Know Your Environment. Protect Your Health.

Trichloroacetic acid

Marygold Mutual Water Company

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.

 

34

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.125 ppb81ND - 1.000 ppb
20190.163 ppb81ND - 1.30 ppb
20200.738 ppb82ND - 4.10 ppb
2021ND40ND
2022ND20ND
20230.250 ppb41ND - 1.000 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
2018-03-21CA3610028_DST_602-201803211230ND
2018-03-21CA3610028_DST_601-201803211224ND
2018-06-26CA3610028_DST_602-201806261004ND
2018-06-26CA3610028_DST_601-201806261018ND
2018-09-12CA3610028_DST_602-2018091211451.000 ppb
2018-09-12CA3610028_DST_601-201809121138ND
2018-12-19CA3610028_DST_602-201812191034ND
2018-12-19CA3610028_DST_601-201812191050ND
2019-03-13CA3610028_DST_601-201903131024ND
2019-03-13CA3610028_DST_602-2019031310441.30 ppb
2019-06-19CA3610028_DST_601-201906191121ND
2019-06-19CA3610028_DST_602-201906191130ND
2019-09-04CA3610028_DST_601-201909041135ND
2019-09-04CA3610028_DST_602-201909041145ND
2019-12-04CA3610028_DST_601-201912040934ND
2019-12-04CA3610028_DST_602-201912040955ND
2020-03-04CA3610028_DST_602-2020030408114.10 ppb
2020-03-04CA3610028_DST_601-202003040740ND
2020-06-03CA3610028_DST_602-2020060309001.80 ppb
2020-06-03CA3610028_DST_601-202006030912ND
2020-09-02CA3610028_DST_602-202009020754ND
2020-09-02CA3610028_DST_601-202009020735ND
2020-12-09CA3610028_DST_602-202012090741ND
2020-12-09CA3610028_DST_601-202012090730ND
2021-03-03CA3610028_DST_601-202103030732ND
2021-03-03CA3610028_DST_602-202103030802ND
2021-05-26CA3610028_DST_601-202105260735ND
2021-05-26CA3610028_DST_602-202105260812ND
2022-03-02CA3610028_DST_602-202203020742ND
2022-03-02CA3610028_DST_601-202203020720ND
2023-03-01CA3610028_DST_601-202303010615ND
2023-03-01CA3610028_DST_602-2023030106251.000 ppb
2023-08-09CA3610028_DST_601-202308090640ND
2023-08-09CA3610028_DST_602-202308090630ND