Department of Toxic Substances Control

The role of the DTSC is to protect California's people and the environment from the harmful effects of toxic substances by restoring contaminated resources, enforcing hazardous waste laws, reducing hazardous waste generation, and encouraging the manufacture of chemically safer products. They also regulate the generation, handling, treatment, and disposal of hazardous waste in California, and oversee the cleaning of thousands of hazardous waste sites in California including disposal sites and industrial sites that resulted in contamination of soil and groundwater.

DTSC Project Location Database identifies soil and groundwater sites in Santa Ana:

Recent News:
Former DICEON Electronics Inc. Facility, 2215 S. Standard Avenue:
DTSC Approval of Interim Remedial Action Plan June 25, 2021
Interim Remedial Action Plan

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