Know Your Environment. Protect Your Health.

Trichloroacetic acid

Marion Water System

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.

 

64

Samples

0

Samples exceeding legal limit (MCL)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.41 ppb1612ND - 3.30 ppb
20191.01 ppb1612ND - 1.90 ppb
2020ND80ND
2021ND80ND
20220.740 ppb86ND - 1.30 ppb
20230.576 ppb84ND - 1.40 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
2018-03-01353778230013.30 ppb
2018-03-01353778230022.80 ppb
2018-03-01353778230022.80 ppb
2018-03-01353778230013.30 ppb
2018-06-19353998700021.10 ppb
2018-06-19353998700011.10 ppb
2018-06-19353998700021.10 ppb
2018-06-19353998700011.10 ppb
2018-09-1835419426001ND
2018-09-1835419426002ND
2018-09-1835419426001ND
2018-09-1835419426002ND
2018-12-17354384950011.80 ppb
2018-12-17354384950011.80 ppb
2018-12-17354384950021.20 ppb
2018-12-17354384950021.20 ppb
2019-03-1835456301001ND
2019-03-18354563010021.000 ppb
2019-03-1835456301001ND
2019-03-18354563010021.000 ppb
2019-06-11354755310011.90 ppb
2019-06-11354755310021.40 ppb
2019-06-11354755310011.90 ppb
2019-06-11354755310021.40 ppb
2019-09-06354956730021.40 ppb
2019-09-06354956730011.60 ppb
2019-09-06354956730011.60 ppb
2019-09-06354956730021.40 ppb
2019-12-0535516919001ND
2019-12-05355169190020.790 ppb
2019-12-05355169190020.790 ppb
2019-12-0535516919001ND
2020-03-1835538798002ND
2020-03-1835538798001ND
2020-06-1235556376001ND
2020-06-1235556376002ND
2020-09-1035577331001ND
2020-09-1035577331002ND
2020-12-1035598493001ND
2020-12-1035598493002ND
2021-03-1035618747001ND
2021-03-1035618747002ND
2021-06-0435638549001ND
2021-06-0435638549002ND
2021-09-0935663203001ND
2021-09-0935663203002ND
2021-12-0235681959001ND
2021-12-0235681959002ND
2022-03-04357014580021.30 ppb
2022-03-04357014580011.20 ppb
2022-06-20357272120020.640 ppb
2022-06-20357272120010.980 ppb
2022-09-21357492100010.920 ppb
2022-09-21357492100020.880 ppb
2022-12-1535767895001ND
2022-12-1535767895002ND
2023-03-2335788120001ND
2023-03-23357881200020.710 ppb
2023-06-27358099750011.20 ppb
2023-06-2735809975002ND
2023-09-2735830991001ND
2023-09-2735830991002ND
2023-12-14358497030011.30 ppb
2023-12-14358497030021.40 ppb