Trichloroacetic acid

City of Jennings Water System

Trichloroacetic 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)

140

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	0.200 ppb	32	6	ND - 1.10 ppb
2015	0.647 ppb	32	20	ND - 1.20 ppb
2016	0.724 ppb	32	20	ND - 1.40 ppb
2017	0.897 ppb	32	30	ND - 1.30 ppb
2018	0.916 ppb	32	32	0.360 ppb - 1.60 ppb
2019	1.28 ppb	32	32	0.910 ppb - 1.90 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic 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	35127181001	ND
2014-02-18	35127181002	1.000 ppb
2014-02-18	35127181003	1.10 ppb
2014-02-18	35127181004	ND
2014-02-18	35127181001	ND
2014-02-18	35127181002	1.000 ppb
2014-02-18	35127181003	1.10 ppb
2014-02-18	35127181004	ND
2014-05-21	35139144001	ND
2014-05-21	35139144002	ND
2014-05-21	35139144003	ND
2014-05-21	35139144004	1.10 ppb
2014-05-21	35139144001	ND
2014-05-21	35139144002	ND
2014-05-21	35139144003	ND
2014-05-21	35139144004	1.10 ppb
2014-08-21	35151775001	ND
2014-08-21	35151775002	ND
2014-08-21	35151775003	ND
2014-08-21	35151775004	ND
2014-08-21	35151775001	ND
2014-08-21	35151775002	ND
2014-08-21	35151775003	ND
2014-08-21	35151775004	ND
2014-11-19	35164769001	ND
2014-11-19	35164769002	ND
2014-11-19	35164769003	ND
2014-11-19	35164769004	ND
2014-11-19	35164769001	ND
2014-11-19	35164769002	ND
2014-11-19	35164769003	ND
2014-11-19	35164769004	ND
2015-02-18	35176277001	ND
2015-02-18	35176277002	ND
2015-02-18	35176277003	ND
2015-02-18	35176277004	ND
2015-02-18	35176277001	ND
2015-02-18	35176277002	ND
2015-02-18	35176277003	ND
2015-02-18	35176277004	ND
2015-05-22	35190227001	1.20 ppb
2015-05-22	35190227002	1.000 ppb
2015-05-22	35190227003	1.000 ppb
2015-05-22	35190227004	1.000 ppb
2015-05-22	35190227001	1.20 ppb
2015-05-22	35190227002	1.000 ppb
2015-05-22	35190227003	1.000 ppb
2015-05-22	35190227004	1.000 ppb
2015-08-21	35204150001	1.05 ppb
2015-08-21	35204150002	1.05 ppb
2015-08-21	35204150003	1.000 ppb
2015-08-21	35204150004	1.05 ppb
2015-08-21	35204150001	1.05 ppb
2015-08-21	35204150002	1.05 ppb
2015-08-21	35204150003	1.000 ppb
2015-08-21	35204150004	1.05 ppb
2015-11-16	35216976001	ND
2015-11-16	35216976002	1.000 ppb
2015-11-16	35216976003	1.000 ppb
2015-11-16	35216976004	ND
2015-11-16	35216976001	ND
2015-11-16	35216976002	1.000 ppb
2015-11-16	35216976003	1.000 ppb
2015-11-16	35216976004	ND
2016-02-16	35230236001	ND
2016-02-16	35230236002	ND
2016-02-16	35230236003	ND
2016-02-16	35230236004	ND
2016-02-16	35230236001	ND
2016-02-16	35230236002	ND
2016-02-16	35230236003	ND
2016-02-16	35230236004	ND
2016-05-18	35245504001	0.980 ppb
2016-05-18	35245504002	1.40 ppb
2016-05-18	35245504003	1.30 ppb
2016-05-18	35245504004	1.10 ppb
2016-05-18	35245504001	0.980 ppb
2016-05-18	35245504002	1.40 ppb
2016-05-18	35245504003	1.30 ppb
2016-05-18	35245504004	1.10 ppb
2016-08-19	35261515001	ND
2016-08-19	35261515002	1.30 ppb
2016-08-19	35261515003	0.850 ppb
2016-08-19	35261515004	ND
2016-08-19	35261515001	ND
2016-08-19	35261515002	1.30 ppb
2016-08-19	35261515003	0.850 ppb
2016-08-19	35261515004	ND
2016-11-15	35277679001	1.10 ppb
2016-11-15	35277679002	1.30 ppb
2016-11-15	35277679003	1.30 ppb
2016-11-15	35277679004	0.960 ppb
2016-11-15	35277679001	1.10 ppb
2016-11-15	35277679002	1.30 ppb
2016-11-15	35277679003	1.30 ppb
2016-11-15	35277679004	0.960 ppb
2017-02-02	35292873001	0.780 ppb
2017-02-02	35292873002	0.820 ppb
2017-02-02	35292873003	0.770 ppb
2017-02-02	35292873004	ND
2017-02-02	35292873001	0.780 ppb
2017-02-02	35292873002	0.820 ppb
2017-02-02	35292873003	0.770 ppb
2017-02-02	35292873004	ND
2017-05-18	35313430001	1.000 ppb
2017-05-18	35313430002	0.970 ppb
2017-05-18	35313430003	1.10 ppb
2017-05-18	35313430004	1.30 ppb
2017-05-18	35313430001	1.000 ppb
2017-05-18	35313430002	0.970 ppb
2017-05-18	35313430003	1.10 ppb
2017-05-18	35313430004	1.30 ppb
2017-08-02	35328341003	0.950 ppb
2017-08-02	35328341004	0.960 ppb
2017-08-02	35328341003	0.950 ppb
2017-08-02	35328341004	0.960 ppb
2017-08-03	35328341001	1.000 ppb
2017-08-03	35328341002	0.900 ppb
2017-08-03	35328341001	1.000 ppb
2017-08-03	35328341002	0.900 ppb
2017-11-08	35347126001	1.000 ppb
2017-11-08	35347126002	1.10 ppb
2017-11-08	35347126003	0.940 ppb
2017-11-08	35347126004	0.760 ppb
2017-11-08	35347126001	1.000 ppb
2017-11-08	35347126002	1.10 ppb
2017-11-08	35347126003	0.940 ppb
2017-11-08	35347126004	0.760 ppb
2018-02-01	35371887001	0.830 ppb
2018-02-01	35371887002	0.910 ppb
2018-02-01	35371887003	0.880 ppb
2018-02-01	35371887004	0.850 ppb
2018-02-01	35371887001	0.830 ppb
2018-02-01	35371887002	0.910 ppb
2018-02-01	35371887003	0.880 ppb
2018-02-01	35371887004	0.850 ppb
2018-05-10	35391907001	0.690 ppb
2018-05-10	35391907002	0.550 ppb
2018-05-10	35391907003	0.730 ppb
2018-05-10	35391907004	0.360 ppb
2018-05-10	35391907001	0.690 ppb
2018-05-10	35391907002	0.550 ppb
2018-05-10	35391907003	0.730 ppb
2018-05-10	35391907004	0.360 ppb
2018-08-09	35410480001	1.60 ppb
2018-08-09	35410480002	1.10 ppb
2018-08-09	35410480003	1.20 ppb
2018-08-09	35410480004	1.40 ppb
2018-08-09	35410480001	1.60 ppb
2018-08-09	35410480002	1.10 ppb
2018-08-09	35410480003	1.20 ppb
2018-08-09	35410480004	1.40 ppb
2018-11-02	35428223001	0.840 ppb
2018-11-02	35428223002	0.920 ppb
2018-11-02	35428223003	0.940 ppb
2018-11-02	35428223004	0.850 ppb
2018-11-02	35428223001	0.840 ppb
2018-11-02	35428223002	0.920 ppb
2018-11-02	35428223003	0.940 ppb
2018-11-02	35428223004	0.850 ppb
2019-02-07	35447175001	1.80 ppb
2019-02-07	35447175002	1.80 ppb
2019-02-07	35447175003	1.70 ppb
2019-02-07	35447175004	1.90 ppb
2019-02-07	35447175001	1.80 ppb
2019-02-07	35447175002	1.80 ppb
2019-02-07	35447175003	1.70 ppb
2019-02-07	35447175004	1.90 ppb
2019-05-01	35466140001	1.10 ppb
2019-05-01	35466140002	1.10 ppb
2019-05-01	35466140003	1.20 ppb
2019-05-01	35466140004	1.10 ppb
2019-05-01	35466140001	1.10 ppb
2019-05-01	35466140002	1.10 ppb
2019-05-01	35466140003	1.20 ppb
2019-05-01	35466140004	1.10 ppb
2019-08-02	35487149001	1.20 ppb
2019-08-02	35487149002	1.30 ppb
2019-08-02	35487149003	1.30 ppb
2019-08-02	35487149004	0.920 ppb
2019-08-02	35487149001	1.20 ppb
2019-08-02	35487149002	1.30 ppb
2019-08-02	35487149003	1.30 ppb
2019-08-02	35487149004	0.920 ppb
2019-11-08	35511083001	0.990 ppb
2019-11-08	35511083002	1.10 ppb
2019-11-08	35511083003	1.10 ppb
2019-11-08	35511083004	0.910 ppb
2019-11-08	35511083001	0.990 ppb
2019-11-08	35511083002	1.10 ppb
2019-11-08	35511083003	1.10 ppb
2019-11-08	35511083004	0.910 ppb