Know Your Environment. Protect Your Health.

1,2-Dichloropropane

Port Sulphur Water District

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
2020ND30ND
2021ND40ND
2022ND10ND
2023ND40ND

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
2018-01-3035371297001ND
2018-01-3035371297001ND
2019-02-0535446733001ND
2019-02-0535446733001ND
2019-05-3035472024001ND
2019-05-3035472024001ND
2020-03-1035536681001ND
2020-03-1835538502001ND
2020-11-1835593410001ND
2021-03-0135615732001ND
2021-03-0135615734001ND
2021-09-1335663084001ND
2021-10-2635673864001ND
2022-01-1335690764001ND
2023-02-0135777177001ND
2023-10-0335831861001ND
2023-10-0535832714001ND
2023-10-1135834155001ND