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EWG's Tap Water Database — 2019 UPDATE

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Dichloroacetic acid

Avon 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.

 

87

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND200ND
20130.103 ppb193ND - 0.790 ppb
20140.114 ppb163ND - 0.750 ppb
2015N/A00N/A
20160.218 ppb164ND - 1.80 ppb
20170.309 ppb167ND - 1.10 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
2012-02-13E202660-1-1CHND
2012-02-13E202660-2-2CHND
2012-02-13E202660-3-3CHND
2012-02-13E202660-4-4CHND
2012-02-13E202660-5-5CHND
2012-05-18E205C39-5-5CHND
2012-05-18E205C39-4-4CHND
2012-05-18E205C39-3-3CHND
2012-05-18E205C39-2-2CHND
2012-05-18E205C39-1-1CHND
2012-08-27E208I95-5-5CHND
2012-08-27E208I95-4-4CHND
2012-08-27E208I95-3-3CHND
2012-08-27E208I95-2-2CHND
2012-08-27E208I95-1-1CHND
2012-11-26E211J93-1-1CHND
2012-11-26E211J93-2-2CHND
2012-11-26E211J93-3-3CHND
2012-11-26E211J93-4-4CHND
2012-11-26E211J93-5-5CHND
2013-02-14E302947-5-5CH0.520 ppb
2013-02-14E302947-4-4CHND
2013-02-14E302947-3-3CHND
2013-02-14E302947-2-2CHND
2013-02-14E302947-1-1CHND
2013-05-21E305J33-1-1CHND
2013-05-21E305J33-2-2CHND
2013-05-21E305J33-3-3CHND
2013-05-21E305J33-4-4CHND
2013-05-21E305J33-5-5CH0.790 ppb
2013-08-23E308O40-9-1CH0.650 ppb
2013-08-23E308O40-13-5CHND
2013-08-23E308O40-12-4CHND
2013-08-23E308O40-11-3CHND
2013-08-23E308O40-10-2CHND
2013-11-15E311D00-10-2CHND
2013-11-15E311D00-11-3CHND
2013-11-15E311D00-12-5CHND
2013-11-15E311D00-9-1CHND
2014-01-16E401A25-4CHND
2014-01-16E401A25-3CHND
2014-01-16E401A25-2CHND
2014-01-16E401A25-1CHND
2014-04-15E404E43-4CHND
2014-04-15E404E43-3CHND
2014-04-15E404E43-2CHND
2014-04-15E404E43-1CHND
2014-07-14E407C09-1GEND
2014-07-14E407C09-2GEND
2014-07-14E407C09-3GE0.750 ppb
2014-07-14E407C09-4GEND
2014-10-16E410F41-4GE0.550 ppb
2014-10-16E410F41-3GEND
2014-10-16E410F41-2GE0.530 ppb
2014-10-16E410F41-1GEND
2016-01-15E601D17-4GEND
2016-01-15E601D17-3GEND
2016-01-15E601D17-2GE0.530 ppb
2016-01-15E601D17-1GE0.560 ppb
2016-04-19E605079-1GEND
2016-04-19E605079-2GEND
2016-04-19E605079-3GEND
2016-04-19E605079-4GEND
2016-07-13E607C00-4GEND
2016-07-13E607C00-3GE0.600 ppb
2016-07-13E607C00-2GEND
2016-07-13E607C00-1GE1.80 ppb
2016-10-14E610G73-1GEND
2016-10-14E610G73-2GEND
2016-10-14E610G73-3GEND
2016-10-14E610G73-4GEND
2017-01-13E701C67-4GEND
2017-01-13E701C67-3GEND
2017-01-13E701C67-2GEND
2017-01-13E701C67-1GE0.640 ppb
2017-04-13D7D1107-04HA5ND
2017-04-13D7D1107-03HA5ND
2017-04-13D7D1107-02HA50.600 ppb
2017-04-13D7D1107-01HA5ND
2017-07-14D7G1331-04HA5ND
2017-07-14D7G1331-03HA50.800 ppb
2017-07-14D7G1331-02HA51.10 ppb
2017-07-14D7G1331-01HA50.600 ppb
2017-10-13D7J1362-01HA50.600 ppb
2017-10-13D7J1362-02HA50.600 ppb
2017-10-13D7J1362-03HA5ND
2017-10-13D7J1362-04HA5ND