Dichloroacetic acid

City of Edmond - Arcadia Lake

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
2014	2.69 ppb	32	25	ND - 7.06 ppb
2015	0.173 ppb	32	1	ND - 5.52 ppb
2016	ND	32	0	ND
2017	0.692 ppb	32	3	ND - 10.8 ppb
2018	ND	32	0	ND
2019	0.821 ppb	32	3	ND - 10.7 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
2014-02-18	4B20042-01	ND
2014-02-18	4B20042-02	ND
2014-02-18	4B20042-03	ND
2014-02-18	4B20042-04	3.69 ppb
2014-02-18	4B20042-05	7.06 ppb
2014-02-18	4B20042-06	2.56 ppb
2014-02-18	4B20042-07	4.11 ppb
2014-02-24	4C06027-01	4.32 ppb
2014-05-01	4E01058-01	ND
2014-05-01	4E01058-02	ND
2014-05-01	4E01058-03	ND
2014-05-01	4E01058-04	3.08 ppb
2014-05-01	4E01058-05	4.53 ppb
2014-05-01	4E01058-06	2.31 ppb
2014-05-01	4E01058-07	ND
2014-05-01	4E01058-08	2.25 ppb
2014-08-04	4H05108-01	3.47 ppb
2014-08-04	4H05108-03	3.18 ppb
2014-08-04	4H05108-04	3.05 ppb
2014-08-04	4H05108-06	3.61 ppb
2014-08-04	4H05108-07	3.06 ppb
2014-08-04	4H05108-08	6.02 ppb
2014-08-05	4H05108-02	1.05 ppb
2014-08-05	4H05108-05	4.21 ppb
2014-11-03	4K05006-01	3.52 ppb
2014-11-03	4K05006-02	2.50 ppb
2014-11-03	4K05006-03RE1	1.86 ppb
2014-11-03	4K05006-04RE1	1.87 ppb
2014-11-03	4K05006-05	6.64 ppb
2014-11-03	4K05006-06	2.72 ppb
2014-11-03	4K05006-07	1.77 ppb
2014-11-03	4K05006-08	3.58 ppb
2015-02-09	1372150	ND
2015-02-09	1372152	ND
2015-02-09	1372154	ND
2015-02-09	1372156	ND
2015-02-09	1372158	ND
2015-02-09	1372160	ND
2015-02-09	1372162	ND
2015-02-09	1372164	ND
2015-05-04	1393684	ND
2015-05-04	1393686	ND
2015-05-04	1393688	ND
2015-05-04	1393690	ND
2015-05-04	1393692	5.52 ppb
2015-05-04	1393694	ND
2015-05-04	1393696	ND
2015-05-04	1393698	ND
2015-08-03	1416214	ND
2015-08-03	1416216	ND
2015-08-03	1416218	ND
2015-08-03	1416221	ND
2015-08-03	1416223	ND
2015-08-03	1416225	ND
2015-08-03	1416227	ND
2015-08-03	1416229	ND
2015-11-02	1441401	ND
2015-11-02	1441403	ND
2015-11-02	1441405	ND
2015-11-02	1441407	ND
2015-11-02	1441409	ND
2015-11-02	1441411	ND
2015-11-02	1441413	ND
2015-11-02	1441415	ND
2016-02-08	1466086	ND
2016-02-08	1466089	ND
2016-02-08	1466090	ND
2016-02-08	1466091	ND
2016-02-08	1466092	ND
2016-02-08	1466093	ND
2016-02-08	1466094	ND
2016-02-08	1466095	ND
2016-05-02	1488167	ND
2016-05-02	1488169	ND
2016-05-02	1488170	ND
2016-05-02	1488171	ND
2016-05-02	1488172	ND
2016-05-02	1488173	ND
2016-05-02	1488174	ND
2016-05-02	1488175	ND
2016-07-07	1505838	ND
2016-07-07	1505840	ND
2016-07-07	1505842	ND
2016-07-07	1505844	ND
2016-07-07	1505846	ND
2016-07-07	1505848	ND
2016-07-07	1505850	ND
2016-07-07	1505852	ND
2016-11-14	1541305	ND
2016-11-14	1541308	ND
2016-11-14	1541309	ND
2016-11-14	1541310	ND
2016-11-14	1541311	ND
2016-11-14	1541312	ND
2016-11-14	1541313	ND
2016-11-14	1541314	ND
2017-02-13	1563961	ND
2017-02-13	1563964	ND
2017-02-13	1563966	ND
2017-02-13	1563968	ND
2017-02-13	1563970	ND
2017-02-13	1563972	ND
2017-02-13	1563974	ND
2017-02-13	1563976	ND
2017-05-08	1586865	ND
2017-05-08	1586870	ND
2017-05-08	1586871	ND
2017-05-08	1586872	ND
2017-05-08	1586873	ND
2017-05-08	1586874	ND
2017-05-08	1586875	ND
2017-05-08	1586876	ND
2017-08-14	1613681	ND
2017-08-14	1613682	ND
2017-08-14	1613683	ND
2017-08-14	1613684	5.85 ppb
2017-08-14	1613685	10.8 ppb
2017-08-14	1613686	ND
2017-08-14	1613687	ND
2017-08-14	1613688	5.49 ppb
2017-11-13	1639188	ND
2017-11-13	1639189	ND
2017-11-13	1639190	ND
2017-11-13	1639191	ND
2017-11-13	1639192	ND
2017-11-13	1639193	ND
2017-11-13	1639194	ND
2017-11-13	1639195	ND
2018-02-12	1662108	ND
2018-02-12	1662109	ND
2018-02-12	1662110	ND
2018-02-12	1662111	ND
2018-02-12	1662112	ND
2018-02-12	1662113	ND
2018-02-12	1662114	ND
2018-02-12	1662115	ND
2018-05-14	1685287	ND
2018-05-14	1685289	ND
2018-05-14	1685291	ND
2018-05-14	1685293	ND
2018-05-14	1685295	ND
2018-05-14	1685297	ND
2018-05-14	1685299	ND
2018-05-14	1685301	ND
2018-08-13	1710606	ND
2018-08-13	1710607	ND
2018-08-13	1710608	ND
2018-08-13	1710609	ND
2018-08-13	1710610	ND
2018-08-13	1710611	ND
2018-08-13	1710612	ND
2018-08-13	1710613	ND
2018-11-20	1737906	ND
2018-11-20	1737907	ND
2018-11-20	1737908	ND
2018-11-20	1737909	ND
2018-11-20	1737910	ND
2018-11-20	1737911	ND
2018-11-20	1737912	ND
2018-11-20	1737913	ND
2019-02-11	1759904	ND
2019-02-11	1759905	10.7 ppb
2019-02-11	1759906	ND
2019-02-11	1759907	ND
2019-02-11	1759908	ND
2019-02-11	1759909	ND
2019-02-11	1759910	ND
2019-02-11	1759911	ND
2019-05-13	1783859	ND
2019-05-13	1783860	ND
2019-05-13	1783861	ND
2019-05-13	1783862	ND
2019-05-13	1783863	ND
2019-05-13	1783864	ND
2019-05-13	1783865	ND
2019-05-13	1783866	ND
2019-08-12	1810263	ND
2019-08-12	1810264	ND
2019-08-12	1810265	ND
2019-08-12	1810266	ND
2019-08-12	1810267	9.13 ppb
2019-08-12	1810268	ND
2019-08-12	1810269	ND
2019-08-12	1810270	ND
2019-11-13	1838570	ND
2019-11-13	1838571	6.45 ppb
2019-11-13	1838572	ND
2019-11-13	1838573	ND
2019-11-13	1838574	ND
2019-11-13	1838575	ND
2019-11-13	1838576	ND
2019-11-13	1838577	ND