Vendor has documented experience with post-wildfire soil evaluation or remediation in California.
Vendor demonstrates familiarity with DTSC Residential Soil Evaluation and Sampling guidance issued for the 2025 LA fires.
2
Step 2
Professional Qualifications
Certified Industrial Hygienist (CIH) involved for exposure and health risk interpretation.
California Professional Geologist (PG) or Certified Engineering Geologist (CEG) involved in sampling design or data interpretation.
Independent testing professional is not financially tied to the remediation contractor.
3
Step 3
Contractor Licensing & Safety
Active California Contractors State License Board (CSLB) license appropriate for soil or earthwork activities.
Workers trained under OSHA HAZWOPER or equivalent hazardous materials safety programs.
Awareness of wildfire-related contaminants such as lead, arsenic, PAHs, and ash residues.
4
Step 4
Soil Sampling & Laboratory Testing
Written soil sampling plan consistent with DTSC wildfire guidance.
Samples analyzed by a state-accredited laboratory with proper chain-of-custody documentation.
Results compared against California residential soil screening levels and/or appropriate background values.
5
Step 5
Remediation Planning & Execution
Written remediation plan provided before work begins, including scope and cleanup goals.
Clear explanation of soil removal limits, replacement material, and dust control measures.
Proper classification, hauling, and disposal of soil at approved facilities.
6
Step 6
Confirmation & Documentation
Post-remediation confirmation sampling performed where appropriate.
Homeowner receives laboratory reports, disposal manifests, and final summary documentation.
Results and decisions explained in plain language understandable to residents.
⚑ Red Flags
Claims that testing is unnecessary, or discourages independent evaluation.
Refusal to provide licenses, certifications, or written documentation.
Vague promises not tied to DTSC or California regulatory standards.
This checklist is intended to support informed decision-making and does not replace guidance from DTSC, local health departments, or licensed environmental professionals.