JAMES A. BEACH, P.G.
James Beach is a Professional Geoscientist in Texas with 30 years experience in professional consulting in groundwater and surface water hydrology, water resources development and planning, groundwater well field design and development, permitting, environmental assessments, groundwater flow and solute transport modeling, quantitative contamination evaluations, and litigation support.
Mr. Beach has worked on regional water planning efforts across Texas and on groundwater projects throughout the US and abroad. His expertise in quantitative hydrogeology includes experience in assessment of groundwater availability and quality in many aquifer systems, evaluation of current and projected water supply and demand, long-term groundwater availability, groundwater/surface water interaction, groundwater model development, use and interpretation, development of water-management strategies, well field design, litigation support, and public/regulatory interaction. He has experience in groundwater rights/permitting, environmental damage claims, and other hydrologic issues. James has significant experience in application of numerical models to evaluate groundwater supply and contamination and has worked for private and commercial clients and regulatory entities.
JOHN W. NELSON, P.G.
John Nelson is a Professional Geoscientist in Texas and Registered Professional Geologist in Mississippi with 31 years of professional and practical consulting experience in hydrogeology and groundwater resources evaluation, planning and development, groundwater well and pump equipment design for municipal, public and industrial water supplies, water well construction consultation and field observations and consultation for existing water well and pumping equipment rehabilitation and repair.
TY DAVIDSON, P.E.
Tyler Davidson has over 20 years of experience in well design, construction, and rehabilitation; local and regional groundwater availability studies; hydrologic and water quality studies for industrial and municipal entities, as well as conservation districts.
His well experience includes water well design and construction in consolidated and unconsolidated formations, public water supply well design and rehabilitation, preparation of specifications and contract documents for public water supply wells, injection well construction, and pumping system design in a variety of public supply and environmental applications. He has experience with modern tools of groundwater and hydrologic analysis, including GIS, groundwater models, programming, aquifer testing methods, statistical analysis and relational databases.
ANDREW (ANDY) DONNELLY, P.G.
Andrew (Andy) Donnelly is a professional geoscientist with more than 35 years in groundwater resources, groundwater modeling, and water-supply investigations. Andy has conducted numerous studies on aquifers around the state of Texas, including the Edwards, Carrizo-Wilcox, Pecos Valley, Ogallala, Trinity Aquifer, and Gulf Coast aquifers, as well as many of the state’s minor aquifers.
Andy has conducted several state-wide groundwater resource evaluations which have included the assessment of the geology, hydrogeology, and water quality of all of the state’s major and minor aquifers, including work on the brackish groundwater resources across Texas. He has also provided technical consulting for numerous groundwater conservation districts across the state. He has been extensively involved with Texas joint groundwater planning and regional water planning for nearly 20 years.
CHRIS DRABEK, P.G.
Chris Drabek is a Professional Geoscientist with 22 years of groundwater consulting experience. He has completed many hydrogeologic studies and water supply projects throughout Texas, Alabama, Louisiana, Mississippi, New Mexico, and Oklahoma. Chris has extensive experience in the Gulf Coast and many aquifers across Texas. His expertise includes geologic and hydrogeologic evaluations, quantitative groundwater hydrology, groundwater modeling support, and GIS.
BILL STEIN, P.G.
William (Bill) Stein is a professional geoscientist with more than 35 years of hydrogeologic experience. Bill has conducted numerous groundwater studies on the Edwards, Trinity, Carrizo-Wilcox, Gulf Coast and many other aquifers throughout Texas. His expertise includes evaluation of groundwater quality and availability in many different types of aquifers.
Bill has supervised well drilling and construction of public water supply wells and other large and complex wells. He has conducted sampling and testing of a variety of wells and has assisted with specifications for well design, planning of drilling programs, supervised well construction, and tested public and private supply wells. He has provided oversite for geophysical logging and has used those logs to modify well design in order to construct productive wells. Bill has made evaluations utilizing existing geophysical logs from various sources to characterize aquifers and identify optimal well sites.
Bill has conducted numerous water availability studies of gravel, sand, karstic limestone and fractured volcanic rock groundwater systems. He has performed geochemical and water-quality analyses and studies and has completed groundwater modeling to assess future aquifer conditions. Bill has performed numerous pumping tests using data logging equipment and analyzed test data using a variety of industry methods.
PETER LYMAN, P.E.
Peter Lyman is a Professional Engineer in Texas with eight years of experience working in the groundwater supply consulting industry, providing design, construction management, inspection services, and project management support to public and private sector customers.
Peter’s technical areas of expertise include projects related to water well and pump rehabilitation to restore or increase well pumping rates, decrease sand production, and assess well casing structural failures; review of ground water well project submittals; evaluation of well, pump and motor performance tests of large-capacity water wells.
Additional experience includes water well design, development and preparation of specifications for small to large-capacity public supply wells, construction oversight of drilling, review of hydrogeological and aquifer data and geophysical logs, collection of water samples for laboratory testing of water quality parameters, field measurement of gas content from public supply wells and ground storage tanks.
YE HONG CHEN, Ph. D.
Ye-Hong Chen has a Doctor of Philosophy degree in Civil and Environmental Engineering at Louisiana State University with specialization in groundwater modeling, hydrogeology, and water resources.
Ye-Hong’s experience includes projects related to developing groundwater flow models to evaluate Mississippi River levee system, relief well performance, groundwater/surface water interaction, and quantitative groundwater resources for the Southern Hills Aquifer System; construction of hydrogeological models for Mississippi River Alluvial Aquifer and coastal aquifer; model calibration.
Additional experience includes relief well operations optimization, Louisiana groundwater pumping data management, comparative analysis between numerical and analytical modeling, comparative analysis between Gravity Recovery and Climate Experiment data and numerical solutions, Monte Carlo simulation, and well flow velocity monitoring
ISAAC JOHNSON
Isaac Johnson is a geoscientist with 2 years of experience in hydrogeology and groundwater modeling. Isaac received his Master of Science in Geology from the University of Arkansas and has worked as a consultant on projects related to groundwater flow modeling, subsurface mapping, contaminant transport modeling, impoundment dewatering, well field performance, and water availability assessments.
Isaac specializes in applying data and decision science to investigate a variety of hydrogeological problems, including groundwater-surface water interaction and water supply and demand forecasting. Isaac has used his expertise in Python programming to improve efficiency in data processing workflows and aid in the construction and calibration of numerical models.
JORDAN VEGA
Jordan Vega earned a Master of Science in Geospatial Sciences in Geology from Missouri State University where he specialized in hydrogeology, geochemistry, ArcGIS, and machine learning.
He began his professional career with the Missouri Geological Survey providing geological and technical guidance for environmental investigations related to groundwater contamination. His work there included reviewing groundwater use pathway evaluations submitted to the state, overseeing field operations, and subsurface assessments. Jordan went on to gain two years of experience as an environmental consultant performing soil and groundwater investigations, contaminant transport modeling, geochemical evaluations, and contaminant plume stability analyses.
Additional experience includes logging soil and rock, conducting rock quality designation, groundwater monitoring well design, well drilling and installation oversight, groundwater sample collection, measuring water quality parameters in the field, and exploration for limestone aggregate and fracking sands.