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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Westchester County Water District #1

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015N/A00N/A
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
2014-12-01AQ24568POCND
2016-09-06AS19150 POC WD#1ND
2016-09-06AG19152 POC WD#1ND
2017-11-13AT23822POCSND
2017-11-13AT23824POCSND
2018-09-24AU20757WD1 POCSND
2018-09-24AU20758WD1 POCSND
2019-11-12AV23849D POCSND
2019-11-12AV23850D POCSND