Know Your Environment. Protect Your Health.

Bromoform

Pottstown Borough Water Authority

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.

 

98

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.272 ppb185ND - 1.40 ppb
20190.163 ppb164ND - 0.700 ppb
2020ND160ND
2021ND160ND
20220.0375 ppb161ND - 0.600 ppb
20230.0313 ppb161ND - 0.500 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
2018-01-168001102-03ND
2018-01-168001102-01ND
2018-01-168001102-04ND
2018-01-168001102-02ND
2018-04-188010311-01ND
2018-04-188010312-03ND
2018-04-188010312-04ND
2018-04-188010312-01ND
2018-04-188010312-020.600 ppb
2018-07-188020158-021.40 ppb
2018-07-188020158-040.800 ppb
2018-07-188020158-031.000 ppb
2018-07-188020158-011.10 ppb
2018-09-178027815-01ND
2018-10-168029709-02ND
2018-10-168029709-04ND
2018-10-168029709-01ND
2018-10-168029709-03ND
2019-01-159002101-02ND
2019-01-159002101-01ND
2019-01-159002101-03ND
2019-01-159002101-04ND
2019-04-179011569-03ND
2019-04-179011569-02ND
2019-04-179011569-01ND
2019-04-179011569-04ND
2019-07-159024038-02ND
2019-07-159024038-03ND
2019-07-159024038-01ND
2019-07-159024038-04ND
2019-10-159035859-010.700 ppb
2019-10-159035859-030.700 ppb
2019-10-159035859-020.500 ppb
2019-10-159035859-040.700 ppb
2020-01-21ND
2020-01-21ND
2020-01-21ND
2020-01-21ND
2020-04-20ND
2020-04-20ND
2020-04-20ND
2020-04-20ND
2020-07-21ND
2020-07-21ND
2020-07-21ND
2020-07-21ND
2020-10-22ND
2020-10-22ND
2020-10-22ND
2020-10-22ND
2021-01-19ND
2021-01-19ND
2021-01-19ND
2021-01-19ND
2021-04-20ND
2021-04-20ND
2021-04-20ND
2021-04-20ND
2021-07-20ND
2021-07-20ND
2021-07-20ND
2021-07-20ND
2021-10-19ND
2021-10-19ND
2021-10-19ND
2021-10-19ND
2022-01-19ND
2022-01-19ND
2022-01-19ND
2022-01-19ND
2022-04-19ND
2022-04-19ND
2022-04-19ND
2022-04-19ND
2022-07-190.600 ppb
2022-07-19ND
2022-07-19ND
2022-07-19ND
2022-10-19ND
2022-10-19ND
2022-10-19ND
2022-10-19ND
2023-01-18ND
2023-01-18ND
2023-01-18ND
2023-01-18ND
2023-04-18ND
2023-04-18ND
2023-04-180.500 ppb
2023-04-18ND
2023-07-17ND
2023-07-17ND
2023-07-17ND
2023-07-17ND
2023-10-17ND
2023-10-17ND
2023-10-17ND
2023-10-17ND