Regional Screening Levels definition

Regional Screening Levels means risk-based chemical concentrations derived from standardized equations combing exposure assumptions with US EPA chemical-specific toxicity values and target risk levels that are used for site screening and initial cleanup goals.
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Examples of Regional Screening Levels in a sentence

  • All analytical methods shall use appropriate detection levels to allow comparison to the media-specific screening criteria listed in the “United States Environmental Protection Agency Regional Screening Levels for Chemical Contaminants at Superfund Sites” (EPA RSLs) in effect at the time of sampling.

  • All analytical methods shall be capable of achieving appropriate reporting levels to allow comparison to the media-specific screening criteria listed in the “United States Environmental Protection Agency Regional Screening Levels for Chemical Contaminants at Superfund Sites” (EPA RSLs) in effect at the time of sampling.

  • All analytical methods shall use appropriate detection levels to allow comparison to the media-specific screening criteria listed in the “EPA Regional Screening Levels for Chemical Contaminants at Superfund Sites” in effect at the time of sampling.

  • All analytical methods shall use appropriate detection levels to allow comparison to the media-specific screening criteria listed in the “United States Environmental Protection Agency Regional Screening Levels for Chemical Contaminants at Superfund Sites” (EPA RSLs)in effect at the time of sampling.

  • Contaminant levels acceptable for unrestricted use shall be the Screening Levels for Resident Soil as specified in the EPA Regional Screening Levels for Chemical Contaminants at Superfund Sites for soil, and the primary maximum contaminant level (MCL) standards in the South Carolina State Primary Drinking Water Regulations, R.61-58 for groundwater.

  • Following completion of the environmental response project analytical results indicate: • Tetrachloroethene (PCE) in soil at concentrations below the United States Environmental Protection Agency (U.S. EPA) Regional Screening Levels (“RSLs”) for both Industrial Soil and Residential Soil; • Vapor intrusion risk at the Release Site has been mitigated by the installation of a sub-slab depressurization system; and • There are no documented impacts to groundwater.

  • SVOCs exceeded residential and/or industrial Regional Screening Levels (RSLs) in two (2) of the collected soil samples.

  • Concentrations of several detected polynuclear aromatic hydrocarbons (PAH) exceeded EPA groundwater protection Regional Screening Levels (RSL), although none of the concentrations exceeded the MDEQ Part 201 Residential DWPC or DCC.

  • Additionally, soil samples contained elevated levels of lead and PCBs above USEPA’s Regional Screening Levels.

  • The air and vapor sampling results will be compared to the USEPA Regional Screening Levels (RSLs) for both a Resident and Composite Worker scenario and/or the screening levels provided in the IDEM Remediation Closure Guide.