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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Mesa Grande Water Supply Corporation

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND40ND
2016ND20ND
2017ND20ND
2018ND40ND
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
2014-12-03Q1458233004ND
2014-12-03Q1458233006ND
2015-10-22Q1541808003ND
2015-10-22Q1541808001ND
2015-10-22Q1541808012ND
2015-10-22Q1541808014ND
2016-11-14Q1649175001ND
2016-11-14Q1649175003ND
2017-12-14Q1766132002ND
2017-12-14Q1766132003ND
2018-10-01Q1838902010ND
2018-10-01Q1838902008ND
2018-10-01Q1838902014ND
2018-10-01Q1838902004ND
2019-09-23Q1967401003ND
2019-09-23Q1967401005ND