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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of Columbia

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND60ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-01-15AD34536ND
2014-01-15AD34535ND
2014-07-14201407160557AMND
2014-07-14201407160691AMND
2014-10-14201410160419AMND
2014-10-14201410160417AMND
2015-01-13201501150661AMND
2015-01-13201501150478AMND
2015-01-15AD50348ND
2015-01-15AD50347ND
2015-04-14201504160399AMND
2015-04-14201504160290AMND
2016-01-13AD69192ND
2016-01-13AD69191ND
2017-03-07AD90717ND
2017-08-02AD98392ND
2018-03-12AE09073ND
2018-07-16AE15003ND
2019-01-08AE23570ND
2019-07-16AE33661ND