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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of Sonoma

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

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND70ND
2014ND70ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND200ND
2019ND10ND

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
2013-07-18201307190440AMND
2013-07-18201307190442AMND
2013-07-18201307190436AMND
2013-07-18201307190438AMND
2013-07-18201307190448AMND
2013-07-18201307190444AMND
2013-07-18201307190446AMND
2014-01-07201401080309AMND
2014-01-07201401080305AMND
2014-01-07201401080307AMND
2014-01-07201401080315AMND
2014-01-07201401080317AMND
2014-01-07201401080311AMND
2014-01-07201401080313AMND
2018-03-275806-023-0830ND
2018-03-275806-002-0753ND
2018-03-275806-004-0910ND
2018-03-295806-001-0835ND
2018-03-295806-003-0930ND
2018-06-145806-003-0835ND
2018-06-145806-001-1100ND
2018-06-145806-002-0815ND
2018-06-145806-004-1125ND
2018-06-145806-023-0905ND
2018-09-055806-004-0915ND
2018-09-055806-001-0835ND
2018-09-105806-002-0755ND
2018-09-175806-003-0905ND
2018-09-175806-023-0850ND
2018-10-245806-003-1050ND
2018-10-245806-023-0925ND
2018-10-245806-002-0750ND
2018-10-245806-001-0827ND
2018-10-245806-004-1015ND
2019-09-045806-002-1208ND