Know Your Environment. Protect Your Health.

Bromoform

Gary Water Supply Corporation

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.

 

54

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20189.85 ppb95ND - 61.0 ppb
201930.7 ppb94ND - 152.0 ppb
202028.9 ppb94ND - 130.0 ppb
202138.0 ppb95ND - 104.0 ppb
2022124.7 ppb9940.2 ppb - 230.0 ppb
202351.2 ppb992.04 ppb - 157.0 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
2018-02-14Q18063240033.74 ppb
2018-02-14Q1806324002ND
2018-05-09Q1818860006ND
2018-05-09Q181886001116.4 ppb
2018-05-09Q1818860004ND
2018-08-23Q1833942001ND
2018-08-23Q183394200261.0 ppb
2018-11-06Q18444000012.36 ppb
2018-11-06Q18444000025.18 ppb
2019-02-05Q1905210001ND
2019-02-05Q19052100021.43 ppb
2019-04-30Q1917250001ND
2019-04-30Q1917250004ND
2019-04-30Q19172500064.57 ppb
2019-08-26Q1959264002152.0 ppb
2019-08-26Q1959264001118.0 ppb
2019-12-17Q1980329001ND
2019-12-17Q1980329002ND
2020-03-05Q2008346001ND
2020-03-05Q2008346006ND
2020-03-05Q2008346007ND
2020-05-27Q2020834001128.0 ppb
2020-05-27Q2020834002130.0 ppb
2020-09-01Q20351040011.23 ppb
2020-09-01Q20351040021.15 ppb
2020-12-02Q2048009001ND
2020-12-02Q2048009002ND
2021-02-24Q210496500157.8 ppb
2021-02-24Q210496500275.3 ppb
2021-04-29Q2110981007ND
2021-04-29Q2110981009ND
2021-04-29Q211098101113.3 ppb
2021-09-22Q2125991001ND
2021-09-22Q2125991002ND
2021-12-02Q2133319001104.0 ppb
2021-12-02Q213331900291.2 ppb
2022-02-01Q220364100240.2 ppb
2022-02-01Q2203641004166.0 ppb
2022-02-01Q220364100593.8 ppb
2022-05-17Q2214531001144.0 ppb
2022-05-17Q221453100289.8 ppb
2022-08-22Q2224783001166.0 ppb
2022-08-22Q222478300296.9 ppb
2022-11-03Q2233348001230.0 ppb
2022-11-03Q223334800296.0 ppb
2023-02-16Q2306540001116.0 ppb
2023-02-16Q230654000234.6 ppb
2023-02-16Q230654000335.7 ppb
2023-05-23Q23194070012.38 ppb
2023-05-23Q23194070022.04 ppb
2023-08-03Q2331694001157.0 ppb
2023-08-03Q233169400221.0 ppb
2023-11-10Q234839200122.3 ppb
2023-11-10Q234839200269.9 ppb