Know Your Environment. Protect Your Health.

Bromoform

Lacygne, City of

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.367 ppb31ND - 1.10 ppb
2019ND40ND
20200.500 ppb31ND - 1.50 ppb
2021ND40ND
20220.350 ppb41ND - 1.40 ppb
20230.543 ppb42ND - 1.60 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
2018-05-14970292ND
2018-08-1310246411.10 ppb
2018-12-031083863ND
2019-02-111119773ND
2019-05-131157889ND
2019-09-021233050ND
2019-11-111274435ND
2020-02-101324002ND
2020-05-111374380ND
2020-11-1616607591.50 ppb
2021-02-231778763ND
2021-05-101836514ND
2021-08-161918729ND
2021-11-152026351ND
2022-02-142193569ND
2022-05-162259391ND
2022-08-152333884ND
2022-11-1423974751.40 ppb
2023-02-132449377ND
2023-05-1525006300.570 ppb
2023-08-1425575051.60 ppb
2023-12-042619557ND