Know Your Environment. Protect Your Health.

Bromoform

City of Richland

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.678 ppb42ND - 1.38 ppb
2019ND40ND
2020ND40ND
2021ND40ND
20223.00 ppb441.08 ppb - 6.23 ppb
20231.98 ppb991.50 ppb - 2.85 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
2018-02-01Q1804162003ND
2018-04-18Q18159290041.38 ppb
2018-07-18Q18285960041.33 ppb
2018-10-26Q1843297003ND
2019-02-07Q1905809004ND
2019-04-30Q1917509004ND
2019-09-24Q1968206004ND
2019-11-20Q1977645004ND
2020-02-11Q2005441004ND
2020-06-18Q2024812004ND
2020-09-24Q2037865004ND
2020-10-20Q2041062004ND
2021-01-14Q2101050004ND
2021-04-05Q2108456004ND
2021-07-27Q2119608003ND
2021-10-14Q2128818004ND
2022-03-15Q22088880041.08 ppb
2022-05-04Q22134450042.68 ppb
2022-08-17Q22243430042.02 ppb
2022-11-09Q22338750046.23 ppb
2023-02-09Q23051920031.65 ppb
2023-02-09Q23051920041.75 ppb
2023-05-02Q23164790032.36 ppb
2023-05-02Q23164790041.83 ppb
2023-08-22Q23354210031.50 ppb
2023-08-22Q23354210041.54 ppb
2023-09-28Q23417820012.85 ppb
2023-11-02Q23470740011.56 ppb
2023-11-02Q23470740022.76 ppb