Know Your Environment. Protect Your Health.

Monobromoacetic acid

Thompson Heights Water System

Monobromoacetic 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)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.64 ppb883.20 ppb - 10.1 ppb
20191.41 ppb86ND - 3.10 ppb
2020ND80ND
20210.238 ppb81ND - 1.90 ppb
20220.300 ppb82ND - 1.20 ppb
20232.79 ppb882.00 ppb - 3.80 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 25 ppb

The EWG Health Guideline of 25 ppb for monobromoacetic 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 change to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-13Q18105210023.20 ppb
2018-03-13Q18105210015.10 ppb
2018-05-15Q18199540033.30 ppb
2018-05-15Q18199540023.20 ppb
2018-08-30Q18350610015.10 ppb
2018-08-30Q18350610023.70 ppb
2018-12-04Q18497300013.40 ppb
2018-12-04Q184973000210.1 ppb
2019-02-25Q19079590011.70 ppb
2019-02-25Q19079590031.40 ppb
2019-05-07Q19222740013.10 ppb
2019-05-07Q19222740021.10 ppb
2019-09-11Q19642520022.00 ppb
2019-09-11Q19642520012.00 ppb
2019-11-04Q1975057001ND
2019-11-04Q1975057002ND
2020-01-29Q2003557001ND
2020-01-29Q2003557002ND
2020-04-15Q2014956001ND
2020-04-15Q2014956002ND
2020-07-23Q2028995001ND
2020-07-23Q2028995002ND
2020-12-16Q2049857001ND
2020-12-16Q2049857002ND
2021-03-22Q2107286001ND
2021-03-22Q2107286002ND
2021-06-08Q2115162001ND
2021-06-08Q2115162002ND
2021-09-15Q2125460001ND
2021-09-15Q21254600021.90 ppb
2021-11-17Q2132248001ND
2021-11-17Q2132248002ND
2022-02-16Q2205735002ND
2022-02-16Q2205735003ND
2022-05-17Q2214543001ND
2022-05-17Q2214543002ND
2022-08-17Q2224525001ND
2022-08-17Q2224525002ND
2022-11-09Q22338940011.20 ppb
2022-11-09Q22338940021.20 ppb
2023-01-25Q23035670013.80 ppb
2023-01-25Q23035670023.50 ppb
2023-06-14Q23226420012.00 ppb
2023-06-14Q23226420022.10 ppb
2023-09-06Q23384450022.40 ppb
2023-09-06Q23384450032.20 ppb
2023-11-01Q23468350013.20 ppb
2023-11-01Q23468350023.10 ppb