Know Your Environment. Protect Your Health.

Bromoform

Waialua

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.437 ppb32ND - 0.760 ppb
20190.170 ppb31ND - 0.510 ppb
20200.670 ppb330.500 ppb - 0.960 ppb
20210.453 ppb32ND - 0.770 ppb
2022ND40ND
2023ND30ND

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
2018-01-29201801300813ND
2018-10-032018100505630.550 ppb
2018-10-152018101704970.760 ppb
2019-01-312019020102450.510 ppb
2019-10-04201910080583ND
2019-10-04201910080584ND
2020-03-040.500 ppb
2020-10-070.550 ppb
2020-10-070.960 ppb
2021-02-10ND
2021-10-040.590 ppb
2021-10-040.770 ppb
2022-09-07ND
2022-10-14ND
2022-10-14ND
2022-10-19ND
2023-04-21ND
2023-10-04ND
2023-10-06ND