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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Baton Rouge Water Company

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

 

220

Samples

0

Samples exceeding legal limit (MCL)

146

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.721 ppb4810ND - 5.40 ppb
20151.10 ppb4422ND - 5.40 ppb
20161.54 ppb3220ND - 3.90 ppb
20171.48 ppb32320.870 ppb - 2.70 ppb
20181.27 ppb3230ND - 2.80 ppb
20191.92 ppb32320.590 ppb - 4.10 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
2014-01-14201158146ND
2014-01-14201158146ND
2014-01-15201158149ND
2014-01-15201158150ND
2014-01-15201158151ND
2014-01-152011581525.00 ppb
2014-01-15201158153ND
2014-01-15201158149ND
2014-01-15201158150ND
2014-01-15201158151ND
2014-01-152011581525.00 ppb
2014-01-15201158153ND
2014-04-15202865004ND
2014-04-15202865005ND
2014-04-152028650065.40 ppb
2014-04-15202866002ND
2014-04-15202866003ND
2014-04-15202866006ND
2014-04-15202865004ND
2014-04-15202865005ND
2014-04-152028650065.40 ppb
2014-04-15202866002ND
2014-04-15202866003ND
2014-04-15202866006ND
2014-07-17207090001ND
2014-07-17207090002ND
2014-07-17207090003ND
2014-07-172070900042.10 ppb
2014-07-17207090005ND
2014-07-17207090006ND
2014-07-17207090001ND
2014-07-17207090002ND
2014-07-17207090003ND
2014-07-172070900042.10 ppb
2014-07-17207090005ND
2014-07-17207090006ND
2014-10-1720112230011.20 ppb
2014-10-172011223002ND
2014-10-172011223003ND
2014-10-172011223004ND
2014-10-1720112230053.60 ppb
2014-10-172011223006ND
2014-10-1720112230011.20 ppb
2014-10-172011223002ND
2014-10-172011223003ND
2014-10-172011223004ND
2014-10-1720112230053.60 ppb
2014-10-172011223006ND
2015-01-142015090001ND
2015-01-142015090002ND
2015-01-1420150900033.40 ppb
2015-01-142015090004ND
2015-01-1420150900051.20 ppb
2015-01-1420150900061.30 ppb
2015-01-142015090001ND
2015-01-142015090002ND
2015-01-1420150900033.40 ppb
2015-01-142015090004ND
2015-01-1420150900051.20 ppb
2015-01-1420150900061.30 ppb
2015-04-1720188260015.40 ppb
2015-04-172018826002ND
2015-04-172018826003ND
2015-04-1720188260042.80 ppb
2015-04-172018826005ND
2015-04-1720188260061.10 ppb
2015-04-1720188260015.40 ppb
2015-04-172018826002ND
2015-04-172018826003ND
2015-04-1720188260042.80 ppb
2015-04-172018826005ND
2015-04-1720188260061.10 ppb
2015-07-1520228190011.60 ppb
2015-07-152022819002ND
2015-07-152022819003ND
2015-07-1520228190043.00 ppb
2015-07-152022819005ND
2015-07-152022819006ND
2015-07-1520228190011.60 ppb
2015-07-152022819002ND
2015-07-152022819003ND
2015-07-1520228190043.00 ppb
2015-07-152022819005ND
2015-07-152022819006ND
2015-10-152027291001ND
2015-10-1520272910021.30 ppb
2015-10-1520272910031.10 ppb
2015-10-1520272910042.00 ppb
2015-10-152027291001ND
2015-10-1520272910021.30 ppb
2015-10-1520272910031.10 ppb
2015-10-1520272910042.00 ppb
2016-01-152031365001ND
2016-01-1520313650023.50 ppb
2016-01-1520313650033.90 ppb
2016-01-1520313650041.10 ppb
2016-01-152031365001ND
2016-01-1520313650023.50 ppb
2016-01-1520313650033.90 ppb
2016-01-1520313650041.10 ppb
2016-04-182035422001ND
2016-04-1820354220023.70 ppb
2016-04-1820354220031.20 ppb
2016-04-1820354220041.000 ppb
2016-04-182035422001ND
2016-04-1820354220023.70 ppb
2016-04-1820354220031.20 ppb
2016-04-1820354220041.000 ppb
2016-07-182040020001ND
2016-07-1820400200023.20 ppb
2016-07-18204002003ND
2016-07-182040200041.40 ppb
2016-07-182040020001ND
2016-07-1820400200023.20 ppb
2016-07-18204002003ND
2016-07-182040200041.40 ppb
2016-10-2020445030011.90 ppb
2016-10-2020445030023.70 ppb
2016-10-202044503003ND
2016-10-202044503004ND
2016-10-2020445030011.90 ppb
2016-10-2020445030023.70 ppb
2016-10-202044503003ND
2016-10-202044503004ND
2017-01-20352901910020.950 ppb
2017-01-20352901910031.50 ppb
2017-01-20352901910041.30 ppb
2017-01-20352901910052.20 ppb
2017-01-20352901910020.950 ppb
2017-01-20352901910031.50 ppb
2017-01-20352901910041.30 ppb
2017-01-20352901910052.20 ppb
2017-04-13353065080030.910 ppb
2017-04-13353065080040.870 ppb
2017-04-13353065080050.910 ppb
2017-04-13353065080062.70 ppb
2017-04-13353065080030.910 ppb
2017-04-13353065080040.870 ppb
2017-04-13353065080050.910 ppb
2017-04-13353065080062.70 ppb
2017-07-07353226210070.960 ppb
2017-07-07353226210081.20 ppb
2017-07-07353226210091.30 ppb
2017-07-07353226210102.10 ppb
2017-07-07353226210070.960 ppb
2017-07-07353226210081.20 ppb
2017-07-07353226210091.30 ppb
2017-07-07353226210102.10 ppb
2017-10-05353406360011.70 ppb
2017-10-05353406360021.60 ppb
2017-10-05353406360030.920 ppb
2017-10-05353406360042.60 ppb
2017-10-05353406360011.70 ppb
2017-10-05353406360021.60 ppb
2017-10-05353406360030.920 ppb
2017-10-05353406360042.60 ppb
2018-01-12353683490012.20 ppb
2018-01-1235368349002ND
2018-01-12353683490030.950 ppb
2018-01-12353683490042.30 ppb
2018-01-12353683490012.20 ppb
2018-01-1235368349002ND
2018-01-12353683490030.950 ppb
2018-01-12353683490042.30 ppb
2018-04-13353861440011.50 ppb
2018-04-13353861440021.40 ppb
2018-04-13353861440031.40 ppb
2018-04-13353861440040.390 ppb
2018-04-13353861440011.50 ppb
2018-04-13353861440021.40 ppb
2018-04-13353861440031.40 ppb
2018-04-13353861440040.390 ppb
2018-07-06354026090010.860 ppb
2018-07-06354026090020.620 ppb
2018-07-06354026090030.750 ppb
2018-07-06354026090042.50 ppb
2018-07-06354026090010.860 ppb
2018-07-06354026090020.620 ppb
2018-07-06354026090030.750 ppb
2018-07-06354026090042.50 ppb
2018-10-12354240300010.970 ppb
2018-10-12354240300020.800 ppb
2018-10-12354240300030.820 ppb
2018-10-12354240300042.80 ppb
2018-10-12354240300010.970 ppb
2018-10-12354240300020.800 ppb
2018-10-12354240300030.820 ppb
2018-10-12354240300042.80 ppb
2019-01-17354431630011.70 ppb
2019-01-17354431630020.920 ppb
2019-01-17354431630030.900 ppb
2019-01-17354431630043.20 ppb
2019-01-17354431630011.70 ppb
2019-01-17354431630020.920 ppb
2019-01-17354431630030.900 ppb
2019-01-17354431630043.20 ppb
2019-04-08354604860010.900 ppb
2019-04-08354604860020.600 ppb
2019-04-08354604860030.590 ppb
2019-04-08354604860043.20 ppb
2019-04-08354604860010.900 ppb
2019-04-08354604860020.600 ppb
2019-04-08354604860030.590 ppb
2019-04-08354604860043.20 ppb
2019-07-18354835350012.10 ppb
2019-07-18354835350024.10 ppb
2019-07-18354835350033.20 ppb
2019-07-18354835350043.50 ppb
2019-07-18354835350012.10 ppb
2019-07-18354835350024.10 ppb
2019-07-18354835350033.20 ppb
2019-07-18354835350043.50 ppb
2019-10-18355062380011.000 ppb
2019-10-18355062380021.000 ppb
2019-10-18355062380031.10 ppb
2019-10-18355062380042.70 ppb
2019-10-18355062380011.000 ppb
2019-10-18355062380021.000 ppb
2019-10-18355062380031.10 ppb
2019-10-18355062380042.70 ppb