Bromodichloromethane
City of Puyallup
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 | 0.492 ppb | 38 | 14 | ND - 3.40 ppb |
2015 | 0.747 ppb | 32 | 21 | ND - 2.10 ppb |
2016 | 0.666 ppb | 32 | 18 | ND - 3.20 ppb |
2017 | 0.615 ppb | 33 | 17 | ND - 2.80 ppb |
2018 | 0.597 ppb | 33 | 20 | ND - 1.50 ppb |
2019 | 0.891 ppb | 20 | 13 | ND - 2.81 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 |
---|---|---|
2014-02-11 | 73328 | ND |
2014-02-11 | 73326 | 1.40 ppb |
2014-02-11 | 73324 | ND |
2014-02-11 | 73330 | ND |
2014-02-11 | 73331 | ND |
2014-02-11 | 73329 | ND |
2014-02-11 | 73327 | 1.10 ppb |
2014-02-11 | 73325 | 0.900 ppb |
2014-05-06 | 73518 | ND |
2014-05-06 | 73516 | ND |
2014-05-06 | 73517 | ND |
2014-05-06 | 73521 | 0.600 ppb |
2014-05-06 | 73514 | ND |
2014-05-06 | 73515 | 1.30 ppb |
2014-05-06 | 73519 | 0.700 ppb |
2014-05-06 | 73520 | 0.600 ppb |
2014-07-08 | 73731 | ND |
2014-07-08 | 73733 | ND |
2014-07-08 | 73732 | ND |
2014-07-09 | 73750 | ND |
2014-07-09 | 73752 | ND |
2014-07-09 | 73751 | ND |
2014-08-08 | 73949 | ND |
2014-08-08 | 73948 | ND |
2014-08-08 | 73952 | 3.40 ppb |
2014-08-08 | 73950 | ND |
2014-08-08 | 73953 | 2.10 ppb |
2014-08-08 | 73954 | 0.700 ppb |
2014-08-08 | 73951 | ND |
2014-08-08 | 73955 | ND |
2014-11-17 | 74516 | ND |
2014-11-17 | 74515 | ND |
2014-11-17 | 74519 | 1.50 ppb |
2014-11-17 | 74518 | ND |
2014-11-17 | 74520 | 1.60 ppb |
2014-11-17 | 74521 | ND |
2014-11-17 | 74514 | 1.20 ppb |
2014-11-17 | 74517 | 1.60 ppb |
2015-02-10 | 74752 | ND |
2015-02-10 | 74749 | 0.600 ppb |
2015-02-10 | 74750 | 0.900 ppb |
2015-02-10 | 74747 | 0.900 ppb |
2015-02-10 | 74753 | 1.40 ppb |
2015-02-10 | 74751 | ND |
2015-02-10 | 74746 | ND |
2015-02-10 | 74748 | 1.70 ppb |
2015-05-07 | 74983 | ND |
2015-05-07 | 74981 | 0.600 ppb |
2015-05-07 | 74977 | 1.40 ppb |
2015-05-07 | 74980 | 1.30 ppb |
2015-05-07 | 74982 | 0.600 ppb |
2015-05-07 | 74978 | ND |
2015-05-07 | 74979 | ND |
2015-05-07 | 74976 | 1.30 ppb |
2015-08-05 | 75262 | ND |
2015-08-05 | 75261 | 0.500 ppb |
2015-08-05 | 75257 | 1.50 ppb |
2015-08-05 | 75263 | 1.30 ppb |
2015-08-05 | 75259 | 0.600 ppb |
2015-08-05 | 75260 | ND |
2015-08-05 | 75258 | ND |
2015-08-05 | 75256 | 2.10 ppb |
2015-11-10 | 75671 | ND |
2015-11-10 | 75670 | 0.800 ppb |
2015-11-10 | 75675 | 1.30 ppb |
2015-11-10 | 75674 | 1.000 ppb |
2015-11-10 | 75668 | ND |
2015-11-10 | 75673 | 0.900 ppb |
2015-11-10 | 75672 | 1.40 ppb |
2015-11-10 | 75669 | 1.80 ppb |
2016-02-02 | 0.600 ppb | |
2016-02-02 | ND | |
2016-02-02 | 0.600 ppb | |
2016-02-02 | 1.000 ppb | |
2016-02-02 | ND | |
2016-02-02 | ND | |
2016-02-02 | ND | |
2016-02-02 | 1.70 ppb | |
2016-05-04 | 0.600 ppb | |
2016-05-04 | 0.800 ppb | |
2016-05-04 | ND | |
2016-05-04 | 1.70 ppb | |
2016-05-04 | 1.30 ppb | |
2016-05-04 | 1.10 ppb | |
2016-05-04 | ND | |
2016-05-04 | ND | |
2016-08-09 | ND | |
2016-08-09 | 3.20 ppb | |
2016-08-09 | 1.30 ppb | |
2016-08-09 | 1.000 ppb | |
2016-08-09 | ND | |
2016-08-09 | 1.10 ppb | |
2016-08-09 | 0.800 ppb | |
2016-08-09 | ND | |
2016-11-14 | 0.800 ppb | |
2016-11-14 | 1.000 ppb | |
2016-11-14 | 1.70 ppb | |
2016-11-14 | ND | |
2016-11-14 | ND | |
2016-11-14 | 1.000 ppb | |
2016-11-14 | ND | |
2016-11-14 | ND | |
2017-02-06 | ND | |
2017-02-06 | 0.500 ppb | |
2017-02-06 | ND | |
2017-02-06 | 1.50 ppb | |
2017-02-06 | ND | |
2017-02-06 | ND | |
2017-02-06 | ND | |
2017-02-06 | ND | |
2017-05-25 | 1.30 ppb | |
2017-05-25 | 0.900 ppb | |
2017-05-25 | 1.60 ppb | |
2017-05-25 | 0.700 ppb | |
2017-05-25 | ND | |
2017-05-25 | ND | |
2017-05-25 | 0.800 ppb | |
2017-05-25 | ND | |
2017-08-01 | 0.900 ppb | |
2017-08-01 | 2.80 ppb | |
2017-08-01 | ND | |
2017-08-01 | ND | |
2017-08-01 | ND | |
2017-08-01 | 1.90 ppb | |
2017-08-01 | 0.900 ppb | |
2017-08-01 | 0.300 ppb | |
2017-11-13 | 1.000 ppb | |
2017-11-13 | 2.10 ppb | |
2017-11-13 | ND | |
2017-11-13 | 1.40 ppb | |
2017-11-13 | ND | |
2017-11-13 | 0.600 ppb | |
2017-11-13 | 1.10 ppb | |
2017-11-13 | ND | |
2017-12-28 | ND | |
2018-02-06 | 1.40 ppb | |
2018-02-06 | ND | |
2018-02-06 | 0.700 ppb | |
2018-02-06 | 0.900 ppb | |
2018-02-06 | 1.10 ppb | |
2018-02-06 | 1.30 ppb | |
2018-02-06 | 0.600 ppb | |
2018-02-06 | ND | |
2018-05-03 | 1.40 ppb | |
2018-05-03 | ND | |
2018-05-03 | 0.800 ppb | |
2018-05-03 | 1.50 ppb | |
2018-05-03 | 0.800 ppb | |
2018-05-03 | ND | |
2018-05-03 | 0.500 ppb | |
2018-05-03 | ND | |
2018-07-31 | ND | |
2018-08-07 | 1.28 ppb | |
2018-08-07 | ND | |
2018-08-07 | ND | |
2018-08-07 | ND | |
2018-08-07 | 0.740 ppb | |
2018-08-07 | 0.570 ppb | |
2018-08-07 | ND | |
2018-08-07 | ND | |
2018-11-27 | 1.48 ppb | |
2018-11-27 | ND | |
2018-11-27 | ND | |
2018-11-27 | 0.970 ppb | |
2018-11-27 | 1.23 ppb | |
2018-11-27 | 0.710 ppb | |
2018-11-27 | 0.780 ppb | |
2018-11-27 | 0.950 ppb | |
2019-02-05 | 1.54 ppb | |
2019-02-05 | ND | |
2019-02-05 | ND | |
2019-02-05 | 0.980 ppb | |
2019-02-05 | 0.980 ppb | |
2019-02-05 | ND | |
2019-02-05 | ND | |
2019-02-05 | ND | |
2019-05-09 | 1.36 ppb | |
2019-05-09 | 1.68 ppb | |
2019-05-09 | ND | |
2019-05-09 | 0.630 ppb | |
2019-05-09 | 1.37 ppb | |
2019-05-09 | 1.02 ppb | |
2019-05-09 | 0.530 ppb | |
2019-05-09 | ND | |
2019-08-01 | 2.62 ppb | |
2019-08-01 | 1.02 ppb | |
2019-11-06 | 1.27 ppb | |
2019-11-06 | 2.81 ppb |