Know Your Environment. Protect Your Health.

Bromate

Rayburn Country Municipal Utility District

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.

 

140

Samples

7

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.84 ppb245ND - 20.0 ppb
20192.43 ppb245ND - 16.0 ppb
20200.829 ppb244ND - 8.00 ppb
20210.625 ppb246ND - 2.50 ppb
2022ND220ND
2023ND220ND

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
2018-01-05N8A0212-0119.0 ppb
2018-01-05N8A0212-0220.0 ppb
2018-02-01N8B0068-0114.0 ppb
2018-02-01N8B0068-02ND
2018-03-01N8C0065-01ND
2018-03-01N8C0065-02ND
2018-04-04600-164108-1ND
2018-04-04600-164108-2ND
2018-05-03N8E0204-017.00 ppb
2018-05-03N8E0204-028.10 ppb
2018-06-07600-167580-1ND
2018-06-07600-167580-2ND
2018-07-03600-168931-1ND
2018-07-03600-168931-2ND
2018-08-02600-170779-1ND
2018-08-02600-170779-2ND
2018-09-06600-172306-1ND
2018-09-06600-172306-2ND
2018-10-04N8J0208-01ND
2018-10-04N8J0208-02ND
2018-11-02N8K0053-01ND
2018-11-02N8K0053-02ND
2018-12-06N8L0196-01ND
2018-12-06N8L0196-02ND
2019-01-03N9A2190-01ND
2019-01-03N9A2190-02ND
2019-02-07N9B0210-0111.0 ppb
2019-02-07N9B0210-02ND
2019-03-08N9C0220-01ND
2019-03-08N9C0220-02ND
2019-04-04600-183419-1ND
2019-04-04600-183419-2ND
2019-05-03600-185193-1ND
2019-05-08600-185193-2ND
2019-06-06N9F0214-01ND
2019-06-06N9F0214-02ND
2019-07-02N9G0203-01ND
2019-07-02N9G0203-02ND
2019-08-01600-189974-1ND
2019-08-01600-189974-2ND
2019-09-06600-191729-111.0 ppb
2019-09-06600-191729-26.20 ppb
2019-10-03N9J0200-0114.0 ppb
2019-10-03N9J0200-0216.0 ppb
2019-11-07600-195684-1ND
2019-11-07600-195684-2ND
2019-12-05600-197578-1ND
2019-12-05600-197578-2ND
2020-01-09600-199123-18.00 ppb
2020-01-09600-199123-26.90 ppb
2020-02-06600-200824-1ND
2020-02-06600-200824-2ND
2020-03-05600-202603-1ND
2020-03-05600-202603-2ND
2020-04-02600-203572-1ND
2020-04-02600-203572-2ND
2020-05-07N0E0190-01ND
2020-05-07N0E0190-02ND
2020-06-04600-206417-1ND
2020-06-04600-206417-2ND
2020-07-09600-208255-1ND
2020-07-09600-208255-2ND
2020-08-06600-209866-1ND
2020-08-06600-209866-2ND
2020-09-03600-211077-1ND
2020-09-03600-211077-2ND
2020-10-01600-212193-1ND
2020-10-01600-212193-2ND
2020-11-05N0K0142-01ND
2020-11-05N0K0142-02ND
2020-12-03680-192760-12.50 ppb
2020-12-03680-192760-22.50 ppb
2021-01-08680-194948-12.50 ppb
2021-01-08680-194948-22.50 ppb
2021-02-03680-194870-12.50 ppb
2021-02-03680-194870-22.50 ppb
2021-03-05680-196404-22.50 ppb
2021-03-056809196404-12.50 ppb
2021-04-08680-197796-1ND
2021-04-08680-197796-2ND
2021-05-07860-3689-1ND
2021-05-07860-3689-2ND
2021-06-03860-5692-1ND
2021-06-03860-5692-2ND
2021-07-01N160047-01ND
2021-07-01N160047-02ND
2021-08-05N1H0194-01ND
2021-08-05N1H0194-02ND
2021-09-02860-11606-1ND
2021-09-02860-11606-2ND
2021-10-07860-13540-1ND
2021-10-07860-13540-2ND
2021-11-04N1K0192-01ND
2021-11-04N1K0192-02ND
2021-12-02860-17169-1ND
2021-12-02860-17169-2ND
2022-01-06860-18928-1ND
2022-01-06860-18928-2ND
2022-02-03N2B0189-01ND
2022-02-03N2B0189-02ND
2022-03-02860-22420-1ND
2022-03-02860-22420-2ND
2022-04-07860-24977-1ND
2022-04-07860-24977-2ND
2022-05-05860-26519-1ND
2022-05-05860-26519-2ND
2022-06-02860-27453-1ND
2022-06-02860-27453-2ND
2022-07-07860-29469-1ND
2022-07-07860-29469-2ND
2022-08-04860-31256-1ND
2022-08-04860-31256-2ND
2022-09-01860-32785-1ND
2022-09-01860-32785-2ND
2022-11-04860-36510-1ND
2022-11-04860-36510-2ND
2022-12-01860-38634-1ND
2022-12-01860-38634-2ND
2023-01-05860-40876-1ND
2023-01-05860-40876-2ND
2023-02-02860-43006-1ND
2023-02-02860-43006-2ND
2023-03-02860-44516-1ND
2023-03-02860-44516-2ND
2023-04-05860-47000-1ND
2023-04-05860-47000-2ND
2023-05-04860-49188-1ND
2023-05-04860-49188-2ND
2023-06-01860-50801-1ND
2023-06-01860-50801-2ND
2023-07-06860-52897-1ND
2023-07-06860-52897-2ND
2023-08-03860-54755-1ND
2023-08-03860-54755-2ND
2023-10-052238049ND
2023-10-052238050ND
2023-11-022245689ND
2023-11-022245690ND
2023-12-072256735ND
2023-12-072256742ND