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  2. National Pollutant Discharge Elimination System (NPDES)

Contact Us: Aquaculture

  • EPA Headquarters Contact
  • EPA Regional Contacts

EPA Headquarters Contact

Chelsea Durant (durant.chelsea@epa.gov) (202) 564-2290


EPA Regional Contacts

  • Region 1
  • Region 2
  • Region 3
  • Region 4
  • Region 5
  • Region 6
  • Region 7
  • Region 8
  • Region 9
  • Region 10

Region 1: Boston (serving CT, ME, MA, NH, RI, and VT)
Nathan Chien (chien.nathan@epa.gov) (617) 918-1649
Eric P. Nelson (nelson.ericp@epa.gov) (617) 918-1676

Region 2: New York City (serving NJ, NY, Puerto Rico, and the U.S. Virgin Islands)
Sieglinde Pylypchuk (pylypchuk.sieglinde@epa.gov) (212) 637-4133

Region 3: Philadelphia (serving DE, DC, MD, PA, VA, and WV)
Shana Stephens (stephens.shana@epa.gov) (215) 814-2771
Rebecca Crane (crane.rebecca@epa.gov) (215) 814-2389

Region 4: Atlanta (serving AL, FL, GA, KY, MS, NC, SC, and TN)
Kip Tyler (tyler.kip@epa.gov) (404) 562-9294
Susanna Bains (bains.susanna@epa.gov) (404) 562-9747

Region 5: Chicago (serving IL, IN, MI, MN, OH, and WI)
John Nguyen (nguyen.john@epa.gov) (312) 886-6072

Region 6: Dallas (serving AR, LA, NM, OK, and TX)
Jim Afghani (afghani.jim@epa.gov) (214) 665-6615

Region 7: Kansas City (serving IA, KS, MO, and NE)
None

Region 8: Denver (serving CO, MT, ND, SD, UT, and WY)
Qian Zhang (zhang.qian@epa.gov) (303) 312-6267

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)
Peter Kozelka (kozelka.peter@epa.gov) (415) 972-3448
Sunny Elliott (elliott.sunny@epa.gov) (415) 972-3840

Region 10: Seattle (serving AK, ID, OR, and WA)
Martin Merz (merz.martin@epa.gov) (206) 553-0205  (Alaska, Oregon, and Washington)
Lisa Kusnierz (kusnierz.lisa@epa.gov) (208) 378-5626  (Idaho)

National Pollutant Discharge Elimination System (NPDES)

  • About NPDES
    • Permit Basics
    • State Program Information
    • Permit Limits
    • Program Management and Oversight
    • NPDES Regulations
    • Other Federal Laws that Apply to the NPDES Permit Program
  • All NPDES Program Areas
    • Animal Feeding Operations
    • Aquaculture
    • Forest Roads
    • Industrial Wastewater
    • Municipal Wastewater
      • Combined Sewer Overflows (CSOs)
      • Sanitary Sewer Overflows (SSOs)
      • Peak Flows
      • Integrated Planning
    • National Pretreatment Program
      • Standards and Requirements
      • Roles and Responsibilities
      • Events, Training and Webinars, and Publications
    • Pesticide Permitting
    • Stormwater
      • Construction Activities
      • Industrial Activities
      • Municipal Sources
      • Transportation Sources
      • Oil and Gas Permitting
      • Stormwater Planning
      • EPA's Residual Designation Authority
      • Rules and Notices
    • Water Quality Trading
  • NPDES Technical Resources
    • Resources for Permit Writers
    • NPDES Permit Writers' Manual
    • NPDES Training
    • Tools
    • Electronic Notice of Intent (eNOI)
    • NPDES Applications and Forms
Contact Us About NPDES
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 6, 2025
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