Know Your Environment. Protect Your Health.

Bromoform

Southwestern Pennsylvania 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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND160ND
20190.248 ppb165ND - 0.986 ppb
20200.0925 ppb161ND - 1.48 ppb
20210.0878 ppb162ND - 0.786 ppb
2022ND160ND
20230.500 ppb165ND - 1.80 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
2018-02-1302181806ND
2018-02-1302181805ND
2018-02-1302181803ND
2018-02-1302181804ND
2018-05-1518E1317-03ND
2018-05-1518E1317-01ND
2018-05-1518E1317-04ND
2018-05-1518E1317-02ND
2018-08-1418H0492-03ND
2018-08-1418H0492-01ND
2018-08-1418H0492-04ND
2018-08-1418H0492-02ND
2018-11-1318K1412-02ND
2018-11-1318K1412-03ND
2018-11-1318K1412-04ND
2018-11-1318K1412-01ND
2019-02-1219B0644-02ND
2019-02-1219B0644-04ND
2019-02-1219B0644-03ND
2019-02-1219B0644-01ND
2019-05-1419E0256-03ND
2019-05-1419E0256-02ND
2019-05-1419E0256-01ND
2019-05-1419E0256-04ND
2019-08-1319H0286-010.986 ppb
2019-08-1319H0286-040.829 ppb
2019-08-1319H0286-030.918 ppb
2019-08-1319H0286-020.706 ppb
2019-11-1219K0283-04ND
2019-11-1219K0283-02ND
2019-11-1319K0283-03ND
2019-11-1419K1869-010.522 ppb
2020-02-11ND
2020-02-11ND
2020-02-11ND
2020-02-11ND
2020-05-12ND
2020-05-12ND
2020-05-12ND
2020-05-12ND
2020-08-11ND
2020-08-11ND
2020-08-12ND
2020-08-12ND
2020-11-13ND
2020-11-13ND
2020-11-13ND
2020-11-131.48 ppb
2021-02-11ND
2021-02-11ND
2021-02-11ND
2021-02-11ND
2021-05-14ND
2021-05-14ND
2021-05-14ND
2021-05-14ND
2021-08-13ND
2021-08-13ND
2021-08-130.618 ppb
2021-08-130.786 ppb
2021-11-16ND
2021-11-16ND
2021-11-16ND
2021-11-16ND
2022-02-14ND
2022-02-14ND
2022-02-15ND
2022-02-15ND
2022-05-10ND
2022-05-10ND
2022-05-10ND
2022-05-10ND
2022-08-12ND
2022-08-12ND
2022-08-12ND
2022-08-12ND
2022-11-10ND
2022-11-10ND
2022-11-10ND
2022-11-10ND
2023-02-14ND
2023-02-14ND
2023-02-14ND
2023-02-14ND
2023-05-11ND
2023-05-11ND
2023-05-11ND
2023-05-11ND
2023-08-101.60 ppb
2023-08-101.80 ppb
2023-08-101.70 ppb
2023-08-101.60 ppb
2023-11-141.30 ppb
2023-11-14ND
2023-11-14ND
2023-11-14ND