Hazardous Waste Tank Integrity Assessments, CA

Project Details

Hazardous Waste Tank Integrity Assessments, CA

Many of our industrial clients maintain aboveground tanks for the temporary storage of used motor oil and other regulated materials. In California, used motor oil is considered to be a non-RCRA hazardous waste, meaning that it is not federally regulated under the Resource Conservation and Recovery Act of 1976, but still regulated at the state level.

Facilities storing used motor oil are required by the California Department of Toxic Substances Control (DTSC) to obtain and maintain hazardous waste tank integrity assessments (certified by a CA-licensed) for all of these storage tanks to prevent the release of hazardous material.

DPSI provides these services state-wide. Our involvement often comes after routine inspections by the Certified Unified Program Agency (CUPA – typically local fire departments). We work with our clients to address and resolve any deficiencies identified during our assessments.

DPSI’s scope of work typically includes:

  • Formal external inspections per Steel Tank Institute’s (STI) SP-001 (Standard for the Inspection of Aboveground Storage Tanks)
  • Structural calculations for seismic anchorage design
  • Tank-integrity assessments based on in-progress feedback from CUPA
  • Review of completed assessments with CUPA  and DTSC to ensure compliance prior to issuing final copies (stamped and signed by a CA-licensed Professional Engineer)