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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Monrovia Water Department

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

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND50ND
2017N/A00N/A
2018ND210ND
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
2014-07-094G09063-01AND
2015-01-205A20004-01AND
2016-10-189588-002-0915ND
2016-10-189588-008-0850ND
2016-10-189588-003-0900ND
2016-10-189588-005-0905ND
2016-12-199588-004-0905ND
2018-01-109588-002-0910ND
2018-01-109588-005-0845ND
2018-01-109588-004-0855ND
2018-01-109588-003-0905ND
2018-03-089588-008-0905ND
2018-04-109588-008-0920ND
2018-04-119588-002-0925ND
2018-04-119588-004-0915ND
2018-04-119588-003-0935ND
2018-04-119588-005-0905ND
2018-04-119588-008-0855ND
2018-07-129588-003-0915ND
2018-07-129588-002-0950ND
2018-07-129588-008-0905ND
2018-07-129588-005-0925ND
2018-07-129588-004-0935ND
2018-10-039588-002-0925ND
2018-10-039588-005-0935ND
2018-10-039588-004-0945ND
2018-10-039588-008-0905ND
2018-10-039588-003-0910ND