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National Pollutant Discharge Elimination System (NPDES)

Contact Us: Combined Sewer Overflows (CSOs)

Headquarters Contacts

Mohammed Billah ( (202) 564-2228
Lisa Biddle ( (202) 566-0350
Jenelle Hill ( (202) 566-1893

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Regional Contacts

Region 1: Boston (serving CT, ME, MA, NH, RI, and VT)
George Harding ( 617-918-1870

Region 2: New York City (serving NJ, NY, Puerto Rico, and the U.S. Virgin Islands)
Stan Stephansen ( 212-637-3776
Alyssa Arcaya ( 212-637-3730

Region 3: Philadelphia (serving DE, DC, MD, PA, VA, and WV)
Dana Walker ( 215-814-2928
Steven Maslowski ( 215-814-2371  

Region 4: Atlanta (serving AL, FL, GA, KY, MS, NC, SC, and TN)
Mike Mitchell ( 404-562-9303  

Region 5: Chicago (serving IL, IN, MI, MN, OH, and WI)
John Wiemhoff ( 312-353-8546  

Region 6: Dallas (serving AR, LA, NM, OK, and TX)
No CSOs in Region

Region 7: Kansas City (serving IA, KS, MO, and NE)
Jodi Bruno ( 913-551-7810  

Region 8: Denver (serving CO, MT, ND, SD, UT, and WY)
Amy Clark ( 303-312-7014
David A. Gwisdalla, P.E. ( 303-312-6193  

Region 9: San Francisco (serving AZ, CA, HI, NV, American Samoa, Commonwealth of the Northern Mariana Islands, Federated States of Micronesia, Guam, Marshall Islands, and Republic of Palau)
Michelle Moustakas ( 415-972-3584  

Region 10: Seattle (serving AK, ID, OR, and WA)
Susan Poulsom ( 206-553-6258  

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State Agency Contacts

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Alaska Department of Environmental Conservation/Wastewater Discharge Authorization Program
Sally Wanstall ( 907-465-5216

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Connecticut Department of Environmental Protection
Ivonne Hall ( 860-424-3754

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Delaware Department of Natural Resources & Environmental Control / Division of Water Resources / Pollution Control Branch
Robert Underwood ( 302-739-9946 

District of Columbia

US EPA, Region 3 (Permitting Authority for DC)
Mary Letzkus ( 215-814-2087

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Georgia Environmental Protection Division / Water Protection Branch
Jamila Norman ( 404-675-1687
Marzieh Shahbazaz ( 404-362-2680

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Illinois Environmental Protection Agency / Bureau of Water / Division of Water Pollution Control / Permits Section
Amy Dragovich ( 217-782-0610
Rick Pinneo ( 217-782-0610  


Indiana Department of Environmental Management / Office of Water Quality / Municipal NPDES Permits Section
Jerry Dittmer ( 317-233-0469  


Iowa Department of Natural Resources
Tom Atkinson ( 515-281-5054  

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Kansas Department of Health & Environment / Bureau of Water
Rance Walker ( 785-296-5537  


Kentucky Department for Environmental Protection / Division of Water
Gary Levy ( 502-564-3410  

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Maine Department of Environmental Protection / Division of Water Quality Management
David P. Breau ( 207-287-7766  


Maryland Department of the Environment / Water Management Administration / Compliance Program / Enforcement Division
Dave Lyons ( 410-537-3626


US EPA Region 1 in New England (Permitting Authority for Massachusetts)
George Harding ( 617-918-1870


Michigan Department of Natural Resources and the Environment
Thomas Knueve ( 517-241-9535  


Minnesota Pollution Control Agency / Municipal Division
David Sahli ( 651-757-2687


Missouri Department of Natural Resources
Kevin Mohammadi ( 573-751-1740

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Nebraska Department of Environmental Quality
Craig Horn ( 402-471-8832  

New Hampshire

US EPA Region 1 in New England (Permitting Authority in New Hampshire)
George Harding ( 617-918-1870 

New Jersey 

New Jersey Department of Environmental Protection / Municipal Finance and Construction Element
Joe Mannick ( 609-292-4860  

New York 

New York Department of Environmental Conservation / Bureau of Water Compliance Programs
Koon Tang ( 518-402-8238

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Ohio River Valley Water Sanitation Commission (ORSANCO)
Stacey Cochran ( 513-231-7719
Ohio Environmental Protection Agency / Division of Surface Water / Permit and Compliance Section
Dan Gill ( 614-644-2118


Oregon Department of Environmental Quality / Water Quality Division
Jim Billings ( 503-229-5073
Michael Pinney ( 503-229-5310  

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Pennsylvania Department of Environmental Protection
Dharmendra Kumar ( 717-783-2288  

Puerto Rico 

US EPA Region 2 / Division of Environmental Planning and Protection / Clean Water Regulatory Branch / NPDES Section (Permitting Authority for Puerto Rico)
Stan Stephansen ( 212-637-3776

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Rhode Island 

Rhode Island Department of Environmental Management / Office of Water Resources
Angelo Liberti ( 401-222-4700 x7225  

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South Dakota 

South Dakota Department of Environment & Natural Resources / Surface Water Quality Program
Doug Baldwin ( 605-394-2229

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Tennessee Department of Environment & Conservation / Division of Water Pollution Control
Saya Ann Qualls ( 615-532-0652  

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Vermont Department of Environmental Conservation / Watershed Management Division / Wastewater Management Program
Ernie Kelley ( 802-338-4833  


Virginia Department of Environmental Quality / Office of Water Permits & Compliance Assistance
Burton R. Tuxford ( 804-698-4086

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Washington Department of Ecology / Water Quality Program
Mark Henley ( (425) 649-7103
Shawn McKone ( (425) 649-7037

West Virginia 

West Virginia Department of Environmental Protection / Division of Water and Wastewater Management / Permitting Section
Don Lewis ( 304-926-0499 x1595  


Wisconsin Department of Natural Resources / Bureau of Watershed Management - WT/3
Thomas J. Mugan ( 608-266-7420
Gerald Novotny ( 608-267-7625  

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