Know Your Environment. Protect Your Health.

Dibromochloromethane

CTWC - Unionville System

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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)

57

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.447 ppb196ND - 3.20 ppb
20191.04 ppb1810ND - 4.70 ppb
20200.929 ppb2112ND - 4.10 ppb
20210.691 ppb2213ND - 2.50 ppb
20220.945 ppb2011ND - 3.60 ppb
20230.430 ppb175ND - 2.00 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2018-01-16BZ73286TTHMND
2018-01-16BZ73287TTHM0.670 ppb
2018-01-16BZ73288TTHMND
2018-01-16BZ73289TTHMND
2018-04-27CA37381TTHMND
2018-04-27CA37382TTHMND
2018-04-27CA37383TTHMND
2018-04-27CA37384TTHMND
2018-07-23CA967421.50 ppb
2018-07-23CA96743ND
2018-07-24CA967340.520 ppb
2018-07-24CA967351.50 ppb
2018-07-24CA96736ND
2018-07-24CA967373.20 ppb
2018-07-31CB01360ND
2018-10-02DBP 200507665ND
2018-10-02DBP 2005076661.10 ppb
2018-10-02DBP 200507667ND
2018-10-02DBP 200508020ND
2019-01-08DBP 200518130ND
2019-01-08DBP 2005181361.40 ppb
2019-01-08DBP 200518139ND
2019-01-08DBP 200518143ND
2019-01-29VOC1 200520002ND
2019-01-29VOC1 2005199970.900 ppb
2019-04-09DBP 2005278464.70 ppb
2019-04-09DBP 2005278473.90 ppb
2019-04-09DBP 2005278480.600 ppb
2019-04-09DBP 2005278494.60 ppb
2019-07-02DBP 200538986ND
2019-07-02DBP 200538987ND
2019-07-02DBP 200538988ND
2019-07-02DBP 200538989ND
2019-10-08DBP 2005520120.600 ppb
2019-10-08DBP 2005520130.700 ppb
2019-10-08DBP 2005520140.600 ppb
2019-10-08DBP 2005520150.700 ppb
2020-01-16DBP 2005634000.600 ppb
2020-01-16DBP 200563401ND
2020-01-16DBP 2005634021.60 ppb
2020-01-16DBP 200563403ND
2020-04-16DBP 200572917ND
2020-04-16DBP 200572918ND
2020-04-16DBP 200572920ND
2020-04-16DBP 200572922ND
2020-06-25VOC1 2005807190.700 ppb
2020-07-13DBP 200582481ND
2020-07-13DBP 2005824822.80 ppb
2020-07-13DBP 2005824830.900 ppb
2020-07-14DBP 200582841ND
2020-08-10VOC1 2005856641.000 ppb
2020-10-02VOC1 2005924661.20 ppb
2020-10-02VOC1 200593237ND
2020-10-02VOC1 2005924860.900 ppb
2020-10-19DBP 2005944692.90 ppb
2020-10-20DBP 2005948470.500 ppb
2020-10-20DBP 2005948484.10 ppb
2020-10-20DBP 2005948492.30 ppb
2021-01-08DBP 2006034101.000 ppb
2021-01-08DBP 2006034111.10 ppb
2021-01-08DBP 2006034122.50 ppb
2021-01-08DBP 2006034132.10 ppb
2021-03-02VOC1 200608358ND
2021-03-02VOC1 2006083570.900 ppb
2021-04-15DBP 200613658ND
2021-04-15DBP 2006136591.30 ppb
2021-04-15DBP 200613660ND
2021-04-15DBP 200613661ND
2021-06-04VOC1 2006197080.900 ppb
2021-07-15DBP 2006251350.600 ppb
2021-07-15DBP 2006251360.800 ppb
2021-07-15DBP 2006251370.600 ppb
2021-07-15DBP 2006251381.90 ppb
2021-07-20VOC1 2006254230.800 ppb
2021-07-29DBP 200626678ND
2021-10-11H300079420 300079424ND
2021-10-11H300079421 300079426ND
2021-10-11H300079422 300079428ND
2021-10-11H300079423 300079430ND
2021-10-15V300084253 3000842540.700 ppb
2022-01-13CK15522ND
2022-01-13CK155232.80 ppb
2022-01-13CK15524ND
2022-01-13CK155251.40 ppb
2022-01-21CK22680ND
2022-01-21CK226811.000 ppb
2022-03-25CK963630.580 ppb
2022-04-05CL007510.640 ppb
2022-04-08CL061481.30 ppb
2022-04-08CL061492.40 ppb
2022-04-08CL061501.90 ppb
2022-04-08CL061512.60 ppb
2022-07-11CL75327ND
2022-07-11CL753283.60 ppb
2022-07-11CL75329ND
2022-07-11CL75330ND
2022-10-07CM58820ND
2022-10-07CM588210.670 ppb
2022-10-07CM58822ND
2022-10-07CM58823ND
2023-01-16CN24479ND
2023-01-16CN244801.60 ppb
2023-01-16CN24481ND
2023-01-16CN244822.00 ppb
2023-04-07CN80790ND
2023-04-07CN807911.80 ppb
2023-04-07CN80792ND
2023-04-07CN807931.30 ppb
2023-07-18CO53034ND
2023-07-18CO53035ND
2023-07-18CO53036ND
2023-07-18CO53037ND
2023-08-01CO631040.610 ppb
2023-10-04CP17811ND
2023-10-04CP17812ND
2023-10-04CP17813ND
2023-10-04CP17814ND