Know Your Environment. Protect Your Health.

Bromodichloromethane

CTWC - Naugatuck Region-Central 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.

 

105

Samples

0

Samples exceeding legal limit (MCL)

102

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20186.35 ppb2017ND - 10.5 ppb
20198.11 ppb17173.10 ppb - 12.3 ppb
20206.88 ppb17173.00 ppb - 11.9 ppb
20216.10 ppb17172.40 ppb - 9.00 ppb
20226.95 ppb17173.10 ppb - 11.0 ppb
20235.74 ppb17172.50 ppb - 9.10 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
2018-01-15BZ72858VOC13.80 ppb
2018-02-13BZ88506VOC1ND
2018-02-14BZ89697TTHM6.30 ppb
2018-02-14BZ89698TTHM7.90 ppb
2018-02-14BZ89699TTHM7.30 ppb
2018-02-14BZ89700TTHM8.10 ppb
2018-05-21CA50437TTHM6.50 ppb
2018-05-21CA50438TTHM4.60 ppb
2018-05-21CA50439TTHM6.70 ppb
2018-05-21CA50440TTHM6.30 ppb
2018-05-21CA50441VOC1ND
2018-06-11CA67845VOC1ND
2018-08-20CB149396.80 ppb
2018-08-20CB149408.40 ppb
2018-08-20CB149417.70 ppb
2018-08-20CB149428.40 ppb
2018-11-20DBP 20051350210.1 ppb
2018-11-20DBP 2005135049.90 ppb
2018-11-20DBP 2005135067.70 ppb
2018-11-20DBP 20051353410.5 ppb
2019-02-12VOC1 2005213783.10 ppb
2019-02-20DBP 2005224477.60 ppb
2019-02-20DBP 2005224487.40 ppb
2019-02-20DBP 2005224497.50 ppb
2019-02-20DBP 2005224506.10 ppb
2019-05-21DBP 2005332577.50 ppb
2019-05-21DBP 2005332587.00 ppb
2019-05-21DBP 2005332597.80 ppb
2019-05-21DBP 2005332604.40 ppb
2019-08-20DBP 2005458909.70 ppb
2019-08-20DBP 20054589110.1 ppb
2019-08-20DBP 2005458929.00 ppb
2019-08-20DBP 2005458936.90 ppb
2019-11-19DBP 20055740412.1 ppb
2019-11-19DBP 20055740512.3 ppb
2019-11-19DBP 20055740611.7 ppb
2019-11-19DBP 2005574077.60 ppb
2020-01-14VOC1 2005630463.00 ppb
2020-02-19DBP 2005668806.90 ppb
2020-02-19DBP 2005668817.10 ppb
2020-02-19DBP 2005668827.80 ppb
2020-02-19DBP 2005668834.30 ppb
2020-05-05DBP 2005746276.10 ppb
2020-05-05DBP 2005746286.40 ppb
2020-05-05DBP 2005746295.00 ppb
2020-05-05DBP 2005746308.50 ppb
2020-08-14DBP 20058671711.9 ppb
2020-08-14DBP 2005867219.90 ppb
2020-08-14DBP 2005867227.50 ppb
2020-08-14DBP 20058672311.4 ppb
2020-11-17DBP 2005985295.30 ppb
2020-11-17DBP 2005985305.30 ppb
2020-11-17DBP 2005985313.20 ppb
2020-11-17DBP 2005985327.40 ppb
2021-02-17DBP 2006070883.90 ppb
2021-02-17DBP 2006070893.60 ppb
2021-02-17DBP 2006070902.40 ppb
2021-02-17DBP 2006070915.00 ppb
2021-04-06VOC1 2006119632.70 ppb
2021-05-21DBP 2006181737.60 ppb
2021-05-21DBP 2006181746.50 ppb
2021-05-21DBP 2006181755.20 ppb
2021-05-21DBP 2006181768.20 ppb
2021-08-12DBP 2006289198.20 ppb
2021-08-12DBP 2006289207.90 ppb
2021-08-12DBP 2006289215.70 ppb
2021-08-12DBP 2006289229.00 ppb
2021-11-02D300094265 3000942707.30 ppb
2021-11-02D300094266 3000942727.90 ppb
2021-11-02D300094267 3000942744.90 ppb
2021-11-02D300094268 3000942767.70 ppb
2022-02-14CK666713.10 ppb
2022-02-22CK730587.00 ppb
2022-02-22CK730595.90 ppb
2022-02-22CK730608.10 ppb
2022-02-22CK730614.80 ppb
2022-05-20CL360736.20 ppb
2022-05-20CL360746.20 ppb
2022-05-20CL360757.50 ppb
2022-05-20CL360765.60 ppb
2022-08-03CL9638011.0 ppb
2022-08-03CL9638110.00 ppb
2022-08-03CL9638211.0 ppb
2022-08-03CL963837.90 ppb
2022-11-04CM792857.10 ppb
2022-11-04CM792865.50 ppb
2022-11-04CM792876.80 ppb
2022-11-04CM792884.40 ppb
2023-01-16CN248272.50 ppb
2023-02-09CN414414.70 ppb
2023-02-09CN414424.00 ppb
2023-02-09CN414435.70 ppb
2023-02-09CN414443.40 ppb
2023-05-08CO016444.90 ppb
2023-05-08CO016454.60 ppb
2023-05-08CO016465.40 ppb
2023-05-08CO016473.70 ppb
2023-08-04CO681709.10 ppb
2023-08-04CO681717.50 ppb
2023-08-04CO681727.90 ppb
2023-08-04CO681736.10 ppb
2023-11-03CP414637.90 ppb
2023-11-03CP414646.80 ppb
2023-11-03CP414658.00 ppb
2023-11-03CP414665.30 ppb