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Skip Navigation Links Home » Leaking Underground Storage Tanks » risk base screening levels in this here folder » risk based screening levels

RBCA Tier 1 Look-up Tables

Click on the links below for their respective RBCA Tier 1 Risk Based Screening Levels Look-up Table.

  • Tier 1 Surface Soil (0-2 ft) RBSLs Table
  • Tier 1 Subsurface Soil (>2 ft) RBSLs Table
  • Tier 1 Groundwater RBSLs and Standards Table
  • Revised Technical Guidance Document #7:  Soil and Groundwater Action Levels for Petroleum Releases under the DEQ Petroleum Release Section

Petroleum Release Program

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