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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Nob Hill Water Association

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND80ND
2016ND10ND
2017N/A00N/A
2018ND10ND
2019N/A00N/A

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
2014-04-21WA97-SE1-14-0709ND
2014-04-21WA97-SE1-14-0709ND
2014-04-21WA97-SE1-14-0709ND
2014-09-09WA97-SE1-14-1795ND
2014-09-09WA97-SE1-14-1795ND
2015-05-14WA97-SE2-15-0960ND
2015-05-14WA97-SE1-15-0960ND
2015-06-2375105ND
2015-06-2375103ND
2015-07-1475167ND
2015-09-0175402ND
2015-10-06WA97-SE2-15-2166ND
2015-10-06WA97-SE2-15-2166ND
2016-07-12ND
2018-06-06ND