Know Your Environment. Protect Your Health.

Bromoform

London Waterworks

NOTE: London Waterworks purchases water from City Corporation which is required to test for bromoform. Sample information shown below was taken by City 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.

 

97

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND60ND
2020ND80ND
2021ND80ND
2022ND80ND
2023ND80ND

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

NOTE: London Waterworks purchases water from City Corporation which is required to test for bromoform. Sample information shown below was taken by City Corporation.

Date Lab ID Result
2018-02-0618039007402ND
2018-02-0618039007502ND
2018-02-0618039007702ND
2018-02-0618039007602ND
2018-05-0118122002302ND
2018-05-0118122002402ND
2018-05-0118122002502ND
2018-05-0118122002602ND
2018-07-3118213000802ND
2018-07-3118213000902ND
2018-07-3118213000602ND
2018-07-3118213001509ND
2018-07-3118213000702ND
2018-10-2918305003702ND
2018-10-2918305003502ND
2018-10-2918305003602ND
2018-10-2918305003402ND
2019-01-2919031009702ND
2019-01-2919031009802ND
2019-01-2919031009902ND
2019-01-2919031009602ND
2019-04-2219115009602ND
2019-04-2219115009502ND
2019-04-2219115009802ND
2019-04-2219115009702ND
2019-07-1019192010301ND
2019-07-2219206010402ND
2019-07-2219206010202ND
2019-07-2219206010502ND
2019-07-2219206010302ND
2020-01-2220023012202ND
2020-01-2220023012002ND
2020-01-2220023012302ND
2020-01-2220023012102ND
2020-04-2020114005402ND
2020-04-2020114005302ND
2020-04-2020114005502ND
2020-04-2020114005202ND
2020-07-2020205001501ND
2020-07-2020205001702ND
2020-07-2020205001602ND
2020-07-2020205001102ND
2020-07-2020205001802ND
2020-10-1920296001202ND
2020-10-1920296001302ND
2020-10-1920296001702ND
2020-10-1920296001602ND
2021-01-2021021006402ND
2021-01-2021021006202ND
2021-01-2021021006302ND
2021-01-2021021006102ND
2021-04-1921112013302ND
2021-04-1921112013502ND
2021-04-1921112013202ND
2021-04-1921112013402ND
2021-07-1921203001102ND
2021-07-1921203001402ND
2021-07-1921203001202ND
2021-07-1921203001302ND
2021-10-1821294007102ND
2021-10-1821294007202ND
2021-10-1821294008302ND
2021-10-1821294008202ND
2022-01-1922020010002ND
2022-01-1922020009702ND
2022-01-1922020009802ND
2022-01-1922020009902ND
2022-04-19O197209-THM-1ND
2022-04-19O197212-THM-1ND
2022-04-19O197210-THM-1ND
2022-04-19O197211-THM-1ND
2022-07-18O199948-THM-1ND
2022-07-18O199951-THM-1ND
2022-07-18O199950-THM-1ND
2022-07-18O199952-VOC-1ND
2022-07-18O199949-THM-1ND
2022-08-24O201066-VOC-1ND
2022-10-17O202895-THM-1ND
2022-10-17O202897-THM-1ND
2022-10-17O202896-THM-1ND
2022-10-17O202898-THM-1ND
2023-01-18O205238-THM-1ND
2023-01-18O205237-THM-1ND
2023-01-18O205239-THM-1ND
2023-01-18O205236-THM-1ND
2023-04-18O208024-THM-1ND
2023-04-18O208021-THM-1ND
2023-04-18O208023-THM-1ND
2023-04-18O208022-THM-1ND
2023-07-18O210873-THM-1ND
2023-07-18O210870-THM-1ND
2023-07-18O210871-THM-1ND
2023-07-18O210872-THM-1ND
2023-10-23O213064-THM-1ND
2023-10-23O213065-THM-1ND
2023-10-23O213066-THM-1ND
2023-10-23O213067-THM-1ND