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EWG's Tap Water Database — 2021 UPDATE

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1,2-Dichloropropane

Rehoboth District

1,2-Dichloropropane is a volatile carcinogenic solvent discharged from chemical factories and landfills. It also contaminates farmland due to its former use as a soil fumigant. Read More.

The insecticide and fumigant uses of 1,2-dichloropropane were discontinued in the 1980s, but it is still used as an industrial solvent. The California public health goal of 0.5 parts per billion, set to protect against cancer, is 10 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion. 1,2-Dichloropropane can also damage the nervous system, liver, kidneys, and digestive and respiratory systems.

Click here to read more about carcinogenic VOCs.

MORE ABOUT THIS CONTAMINANT

 

109

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND200ND
2015ND230ND
2016ND180ND
2017ND180ND
2018ND100ND
2019ND200ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for 1,2-dichloropropane 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.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for 1,2-dichloropropane, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-05S479051ND
2014-03-05S479052ND
2014-03-05S479053ND
2014-03-05S479054ND
2014-05-15S479194ND
2014-06-02S479123ND
2014-06-02S479124ND
2014-06-02S479125ND
2014-06-02S479126ND
2014-07-28L5175318-1ND
2014-09-03S479191ND
2014-09-03S479192ND
2014-09-03S536964ND
2014-09-03S536965ND
2014-10-15S257741ND
2014-10-21S251486ND
2014-12-01S316446ND
2014-12-01S316447ND
2014-12-01S316448ND
2014-12-01S316449ND
2015-01-14S504599ND
2015-03-02S580502ND
2015-03-02S580503ND
2015-03-02S580504ND
2015-03-02S580505ND
2015-05-27S612405ND
2015-06-01S612414ND
2015-06-01S612415ND
2015-06-01S612416ND
2015-06-01S612417ND
2015-08-10S590347ND
2015-08-26S602019ND
2015-09-09S602035ND
2015-09-09S602036ND
2015-09-09S602037ND
2015-09-09S602038ND
2015-10-20S614746ND
2015-10-20S614747ND
2015-11-05S624991ND
2015-12-07S625009ND
2015-12-07S625010ND
2015-12-07S625011ND
2015-12-07S625012ND
2016-03-07S602103ND
2016-03-07S602104ND
2016-03-07S602105ND
2016-03-07S602106ND
2016-04-11S73229ND
2016-04-11S73230ND
2016-06-06S629046ND
2016-06-06S629047ND
2016-06-06S629048ND
2016-06-06S629049ND
2016-09-07S670379ND
2016-09-07S670380ND
2016-09-07S670381ND
2016-09-07S670382ND
2016-12-05S670400ND
2016-12-05S670401ND
2016-12-05S670402ND
2016-12-05S670403ND
2017-01-24S670498ND
2017-03-06S679363ND
2017-03-06S679364ND
2017-03-06S679365ND
2017-03-06S679366ND
2017-06-06S730806ND
2017-06-06S730807ND
2017-06-06S730808ND
2017-06-06S730809ND
2017-07-31S679387ND
2017-09-05S737137ND
2017-09-05S737141ND
2017-09-05S737145ND
2017-09-05S737149ND
2017-12-04S659090ND
2017-12-04S670396ND
2017-12-04S679375ND
2017-12-04S679379ND
2018-01-24S730853ND
2018-03-06S770612ND
2018-03-06S770616ND
2018-03-06S770620ND
2018-03-06S770624ND
2018-09-10S812241ND
2018-12-05S817013ND
2018-12-05S817017ND
2018-12-05S817021ND
2018-12-05S817029ND
2019-03-04S847933ND
2019-03-04S847937ND
2019-03-04S847941ND
2019-03-04S847945ND
2019-04-29S847993ND
2019-04-29S847995ND
2019-05-28S848014ND
2019-05-28S848015ND
2019-06-03S848059ND
2019-06-03S848063ND
2019-06-03S848067ND
2019-06-03S848071ND
2019-09-03S864697ND
2019-09-03S864701ND
2019-09-03S864705ND
2019-09-03S864709ND
2019-12-03S919907ND
2019-12-03S919911ND
2019-12-03S919915ND
2019-12-03S919919ND