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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Sheppard Air Force Base

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
20141.97 ppb1610ND - 7.30 ppb
20150.219 ppb161ND - 3.50 ppb
20160.706 ppb163ND - 3.90 ppb
20171.96 ppb167ND - 6.80 ppb
20182.44 ppb1612ND - 3.80 ppb
20192.52 ppb16161.30 ppb - 4.30 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
2014-03-10Q14077800042.60 ppb
2014-03-10Q14077800032.20 ppb
2014-03-10Q14077800022.30 ppb
2014-03-10Q14077800012.00 ppb
2014-05-12Q1415581005ND
2014-05-12Q1415581004ND
2014-05-12Q1415581003ND
2014-05-12Q14155810027.30 ppb
2014-08-11Q1435287002ND
2014-08-11Q1435287001ND
2014-08-11Q1435287003ND
2014-08-11Q14352870042.60 ppb
2014-11-24Q14575590045.10 ppb
2014-11-24Q14575590033.10 ppb
2014-11-24Q14575590022.30 ppb
2014-11-24Q14575590012.00 ppb
2015-02-11Q15057300053.50 ppb
2015-02-11Q1505730004ND
2015-02-11Q1505730003ND
2015-02-11Q1505730002ND
2015-06-08Q1521507001ND
2015-06-08Q1521507002ND
2015-06-08Q1521507004ND
2015-06-08Q1521507003ND
2015-07-21Q1528272004ND
2015-07-21Q1528272003ND
2015-07-21Q1528272002ND
2015-07-21Q1528272001ND
2015-11-16Q1545015004ND
2015-11-16Q1545015003ND
2015-11-16Q1545015002ND
2015-11-16Q1545015001ND
2016-02-02Q1604527002ND
2016-02-02Q1604527001ND
2016-02-02Q1604527003ND
2016-02-02Q1604527004ND
2016-04-21Q16158670043.50 ppb
2016-04-21Q16158670033.90 ppb
2016-04-21Q1615867002ND
2016-04-21Q16158670013.90 ppb
2016-08-02Q1631881003ND
2016-08-02Q1631881002ND
2016-08-02Q1631881001ND
2016-08-02Q1631881004ND
2016-11-14Q1649216002ND
2016-11-14Q1649216005ND
2016-11-14Q1649216004ND
2016-11-14Q1649216003ND
2017-01-30Q17040110026.80 ppb
2017-01-30Q1704011004ND
2017-01-30Q1704011001ND
2017-01-30Q1704011003ND
2017-04-24Q17166020045.10 ppb
2017-04-24Q17166020035.50 ppb
2017-04-24Q17166020025.70 ppb
2017-04-24Q17166020015.30 ppb
2017-08-07Q1733096002ND
2017-08-07Q1733096001ND
2017-08-07Q1733096003ND
2017-08-07Q1733096004ND
2017-11-13Q17580690041.40 ppb
2017-11-13Q1758069003ND
2017-11-13Q17580690021.60 ppb
2017-11-13Q1758069001ND
2018-02-12Q1805678004ND
2018-02-12Q1805678003ND
2018-02-12Q1805678002ND
2018-02-12Q1805678001ND
2018-05-07Q18183190033.60 ppb
2018-05-07Q18183190013.70 ppb
2018-05-07Q18183190053.70 ppb
2018-05-07Q18183190043.80 ppb
2018-08-21Q18334750032.00 ppb
2018-08-21Q18334750023.20 ppb
2018-08-21Q18334750043.40 ppb
2018-08-21Q18334750013.70 ppb
2018-11-14Q18465080012.40 ppb
2018-11-14Q18465080022.60 ppb
2018-11-14Q18465080043.30 ppb
2018-11-14Q18465080033.60 ppb
2019-01-29Q19044420042.80 ppb
2019-01-29Q19044420013.00 ppb
2019-01-29Q19044420022.90 ppb
2019-01-29Q19044420033.00 ppb
2019-05-14Q19250780054.30 ppb
2019-05-14Q19250780043.70 ppb
2019-05-14Q19250780033.80 ppb
2019-05-14Q19250780023.60 ppb
2019-08-19Q19566360041.30 ppb
2019-08-19Q19566360031.70 ppb
2019-08-19Q19566360021.70 ppb
2019-08-19Q19566360011.70 ppb
2019-11-20Q19776520011.60 ppb
2019-11-20Q19776520041.60 ppb
2019-11-20Q19776520031.70 ppb
2019-11-20Q19776520021.90 ppb