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EWG's Tap Water Database — 2021 UPDATE

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1,2-Dichloropropane

Cal-water Service Company-oroville

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

 

62

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND90ND
2016ND100ND
2017ND90ND
2018ND90ND
2019ND160ND

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
2014-01-225701-009-1130ND
2014-01-225701-007-1500ND
2014-04-165701-009-1145ND
2014-04-165701-007-1100ND
2014-05-225701-005-1300ND
2014-07-225701-009-1040ND
2014-07-225701-007-1400ND
2014-10-215701-009-1000ND
2014-10-215701-007-1530ND
2015-01-225701-007-1330ND
2015-01-225701-009-1110ND
2015-02-175701-005-1510ND
2015-04-215701-007-1330ND
2015-04-215701-009-1105ND
2015-07-215701-009-1120ND
2015-07-215701-007-1425ND
2015-10-205701-007-1330ND
2015-10-205701-009-1045ND
2016-01-215701-007-1335ND
2016-01-215701-009-1050ND
2016-02-175701-005-1320ND
2016-03-155701-008-1135ND
2016-04-195701-009-1050ND
2016-04-195701-007-1330ND
2016-07-195701-009-1135ND
2016-07-195701-007-1530ND
2016-10-255701-009-1440ND
2016-10-255701-007-1645ND
2017-01-245701-007-1530ND
2017-01-245701-009-1120ND
2017-04-115701-009-1330ND
2017-04-115701-007-1105ND
2017-05-235701-005-1500ND
2017-07-209590-007-1200ND
2017-07-209590-009-1000ND
2017-10-175701-007-1345ND
2017-10-175701-009-1100ND
2018-02-135701-005-1330ND
2018-02-225701-009-1025ND
2018-02-225701-007-1315ND
2018-04-119590-007-1330ND
2018-04-119590-009-1030ND
2018-07-195701-007-1310ND
2018-07-195701-009-1030ND
2018-10-165810-009-1301ND
2018-10-165810-007-1040ND
2019-01-225810-005-1000ND
2019-01-225810-900-1135ND
2019-01-225810-901-1110ND
2019-01-225810-902-1050ND
2019-01-225810-903-1030ND
2019-02-125701-005-1000ND
2019-03-195701-008-1050ND
2019-03-195701-006-1310ND
2019-03-279590-009-1330ND
2019-03-279590-007-1000ND
2019-04-115810-009-1400ND
2019-04-115810-007-1020ND
2019-07-235701-009-1430ND
2019-07-235701-007-1040ND
2019-10-155701-009-1550ND
2019-10-155701-007-1120ND