Bromoform
Dewitt WDS - South
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 | 0.450 ppb | 8 | 2 | ND - 2.60 ppb |
2015 | 0.850 ppb | 8 | 4 | ND - 3.70 ppb |
2016 | 0.988 ppb | 8 | 4 | ND - 3.70 ppb |
2017 | 1.07 ppb | 6 | 4 | ND - 1.90 ppb |
2018 | 0.445 ppb | 8 | 4 | ND - 1.40 ppb |
2019 | 0.343 ppb | 8 | 3 | ND - 1.30 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 |
---|---|---|
2014-02-13 | 1Q2014 CORONATIO | ND |
2014-02-13 | 1Q2014 JD EDINGE | ND |
2014-05-13 | 2Q2014 CORONATIO | ND |
2014-05-13 | 2Q2014 JD EDINGE | ND |
2014-08-13 | 3Q2014 JD EDINGE | 1.000 ppb |
2014-08-13 | 3Q2014 CORONATIO | ND |
2014-11-13 | 4Q2014 CORONATIO | ND |
2014-11-13 | 4Q2014 JD EDINGE | 2.60 ppb |
2015-02-11 | 1Q2015 CORONATIO | ND |
2015-02-11 | 1Q2015 JD EDINGE | 0.520 ppb |
2015-05-14 | 2Q2015 JD EDINGE | 1.70 ppb |
2015-05-14 | 2Q2015 CORONATIO | ND |
2015-08-13 | 3Q2015 JD EDINGE | 3.70 ppb |
2015-08-13 | 3Q2015 CORONATIO | ND |
2015-11-09 | 4Q2015 CORONATIO | ND |
2015-11-09 | 4Q2015 JD EDINGE | 0.880 ppb |
2016-02-12 | 1Q2016 CORONATIO | 1.40 ppb |
2016-02-12 | 1Q2016 JD EDINGE | 1.40 ppb |
2016-05-17 | 2Q2016 JD EDINGE | ND |
2016-05-17 | 2Q2016 CORONATIO | ND |
2016-08-10 | 3Q2016 CORONATIO | ND |
2016-08-10 | 3Q2016 JD EDINGE | 3.70 ppb |
2016-11-08 | 4Q2016 JD EDINGE | 1.40 ppb |
2016-11-08 | 4Q2016 CORONATIO | ND |
2017-05-10 | 2Q2017 CORONATIO | 1.80 ppb |
2017-05-10 | 2Q2017 JD EDINGE | 1.90 ppb |
2017-08-09 | 3Q2017 JD EDINGE | 1.80 ppb |
2017-08-09 | 3Q2017 CORONATIO | ND |
2017-11-07 | 4Q2017 CORONATIO | ND |
2017-11-07 | 4Q2017 JD EDINGE | 0.900 ppb |
2018-02-15 | 1Q2018 CORONATIO | ND |
2018-02-15 | 1Q2018 EDINGER D | ND |
2018-05-10 | 2Q2018 JD EDINGE | 0.640 ppb |
2018-05-10 | 2Q2018 CORONATIO | ND |
2018-08-16 | 3Q2018 CORONATIO | 0.520 ppb |
2018-08-16 | 3Q2018 JD EDINGE | 1.40 ppb |
2018-11-07 | 4Q2018 JD EDINGE | 1.000 ppb |
2018-11-17 | 4Q2018 CORONATIO | ND |
2019-02-14 | 1Q2019 JD EDINGE | 0.540 ppb |
2019-02-14 | 1Q2019 CORONATIO | ND |
2019-05-10 | 2Q2019 CORONATIO | ND |
2019-05-10 | 2Q2019 JD EDINGE | ND |
2019-08-13 | 3Q2019 JD EDINGE | 1.30 ppb |
2019-08-13 | 3Q2019 CORONATIO | ND |
2019-11-06 | 4Q2019 CORONATIO | ND |
2019-11-06 | 4Q2019 JD EDINGE | 0.900 ppb |