Gwyn-Mohr Tully


Mr. Tully, co-founder of Tully & Young, is a licensed attorney in California and has extensive experience in surface and subsurface hydrology, law and policy.  Mr. Tully consults with public agencies and private clients on developing and implementing water resource management plans and individual water projects.  In this context, Mr. Tully has conducted water rights investigations; assessed contractual water obligations; negotiated water transfers; prepared water settlements; evaluated surface and subsurface water supplies; prepared regulatory, legal, and political assessments; researched historical water rights and supplies; and conducted and coordinated high-level stakeholder interactions.  .

Greg Young


Mr. Young is a registered civil engineer in California, with water law, water policy and regulations, and water economics experience and expertise. With nearly 30 years of extensive experience, Mr. Young guides clients through the dynamic integration of legal, economic, political and technical elements that course through all water resource planning and management challenges – identifying and implementing practical solutions that meet their fundamental needs. Mr. Young’s foundational expertise from extensive work throughout California on projects ranging from innovated water transactions, to demand and supply characterization and forecasting, to drafting legally defensible documents, enables development of creative and comprehensive solutions. Mr. Young has worked on hundreds of projects for public sector clients, numerous private clients (individuals to multi-national corporations), and varying non-government advocacy groups. Through all of this work, Mr. Young focuses on providing objective-based facts that help his clients make informed decisions regarding the reliable management of their vital water resources.

Kris Olof

Mr. Olof has significant experience evaluating and forecasting customer water demands, and building and running complex hydraulic infrastructure system models.  Mr. Olof has expert technical and computer skills and is able to easily manipulate spreadsheets, computer code, and geo-spatial mapping programs.  Coupling these skills with practical construction and engineering knowledge, Mr. Olof is at ease communicating and interacting with in-field operators to senior managers, and across many skill sets – a vital skill that aids calibration and validation of hydraulic system models.  Mr. Olof’s education and experience in water resources engineering and planning, water quality management, and cartography provide an ideal foundation for the specialties offered by Tully & Young.  Combining previous experience in rural small businesses, residential construction, farming and the California wine industry, with an engineering degree gives Mr. Olof a unique perspective to help clients assess and solve water resource management and planning challenges.


Andrea Kearney


Ms. Kearney has over 20 years experience in providing executive level administrative support within private corporations.  Ms. Kearney has previously served as the Business Manager to a Construction Company, Fundraising Coordinator to a Non-Profit Agency, Vocational Rehabilitation Counselor for Injured Workers, and Vocational Rehabilitation Coordinator/Legal Assistant  to  multiple Attorney’s.