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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Nellis 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

 

82

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.650 ppb82ND - 2.90 ppb
20150.288 ppb81ND - 2.30 ppb
20161.26 ppb147ND - 3.00 ppb
20170.440 ppb204ND - 2.50 ppb
20180.781 ppb165ND - 2.60 ppb
2019ND160ND

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
2014-03-1114030127-002ND
2014-03-1114030127-003ND
2014-06-0314060019-0022.90 ppb
2014-06-0314060019-003ND
2014-09-0914090130-002ND
2014-09-0914090130-0032.30 ppb
2014-12-0914120177-003ND
2014-12-0914120177-002ND
2015-03-1015030162-003ND
2015-03-1015030162-002ND
2015-06-0915060137-0032.30 ppb
2015-06-0915060137-002ND
2015-09-0815090070-003ND
2015-09-0815090070-002ND
2015-12-0815120109-003ND
2015-12-0815120109-002ND
2016-03-0816030112-002ND
2016-03-0816030112-003ND
2016-06-22S1602789002ND
2016-06-22S1602789003ND
2016-06-22S16027890042.90 ppb
2016-06-22S1602789005ND
2016-09-13S1602821005ND
2016-09-13S16028210042.80 ppb
2016-09-13S16028210032.30 ppb
2016-09-13S16028210023.00 ppb
2016-12-13S16048710032.20 ppb
2016-12-13S16048710042.40 ppb
2016-12-13S16048710022.00 ppb
2016-12-13S1604871005ND
2017-03-14S1701503005ND
2017-03-14S1701503004ND
2017-03-14S1701503003ND
2017-03-14S17015030022.20 ppb
2017-06-19S1701779005ND
2017-06-19S1701779004ND
2017-06-19S17017790032.00 ppb
2017-06-19S1701779002ND
2017-09-05S1704297005ND
2017-09-05S17042970042.10 ppb
2017-09-05S1704297003ND
2017-09-05S17042970022.50 ppb
2017-09-20S1706375002ND
2017-09-20S1706375003ND
2017-09-20S1706375004ND
2017-09-20S1706375005ND
2017-12-12S1706757005ND
2017-12-12S1706757003ND
2017-12-12S1706757002ND
2017-12-12S1706757004ND
2018-03-14S1708772005ND
2018-03-14S17087720042.60 ppb
2018-03-14S17087720032.30 ppb
2018-03-14S1708772002ND
2018-06-12S1801947005ND
2018-06-12S1801947002ND
2018-06-12S18019470032.60 ppb
2018-06-12S1801947004ND
2018-09-11S1803966005ND
2018-09-11S18039660042.60 ppb
2018-09-11S1803966003ND
2018-09-11S18039660022.40 ppb
2018-12-12S1806333002ND
2018-12-12S1806333003ND
2018-12-12S1806333004ND
2018-12-12S1806333005ND
2019-03-12S1902875002ND
2019-03-12S1902875003ND
2019-03-12S1902875004ND
2019-03-12S1902875005ND
2019-06-12S1903292002ND
2019-06-12S1903292005ND
2019-06-12S1903292004ND
2019-06-12S1903292003ND
2019-09-12S1927418003ND
2019-09-12S1927418005ND
2019-09-12S1927418004ND
2019-09-12S1927418002ND
2019-12-03S1962184005ND
2019-12-03S1962184004ND
2019-12-03S1962184003ND
2019-12-03S1962184002ND