Know Your Environment. Protect Your Health.

Bromoform

Tempe Water Supply Corporation 1

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.360 ppb51ND - 1.80 ppb
20190.620 ppb52ND - 2.10 ppb
20200.800 ppb52ND - 2.10 ppb
20210.800 ppb53ND - 2.00 ppb
20220.920 ppb52ND - 2.70 ppb
20231.14 ppb52ND - 3.00 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
2018-02-13AE13556ND
2018-02-13AE13592ND
2018-02-13AE13596ND
2018-02-13AE135541.80 ppb
2018-05-14AE26161ND
2019-02-26AE56004ND
2019-02-26AE560022.10 ppb
2019-02-26AE55996ND
2019-02-26AE559921.000 ppb
2019-06-13AE70589ND
2020-02-12AE98142ND
2020-02-12AE98144ND
2020-02-12AE981462.10 ppb
2020-02-12AE98190ND
2020-06-24AF167681.90 ppb
2021-01-27AF413512.00 ppb
2021-01-27AF41361ND
2021-01-27AF413591.000 ppb
2021-01-27AF41357ND
2021-08-25AF679221.000 ppb
2022-02-09AF84010ND
2022-02-09AF84012ND
2022-02-09AF840142.70 ppb
2022-02-09AF840161.90 ppb
2022-06-09AG00224ND
2023-02-16AG293453.00 ppb
2023-02-16AG29347ND
2023-02-16AG293572.70 ppb
2023-05-30AG42321ND
2023-05-30AG42342ND