Know Your Environment. Protect Your Health.

1,2-Dichloropropane

Bryants Creek Subdivision

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND40ND
2021N/A00N/A
2022N/A00N/A
2023ND240ND

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
2020-02-02AD60441ND
2020-02-02AD60439ND
2020-02-02AD60438ND
2020-02-02AD60440ND
2023-01-312223851ND
2023-01-312223850ND
2023-01-312223849ND
2023-01-312223848ND
2023-02-222301504ND
2023-02-222301501ND
2023-02-222301502ND
2023-02-222301503ND
2023-06-052303972ND
2023-06-052303974ND
2023-06-052303971ND
2023-06-142310835ND
2023-06-202310890ND
2023-06-202310888ND
2023-06-202310889ND
2023-06-202310891ND
2023-09-192312324ND
2023-09-192312323ND
2023-09-202312326ND
2023-09-202312325ND
2023-11-082317366ND
2023-11-082317368ND
2023-11-082317367ND
2023-11-082317365ND