Know Your Environment. Protect Your Health.

Bromoform

Hollands Quarter 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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.850 ppb21ND - 1.70 ppb
2019ND20ND
2020ND20ND
2021ND20ND
20220.257 ppb61ND - 1.54 ppb
20230.181 ppb91ND - 1.63 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
2018-08-13Q1832186004ND
2018-08-13Q18321860021.70 ppb
2019-08-26Q1959265003ND
2019-08-26Q1959265007ND
2020-09-22Q2037529002ND
2020-12-02Q2048012001ND
2021-08-10Q2121211004ND
2021-08-10Q2121211011ND
2022-06-21Q2217153001ND
2022-06-21Q2217153004ND
2022-09-13Q2227124002ND
2022-09-13Q2227124001ND
2022-11-14Q2234024001ND
2022-11-14Q22340240021.54 ppb
2023-02-16Q2306541001ND
2023-02-16Q2306541002ND
2023-05-03Q2316804001ND
2023-05-03Q23168040021.63 ppb
2023-07-27Q2330272001ND
2023-07-27Q2330272006ND
2023-07-27Q2330272007ND
2023-10-17Q2344256001ND
2023-10-17Q2344256002ND