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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Emporia, City of

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

 

62

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.611 ppb94ND - 1.90 ppb
20150.760 ppb104ND - 2.20 ppb
20161.09 ppb127ND - 2.80 ppb
20172.23 ppb128ND - 5.90 ppb
20181.27 ppb118ND - 2.40 ppb
20190.500 ppb82ND - 2.00 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
2014-02-25E1312048651.20 ppb
2014-02-25E131204861ND
2014-05-30E140301766ND
2014-05-30E140301769ND
2014-08-11E1406015411.90 ppb
2014-08-11E140601546ND
2014-11-12E1409023011.10 ppb
2014-11-12E140902274ND
2014-12-01E1411011351.30 ppb
2015-02-24VA010-DCLSND
2015-02-24VA010-DCLSND
2015-05-28VA010-DCLSND
2015-05-28VA010-DCLSND
2015-08-27VA010-DCLS1.90 ppb
2015-08-27VA010-DCLS2.20 ppb
2015-08-27VA010-DCLSND
2015-11-23VA010-DCLSND
2015-11-23VA010-DCLS1.60 ppb
2015-11-23VA010-DCLS1.90 ppb
2016-02-17E151201968ND
2016-02-17E151201966ND
2016-02-17E151201936ND
2016-05-31E160204868ND
2016-05-31E1602048552.80 ppb
2016-05-31E1602048701.000 ppb
2016-08-31E160603327ND
2016-08-31E1606033212.10 ppb
2016-08-31E1606033222.80 ppb
2016-11-15E1609016081.30 ppb
2016-11-15E1609015821.30 ppb
2016-11-15E1609015811.80 ppb
2017-02-15E1612028273.50 ppb
2017-02-15E1612028245.90 ppb
2017-02-15E161202847ND
2017-05-22E1703033423.20 ppb
2017-05-22E1703033144.00 ppb
2017-05-22E1703033054.10 ppb
2017-08-23E1706063612.10 ppb
2017-08-23E1706063292.20 ppb
2017-08-23E1706063321.70 ppb
2017-11-28E170901227ND
2017-11-28E170901229ND
2017-11-28E170901226ND
2018-02-20E1712032622.10 ppb
2018-02-20E1712032602.20 ppb
2018-02-20E1712032582.40 ppb
2018-05-08E1803056891.30 ppb
2018-05-08E1803056911.20 ppb
2018-05-08E180305693ND
2018-08-15E1806101151.20 ppb
2018-08-15E1806101171.70 ppb
2018-08-15E180610171ND
2018-11-13E180906058ND
2018-11-13E1809060641.90 ppb
2019-02-12E181205974ND
2019-02-12E181205976ND
2019-05-28E1903030022.00 ppb
2019-05-28E1903030172.00 ppb
2019-08-14E190608744ND
2019-08-14E190608743ND
2019-11-19E191000197ND
2019-11-19E191000196ND