Know Your Environment. Protect Your Health.

Bromoform

Batts-lapile Water Association

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.

 

54

Samples

0

Samples exceeding legal limit (MCL)

43

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201824.0 ppb990.720 ppb - 54.2 ppb
201912.8 ppb991.73 ppb - 23.3 ppb
20201.86 ppb93ND - 7.30 ppb
20211.07 ppb95ND - 3.10 ppb
20226.07 ppb98ND - 22.0 ppb
202312.3 ppb991.91 ppb - 35.7 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
2018-02-27180600033010.720 ppb
2018-03-121807300210254.2 ppb
2018-03-121807300200218.8 ppb
2018-06-111816500460216.6 ppb
2018-06-111816500450210.4 ppb
2018-09-111825600380234.5 ppb
2018-09-111825600390226.1 ppb
2018-12-031834000410226.6 ppb
2018-12-031834000420228.0 ppb
2019-02-18190520047011.73 ppb
2019-03-12190730021028.20 ppb
2019-03-121907300220211.9 ppb
2019-06-171917100600216.1 ppb
2019-06-171917100590220.1 ppb
2019-09-091925400240220.4 ppb
2019-09-091925400250223.3 ppb
2019-12-03193390009026.30 ppb
2019-12-03193390010027.50 ppb
2020-02-1120043000501ND
2020-03-02200640013027.30 ppb
2020-03-02200640014026.40 ppb
2020-06-1020163011202ND
2020-06-1020163011302ND
2020-09-0720254000902ND
2020-09-07202540010023.00 ppb
2020-11-3020338002602ND
2020-11-3020338002702ND
2021-01-2721028014901ND
2021-03-1021070011202ND
2021-03-1021070011102ND
2021-06-08211610042021.000 ppb
2021-06-0821161004302ND
2021-09-08212520021022.40 ppb
2021-09-08212520022023.10 ppb
2021-12-07213420036021.80 ppb
2021-12-07213420035021.30 ppb
2022-02-25O195715-VOC-11.17 ppb
2022-03-02O195924-THM-11.69 ppb
2022-03-02O195925-THM-12.94 ppb
2022-06-07O198867-THM-15.11 ppb
2022-06-07O198866-THM-15.71 ppb
2022-09-07O201449-THM-122.0 ppb
2022-09-07O201448-THM-114.7 ppb
2022-12-06O204285-THM-11.33 ppb
2022-12-06O204284-THM-1ND
2023-01-24O205618-VOC-11.91 ppb
2023-03-07O206927-THM-12.70 ppb
2023-03-07O206928-THM-19.50 ppb
2023-06-14O210002-THM-15.12 ppb
2023-06-14O210001-THM-14.20 ppb
2023-09-06O211829-THM-126.1 ppb
2023-09-06O211828-THM-135.7 ppb
2023-12-05O214317-THM-112.9 ppb
2023-12-05O214316-THM-113.0 ppb