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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

City of Mebane

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

96

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201414.7 ppb1615ND - 30.0 ppb
201517.1 ppb16165.00 ppb - 25.0 ppb
201610.2 ppb16165.00 ppb - 14.0 ppb
201712.7 ppb16167.80 ppb - 21.0 ppb
201815.4 ppb17179.90 ppb - 26.0 ppb
201913.0 ppb16162.50 ppb - 19.0 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
2014-02-1816039-1411.0 ppb
2014-02-1816040-1414.0 ppb
2014-02-1816041-1417.0 ppb
2014-02-1816038-1418.0 ppb
2014-05-14173101A1421.0 ppb
2014-05-14173104-1410.00 ppb
2014-05-14173102-1426.0 ppb
2014-05-14173103-1424.0 ppb
2014-08-13173628-144.00 ppb
2014-08-13173629-1430.0 ppb
2014-08-13173630-1422.0 ppb
2014-08-13173631-14ND
2014-11-12174362-1411.0 ppb
2014-11-12174363-1412.0 ppb
2014-11-12174361-1412.0 ppb
2014-11-12174360-143.00 ppb
2015-02-1114.0 ppb
2015-02-1110.00 ppb
2015-02-1114.0 ppb
2015-02-1115.0 ppb
2015-05-1323.0 ppb
2015-05-1314.0 ppb
2015-05-1314.0 ppb
2015-05-1319.0 ppb
2015-08-135.00 ppb
2015-08-1319.0 ppb
2015-08-1325.0 ppb
2015-08-1322.0 ppb
2015-11-1022.0 ppb
2015-11-1024.0 ppb
2015-11-109.00 ppb
2015-11-1025.0 ppb
2016-02-17234-1614.0 ppb
2016-02-17236-165.00 ppb
2016-02-17237-1610.00 ppb
2016-02-17235-166.00 ppb
2016-05-11344753412.0 ppb
2016-05-1134475338.20 ppb
2016-05-1134475329.90 ppb
2016-05-11344753114.0 ppb
2016-08-10351892611.0 ppb
2016-08-1035189278.50 ppb
2016-08-1035189287.60 ppb
2016-08-1035189298.30 ppb
2016-11-08358236214.0 ppb
2016-11-08358236313.0 ppb
2016-11-08358236411.0 ppb
2016-11-08358236511.0 ppb
2017-02-0836348659.50 ppb
2017-02-0836348688.50 ppb
2017-02-0836348668.60 ppb
2017-02-0836348678.10 ppb
2017-05-10369225915.0 ppb
2017-05-10369226015.0 ppb
2017-05-10369226111.0 ppb
2017-05-10369226215.0 ppb
2017-08-09375324515.0 ppb
2017-08-09375324421.0 ppb
2017-08-09375324319.0 ppb
2017-08-09375324221.0 ppb
2017-11-0838173489.60 ppb
2017-11-08381734910.00 ppb
2017-11-0838173509.20 ppb
2017-11-0838173517.80 ppb
2018-02-143872946 12.0 ppb
2018-02-143872945 9.90 ppb
2018-02-143872944 11.0 ppb
2018-02-143872943 11.0 ppb
2018-05-093933043 15.0 ppb
2018-05-093933040 17.0 ppb
2018-05-093933041 18.0 ppb
2018-05-093933042 17.0 ppb
2018-08-084016647 15.0 ppb
2018-08-084016646 17.0 ppb
2018-08-084016645 18.0 ppb
2018-08-084016644 20.0 ppb
2018-08-284039693 26.0 ppb
2018-11-144124965 12.0 ppb
2018-11-144124966 14.0 ppb
2018-11-144124967 12.0 ppb
2018-11-144124968 17.0 ppb
2019-02-134197653 12.0 ppb
2019-02-134197654 11.0 ppb
2019-02-134197655 9.70 ppb
2019-02-134197656 11.0 ppb
2019-05-084288009 17.0 ppb
2019-05-084288012 15.0 ppb
2019-05-084288011 15.0 ppb
2019-05-084288010 15.0 ppb
2019-08-144387675 16.0 ppb
2019-08-144387677 19.0 ppb
2019-08-144387676 14.0 ppb
2019-08-144387674 17.0 ppb
2019-11-064478937 12.0 ppb
2019-11-064478935 11.0 ppb
2019-11-064478933 10.00 ppb
2019-11-064478931 2.50 ppb