Know Your Environment. Protect Your Health.

Dibromoacetic acid

Town of Sunnyvale

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

39

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.10 ppb86ND - 7.30 ppb
20192.71 ppb881.70 ppb - 4.60 ppb
20202.85 ppb86ND - 6.40 ppb
20212.31 ppb85ND - 6.00 ppb
20222.80 ppb87ND - 5.00 ppb
20232.74 ppb87ND - 6.10 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
2018-01-04Q18003880022.50 ppb
2018-01-04Q1800388001ND
2018-05-08Q18184650033.90 ppb
2018-05-08Q1818465001ND
2018-07-24Q18292970014.30 ppb
2018-07-24Q18292970027.30 ppb
2018-10-17Q18414690014.90 ppb
2018-10-17Q18414690021.90 ppb
2019-01-08Q19008020012.20 ppb
2019-01-08Q19008020023.00 ppb
2019-04-24Q19167550012.00 ppb
2019-04-24Q19167550022.10 ppb
2019-07-22Q19467640023.30 ppb
2019-07-22Q19467640012.80 ppb
2019-10-01Q19707720011.70 ppb
2019-10-01Q19707720024.60 ppb
2020-01-08Q20008410011.20 ppb
2020-01-08Q20008410024.20 ppb
2020-04-29Q20167030012.70 ppb
2020-04-29Q20167030024.30 ppb
2020-07-13Q2027173001ND
2020-07-13Q20271730026.40 ppb
2020-10-06Q2039032001ND
2020-10-06Q20390320024.00 ppb
2021-01-06Q2100421002ND
2021-01-06Q21004210036.00 ppb
2021-04-22Q21103920012.70 ppb
2021-04-22Q21103920022.90 ppb
2021-08-02Q2119999001ND
2021-08-02Q21199990023.30 ppb
2021-10-28Q2130420001ND
2021-10-28Q21304200023.60 ppb
2022-02-17Q22059690011.50 ppb
2022-02-17Q22059690021.000 ppb
2022-04-21Q22122110015.00 ppb
2022-04-21Q22122110024.20 ppb
2022-09-13Q2227140002ND
2022-09-13Q22271400034.80 ppb
2022-10-04Q22297870011.10 ppb
2022-10-04Q22297870024.80 ppb
2023-01-26Q23037420011.70 ppb
2023-01-26Q23037420022.50 ppb
2023-05-08Q23173400013.10 ppb
2023-05-08Q23173400023.10 ppb
2023-08-02Q23314500021.60 ppb
2023-08-02Q23314500036.10 ppb
2023-10-17Q2344248001ND
2023-10-17Q23442480023.80 ppb