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EWG's Tap Water Database — 2021 UPDATE

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1,2-Dichloropropane

Lihue-Kapaa

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

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND180ND
2017ND20ND
2018ND210ND
2019ND10ND

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
2014-04-14C14-04-0132AND
2014-04-14C14-04-0131AND
2015-12-07C15-12-0019AND
2015-12-07C15-12-0020AND
2016-03-07ND
2016-03-07ND
2016-03-07ND
2016-03-09ND
2016-03-09ND
2016-03-09ND
2016-03-09ND
2016-03-21ND
2016-03-21ND
2016-03-21ND
2016-03-21ND
2016-03-22ND
2016-03-22ND
2016-03-22ND
2016-03-23ND
2016-04-04ND
2016-04-04ND
2016-04-04ND
2017-04-12ND
2017-04-26ND
2018-03-05C18-03-0038AND
2018-03-05C18-03-0037AND
2018-03-05C18-03-0039AND
2018-03-05C18-03-0040AND
2018-03-05C18-03-0009AND
2018-03-05C18-03-0041AND
2018-03-05C18-03-0010AND
2018-03-06C18-03-0036AND
2018-03-06C18-03-0035AND
2018-03-07C18-03-0065AND
2018-03-07C18-03-0067AND
2018-03-07C18-03-0066AND
2018-03-19C18-03-0113AND
2018-03-19C18-03-0112AND
2018-03-19C18-03-0114AND
2018-03-22201803230452ND
2018-04-05201804070189ND
2018-04-11201804160781ND
2018-04-19201804200511ND
2018-07-12201807000000ND
2018-07-12201807130880ND
2019-03-11C19-03-0035AND