Know Your Environment. Protect Your Health.

Bromoform

Town of Sunset 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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
20200.420 ppb21ND - 0.840 ppb
20210.750 ppb21ND - 1.50 ppb
20220.290 ppb21ND - 0.580 ppb
20230.800 ppb21ND - 1.60 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
2018-05-1835393236001ND
2018-05-1835393236002ND
2018-05-1835393236001ND
2018-05-1835393236002ND
2019-05-2335470947001ND
2019-05-2335470947002ND
2019-05-2335470947001ND
2019-05-2335470947002ND
2020-05-0835548861001ND
2020-05-08355488610020.840 ppb
2021-05-0635631397001ND
2021-05-06356313970021.50 ppb
2022-05-1735719216001ND
2022-05-17357192160020.580 ppb
2023-05-0535797737001ND
2023-05-05357977370021.60 ppb