Know Your Environment. Protect Your Health.

1,2-Dichloropropane

City of Opelousas Water System

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
2018ND100ND
2019N/A00N/A
2020ND20ND
2021ND40ND
2022N/A00N/A
2023ND60ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-0935367792002ND
2018-01-0935367792003ND
2018-01-0935367792004ND
2018-01-0935367792005ND
2018-01-0935367792001ND
2018-01-0935367792002ND
2018-01-0935367792003ND
2018-01-0935367792004ND
2018-01-0935367792005ND
2018-01-0935367792001ND
2020-08-1735571769002ND
2020-08-1735571769001ND
2021-01-1935606222002ND
2021-01-1935606222003ND
2021-01-1935606222004ND
2021-01-1935606222005ND
2023-08-2835823882001ND
2023-08-2835823882002ND
2023-08-2835823882003ND
2023-08-2835823882004ND
2023-08-2835823882005ND
2023-08-2835823882006ND