Know Your Environment. Protect Your Health.

Bromate

Calera Canyon Heights Homeowners Association

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND110ND
2019ND30ND
2020ND10ND
2021N/A00N/A
2022ND100ND
20230.1000 ppb121ND - 1.20 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
2018-01-24CA2700523_DST_801-201801241230ND
2018-02-28CA2700523_DST_801-201802281130ND
2018-03-25CA2700523_DST_801-201803251415ND
2018-04-26CA2700523_DST_801-201804260600ND
2018-05-16CA2700523_DST_801-201805161445ND
2018-06-19CA2700523_DST_801-201806191145ND
2018-07-31CA2700523_DST_801-201807311545ND
2018-08-08CA2700523_DST_801-201808081340ND
2018-09-27CA2700523_DST_801-201809271432ND
2018-10-01CA2700523_DST_801-201810011433ND
2018-11-07CA2700523_DST_801-201811070910ND
2019-06-17CA2700523_DST_801-201906171645ND
2019-09-16CA2700523_DST_801-201909161645ND
2019-11-21CA2700523_DST_801-201911210700ND
2020-06-16CA2700523_DST_801-202006161745ND
2022-03-15CA2700523_DST_801-202203151145ND
2022-04-27CA2700523_DST_801-202204270815ND
2022-05-09CA2700523_DST_801-202205090930ND
2022-06-21CA2700523_DST_801-202206210730ND
2022-07-26CA2700523_DST_801-202207260800ND
2022-08-09CA2700523_DST_801-202208090745ND
2022-09-26CA2700523_DST_801-202209260745ND
2022-10-17CA2700523_DST_801-202210170800ND
2022-11-21CA2700523_DST_801-202211210700ND
2022-12-22CA2700523_DST_801-202212221000ND
2023-01-18CA2700523_DST_801-202301180900ND
2023-02-22CA2700523_DST_801-202302221045ND
2023-03-13CA2700523_DST_801-202303130730ND
2023-04-10CA2700523_DST_801-2023041008301.20 ppb
2023-05-24CA2700523_DST_801-202305241400ND
2023-06-28CA2700523_DST_801-202306280700ND
2023-07-06CA2700523_DST_801-202307060830ND
2023-08-03CA2700523_DST_801-202308030930ND
2023-09-12CA2700523_DST_801-202309120900ND
2023-10-17CA2700523_DST_801-202310171040ND
2023-11-16CA2700523_DST_801-202311161000ND
2023-12-19CA2700523_DST_801-202312190945ND