Know Your Environment. Protect Your Health.

Bromate

Calif State Polytechnical Univ - Pomona

Bromate is a carcinogenic disinfection byproduct formed when source waters containing bromide are treated with ozonation or sodium hypochlorite. Studies of laboratory animals show that bromate damages DNA and causes cancer in multiple organs. Click here to read more about disinfection byproducts.

 

64

Samples

1

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND120ND
2019ND80ND
2020ND120ND
2021ND80ND
2022ND120ND
20231.59 ppb122ND - 13.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for bromate was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 10 ppb

The legal limit for bromate, established in 1998, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to bromate exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-20CA1910022_DST_802-201803201035ND
2018-03-20CA1910022_DST_803-201803200930ND
2018-03-20CA1910022_DST_800-201803201010ND
2018-03-20CA1910022_DST_801-201803200945ND
2018-09-18CA1910022_DST_800-201809181105ND
2018-09-18CA1910022_DST_801-201809181030ND
2018-09-18CA1910022_DST_802-201809181135ND
2018-09-18CA1910022_DST_803-201809181000ND
2018-12-20CA1910022_DST_803-201812201030ND
2018-12-20CA1910022_DST_801-201812201024ND
2018-12-20CA1910022_DST_802-201812201044ND
2018-12-20CA1910022_DST_800-201812201050ND
2019-09-17CA1910022_DST_801-201909171115ND
2019-09-17CA1910022_DST_800-201909171215ND
2019-09-17CA1910022_DST_802-201909171235ND
2019-09-17CA1910022_DST_803-201909171130ND
2019-12-17CA1910022_DST_802-201912171225ND
2019-12-17CA1910022_DST_800-201912171205ND
2019-12-17CA1910022_DST_803-201912171035ND
2019-12-17CA1910022_DST_801-201912171020ND
2020-06-16CA1910022_DST_800-202006161115ND
2020-06-16CA1910022_DST_802-202006161125ND
2020-06-16CA1910022_DST_801-202006160930ND
2020-06-16CA1910022_DST_803-202006161025ND
2020-09-15CA1910022_DST_801-202009151015ND
2020-09-15CA1910022_DST_802-202009151110ND
2020-09-15CA1910022_DST_800-202009151050ND
2020-09-15CA1910022_DST_803-202009150950ND
2020-12-17CA1910022_DST_802-202012171055ND
2020-12-17CA1910022_DST_803-202012171040ND
2020-12-17CA1910022_DST_800-202012171050ND
2020-12-17CA1910022_DST_801-202012171030ND
2021-03-16CA1910022_DST_803-202103160921ND
2021-03-16CA1910022_DST_800-202103161011ND
2021-03-16CA1910022_DST_802-202103161035ND
2021-03-16CA1910022_DST_801-202103160931ND
2021-09-21CA1910022_DST_801-202109211222ND
2021-09-21CA1910022_DST_802-202109211118ND
2021-09-21CA1910022_DST_800-202109211040ND
2021-09-21CA1910022_DST_803-202109211231ND
2022-03-15CA1910022_DST_800-202203151140ND
2022-03-15CA1910022_DST_801-202203151025ND
2022-03-15CA1910022_DST_802-202203151200ND
2022-03-15CA1910022_DST_803-202203151035ND
2022-06-21CA1910022_DST_803-202206211025ND
2022-06-21CA1910022_DST_801-202206211035ND
2022-06-21CA1910022_DST_800-202206211120ND
2022-06-21CA1910022_DST_802-202206211140ND
2022-09-20CA1910022_DST_800-202209201100ND
2022-09-20CA1910022_DST_803-202209201030ND
2022-09-20CA1910022_DST_802-202209201115ND
2022-09-20CA1910022_DST_801-202209201010ND
2023-03-21CA1910022_DST_801-2023032110306.10 ppb
2023-03-21CA1910022_DST_802-202303211132ND
2023-03-21CA1910022_DST_803-202303211228ND
2023-03-21CA1910022_DST_800-20230321111013.0 ppb
2023-06-20CA1910022_DST_800-202306201200ND
2023-06-20CA1910022_DST_801-202306201130ND
2023-06-20CA1910022_DST_802-202306201225ND
2023-06-20CA1910022_DST_803-202306201110ND
2023-09-26CA1910022_DST_803-202309261115ND
2023-09-26CA1910022_DST_800-202309261250ND
2023-09-26CA1910022_DST_802-202309261304ND
2023-09-26CA1910022_DST_801-202309261205ND