August 2021 - Water / Wastewater Luncheon

Presentation File & Attendee List




Our Speakers


DC Water

David L. Gadis - Chief Executive Officer (CEO) & General Manager

David L. Gadis serves at Chief Executive Officer and General Manager of DC Water, one of the largest and most highly regarded water utilities in the nation. Mr. Gadis oversees a one billion dollar annual budget and leads a workforce of approximately 1,200 employees. He joined DC Water in May 2018 and is implementing a new strategic plan with a redefined vision and focused priorities. That includes improving both customer satisfaction and employee engagement, and a commitment to performance planning and business process improvement.
In addition, Mr. Gadis has formed a Stakeholder Alliance of city residents, business owners, members of the faith community and others to help address the twin challenges of rising rates and aging infrastructure. Under his leadership, DC Water is delivering on its $2.7 billion commitment to build a massive system of deep tunnels and other infrastructure to nearly eliminate combined sewer overflows to the Potomac and Anacostia Rivers and Rock Creek in the nation’s capital.
Mr. Gadis brings 20 years of industry experience to his current role, having previously served as Executive Vice President of Veolia North America and as CEO and President of Veolia Water Indianapolis. He was that utility’s first African American CEO/President and the first African American CEO to lead a major utility in Indianapolis.
Mr. Gadis has been a frequent presenter at utility and government services conferences, including the U.S. Conference of Mayors, speaking on both Underground Infrastructure and Managing Utilities, as well with the National League of Cities and the National Association of Public Private Partnerships. His expertise in demonstrating how private firms can help municipalities as valued partners in securing significant cost savings, has earned him a reputation among city and municipal leadership as an innovative leader and a trusted partner who truly understands their challenges and desired goals.
Mr. Gadis is Chairman of the Board of Blue Drop, DC Water’s nonprofit sales and marketing affiliate. He also current serves on the boards of the National Association of Clean Water Association (NACWA), the National Forum of Black Public Administrators (NFBPA) and the DC Utility Infrastructure Advisory Council.  Mr. Gadis has previously served on the boards of the Indianapolis Urban League, Fifth Third Bank, Central Indiana Corporate Partnership, Indianapolis Sports Corporation, Indiana Business Diversity Council, Greater Indianapolis Chamber of Commerce, the Indiana Chamber of Commerce, and Indianapolis Downtown Inc.
Gadis attended Pike High School in Indianapolis, where he was the school’s first Indiana All Star basketball player. He earned a basketball scholarship to Southern Methodist University and was a four-year basketball player and team captain before graduating from SMU with a B.A. in Marketing Communications. Gadis was inducted to the Indiana Basketball Hall of Fame in 2014.


DC Water

Korey R. Gray - Director, Compliance and Business Development

As DC Water’s Director of Compliance and Business Development, Korey Gray leads the Authority’s supplier diversity program. With over 15 years of experience in the field of supplier diversity and inclusion, Korey is never satisfied with the status quo.  His relentless pursuit of improved diversity and inclusion demonstrates leadership in advancing DC Water’s innovative approach to building relationships with diverse suppliers in every aspect of its purchasing of goods and services.

Under Korey’s leadership, DC Water’s Board of Directors recently approved a major overhaul of its Business Development Plan, the first of its kind since 2009.  The Board’s approval was the culmination of two years of developing a foundation that will foster a new standard of doing business with DC Water. To ensure the transparency of this process, Korey led an ambitious public engagement process that involved listening sessions with the community and recommendations from DC Water staff, diverse suppliers, prime contractors, government agencies and advocacy organizations.

The revised Business Development Plan formalizes the Authority’s best practices for monitoring minority- and women-owned businesses; creates new opportunities for certified local small business enterprises; and adds additional protections for certified firms that are performing on DC Water projects. Two critical initiatives are introduced in the Plan: The Local Small Business Reserve (LSBRP) and the Disadvantaged Business and Women-owned Business Enterprise (D/WBE) Programs.   The LSBRP, based upon a pilot initiative that was launched in November 2019, opens new pathways for certified local small businesses to develop partnerships with DC Water’s Departments. The D/WBE Program applies to non-federally funding architectural /engineering, construction and goods/services projects. The goal of the program is to increase the number of certified disadvantaged and women-owned firms who are eligible to compete and perform on DC Water contracts. Further, the revised Business Development Plan places a strong emphasis on effective prime contractor engagement with diverse suppliers and establishes a mentor-protégé program. 

To make certain that the concerns of certified firms are heard, Korey was instrumental in ensuring that DC Water’s supplier diversity and inclusion efforts were placed directly within the Office of the CEO and General Manager. This alignment assures the diverse supplier community that the implementation and accountability measures of the Business Development Plan are unencumbered. The position alignment has led to the Business Development Program’s increased visibility within DC Water and among its industry peers.

Also among his key achievements, Korey successfully created and launched DC Water’s Apprenticeship Program, which launched in 2019.  The multi-trade training program focuses on five (5) high demand careers:  Heating, Ventilation and Air Conditioning, Plumbing, Quality Assurance (Fleet Maintenance), Water Utility Services and Wastewater Operator Training. 

As an industry leader in the water utility industry, Korey is highly sought out for his strategic insight and successful innovative business practices.  Korey is a native Washingtonian and a proud Howard University alumnus. He enjoys spending quality time with his family and engaging in robust conversations regarding current and historical news events.


DC Water

David M. Parker, P.E. - Director, Wastewater Engineering

David Parker serves the Authority as the Director of Wastewater Engineering. Mr. Parker has over 30 years of experience in planning, design, and construction management of wastewater and water treatment facilities, pumping stations, and related infrastructure.  Prior to joining DC Water, he worked in the consulting engineering field as a design manager, project manager, and office leader. 

He holds Master's and Bachelor's degrees in Civil Engineering, both from Virginia Tech.  He is also a registered Professional Engineer in the District, Maryland, Virginia, and North Carolina.

Fairfax County Department of Public Works & Environmental Services

Chris Mata, PE - Senior Engineer III, Wastewater Design and Construction Division | Capital Facilities 

Chris Mata serves as a Sr. Engineer III within Fairfax County's Wastewater Design and Construction Division, under the Department of Public Works and Environmental Services where he manages wastewater collection projects from planning through construction.  Chris has been in the water/wastewater industry for roughly eight years working in both the private and public sectors.  He received his degree in Environmental Engineering from Florida International University and recently received his Master of Science degree in Civil and Infrastructure Engineering from George Mason University.  Chris is a registered professional engineer in the Commonwealth of Virginia. 

Loudoun Water

Thomas Lipinski, P.E., Director of Planning & Engineering

Thom is the Director of Planning and Engineering with Loudoun Water where he has been for over 15 years.  Prior to Loudoun Water, Thom worked in the consulting engineering field, with Parsons and Hazen and Sawyer in the areas of planning, design and construction of water and wastewater projects.  Thom has a Bachelor of Engineering Degree from Youngstown State University in Ohio and is a registered Professional Engineer.

Loudoun Water

Sarah Lothman, P.E., Director of Planning & Engineering

Sarah Lothman - Sarah is Loudoun Water’s Manager of Capital Design where she has been for over 7 years. She has a Bachelor of Science degree in civil engineering from The University of Texas at Austin and a Master’s degree in environmental engineering from The University of North Carolina – Chapel Hill. She is a registered Professional Engineer in Virginia. Prior to joining Loudoun Water, she worked in engineering consulting. She is thrilled to be joining the group today in person!


WSSC Water

Michael T. Harmer, P.E., Chief Engineer

Mike Harmer is an innovative Engineer with a broad base of infrastructure experience ranging from consulting, construction, and owner administration.  He has managed various types of projects ranging from sewer system rehabilitation, wastewater treatment, storm water flood mitigation, and buildings/ facilities.  
He is employed as the Chief Engineer for WSSC Water responsible for a budget of over $580 million, over 370 employees, and approximately 100 contract employees.  He was a past WSSC Water Regulatory Services Division Manager and their Development Services Division for many years. During his stay at Regulatory Services he managed the Pretreatment, FOG, Cross Connection, and Plumbing Design Reviews/ Inspections Programs.     In the Development Services Division, he was responsible for permitting, hydraulic capacity, pump station and water/ sewer extension design reviews, and various aspects of the development process producing numerous Customer Service improvements.   Prior to WSSC Water, he worked for New Castle County where he worked in Engineering and Operations.  He managed the County $300 million Brandywine Hundred Sewer Rehabilitation Program removing excessive I/I, was recognized for ideas in energy savings, and was selected as the State of Delaware Government Engineer of the Year.  He has designed or led the design on several design and build projects.  His engineering expertise is augmented with his extensive field experience gained while working with his tools and operating heavy machinery in industrial and site/environmental construction.   

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