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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

East Hanover Twp Water Department

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)

67

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.49 ppb1611ND - 3.40 ppb
20153.39 ppb1610ND - 12.6 ppb
20166.63 ppb1613ND - 21.1 ppb
20175.24 ppb1610ND - 18.0 ppb
20181.68 ppb169ND - 5.25 ppb
20196.24 ppb1614ND - 14.4 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
2014-03-243403240761.50 ppb
2014-03-243403240782.00 ppb
2014-03-243403240801.60 ppb
2014-03-24340324082ND
2014-06-163406160892.60 ppb
2014-06-163406160911.90 ppb
2014-06-163406160872.70 ppb
2014-06-16340616093ND
2014-09-223409220433.40 ppb
2014-09-223409220412.00 ppb
2014-09-223409220451.90 ppb
2014-09-22340922039ND
2014-12-153412150461.90 ppb
2014-12-153412150442.40 ppb
2014-12-15341215042ND
2014-12-15341215048ND
2015-03-16350316040ND
2015-03-163503160361.60 ppb
2015-03-163503160381.20 ppb
2015-03-163503160341.60 ppb
2015-06-15350615057ND
2015-06-153506150514.40 ppb
2015-06-153506150538.70 ppb
2015-06-1535061505512.6 ppb
2015-09-21350921046ND
2015-09-213509210407.42 ppb
2015-09-213509210427.59 ppb
2015-09-213509210445.85 ppb
2015-12-21351221067ND
2015-12-21351221073ND
2015-12-213512210693.31 ppb
2015-12-21351221071ND
2016-03-213603211077.89 ppb
2016-03-213603211018.70 ppb
2016-03-213603211055.25 ppb
2016-03-213603211036.39 ppb
2016-06-203606200614.89 ppb
2016-06-203606200578.31 ppb
2016-06-20360620059ND
2016-06-2036062006321.1 ppb
2016-09-1936091914514.9 ppb
2016-09-193609191495.00 ppb
2016-09-19360919151ND
2016-09-1936091914713.3 ppb
2016-12-193612190963.71 ppb
2016-12-193612190943.16 ppb
2016-12-19361219100ND
2016-12-193612190983.52 ppb
2017-03-203703200703.32 ppb
2017-03-20370320066ND
2017-03-20370320072ND
2017-03-203703200683.63 ppb
2017-06-19370619076ND
2017-06-1937061907413.6 ppb
2017-06-193706190707.01 ppb
2017-06-1937061907217.9 ppb
2017-09-1837091806510.1 ppb
2017-09-183709180613.84 ppb
2017-09-1837091806318.0 ppb
2017-09-18370918067ND
2017-12-183712181143.19 ppb
2017-12-18371218118ND
2017-12-183712181163.29 ppb
2017-12-18371218112ND
2018-03-19380319075ND
2018-03-19380319069ND
2018-03-193803190713.46 ppb
2018-03-193803190732.96 ppb
2018-06-18380618073ND
2018-06-18380618067ND
2018-06-183806180712.55 ppb
2018-06-183806180692.97 ppb
2018-09-173809170452.98 ppb
2018-09-173809170435.25 ppb
2018-09-17380917047ND
2018-09-173809170412.11 ppb
2018-12-173812170111.83 ppb
2018-12-173812170092.78 ppb
2018-12-17381217013ND
2018-12-17381217007ND
2019-03-19390320144.214.4 ppb
2019-03-19390320142.214.1 ppb
2019-03-19390320143.211.8 ppb
2019-03-19390320141.29.18 ppb
2019-06-18390619015.2ND
2019-06-18390619014.22.82 ppb
2019-06-18390619012.24.72 ppb
2019-06-18390619013.24.16 ppb
2019-09-17390917187.2ND
2019-09-17390917184.24.04 ppb
2019-09-17390917185.210.00 ppb
2019-09-17390917186.28.62 ppb
2019-12-17391217048.24.31 ppb
2019-12-17391217049.24.88 ppb
2019-12-17391217050.23.30 ppb
2019-12-17391217051.23.49 ppb