Bromodichloromethane
Aquarion Water Company of Connecticut - Stamford
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 | 10.9 ppb | 34 | 34 | 4.00 ppb - 22.0 ppb |
2015 | 9.51 ppb | 34 | 34 | 2.50 ppb - 14.0 ppb |
2016 | 12.6 ppb | 34 | 33 | ND - 22.0 ppb |
2017 | 11.9 ppb | 34 | 33 | ND - 18.0 ppb |
2018 | 10.7 ppb | 33 | 33 | 5.00 ppb - 17.0 ppb |
2019 | 10.2 ppb | 33 | 33 | 4.00 ppb - 15.0 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 |
---|---|---|
2014-01-07 | 201400283-VOC1 | 4.00 ppb |
2014-02-03 | 201401656-DBP | 9.00 ppb |
2014-02-03 | 201401658-DBP | 12.0 ppb |
2014-02-03 | 201401659-DBP | 10.00 ppb |
2014-02-03 | 201401660-DBP | 11.0 ppb |
2014-02-03 | 201401661-DBP | 11.0 ppb |
2014-02-03 | 201401663-DBP | 7.00 ppb |
2014-02-03 | 201401664-DBP | 9.00 ppb |
2014-02-03 | 201401665-DBP | 8.00 ppb |
2014-05-05 | 201406133-DBP | 10.00 ppb |
2014-05-05 | 201406137-DBP | 14.0 ppb |
2014-05-05 | 201406138-DBP | 15.0 ppb |
2014-05-05 | 201406139-DBP | 12.0 ppb |
2014-05-05 | 201406140-DBP | 22.0 ppb |
2014-05-05 | 201406142-DBP | 9.00 ppb |
2014-05-05 | 201406143-DBP | 12.0 ppb |
2014-05-05 | 201406144-DBP | 9.00 ppb |
2014-05-05 | 201406147-VOC1 | 4.40 ppb |
2014-08-04 | 201411021-DBP | 13.0 ppb |
2014-08-04 | 201411025-DBP | 16.0 ppb |
2014-08-04 | 201411026-DBP | 16.0 ppb |
2014-08-04 | 201411027-DBP | 15.0 ppb |
2014-08-04 | 201411028-DBP | 10.00 ppb |
2014-08-04 | 201411030-DBP | 12.0 ppb |
2014-08-04 | 201411031-DBP | 12.0 ppb |
2014-08-04 | 201411032-DBP | 12.0 ppb |
2014-11-03 | 201416713-DBP | 9.00 ppb |
2014-11-03 | 201416717-DBP | 12.0 ppb |
2014-11-03 | 201416718-DBP | 14.0 ppb |
2014-11-03 | 201416719-DBP | 13.0 ppb |
2014-11-03 | 201416720-DBP | 6.00 ppb |
2014-11-03 | 201416722-DBP | 7.00 ppb |
2014-11-03 | 201416723-DBP | 7.00 ppb |
2014-11-03 | 201416724-DBP | 7.00 ppb |
2015-01-06 | 201500351-VOC1 | 2.50 ppb |
2015-02-03 | 201501492-DBP | 7.00 ppb |
2015-02-03 | 201501494-DBP | 11.0 ppb |
2015-02-03 | 201501496-DBP | 11.0 ppb |
2015-02-03 | 201501495-DBP | 12.0 ppb |
2015-02-03 | 201501497-DBP | 8.00 ppb |
2015-02-03 | 201501501-DBP | 8.00 ppb |
2015-02-03 | 201501499-DBP | 7.00 ppb |
2015-02-03 | 201501500-DBP | 8.00 ppb |
2015-05-04 | 201505561-DBP | 9.00 ppb |
2015-05-04 | 201505562-DBP | 9.00 ppb |
2015-05-04 | 201505567-DBP | 6.00 ppb |
2015-05-04 | 201505563-DBP | 10.00 ppb |
2015-05-04 | 201505566-DBP | 6.00 ppb |
2015-05-04 | 201505564-DBP | 6.00 ppb |
2015-05-04 | 201505568-DBP | 6.00 ppb |
2015-05-04 | 201505558-DBP | 6.00 ppb |
2015-08-03 | 201510460-DBP | 11.0 ppb |
2015-08-03 | 201510455-DBP | 12.0 ppb |
2015-08-03 | 201510459-DBP | 11.0 ppb |
2015-08-03 | 201510456-DBP | 9.00 ppb |
2015-08-03 | 201510454-DBP | 14.0 ppb |
2015-08-03 | 201510450-DBP | 12.0 ppb |
2015-08-03 | 201510453-DBP | 14.0 ppb |
2015-08-03 | 201510458-DBP | 11.0 ppb |
2015-08-03 | 201510463-VOC1 | 8.00 ppb |
2015-11-02 | 201515684-DBP | 9.00 ppb |
2015-11-02 | 201515681-DBP | 14.0 ppb |
2015-11-02 | 201515680-DBP | 14.0 ppb |
2015-11-02 | 201515678-DBP | 12.0 ppb |
2015-11-02 | 201515679-DBP | 14.0 ppb |
2015-11-02 | 201515682-DBP | 8.00 ppb |
2015-11-02 | 201515686-DBP | 10.00 ppb |
2015-11-02 | 201515685-DBP | 8.00 ppb |
2016-01-11 | 201600500-VOC1 | 5.90 ppb |
2016-02-01 | 201601467-DBP | 6.00 ppb |
2016-02-01 | 201601465-DBP | 14.0 ppb |
2016-02-01 | 201601466-DBP | 10.00 ppb |
2016-02-01 | 201601463-DBP | 10.00 ppb |
2016-02-01 | 201601471-DBP | 10.00 ppb |
2016-02-01 | 201601469-DBP | 7.00 ppb |
2016-02-01 | 201601470-DBP | 8.00 ppb |
2016-02-04 | 201601731-DBP | 13.0 ppb |
2016-05-02 | 201605495-DBP | 7.00 ppb |
2016-05-02 | 201605489-DBP | 11.0 ppb |
2016-05-02 | 201605490-DBP | 13.0 ppb |
2016-05-02 | 201605486-DBP | 9.00 ppb |
2016-05-02 | 201605496-DBP | 8.00 ppb |
2016-05-02 | 201605494-DBP | 7.00 ppb |
2016-05-02 | 201605491-DBP | 10.00 ppb |
2016-05-02 | 201605492-DBP | 7.00 ppb |
2016-08-01 | 201609895-DBP | 15.0 ppb |
2016-08-01 | 201609889-DBP | 20.0 ppb |
2016-08-01 | 201609890-DBP | 19.0 ppb |
2016-08-01 | 201609891-DBP | 17.0 ppb |
2016-08-01 | 201609886-DBP | 17.0 ppb |
2016-08-01 | 201609896-DBP | 20.0 ppb |
2016-08-01 | 201609894-DBP | 16.0 ppb |
2016-08-01 | 201609892-DBP | 14.0 ppb |
2016-10-31 | 201615141-VOC1 | ND |
2016-11-01 | 201615268-DBP | 19.0 ppb |
2016-11-01 | 201615276-DBP | 17.0 ppb |
2016-11-01 | 201615274-DBP | 15.0 ppb |
2016-11-01 | 201615272-DBP | 12.0 ppb |
2016-11-01 | 201615269-DBP | 19.0 ppb |
2016-11-01 | 201615270-DBP | 22.0 ppb |
2016-11-01 | 201615271-DBP | 15.0 ppb |
2016-11-01 | 201615275-DBP | 16.0 ppb |
2017-01-17 | 201701124-VOC1 | 7.80 ppb |
2017-02-01 | 201701794-VOC1 | ND |
2017-02-06 | 201702016-DBP | 9.00 ppb |
2017-02-06 | 201702012-DBP | 11.0 ppb |
2017-02-06 | 201702010-DBP | 10.00 ppb |
2017-02-06 | 201702011-DBP | 12.0 ppb |
2017-02-06 | 201702013-DBP | 7.00 ppb |
2017-02-06 | 201702009-DBP | 10.00 ppb |
2017-02-06 | 201702017-DBP | 9.00 ppb |
2017-02-06 | 201702015-DBP | 8.00 ppb |
2017-05-01 | 201706259-DBP | 13.0 ppb |
2017-05-01 | 201706261-DBP | 13.0 ppb |
2017-05-01 | 201706264-DBP | 11.0 ppb |
2017-05-01 | 201706262-DBP | 11.0 ppb |
2017-05-01 | 201706269-DBP | 10.00 ppb |
2017-05-01 | 201706258-DBP | 11.0 ppb |
2017-05-01 | 201706266-DBP | 10.00 ppb |
2017-05-01 | 201706268-DBP | 8.00 ppb |
2017-08-07 | 201712190-DBP | 16.0 ppb |
2017-08-07 | 201712186-DBP | 17.0 ppb |
2017-08-07 | 201712187-DBP | 18.0 ppb |
2017-08-07 | 201712188-DBP | 16.0 ppb |
2017-08-07 | 201712194-DBP | 17.0 ppb |
2017-08-07 | 201712185-DBP | 16.0 ppb |
2017-08-07 | 201712191-DBP | 18.0 ppb |
2017-08-07 | 201712193-DBP | 17.0 ppb |
2017-11-07 | 201717528-DBP | 12.0 ppb |
2017-11-07 | 201717529-DBP | 12.0 ppb |
2017-11-07 | 201717524-DBP | 13.0 ppb |
2017-11-07 | 201717532-DBP | 13.0 ppb |
2017-11-07 | 201717530-DBP | 10.00 ppb |
2017-11-07 | 201717525-DBP | 14.0 ppb |
2017-11-07 | 201717527-DBP | 14.0 ppb |
2017-11-07 | 201717531-DBP | 11.0 ppb |
2018-01-02 | 201800021-VOC1 | 5.50 ppb |
2018-02-07 | 201801740-DBP | 8.00 ppb |
2018-02-07 | 201801741-DBP | 10.00 ppb |
2018-02-07 | 201801739-DBP | 8.00 ppb |
2018-02-08 | 201801818-DBP | 8.00 ppb |
2018-02-08 | 201801826-DBP | 12.0 ppb |
2018-02-08 | 201801822-DBP | 9.00 ppb |
2018-02-08 | 201801819-DBP | 10.00 ppb |
2018-02-08 | 201801824-DBP | 9.00 ppb |
2018-05-07 | 201806185-DBP | 12.0 ppb |
2018-05-07 | 201806180-DBP | 6.00 ppb |
2018-05-07 | 201806181-DBP | 7.00 ppb |
2018-05-07 | 201806182-DBP | 11.0 ppb |
2018-05-07 | 201806183-DBP | 10.00 ppb |
2018-05-07 | 201806179-DBP | 5.00 ppb |
2018-05-07 | 201806186-DBP | 13.0 ppb |
2018-05-07 | 201806184-DBP | 11.0 ppb |
2018-08-06 | 201811707-DBP | 16.0 ppb |
2018-08-06 | 201811701-DBP | 8.00 ppb |
2018-08-06 | 201811703-DBP | 8.00 ppb |
2018-08-06 | 201811708-DBP | 17.0 ppb |
2018-08-06 | 201811706-DBP | 17.0 ppb |
2018-08-06 | 201811704-DBP | 17.0 ppb |
2018-08-06 | 201811700-DBP | 7.00 ppb |
2018-08-06 | 201811705-DBP | 17.0 ppb |
2018-11-05 | 201817166-DBP | 15.0 ppb |
2018-11-05 | 201817168-DBP | 13.0 ppb |
2018-11-05 | 201817169-DBP | 14.0 ppb |
2018-11-05 | 201817161-DBP | 5.00 ppb |
2018-11-05 | 201817159-DBP | 7.00 ppb |
2018-11-05 | 201817162-DBP | 8.00 ppb |
2018-11-05 | 201817163-DBP | 16.0 ppb |
2018-11-05 | 201817165-DBP | 14.0 ppb |
2019-01-07 | 201900234-VOC1 | 7.10 ppb |
2019-02-04 | 201901624-DBP | 11.0 ppb |
2019-02-04 | 201901625-DBP | 14.0 ppb |
2019-02-04 | 201901621-DBP | 10.00 ppb |
2019-02-04 | 201901628-DBP | 9.00 ppb |
2019-02-04 | 201901626-DBP | 8.00 ppb |
2019-02-04 | 201901622-DBP | 13.0 ppb |
2019-02-04 | 201901623-DBP | 12.0 ppb |
2019-02-04 | 201901627-DBP | 10.00 ppb |
2019-05-07 | 201906277-DBP | 12.0 ppb |
2019-05-07 | 201906278-DBP | 15.0 ppb |
2019-05-07 | 201906274-DBP | 5.00 ppb |
2019-05-07 | 201906281-DBP | 11.0 ppb |
2019-05-07 | 201906279-DBP | 9.00 ppb |
2019-05-07 | 201906275-DBP | 7.00 ppb |
2019-05-07 | 201906276-DBP | 8.00 ppb |
2019-05-07 | 201906280-DBP | 13.0 ppb |
2019-08-05 | 201912243-DBP | 15.0 ppb |
2019-08-05 | 201912240-DBP | 13.0 ppb |
2019-08-05 | 201912241-DBP | 14.0 ppb |
2019-08-05 | 201912236-DBP | 6.00 ppb |
2019-08-05 | 201912244-DBP | 15.0 ppb |
2019-08-05 | 201912242-DBP | 14.0 ppb |
2019-08-05 | 201912237-DBP | 9.00 ppb |
2019-08-05 | 201912239-DBP | 9.00 ppb |
2019-11-04 | 201918111-DBP | 10.00 ppb |
2019-11-04 | 201918112-DBP | 8.00 ppb |
2019-11-04 | 201918106-DBP | 4.00 ppb |
2019-11-04 | 201918115-DBP | 11.0 ppb |
2019-11-04 | 201918113-DBP | 9.00 ppb |
2019-11-04 | 201918114-DBP | 10.00 ppb |
2019-11-04 | 201918107-DBP | 9.00 ppb |
2019-11-04 | 201918110-DBP | 8.00 ppb |