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EWG's Tap Water Database — 2021 UPDATE

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1,3-Dichloropropene

Quonnipaug Hills - Main System

1,3-Dichloropropene is a volatile cancer-causing chemical primarily used as a nematocide to fumigate agricultural soils. It exists in two different forms: cis-1,3-dichloropropene and trans-1,3-dichloropropene.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND20ND
2016ND50ND
2017ND40ND
2018ND40ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for 1,3-dichloropropene 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
2014-01-21BG01464VOC1ND
2015-07-10BJ44754VOC1ND
2015-12-11BK35925VOC1ND
2016-01-07BK49383VOC1ND
2016-02-11BK64593VOC1ND
2016-04-11BN11225VOC1ND
2016-07-11BN70336VOC1ND
2016-10-20BV59931VOC1ND
2017-01-13BX22532VOC1ND
2017-04-13BY03996VOC1ND
2017-07-17BY61053VOC1ND
2017-10-06BZ17191VOC1ND
2018-01-12BZ72130VOC1ND
2018-04-09CA16218VOC1ND
2018-08-10CB09067ND
2018-10-01CB61937ND
2019-04-01CC78540ND
2019-07-08CD51641ND
2019-10-08CE28860ND
2019-10-08CE28859ND