Water & Environmental Resources Group

Chief Scientist and Executive Director, Water and Environmental Resource Management Group

Graeme Aggett, PhD

Graeme Aggett is Chief Scientist and Water Resources Management Practice Lead with Lynker Technologies and has 22 years of wide-ranging experience in water resources management. As Water Science lead at Lynker he is focused on conceptualizing, developing, implementing and directing projects involving Hydrologic and Hydraulic Modeling; Forecasting; Water Decision Support System Design and Development; Natural Hazard and Risk Assessment; Climate Change Impact Assessment and Adaptation Planning; Geospatial Science and Technology Application and Development. He continues to maintain an active research and publishing program in this field, and has served on numerous review panels and has been a Principal Investigator on various federal research projects (NASA, NOAA and USDA). He is also an editor for several international journals. Graeme received his Ph.D. (Hydrology/Geomorphology) from the University of Southern California, and his M.S. (Hydrology/Engineering) and B.S. (Hydrology/Geomorphology/GIScience) from the University of Auckland.

Senior Water Resources Engineer

Ben Harding

Mr. Ben Harding has more than 40 years of diverse experience in water resources engineering. His practice has focused on the design, development, and use of hydrologic and river/reservoir system models, decision support systems, hydraulic models, water-quality models, GIS, and databases. Mr. Harding has been an innovator in the application of modern planning methods, including the use of network flow algorithms for planning and optimization, the use of paleo hydrology, the development of quantitative estimates of projected future hydrology and water demands based on climate model output, and the development and application of Monte Carlo techniques to quantify risk in water resources planning in a defensible and reliable manner. His experience includes thirty years of project management, successfully directing multi-disciplinary teams of engineers, scientists, and programmers in projects spanning the breadth of water resources planning and management.

Hydrologic Engineer/Scientist

Ryan Spies

Mr. Ryan Spies is a hydrologist with experience in environmental data analysis, statistical hydrology, hydrology-based geospatial assessments, and surface water modeling applications using an assortment of spatially-distributed hydrologic models. He has more than seven years of professional experience developing hydrometeorologic data resources for operational hydrological modeling systems for federal, state, and local clients. Ryan has worked on a variety of environmental service projects including drought & flood mitigation planning, flood inundation modeling and mapping, hydrologic & hydraulic model development, and decision support services applications. His professional interests include hydrologic forecasting, climate modeling data analysis, Python-based automated data analysis programming, and sustainable water resources planning and management.

Professional Hydrogeologist

Sophia Sigstedt

Ms. Sophia Sigstedt is a certified professional hydrogeologist by the American Institute of Hydrology and has a M.S. in Hydrology and a B.S. in Environmental Science and Biology. Ms. Sigstedt has ten years of professional experience including diverse experience in hydrology, water rights, water resources engineering, and water resources planning and management. She has been integral in several basin-scale water management studies involving development of hydrologic data, forecast of future water demands, and creation of planning models to investigate effects of changes in water management. Her work includes litigation support in a variety of water rights proceedings including historical consumptive use analysis, evaluation of surface/groundwater interactions, groundwater modeling, conjunctive administration of surface water and groundwater rights, stream depletion analysis, development of protective terms and conditions, settlement negotiations, and expert witness testimony.

Senior Scientist

Cameron Wobus, PhD

Cameron (Cam) Wobus is a broadly trained Earth scientist with expertise in geomorphology, surface and groundwater hydrology, and numerical modeling and data analysis. He supports Federal, state and non-government clients on topics including climate change impacts assessment, environmental impacts of hard rock mining, jurisdictional limits of the Clean Water Act, and natural resource damage assessment (NRDA). Cam has assisted federal, state and private clients with understanding climate change impacts on flooding, permafrost, water availability, and recreation. He has also assisted the State of Louisiana in both the injury assessment and restoration planning for the Deepwater Horizon oil spill, including supporting inter-agency discussions and settlement negotiations. Cam also regularly publishes and presents his work at international meetings. His over 30 peer-reviewed publications have appeared in journals including Nature, Geophysical Research Letters, Climatic Change, Global Environmental Change, and the Journal of Geophysical Research. Cam holds a PhD in earth sciences from MIT, an MS in hydrogeology from Dartmouth College, and a B.A. in geology and economics from Bowdoin College.

Water Resources Engineer

Page Weil, PE

Mr. Page Weil is a registered Professional Engineer in the State of Colorado. He earned his B.S. in Civil Engineering and his M.S. in Civil Engineering with a Water Resources focus from the University of Colorado at Boulder. In addition, he is a Certified Floodplain Manager (CFM) and a Licensed GIS Professional (GISP). He is skilled in R, Python, SQL and a host of modeling packages (StateMod, RiverWare, WRF Hydro, ArcPro). Professionally his focus has been in applied statistics for climate change, forecasting and water supply modeling efforts. Mr. Weil has applied his skills to develop decision support tools for local, state and federal agencies across a range of planning applications. Mr. Weil’s clients have used his work to justify new infrastructure, prepare for uncertainty in future climate and understand the stability of their water supplies. Outside of the office, he is a semi-professional volunteer mountain rescuer and spends most of his free time somewhere in the mountains of Boulder County.

Water Resources Scientist

Bill Szafranski

Mr. Bill Szafranski is a water resources engineer with Lynker Technologies with responsibilities spanning surface water hydrology, watershed modeling, flood forecasting, statistical hydrology and environmental chemistry. He brings nine years of scientific and engineering expertise to Lynker’s water resources practice.

Mr. Szafranski is currently working with the National Weather Service building and calibrating reservoir models for flood forecasting purposes. Most recently, he has served as the lead engineer for the Lynker team in their river restoration master planning services. He has worked on a number of climate change analysis projects and has worked with state agencies to simulate and analyze their water resource allocation options. Mr. Szafranski has used his statistical hydrology expertise to generate hydrologic traces for multiple projects and his environmental chemistry skills have been applied to several stormwater projects.

Database Developer/Hydrologic Modeler

Roger Wolvington

Mr. Roger Wolvington is a software engineer with over 25 years of experience programming applications for water resources modeling and environmental database development. His expertise lies in conceptualizing, designing, and creating software tools to support decision makers in the water resources field. His work has involved surface water, water quality, and pipe network modeling. Mr. Wolvington has designed and developed software programs that simulate the physical and administrative properties of river basin systems. He has performed software quality assurance for components of larger river hydrologic models used for planning and operational studies. He has developed river modeling database applications using Microsoft Excel, Microsoft Access, SQL, and proprietary binary database systems. Mr. Wolvington is an expert in C, C#, Visual Basic (and Visual Basic for Applications), and Python.

Water Resources Scientist

Adam Wlostowski, PhD

Adam Wlostowski is a water resources scientist specializing in watershed hydrology and solute fate and transport. Dr. Wlostowski has eight years of experience in academic research and is a recent addition to the Lynker team. His work has been published in leading environmental journals, including Water Resources Research, Limnology and Oceanography, Geophysical Research Letters, Geomorphology, and Journal of Geophysical Research. His skill set includes environmental solute transport modeling, environmental data collection, data analysis, and Geographical Information Systems (GIS). Key water resources work has involved synthesizing long-term hydrological data sets to quantify basin-scale water budgets, quantifying reactive solute transport dynamics in rivers and wetlands, and installing/maintaining hydrological sensors networks to measure stream discharge, water quality, soil moisture, and soil temperature.

Water Resources Scientist

Keith Jennings, PhD

Dr. Jennings is a water resources scientist with expertise in the creation and analysis of large-scale hydroclimatic data products. He employs hydrologic models, on-the-ground observations, and remote sensing data along with advanced statistical methods and GIS analyses to evaluate water availability and quality. Past the raw analysis, he emphasizes the communication and visualization of results in intuitive, understandable ways, a skill honed through years of teaching and mentorship. He has published his research in high-impact journals such as Nature Communications and Water Resources Research, and presented at conferences geared towards water managers and researchers alike. Recently he has focused on making his work as accessible as possible through open-access publishing as well as publicly available code and datasets. On the outreach front, he has worked on the local level with K-12 students and educators as well as on the international level as an expert reviewer for the Intergovernmental Panel on Climate Change and several scientific journals.

Water Resources Engineer

Rachel Bash

Rachel Bash is a Junior Water Resources Engineer with the Lynker team. She recently graduated with her Masters in Environmental Management from Duke University. Throughout her coursework, she gained expertise in data analysis, hydrology, and managing environmental financial risk. Her thesis work focused on financing water infrastructure in shrinking cities. During her graduate work, Rachel partook in several applied research and academic projects, including: analyzing water variability and financial risk for users of Colorado-Big Thompson Project water, developing an interactive dashboard for the New Mexico Bureau of Groundwater and Mineral Resources well data, and assessed the implications and provided policy analysis on well curtailment in the South Platte River Basin.

Geospatial Developer

Brad Bates

Mr. Brad Bates is a Geospatial Developer with expertise in Python, data analysis/visualization, web map/app development, water and marine resources, V&V, and satellite remote sensing. He is an expert in the geoprocessing and visualization of massive datasets in real-time web mapping environments. He supported the NOAA National Water Center’s Geo-Intelligence Division within the Office of Water Prediction for almost 3 years, where his primary role was to develop a real-time inundation mapping service using the National Water Model. During his MS work, he partook in several applied research and academic projects, including: estimation of threats to recreational fisheries in Central America, improving official boating channels through submerged aquatic vegetation in the Everglades, satellite remote sensing of historical floods using optical and radar systems, historical alluvial and aeolian sediment transport, and fluvial geomorphology. Brad regularly presents his work at national meetings, in oral and poster formats.

Lewis

Lewis is Lynker’s Boulder-based office dog. He’s always keen to get out in support of field and stream work, though his main role in the company is to greet visitors with a a big smile and tail wag.