Dichloroacetic acid

City of Denham Springs Water System

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

192

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	N/A	0	0	N/A
2014	ND	32	0	ND
2015	0.476 ppb	32	2	ND - 7.62 ppb
2016	ND	32	0	ND
2017	2.31 ppb	32	30	ND - 4.80 ppb
2018	3.78 ppb	32	32	0.550 ppb - 8.40 ppb
2019	2.14 ppb	32	28	ND - 7.90 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
2014-02-27	1281491	ND
2014-02-27	1281492	ND
2014-02-27	1281493	ND
2014-02-27	1281496	ND
2014-02-27	1281491	ND
2014-02-27	1281492	ND
2014-02-27	1281493	ND
2014-02-27	1281496	ND
2014-05-29	1305553	ND
2014-05-29	1305558	ND
2014-05-29	1305559	ND
2014-05-29	1305560	ND
2014-05-29	1305553	ND
2014-05-29	1305558	ND
2014-05-29	1305559	ND
2014-05-29	1305560	ND
2014-08-07	1324590	ND
2014-08-07	1324595	ND
2014-08-07	1324596	ND
2014-08-07	1324597	ND
2014-08-07	1324590	ND
2014-08-07	1324595	ND
2014-08-07	1324596	ND
2014-08-07	1324597	ND
2014-11-25	1353453	ND
2014-11-25	1353454	ND
2014-11-25	1353455	ND
2014-11-25	1353459	ND
2014-11-25	1353453	ND
2014-11-25	1353454	ND
2014-11-25	1353455	ND
2014-11-25	1353459	ND
2015-02-18	1373929	ND
2015-02-18	1373933	ND
2015-02-18	1373934	ND
2015-02-18	1373935	ND
2015-02-18	1373929	ND
2015-02-18	1373933	ND
2015-02-18	1373934	ND
2015-02-18	1373935	ND
2015-05-20	1397046	ND
2015-05-20	1397047	ND
2015-05-20	1397048	ND
2015-05-20	1397054	ND
2015-05-20	1397046	ND
2015-05-20	1397047	ND
2015-05-20	1397048	ND
2015-05-20	1397054	ND
2015-08-19	1421235	ND
2015-08-19	1421236	7.62 ppb
2015-08-19	1421237	ND
2015-08-19	1421238	ND
2015-08-19	1421235	ND
2015-08-19	1421236	7.62 ppb
2015-08-19	1421237	ND
2015-08-19	1421238	ND
2015-11-24	1447170	ND
2015-11-24	1447171	ND
2015-11-24	1447172	ND
2015-11-24	1447173	ND
2015-11-24	1447170	ND
2015-11-24	1447171	ND
2015-11-24	1447172	ND
2015-11-24	1447173	ND
2016-02-18	1469077	ND
2016-02-18	1469078	ND
2016-02-18	1469079	ND
2016-02-18	1469080	ND
2016-02-18	1469077	ND
2016-02-18	1469078	ND
2016-02-18	1469079	ND
2016-02-18	1469080	ND
2016-05-18	1492839	ND
2016-05-18	1492840	ND
2016-05-18	1492841	ND
2016-05-18	1492842	ND
2016-05-18	1492839	ND
2016-05-18	1492840	ND
2016-05-18	1492841	ND
2016-05-18	1492842	ND
2016-08-10	1515341	ND
2016-08-10	1515343	ND
2016-08-10	1515344	ND
2016-08-10	1515345	ND
2016-08-10	1515341	ND
2016-08-10	1515343	ND
2016-08-10	1515344	ND
2016-08-10	1515345	ND
2016-11-22	1543480	ND
2016-11-22	1543481	ND
2016-11-22	1543482	ND
2016-11-22	1543483	ND
2016-11-22	1543480	ND
2016-11-22	1543481	ND
2016-11-22	1543482	ND
2016-11-22	1543483	ND
2017-02-06	35293409001	3.80 ppb
2017-02-06	35293409002	2.60 ppb
2017-02-06	35293409003	4.80 ppb
2017-02-06	35293409004	0.630 ppb
2017-02-06	35293409001	3.80 ppb
2017-02-06	35293409002	2.60 ppb
2017-02-06	35293409003	4.80 ppb
2017-02-06	35293409004	0.630 ppb
2017-05-04	35310507002	3.90 ppb
2017-05-04	35310507003	ND
2017-05-04	35310507004	2.60 ppb
2017-05-04	35310507005	3.20 ppb
2017-05-04	35310507002	3.90 ppb
2017-05-04	35310507003	ND
2017-05-04	35310507004	2.60 ppb
2017-05-04	35310507005	3.20 ppb
2017-08-01	35327958001	2.70 ppb
2017-08-01	35327958002	2.70 ppb
2017-08-01	35327958003	1.50 ppb
2017-08-01	35327958004	0.950 ppb
2017-08-01	35327958001	2.70 ppb
2017-08-01	35327958002	2.70 ppb
2017-08-01	35327958003	1.50 ppb
2017-08-01	35327958004	0.950 ppb
2017-11-02	35345864001	0.700 ppb
2017-11-02	35345864002	4.30 ppb
2017-11-02	35345864003	2.00 ppb
2017-11-02	35345864004	0.530 ppb
2017-11-02	35345864001	0.700 ppb
2017-11-02	35345864002	4.30 ppb
2017-11-02	35345864003	2.00 ppb
2017-11-02	35345864004	0.530 ppb
2018-02-01	35371846001	4.30 ppb
2018-02-01	35371846002	5.70 ppb
2018-02-01	35371846003	0.750 ppb
2018-02-01	35371846004	5.40 ppb
2018-02-01	35371846001	4.30 ppb
2018-02-01	35371846002	5.70 ppb
2018-02-01	35371846003	0.750 ppb
2018-02-01	35371846004	5.40 ppb
2018-05-04	35390308001	4.60 ppb
2018-05-04	35390308002	4.70 ppb
2018-05-04	35390308003	5.80 ppb
2018-05-04	35390308004	0.830 ppb
2018-05-04	35390308001	4.60 ppb
2018-05-04	35390308002	4.70 ppb
2018-05-04	35390308003	5.80 ppb
2018-05-04	35390308004	0.830 ppb
2018-08-07	35409812001	4.90 ppb
2018-08-07	35409812002	8.40 ppb
2018-08-07	35409812003	8.10 ppb
2018-08-07	35409812004	0.910 ppb
2018-08-07	35409812001	4.90 ppb
2018-08-07	35409812002	8.40 ppb
2018-08-07	35409812003	8.10 ppb
2018-08-07	35409812004	0.910 ppb
2018-11-02	35428194001	1.50 ppb
2018-11-02	35428194002	2.90 ppb
2018-11-02	35428194003	0.550 ppb
2018-11-02	35428194004	1.10 ppb
2018-11-02	35428194001	1.50 ppb
2018-11-02	35428194002	2.90 ppb
2018-11-02	35428194003	0.550 ppb
2018-11-02	35428194004	1.10 ppb
2019-02-15	35448841001	1.50 ppb
2019-02-15	35448841002	2.30 ppb
2019-02-15	35448841003	4.60 ppb
2019-02-15	35448841004	1.20 ppb
2019-02-15	35448841001	1.50 ppb
2019-02-15	35448841002	2.30 ppb
2019-02-15	35448841003	4.60 ppb
2019-02-15	35448841004	1.20 ppb
2019-05-03	35466097001	ND
2019-05-03	35466097002	1.30 ppb
2019-05-03	35466097003	7.90 ppb
2019-05-03	35466097004	ND
2019-05-03	35466097001	ND
2019-05-03	35466097002	1.30 ppb
2019-05-03	35466097003	7.90 ppb
2019-05-03	35466097004	ND
2019-08-01	35486871001	1.40 ppb
2019-08-01	35486871002	1.80 ppb
2019-08-01	35486871003	2.10 ppb
2019-08-01	35486871004	0.930 ppb
2019-08-01	35486871001	1.40 ppb
2019-08-01	35486871002	1.80 ppb
2019-08-01	35486871003	2.10 ppb
2019-08-01	35486871004	0.930 ppb
2019-11-01	35509128001	1.20 ppb
2019-11-01	35509128002	3.50 ppb
2019-11-01	35509128003	3.90 ppb
2019-11-01	35509128004	0.660 ppb
2019-11-01	35509128001	1.20 ppb
2019-11-01	35509128002	3.50 ppb
2019-11-01	35509128003	3.90 ppb
2019-11-01	35509128004	0.660 ppb