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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

City of Haysville

Dichloroacetic 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)

50

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.861 ppb1611ND - 4.20 ppb
20150.308 ppb167ND - 0.910 ppb
20160.518 ppb167ND - 1.70 ppb
20170.613 ppb169ND - 1.90 ppb
20180.813 ppb168ND - 3.30 ppb
20190.596 ppb168ND - 1.80 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-11766480.520 ppb
2014-03-11766470.950 ppb
2014-03-11766460.520 ppb
2014-03-11766450.550 ppb
2014-06-101268870.870 ppb
2014-06-101268860.900 ppb
2014-06-10126852ND
2014-06-101268514.20 ppb
2014-09-09191462ND
2014-09-091914601.20 ppb
2014-09-091914681.90 ppb
2014-09-091914701.50 ppb
2014-12-08243939ND
2014-12-08243938ND
2014-12-08243937ND
2014-12-082439360.660 ppb
2015-03-162967540.520 ppb
2015-03-162967530.900 ppb
2015-03-16296752ND
2015-03-16296751ND
2015-06-15349017ND
2015-06-153490180.910 ppb
2015-06-15349020ND
2015-06-153490190.760 ppb
2015-09-14405796ND
2015-09-144057950.660 ppb
2015-09-144057940.640 ppb
2015-09-144057930.540 ppb
2015-12-14461218ND
2015-12-14461217ND
2015-12-14461216ND
2015-12-14461215ND
2016-03-07506793ND
2016-03-07506792ND
2016-03-07506794ND
2016-03-07506795ND
2016-06-06559294ND
2016-06-06559293ND
2016-06-065592921.000 ppb
2016-06-06559291ND
2016-09-126215040.830 ppb
2016-09-126215031.70 ppb
2016-09-126215020.960 ppb
2016-09-12621501ND
2016-12-06668538ND
2016-12-066685411.30 ppb
2016-12-066685401.20 ppb
2016-12-066685391.30 ppb
2017-03-137232830.790 ppb
2017-03-13723282ND
2017-03-13723281ND
2017-03-13723280ND
2017-06-127766891.50 ppb
2017-06-127766880.670 ppb
2017-06-127766870.710 ppb
2017-06-12776686ND
2017-09-18842345ND
2017-09-188423441.10 ppb
2017-09-188423460.730 ppb
2017-09-188423471.90 ppb
2017-12-11891687ND
2017-12-118916861.80 ppb
2017-12-11891685ND
2017-12-118916840.600 ppb
2018-03-129361740.900 ppb
2018-03-12936173ND
2018-03-12936172ND
2018-03-129361711.90 ppb
2018-06-11986704ND
2018-06-119867052.80 ppb
2018-06-11986707ND
2018-06-119867061.40 ppb
2018-09-171044630ND
2018-09-1710446293.30 ppb
2018-09-1710446281.000 ppb
2018-09-171044627ND
2018-12-101089162ND
2018-12-1010891611.20 ppb
2018-12-101089160ND
2018-12-1010891590.500 ppb
2019-03-1811392970.640 ppb
2019-03-181139296ND
2019-03-181139298ND
2019-03-1811392990.910 ppb
2019-06-101184526ND
2019-06-101184525ND
2019-06-1011845241.60 ppb
2019-06-1011845230.980 ppb
2019-09-1712430151.80 ppb
2019-09-171243014ND
2019-09-1712430131.80 ppb
2019-09-171243012ND
2019-12-0212815750.890 ppb
2019-12-021281579ND
2019-12-021281578ND
2019-12-0212815760.920 ppb