Bromoform
City of Columbia
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 32 | 0 | ND |
2015 | 0.0413 ppb | 32 | 1 | ND - 1.32 ppb |
2016 | ND | 40 | 0 | ND |
2017 | ND | 48 | 0 | ND |
2018 | ND | 48 | 0 | ND |
2019 | ND | 48 | 0 | ND |
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 |
---|---|---|
2014-01-14 | 2140115-3 | ND |
2014-01-14 | 2140115-4 | ND |
2014-01-15 | 2140116-10 | ND |
2014-01-15 | 2140116-11 | ND |
2014-01-15 | 2140116-12 | ND |
2014-01-15 | 2140116-13 | ND |
2014-01-15 | 2140116-14 | ND |
2014-01-15 | 2140116-9 | ND |
2014-04-07 | 2140408-10 | ND |
2014-04-07 | 2140408-11 | ND |
2014-04-07 | 2140408-12 | ND |
2014-04-07 | 2140408-13 | ND |
2014-04-07 | 2140408-14 | ND |
2014-04-07 | 2140408-9 | ND |
2014-04-09 | 2140410-3 | ND |
2014-04-09 | 2140410-4 | ND |
2014-07-07 | 2140708-11 | ND |
2014-07-07 | 2140708-12 | ND |
2014-07-07 | 2140708-13 | ND |
2014-07-07 | 2140708-14 | ND |
2014-07-07 | 2140708-15 | ND |
2014-07-07 | 2140708-16 | ND |
2014-07-07 | 2140708-17 | ND |
2014-07-07 | 2140708-18 | ND |
2014-10-13 | 2141014-23 | ND |
2014-10-13 | 2141014-24 | ND |
2014-10-13 | 2141014-25 | ND |
2014-10-13 | 2141014-26 | ND |
2014-10-13 | 2141014-27 | ND |
2014-10-13 | 2141014-28 | ND |
2014-10-13 | 2141014-29 | ND |
2014-10-13 | 2141014-30 | ND |
2015-01-12 | 2150113-11 | ND |
2015-01-12 | 2150113-12 | ND |
2015-01-12 | 2150113-13 | ND |
2015-01-12 | 2150113-14 | ND |
2015-01-12 | 2150113-15 | ND |
2015-01-12 | 2150113-16 | ND |
2015-01-12 | 2150113-17 | ND |
2015-01-12 | 2150113-18 | ND |
2015-04-06 | 2150408-19 | ND |
2015-04-06 | 2150408-20 | ND |
2015-04-06 | 2150408-21 | ND |
2015-04-06 | 2150408-22 | 1.32 ppb |
2015-04-06 | 2150408-23 | ND |
2015-04-06 | 2150408-24 | ND |
2015-04-06 | 2150408-25 | ND |
2015-04-06 | 2150408-26 | ND |
2015-07-13 | 2150717-53 | ND |
2015-07-13 | 2150717-54 | ND |
2015-07-13 | 2150717-55 | ND |
2015-07-13 | 2150717-56 | ND |
2015-07-13 | 2150717-57 | ND |
2015-07-13 | 2150717-58 | ND |
2015-07-13 | 2150717-59 | ND |
2015-07-13 | 2150717-60 | ND |
2015-11-09 | 2151116-11 | ND |
2015-11-09 | 2151116-12 | ND |
2015-11-09 | 2151116-13 | ND |
2015-11-09 | 2151116-14 | ND |
2015-11-09 | 2151116-15 | ND |
2015-11-09 | 2151116-16 | ND |
2015-11-09 | 2151116-17 | ND |
2015-11-09 | 2151116-18 | ND |
2016-01-11 | 2160114-12 | ND |
2016-01-11 | 2160114-14 | ND |
2016-01-11 | 2160114-15 | ND |
2016-01-11 | 2160114-13 | ND |
2016-01-11 | 2160114-11 | ND |
2016-01-12 | 2160114-16 | ND |
2016-01-12 | 2160114-17 | ND |
2016-01-13 | 2160114-18 | ND |
2016-04-12 | 2160413-12 | ND |
2016-04-12 | 2160413-14 | ND |
2016-04-12 | 2160413-15 | ND |
2016-04-12 | 2160413-13 | ND |
2016-04-12 | 2160413-18 | ND |
2016-04-12 | 2160413-11 | ND |
2016-04-12 | 2160413-16 | ND |
2016-04-12 | 2160413-17 | ND |
2016-08-24 | 2160826-26 | ND |
2016-08-24 | 2160826-16 | ND |
2016-08-24 | 2160826-18 | ND |
2016-08-24 | 2160826-19 | ND |
2016-08-24 | 2160826-23 | ND |
2016-08-24 | 2160826-24 | ND |
2016-08-24 | 2160826-25 | ND |
2016-08-24 | 2160826-17 | ND |
2016-08-24 | 2160826-22 | ND |
2016-08-24 | 2160826-15 | ND |
2016-08-24 | 2160826-20 | ND |
2016-08-24 | 2160826-21 | ND |
2016-10-11 | 2161014-26 | ND |
2016-10-11 | 2161014-16 | ND |
2016-10-11 | 2161014-18 | ND |
2016-10-11 | 2161014-19 | ND |
2016-10-11 | 2161014-23 | ND |
2016-10-11 | 2161014-24 | ND |
2016-10-11 | 2161014-25 | ND |
2016-10-11 | 2161014-17 | ND |
2016-10-11 | 2161014-22 | ND |
2016-10-11 | 2161014-15 | ND |
2016-10-11 | 2161014-20 | ND |
2016-10-11 | 2161014-21 | ND |
2017-01-11 | 2170113-26 | ND |
2017-01-11 | 2170113-16 | ND |
2017-01-11 | 2170113-18 | ND |
2017-01-11 | 2170113-19 | ND |
2017-01-11 | 2170113-23 | ND |
2017-01-11 | 2170113-24 | ND |
2017-01-11 | 2170113-25 | ND |
2017-01-11 | 2170113-17 | ND |
2017-01-11 | 2170113-22 | ND |
2017-01-11 | 2170113-15 | ND |
2017-01-11 | 2170113-20 | ND |
2017-01-11 | 2170113-21 | ND |
2017-04-10 | 2170414-33 | ND |
2017-04-10 | 2170414-34 | ND |
2017-04-10 | 2170414-35 | ND |
2017-04-10 | 2170414-36 | ND |
2017-04-10 | 2170414-37 | ND |
2017-04-10 | 2170414-40 | ND |
2017-04-10 | 2170414-41 | ND |
2017-04-10 | 2170414-42 | ND |
2017-04-10 | 2170414-43 | ND |
2017-04-10 | 2170414-44 | ND |
2017-05-25 | 2170526-17 | ND |
2017-05-25 | 2170526-18 | ND |
2017-07-10 | 2170714-32 | ND |
2017-07-11 | 2170714-29 | ND |
2017-07-11 | 2170714-30 | ND |
2017-07-11 | 2170714-31 | ND |
2017-07-11 | 2170714-33 | ND |
2017-07-11 | 2170714-34 | ND |
2017-07-11 | 2170714-35 | ND |
2017-07-12 | 2170714-36 | ND |
2017-07-12 | 2170714-37 | ND |
2017-07-12 | 2170714-38 | ND |
2017-07-12 | 2170714-39 | ND |
2017-07-12 | 2170714-40 | ND |
2017-10-09 | 2171012-18 | ND |
2017-10-09 | 2171012-26 | ND |
2017-10-10 | 2171012-15 | ND |
2017-10-10 | 2171012-16 | ND |
2017-10-10 | 2171012-17 | ND |
2017-10-10 | 2171012-19 | ND |
2017-10-10 | 2171012-20 | ND |
2017-10-10 | 2171012-21 | ND |
2017-10-11 | 2171012-22 | ND |
2017-10-11 | 2171012-23 | ND |
2017-10-11 | 2171012-24 | ND |
2017-10-11 | 2171012-25 | ND |
2018-01-09 | 2180112-33 | ND |
2018-01-09 | 2180112-35 | ND |
2018-01-09 | 2180112-36 | ND |
2018-01-09 | 2180112-37 | ND |
2018-01-09 | 2180112-38 | ND |
2018-01-09 | 2180112-39 | ND |
2018-01-09 | 2180112-41 | ND |
2018-01-09 | 2180112-44 | ND |
2018-01-09 | 2180112-40 | ND |
2018-01-09 | 2180112-43 | ND |
2018-01-10 | 2180112-42 | ND |
2018-01-11 | 2180112-34 | ND |
2018-04-09 | 2180413-18 | ND |
2018-04-09 | 2180413-19 | ND |
2018-04-09 | 2180413-20 | ND |
2018-04-09 | 2180413-26 | ND |
2018-04-11 | 2180413-15 | ND |
2018-04-11 | 2180413-16 | ND |
2018-04-11 | 2180413-17 | ND |
2018-04-11 | 2180413-22 | ND |
2018-04-11 | 2180413-23 | ND |
2018-04-11 | 2180413-25 | ND |
2018-04-12 | 2180413-21 | ND |
2018-04-12 | 2180413-24 | ND |
2018-07-09 | 2180711-19 | ND |
2018-07-09 | 2180711-20 | ND |
2018-07-09 | 2180711-21 | ND |
2018-07-09 | 2180711-22 | ND |
2018-07-09 | 2180711-23 | ND |
2018-07-09 | 2180711-26 | ND |
2018-07-09 | 2180711-27 | ND |
2018-07-09 | 2180711-28 | ND |
2018-07-10 | 2180711-17 | ND |
2018-07-10 | 2180711-18 | ND |
2018-07-10 | 2180711-24 | ND |
2018-07-10 | 2180711-25 | ND |
2018-10-08 | 2181009-17 | ND |
2018-10-08 | 2181009-18 | ND |
2018-10-08 | 2181009-19 | ND |
2018-10-08 | 2181009-20 | ND |
2018-10-08 | 2181009-21 | ND |
2018-10-08 | 2181009-22 | ND |
2018-10-08 | 2181009-23 | ND |
2018-10-08 | 2181009-24 | ND |
2018-10-08 | 2181009-25 | ND |
2018-10-08 | 2181009-26 | ND |
2018-10-08 | 2181009-27 | ND |
2018-10-08 | 2181009-28 | ND |
2019-01-07 | 2190109-11 | ND |
2019-01-07 | 2190109-12 | ND |
2019-01-07 | 2190109-13 | ND |
2019-01-07 | 2190109-14 | ND |
2019-01-07 | 2190109-23 | ND |
2019-01-07 | 2190109-26 | ND |
2019-01-07 | 2190109-27 | ND |
2019-01-07 | 2190109-28 | ND |
2019-01-08 | 2190109-09 | ND |
2019-01-08 | 2190109-10 | ND |
2019-01-08 | 2190109-24 | ND |
2019-01-08 | 2190109-25 | ND |
2019-04-08 | 2190410-17 | ND |
2019-04-08 | 2190410-18 | ND |
2019-04-08 | 2190410-19 | ND |
2019-04-08 | 2190410-20 | ND |
2019-04-08 | 2190410-21 | ND |
2019-04-08 | 2190410-22 | ND |
2019-04-08 | 2190410-23 | ND |
2019-04-08 | 2190410-24 | ND |
2019-04-08 | 2190410-25 | ND |
2019-04-08 | 2190410-26 | ND |
2019-04-08 | 2190410-27 | ND |
2019-04-08 | 2190410-28 | ND |
2019-07-11 | 2190712-09 | ND |
2019-07-11 | 2190712-10 | ND |
2019-07-11 | 2190712-11 | ND |
2019-07-11 | 2190712-12 | ND |
2019-07-11 | 2190712-13 | ND |
2019-07-11 | 2190712-14 | ND |
2019-07-11 | 2190712-23 | ND |
2019-07-11 | 2190712-24 | ND |
2019-07-11 | 2190712-25 | ND |
2019-07-11 | 2190712-26 | ND |
2019-07-11 | 2190712-27 | ND |
2019-07-11 | 2190712-28 | ND |
2019-10-14 | 2191016-09 | ND |
2019-10-14 | 2191016-10 | ND |
2019-10-14 | 2191016-11 | ND |
2019-10-14 | 2191016-12 | ND |
2019-10-14 | 2191016-13 | ND |
2019-10-14 | 2191016-14 | ND |
2019-10-16 | 2191018-09 | ND |
2019-10-16 | 2191018-10 | ND |
2019-10-16 | 2191018-11 | ND |
2019-10-16 | 2191018-12 | ND |
2019-10-16 | 2191018-13 | ND |
2019-10-16 | 2191018-14 | ND |