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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

City of Auburn

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

 

138

Samples

0

Samples exceeding legal limit (MCL)

69

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.73 ppb3214ND - 15.1 ppb
20151.15 ppb3217ND - 4.60 ppb
20160.813 ppb3112ND - 8.50 ppb
20171.55 ppb3120ND - 7.30 ppb
20181.03 ppb106ND - 3.50 ppb
2019ND20ND

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
2014-02-1182941ND
2014-02-1182937ND
2014-02-1182938ND
2014-02-1182942ND
2014-02-11829401.80 ppb
2014-02-1182939ND
2014-02-1182944ND
2014-02-1182943ND
2014-05-0783066ND
2014-05-07830701.20 ppb
2014-05-07830711.40 ppb
2014-05-0783068ND
2014-05-07830721.50 ppb
2014-05-07830671.70 ppb
2014-05-07830731.70 ppb
2014-05-078306915.1 ppb
2014-08-28835228.20 ppb
2014-08-2883524ND
2014-08-28835217.70 ppb
2014-08-2883527ND
2014-08-2883526ND
2014-08-2883523ND
2014-08-28835201.000 ppb
2014-08-28835283.00 ppb
2014-11-1883828ND
2014-11-18838253.30 ppb
2014-11-1883829ND
2014-11-1883832ND
2014-11-18838274.20 ppb
2014-11-18838313.50 ppb
2014-11-1883826ND
2014-11-1883830ND
2015-02-1183983ND
2015-02-1183990ND
2015-02-11839841.90 ppb
2015-02-1183985ND
2015-02-11839861.60 ppb
2015-02-11839892.00 ppb
2015-02-1183987ND
2015-02-1183988ND
2015-05-2184204ND
2015-05-2184205ND
2015-05-21842002.60 ppb
2015-05-2184203ND
2015-05-21842021.60 ppb
2015-05-21842061.40 ppb
2015-05-21842011.10 ppb
2015-05-2184207ND
2015-09-1684585ND
2015-09-1684588ND
2015-09-16845831.90 ppb
2015-09-16845821.40 ppb
2015-09-16845842.80 ppb
2015-09-16845862.50 ppb
2015-09-16845891.20 ppb
2015-09-16845871.50 ppb
2015-11-0584704ND
2015-11-0584705ND
2015-11-0584700ND
2015-11-0584703ND
2015-11-05847024.40 ppb
2015-11-05847064.60 ppb
2015-11-05847011.000 ppb
2015-11-05847073.20 ppb
2016-02-101.80 ppb
2016-02-10ND
2016-02-101.30 ppb
2016-02-101.30 ppb
2016-02-108.50 ppb
2016-02-10ND
2016-02-10ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-021.50 ppb
2016-06-02ND
2016-06-021.20 ppb
2016-06-02ND
2016-06-021.10 ppb
2016-08-10ND
2016-08-10ND
2016-08-101.000 ppb
2016-08-10ND
2016-08-102.30 ppb
2016-08-10ND
2016-08-101.70 ppb
2016-08-10ND
2016-11-03ND
2016-11-03ND
2016-11-03ND
2016-11-032.20 ppb
2016-11-031.30 ppb
2016-11-03ND
2016-11-03ND
2016-11-03ND
2017-03-221.40 ppb
2017-03-221.70 ppb
2017-03-22ND
2017-03-221.50 ppb
2017-03-221.30 ppb
2017-03-221.20 ppb
2017-03-221.10 ppb
2017-03-224.20 ppb
2017-05-041.70 ppb
2017-05-042.40 ppb
2017-05-043.60 ppb
2017-05-041.10 ppb
2017-05-04ND
2017-05-041.20 ppb
2017-05-041.60 ppb
2017-05-04ND
2017-08-15ND
2017-08-15ND
2017-08-151.20 ppb
2017-08-155.30 ppb
2017-08-151.40 ppb
2017-08-151.90 ppb
2017-08-155.20 ppb
2017-08-15ND
2017-11-15ND
2017-11-15ND
2017-11-151.80 ppb
2017-11-15ND
2017-11-157.30 ppb
2017-11-15ND
2017-11-15ND
2018-02-08ND
2018-02-081.000 ppb
2018-02-081.50 ppb
2018-02-081.20 ppb
2018-02-081.90 ppb
2018-02-081.20 ppb
2018-02-08ND
2018-02-08ND
2018-08-16ND
2018-08-163.50 ppb
2019-07-01ND
2019-07-01ND