1956751004ND
2019-08-20Q1956751003ND
2019-08-20Q1956751002ND
2019-08-20Q1956751001ND
2019-10-31Q1974654001ND
2019-10-31Q1974654004ND
2019-10-31Q1974654003ND
2019-10-31Q1974654002ND