Know Your Environment. Protect Your Health.

Dibromoacetic acid

Patterson Water System

Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

65

Samples

0

Samples exceeding legal limit (MCL)

56

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.11 ppb1614ND - 1.70 ppb
20190.656 ppb1612ND - 1.20 ppb
20201.000 ppb880.690 ppb - 1.30 ppb
20210.618 ppb96ND - 1.20 ppb
20221.85 ppb881.000 ppb - 3.60 ppb
20231.63 ppb881.20 ppb - 2.20 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.03 ppb

The EWG Health Guideline of 0.03 ppb for dibromoacetic acid was defined by 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 and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-11353681370010.920 ppb
2018-01-11353681370020.940 ppb
2018-01-11353681370020.940 ppb
2018-01-11353681370010.920 ppb
2018-04-10353853030021.70 ppb
2018-04-10353853030011.70 ppb
2018-04-10353853030021.70 ppb
2018-04-10353853030011.70 ppb
2018-07-02354018760011.40 ppb
2018-07-0235401876002ND
2018-07-02354018760011.40 ppb
2018-07-0235401876002ND
2018-10-11354240080011.40 ppb
2018-10-11354240080011.40 ppb
2018-10-11354240080020.850 ppb
2018-10-11354240080020.850 ppb
2019-01-10354417990011.20 ppb
2019-01-10354417990021.10 ppb
2019-01-10354417990011.20 ppb
2019-01-10354417990021.10 ppb
2019-04-03354596400011.000 ppb
2019-04-03354596400020.990 ppb
2019-04-03354596400011.000 ppb
2019-04-03354596400020.990 ppb
2019-07-11354817740020.510 ppb
2019-07-11354817740010.450 ppb
2019-07-11354817740010.450 ppb
2019-07-11354817740020.510 ppb
2019-10-0335502565001ND
2019-10-0335502565002ND
2019-10-0335502565002ND
2019-10-0335502565001ND
2020-01-17355251790020.710 ppb
2020-01-17355251790010.690 ppb
2020-04-02355413350010.990 ppb
2020-04-02355413350021.10 ppb
2020-07-02355604960011.20 ppb
2020-07-02355604960021.10 ppb
2020-10-01355820150011.30 ppb
2020-10-01355820150020.910 ppb
2021-01-08356034710011.10 ppb
2021-01-08356034710021.20 ppb
2021-03-18356205440010.710 ppb
2021-04-0935625103001ND
2021-04-0935625103002ND
2021-07-02356449180010.760 ppb
2021-07-02356449180020.880 ppb
2021-10-14356729470010.910 ppb
2021-10-1435672947002ND
2022-01-13356907750022.80 ppb
2022-01-13356907750013.60 ppb
2022-04-07357092100021.90 ppb
2022-04-07357092100011.90 ppb
2022-07-08357327000011.20 ppb
2022-07-08357327000021.20 ppb
2022-10-06357514510011.20 ppb
2022-10-06357514510021.000 ppb
2023-01-12357725330011.20 ppb
2023-01-12357725330022.20 ppb
2023-04-05357905250011.40 ppb
2023-04-05357905250021.20 ppb
2023-07-17358138200011.80 ppb
2023-07-17358138200021.80 ppb
2023-10-24358375240011.60 ppb
2023-10-24358375240021.80 ppb