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EWG's Tap Water Database — 2019 UPDATE

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Dichloroacetic acid

City of Santa Barbara 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.

 

188

Samples

0

Samples exceeding legal limit (MCL)

99

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.250 ppb81ND - 2.00 ppb
20130.969 ppb327ND - 6.00 ppb
20140.735 ppb348ND - 5.00 ppb
20151.79 ppb3421ND - 4.20 ppb
20161.58 ppb4026ND - 4.00 ppb
20174.10 ppb4036ND - 12.0 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
2012-11-055867-044-0953ND
2012-11-055867-045-1048ND
2012-11-055867-046-0906ND
2012-11-055867-047-09322.00 ppb
2012-11-055867-048-1012ND
2012-11-055867-049-0845ND
2012-11-055867-050-1111ND
2012-11-055867-051-1133ND
2013-02-045867-044-0942ND
2013-02-045867-045-13043.00 ppb
2013-02-045867-046-09026.00 ppb
2013-02-045867-047-09206.00 ppb
2013-02-045867-048-09524.00 ppb
2013-02-045867-049-08414.00 ppb
2013-02-045867-050-11114.00 ppb
2013-02-045867-051-10214.00 ppb
2013-05-065867-044-1043ND
2013-05-065867-045-1121ND
2013-05-065867-046-1002ND
2013-05-065867-047-1023ND
2013-05-065867-048-1058ND
2013-05-065867-049-0938ND
2013-05-065867-050-1142ND
2013-05-065867-051-1156ND
2013-08-055867-044-0839ND
2013-08-055867-045-0858ND
2013-08-055867-046-0919ND
2013-08-055867-047-0940ND
2013-08-055867-048-0958ND
2013-08-055867-049-1128ND
2013-08-055867-050-1023ND
2013-08-055867-051-1106ND
2013-11-045867-044-0847ND
2013-11-045867-045-0937ND
2013-11-045867-046-0803ND
2013-11-045867-047-0826ND
2013-11-045867-048-0904ND
2013-11-045867-049-0741ND
2013-11-045867-050-1002ND
2013-11-045867-051-1028ND
2014-01-145867-004-0911ND
2014-01-145867-054-0924ND
2014-02-035867-044-1143ND
2014-02-035867-045-1006ND
2014-02-035867-046-10443.00 ppb
2014-02-035867-047-1117ND
2014-02-035867-048-1202ND
2014-02-035867-049-1023ND
2014-02-035867-050-13042.00 ppb
2014-02-035867-051-1230ND
2014-05-055867-044-1158ND
2014-05-055867-045-0912ND
2014-05-055867-046-0956ND
2014-05-055867-047-1022ND
2014-05-055867-048-1217ND
2014-05-055867-049-0932ND
2014-05-055867-050-0820ND
2014-05-055867-051-0847ND
2014-08-045867-044-0941ND
2014-08-045867-045-08183.00 ppb
2014-08-045867-046-08573.00 ppb
2014-08-045867-047-09215.00 ppb
2014-08-045867-048-0956ND
2014-08-045867-049-0836ND
2014-08-045867-050-1043ND
2014-08-045867-051-07593.00 ppb
2014-11-045867-044-1052ND
2014-11-045867-045-0844ND
2014-11-045867-046-10013.00 ppb
2014-11-045867-047-10263.00 ppb
2014-11-045867-048-1110ND
2014-11-045867-049-0940ND
2014-11-045867-050-0914ND
2014-11-045867-051-0818ND
2015-02-025867-044-0924ND
2015-02-025867-045-0947ND
2015-02-025867-046-1010ND
2015-02-025867-047-10432.00 ppb
2015-02-025867-048-10582.00 ppb
2015-02-025867-049-1150ND
2015-02-025867-050-0906ND
2015-02-025867-051-1129ND
2015-05-049590-044-1107ND
2015-05-049590-045-09453.40 ppb
2015-05-049590-046-10253.20 ppb
2015-05-049590-047-10493.60 ppb
2015-05-049590-048-11214.10 ppb
2015-05-049590-049-10063.70 ppb
2015-05-049590-050-12102.70 ppb
2015-05-049590-051-11481.40 ppb
2015-08-039590-044-0745ND
2015-08-039590-045-09403.20 ppb
2015-08-039590-046-09123.60 ppb
2015-08-039590-047-0852ND
2015-08-039590-048-0810ND
2015-08-039590-049-08302.90 ppb
2015-08-039590-050-10102.20 ppb
2015-08-039590-051-10332.00 ppb
2015-10-219590-004-0947ND
2015-10-219590-054-10021.40 ppb
2015-11-029590-044-1055ND
2015-11-029590-045-1158ND
2015-11-029590-046-10054.20 ppb
2015-11-029590-047-10293.90 ppb
2015-11-029590-048-11083.60 ppb
2015-11-029590-049-09464.00 ppb
2015-11-029590-050-08581.80 ppb
2015-11-029590-051-11372.00 ppb
2016-01-129590-004-0856ND
2016-01-129590-054-0910ND
2016-02-019590-044-1126ND
2016-02-019590-045-1008ND
2016-02-019590-046-10482.60 ppb
2016-02-019590-047-11053.10 ppb
2016-02-019590-048-11412.60 ppb
2016-02-019590-049-10262.00 ppb
2016-02-019590-050-12271.50 ppb
2016-02-019590-051-12501.70 ppb
2016-04-069590-004-0828ND
2016-04-069590-054-0846ND
2016-05-029590-044-1201ND
2016-05-029590-045-1031ND
2016-05-029590-046-11113.60 ppb
2016-05-029590-047-11361.60 ppb
2016-05-029590-048-12133.50 ppb
2016-05-029590-049-10513.60 ppb
2016-05-029590-050-12553.00 ppb
2016-05-029590-051-10052.50 ppb
2016-07-129590-004-0835ND
2016-07-129590-054-08451.000 ppb
2016-08-019590-044-1021ND
2016-08-019590-045-10552.80 ppb
2016-08-019590-046-09323.90 ppb
2016-08-019590-047-09561.80 ppb
2016-08-019590-048-10344.00 ppb
2016-08-019590-049-09133.70 ppb
2016-08-019590-050-11182.10 ppb
2016-08-019590-051-11432.90 ppb
2016-10-129590-004-1023ND
2016-10-129590-054-1120ND
2016-11-079590-044-1202ND
2016-11-079590-045-12401.50 ppb
2016-11-079590-046-11191.70 ppb
2016-11-079590-047-11421.40 ppb
2016-11-079590-048-12182.00 ppb
2016-11-079590-049-09261.80 ppb
2016-11-079590-050-13071.40 ppb
2016-11-079590-051-0906ND
2017-01-119590-004-1034ND
2017-01-119590-054-1043ND
2017-02-069590-044-09471.40 ppb
2017-02-069590-045-1057ND
2017-02-069590-046-08441.000 ppb
2017-02-069590-047-09231.10 ppb
2017-02-069590-048-10341.20 ppb
2017-02-069590-049-08181.20 ppb
2017-02-069590-050-11231.10 ppb
2017-02-069590-051-1013ND
2017-04-059590-004-09461.50 ppb
2017-04-059590-054-09563.70 ppb
2017-05-019590-044-12391.000 ppb
2017-05-019590-045-10146.30 ppb
2017-05-019590-046-11278.50 ppb
2017-05-019590-047-12021.40 ppb
2017-05-019590-048-13008.80 ppb
2017-05-019590-049-10488.00 ppb
2017-05-019590-050-13529.80 ppb
2017-05-019590-051-09107.50 ppb
2017-07-199590-004-09331.80 ppb
2017-07-199590-054-09453.80 ppb
2017-08-079590-044-12251.20 ppb
2017-08-079590-045-10496.00 ppb
2017-08-079590-046-113112.0 ppb
2017-08-079590-047-12006.40 ppb
2017-08-079590-048-12422.10 ppb
2017-08-079590-049-11089.50 ppb
2017-08-079590-050-13303.70 ppb
2017-08-079590-051-13063.80 ppb
2017-10-049590-004-11241.20 ppb
2017-10-049590-054-11402.50 ppb
2017-11-069590-044-12351.30 ppb
2017-11-069590-045-09375.20 ppb
2017-11-069590-046-11399.70 ppb
2017-11-069590-047-12137.70 ppb
2017-11-069590-048-13049.40 ppb
2017-11-069590-049-11018.40 ppb
2017-11-069590-050-12182.20 ppb
2017-11-069590-051-13002.50 ppb