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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of San Clemente

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.

MORE ABOUT THIS CONTAMINANT

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND40ND
2014ND60ND
2015ND30ND
2016ND20ND
2017ND20ND
2018ND100ND
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
2013-09-113I11048-01AND
2013-09-113I11048-03AND
2013-12-093L09134-01AND
2013-12-093L09134-03AND
2014-03-104C10057-01AND
2014-03-104C10057-03AND
2014-03-121805-021-0925ND
2014-04-091805-004-1010ND
2014-06-184F18051-03AND
2014-06-184F18051-01AND
2015-03-111805-021-1105ND
2015-07-295G29085-01AND
2015-12-025L02070-01AND
2016-03-111805-021-1045ND
2016-05-171805-004-1040ND
2017-03-081805-021-1120ND
2017-05-011805-004-0000ND
2018-01-109588-021-0830ND
2018-01-109588-004-0822ND
2018-03-071805-021-0845ND
2018-04-029588-021-1442ND
2018-04-029588-004-1454ND
2018-05-081805-004-0955ND
2018-07-109588-021-1010ND
2018-07-109588-004-1020ND
2018-10-029588-021-1310ND
2018-10-029588-004-1325ND
2019-01-081805-021-1103ND
2019-05-081805-004-0935ND