Dibromoacetic acid

Zachary Water System

Dibromoacetic 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)

134

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.677 ppb	32	28	ND - 1.30 ppb
2015	0.672 ppb	32	28	ND - 0.940 ppb
2016	0.314 ppb	32	12	ND - 1.10 ppb
2017	0.528 ppb	32	20	ND - 1.20 ppb
2018	0.585 ppb	32	20	ND - 1.30 ppb
2019	0.730 ppb	32	26	ND - 1.30 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for dibromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-02-03	680-98429-12	1.000 ppb
2014-02-03	680-98429-14	1.000 ppb
2014-02-03	680-98429-15	0.820 ppb
2014-02-03	680-98429-12	1.000 ppb
2014-02-03	680-98429-14	1.000 ppb
2014-02-03	680-98429-15	0.820 ppb
2014-02-04	680-98429-13	0.700 ppb
2014-02-04	680-98429-13	0.700 ppb
2014-05-07	680-101146-1	0.670 ppb
2014-05-07	680-101146-2	1.10 ppb
2014-05-07	680-101146-3	0.810 ppb
2014-05-07	680-101146-4	0.640 ppb
2014-05-07	680-101146-1	0.670 ppb
2014-05-07	680-101146-2	1.10 ppb
2014-05-07	680-101146-3	0.810 ppb
2014-05-07	680-101146-4	0.640 ppb
2014-08-18	680-104374-3	0.570 ppb
2014-08-18	680-104374-4	ND
2014-08-18	680-104374-5	0.390 ppb
2014-08-18	680-104374-6	1.30 ppb
2014-08-18	680-104374-3	0.570 ppb
2014-08-18	680-104374-4	ND
2014-08-18	680-104374-5	0.390 ppb
2014-08-18	680-104374-6	1.30 ppb
2014-11-28	680-107936-1	0.550 ppb
2014-11-28	680-107936-2	0.540 ppb
2014-11-28	680-107936-3	ND
2014-11-28	680-107936-4	0.740 ppb
2014-11-28	680-107936-1	0.550 ppb
2014-11-28	680-107936-2	0.540 ppb
2014-11-28	680-107936-3	ND
2014-11-28	680-107936-4	0.740 ppb
2015-02-24	680-110191-1	0.540 ppb
2015-02-24	680-110191-2	0.940 ppb
2015-02-24	680-110191-3	0.650 ppb
2015-02-24	680-110191-4	0.740 ppb
2015-02-24	680-110191-1	0.540 ppb
2015-02-24	680-110191-2	0.940 ppb
2015-02-24	680-110191-3	0.650 ppb
2015-02-24	680-110191-4	0.740 ppb
2015-05-26	680-112991-1	0.840 ppb
2015-05-26	680-112991-2	0.880 ppb
2015-05-26	680-112991-3	0.810 ppb
2015-05-26	680-112991-4	0.750 ppb
2015-05-26	680-112991-1	0.840 ppb
2015-05-26	680-112991-2	0.880 ppb
2015-05-26	680-112991-3	0.810 ppb
2015-05-26	680-112991-4	0.750 ppb
2015-08-05	680-115334-1	0.570 ppb
2015-08-05	680-115334-2	0.660 ppb
2015-08-05	680-115334-3	ND
2015-08-05	680-115334-4	0.820 ppb
2015-08-05	680-115334-1	0.570 ppb
2015-08-05	680-115334-2	0.660 ppb
2015-08-05	680-115334-3	ND
2015-08-05	680-115334-4	0.820 ppb
2015-11-09	680-118907-10	ND
2015-11-09	680-118907-11	0.880 ppb
2015-11-09	680-118907-12	0.810 ppb
2015-11-09	680-118907-9	0.860 ppb
2015-11-09	680-118907-10	ND
2015-11-09	680-118907-11	0.880 ppb
2015-11-09	680-118907-12	0.810 ppb
2015-11-09	680-118907-9	0.860 ppb
2016-02-16	680-122002-1	ND
2016-02-16	680-122002-2	0.820 ppb
2016-02-16	680-122002-3	0.470 ppb
2016-02-16	680-122002-4	1.10 ppb
2016-02-16	680-122002-1	ND
2016-02-16	680-122002-2	0.820 ppb
2016-02-16	680-122002-3	0.470 ppb
2016-02-16	680-122002-4	1.10 ppb
2016-05-20	680-125729-1	0.850 ppb
2016-05-20	680-125729-2	ND
2016-05-20	680-125729-3	ND
2016-05-20	680-125729-4	ND
2016-05-20	680-125729-1	0.850 ppb
2016-05-20	680-125729-2	ND
2016-05-20	680-125729-3	ND
2016-05-20	680-125729-4	ND
2016-08-09	680-128555-1	1.10 ppb
2016-08-09	680-128555-2	ND
2016-08-09	680-128555-3	ND
2016-08-09	680-128555-4	0.690 ppb
2016-08-09	680-128555-1	1.10 ppb
2016-08-09	680-128555-2	ND
2016-08-09	680-128555-3	ND
2016-08-09	680-128555-4	0.690 ppb
2016-11-07	680-131872-1	ND
2016-11-07	680-131872-2	ND
2016-11-07	680-131872-3	ND
2016-11-07	680-131872-4	ND
2016-11-07	680-131872-1	ND
2016-11-07	680-131872-2	ND
2016-11-07	680-131872-3	ND
2016-11-07	680-131872-4	ND
2017-02-09	35294573002	ND
2017-02-09	35294573003	ND
2017-02-09	35294573004	ND
2017-02-09	35294573005	ND
2017-02-09	35294573002	ND
2017-02-09	35294573003	ND
2017-02-09	35294573004	ND
2017-02-09	35294573005	ND
2017-05-05	35310607001	0.570 ppb
2017-05-05	35310607002	0.770 ppb
2017-05-05	35310607003	ND
2017-05-05	35310607004	0.710 ppb
2017-05-05	35310607001	0.570 ppb
2017-05-05	35310607002	0.770 ppb
2017-05-05	35310607003	ND
2017-05-05	35310607004	0.710 ppb
2017-08-10	35330068001	1.20 ppb
2017-08-10	35330068002	1.10 ppb
2017-08-10	35330068003	ND
2017-08-10	35330068004	0.950 ppb
2017-08-10	35330068001	1.20 ppb
2017-08-10	35330068002	1.10 ppb
2017-08-10	35330068003	ND
2017-08-10	35330068004	0.950 ppb
2017-11-02	35346239001	0.850 ppb
2017-11-02	35346239002	0.920 ppb
2017-11-02	35346239003	0.660 ppb
2017-11-02	35346239004	0.720 ppb
2017-11-02	35346239001	0.850 ppb
2017-11-02	35346239002	0.920 ppb
2017-11-02	35346239003	0.660 ppb
2017-11-02	35346239004	0.720 ppb
2018-02-01	35371906001	ND
2018-02-01	35371906002	0.890 ppb
2018-02-01	35371906003	ND
2018-02-01	35371906004	0.980 ppb
2018-02-01	35371906001	ND
2018-02-01	35371906002	0.890 ppb
2018-02-01	35371906003	ND
2018-02-01	35371906004	0.980 ppb
2018-05-04	35390335001	0.680 ppb
2018-05-04	35390335002	0.820 ppb
2018-05-04	35390335003	ND
2018-05-04	35390335004	0.880 ppb
2018-05-04	35390335001	0.680 ppb
2018-05-04	35390335002	0.820 ppb
2018-05-04	35390335003	ND
2018-05-04	35390335004	0.880 ppb
2018-08-17	35412007001	ND
2018-08-17	35412007002	1.10 ppb
2018-08-17	35412007003	ND
2018-08-17	35412007004	ND
2018-08-17	35412007001	ND
2018-08-17	35412007002	1.10 ppb
2018-08-17	35412007003	ND
2018-08-17	35412007004	ND
2018-11-02	35428205001	0.880 ppb
2018-11-02	35428205002	0.980 ppb
2018-11-02	35428205003	0.850 ppb
2018-11-02	35428205004	1.30 ppb
2018-11-02	35428205001	0.880 ppb
2018-11-02	35428205002	0.980 ppb
2018-11-02	35428205003	0.850 ppb
2018-11-02	35428205004	1.30 ppb
2019-02-01	35445755001	1.000 ppb
2019-02-01	35445755002	1.10 ppb
2019-02-01	35445755003	0.680 ppb
2019-02-01	35445755004	1.30 ppb
2019-02-01	35445755001	1.000 ppb
2019-02-01	35445755002	1.10 ppb
2019-02-01	35445755003	0.680 ppb
2019-02-01	35445755004	1.30 ppb
2019-05-01	35465408001	ND
2019-05-01	35465408002	0.680 ppb
2019-05-01	35465408003	ND
2019-05-01	35465408004	0.710 ppb
2019-05-01	35465408001	ND
2019-05-01	35465408002	0.680 ppb
2019-05-01	35465408003	ND
2019-05-01	35465408004	0.710 ppb
2019-08-19	35493980001	0.900 ppb
2019-08-19	35493980002	0.930 ppb
2019-08-19	35493980003	ND
2019-08-19	35493980004	0.960 ppb
2019-08-19	35493980001	0.900 ppb
2019-08-19	35493980002	0.930 ppb
2019-08-19	35493980003	ND
2019-08-19	35493980004	0.960 ppb
2019-11-05	35510875001	0.740 ppb
2019-11-05	35510875002	0.960 ppb
2019-11-05	35510875003	0.620 ppb
2019-11-05	35510875004	1.10 ppb
2019-11-05	35510875001	0.740 ppb
2019-11-05	35510875002	0.960 ppb
2019-11-05	35510875003	0.620 ppb
2019-11-05	35510875004	1.10 ppb