Pakistan Environmental Protection Agency - Ministry of Environment and Urban Affairs www.environment.gov.pk

Geology & Soil Science

• U.S. Geological Survey
• Index to State Geologic Surveys (by American Association of State Geologists)
• Color Landform Atlas of the United States
• Mineralogy Database
• Indiana Geological Survey
• New Jersey Geologic Survey
• New York State Geological Survey
• Ohio Geologic Survey
• Online Access to Ohio Well Logs
• Pennsylvania Geologic Survey
• Tennessee Division of Geology
• West Virginia Geological and Economic Survey

Environmental Sampling and Assessment

• EPA Issue Papers (sampling methods and site assessment)
• EPA Subsurface Investigation and Remediation Division Publications
• Microsoft TerraServer Aerial Photographs and Topo Maps
• National Aerial Photography Program, Search Page (by USGS)

Hydrogeology & Groundwater Modeling

• EPA Center for Subsurface Modeling Support (CSMoS) (download modeling software)
• International Ground Water Modeling Center
• USGS Groundwater Modeling Software
• GroundwaterSoftware.com
• Modeling Subsurface Transport of Petroleum Hydrocarbons (USEPA)

Civil & Geotechnical Engineering

• Ohio DOT CADD Downloads
• Low-Flow Statistics for Pennsylvania Streams
• The Hydrology and Hydraulics Software Shop (by Water Resources Consulting Services)
• U.S. Army COE Hydrologic Engineering Center
• U.S. Army COE Cold Regions Research and Engineering Laboratory

Federal Agencies and Regulations

• Code of Federal Regulations (Government Printing Office)
• 1995, 1996, 1997 and 1998 Federal Register
• USEPA Home Page
• EPA Federal Register Environmental Documents
• Federal and State Environmental Agency Index (maintained by USEPA)
• United States EPA, Superfund Homepage
• USEPA - Laws and Regulations
• U.S. Air Force Center for Environmental Excellence
• U.S. Department of Energy Environmental Management

State Agencies and Regulations

• Federal and State Environmental Agency Index (maintained by USEPA)
  
  
• Indiana Department of Environmental Management
• Maryland Department of the Environment
• Michigan Department of Environmental Quality
• Michigan Department of Natural Resources
• New Jersey Department of Environmental Protection
• NJDEP Site Remediation Program
• New York State Department of Environmental Conservation
• Ohio Environmental Protection Agency
• Ohio Voluntary Action Program
• Pennsylvania Department of Environmental Protection
• Pennsylvania DEP Guide to Permits and Forms
• DEP Cyber Bookstore
• Pennsylvania Act 2 Land Recycling Forms
• Pennsylvania Act 2 Home Page
• Pennsylvania Code of Regulations
• Tennessee Department of Environment and Conservation
• Virginia Department of Environmental Quality
• West Virginia Division of Environmental Protection

Chemistry and Analytical Data

• ChemFinder Look up chemical-specific information by name, CAS Number, molecular formula, or molecular weight
• Superfund Contact Laboratory Program Documents
• Index to EPA Test Methods
• USEPA Environmental Test Methods and Guidelines
• Field Analytic Technologies Encyclopedia
• Chemicals in the Environment Fact Sheets (by USEPA OPPT)
  
  
• SPILLS Catalogue of Crude Oil and Oil Product Properties (excellent source of information on natural hydrocarbon composition)
• USGS STORET Homepage (Instructions for requesting data only; database is not on-line yet.)

Site Remediation

• Compilations of Technologies
  • EPA's Hazardous Waste Clean-Up Information (CLU-IN)
  • Remediation Technologies (by Groundwater Remediation Technologies Analysis Center)
  • EPA Treatment Technologies Screening Matrix
  • EPA Publications on Remediation Technologies
• Natural Attenuation
  • Sandia Lab's Monitored Natural Attenuation Toolbox
  • EPA's Directive on the Use of Natural Attenuation
  • Protocol for Evaluating Natural Attenuation of Chlorinated Solvents (US Air Force)
• Bioremediation
  • EPA List of Links to Bioremediation Documents
  • Bioremediation Discussion Group
• Phytoremediation
  • Phytoremediation of TCE using Populus
  • The Phytoremediation Electronic Network (University of Parma, Italy)
  • Phytoremediation Bibliography
• State Requirements
  • Pennsylvania UST Cleanup Requirements
  • MGK Brownfields Redevelopment (Good compilation of Brownfields programs for Pennsylvania, Delaware and New Jersey)

Climate and Stream Flow

• National Climatic Data Center (Download historic climatological data and maps)
• National Weather Service
• Monthly Normal Temperature and Precipitation Tables
• Eastern Regional Sites
• Regional Sites Menu
• Water Year Precipitation Data
• USGS Real-Time Water Data(Access current data for any USGS gauging station)
• Low-Flow Statistics for Pennsylvania Streams
• Great Lakes and Ohio River Navigation Reports (U.S. Army COE)
• Ohio River Valley Water Sanitation Commission
• Climatic Averages and Records

Toxicity Data and Regulatory Criteria

• USEPA Drinking Water Regulations and Health Advisories Front Page (MCLs and more)
• Clean Air Act Amendments
• ToxFAQs Hazardous Substance Fact Sheets (by ASTDR)
• EPA's Integrated Risk Information System (IRIS)
• MSDS Collection
• Extension Toxicology Network (fact sheets and data resources from a cooperative university effort)
• National Recommended Water Quality Criteria
• USEPA Region 9 Preliminary Remediation Goals
• Pennsylvania Chapter 16 Water Quality Criteria

Biology

• American Fisheries Society
• American Society of Ichthyologists and Herpetologists
• American Society of Limnology and Oceanography
• USGS Biological Resources Division
• Native Fish Conservancy
• Pennsylvania Fish and Boat Commission
• EPA's Office of Water

Mapping, Photography, GIS

• Microsoft TerraServer Aerial Photographs and Topo Maps
• National Aerial Photography Program, Search Page (by USGS)
• USGS National Mapping Information
• National Atlas (HUGE files = long downloads)
• PSU Map Library
• Pennsylvania Spatial Data Access
• Yahoo Maps and Directions

Revegetation and Plants

• PLANTS National Database

Professional Associations

• ASFE
• American Institute of Petroleum Geologists
• American Society of Civil Engineers
• American Petroleum Institute
• National Groundwater Association

Other Information Sources

• Envirofacts Warehouse : Search EPA records for permits, releases, violations, water supplies
• Thomas Register
• TransSource: Transporatation Environmental Resource Center