May 2022 - Chesapeake Bay TMDL Symposium

Presentation File & Attendee List

Presentation File

Attendee List


Keynote Speakers

District Department of Energy & Environment (DOEE)
Jonathan Champion - Associate Director

Jonathan Champion is the Associate Director for Water Quality at the District Department of Energy and the Environment.  His Division implements programs to help protect and restore the District of Columbia’s rivers and streams.  These responsibilities include setting Water Quality Standards, monitoring and assessing water quality, tracking and reporting of District stormwater management activities to address MS4 Permit requirements, and long-range planning to meet Clean Water Act goals and objectives.
Jonathan has a Master’s degree in Environmental Science and Policy from Johns Hopkins University, a Bachelor’s degree in Biology from St. Mary’s College of Maryland, and over twenty years of experience in the environmental field.  Much of his career has focused on water quality issues, with a particular focus on the Chesapeake Bay watershed.  He has a particular interest in using science to inform policy and decision-making that improves the environment and peoples’ quality of life.

DC Water
AKishia L. Powell - Chief Operating Officer and Executive Vice President

Kishia L. Powell joined DC Water in May 2020, and serves as the Authority's Chief Operating Officer and Executive Vice President, overseeing all operating departments, as well as the Customer Service and Administration clusters.  Ms. Powell comes to DC Water from her previous role as Commissioner of the City of Atlanta’s Department of Watershed Management, where she had served since June 2016. With expertise in sustainable infrastructure management and utility operations, she has leveraged 22 years of experience in both the public and private sectors to successfully serve municipalities across the United States and London, England. 
As Atlanta’s Watershed Management Commissioner, she was responsible for oversight of $644M in annual operating expenditures and a five-year capital improvement plan of $1.26B including the Water Supply Program to secure Atlanta’s water future, which reached a significant milestone in April 2020 when water from the Chattahoochee River started filling the quarry.   As part of her tenure she worked to set the strategic direction of Watershed Management with a focus on financial resilience, improving service delivery, infrastructure investment, and workforce development including a partnership with the City of Atlanta’s Department of Corrections to reduce recidivism by hiring prerelease non-violent offenders as Watershed Trainees.  As a Global Water Leader, she led the Department to recognition in the inaugural class of Leading Utilities of the World during the Global Water Summit in Madrid, Spain in April 2017.
Prior to joining the City of Atlanta, COO Powell served as the Public Works Director for the City of Jackson, Mississippi where she was responsible for developing a programmatic strategy and master plan for Jackson’s Municipal Special Sales Tax-funded infrastructure improvements program including the “Greening the Gateways” initiative which led to the City’s award of a $16.5 million TIGER Grant in October 2015.  In 2008, she was appointed Bureau Head of Water and Wastewater for the City of Baltimore to lead a 1900-person agency with an annual operating budget of $300M and a six-year CIP of $2.2B serving 1.8M customers.  Based upon her work in Baltimore she was named the 2010 Maryland Water Environment Federation’s Water Hero.   
In 2018, COO Powell was nominated for the Center for Servant Leadership/Turknett Group Leadership Character Award; and she received the Pacesetter Award from the National Association of Minority Contractors.  In 2019 and 2020 she was recognized as one of Georgia’s Top 100 Influential Women in Engineering Georgia Magazine and received the WaterNow Alliance’s 2019 Impact Award for leadership in closing the country’s first publicly offered Environmental Impact Bond. On behalf of DC Water, COO Powell serves on the Board of the National Association of Clean Water Agencies as the Board Treasurer.  COO Powell is a licensed Professional Engineer in the District of Columbia, Virginia and Maryland.  She holds a Bachelor of Science degree in Civil Engineering from Morgan State University’s Clarence M. Mitchell, Jr. School of Engineering. Throughout her career she has maintained a strong sense of ethics and has distinguished herself as a leader, blending global reach, local knowledge, strategic thinking, and technical excellence to deliver sound solutions.


Virginia Panelists

Fairfax County Department of Public Works & Environmental Services (DPWES)
Martin Hurd - MS4 Program Coordinator, Stormwater Planning Division (SWPD)

Marty Hurd the MS4 Program Coordinator for Fairfax County, VA and has been with the Department of Public Works and Environmental Services (DPWES) for five years. Mr. Hurd has a BA and MS in Biology and has been a practicing PMP for fourteen years. During his 25 year career, Mr. Hurd has also worked for the state of Maryland (MDE & DNR), the Washington DC Dept. of Energy and Environment, and supported the EPA and several other states as a consultant.


Loudoun County Department of General Services
Dennis Cumbie - Water & Environmental Programs Division Manager

Dennis Cumbie is the Water & Environmental Programs Division Manager for the Department of General Services in Loudoun County, Virginia. 

He has a Bachelor of Science in Communications from Arkansas State University, and a Master of Science in Geology from the University of Tennessee, Knoxville.

He holds professional Certification as a Professional Geologist in Virginia and Kentucky.

He was originally hired by Loudoun County government In 2005, as the County Hydrogeologist, but over the years that role has changed to his current position as the Water & Environmental Programs Division Manager.  His current position oversees the County Stormwater Management Program, a Community Water & Wastewater Assistance Program, Energy Efficiency, and review of state and federal environmental legislation.  These programs have a total combined annual budget of over $9 Million, with another $36 Million set aside in a five-year capital improvement program. 

Additionally, his position serves as a coordinator of environmental programs and initiatives that cross several different departments, including Planning, Zoning, Environmental Health, and Building & Development.


Virginia Department of Transportation (VDOT)
Chris Swanson - Environmental Division Director

Chris Swanson recently took on the role of Environmental Division Director. Chris joined the VDOT Team in 2015 as MS4 Program Manager within the Location & Design Division, and subsequently became an Assistant State Location & Design Engineer. During his time in L&D, he was involved in the implementation of the Department's MS4 program, enhancement of the stormwater management standards and specifications, collaboration on the Environmental Performance Program, and advancement of resiliency initiatives.


Maryland Panelists

Maryland Department of Transportation State Highway Administration (MDOT SHA)
Ryan Cole, PWS - Division Chief, Water Programs Division, Office of Environmental Design

Ryan is Chief of the MDOT SHA Office of Environmental Design-Water Programs Division (OED-WPD) and has eighteen years of experience in the Natural and Water Resources fields. He was named Chief early this year after serving several positions in OED-WPD since its inception, including serving as the lead for the development and management of OED-WPD’s Full Delivery Stream Restoration series of contracts, which delivered over 140k linear feet of stream restoration within 3 years.
Ryan manages a dynamic group of staff, partners, and many associated contributors to deliver MDOT SHA’s NPDES/MS4 and associated TMDL obligations to maintain compliance with permit conditions. Through the efforts of this dynamic group, OED-WPD well surpassed MDOT SHA’s Restoration goals for the 2015 permit cycle. 


Maryland Transportation Authority (MDTA)
Peter Mattejat, PE - Environmental Manager - Office of Engineering & Construction, Environmental Division

Has over 30 years of experience in a broad range of environmental disciplines.  He was a consultant for 20+ years with local Maryland-area firms and worked closely with local and State agencies.  He joined the Maryland Transportation Authority in 2009 and manages the Environmental Division in the Office of Engineering & Construction.  He oversees the programs for Project Permitting, Stormwater, Natural Resources, and Large Storage Tanks.  A core activity is compliance with NPDES stormwater permits that includes Bay TMDL restoration.


Prince George's County Department of the Environment

Sudhanshu Mishra, PE, CFM, GISP - Assistant Associate Director, Stormwater

Sudhanshu Mishra, P.E., CFM, GISP serves as an Assistant Associate Director for the Prince George’s County Stormwater Management Division.  Mr. Mishra has over 20 years of professional experience in water resources engineering and management.  His expertise includes but not limited to; water quality analysis, MS4 NPDES programs, stormwater management design, stream restoration, hydrologic and hydraulic modeling, and analysis. In recent years, his experience has focused on various environmental program management for the Prince George’s County, Maryland. Mr. Mishra has developed and managed programs, reviewed plans, analyzed alternatives, regulations, and policies, prepared legislative ordinances, conducted public meetings and workshops. He is a registered professional engineer in Maryland and Virgina. Mr. Mishra is a Certified Floodplain Manager and GIS Professional. He earned Master’s degree in Biological Systems Engineering from Virginia Tech

Prince George's County Department of the Environment

Chambal Pandey, PE, GISP - Engineer IV, NPDES Program Coordinator

Chambal is a licensed professional engineer in the state of Maryland and Florida and has over 20 years’ experience in both public and private sectors in the field of water resources engineering. At the Prince George’s County, he is responsible for NPDES Program Management including watershed monitoring, TMDL analysis, and MS4 permit planning and implementation reports preparation. Outside of work, Chambal enjoys long drives, bicycling with his family, and having table tennis play nights with friends.


Howard County Department of Public Works
Mark Richmond, PE - Chief, Stormwater Management Division

Mark is the Chief of the Stormwater Management Division in the Howard County Department of Public Works. He has worked as a professional engineer in Maryland for over 35 years for both a private consulting engineering firm and for County government. Mark earned a BS degree in Civil Engineering from Lafayette College and an MS degree in Environmental Systems Engineering from Clemson University. His main area of expertise is in water resources, specifically leading projects in stream restoration, flood mitigation, stormwater management, and water quality treatment projects.



Virginia Panel Moderator
Thomas L. Frederick - Associate Vice President, Director Water/Wastewater Practice, Pennoni

Mr. Frederick serves as the Director of Water and Wastewater Practice for Pennoni Associates Inc (Pennoni) and works from Virginia.   He is responsible for business planning, marketing and research, work sharing across multiple offices, proposal and presentation development, partnering with specialty firms, and advancement of Smart Solutions and other major company initiatives. He brings over 42 years of engineering and management experience that includes drinking water, wastewater, solid waste and stormwater.

Prior to Pennoni Mr. Frederick was an accomplished executive with four different public sector agencies serving populations between 30,000 and 300,000, and also worked in consulting with a separate firm.   As an organizational leader he has been a strong advocate for strategic thinking and clear vision, outstanding customer service, effective public relations, environmental excellence, proven technological innovation, security and emergency preparedness, efficient and effective operations, strong financial position, and protection of public health and safety.  He now partners with clients to achieve these goals consistent with client objectives. 

Within Pennoni Mr. Frederick has championed effective utility management, financing of capital needs, rate setting that incorporates asset management performance, and risk and resilience assessments and emergency preparedness.

He is a member of several professional organizations to include the American Water Works Association, Water Environment Federation, American Consulting Engineers Council, and Virginia Association of Municipal Wastewater Agencies (VAMWA).  He is a Past President of the Virginia Water and Waste Authorities Association and Past Secretary of VAMWA and has served on advisory committees for the Virginia Department of Environmental Quality and a past Virginia Governor.

LinkedIn Profile -

Maryland Panel Moderator
Aaron Briggs, PE - Vice President, Mid-Atlantic Region Water Business Line, Prime AE Group, Inc.

Aaron Briggs is the Vice President of hte Mid-Atlantic Region Water Business Line for Prime AE Group, Inc. and is chair of the ACEC/MW Water Infrastructure Committee.  He is a Professional Engineer in Maryland, DC and Virginia who earned his Bachelor’s degree in Mechanical Engineering from Catholic University and his Master’s in Environmental Engineering from the University of New Haven.


Event Moderator
Norelis Florentino, P.E., MBA, PMP - Senior Project Manager, Gannett Fleming

Norelis M. Florentino, PE, MBA, PMP is Senior Project Manager at Gannett Fleming. Her experience includes resource/project management, hydraulic/hydrologic modeling and design for water/wastewater/stormwater projects, and training over one thousand engineers in various engineering software applications. She has a B.S. in Environmental Engineering from the University of Central Florida, an MBA from the University of Florida, and a Master of Project Management from Georgetown University. She holds a PE license in FL, VA, MD, and DC. She is the current Vice Chair for the ACEC/MW Water Infrastructure Committee.


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