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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of Chico

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND60ND
2016ND30ND
2017ND30ND
2018ND60ND
2019ND30ND

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
2014-08-25Q1438988015ND
2014-08-25Q1438988013ND
2014-08-25Q1438988011ND
2015-03-18Q1510146021ND
2015-03-18Q1510146020ND
2015-03-18Q1510146012ND
2015-03-18Q1510146005ND
2015-03-18Q1510146003ND
2015-03-18Q1510146001ND
2016-12-06Q1653274002ND
2016-12-06Q1653274005ND
2016-12-06Q1653274003ND
2017-02-27Q1708321013ND
2017-02-27Q1708321017ND
2017-02-27Q1708321016ND
2018-12-13Q1851676020ND
2018-12-13Q1851676018ND
2018-12-13Q1851676016ND
2018-12-13Q1851676006ND
2018-12-13Q1851676003ND
2018-12-13Q1851676001ND
2019-01-08Q1900653010ND
2019-01-08Q1900653006ND
2019-01-08Q1900653001ND