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EWG's Tap Water Database — 2019 UPDATE

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1,2-Dichloropropane

Averydale Mutual Water Company

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND70ND
2014ND30ND
2015ND40ND
2016ND40ND
2017ND40ND

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
2013-05-143761-006-1314ND
2013-05-143761-004-1232ND
2013-05-143761-001-1300ND
2013-08-133761-006-1127ND
2013-08-133761-004-1013ND
2013-08-133761-001-1121ND
2013-08-133761-003-1022ND
2014-08-193761-006-1320ND
2014-08-193761-003-1346ND
2014-09-093761-001-0918ND
2015-02-173761-004-1414ND
2015-10-133761-001-1515ND
2015-10-133761-003-1442ND
2015-10-133761-006-1532ND
2016-02-163761-004-1412ND
2016-08-163761-001-1425ND
2016-08-163761-006-1421ND
2016-08-163761-003-1345ND
2017-02-213761-004-1343ND
2017-08-223761-006-1437ND
2017-08-223761-003-1347ND
2017-08-223761-001-1429ND