Region 1 -- New England

Acid Rain Contacts
Air Enforcement Program Resources
Air Quality Planning Unit
Air Toxics
Alternative Dispute Resolution (ADR) Program Contact
Asbestos Enforcement Program Resources
Assistance & Pollution Prevention Office Program Directory
Brownfields
Combustion Units Contacts
Electronic Waste and eCycling
State Environmental Management Systems (EMS) Contacts
EPCRA Assistance/Enforcement Program Resources
Federal Facilities Assistance and Enforcement Program
Lead
Lead Paint Assistance/Enforcement Program Resources
Mercury Contacts
NPDES Storm Water Permit Program
Oil Spills/SPCC Enforcement Program Resources
Pesticides Contacts
Pesticides Enforcement Program Resources
Radon Contacts
RCRA Corrective Action Contacts
RCRA Enforcement Program Resources
Risk Management Program (RMP) Assistance/Enforcement Program Resources
Solid Waste
Superfund Contacts
TSCA Enforcement Program Resources
Title V Permit Contacts
Water Enforcement Program Resources
Wetlands Enforcement Program Resources

Region 2 -- NY/NJ/Caribbean

Organizational Chart (click on links for contact information under each division)

Region 3 -- Mid-Atlantic

Air Protection Contacts
Cleanup in Region 3 Specialist Listing
Enforcement, Compliance and Environmental Justice Contacts
Environmental Assessment and Innovation Division, Quality Assurance Team Contacts
Environmental Innovation Program Contact
EPA & State Nonpoint Source Contacts
EPA Mid-Atlantic Drinking Water Contacts
EPA Mid-Atlantic Water Mine Drainage Contacts
EPA Mid-Atlantic Water NPDES Contacts
National Pollutant Discharge Elimination System (NPDES) Contacts and Enforcement Contacts
Storm Water Pollution Prevention Contacts
Total Maximum Daily Loads Regional Contacts
Waste and Chemicals Specialist List

Region 4 -- Southeast

Air Permitting Region 4 Contacts
Air Quality Modeling Contacts
Air Toxics Contacts
Asbestos Contacts
Brownfields Contacts
Cleanup Risk Assessment Contacts
Compliance Incentives Contact
EPCRA Managers, Program Coordinators and Staff Listing
Ground Water Contacts
Indoor Environments and Radon Contacts
Mobile Source Contacts
Nonpoint Source Contacts
Ocean Dumping and Coastal Contacts
Oil & Gas NPDES Permits
Pesticide Section Contacts
RCRA Enforcement and Compliance Branch State Coordinators, Compliance Assistance Contacts (scroll down for both)
Revitalization Contacts
State/Tribal Lead-Based Paint Contacts
Solid Waste Contacts (scroll down)
Stormwater and Nonpoint Source Section, Municipal and Industrial NPDES Section
Surface Water & Construction Grants Contacts
Technical Assistance for Small Business
Total Maximum Daily Load (TMDL) Contacts
Underground Injection Control Contacts
Water Enforcement Contacts
Watershed Contacts

Region 5 -- Great Lakes

Region 5 Experts List

Region 6 -- South Central

Air Permits Contacts (scroll down)
Air/Toxics and Inspection Coordination
Brownfields Team
Clean Water Act Enforcement Contacts (scroll down to bottom of page)
Compliance Assurance and Enforcement Program Coordinators
Ground Water Center Technical Staff
Indoor Environments Team
Marine and Wetlands Section Contacts
Pesticides Program Contacts
Solid Waste Contacts
State EPCRA, Section 313 Contacts (scroll down)
Storm Water Contacts
Underground Injection Control (UIC) Contact Information
Watershed Management Section Contacts

Region 7 -- Midwest

Acid Rain Program Contacts
Chemical Risk Information Branch Staff
Concentrated Animal Feeding Operations (CAFOs) Contacts
Indoor Air Quality Program
New Source Performance Standards (NSPS) Contacts 
New Source Review (NSR) Contacts (scroll down)
Pesticides Contacts
Pollution Prevention and Solid Waste Staff
Quality Assurance Contacts
Small Business Assistance Programs
State and Local Air Pollution Control Agencies
Stratospheric Ozone Protection Contacts
Title V Permitting Contacts (click on relevant state links)
Underground and Above Ground Storage Tank Branch (scroll down) 

Region 8 -- Rockies/Plains

Region 8 Organization (click on various offices and departments for contacts)

Region 9 -- Pacific Southwest

Region 9 Organizational Chart
Air Programs
Animal Waste Management Contacts
Brownfields Program Project Officers
Enforcement Contacts
Federal Facilities Contacts
Lead Program Contacts
Oil Program Contact Information (scroll down)
PCB Contacts
Pollution Prevention Contacts
Solid Waste Contacts
Superfund Division Organizational Chart
TRI Program Staff
Water Program Contacts

Region 10 -- Pacific Northwest

Region 10 Staff and Phone Listing