Bromoform

Artesian Water Company

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

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368

Samples

Samples exceeding legal limit (MCL)

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	0.0906 ppb	80	4	ND - 2.17 ppb
2015	0.0215 ppb	71	1	ND - 1.53 ppb
2016	0.0260 ppb	77	3	ND - 0.900 ppb
2017	ND	69	0	ND
2018	ND	39	0	ND
2019	0.0500 ppb	32	1	ND - 1.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform 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	ND
2014-04-04	L5006551-1	ND
2014-05-01	L5030569-1	ND
2014-05-07	L5050389-1 VOC	1.09 ppb
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	ND
2014-05-13	L5055104-8-TTHM	ND
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	ND
2014-08-04	L5193431-1	ND
2014-08-25	L5212447-1-TTHM	ND
2014-08-25	L5212447-2-TTHM	ND
2014-08-25	L5212447-3-TTHM	2.04 ppb
2014-08-25	L5212447-4-TTHM	1.95 ppb
2014-08-25	L5212447-5-TTHM	2.17 ppb
2014-08-25	L5212447-6-TTHM	ND
2014-08-25	L5212447-7	ND
2014-08-25	L5212447-8-TTHM	ND
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	ND
2014-11-04	L5314263-1 THHM	ND
2014-11-04	L5314263-2 TTHM	ND
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	ND
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	ND
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	ND
2015-01-30	L5242896-1 VOC	ND
2015-01-30	L5250627-1 VOC	ND
2015-01-30	L5250713-1 VOC	1.53 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	ND
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	ND
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	ND
2015-07-06	L5692593-1	ND
2015-08-25	L5778582-1 TTHM	ND
2015-08-25	L5778582-2 TTHM	ND
2015-08-25	L5778582-3 TTHM	ND
2015-08-25	L5778582-4 TTHM	ND
2015-08-25	L5778582-5 TTHM	ND
2015-08-25	L5778582-6 TTHM	ND
2015-08-25	L5778582-7 TTHM	ND
2015-08-25	L5778582-8 TTHM	ND
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	ND
2015-11-02	L5899917-1	ND
2015-11-02	L5899917-2	ND
2015-11-04	L5901720-1 TTHM	ND
2015-11-04	L5901720-2 TTHM	ND
2015-11-04	L5901720-3 TTHM	ND
2015-11-04	L5901720-4 TTHM	ND
2015-11-04	L5901720-5 TTHM	ND
2015-11-04	L5901720-7 TTHM	ND
2015-11-04	L5901720-8 TTHM	ND
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	ND
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	ND
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	0.500 ppb
2016-04-07	L6170166-1 VOC	ND
2016-05-06	L6240911-1 TTHM	ND
2016-05-06	L6240911-2 TTHM	ND
2016-05-06	L6240911-3 TTHM	ND
2016-05-06	L6240911-4 TTHM	ND
2016-05-06	L6240911-5 TTHM	ND
2016-05-06	L6240911-6 TTHM	ND
2016-05-06	L6240911-7 TTHM	ND
2016-05-06	L6240911-8 TTHM	ND
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	ND
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	0.900 ppb
2016-08-16	L6422748-2 TTHM	ND
2016-08-16	L6422748-3 TTHM	ND
2016-08-16	L6422748-4 TTHM	ND
2016-08-16	L6422748-5 TTHM	ND
2016-08-16	L6422748-6 TTHM	ND
2016-08-16	L6422748-7 TTHM	ND
2016-08-16	L6422748-8 TTHM	ND
2016-09-09	L6461769-1	ND
2016-10-04	L6499891-1	ND
2016-10-04	L6499893-1	ND
2016-10-05	L6502154-1	ND
2016-10-05	L6502181-1	ND
2016-10-05	L6502183-1	ND
2016-11-09	L6547484-1 TTHM	ND
2016-11-09	L6547484-2 TTHM	ND
2016-11-09	L6547484-3 TTHM	ND
2016-11-09	L6547484-4 TTHM	ND
2016-11-09	L6547484-5 TTHM	ND
2016-11-09	L6547484-6 TTHM	ND
2016-11-09	L6547484-7 TTHM	ND
2016-11-09	L6547484-8 TTHM	0.600 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	ND
2017-01-31	L6372370-1 VOC	ND
2017-01-31	L6378581-1 VOC	ND
2017-02-13	L6677174-1 TTHM	ND
2017-02-13	L6677174-2 TTHM	ND
2017-02-13	L6677174-3 TTHM	ND
2017-02-13	L6677174-4 TTHM	ND
2017-02-13	L6677174-5 TTHM	ND
2017-02-13	L6677174-6 TTHM	ND
2017-02-13	L6677174-7 TTHM	ND
2017-02-13	L6677174-8 TTHM	ND
2017-03-06	L6485639-1 VOC	ND
2017-03-09	L6568580-1 VOC	ND
2017-04-04	L6752338-1 VOC	ND
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	ND
2017-05-08	L6797859-5 TTHM	ND
2017-05-08	L6797869-1 TTHM	ND
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	ND
2017-06-13	L6851464-1	ND
2017-07-06	L6895433-1 VOC	ND
2017-07-10	L6899909-1	ND
2017-07-12	L6903562-1	ND
2017-07-14	L6904370-1	ND
2017-08-04	L6932965-1	ND
2017-08-10	L6934266-1 TTHM	ND
2017-08-10	L6934266-2 TTHM	ND
2017-08-10	L6934266-3 TTHM	ND
2017-08-10	L6934266-4 TTHM	ND
2017-08-10	L6934266-5 TTHM	ND
2017-08-10	L6934266-6 TTHM	ND
2017-08-10	L6934266-7 TTHM	ND
2017-08-10	L6934266-8 TTHM	ND
2017-09-13	L6950001-1	ND
2017-10-03	L6957608-1	ND
2017-10-03	L6957609-1	ND
2017-10-10	L6959282-1	ND
2017-10-10	L6959284-1	ND
2017-11-07	L6968999-1	ND
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	ND
2017-12-06	7114325-01 VOC	ND
2018-01-05	8011810-01	ND
2018-01-05	8011820-01	ND
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	ND
2018-02-09	8021657-04 TTHM	ND
2018-02-09	8021657-05 TTHM	ND
2018-02-09	8021657-06 TTHM	ND
2018-02-09	8021657-07 TTHM	ND
2018-02-09	8021657-08 TTHM	ND
2018-05-07	8051472-01 TTHM	ND
2018-05-07	8051472-02 TTHM	ND
2018-05-07	8051472-03 TTHM	ND
2018-05-07	8051472-04 TTHM	ND
2018-05-07	8051472-05 TTHM	ND
2018-05-07	8051472-06 TTHM	ND
2018-05-07	8051472-07 TTHM	ND
2018-05-07	8051472-08 TTHM	ND
2018-06-12	8061422-01	ND
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	ND
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	ND
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	ND
2019-08-09	9076801-01 TTHM	ND
2019-08-09	9076801-02 TTHM	ND
2019-08-09	9076801-03 TTHM	ND
2019-08-09	9076801-04 TTHM	ND
2019-08-09	9076801-05 TTHM	ND
2019-08-09	9076801-06 TTHM	ND
2019-08-09	9076801-07 TTHM	ND
2019-08-09	9076801-08 TTHM	ND
2019-11-26	9105731-01 TTHM	ND
2019-11-26	9105731-02 TTHM	ND
2019-11-26	9105731-03 TTHM	ND
2019-11-26	9105731-04 TTHM	ND
2019-11-26	9105731-05 TTHM	ND
2019-11-26	9105731-06 TTHM	ND
2019-11-26	9105731-07 TTHM	ND
2019-11-26	9105731-08 TTHM	1.60 ppb