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Home > Contact Us > Numbers to Know (Who to Contact at MDE)
Information on Managing Air Information on Managing Water Information on Managing Land/Waste

MDE Numbers to Know

AIR AND RADIATION MANAGEMENT ADMINISTRATION

Director 410-537-3255
Air Quality Compliance  410-537-4225 
Air Monitoring and Information     410-537-3240 
Air Quality Permit      410-537-3230 
Air Quality Planning      410-537-3240 
Asbestos  410-537-3200 
Mobile Sources        410-537-3270 
Radiological Health      410-537-3300 

SCIENCE SERVICES  ADMINISTRATION

Director  410-537-3691 
Community Right to Know Information    410-537-3800 
TMDL 410-537-3902
Public Bathing Beaches      410-537-3906  
Emergency Response & Nuclear Planning
     (See also MDE Emergency Numbers)		 410-537-3975
  
Environmental Assessment & Standards Program      410-537-3906 
Regulations Coordination     410-537-3173 
Shellfish Waters      410-537-3906 
Water Quality Monitoring     443-482-2700 

LAND MANAGEMENT ADMINISTRATION

Director   410-537-3304 
Concentrated Animal Feeding Operations 410-537-3315
Hazardous and Medical Waste Information    410-537-3344 
Lead Poisoning Prevention, 1-800-776-2706
 410-537-4199
Mine Operations Permitting (Coal) 301-689-6104
                  (Non Coal) 410-537-3557
Oil Control       410-537-3442 
Recycling  410-537-3314 
Scrap Tires       410-537-3315 
Solid Waste and Sewage Sludge Complaints   410-537-3315 
Solid Waste and Sewage Sludge Permits    410-537-3375 
Brownfields/Voluntary Cleanup 410-537-3437 

WATER MANAGEMENT ADMINISTRATION

Director  410-537-3567 
Financial Assistance Programs     410-537-3574 
Individual Wells 410-537-3784 
Inspection and Compliance
     Days
     Nights/Weekends		  
410-537-3510
866-MDE GO TO 
Sediment, Stormwater & Dam Safety Program   410-537-3543 
Water Supply Program  410-537-3702 
Sewage Disposal Systems  410-537-3778 
Wastewater Permit Program  410-537-3599 
Wetland Permitting
     Tidal
     Non-Tidal		 410-537-3837
410-537-3768  
Regulatory Services 1-800-876-0200
See: WMA Numbers To Know  
 

EMERGENCY NUMBERS
(To report suspected pollution problems)

Air Pollution Violations
     Days
     Nights/Weekends
  		  
410-537-3215
or 866-MDE GO TO 
Fish Kills and Algae Blooms
     Days
     Nights/Weekends
   		  
800-285-8195
888-584-3110 or
866-MDE GO TO 
Hazardous Material & Oil Spills
     Days
     Nights/Weekends      		 866-633-4686
Mining & Agriculture
     Days
     Nights/Weekends        		  
410-537-7405 
866-MDE GO TO
Public Sewer Leaks/Overflows
     Days
     Nights/Weekends 		  
410-537-3510 
866-MDE GO TO
Public Water Supply Problems
     Days
     Nights/Weekends 		  
410-537-3706
866-MDE GO TO 
Radiation Accidents or Safety Violations
     Days
     Nights/Weekends
   		  
410-537-3300
or
866-MDE GO TO 
Sediment, Wetland
     Days
     Nights/Weekends    		  
410-537-3510
866-MDE GO TO 
Underground Tank Leaks
     Days
     Nights/Weekends     		  
410-537-3442
866-MDE GO TO

 24-HOUR INFORMATION

Chesapeake Bay Safety & Environmental Hotline 877-224-RBAY
Daily Air Quality Report (Recording)   410-537-3247 
Shellfish Waters: Information on Conditional Restrictions (Recording)  800-541-1210 
Recycling Hotline (Recording)  800-IRECYCLE 

GENERAL NUMBERS

Information
     Toll Free
     TTY For the Deaf   		 410-537-3000
800-633-6101
410-537-4396 
Americans With Disabilities Act Compliance    410-537-3964 
Environmental Justice Program    410-537-3899 
Minority Business Enterprise Program    410-537-3964 
Office of Communications    410-537-3003 
Public Information Act Requests    410-537-4120 

MDE FIELD OFFICES

Central Maryland
    Baltimore
    Annapolis		 410-537-3000
443-482-2700
Western Maryland
      Frostburg
      Hagerstown		 301-689-5756 
301-665-2850
Eastern Shore
      Cambridge 		 410-901-4020

COUNTY HEALTH SERVICES

DAYTIME

NIGHTIME
Allegany  301-759-5041  
Anne Arundel 410-222-7050   
Baltimore City    410-396-4422 410-396-3100
Baltimore County 410-887-3733  
Calvert 410-535-3922   
Calvert - (D.C. Area) 301-855-1557  
Caroline 410-479-8045  
Carroll 410-876-1884  
Cecil 410-996-5160  
Charles 301-609-6900  
Dorchester 410-228-1167   
Frederick 301-600-1726 301-600-1603
Garrett 301-334-7760 301-334-1929
Harford 443-643-0300 410-838-6600
Howard (Main Office) 410-313-2640  
Kent 410-778-1350  
Montgomery 240-777-7700  

Prince George's

 301-883--7600 301-350-9735
Queen Anne's 410-758-0721  
St. Mary's 301-475-4321  
Somerset 443-523-1730  
Talbot 410-770-6880  
Washington 240-313-3400  
Wicomico 410-546-4446  
Worcester  410-632-1220  

Download - MDE's Numbers to Know Pamphlet (.pdf)

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Related Resources

• MDE Locations
• Local Environmental Health Offices
• MD State Telephone Directory
• Directions to MDE
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