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  2. Chesapeake Bay TMDL

Program Contacts for Watershed Implementation Plans and Milestones in the Chesapeake Bay Watershed

If you need technical assistance or additional information regarding the Chesapeake Bay TMDL Watershed Implementation Plans and two-year milestones, please contact the appropriate EPA staff member listed below. Contact information is included on tables organized by program, as indicated in the tabs below.

General- Agriculture - Wastewater - Urban Stormwater - Trading & Offsets - Modeling

General Contacts

NameAffiliationRoleEmail AddressPhone Number
Suzanne TrevenaEPA Region 3, Water DivisionChesapeake Bay Regulatory Manager/Milestones Workgroup Chairtrevena.suzanne@epa.gov215-814-5701
Bo Williams EPA Region 3, Chesapeake Bay Program OfficeWIP and Implementation Team Leader

Williams.james@epa.gov

301-922-9023
Tracy ClarkeEPA Region 3, Water Division WIP/Milestone Evaluation Lead for Delaware and Pennsylvaniaclarke.tracy@epa.gov215-814-5267
Tom ButlerEPA Region 3, Chesapeake Bay Program OfficeActing WIP/Milestone Evaluation Lead for District of ColumbiaButler.Thomas01@epa.gov 410-267-5797
Auston SmithEPA Region 3, Chesapeake Bay Program OfficeWIP Lead for Maryland and West VirginiaSmith.Auston@epa.gov 410-267-5724
Madeline LambrixEPA Region 2, Water DivisionWIP/Milestone Evaluation Lead for New Yorklambrix.madeline@epa.gov212-637-3656
Eric HughesEPA Region 3, Chesapeake Bay Program OfficeWIP/Milestone Evaluation Lead for Virginia and ConowingoHughes.eric@epa.gov410-267-5729
Bo WilliamsEPA Region 3, Chesapeake Bay Program OfficeWIP Lead for Federal Agencies

Williams.james@epa.gov

301-922-9023

 

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Agriculture Contacts

NameAffiliationRoleEmail AddressPhone Number
Samuel MagroEPA Region 3, Enforcement and Compliance Assurance DivisionAgriculture Enforcement Lead for Delaware, Maryland, Pennsylvania, Virginia, and West Virginiamagro.samuel@epa.gov215-814-3158
Leah MartinoEPA Region 3, Water DivisionCAFO Permitting Lead for Delaware, Maryland, Pennsylvania, Virginia, and West Virginia Martino.Leah@epa.gov215-814-3262
Andrea CoatsEPA Region 2, Water DivisionCAFO Permitting Lead for New Yorkcoats.andrea@epa.gov212-637-3850
Christy ArvizuEPA Region 2, Enforcement and Compliance Assurance DivisionAgriculture Enforcement Lead for New Yorkarvizu.christy@epa.gov212-637-4224
Christy ArvizuEPA Region 2,  Enforcement and Compliance Assurance DivisionAgriculture Enforcement Lead for New Yorkarvizu.christy@epa.gov212-637-3961

 

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Wastewater Contacts

NameAffiliationRoleEmail AddressPhone Number
Natalie Sanchez- GonzalezEPA Region 3, Water DivisionWastewater Lead for Delawaresanchez-gonzalez.natalie@epa.gov215-814-2078
Amos MooreEPA Region 3, Water DivisionWastewater Co-Lead for District of Columbiamoore.amos@epa.gov 215-814-2761
Shana StephensEPA Region 3, Water DivisionWastewater Co-Lead for District of Columbiastephens.shana@epa.gov

215-814-2771

Rebecca CraneEPA Region 3, Water DivisionWastewater Lead for Marylandcrane.rebecca@epa.gov215-814-2768
Dana HalesEPA Region 3, Water DivisionWastewater Co-Lead for Pennsylvaniahales.dana@epa.gov

215-814-2928

Kelly

Yachera

EPA Region 3, Water DivisionWastewater Co-Lead for PennsylvaniaYachera.kelly@epa.gov215-814-5743
Ryan ShuartEPA Region 3, Water DivisionWastewater Lead for VirginiaShuart.ryan@epa.gov215-814-2714
Amos MooreEPA Region 3, Water DivisionWastewater Lead for West Virginiamoore.amos@epa.gov215-814-2761
Steve MaslowskiEPA Region 3, Enforcement and Compliance Assurance DivisionWastewater Enforcement Lead for Delaware, District of Columbia, Maryland, Pennsylvania, Virginia and West Virginiamaslowski.steven@epa.gov215-814-2371
Laura FishmanEPA Region 2, Water DivisionWastewater Co-Lead for New Yorkfishman.laura@epa.gov 212-637-3827  
Joshua KoganEPA Region 2, Water DivisionWastewater Co-Lead for New Yorkkogan.joshua@epa.gov212-637-3733
Kristina HeinemannEPA Region 2, Water DivisionOnsite Septic Lead for New Yorkheinemann.kristina@epa.gov212-637-3857

 

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Urban Stormwater Contacts

NameAffiliationRoleEmail AddressPhone Number
Liz OttingerEPA Region 3, Water DivisionUrban Stormwater Lead for Delaware, District of Columbia, Maryland, Pennsylvania, Virginia and West Virginiaottinger.elizabeth@epa.gov215-814-5783
Shane McAleerEPA Region 3, Enforcement and Compliance Assurance DivisionUrban Stormwater Enforcement Lead for Delaware, District of Columbia, Maryland, Pennsylvania, Virginia and West VirginiaMcaleer.Shane@epa.gov 215-814-5616
Christy ArvizuEPA Region 2, Enforcement and Compliance Assurance DivisionUrban Stormwater Enforcement Lead for New Yorkarvizu.christy@epa.gov212-637-4224
Sieglinde PylpchukEPA Region 2 Water DivisionUrban Stormwater Lead for New YorkPylypchuk.Sieglinde@epa.gov212-637-4133

 

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Trading and Offsets Contacts

NameAffiliationRoleEmail AddressPhone Number
Kelly YacheraEPA Region 3, Water DivisionTrading, Offsets, & Growth Lead for WIP EvaluationsYachera.kelly@epa.gov215-814-5743

 

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Modeling Assistance Contacts

NameAffiliationRoleEmail AddressPhone Number
Auston SmithEPA Region 3, Chesapeake Bay Program OfficeModeling Assistance Smith.Auston@epa.gov 410-267-5724
Jessica RigelmanChesapeake Bay Program OfficeModeling Assistance - Wastewater jrigelman@j7llc.com  410-991-0719

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Chesapeake Bay TMDL

  • Bay TMDL Document
  • EPA Activities Pursuant to 2023 Settlement Agreement
  • Bay TMDL Fact Sheet
  • Bay TMDL Development
  • Frequently Asked Questions (FAQs)
  • Watershed Implementation Plans (WIPs)
  • Milestones
  • Air Pollution Reductions
  • Wastewater Pollution Reductions
  • Trading and Offsets
  • Midpoint Assessment
  • EPA Oversight of WIPs and Milestones
  • Sector-Specific EPA Oversight
  • Tracking Tools
Contact Us about the Chesapeake Bay TMDL
Contact Us about the Chesapeake Bay TMDL to ask a question, provide feedback, or report a problem.
Last updated on December 31, 2025
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