What are EPA regional screening levels?
The RSL website is now the source of screening levels for all the EPA regions. The RSL tables provide comparison values for residential and commercial/industrial exposures to soil, air, and tapwater (drinking water). The unified use of the RSLs, to screen chemicals at Superfund sites, promotes national consistency.
What is screening region?
The Regional Screening Levels (RSL) can be described as risk-based concentrations derived from standardized equations combining exposure information assumptions with EPA toxicity data (United States Environmental Protection Agency, 2020).
What United States Agency can give up preliminary information on soil properties?
The Soil Screening Guidance is a tool that the U.S. Environmental Protection Agency (EPA) developed to help standardize and accelerate the evaluation and cleanup of contaminated soils at sites on the National Priorities List (NPL) with future residential land use.
What is a preliminary remediation goal?
Often a risk assessor is called upon to help plan a remedial action at a site. The PRG is the average concentration of a chemical in an exposure area that will yield the specified target risk in an individual who is exposed at random within the exposure area. …
What is screening level?
Screening values, intended to be protective of human health and/or the environment, are often defined as chemical concentrations in environmental media below which no additional regulatory attention is warranted.
How many EPA regions are there?
ten regional offices
EPA has ten regional offices across the country, each of which is responsible for several states and in some cases, territories or special environmental programs. To find information about visiting the regional offices, select your state or territory from the list or click on the map below.
What is an EPA RSL?
Regional Screening Levels (RSLs) – Generic Tables.
What is a soil screening level?
Soil screening levels (SSLs) are reference threshold values required by environmental laws, established based on soil geochemical background data from often-extensive sampling areas.
What are remedial goals?
The objectives are specific goals to be achieved by the selected remedy; these will include fulfilling applicable requirements (See Subsection 16.2. 1.1>). The remedial action objectives should identify questions requiring answers, site characteristics, chemicals of potential concern (COPCs), and potential outcomes.
What are screening values?
Screening values, intended to be protective of human health and/or the environment, are often defined as chemical concentrations in environmental media below which no additional regulatory attention is warranted. Generic screening values are available for chemicals in various media.
What is the EPA in the USA?
The Environmental Protection Agency (EPA) was established in December 1970 by the executive order of President Richard Nixon. It is an agency of the United States federal government whose mission is to protect human and environmental health.
What US Department is the EPA under?
U.S. Department of the Interior
U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA) | U.S. Department of the Interior.
Where can I find EPA regional screening levels?
This website was developed with DOE’s Oak Ridge National Laboratory (ORNL) under an Interagency Agreement as a merger of the EPA Region 3 RBC Table, Region 6 HHMSSL Table and the Region 9 PRG Table. The RSL website is now the source of screening levels for all the EPA regions.
How to download the most recent regional screening levels?
To download the most recent Regional Screening Level tables, please go to the Generic Tables page. For assistance/questions please use the RSL C ontact Us page. This page presents many questions asked by site users and the applicable responses.
What is the EPA’s ecological risk assessment guidance for Superfund?
EPA’s guidance ” Ecological Risk Assessment Guidance for Superfund: Process for Designing and Conducting Ecological Risk Assessment ” contains an eight step process for using benchmarks for ecological effects in the remedy selection process. 1. Introduction 2. Understanding the Screening Tables
How are screening levels ( SLs ) used for Superfund sites?
What are SLs? The screening levels (SLs) presented on this site are developed using risk assessment guidance from the EPA Superfund program and can be used for Superfund sites. They are risk-based concentrations derived from standardized equations combining exposure information assumptions with EPA toxicity data.