Dibromochloromethane

Artesian Water Company

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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

368

Samples

Samples exceeding legal limit (MCL)

125

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	0.359 ppb	80	14	ND - 4.08 ppb
2015	0.555 ppb	71	21	ND - 3.90 ppb
2016	0.613 ppb	77	29	ND - 3.60 ppb
2017	0.404 ppb	69	30	ND - 1.60 ppb
2018	0.317 ppb	39	14	ND - 1.90 ppb
2019	0.847 ppb	32	17	ND - 4.10 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 dibromochloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as 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
2014-01-06	L4892637-1	ND
2014-01-06	L4892639-1	ND
2014-01-06	L4892644-1	ND
2014-02-05	L4935367-1	ND
2014-02-05	L4935370-1	ND
2014-02-07	L4935658-1	ND
2014-02-07	L4935658-2	ND
2014-02-07	L4935661-1TTHM	ND
2014-02-07	L4935661-2TTHM	ND
2014-02-07	L4935661-3TTHM	ND
2014-02-07	L4935661-5TTHM	ND
2014-02-07	L4935661-6TTHM	ND
2014-02-07	L4935661-7TTHM	ND
2014-02-07	L4935661-8TTHM	ND
2014-02-07	LL4935661-4TTHM	ND
2014-02-18	L4768478-VOC	ND
2014-02-20	L4768585-VOC	ND
2014-02-20	L4799695-VOC	ND
2014-02-20	L4799863-1 VOC	ND
2014-02-25	L4805909-1 VOC	ND
2014-02-27	L4805818-VOC	ND
2014-02-27	L4830599-1 VOC	ND
2014-02-27	L4830758-VOC	ND
2014-02-27	L4836771-VOC	ND
2014-03-04	L4967359-1	ND
2014-03-04	L4967359-2	ND
2014-03-04	L4967360-1VOC	ND
2014-03-20	L4836863-1 VOC	ND
2014-03-20	L4949104-1	ND
2014-03-24	L4949106-1-VOC	ND
2014-03-24	L4949108-VOC	ND
2014-03-24	L4949110-VOC	ND
2014-03-24	L4949113-VOC	ND
2014-04-01	L4991785-1	ND
2014-04-01	L4991785-2	ND
2014-04-03	L5006062-1	1.36 ppb
2014-04-04	L5006551-1	ND
2014-05-01	L5030569-1	ND
2014-05-07	L5050389-1 VOC	ND
2014-05-13	L5055104-1-TTHM	ND
2014-05-13	L5055104-2-TTHM	ND
2014-05-13	L5055104-3-TTHM	ND
2014-05-13	L5055104-4-TTHM	ND
2014-05-13	L5055104-5	ND
2014-05-13	L5055104-6	ND
2014-05-13	L5055104-7-TTHM	1.96 ppb
2014-05-13	L5055104-8-TTHM	1.16 ppb
2014-05-19	L5062269-1	ND
2014-05-19	L5062269-2	ND
2014-05-30	L5959119-1-VOC	ND
2014-07-03	L5144791-1 VOC	1.19 ppb
2014-08-04	L5193431-1	ND
2014-08-25	L5212447-1-TTHM	2.49 ppb
2014-08-25	L5212447-2-TTHM	ND
2014-08-25	L5212447-3-TTHM	3.96 ppb
2014-08-25	L5212447-4-TTHM	3.69 ppb
2014-08-25	L5212447-5-TTHM	4.08 ppb
2014-08-25	L5212447-6-TTHM	1.12 ppb
2014-08-25	L5212447-7	1.08 ppb
2014-08-25	L5212447-8-TTHM	2.07 ppb
2014-09-02	L5231075-1	ND
2014-09-02	L5231075-2	ND
2014-09-03	L5235055-1VOC	ND
2014-09-03	L5235055-2-VOC	ND
2014-10-03	L5274679-1	1.23 ppb
2014-11-04	L5314263-1 THHM	ND
2014-11-04	L5314263-2 TTHM	1.95 ppb
2014-11-04	L5314263-3 TTHM	ND
2014-11-04	L5314263-4 TTHM	ND
2014-11-04	L5314263-5 TTHM	ND
2014-11-04	L5314263-6 TTHM	ND
2014-11-04	L5314263-7 TTHM	ND
2014-11-04	L5314263-8 TTHM	1.41 ppb
2014-11-04	L5314270-1	ND
2014-11-04	L5314270-2	ND
2014-11-05	L5315635-1-VOC	ND
2014-11-05	L5315635-2-VOC	ND
2014-12-15	L5359596-1-VOC	ND
2014-12-15	L5359597-1-VOC	ND
2014-12-15	L5359597-2-VOC	ND
2015-01-06	L5393622-1	ND
2015-01-09	L5398026-1 VOC	ND
2015-01-26	L5242398-1 VOC	0.760 ppb
2015-01-26	L5242399-1	ND
2015-01-26	L5242404-1 VOC	ND
2015-01-29	L524205-1 VOC	ND
2015-01-29	L5242406-1 VOC	ND
2015-01-29	L5242407-1-VOC	ND
2015-01-29	L5242895-1-VOC	1.07 ppb
2015-01-30	L5242896-1 VOC	ND
2015-01-30	L5250627-1 VOC	0.930 ppb
2015-01-30	L5250713-1 VOC	1.000 ppb
2015-02-06	L5444377-1-TTHM	ND
2015-02-06	L5444377-2-TTHM	ND
2015-02-06	L5444377-3-TTHM	ND
2015-02-06	L5444377-4-TTHM	ND
2015-02-06	L5444377-5-TTHM	ND
2015-02-06	L5444377-6-TTHM	ND
2015-02-06	L5444377-7-TTHM	ND
2015-02-06	L5444377-8-TTHM	ND
2015-02-26	L5286929-1 VOC	ND
2015-03-02	L5287047-1-VOC	ND
2015-03-02	L5293036-1 VOC	ND
2015-03-02	L5293104-1-VOC	ND
2015-03-31	L5511077-1	ND
2015-04-01	L5513705-1-VOC	1.22 ppb
2015-04-15	L5536821-1-VOC	ND
2015-04-15	L5537277-1 VOC	ND
2015-05-08	L5580453-1 TTHM	ND
2015-05-08	L5580453-2 TTHM	ND
2015-05-08	L5580453-3 TTHM	ND
2015-05-08	L5580453-4 TTHM	ND
2015-05-08	L5580453-5 TTHM	ND
2015-05-08	L5580453-6 TTHM	ND
2015-05-08	L5580453-7 TTHM	ND
2015-05-08	L5580453-8 TTHM	1.19 ppb
2015-06-01	L5611916-1	ND
2015-06-01	L5611916-2	ND
2015-06-04	L5628778-1	ND
2015-06-22	L5661471-1	ND
2015-07-01	L5676946-1	0.530 ppb
2015-07-06	L5692593-1	ND
2015-08-25	L5778582-1 TTHM	2.79 ppb
2015-08-25	L5778582-2 TTHM	1.33 ppb
2015-08-25	L5778582-3 TTHM	3.71 ppb
2015-08-25	L5778582-4 TTHM	3.63 ppb
2015-08-25	L5778582-5 TTHM	3.68 ppb
2015-08-25	L5778582-6 TTHM	3.90 ppb
2015-08-25	L5778582-7 TTHM	3.50 ppb
2015-08-25	L5778582-8 TTHM	2.84 ppb
2015-09-01	L5800237-1	ND
2015-09-01	L5800237-2	ND
2015-09-02	L5802388-1	ND
2015-09-02	L5802391-1	ND
2015-09-23	L5534590-1 VOC	ND
2015-10-01	L5835730-1 VOC	ND
2015-10-02	L5836565-1 VOC	ND
2015-10-02	L5836566-1 VOC	ND
2015-10-07	L5853905-1 VOC	0.730 ppb
2015-11-02	L5899917-1	ND
2015-11-02	L5899917-2	ND
2015-11-04	L5901720-1 TTHM	1.05 ppb
2015-11-04	L5901720-2 TTHM	1.61 ppb
2015-11-04	L5901720-3 TTHM	1.03 ppb
2015-11-04	L5901720-4 TTHM	1.07 ppb
2015-11-04	L5901720-5 TTHM	ND
2015-11-04	L5901720-7 TTHM	ND
2015-11-04	L5901720-8 TTHM	1.83 ppb
2015-12-10	L5590066-1 VOC	ND
2015-12-10	L5956173-1	ND
2015-12-10	L5956173-2	ND
2016-01-04	L5988545-1	ND
2016-01-04	L5988546-1	ND
2016-01-04	L5988546-2	ND
2016-01-04	L5988547-1	1.30 ppb
2016-01-05	L6006215-1	ND
2016-01-05	L6006223-1	ND
2016-01-15	L5762486-1 VOC	ND
2016-01-15	L5820919-1 VOC	ND
2016-01-15	L5863869-1 VOC	ND
2016-01-29	L6019360-1 VOC	ND
2016-01-29	L6019361-1 VOC	ND
2016-01-29	L6019362-1 VOC	ND
2016-02-01	L6053158-1	ND
2016-02-01	L6053158-2	ND
2016-02-11	L6067763-1 TTHM	ND
2016-02-11	L6067763-2 TTHM	ND
2016-02-11	L6067763-3 TTHM	ND
2016-02-11	L6067763-4 TTHM	ND
2016-02-11	L6067763-5 TTHM	ND
2016-02-11	L6067763-6 TTHM	ND
2016-02-11	L6067763-7 TTHM	ND
2016-02-11	L6067763-8 TTHM	ND
2016-02-17	L6019363-1 VOC	ND
2016-02-17	L6019364-1 VOC	ND
2016-02-17	L6019365-1 VOC	ND
2016-02-23	L6019366-1 VOC	0.500 ppb
2016-02-23	L6019367-1 VOC	ND
2016-02-23	L6019368-1 VOC	ND
2016-02-23	L6019369-1 VOC	ND
2016-02-23	L6019370- VOC	ND
2016-03-28	L6142373-1 VOC	ND
2016-04-04	L6166403-1 VOC	2.30 ppb
2016-04-07	L6170166-1 VOC	ND
2016-05-06	L6240911-1 TTHM	0.900 ppb
2016-05-06	L6240911-2 TTHM	0.500 ppb
2016-05-06	L6240911-3 TTHM	0.700 ppb
2016-05-06	L6240911-4 TTHM	1.10 ppb
2016-05-06	L6240911-5 TTHM	1.000 ppb
2016-05-06	L6240911-6 TTHM	0.900 ppb
2016-05-06	L6240911-7 TTHM	0.600 ppb
2016-05-06	L6240911-8 TTHM	0.700 ppb
2016-05-20	L6019372-1 VOC	ND
2016-06-06	L6019374-1 VOC	ND
2016-06-06	L6302168-1	ND
2016-06-10	L6307130-1	ND
2016-06-16	L6319857-1	ND
2016-06-16	L6319857-2	ND
2016-06-21	L6326398-1	ND
2016-07-06	L6359964-1	ND
2016-07-08	L6361949-1	0.900 ppb
2016-07-11	L6363789-1	ND
2016-07-11	L6363789-2 VOC	ND
2016-07-11	L6363790-1	ND
2016-07-11	L6363793-1	ND
2016-08-05	L6390073-1 VOC	ND
2016-08-16	L6422748-1 TTHM	3.40 ppb
2016-08-16	L6422748-2 TTHM	2.90 ppb
2016-08-16	L6422748-3 TTHM	2.90 ppb
2016-08-16	L6422748-4 TTHM	2.80 ppb
2016-08-16	L6422748-5 TTHM	3.30 ppb
2016-08-16	L6422748-6 TTHM	3.60 ppb
2016-08-16	L6422748-7 TTHM	2.80 ppb
2016-08-16	L6422748-8 TTHM	3.30 ppb
2016-09-09	L6461769-1	ND
2016-10-04	L6499891-1	ND
2016-10-04	L6499893-1	1.40 ppb
2016-10-05	L6502154-1	ND
2016-10-05	L6502181-1	ND
2016-10-05	L6502183-1	ND
2016-11-09	L6547484-1 TTHM	0.900 ppb
2016-11-09	L6547484-2 TTHM	1.40 ppb
2016-11-09	L6547484-3 TTHM	0.900 ppb
2016-11-09	L6547484-4 TTHM	0.800 ppb
2016-11-09	L6547484-5 TTHM	0.800 ppb
2016-11-09	L6547484-6 TTHM	0.800 ppb
2016-11-09	L6547484-7 TTHM	0.800 ppb
2016-11-09	L6547484-8 TTHM	3.00 ppb
2017-01-04	L6630039-1	ND
2017-01-04	L6630041-1	ND
2017-01-06	L6631632-1	ND
2017-01-18	L6547052-1 VOC	ND
2017-01-20	L6469070-1 VOC	ND
2017-01-20	L6469144-1 VOC	ND
2017-01-23	L6485710-1VOC	ND
2017-01-23	L6547102-1 VOC	ND
2017-01-23	L6553141-1 VOC	ND
2017-01-25	L6476340-1 VOC	ND
2017-01-25	L6476416-1 VOC	ND
2017-01-25	L6476488-1 VOC	ND
2017-01-25	L6476525-1 VOC	ND
2017-01-31	L6371963-1 VOC	0.500 ppb
2017-01-31	L6372370-1 VOC	1.10 ppb
2017-01-31	L6378581-1 VOC	ND
2017-02-13	L6677174-1 TTHM	0.500 ppb
2017-02-13	L6677174-2 TTHM	0.500 ppb
2017-02-13	L6677174-3 TTHM	0.600 ppb
2017-02-13	L6677174-4 TTHM	0.900 ppb
2017-02-13	L6677174-5 TTHM	1.000 ppb
2017-02-13	L6677174-6 TTHM	0.500 ppb
2017-02-13	L6677174-7 TTHM	0.500 ppb
2017-02-13	L6677174-8 TTHM	1.60 ppb
2017-03-06	L6485639-1 VOC	0.500 ppb
2017-03-09	L6568580-1 VOC	ND
2017-04-04	L6752338-1 VOC	1.60 ppb
2017-04-05	L6753806-1 VOC	ND
2017-04-05	L6753806-2	ND
2017-04-06	L6754970-1 VOC	ND
2017-04-13	L6763126-1 524	ND
2017-05-03	L6791948-1 VOC	1.40 ppb
2017-05-08	L6797859-5 TTHM	ND
2017-05-08	L6797869-1 TTHM	0.500 ppb
2017-05-08	L6797869-2 TTHM	ND
2017-05-08	L6797869-3 TTHM	ND
2017-05-08	L6797869-4 TTHM	ND
2017-05-08	L6797869-6 TTHM	ND
2017-05-08	L6797869-7 TTHM	ND
2017-05-08	L6797869-8 TTHM	1.20 ppb
2017-06-13	L6851464-1	0.900 ppb
2017-07-06	L6895433-1 VOC	ND
2017-07-10	L6899909-1	ND
2017-07-12	L6903562-1	0.800 ppb
2017-07-14	L6904370-1	ND
2017-08-04	L6932965-1	1.20 ppb
2017-08-10	L6934266-1 TTHM	0.600 ppb
2017-08-10	L6934266-2 TTHM	ND
2017-08-10	L6934266-3 TTHM	1.000 ppb
2017-08-10	L6934266-4 TTHM	1.000 ppb
2017-08-10	L6934266-5 TTHM	1.000 ppb
2017-08-10	L6934266-6 TTHM	0.900 ppb
2017-08-10	L6934266-7 TTHM	1.000 ppb
2017-08-10	L6934266-8 TTHM	0.900 ppb
2017-09-13	L6950001-1	0.700 ppb
2017-10-03	L6957608-1	ND
2017-10-03	L6957609-1	1.60 ppb
2017-10-10	L6959282-1	ND
2017-10-10	L6959284-1	ND
2017-11-07	L6968999-1	1.60 ppb
2017-11-21	L6973324-1 TTHM	ND
2017-11-21	L6973324-2 TTHM	ND
2017-11-21	L6973324-3 TTHM	ND
2017-11-21	L6973324-4 TTHM	ND
2017-11-21	L6973324-5 TTHM	ND
2017-11-21	L6973324-6 TTHM	ND
2017-11-21	L6973324-7 TTHM	ND
2017-11-21	L6973324-8 TTHM	0.900 ppb
2017-12-06	7114325-01 VOC	0.850 ppb
2018-01-05	8011810-01	ND
2018-01-05	8011820-01	0.560 ppb
2018-01-10	8011813-01	ND
2018-01-10	8011818-01	ND
2018-01-26	8014291-01 VOC	ND
2018-01-26	8014295-01 VOC	ND
2018-02-09	8021657-01 TTHM	ND
2018-02-09	8021657-02 TTHM	ND
2018-02-09	8021657-03 TTHM	0.500 ppb
2018-02-09	8021657-04 TTHM	ND
2018-02-09	8021657-05 TTHM	0.500 ppb
2018-02-09	8021657-06 TTHM	ND
2018-02-09	8021657-07 TTHM	0.500 ppb
2018-02-09	8021657-08 TTHM	1.70 ppb
2018-05-07	8051472-01 TTHM	1.40 ppb
2018-05-07	8051472-02 TTHM	ND
2018-05-07	8051472-03 TTHM	0.500 ppb
2018-05-07	8051472-04 TTHM	1.20 ppb
2018-05-07	8051472-05 TTHM	0.500 ppb
2018-05-07	8051472-06 TTHM	ND
2018-05-07	8051472-07 TTHM	0.500 ppb
2018-05-07	8051472-08 TTHM	0.600 ppb
2018-06-12	8061422-01	1.90 ppb
2018-08-07	8076276-01 TTHM	ND
2018-08-07	8076276-02 TTHM	ND
2018-08-07	8076276-03 TTHM	ND
2018-08-07	8076276-04 TTHM	ND
2018-08-07	8076276-05 TTHM	ND
2018-08-07	8076276-06 TTHM	0.600 ppb
2018-08-07	8076276-07 TTHM	ND
2018-08-07	8076276-08 TTHM	ND
2018-11-09	8111540-01 TTHM	ND
2018-11-09	8111540-02 TTHM	ND
2018-11-09	8111540-03 TTHM	ND
2018-11-09	8111540-04 TTHM	ND
2018-11-09	8111540-05 TTHM	ND
2018-11-09	8111540-06 TTHM	ND
2018-11-09	8111540-07 TTHM	ND
2018-11-09	8111540-08 TTHM	1.40 ppb
2019-02-07	9021338-01 TTHM	ND
2019-02-07	9021338-02 TTHM	ND
2019-02-07	9021338-03 TTHM	ND
2019-02-07	9021338-04 TTHM	ND
2019-02-07	9021338-05 TTHM	ND
2019-02-07	9021338-06 TTHM	ND
2019-02-07	9021338-07 TTHM	ND
2019-02-07	9021338-08 TTHM	ND
2019-05-10	9045759-01 TTHM	ND
2019-05-10	9045759-02 TTHM	ND
2019-05-10	9045759-03 TTHM	ND
2019-05-10	9045759-04 TTHM	ND
2019-05-10	9045759-05 TTHM	ND
2019-05-10	9045759-06 TTHM	ND
2019-05-10	9045759-07 TTHM	ND
2019-05-10	9045759-08 TTHM	1.60 ppb
2019-08-09	9076801-01 TTHM	2.10 ppb
2019-08-09	9076801-02 TTHM	2.20 ppb
2019-08-09	9076801-03 TTHM	2.40 ppb
2019-08-09	9076801-04 TTHM	2.20 ppb
2019-08-09	9076801-05 TTHM	2.00 ppb
2019-08-09	9076801-06 TTHM	0.600 ppb
2019-08-09	9076801-07 TTHM	1.50 ppb
2019-08-09	9076801-08 TTHM	1.90 ppb
2019-11-26	9105731-01 TTHM	0.600 ppb
2019-11-26	9105731-02 TTHM	0.700 ppb
2019-11-26	9105731-03 TTHM	0.700 ppb
2019-11-26	9105731-04 TTHM	0.700 ppb
2019-11-26	9105731-05 TTHM	0.600 ppb
2019-11-26	9105731-06 TTHM	0.700 ppb
2019-11-26	9105731-07 TTHM	2.50 ppb
2019-11-26	9105731-08 TTHM	4.10 ppb