Angelia Parham joined Gwinnett County as Support Services Department Director in May 2013. She previously served as the Public Works Director for the city of Sandy Springs and assisted with the startup of several other newly incorporated cities during her tenure at CH2M Hill. Angelia was formerly the Deputy Director and Interim Director for the city of Roswell’s Transportation Department. Prior to that, she conducted research with the Texas Transportation Institute at Texas A&M University. Her earlier experience includes positions with the Town of Farragut, Tennessee; the University of Tennessee Transportation Center; Friendswood Development Company, a subsidiary of Exxon Corporation; and as a cooperative education student with the Federal Highway Administration.
Angelia is a professional engineer and earned both her Master of Science and Bachelor of Science in civil engineering from the University of Tennessee, Knoxville. She was named 2008 Public Works Director of the Year by American City and County Magazine. Angelia has been a member of the Roswell Recreation Commission since 2012. She served as a member of the Transportation Research Board’s Operational Effects of Geometrics Committee for nine years, and she previously served in leadership roles in the American Society of Civil Engineers, American Public Works Association, and the Optimist Club of West Knoxville.
Angelia and her husband, John, have four grown children.
Susan Canon joined Gwinnett County in April 2015 as Deputy Director of Support Services. Her career includes experience in the public and private sector. Prior to joining Gwinnett County, Susan served as Assistant City Manager and Director of Community Development for the city of Brookhaven. She also served as Deputy Director of Community Development for the city of Johns Creek and assisted with startup operations for the cities of Milton, Chattahoochee Hill Country, and Peachtree Corners in Georgia and Bonita Springs, Florida, through public private partnerships with CH2M HILL. Susan also served as Land Use Manager with the law firm of Lipscomb, Johnson, Sleister, Dailey, and Smith in Cumming and as Real Estate Manager and Project Manager with Bellsouth Mobility in Atlanta. Susan began her career with the city of Roswell where she held various management and leadership positions including Planning and Zoning Director, a role appointed by the mayor and city council.
Susan earned a Bachelor of Science in geography with an emphasis in city planning from the University of West Georgia, and she is a Certified Local Government Manager.
Susan and her husband, Eddie, have two grown children.
Leonard Ganther joined Gwinnett County as a Deputy Director of Support Services in January 2020. His focus is strategic asset management for facility and fleet assets. His previous experience includes serving as Deputy Director for the Facilities and Property Management Department in Harris County, Texas, where he directed master plan development and implementation, space and furniture standards development, parking lot resurfacing, and major design build projects. Leonard also worked as the Facilities Manager for the Charlotte Area Transit System where he developed and implemented facilities operations and maintenance standards.
Leonard earned a Master of Business Administration in management and systems management from the University of Southern California and a Bachelor of Business Administration in general business from the University of South Carolina. He is also a military veteran, having served as a Captain in the U.S. Air Force. Leonard is a former professional member of the International Facility Management Association, a board member of Building Owners and Managers Association, and a consulting member and advisor to several industry publications.Leonard is a licensed pilot and enjoys golf, tennis, and spending time with his grandchildren.
Facility Construction Division Director:
David Mogge became the Facility Construction Division Director in January 2019. In this role, Dave manages a team responsible for design and construction of new general government facilities such as fire stations, police stations, and libraries; capital maintenance projects such as roof replacements, HVAC replacements and upgrades, and plumbing upgrades; and major facility renovations. Dave began his career with Gwinnett County in 2013 as an Engineering Coordinator in the Support Services Department. He also serves on the Gwinnett County Environmental Sustainability Committee.
Prior to joining Gwinnett County, Dave served as a project engineer with the U.S. Army Corps of Engineers. He started his career as a Civil Engineering Officer in the United States Air Force and remains active in the United States Air Force Reserve as a commissioned officer.
Dave is a professional engineer and a certified energy manager, and he earned both Master of Engineering and Bachelor of Science in Civil Engineering degrees from the University of Florida.
Dave and his wife, Adrienne, have one son.
Fleet Management Division Director:
Ron Adderley joined Gwinnett County as Fleet Management Division Director in July 2016. In this role, Ron manages the purchase and maintenance of approximately 3000 vehicles and pieces of equipment; fuel delivery of over 5,000,000 gallons per year at 11 fuel sites; and the sale of surplus vehicles, equipment, and other items totaling over $1,000,000 per year.
Ron previously served as the Field Operations Manager and Capital Improvement Program Manager for the city of Centennial, Colorado, and as the Field Services Manager for the city of Sandy Springs while with CH2M HILL. Prior to that, he was the Construction and Maintenance Division Manager for the city of Roswell Transportation Department and was a Construction Project Manager with the Georgia Department of Transportation. Ron also served as an original member and supervisor of GDOT’s H.E.R.O. program in metro Atlanta.
Ron and his wife, Jane’t, have one daughter.
Fiscal and Solid Waste Management Division Director:
Susan Paul became Fiscal and Solid Waste Management Division Director in March 2019. In this role, Susan provides financial management support for the Department’s budget, contracts, fixed assets, procurement, billing and receivables, and administers the County’s Solid Waste Program.
Susan began her career with Gwinnett County in 2003 in the Department of Financial Services. Since that time, she has held a variety of positions within the Finance Department. Most recently, she served as a Project Coordinator in the Office of Strategy and Performance Management. Prior to joining Gwinnett County, Susan was a public service faculty member with the University of Georgia.
Susan earned a Master's in Public Administration from the University of Georgia and a Bachelor's of Arts in Economics from Randolph-Macon Woman’s College in Lynchburg, Virginia. Susan has secured both Level I and Level II Finance Officer Certifications from the University of Georgia. Additionally, she has obtained the designation of Certified Public Finance Officer from the Government Finance Officers Association.
Outside of work, Susan enjoys time with family and friends.
Operations and Maintenance Division Director:
Douglas Jones joined Gwinnett County as Operations and Maintenance Division Director in January 2020. In his role, he manages the operations and maintenance of more than 250 County facilities including HVAC, electrical, plumbing, carpentry, grounds, and housekeeping services.
His career includes experience in the development, construction, and property operations industries where he successfully completed approximately $2 billion of large-scale commercial projects for companies such as Trammell Crow Company, Microsoft, Bank of America, and ExxonMobil. In addition, he served as the primary project liaison with more than 25 government municipalities in the southeastern United States and Canada. His recent operational experience includes managing a 20,000-acre luxury community in South Carolina and a large retirement community with responsibility for 200 employees and a $30 million annual operating budget.
Douglas earned a Bachelor of Science in civil engineering from the University of North Carolina, Charlotte. He has served as a board member for multiple community associations and has contributed to various committees throughout his career.
Outside of work, Douglas enjoys spending time keeping up with his twin boys.