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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Holden Water Division, DPW

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.

 

53

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND120ND
2016ND90ND
2017ND80ND
2018ND80ND
2019ND80ND

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 Result
2014-02-18ND
2014-05-20ND
2014-05-20ND
2014-05-20ND
2014-05-20ND
2014-05-20ND
2014-08-20ND
2014-11-19ND
2015-02-18ND
2015-02-24ND
2015-02-25ND
2015-02-25ND
2015-05-19ND
2015-05-19ND
2015-05-19ND
2015-05-19ND
2015-05-19ND
2015-05-27ND
2015-08-18ND
2015-11-17ND
2016-02-02ND
2016-02-16ND
2016-05-17ND
2016-05-17ND
2016-05-17ND
2016-05-17ND
2016-05-17ND
2016-09-06ND
2016-11-15ND
2017-02-21ND
2017-05-16ND
2017-05-16ND
2017-05-16ND
2017-05-16ND
2017-05-16ND
2017-08-15ND
2017-11-21ND
2018-02-20ND
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-08-21ND
2018-11-20ND
2019-02-19ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-08-23ND
2019-11-19ND