Placer County, Northern California

December 2023 Update

Background:

In the early 1960s, a former missile site in Placer County, Northern California, was used for the storage and disposal of hazardous chemicals, including rocket fuel components, solvents, and cleaning agents. Over time, these chemicals leaked into the soil and groundwater, contaminating the surrounding environment.

Recent Findings:

A recent probe conducted by the California Department of Toxic Substances Control (DTSC) has revealed that the chemicals are still spreading near the former missile site. The probe data showed elevated levels of contaminants in the soil and groundwater at several locations near the site.

The chemicals of concern include:

* Trichloroethylene (TCE)

* Perchloroethylene (PCE)

* Tetrachloroethylene (PCE)

* 1,1,1-Trichloroethane (TCA)

* 1,2-Dichloroethane (DCA)

* Benzene

Health Risks:

The chemicals found at the former missile site are known to be toxic and can pose a health risk to humans and the environment. Exposure to these chemicals can cause a range of health problems, including cancer, reproductive problems, and developmental disorders.

Response Actions:

The DTSC is working to address the contamination at the former missile site. The agency has installed monitoring wells to track the movement of the chemicals and is developing a plan to clean up the contaminated soil and groundwater.

The DTSC is also working with the local community to inform residents about the contamination and to address their concerns.

Conclusion:

The recent probe data show that the chemicals are still spreading near the former missile site in Placer County, Northern California. The DTSC is working to address the contamination and to protect human health and the environment.