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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

El Dorado Waterworks

1,2,3-Trichloropropane is a potent carcinogen that contaminates drinking water in agricultural regions where it was historically used as soil fumigant. Click here to read more about carcinogenic VOCs.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND30ND
2016ND10ND
2017ND20ND
2018ND10ND
2019ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0007 ppb

The EWG Health Guideline of 0.0007 ppb for 1,2,3-trichloropropane was defined 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. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-2914121002702ND
2014-10-15O142890038ND
2014-10-15O142890037ND
2014-11-1214317002902ND
2015-04-15O151060110ND
2015-04-15O151060109ND
2015-05-2715148009202ND
2016-04-1116105004602ND
2017-06-1317166001602ND
2017-10-1117285000502ND
2018-04-3018123005702ND
2019-05-1319136000402ND