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EWG's Tap Water Database — 2021 UPDATE

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1,2-Dichloropropane

Beauregard Water Works District #3

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

 

44

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND20ND
2016ND200ND
2017N/A00N/A
2018ND220ND
2019N/A00N/A

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
2015-03-0235177665002ND
2015-03-0235177665002ND
2016-01-1935225812002ND
2016-01-1935225812001ND
2016-01-1935225812002ND
2016-01-1935225812005ND
2016-01-1935225812004ND
2016-01-1935225812003ND
2016-01-1935225812001ND
2016-01-1935225812005ND
2016-01-1935225812004ND
2016-01-1935225812003ND
2016-02-0135227539001ND
2016-02-0135227539002ND
2016-02-0135227539003ND
2016-02-0135227539004ND
2016-02-0135227539004ND
2016-02-0135227539003ND
2016-02-0135227539002ND
2016-02-0135227539001ND
2016-05-0235242594004ND
2016-05-0235242594004ND
2018-02-2735377534001ND
2018-02-2735377534001ND
2018-03-1935381349005ND
2018-03-1935381349004ND
2018-03-1935381349005ND
2018-03-1935381349004ND
2018-03-1935381349003ND
2018-03-1935381349002ND
2018-03-1935381349001ND
2018-03-1935381349001ND
2018-03-1935381349002ND
2018-03-1935381349003ND
2018-04-1635387317001ND
2018-04-1635387317005ND
2018-04-1635387317004ND
2018-04-1635387317003ND
2018-04-1635387317002ND
2018-04-1635387317001ND
2018-04-1635387317005ND
2018-04-1635387317004ND
2018-04-1635387317003ND
2018-04-1635387317002ND