Bromochloroacetic acid

City of Tracy

Bromochloroacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Bromochloroacetic acid and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

MORE ABOUT THIS CONTAMINANT

197

Samples

Samples exceeding legal limit (MCL)

108

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	1.35 ppb	33	22	ND - 4.80 ppb
2015	1.93 ppb	32	24	ND - 5.30 ppb
2016	0.681 ppb	32	13	ND - 2.80 ppb
2017	0.731 ppb	36	17	ND - 2.60 ppb
2018	0.984 ppb	32	13	ND - 3.50 ppb
2019	2.02 ppb	32	19	ND - 6.90 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for bromochloroacetic 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
2014-01-27	9590-900-1049	1.60 ppb
2014-01-27	9590-901-0923	ND
2014-01-27	9590-902-0904	ND
2014-01-27	9590-903-1349	ND
2014-01-27	9590-904-1408	ND
2014-01-27	9590-905-1304	ND
2014-01-27	9590-906-1334	1.20 ppb
2014-01-27	9590-907-0946	ND
2014-04-07	9590-900-1058	1.40 ppb
2014-04-07	9590-901-1002	1.40 ppb
2014-04-07	9590-902-0945	1.50 ppb
2014-04-07	9590-903-1214	1.80 ppb
2014-04-07	9590-904-1253	1.50 ppb
2014-04-07	9590-905-1233	1.60 ppb
2014-04-07	9590-906-1038	1.80 ppb
2014-04-07	9590-907-1018	1.70 ppb
2014-07-23	9590-900-1339	2.10 ppb
2014-07-23	9590-901-1121	1.40 ppb
2014-07-23	9590-902-1101	1.20 ppb
2014-07-23	9590-903-1237	3.80 ppb
2014-07-23	9590-904-1306	ND
2014-07-23	9590-905-1145	1.30 ppb
2014-07-23	9590-906-1216	4.80 ppb
2014-07-23	9590-907-1430	3.30 ppb
2014-10-01	9590-032-0746	ND
2014-10-28	9590-900-1354	1.20 ppb
2014-10-28	9590-901-1257	ND
2014-10-28	9590-902-1238	ND
2014-10-28	9590-903-1433	1.70 ppb
2014-10-28	9590-904-1451	ND
2014-10-28	9590-905-1509	1.50 ppb
2014-10-28	9590-906-1416	3.00 ppb
2014-10-28	9590-907-1320	3.60 ppb
2015-01-21	9590-900-1058	ND
2015-01-21	9590-901-0910	ND
2015-01-21	9590-902-0850	ND
2015-01-21	9590-903-1132	ND
2015-01-21	9590-904-1222	ND
2015-01-21	9590-905-1151	ND
2015-01-21	9590-906-0937	1.10 ppb
2015-01-21	9590-907-0959	1.10 ppb
2015-04-21	9590-900-1325	1.40 ppb
2015-04-21	9590-901-0804	2.20 ppb
2015-04-21	9590-902-1215	1.20 ppb
2015-04-21	9590-903-1024	1.20 ppb
2015-04-21	9590-904-1142	1.10 ppb
2015-04-21	9590-905-1111	1.30 ppb
2015-04-21	9590-906-0912	1.10 ppb
2015-04-21	9590-907-0848	1.30 ppb
2015-07-16	9590-900-0856	4.50 ppb
2015-07-16	9590-901-0747	5.10 ppb
2015-07-16	9590-902-0728	1.60 ppb
2015-07-16	9590-903-0941	1.90 ppb
2015-07-16	9590-904-1002	1.80 ppb
2015-07-16	9590-905-1026	1.70 ppb
2015-07-16	9590-906-0923	3.80 ppb
2015-07-16	9590-907-0816	5.30 ppb
2015-10-08	9590-900-1027	4.80 ppb
2015-10-08	9590-901-0930	5.10 ppb
2015-10-08	9590-902-0906	ND
2015-10-08	9590-903-1243	ND
2015-10-08	9590-904-1302	1.80 ppb
2015-10-08	9590-905-1321	2.20 ppb
2015-10-08	9590-906-1050	4.50 ppb
2015-10-08	9590-907-0951	4.60 ppb
2016-01-27	9590-900-1109	ND
2016-01-27	9590-901-0830	ND
2016-01-27	9590-902-0806	ND
2016-01-27	9590-903-0941	ND
2016-01-27	9590-904-1027	ND
2016-01-27	9590-905-1001	ND
2016-01-27	9590-906-0919	ND
2016-01-27	9590-907-0853	ND
2016-04-20	9590-900-1110	1.60 ppb
2016-04-20	9590-901-0954	2.10 ppb
2016-04-20	9590-902-1307	1.000 ppb
2016-04-20	9590-903-1202	1.30 ppb
2016-04-20	9590-904-1240	ND
2016-04-20	9590-905-1221	ND
2016-04-20	9590-906-1041	1.20 ppb
2016-04-20	9590-907-1020	1.40 ppb
2016-07-11	9590-900-0920	2.20 ppb
2016-07-11	9590-901-0818	2.70 ppb
2016-07-11	9590-902-1140	ND
2016-07-11	9590-903-1034	ND
2016-07-11	9590-904-1112	ND
2016-07-11	9590-905-1050	ND
2016-07-11	9590-906-1012	1.50 ppb
2016-07-11	9590-907-0947	2.80 ppb
2016-10-05	9590-900-1024	ND
2016-10-05	9590-901-0830	1.70 ppb
2016-10-05	9590-902-0750	ND
2016-10-05	9590-903-1049	ND
2016-10-05	9590-904-1107	ND
2016-10-05	9590-905-1125	ND
2016-10-05	9590-906-0900	1.000 ppb
2016-10-05	9590-907-0948	1.30 ppb
2017-01-05	9590-900-0845	ND
2017-01-05	9590-901-0939	ND
2017-01-05	9590-902-0922	ND
2017-01-05	9590-903-1039	ND
2017-01-05	9590-904-1112	ND
2017-01-05	9590-905-1053	ND
2017-01-05	9590-906-1024	ND
2017-01-05	9590-907-1000	1.000 ppb
2017-04-04	9590-900-0935	ND
2017-04-04	9590-901-0853	ND
2017-04-04	9590-902-1256	1.20 ppb
2017-04-04	9590-903-1145	ND
2017-04-04	9590-904-1205	1.40 ppb
2017-04-04	9590-905-1232	1.40 ppb
2017-04-04	9590-906-1128	1.40 ppb
2017-04-04	9590-907-1111	1.20 ppb
2017-07-10	9590-900-0952	1.50 ppb
2017-07-10	9590-901-0914	1.30 ppb
2017-07-10	9590-902-0850	ND
2017-07-10	9590-903-1109	ND
2017-07-10	9590-904-1128	ND
2017-07-10	9590-905-1224	ND
2017-07-10	9590-906-1052	1.60 ppb
2017-07-10	9590-907-1032	1.60 ppb
2017-08-16	9590-900-1122	1.50 ppb
2017-08-16	9590-901-1242	1.60 ppb
2017-08-16	9590-906-1211	1.60 ppb
2017-08-16	9590-907-1151	2.60 ppb
2017-10-09	9590-900-1117	1.80 ppb
2017-10-09	9590-901-1159	ND
2017-10-09	9590-902-0811	ND
2017-10-09	9590-903-0939	ND
2017-10-09	9590-904-0858	ND
2017-10-09	9590-905-0839	ND
2017-10-09	9590-906-1002	1.60 ppb
2017-10-09	9590-907-1018	2.00 ppb
2018-01-22	9590-901-0933	1.20 ppb
2018-01-22	9590-902-0910	ND
2018-01-22	9590-903-1216	ND
2018-01-22	9590-904-1142	ND
2018-01-22	9590-905-1232	ND
2018-01-22	9590-906-1022	ND
2018-01-22	9590-907-1000	ND
2018-01-30	9590-900-1055	ND
2018-04-02	9590-900-0958	ND
2018-04-02	9590-901-0842	ND
2018-04-02	9590-902-0818	ND
2018-04-02	9590-903-1033	ND
2018-04-02	9590-904-1114	ND
2018-04-02	9590-905-1150	ND
2018-04-02	9590-906-0923	ND
2018-04-02	9590-907-0903	1.20 ppb
2018-07-09	9590-900-0832	3.50 ppb
2018-07-09	9590-901-1018	3.30 ppb
2018-07-09	9590-902-0951	ND
2018-07-09	9590-903-1004	2.20 ppb
2018-07-09	9590-904-1048	ND
2018-07-09	9590-905-1124	1.20 ppb
2018-07-09	9590-906-0916	2.60 ppb
2018-07-09	9590-907-0856	3.00 ppb
2018-10-10	9590-900-1020	3.00 ppb
2018-10-10	9590-901-0832	2.40 ppb
2018-10-10	9590-902-0817	ND
2018-10-10	9590-903-1144	2.70 ppb
2018-10-10	9590-904-1125	ND
2018-10-10	9590-905-1158	ND
2018-10-10	9590-906-0952	3.00 ppb
2018-10-10	9590-907-0920	2.20 ppb
2019-01-10	9590-900-1027	ND
2019-01-10	9590-901-0856	4.60 ppb
2019-01-10	9590-902-0837	ND
2019-01-10	9590-903-1209	2.60 ppb
2019-01-10	9590-904-1130	ND
2019-01-10	9590-905-1222	1.10 ppb
2019-01-10	9590-906-0957	5.80 ppb
2019-01-10	9590-907-0929	4.80 ppb
2019-04-01	9590-900-1019	2.10 ppb
2019-04-01	9590-901-0857	ND
2019-04-01	9590-902-0839	ND
2019-04-01	9590-903-0840	ND
2019-04-01	9590-904-1046	ND
2019-04-01	9590-905-0856	ND
2019-04-01	9590-906-0946	1.30 ppb
2019-04-01	9590-907-0926	1.20 ppb
2019-07-08	9590-900-0940	6.90 ppb
2019-07-08	9590-901-0801	4.50 ppb
2019-07-08	9590-902-0742	ND
2019-07-08	9590-903-1028	4.80 ppb
2019-07-08	9590-904-1010	ND
2019-07-08	9590-905-1044	2.20 ppb
2019-07-08	9590-906-0846	4.80 ppb
2019-07-08	9590-907-0825	4.10 ppb
2019-10-10	9590-901-1202	2.30 ppb
2019-10-10	9590-902-1136	ND
2019-10-10	9590-907-1232	2.00 ppb
2019-10-14	9590-900-0835	5.50 ppb
2019-10-14	9590-903-0943	1.60 ppb
2019-10-14	9590-904-0911	ND
2019-10-14	9590-905-1008	ND
2019-10-14	9590-906-1258	2.50 ppb