Bromodichloromethane
High Bridge Water Department
Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.602 ppb | 14 | 8 | ND - 2.78 ppb |
2015 | 0.558 ppb | 14 | 8 | ND - 4.24 ppb |
2016 | 0.577 ppb | 14 | 8 | ND - 3.20 ppb |
2017 | 0.629 ppb | 14 | 10 | ND - 3.00 ppb |
2018 | 0.664 ppb | 14 | 8 | ND - 3.50 ppb |
2019 | 0.536 ppb | 14 | 10 | ND - 2.70 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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 |
---|---|---|
2014-02-20 | L4900506-2 | ND |
2014-02-28 | L4861729-1 | 0.490 ppb |
2014-03-21 | L4985465-1 | 0.0700 ppb |
2014-05-19 | L5010038-2 | ND |
2014-05-19 | L4975089-1 | 0.720 ppb |
2014-05-19 | L5010039-1 | 0.0700 ppb |
2014-08-15 | L5158834-2 | 2.78 ppb |
2014-08-15 | L5158834-1 | 2.62 ppb |
2014-08-18 | L5158836-1 | ND |
2014-08-18 | L5102185-1 | 0.840 ppb |
2014-08-18 | L5158835-2 | ND |
2014-10-17 | L5240332-1 | 0.840 ppb |
2014-11-21 | L5285034-2 | ND |
2014-11-21 | L5285035-1 | ND |
2015-02-27 | L5357581-1 | 0.610 ppb |
2015-02-27 | L5408650-1 | 0.0600 ppb |
2015-03-25 | L5408651-2 | ND |
2015-06-30 | L5540488-2 | ND |
2015-06-30 | L5490662-1 | 0.870 ppb |
2015-06-30 | L5540487-1 | ND |
2015-08-03 | L5711934-2 | 4.24 ppb |
2015-08-03 | L5711934-1 | 0.510 ppb |
2015-09-28 | L5711933-1 | 0.130 ppb |
2015-09-28 | L5640082-1 | 0.820 ppb |
2015-09-28 | L5711932-2 | ND |
2015-12-28 | L5863916-1 | ND |
2015-12-28 | L5863915-2 | ND |
2015-12-28 | L5809012-1 | 0.570 ppb |
2016-02-05 | L5969321-1 | 0.580 ppb |
2016-02-05 | L6016987-1 | ND |
2016-02-05 | L6016986-2 | ND |
2016-05-06 | L6131535-1 | 0.600 ppb |
2016-05-06 | L6178995-2 | ND |
2016-05-06 | L6178996-1 | 0.1000 ppb |
2016-08-08 | L6372198-1 | 2.70 ppb |
2016-08-08 | L6372198-2 | 3.20 ppb |
2016-08-31 | L6372197-1 | 0.1000 ppb |
2016-08-31 | L6372199-2 | ND |
2016-08-31 | L6317545-1 | 0.300 ppb |
2016-11-29 | L6509653-1 | ND |
2016-11-29 | L6509652-2 | ND |
2016-11-29 | L6468937-1 | 0.500 ppb |
2017-02-28 | L6635077-2 | ND |
2017-02-28 | L6599885-1 | 0.400 ppb |
2017-02-28 | L6635078-1 | 0.200 ppb |
2017-06-14 | L6722830-1 | 0.500 ppb |
2017-06-14 | L6762196-1 | 0.400 ppb |
2017-06-14 | L6762197-2 | ND |
2017-08-04 | L6903250-2 | 2.40 ppb |
2017-08-04 | L6903250-1 | 3.00 ppb |
2017-08-31 | L6903249-1 | 0.500 ppb |
2017-08-31 | L6903248-2 | ND |
2017-08-31 | L6857722-1 | 0.500 ppb |
2017-11-30 | L6960819-1 | 0.400 ppb |
2017-11-30 | L6951667-1 | 0.500 ppb |
2017-11-30 | L6960818-2 | ND |
2018-01-31 | 3864212 | ND |
2018-01-31 | 3864208 | ND |
2018-01-31 | 3864214 | ND |
2018-04-30 | L7016392-2 | ND |
2018-04-30 | L7009627-1 | 0.500 ppb |
2018-04-30 | L7016393-1 | 0.400 ppb |
2018-08-01 | L7050366-1 | 3.50 ppb |
2018-08-01 | L7050366-2 | 3.30 ppb |
2018-08-29 | L7050365-1 | 0.300 ppb |
2018-08-29 | L7050367-2 | ND |
2018-08-29 | L7041200-1 | 0.200 ppb |
2018-11-30 | L7071825-1 | 0.800 ppb |
2018-11-30 | L7077755-2 | ND |
2018-11-30 | L7077756-1 | 0.300 ppb |
2019-03-27 | L7099812-2 | ND |
2019-03-27 | L7099814-1 | 0.600 ppb |
2019-03-27 | L7099813-1 | 0.500 ppb |
2019-05-21 | L7116447-2 | ND |
2019-05-21 | L7116445-1 | 0.700 ppb |
2019-05-21 | L7116446-1 | 0.300 ppb |
2019-09-24 | L7144461-2 | ND |
2019-09-24 | L7144462-1 | 0.500 ppb |
2019-09-24 | L7144459-1 | 0.1000 ppb |
2019-11-21 | L7168134-1 | 0.700 ppb |
2019-11-21 | L7168132-1 | ND |
2019-11-21 | L7168133-1 | 0.1000 ppb |
2019-11-26 | L7144460-1 | 1.30 ppb |
2019-11-26 | L7144460-2 | 2.70 ppb |