Bromoform
Plymouth Water Department
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 | 0.935 ppb | 4 | 4 | 0.780 ppb - 1.09 ppb |
2015 | 1.24 ppb | 28 | 12 | ND - 11.2 ppb |
2016 | 1.09 ppb | 28 | 10 | ND - 8.82 ppb |
2017 | 1.28 ppb | 30 | 12 | ND - 13.7 ppb |
2018 | 1.42 ppb | 26 | 8 | ND - 14.5 ppb |
2019 | 1.45 ppb | 28 | 12 | ND - 14.6 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 | Result |
---|---|
2014-11-24 | 0.780 ppb |
2014-11-24 | 0.780 ppb |
2014-11-24 | 1.09 ppb |
2014-11-24 | 1.09 ppb |
2015-08-19 | 0.660 ppb |
2015-08-19 | 0.660 ppb |
2015-08-19 | 1.39 ppb |
2015-08-19 | 1.39 ppb |
2015-08-19 | 11.2 ppb |
2015-08-19 | 11.2 ppb |
2015-08-19 | 2.06 ppb |
2015-08-19 | 2.06 ppb |
2015-11-24 | 1.000 ppb |
2015-11-24 | 1.000 ppb |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | 1.06 ppb |
2015-11-24 | 1.06 ppb |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-11-24 | ND |
2015-12-14 | ND |
2015-12-14 | ND |
2016-08-17 | 1.06 ppb |
2016-08-17 | 1.06 ppb |
2016-08-17 | 1.72 ppb |
2016-08-17 | 1.72 ppb |
2016-08-17 | 8.82 ppb |
2016-08-17 | 8.82 ppb |
2016-08-17 | 3.08 ppb |
2016-08-17 | 3.08 ppb |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | 0.570 ppb |
2016-10-05 | 0.570 ppb |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-11-21 | ND |
2016-11-21 | ND |
2017-01-24 | ND |
2017-01-24 | ND |
2017-08-16 | 0.820 ppb |
2017-08-16 | 0.820 ppb |
2017-08-16 | 1.30 ppb |
2017-08-16 | 1.30 ppb |
2017-08-16 | 13.7 ppb |
2017-08-16 | 13.7 ppb |
2017-08-16 | 2.24 ppb |
2017-08-16 | 2.24 ppb |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | ND |
2017-12-07 | 0.560 ppb |
2017-12-07 | 0.560 ppb |
2017-12-07 | 0.540 ppb |
2017-12-07 | 0.540 ppb |
2017-12-07 | ND |
2017-12-07 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-08-22 | 0.710 ppb |
2018-08-22 | 0.710 ppb |
2018-08-22 | 1.03 ppb |
2018-08-22 | 1.03 ppb |
2018-08-22 | 14.5 ppb |
2018-08-22 | 14.5 ppb |
2018-08-22 | 2.16 ppb |
2018-08-22 | 2.16 ppb |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-10-23 | ND |
2018-12-19 | ND |
2018-12-19 | ND |
2019-08-14 | 0.760 ppb |
2019-08-14 | 0.760 ppb |
2019-08-14 | 1.32 ppb |
2019-08-14 | 1.32 ppb |
2019-08-14 | 14.6 ppb |
2019-08-14 | 14.6 ppb |
2019-08-14 | 2.13 ppb |
2019-08-14 | 2.13 ppb |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | 0.690 ppb |
2019-10-03 | 0.690 ppb |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | ND |
2019-10-03 | 0.860 ppb |
2019-10-03 | 0.860 ppb |
2019-10-03 | ND |
2019-10-03 | ND |