Know Your Environment. Protect Your Health.

Bromoform

Connecticut Water Company - Northern Region-Western System

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

218

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0755 ppb383ND - 1.30 ppb
20190.132 ppb345ND - 1.50 ppb
20200.0974 ppb385ND - 1.10 ppb
2021ND340ND
20220.0498 ppb403ND - 0.800 ppb
20230.0335 ppb342ND - 0.600 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is 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, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-23BZ78888VOC1ND
2018-01-31BZ82950VOC1ND
2018-02-01BZ83504TTHMND
2018-02-01BZ83505TTHMND
2018-02-01BZ83506TTHMND
2018-02-01BZ83507TTHMND
2018-02-01BZ83508TTHMND
2018-02-01BZ83509TTHMND
2018-02-01BZ83510TTHMND
2018-02-21BZ93283TTHMND
2018-05-03CA41161TTHMND
2018-05-03CA41162TTHMND
2018-05-03CA41163TTHMND
2018-05-03CA41164TTHMND
2018-05-03CA41165TTHMND
2018-05-03CA41166TTHMND
2018-05-03CA41167TTHMND
2018-05-03D8E0468-01VOCND
2018-05-15CA48118TTHMND
2018-07-13CA89901ND
2018-08-02CB040200.900 ppb
2018-08-02CB04021ND
2018-08-02CB040220.670 ppb
2018-08-02CB04023ND
2018-08-02CB04024ND
2018-08-02CB04025ND
2018-08-02CB04026ND
2018-08-06CB05840ND
2018-08-10DBP 200502031ND
2018-08-10CB09154ND
2018-11-01DBP 2005111331.30 ppb
2018-11-01DBP 200511134ND
2018-11-01DBP 200511135ND
2018-11-01DBP 200511136ND
2018-11-01DBP 200511137ND
2018-11-01DBP 200511138ND
2018-11-01DBP 200511139ND
2018-11-05DBP 200511389ND
2019-01-02VOC1 200517309ND
2019-02-07DBP 200521083ND
2019-02-07DBP 200521084ND
2019-02-07DBP 200521085ND
2019-02-07DBP 200521086ND
2019-02-07DBP 200521087ND
2019-02-07DBP 200521088ND
2019-02-07DBP 2005210891.10 ppb
2019-02-11DBP 200521256ND
2019-03-15VOC1 200524883ND
2019-05-09DBP 2005315750.700 ppb
2019-05-09DBP 200531576ND
2019-05-09DBP 200531577ND
2019-05-09DBP 200531582ND
2019-05-09DBP 200531584ND
2019-05-09DBP 200531586ND
2019-05-09DBP 200531587ND
2019-05-13DBP 200531837ND
2019-08-01DBP 2005427221.50 ppb
2019-08-01DBP 200542723ND
2019-08-01DBP 2005427240.700 ppb
2019-08-01DBP 200542725ND
2019-08-01DBP 200542726ND
2019-08-01DBP 200542727ND
2019-08-01DBP 200542728ND
2019-08-13DBP 200544758ND
2019-11-07DBP 2005558280.500 ppb
2019-11-07DBP 200555830ND
2019-11-07DBP 200555831ND
2019-11-07DBP 200555832ND
2019-11-07DBP 200555833ND
2019-11-07DBP 200555834ND
2019-11-07DBP 200555835ND
2019-11-18DBP 200557004ND
2020-01-02VOC1 200561504ND
2020-01-06DBP 200561665ND
2020-02-06DBP 200565357ND
2020-02-06DBP 200565358ND
2020-02-06DBP 200565359ND
2020-02-06DBP 200565360ND
2020-02-06DBP 200565361ND
2020-02-06DBP 200565362ND
2020-02-07DBP 200565640ND
2020-02-07DBP 200565641ND
2020-05-07DBP 200575171ND
2020-05-07DBP 200575173ND
2020-05-07DBP 200575175ND
2020-05-07DBP 200575176ND
2020-05-07DBP 200575177ND
2020-05-08DBP 200575170ND
2020-05-08DBP 200575174ND
2020-05-08DBP 200575172ND
2020-06-29VOC1 200580772ND
2020-08-06DBP 2005857441.10 ppb
2020-08-06DBP 200585750ND
2020-08-06DBP 2005857530.700 ppb
2020-08-06DBP 2005857540.700 ppb
2020-08-07DBP 200585755ND
2020-08-07DBP 200585756ND
2020-08-07DBP 200585757ND
2020-08-07DBP 200585758ND
2020-08-11VOC1 200586573ND
2020-09-21VOC1 200591014ND
2020-10-07VOC1 200593218ND
2020-11-05DBP 200597356ND
2020-11-05DBP 2005973570.600 ppb
2020-11-05DBP 200597358ND
2020-11-05DBP 200597359ND
2020-11-05DBP 200597360ND
2020-11-05DBP 200597361ND
2020-11-12DBP 2005982060.600 ppb
2020-11-12DBP 200598210ND
2021-02-11DBP 200606895ND
2021-02-11DBP 200606896ND
2021-02-11DBP 200606907ND
2021-02-12DBP 200606911ND
2021-02-16DBP 200606912ND
2021-02-17DBP 200607112ND
2021-02-22DBP 200607459ND
2021-02-23DBP 200607645ND
2021-03-05VOC1 200608707ND
2021-05-13DBP 200617239ND
2021-05-14DBP 200617236ND
2021-05-14DBP 200617237ND
2021-05-14DBP 200617238ND
2021-05-20DBP 200618316ND
2021-05-20DBP 200618317ND
2021-05-20DBP 200618319ND
2021-05-20DBP 200618321ND
2021-08-12DBP 200628756ND
2021-08-12DBP 200628757ND
2021-08-12DBP 200628758ND
2021-08-12DBP 200628759ND
2021-08-12DBP 200628760ND
2021-08-12DBP 200628761ND
2021-08-25DBP 200629815ND
2021-08-25DBP 200629816ND
2021-09-14300059932 300059934ND
2021-11-04D300098348 300098357ND
2021-11-04D300098349 300098359ND
2021-11-04D300098350 300098361ND
2021-11-04D300098351 300098363ND
2021-11-04D300098352 300098365ND
2021-11-05D300098353 300098367ND
2021-11-05D300098354 300098369ND
2021-11-05D300098355 300098371ND
2022-01-24CK22294ND
2022-01-25CK23175ND
2022-01-25CK23176ND
2022-02-01CK27428ND
2022-02-03CK29752ND
2022-02-03CK29753ND
2022-02-03CK29754ND
2022-02-03CK29755ND
2022-02-03CK29756ND
2022-02-03CK29757ND
2022-02-03CK29758ND
2022-02-04CK31489ND
2022-02-16CK69359ND
2022-05-12CL31513ND
2022-05-12CL31514ND
2022-05-12CL31515ND
2022-05-12CL31516ND
2022-05-12CL31517ND
2022-05-13CL31518ND
2022-05-13CL31519ND
2022-05-13CL31520ND
2022-08-04CL98963ND
2022-08-04CL98964ND
2022-08-04CL98965ND
2022-08-05CL98966ND
2022-08-05CL989670.530 ppb
2022-08-05CL98968ND
2022-08-05CL98969ND
2022-08-05CL98970ND
2022-08-26CM16199ND
2022-09-08CM256720.660 ppb
2022-09-20CM37295ND
2022-11-17CM90283ND
2022-11-17CM90284ND
2022-11-17CM90285ND
2022-11-17CM90286ND
2022-11-17CM90287ND
2022-11-17CM90288ND
2022-11-17CM90289ND
2022-11-18CM902900.800 ppb
2023-01-17CN24238ND
2023-02-02CN37077ND
2023-02-02CN37078ND
2023-02-02CN37079ND
2023-02-02CN37080ND
2023-02-02CN37081ND
2023-02-02CN37082ND
2023-02-02CN37083ND
2023-02-02CN37084ND
2023-05-12CO06294ND
2023-05-12CO06295ND
2023-05-12CO06296ND
2023-05-12CO06297ND
2023-05-12CO06298ND
2023-05-12CO06299ND
2023-05-18CO093860.600 ppb
2023-05-18CO09387ND
2023-08-10CO73376ND
2023-08-10CO73377ND
2023-08-10CO73378ND
2023-08-11CO73379ND
2023-08-11CO73380ND
2023-08-11CO73381ND
2023-08-11CO73382ND
2023-08-11CO733830.540 ppb
2023-11-16CP50449ND
2023-11-16CP50450ND
2023-11-16CP50451ND
2023-11-16CP50452ND
2023-11-16CP50453ND
2023-11-16CP50454ND
2023-11-16CP50455ND
2023-11-17CP50456ND
2023-12-13CP67269ND