Know Your Environment. Protect Your Health.

Bromodichloromethane

CTWC - Shoreline Region-Guilford System

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.

 

164

Samples

0

Samples exceeding legal limit (MCL)

133

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20185.39 ppb2722ND - 15.3 ppb
20195.18 ppb2621ND - 10.5 ppb
20205.20 ppb2822ND - 11.8 ppb
20215.65 ppb2722ND - 17.0 ppb
20224.76 ppb3023ND - 11.0 ppb
20235.58 ppb2623ND - 14.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-16BZ73485VOC13.80 ppb
2018-03-15CA03073TTHM3.70 ppb
2018-03-15CA03074TTHM2.90 ppb
2018-03-15CA03075TTHM4.00 ppb
2018-03-15CA03076TTHM4.10 ppb
2018-03-30CA11464VOC13.40 ppb
2018-04-11CA18261VOC13.90 ppb
2018-06-26CA80045TTHM11.0 ppb
2018-06-26CA80046TTHM10.00 ppb
2018-06-26CA80047TTHM8.70 ppb
2018-06-26CA80048TTHM6.90 ppb
2018-07-09CA85598VOC1ND
2018-07-17CA919794.40 ppb
2018-09-12DBP 2005050429.50 ppb
2018-09-12DBP 20050504315.0 ppb
2018-09-12DBP 20050504413.5 ppb
2018-09-12DBP 20050504715.3 ppb
2018-09-13VOC1 200505275ND
2018-09-13VOC1 200505276ND
2018-09-13VOC1 200505266ND
2018-09-19VOC1 2005061161.60 ppb
2018-09-20VOC1 200506324ND
2018-10-25VOC1 2005105685.20 ppb
2018-12-17DBP 2005162354.30 ppb
2018-12-17DBP 2005162373.30 ppb
2018-12-17DBP 2005162385.20 ppb
2018-12-17DBP 2005162395.70 ppb
2019-01-30VOC1 2005200572.50 ppb
2019-03-11DBP 2005241503.20 ppb
2019-03-11DBP 2005241514.30 ppb
2019-03-11DBP 2005241525.20 ppb
2019-03-11DBP 2005241545.50 ppb
2019-06-14DBP 2005366726.00 ppb
2019-06-14DBP 2005366747.60 ppb
2019-06-14DBP 2005366808.50 ppb
2019-06-14DBP 2005366828.00 ppb
2019-06-24VOC1 2005380054.20 ppb
2019-07-08VOC1 2005411723.80 ppb
2019-07-08VOC1 200539194ND
2019-07-16VOC1 200541091ND
2019-07-16VOC1 2005406481.50 ppb
2019-07-16VOC1 200540644ND
2019-09-17DBP 2005494788.40 ppb
2019-09-17DBP 2005494799.90 ppb
2019-09-17DBP 20054948010.5 ppb
2019-09-17DBP 20054948110.3 ppb
2019-09-17VOC1 200549238ND
2019-09-18VOC1 200549465ND
2019-12-10DBP 2005596425.10 ppb
2019-12-10DBP 2005596437.00 ppb
2019-12-10DBP 2005596447.80 ppb
2019-12-10DBP 2005596459.10 ppb
2019-12-10VOC1 2005596636.30 ppb
2020-01-14VOC1 2005628566.60 ppb
2020-01-20VOC1 200563521ND
2020-01-21VOC1 200563515ND
2020-01-30VOC1 2005646031.70 ppb
2020-02-11VOC1 2005657994.40 ppb
2020-02-25VOC1 200567276ND
2020-03-03DBP 2005679984.40 ppb
2020-03-05DBP 2005685743.30 ppb
2020-03-05DBP 2005685755.00 ppb
2020-03-05DBP 2005685765.20 ppb
2020-04-01VOC1 2005710174.50 ppb
2020-06-16DBP 2005795438.40 ppb
2020-06-16DBP 20057954510.2 ppb
2020-06-16DBP 20057954611.8 ppb
2020-06-16DBP 20057954710.4 ppb
2020-06-16VOC1 200579533ND
2020-07-14VOC1 2005827084.20 ppb
2020-07-14VOC1 200582710ND
2020-09-17DBP 2005910516.10 ppb
2020-09-17DBP 2005910528.20 ppb
2020-09-17DBP 2005910539.90 ppb
2020-09-17DBP 20059105410.1 ppb
2020-10-06VOC1 2005928666.00 ppb
2020-10-13VOC1 200593765ND
2020-12-22DBP 2006020304.00 ppb
2020-12-22DBP 2006020318.20 ppb
2020-12-22DBP 2006020326.80 ppb
2020-12-22DBP 2006020336.10 ppb
2021-01-05VOC1 200602753ND
2021-01-06VOC1 2006029963.40 ppb
2021-01-25VOC1 2006047681.60 ppb
2021-03-15DBP 2006098423.40 ppb
2021-03-15DBP 2006098434.00 ppb
2021-03-15DBP 2006098444.40 ppb
2021-03-15DBP 2006098454.60 ppb
2021-06-02DBP 2006192635.40 ppb
2021-06-02DBP 2006192646.50 ppb
2021-06-02DBP 2006192657.00 ppb
2021-06-02DBP 2006192667.20 ppb
2021-06-07VOC1 200621229ND
2021-06-23VOC1 2006220046.10 ppb
2021-06-29VOC1 200622710ND
2021-07-12VOC1 2006242527.10 ppb
2021-07-12VOC1 200624251ND
2021-07-20VOC1 200625447ND
2021-09-14300059734 30005973911.5 ppb
2021-09-14300059735 30005974112.3 ppb
2021-09-14300059736 30005974315.4 ppb
2021-09-14300059737 30005974517.0 ppb
2021-10-11V300077965 3000779664.10 ppb
2021-12-06V300113153 3001131555.00 ppb
2021-12-09D300117672 3001176774.70 ppb
2021-12-09D300117673 3001176796.20 ppb
2021-12-09D300117674 3001176818.00 ppb
2021-12-09D300117675 3001176837.70 ppb
2022-01-11CK140951.40 ppb
2022-01-11CK14105ND
2022-02-28CK761924.40 ppb
2022-03-07CK80900ND
2022-03-09CK835193.60 ppb
2022-03-09CK835204.20 ppb
2022-03-09CK835214.90 ppb
2022-03-25CK952304.90 ppb
2022-04-18CL111744.90 ppb
2022-06-14CL56476ND
2022-06-16CL588446.70 ppb
2022-06-16CL5884511.0 ppb
2022-06-16CL588468.70 ppb
2022-06-16CL5884711.0 ppb
2022-06-22CL62299ND
2022-07-06CL714575.80 ppb
2022-07-06CL71463ND
2022-07-26CL89875ND
2022-08-02CL959770.860 ppb
2022-08-15CM05635ND
2022-08-29CM178306.00 ppb
2022-09-13CM307145.00 ppb
2022-09-13CM306959.90 ppb
2022-09-13CM306966.90 ppb
2022-09-13CM306979.90 ppb
2022-12-01CM975874.70 ppb
2022-12-01CM975888.00 ppb
2022-12-01CM975896.10 ppb
2022-12-01CM975907.20 ppb
2022-12-19CN082486.70 ppb
2023-01-03CN160525.00 ppb
2023-01-09CN19603ND
2023-01-10CN20796ND
2023-01-10CN207981.50 ppb
2023-02-13CN418582.50 ppb
2023-03-22CN664872.30 ppb
2023-03-22CN664883.80 ppb
2023-03-22CN664892.90 ppb
2023-03-22CN664903.60 ppb
2023-05-10CO033683.60 ppb
2023-06-13CO272771.20 ppb
2023-06-15CO319965.70 ppb
2023-06-15CO319979.90 ppb
2023-06-15CO319988.50 ppb
2023-06-15CO319998.40 ppb
2023-09-05CO906839.90 ppb
2023-09-05CO9068413.0 ppb
2023-09-05CO9068511.0 ppb
2023-09-05CO9068614.0 ppb
2023-09-18CP024295.90 ppb
2023-11-28CP553225.40 ppb
2023-11-29CP56431ND
2023-12-07CP650784.40 ppb
2023-12-07CP650798.90 ppb
2023-12-07CP650806.00 ppb
2023-12-07CP650817.70 ppb