Menu

EWG's Tap Water Database

Donate

Dichloroacetic acid

Calcasieu Parish WW District 9 Carlyss

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.

 

82

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
20111.06 ppb221.06 ppb
2012N/A00N/A
20131.16 ppb2416ND - 2.39 ppb
20140.475 ppb248ND - 1.90 ppb
20151.18 ppb3226ND - 2.00 ppb

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.7 ppb

The health guideline of 0.7 ppb for dichloroacetic acid was defined by the Environmental Protection Agency as 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.

EPA Maximum Contaminant
Level Goal (MCLG)0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2011-07-08S11070084A1.06 ppb
2011-07-08S11070084A1.06 ppb
2013-04-09S13040115A1.70 ppb
2013-04-09S13040117A1.76 ppb
2013-04-09S13040114A2.24 ppb
2013-04-09S13040114A2.24 ppb
2013-04-09S13040115A1.70 ppb
2013-04-09S13040116A1.49 ppb
2013-04-09S13040117A1.76 ppb
2013-04-09S13040116A1.49 ppb
2013-07-01S13070037A2.39 ppb
2013-07-01S13070038AND
2013-07-01S13070039A1.61 ppb
2013-07-01S13070040AND
2013-07-01S13070039A1.61 ppb
2013-07-01S13070037A2.39 ppb
2013-07-01S13070040AND
2013-07-01S13070038AND
2013-10-08S13100179A1.64 ppb
2013-10-08S13100179A1.64 ppb
2013-10-08S13100180AND
2013-10-08S13100180AND
2013-10-08S1300178AND
2013-10-08S13100177A1.07 ppb
2013-10-08S1300178AND
2013-10-08S13100177A1.07 ppb
2014-04-08S14040199AND
2014-04-08S14040202AND
2014-04-08S14040201AND
2014-04-08S14040200AND
2014-04-08S14040199AND
2014-04-08S14040201AND
2014-04-08S14040200AND
2014-04-08S14040202AND
2014-07-0335145595002ND
2014-07-03351455950031.50 ppb
2014-07-0335145595004ND
2014-07-03351455950031.50 ppb
2014-07-03351455950011.20 ppb
2014-07-0335145595004ND
2014-07-0335145595002ND
2014-07-03351455950011.20 ppb
2014-10-01L0048867-011.10 ppb
2014-10-01L0048867-031.90 ppb
2014-10-01L0048867-04ND
2014-10-01L0048867-02ND
2014-10-01L0048867-04ND
2014-10-01L0048867-011.10 ppb
2014-10-01L0048867-02ND
2014-10-01L0048867-031.90 ppb
2015-01-06L0052756-04ND
2015-01-06L0052756-03ND
2015-01-06L0052756-02ND
2015-01-06L0052756-011.60 ppb
2015-01-06L0052756-04ND
2015-01-06L0052756-011.60 ppb
2015-01-06L0052756-03ND
2015-01-06L0052756-02ND
2015-04-07LA5868-31.50 ppb
2015-04-07LA5868-40.890 ppb
2015-04-07LA5868-12.00 ppb
2015-04-07LA5868-21.70 ppb
2015-04-07LA5868-40.890 ppb
2015-04-07LA5868-31.50 ppb
2015-04-07LA5868-21.70 ppb
2015-04-07LA5868-12.00 ppb
2015-07-07351975490011.80 ppb
2015-07-07351975490021.000 ppb
2015-07-07351975490031.70 ppb
2015-07-07351975490041.10 ppb
2015-07-07351975490031.70 ppb
2015-07-07351975490041.10 ppb
2015-07-07351975490021.000 ppb
2015-07-07351975490011.80 ppb
2015-10-06LA12620-11.40 ppb
2015-10-06LA12620-31.90 ppb
2015-10-06LA12620-41.40 ppb
2015-10-06LA12620-41.40 ppb
2015-10-06LA12620-31.90 ppb
2015-10-06LA12620-11.40 ppb
2015-10-06LA12620-20.850 ppb
2015-10-06LA12620-20.850 ppb