Know Your Environment. Protect Your Health.

Bromodichloromethane

CTWC - Unionville 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.

 

117

Samples

0

Samples exceeding legal limit (MCL)

106

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.11 ppb1918ND - 8.00 ppb
20195.57 ppb1817ND - 11.1 ppb
20203.64 ppb2118ND - 6.80 ppb
20214.61 ppb2220ND - 10.2 ppb
20223.57 ppb2017ND - 6.80 ppb
20234.37 ppb1716ND - 5.80 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
2018-01-16BZ73286TTHM3.60 ppb
2018-01-16BZ73287TTHM4.00 ppb
2018-01-16BZ73288TTHM3.50 ppb
2018-01-16BZ73289TTHM3.90 ppb
2018-04-27CA37381TTHM3.30 ppb
2018-04-27CA37382TTHM3.90 ppb
2018-04-27CA37383TTHM3.60 ppb
2018-04-27CA37384TTHM4.00 ppb
2018-07-23CA967421.50 ppb
2018-07-23CA96743ND
2018-07-24CA967344.30 ppb
2018-07-24CA967355.40 ppb
2018-07-24CA967364.40 ppb
2018-07-24CA967378.00 ppb
2018-07-31CB013601.50 ppb
2018-10-02DBP 2005076654.90 ppb
2018-10-02DBP 2005076667.00 ppb
2018-10-02DBP 2005076676.00 ppb
2018-10-02DBP 2005080205.30 ppb
2019-01-08DBP 2005181305.20 ppb
2019-01-08DBP 2005181364.50 ppb
2019-01-08DBP 2005181394.40 ppb
2019-01-08DBP 2005181435.00 ppb
2019-01-29VOC1 200520002ND
2019-01-29VOC1 2005199971.10 ppb
2019-04-09DBP 20052784611.1 ppb
2019-04-09DBP 2005278477.60 ppb
2019-04-09DBP 2005278485.50 ppb
2019-04-09DBP 2005278499.70 ppb
2019-07-02DBP 2005389864.50 ppb
2019-07-02DBP 2005389875.10 ppb
2019-07-02DBP 2005389884.50 ppb
2019-07-02DBP 2005389894.80 ppb
2019-10-08DBP 2005520126.40 ppb
2019-10-08DBP 2005520137.50 ppb
2019-10-08DBP 2005520146.50 ppb
2019-10-08DBP 2005520156.80 ppb
2020-01-16DBP 2005634004.00 ppb
2020-01-16DBP 2005634015.20 ppb
2020-01-16DBP 2005634026.60 ppb
2020-01-16DBP 2005634033.40 ppb
2020-04-16DBP 2005729174.20 ppb
2020-04-16DBP 2005729185.10 ppb
2020-04-16DBP 2005729206.80 ppb
2020-04-16DBP 2005729224.20 ppb
2020-06-25VOC1 200580719ND
2020-07-13DBP 2005824814.40 ppb
2020-07-13DBP 2005824823.20 ppb
2020-07-13DBP 2005824834.30 ppb
2020-07-14DBP 2005828412.90 ppb
2020-08-10VOC1 2005856640.900 ppb
2020-10-02VOC1 2005924661.20 ppb
2020-10-02VOC1 200593237ND
2020-10-02VOC1 200592486ND
2020-10-19DBP 2005944693.90 ppb
2020-10-20DBP 2005948474.50 ppb
2020-10-20DBP 2005948485.70 ppb
2020-10-20DBP 2005948496.00 ppb
2021-01-08DBP 2006034104.60 ppb
2021-01-08DBP 2006034114.80 ppb
2021-01-08DBP 2006034129.00 ppb
2021-01-08DBP 2006034134.50 ppb
2021-03-02VOC1 200608358ND
2021-03-02VOC1 2006083570.900 ppb
2021-04-15DBP 2006136583.20 ppb
2021-04-15DBP 2006136594.30 ppb
2021-04-15DBP 2006136603.60 ppb
2021-04-15DBP 2006136613.20 ppb
2021-06-04VOC1 2006197080.500 ppb
2021-07-15DBP 2006251358.20 ppb
2021-07-15DBP 2006251369.90 ppb
2021-07-15DBP 2006251379.60 ppb
2021-07-15DBP 20062513810.2 ppb
2021-07-20VOC1 200625423ND
2021-07-29DBP 2006266785.90 ppb
2021-10-11H300079420 3000794244.10 ppb
2021-10-11H300079421 3000794263.90 ppb
2021-10-11H300079422 3000794285.20 ppb
2021-10-11H300079423 3000794305.00 ppb
2021-10-15V300084253 3000842540.800 ppb
2022-01-13CK155224.50 ppb
2022-01-13CK155235.10 ppb
2022-01-13CK155244.00 ppb
2022-01-13CK155254.80 ppb
2022-01-21CK22680ND
2022-01-21CK226810.980 ppb
2022-03-25CK96363ND
2022-04-05CL00751ND
2022-04-08CL061484.80 ppb
2022-04-08CL061492.10 ppb
2022-04-08CL061501.50 ppb
2022-04-08CL061513.80 ppb
2022-07-11CL753274.40 ppb
2022-07-11CL753285.30 ppb
2022-07-11CL753293.90 ppb
2022-07-11CL753304.90 ppb
2022-10-07CM588204.90 ppb
2022-10-07CM588216.80 ppb
2022-10-07CM588224.30 ppb
2022-10-07CM588235.40 ppb
2023-01-16CN244794.80 ppb
2023-01-16CN244805.40 ppb
2023-01-16CN244814.10 ppb
2023-01-16CN244825.80 ppb
2023-04-07CN807904.20 ppb
2023-04-07CN807915.50 ppb
2023-04-07CN807924.10 ppb
2023-04-07CN807935.10 ppb
2023-07-18CO530344.40 ppb
2023-07-18CO530355.10 ppb
2023-07-18CO530363.60 ppb
2023-07-18CO530374.30 ppb
2023-08-01CO63104ND
2023-10-04CP178114.30 ppb
2023-10-04CP178125.00 ppb
2023-10-04CP178134.40 ppb
2023-10-04CP178144.20 ppb