Council Members
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Councilor Randall Ryti

Randall Ryti, Chair

Term Ends: 12/31/2022


Randall was elected to the County Council in the November 2018 general election and elected as Chair in 2021. Randall has lived in Los Alamos since 1992. He came to start a small business, Neptune and Company, with four other scientists. In addition to helping lead a successful small business and raising a family in Los Alamos, Randall has volunteered for community organizations such as the Pajarito Environmental Education Center Board and the Los Alamos County District Science Fair committee. He was a Los Alamos County Transportation Board member from 2012-2016 (Chair from 2014-2016).

Randall earned a bachelor's degree in biology from University of California Los Angeles and a Ph.D. in biology from University of California San Diego. Before retiring from Neptune and Company in 2018, he worked on basic and applied environmental problems, including ecological and human health risk assessments for the Los Alamos National Laboratory, the Hanford Site, and other clients.

He enjoyed campaigning as a first-time candidate, particularly meeting voters while knocking on doors, and is committed to getting and using community input to help make decisions while on the Council.

Send Email: [email protected]

Councilor Derkacs

Denise Derkacs, Vice-Chair

Term Ends 12/31/2024
Denise was elected to the County Council in the November 2020 general election. Prior to her election, she served on the Community Development Advisory Board from its formation in 2018 to 2020.

Denise is retired from a 20-year career at Los Alamos National Laboratory, where she served as Chief of Staff to senior-level management and was involved in all aspects of programmatic and operational initiatives. She previously worked as a technical writer and as a journalist at newspapers in Texas, Iowa, and Hawaii. She holds a B.A. in Journalism from Rutgers University and an M.A. in Organizational Communication from the University of New Mexico.

Born and raised in New Jersey, Denise and her husband have lived in 10 states and settled in New Mexico in 1982. Together they raised their three sons here in Los Alamos County.

As a member of the Council, Denise hopes to advance County efforts in three key areas: housing development to address the need for low- and middle-income housing, commercial sustainability to enable small businesses to thrive, and community services to support growth and preserve quality of life. 

Send Email: [email protected] 

Councilor IzraelevitzDavid Izraelevitz, Councilor

Term Ends: 12/31/2022
David Izraelevitz was first selected by the Los Alamos County Council to fill the unexpired term of Councilor James Hall, who left his position to be State House District 43 Representative. David was then elected for a full term in the November 2014 elections and re-elected for another full term in the November 2018 election.

David is a first generation American, immigrating to the US at the age of eleven from Uruguay, South America. He moved to Los Alamos in 1995 from Boston with his wife Terry, and his three children Joseph, Jacob and Adam.

David has been involved in many community organizations in Los Alamos, including the Lunch Buddies Program at Barranca Mesa Elementary, the local middle school MathCounts team, the Los Alamos Employees' Scholarship Fund, the J.R. Oppenheimer Memorial Committee, and the local section of the Institute of Electrical and Electronics Engineers. He has also been very active in the Los Alamos Jewish Center, serving in a variety of board positions, including President for several terms. David was a founding Board member and is current President of the Los Alamos Community Foundation.

He was a member of the Los Alamos County Planning and Zoning Commission from 2004-2009, serving as chair 2008-2009, and was a member of the Los Alamos County Charter Review Committee until his appointment to the Los Alamos County Council in July 2011. He was elected Council Chair in January 2017. He is also on the Executive Committee of the New Mexico Municipal League, serving as President for 2018-2019.

David telecommuted the first ten years living in Los Alamos, developing computer algorithms for the U.S. Army and the Defense Advanced Research Projects Agency (DARPA). He joined LANL in 2005, where he recently retired from his position as Research Engineer and Team Leader. He received the B.S. degree, Magna Cum Laude, in Computer and Systems Engineering from Rensselaer Polytechnic Institute, and the S.M., E.E., and Sc.D. degrees in Electrical Engineering and Computer Science from MIT.

Send Email[email protected]
Councilor Sara Scott

Sara Scott, Councilor

Term Ends: 12/31/2022

Sara was elected in the November 2018 general election. She served as Chair of the Council in 2019 and was selected by a vote of Council to serve again as Chair in 2020.

Sara has lived in Los Alamos for 30 years - raising children, working at Los Alamos National Laboratory (LANL), and volunteering. She values Los Alamos County’s recreational, cultural, and educational opportunities. She also values communication, diversity and transparency in government; her campaign focused on engagement with the community – through knocking on doors, participating in meetings of community organizations, meeting with county staff, and attending local events. These interactions, as well as those during her Council tenure, will help inform her actions on the County Council. 

Sara is retired from a 24-year career at LANL and works as private consultant. At LANL she contributed to a broad range of initiatives through technical and leadership positions in the areas of nuclear energy, nuclear nonproliferation, national security, strategic program development, R&D management, facility development, international engagement and promotion of effective collaborations across multiple disciplines and organizations. She gained leadership experience as a scientist, Division Leader, and Program Director at LANL; responsibilities included budgets of >100M$/year, >400 staff, diverse facility operations, and constructive engagement with federal program leaders. 

Sara received her PhD in Inorganic Chemistry from Iowa State and was a National Science Foundation-NATO Postdoctoral Fellow at the Max-Plank-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany, where she focused on developing new routes to intermetallic hydrogen storage materials. 

Send Email:[email protected]
Councilor Reagor

David Reagor, Councilor

Term Ends 12/31/2024
David Reagor was elected to the Council in the November 2020 election. He previously spent 32 years as a postdoctoral fellow and staff member at Los Alamos National Laboratory. During that time he participated in the Parks and Recreation Board and was also on the Canyon Vista Pool board. During his career at the laboratory David primarily worked with industrial partners on applied projects that led to patents and commercial licenses.

David entered politics to improve the environment for small businesses and to develop the economic potential of the community. The quality of life in our small town is often dependent on the success of local health care providers and small vendors such as restaurants. The primary responsibility of the county is to ensure that these businesses can thrive and continue to provide their services to the public.

Send e-mail: [email protected]
Keith Lepsch

Keith Lepsch, Councilor

Term Ends: 12/31/2024


Los Alamos County Council appointed Keith Lepsch on April 5, 2022, to complete the unexpired term of Councilor Sean Williams.

A registered nurse for almost 23 years, Keith has been a 911 services paramedic in Washington DC and Denver and a hospital educator, Director of all Surgical Services, and Director of outpatient infusion clinic at the Los Alamos Medical Center. As of 2018, Keith took on a new position as a flight nurse/preceptor/dual role for Classic Air Medical (the red and white EMS helicopter service in town).

Keith moved to Los Alamos in 2012. He and his wife have a son enrolled at the Los Alamos Public Schools. They love living in Los Alamos, riding bicycles and enjoying community amenities such as the East Park pool, the Aquatic Center, concerts at the pond, the ice rink and the libraries.

On the council, Keith will listen, build consensus, and demonstrate kindness to ensure that Los Alamos continues to be a fantastic place to raise a family and be an amazing community for everyone.  

Send e-mail: [email protected]
Melanee Hand

Melanee Hand, Councilor

Term Ends: 12/31/2022


The Los Alamos County Council appointed Melanee Hand on January 25, 2022, to complete the unexpired term of Councilor James Robinson. 

Having lived and worked in Los Alamos County during the past 38 years, Melanee brings to the Council a broad understanding of community issues related to construction, facility planning, land use development and environmental compliance. She retired from the Los Alamos National Laboratory and is currently working part-time for a local business that her husband owns.

Additionally, Melanee volunteered on community non-profit and county advisory boards, including the Parks and Recreation Board, Environmental Sustainability Board, Fuller Lodge Historical Advisory Committee, Open Space and Parks Advisory Subcommittee, and Landscape Review Committee. She holds a master's degree in Organizational Management from the University of Phoenix, a bachelor's degree in Environmental Design from the University of New Mexico, and she is a New Mexico registered Landscape Architect.

Send e-mail[email protected]

Send Email to All Council: [email protected]


Contact Information
County Manager's Office 
Jacqueline Salazar