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Preliminary Remediation Goals
Region 9 PRG Topics
Online Screen Level Calculator
California Human Health Screening Levels (CHHSLs) (PDF) (67pp, 760K)
Screening Levels for Chemical Contaminants
The Region 9 PRGs have been harmonized with similar risk-based screening levels used by Regions 3 and 6 into a single table: "Regional Screening Levels (RSL) for Chemical Contaminants at Superfund Sites." These updated screening levels, along with a detailed user's guide and supplementary tables, can be accessed directly on-line or downloaded to your own computer. In addition, the web site contains a Screening Level Calculator to assist in calculating site-specific screening levels.
More information on the Regional Screening Level Table »
PRG Tables (Sept. 2008) aka: RSL Tables
| Table Type | PDF (Color) | PDF (B&W) | XSL (Color) | XSL (B&W) |
|---|---|---|---|---|
| Summary Table | (PDF) (11pp, 80.4K) | (PDF) (11pp, 75.1K) | XLS | XLS |
| Residental Soil Supporting | (PDF) (11pp, 71.6K) | (PDF) (11pp, 67K) | XLS | XLS |
| Industrial Soil Supporting | (PDF) (11pp, 66.6K) | (PDF) (11pp, 62.5K) | XLS | XLS |
| Residental Air Supporting | (PDF) (15pp, 53K) | (PDF) (15pp, 51K) | XLS | XLS |
| Industrial Air Supporting | (PDF) (15pp, 55.5K) | (PDF) (15pp, 51K) | XLS | XLS |
| Residental Tapwaters Supporting | (PDF) (15pp, 55.5K) | (PDF) (15pp, 51K) | XLS | XLS |
| Chemical Specific Parameters | (PDF) (7pp, 445K) | (PDF) (7pp, 397K) | XLS | XLS |
| Composite Table | (PDF) (82pp, 397K) | (PDF) (82pp, 388K) | XLS | XLS |
| Citation: USEPA. Regional Screening Levels (RSL) for Chemical Contaminants at Superfund Sites. RSL Table Update. Sept 2008 | ||||
NOTE: The 2004 version of the Region 9 PRG Table will remain at this web site in case users need to reference this historical document. However, the 2004 Table should no longer be used for contaminant screening of environmental media because it has been replaced with the more current Table above.
Region 9 PRGs 2004 Table (PDF) (16pp, 962 K) 