EPA Resource Links

• EPA Risk Assessment Guidance Documents, Databases, and Software
• Soil Screening Guidance
• EPA Publication Search
• Integrated Risk Information System (IRIS)
• Region 6 Human Health Medium-Specific Screening Levels
• Drinking Water Standards
• Drinking Water Regulations and Health Advisories
• Superfund Chemical Data Matrix (SCDM)
• Calculating Upper Confidence Limits (95%UCL-AM)
• Listing of EPA Test Methods
• SW-846 Online
• Index to EPA Methods
• EPA Analytical Methods for Drinking Water
• CLP Guidance Documents for Data Validation
• EPA's Center for Exposure Assessment Modeling
• EPA Home Page
• EPA Region VI
• EPA Region 3 Risk-Based Concentration Tables
• Region 9 Preliminary Remediation Goals
• EPA Ecological Toxicity Reference Values
• EPA National Center for Environmental Assessment
• EPA Superfund Risk Assessment Homepage
• EPA Chemicals in the Environment OPPT Chemical Fact Sheets
• EPA Quality System for Data and Technology
• Onsite Online Tools for Site Assessment
• EMSOFT Model
• Land Use in the CERCLA Remedy Selection Process
• Draft Guidance for Evaluating the Vapor Intrusion to Indoor Air Pathway from Groundwater and Soil
• IEUBK Model for Lead Exposure
• EPA Technical Review Workgroup for Lead
• Federal Register
• EPA National Environmental Publications Internet Site

Other Useful Links

• Health Effects Assessment Summary Tables (HEAST)
• Calculating Upper Confidence Limits (95%UCL-AM)
• La. DOTD Registered Water Wells
• TPH Working Group Series (Published Volumes)
• Massachusett's DEP VPH/EPH Method
• TNRCC TPH Analytical Methods
• Agency for Toxic Substances and Disease Registry (ATSDR)
• National Library of Medicine Toxnet
• ASTM
• U.S. Dept. of Energy Risk Assessment Information System

Chemical Specific Parameter

• Organic Compounds
• Inorganic Compounds
  • For unitless Henry's Law (ammonia, chlorine, cyanogen, cyanogen chloride, hydrogen cyanide only):
    • Syracuse Research Corporation (SRC). 2005. PHYSPROP Database. SRC. Syracuse, NY.
    • Yaws' Handbook of Thermodynamic and Physical Properties of Chemical Compounds. Knovel, 2003.
  • For Kd (soil-water partition coefficient):
    • EPA Soil Screening Guidance
    • A Review and Analysis of Parameters for Assessing Transport of Environmentally Released Radionuclides through Agriculture
    • Superfund Chemical Data Matrix (SCDM)
  • For molecular weights:
    • EPI
    • Syracuse Research Corporation (SRC). 2005. PHYSPROP Database. SRC. Syracuse, NY.
  • For Vapor Pressure:
    • NIOSH Pocket Guide to Chemical Hazards (NPG), NIOSH Publication No. 97-140, February 2004.
    • Syracuse Research Corporation (SRC). 2005. CHEMFATE Database. SRC. Syracuse, NY.
    • Syracuse Research Corporation (SRC). 2005. PHYSPROP Database. SRC. Syracuse, NY
  • For diffusivity in air and water, if desired at all, for the gasses and mercuric compounds:
    • WATER 9, (EPA 2001). See section 4.9.2.