Risk-Based Corrective Action (RBCA) calculator based on ASTM E2081. Compare soil concentrations to US EPA Regional Screening Levels (RSLs) and calculate site-specific target levels.
Compare to RSL lookup tables
| Contaminant | Residential | Industrial | Basis |
|---|---|---|---|
| Lead | 400 | 800 | noncancer |
| Cadmium | 70 | 800 | cancer |
| Arsenic | 0.68 | 3 | cancer |
| Mercury (elemental) | 11 | 46 | noncancer |
| Chromium VI | 0.31 | 5.6 | cancer |
| Chromium III | 120000 | 1500000 | noncancer |
Source: US EPA RSL May 2024 | Units: mg/kg | Target Risk: 1E-6
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Risk-Based Corrective Action (RBCA) is a tiered approach for evaluating contaminated sites based on ASTM E2081. It balances environmental protection with practical remediation while considering actual site conditions and exposure pathways.