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Our Team
Andrea Tailacq with survey gear

Andrea Taillacq

Licensed Professional Engineer; CO, WY, UT, NM
M.S. Engineering Systems—Civil Specialty, CO School of Mines
B.S. Engineering—Mechanical Specialty

Andrea has over twenty years of experience with project management, hydrology, geomorphology, stream restoration, and water rights. After working for federal and state agencies and small and mid-sized consulting firms Andrea and Greg formed Tailwater Limited in July 2016.

Andrea has extensive experience in the field collecting hydrographic data and compiling hydrographic and climatic data to evaluate trends to determine historic use, and evaluate changes resulting from change of water use. She has performed over 1,000 streamflow measurements and reviewed thousands of discharge measurements performed by others for completeness and accuracy. Andrea has developed stage-discharge and index-velocity rating curves for real-time computation of streamflow.

Andrea is the lead programmer for Tailwater Limited, developing a variety of tools and scripts to facilitate completing projects on-time and within budget in addition to helping other engineers analyzed data and develop restoration plans with Stream Tools, station offset, and others.

Greg Taillacq holding GPS

Greg Taillacq

Engineer in Training
M.S. Environmental Science and Engineering, CO School of Mines
B.A. Double Major Biology and Environmental Science, Western State College, CO

Greg has over twenty years of experience related to fisheries, geomorphology, environmental assessment, and river restoration. After working for a large consulting firm for five years he formed Tailwater Limited with Andrea. Greg is most well known as being "the CAD" guy and has spent many years drafting plans for numerous other small and large businesses. Greg leads the content development for the Stream and Process school on the Teachables platform and is the creater of most of the shorts on the Tailwater Limited YouTube page. Greg specializes in developing complete and constructable river restoration plans.

Photo of John Whiteman

John Whiteman

Restoration Ecologist
B.S. Geology (Environmental Engineering concentration), James Madison University, Harrisonburg, VA

John has a strong interdisciplinary foundation across ecology, geomorphology, soil science, hydrology, and geotechnical engineering. Paired with effective management, communication, and organizational skills, John brings both detail-oriented execution and a holistic perspective to every project. John is proficient in soil classification, materials testing, RTK GPS survey, construction oversight, and is a FAA Part 107 remote pilot for Small Unmanned Aircraft Systems (SUAS). He has led investigations and remediation efforts for oil and gas contamination in upland, stream, and wetland environments, conducting soil, air, and water sampling for reporting to municipal and private clients. His experience ranges from the Chesapeake watershed to the Rocky Mountain region, with hands-on experience in ecological restoration by assessing, designing, installing, and maintaining restoration sites. Responsible for leading aquatic resource surveys, botanical and invasive species surveys, ecological characterization studies, and riparian health assessments, John has coordinated permitting efforts and restoration design at the federal, state, local and private level. He prides himself on understanding the interactions among vegetation, soils, and hydrology in varying systems of topography, disturbance, and climate. John’s design skillset includes producing clear, technically sound plan sets using GIS and Civil 3D, as well as developing seed mixes, plant palettes, soil amendments, and technical specifications. He continues to deepen his understanding of streamflow, sediment/soil dynamics, and ecology to apply the latest science to each project he supports.

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