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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Monroe South County

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.

MORE ABOUT THIS CONTAMINANT

 

60

Samples

0

Samples exceeding legal limit (MCL)

39

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.00 ppb129ND - 5.00 ppb
20151.22 ppb4816ND - 4.90 ppb
20161.35 ppb4843ND - 3.30 ppb
20171.61 ppb4828ND - 5.90 ppb
20180.417 ppb249ND - 2.00 ppb
20191.83 ppb2421ND - 3.00 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-14LLF069344.00 ppb
2014-01-14LLF069312.00 ppb
2014-04-15LLF147812.00 ppb
2014-04-15LLF147795.00 ppb
2014-07-14LLF271682.00 ppb
2014-07-14LLF271703.00 ppb
2014-07-14LLF271713.00 ppb
2014-07-14LLF271692.00 ppb
2014-10-07LLF424361.000 ppb
2014-10-07LLF42437ND
2014-10-07LLF42438ND
2014-10-07LLF42439ND
2018-01-17LLH615531.000 ppb
2018-01-17LLH61556ND
2018-01-17LLH61554ND
2018-01-17LLH61557ND
2018-01-17LLH61555ND
2018-01-17LLH615521.000 ppb
2018-04-18LLH76065ND
2018-04-18LLH76064ND
2018-04-18LLH760682.00 ppb
2018-04-18LLH760661.000 ppb
2018-04-18LLH76067ND
2018-04-18LLH760631.000 ppb
2018-08-06LLH972921.000 ppb
2018-08-06LLH97296ND
2018-08-06LLH972931.000 ppb
2018-08-06LLH972941.000 ppb
2018-08-06LLH972951.000 ppb
2018-08-06LLH97297ND
2018-10-09LLI10719ND
2018-10-09LLI10722ND
2018-10-09LLI10723ND
2018-10-09LLI10718ND
2018-10-09LLI10721ND
2018-10-09LLI10720ND
2019-01-16LLI226531.000 ppb
2019-01-16LLI22648ND
2019-01-16LLI22649ND
2019-01-16LLI226521.000 ppb
2019-01-16LLI226511.000 ppb
2019-01-16LLI22650ND
2019-04-16LLI336562.00 ppb
2019-04-16LLI336573.00 ppb
2019-04-16LLI336613.00 ppb
2019-04-16LLI336603.00 ppb
2019-04-16LLI336592.00 ppb
2019-04-16LLI336583.00 ppb
2019-07-30LLI531082.00 ppb
2019-07-30LLI531122.00 ppb
2019-07-30LLI531092.00 ppb
2019-07-30LLI531133.00 ppb
2019-07-30LLI531102.00 ppb
2019-07-30LLI531112.00 ppb
2019-10-15LLI709742.00 ppb
2019-10-15LLI709712.00 ppb
2019-10-15LLI709732.00 ppb
2019-10-15LLI709752.00 ppb
2019-10-15LLI709722.00 ppb
2019-10-15LLI709702.00 ppb