Know Your Environment. Protect Your Health.

Bromoform

Westbound Water Supply Corporation Cisco Source

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.

 

58

Samples

0

Samples exceeding legal limit (MCL)

43

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.410 ppb103ND - 1.90 ppb
20191.35 ppb105ND - 4.48 ppb
20202.95 ppb10101.14 ppb - 9.52 ppb
20211.75 ppb85ND - 4.55 ppb
20225.23 ppb10101.17 ppb - 18.2 ppb
20236.47 ppb10102.07 ppb - 9.35 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
2018-03-01Q1808718002ND
2018-03-01Q1808718001ND
2018-05-24Q18209910011.10 ppb
2018-05-24Q18209910021.10 ppb
2018-08-29Q1834718001ND
2018-08-29Q1834718002ND
2018-11-28Q1848312002ND
2018-11-28Q18483120041.90 ppb
2018-11-28Q1848312009ND
2018-11-28Q1848312010ND
2019-01-17Q1902815001ND
2019-01-17Q1902815002ND
2019-05-23Q19281630011.44 ppb
2019-05-23Q1928163002ND
2019-09-18Q19666150011.88 ppb
2019-09-18Q19666150021.83 ppb
2019-12-17Q1980357004ND
2019-12-17Q1980357006ND
2019-12-17Q19803570104.48 ppb
2019-12-17Q19803570113.88 ppb
2020-03-05Q20084430011.94 ppb
2020-03-05Q20084430021.95 ppb
2020-06-04Q20223590111.61 ppb
2020-06-04Q20223590121.51 ppb
2020-09-14Q20363440012.84 ppb
2020-09-14Q20363440021.62 ppb
2020-11-09Q20436310099.52 ppb
2020-11-09Q20436310031.14 ppb
2020-11-09Q20436310012.77 ppb
2020-11-09Q20436310024.59 ppb
2021-02-09Q2103863001ND
2021-02-09Q21038630031.94 ppb
2021-02-09Q2103863009ND
2021-02-09Q2103863010ND
2021-05-10Q21119010014.55 ppb
2021-05-10Q21119010021.79 ppb
2021-09-21Q21257920014.07 ppb
2021-09-21Q21257920021.62 ppb
2022-02-16Q22057650021.17 ppb
2022-02-16Q220576500418.2 ppb
2022-02-16Q22057650103.01 ppb
2022-02-16Q22057650112.95 ppb
2022-05-03Q22131140024.86 ppb
2022-05-03Q22131140015.90 ppb
2022-08-11Q22233400013.87 ppb
2022-08-11Q22233400023.62 ppb
2022-10-18Q22317450014.43 ppb
2022-10-18Q22317450024.31 ppb
2023-02-07Q23046710046.19 ppb
2023-02-07Q23046710052.64 ppb
2023-02-07Q23046710068.80 ppb
2023-04-18Q23142730017.12 ppb
2023-04-18Q23142730027.06 ppb
2023-07-12Q23273470042.07 ppb
2023-07-12Q23273470128.12 ppb
2023-07-12Q23273470139.35 ppb
2023-12-05Q23516440016.94 ppb
2023-12-05Q23516440026.41 ppb