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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Cypress Valley Water Supply Corporation Plant 2

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND20ND
2016ND10ND
2017ND10ND
2018ND20ND
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
2015-07-06Q1525247005ND
2015-07-06Q1525247004ND
2016-02-18Q1607246002ND
2017-02-27Q1708190002ND
2018-11-06Q1844293001ND
2018-11-06Q1844293007ND
2019-03-12Q1910194002ND