Know Your Environment. Protect Your Health.

Bromoform

Cws-split Mountain Water System

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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.825 ppb84ND - 1.93 ppb
20190.425 ppb83ND - 1.47 ppb
2020ND80ND
20210.278 ppb83ND - 0.920 ppb
20220.538 ppb86ND - 1.20 ppb
20230.117 ppb61ND - 0.700 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
2018-03-06CA1500407_DST_902-2018030610201.80 ppb
2018-03-06CA1500407_DST_901-201803061050ND
2018-06-07CA1500407_DST_902-2018060714311.44 ppb
2018-06-07CA1500407_DST_901-201806071428ND
2018-09-05CA1500407_DST_902-2018090507541.93 ppb
2018-09-05CA1500407_DST_901-201809050754ND
2018-12-04CA1500407_DST_901-201812040920ND
2018-12-04CA1500407_DST_902-2018120409001.43 ppb
2019-03-05CA1500407_DST_901-201903050902ND
2019-03-05CA1500407_DST_902-201903050903ND
2019-06-03CA1500407_DST_902-2019060309200.700 ppb
2019-06-03CA1500407_DST_901-201906030920ND
2019-09-05CA1500407_DST_902-2019090510151.47 ppb
2019-09-05CA1500407_DST_901-201909051040ND
2019-12-04CA1500407_DST_902-2019120411241.23 ppb
2019-12-04CA1500407_DST_901-201912041111ND
2020-03-09CA1500407_DST_901-202003091342ND
2020-03-09CA1500407_DST_902-202003091300ND
2020-06-02CA1500407_DST_901-202006021340ND
2020-06-02CA1500407_DST_902-202006021325ND
2020-09-09CA1500407_DST_901-202009090932ND
2020-09-09CA1500407_DST_902-202009090917ND
2020-12-10CA1500407_DST_901-202012101414ND
2020-12-10CA1500407_DST_902-202012101402ND
2021-03-02CA1500407_DST_901-202103021317ND
2021-03-02CA1500407_DST_902-202103021157ND
2021-06-10CA1500407_DST_901-202106101240ND
2021-06-10CA1500407_DST_902-202106101229ND
2021-09-09CA1500407_DST_901-2021090911340.570 ppb
2021-09-09CA1500407_DST_902-2021090911260.920 ppb
2021-12-07CA1500407_DST_902-2021120714190.730 ppb
2021-12-07CA1500407_DST_901-202112071429ND
2022-03-08CA1500407_DST_902-2022030810340.800 ppb
2022-03-08CA1500407_DST_901-202203081046ND
2022-06-09CA1500407_DST_902-2022060910271.20 ppb
2022-06-09CA1500407_DST_901-2022060911220.600 ppb
2022-09-08CA1500407_DST_902-2022090808420.600 ppb
2022-09-08CA1500407_DST_901-2022090808560.600 ppb
2022-12-07CA1500407_DST_902-2022120711430.500 ppb
2022-12-07CA1500407_DST_901-202212071157ND
2023-03-08CA1500407_DST_902-202303081230ND
2023-03-08CA1500407_DST_901-202303081242ND
2023-06-08CA1500407_DST_902-2023060811520.700 ppb
2023-06-08CA1500407_DST_901-202306081223ND
2023-12-05CA1500407_DST_901-202312051419ND
2023-12-05CA1500407_DST_902-202312051407ND