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EWG's Tap Water Database — 2021 UPDATE

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1,2-Dichloropropane

Warminster Municipal Authority

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

 

55

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND180ND
2015ND130ND
2016ND150ND
2017ND10ND
2018ND40ND
2019ND40ND

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
2014-01-071066362002ND
2014-01-071066362001ND
2014-01-071066362017ND
2014-01-071066362016ND
2014-01-071066362015ND
2014-01-071066362014ND
2014-01-071066362013ND
2014-01-071066362012ND
2014-01-071066362011ND
2014-01-071066362010ND
2014-01-071066362009ND
2014-01-071066362007ND
2014-01-071066362006ND
2014-01-071066362005ND
2014-01-071066362004ND
2014-01-071066362003ND
2014-01-171068194001ND
2014-01-271069260001ND
2015-01-0512160913ND
2015-01-0812273826ND
2015-01-0812273805ND
2015-01-0812273679ND
2015-01-0812273784ND
2015-01-0812273763ND
2015-01-0812273742ND
2015-01-0812273700ND
2015-01-0812273658ND
2015-01-0812273637ND
2015-01-0812273616ND
2015-01-0812273595ND
2015-01-0812273721ND
2016-01-1113740434ND
2016-01-1113740518ND
2016-01-1113740497ND
2016-01-1113740392ND
2016-01-1113740476ND
2016-01-1113740539ND
2016-01-1113740455ND
2016-01-1113740413ND
2016-01-1113740371ND
2016-01-1113740350ND
2016-01-1113740329ND
2016-01-1113740308ND
2016-01-1113740287ND
2016-01-1113740560ND
2016-03-0313857824ND
2017-03-2916865866ND
2018-01-032286581002ND
2018-05-028012263-03ND
2018-05-028012263-01ND
2018-05-028012263-02ND
2019-03-293025252001ND
2019-03-293025252003ND
2019-03-293025252005ND
2019-09-043056055001ND