Know Your Environment. Protect Your Health.

Bromoform

Chatfield Water Supply Corporation

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.05 ppb86ND - 1.83 ppb
2019ND80ND
2020ND80ND
20210.133 ppb81ND - 1.06 ppb
20220.818 ppb83ND - 3.41 ppb
20230.580 ppb83ND - 1.86 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
2018-02-08Q1805372002ND
2018-02-08Q1805372001ND
2018-04-19Q18161160031.20 ppb
2018-04-19Q18161160021.35 ppb
2018-07-19Q18287950011.16 ppb
2018-07-19Q18287950021.26 ppb
2018-10-25Q18427770011.83 ppb
2018-10-25Q18427770021.63 ppb
2019-02-26Q1908363002ND
2019-02-26Q1908363003ND
2019-05-15Q1925370001ND
2019-05-15Q1925370002ND
2019-07-31Q1949400002ND
2019-07-31Q1949400001ND
2019-10-17Q1972993001ND
2019-10-17Q1972993002ND
2020-01-29Q2003554001ND
2020-01-29Q2003554002ND
2020-04-14Q2014702002ND
2020-04-14Q2014702003ND
2020-08-04Q2030368001ND
2020-08-04Q2030368002ND
2020-10-20Q2041060001ND
2020-10-20Q2041060002ND
2021-01-21Q2101526001ND
2021-01-21Q2101526002ND
2021-04-05Q2108462001ND
2021-04-05Q2108462002ND
2021-07-14Q2118454001ND
2021-07-14Q2118454002ND
2021-10-04Q21271890011.06 ppb
2021-10-04Q2127189002ND
2022-03-15Q2208899001ND
2022-03-15Q2208899002ND
2022-05-03Q22134590011.81 ppb
2022-05-03Q2213459002ND
2022-08-17Q22243480011.32 ppb
2022-08-17Q2224348002ND
2022-11-09Q22338720023.41 ppb
2022-11-09Q2233872003ND
2023-01-26Q23037620011.86 ppb
2023-01-26Q2303762002ND
2023-05-02Q23164820011.60 ppb
2023-05-02Q2316482002ND
2023-07-31Q2330842002ND
2023-07-31Q23308420031.18 ppb
2023-10-04Q2342709001ND
2023-10-04Q2342709002ND