Know Your Environment. Protect Your Health.

Trichloroacetic acid

Sunbelt Fresh Water Supply District Woodland Oaks Subdivision

Trichloroacetic 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)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.36 ppb883.00 ppb - 6.50 ppb
20193.69 ppb881.60 ppb - 7.60 ppb
20201.60 ppb86ND - 2.90 ppb
20212.13 ppb85ND - 4.90 ppb
20221.10 ppb86ND - 2.10 ppb
20230.550 ppb83ND - 1.90 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 trichloroacetic 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 reproduction and child development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-29AE112213.40 ppb
2018-01-29AE112063.00 ppb
2018-04-10AE218525.50 ppb
2018-04-10AE218485.50 ppb
2018-07-11AE329506.50 ppb
2018-07-11AE329584.00 ppb
2018-10-12AE433983.40 ppb
2018-10-12AE433993.60 ppb
2019-01-30AE521577.60 ppb
2019-01-30AE521685.60 ppb
2019-04-15AE622623.50 ppb
2019-04-15AE622714.10 ppb
2019-07-02AE731232.70 ppb
2019-07-02AE731192.70 ppb
2019-12-06AE916301.70 ppb
2019-12-06AE916511.60 ppb
2020-02-19AE989601.60 ppb
2020-02-19AE989612.00 ppb
2020-05-20AF120842.80 ppb
2020-05-20AF12109ND
2020-08-18AF24028ND
2020-08-18AF240511.30 ppb
2020-10-14AF305602.20 ppb
2020-10-14AF305632.90 ppb
2021-03-08AF456581.10 ppb
2021-03-08AF45659ND
2021-04-29AF51873ND
2021-04-29AF51875ND
2021-08-18AF668404.50 ppb
2021-08-18AF668414.90 ppb
2021-10-14AF735372.60 ppb
2021-10-14AF735383.90 ppb
2022-01-26AF818652.10 ppb
2022-01-26AF818991.20 ppb
2022-05-26AF986501.000 ppb
2022-05-26AF986571.20 ppb
2022-08-22AG10206ND
2022-08-22AG10207ND
2022-12-15AG219291.90 ppb
2022-12-15AG219331.40 ppb
2023-02-15AG29047ND
2023-02-15AG290481.90 ppb
2023-05-03AG39098ND
2023-05-03AG39100ND
2023-08-30AG54650ND
2023-08-30AG54651ND
2023-11-27Q23507830011.30 ppb
2023-11-27Q23507830021.20 ppb