Environmental Protection Agency and Indoor Air Office of Solid Waste and Emergency Response Washington, DC 20460 EPA/540-R-00-006 PB2000 963306 October 2000 ORIA / Superfund Soil Screening Guidance for Radionuclides: Technical Background Document . The Director may require releases to be cleaned up to standards found in US EPA Regional Screening Levels.. Ecological Soil Screening Levels (Eco-SSLs) are concentrations of contaminants in soil that are protective of ecological receptors that commonly come into contact with and/or consume biota that live in or on soil. • New Jersey has established a preliminary … Ecological risk-based sediment and soil screening values, and their web addresses, are compiled in this memo, … Introduction . For chemical-specific screening levels for use in assessing contaminated sites, please refer to HHRA Note 3 (). The soil direct contact screening levels that appear in Table A-6 are not always health protective levels. These programs estimate various chemical-specific properties. Environmental Protection Agency Office of Solid Waste and Emergency Response Washington, DC 20460 EPA/540/R95/128 May 1996 Superfund Soil Screening Guidance: Technical Background Document Second Edition. SSLs are not national cleanup standards. pointed out by several commenters to the December 1994 draft Soil Screening Guidance (U.S. EPA, 1994h), SSLs developed using these models may violate mass-balance for certain contaminants and site conditions (e.g., small sources). Soil background threshold values (BTVs) were calculated based on samples from Delaware background studies. Office of Solid Waste and Emergency Response, U.S. Environmental Protection Agency, Washington, DC. This document also summarizes conditions when TPH testing is required as part of the investigation and remediation of contaminated … EPA. OSWER 9355.4-24 December 2002 SUPPLEMENTAL GUIDANCE FOR DEVELOPING SOIL SCREENING LEVELS FOR SUPERFUND SITES Office of Emergency and Remedial Response U.S. Environmental Protection Agency Washington, DC 20460 . Ecological Soil Screening Levels for DDT and Metabolites OSWER Directive 9285.7-57 ^ PRO**** P* U.S. Environmental Protection Agency Office of Solid Waste and Emergency Response 1200 Pennsylvania Avenue, N.W. For background information on the development of Eco-SSLs and how they should be used in the Superfund ecological risk assessment process, see the following Memorandum: DEVELOPING SOIL SCREENING LEVELS FOR SUPERFUND SITES Peer Review Draft. How the EPA conducts risk assessment to protect human health and the environment. BY: James Chapman (chapman.james@epa.gov), Ph.D., Ecologist, U.S. EPA. For purposes of soil screening analyses, EPA distinguishes between surface and subsurface soils as follows: surface soils are located within two centimeters of the ground surface, and subsurface soils are located more than two centimeters below the surface. Table A-6 contains soil direct contact screening levels for residential, commercial/industrial, and excavation worker scenarios. Various states have established drinking water and groundwater guidelines, including the following: • Minnesota has established a chronic health risk limit of 0.3 ug/L for PFOS and PFOA in drinking water (MDH 2011). The Eco-SSL derivation process represents the collaborative effort of a multi-stakeholder workgroup consisting of federal, state, consulting, industrys and academic participants. 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