All Staff

Abshire, Mark, M.S., P.E, Senior Geotechnical Engineer

Years of Experience: 25+

Education:

  • M.S., Civil Engineering, Colorado State University, 2002
  • B.S., Engineering Science (Space Engineering), Colorado State University, 1992

Specialties:

  • Licensed engineer in 6 states (AK, AZ, CO, NM, UT, WA)
  • Mine site reclamation design
  • Mine facilities design including tailings impoundments, heap leach pads, process solution ponds, and waste rock disposal sites
  • Water impoundment and dam design
  • Geo-Civil and public works design
  • Foundation Design
Andrews, Jason, M.Eng., P.E., Vice President, Project Geotechnical Engineer

Years of Experience: 15

Education:

  • M.Eng., Geotechnical Engineering, Colorado State University, Fort Collins, Colorado (2004)
  • B.S., Civil Engineering, Colorado State University, Fort Collins, Colorado (2003)

Specialties:

  • Licensed in 6 states
  • Geotechnical engineering pertaining to mine site remediation and operations
  • Slope stabilization
  • MSE, anchor, and soil nail retaining wall design
  • Forensic investigations and expert testimony
  • Impoundment and embankment design
  • Quality assurance and quality control oversight relating to geotechnical and environmental projects
  • Expansive and collapsible soils investigations
Arrazola, Miriam, Project Assistant

Years of Experience: 10+

Education:

  • B.S., Business Administration, California State University (2014)

Specialties:

  • Creating engineering reports
  • Project support
  • Office administration
  • Document management
Bossler, Rosalie, M.S., P.G., Senior Staff Hydrogeologist

Years of Experience:   11

Education:

  • M.S., Geology, California State University, Fresno, CA (2017)
  • B.S., Earth Science, University of California, Santa Cruz, CA (2011)

Specialties:

  • Geologic mapping, cartography, GIS, and Surfer modeling
  • Mineral exploration
  • Conceptual site model development
  • Soil and Groundwater Contamination Studies
  • Groundwater/Surface Water Interaction Studies
  • Monitoring well design, installation, and development and aquifer testing
  • Environmental Emergency Response
  • Environmental data management
  • Stormwater Pollution Prevention Plans/Best Management Practices

Capabilities Highlights:

  • Environmental Permitting and Compliance
  • Remedial Investigation and Site Characterization
  • Feasibility Studies
Brockway, Jim, P.E., Senior Electrical Engineer

Years of Experience: 30+

Education:

  • B.S., Electrical Engineering, Colorado State University, Fort Collins, Colorado (1984)

Specialties:

  • Licensed engineer in 9 states
  • Project management
  • Water and wastewater treatment power and control design
  • Industrial, oil and gas power and control design
  • Grounding system design
  • Motor power and control system design
  • Electrical inspections
  • Electrical system modeling
  • Solar power
  • Electrical utility projects
  • Substation design
Brown, L. Clint, M.S., P.E., Vice President, Senior Dam and Reservoir Engineer

Years of Experience: 18

Education:

  • M.S., Civil Engineering, Colorado State University (2004)
  • B.S., Civil Engineering, Colorado State University (2001)

Specialties:

  • Dam design and rehabilitation
  • Geotechnical investigations
  • Dam inspections
  • Emergency spillway design
  • Reservoir inflow design flood analysis
  • Dam outlet design
  • Construction specifications preparation
  • Construction oversight
Bullington, Kim, Proposal & Marketing Administrator/Project Assistant

Years of Experience: 20+

Education:

  • B.S., Colorado Technical University Online, Business Administration & Management (2009)

Specialties:

  • Desktop Publishing and Graphic Design
  • Customer Service
  • Marketing
  • Administration
Chalona, Melissa, P.E., CHMM, Project Environmental Engineer

Years of Experience: 25+

Education:

  • B.S., Environmental Engineering, University of Florida, Gainesville, Florida (1995)

Specialties:

  • Mine site reclamation permitting and compliance
  • Stormwater drainage design, Stormwater Management Plan development and inspection
  • Clean Water Act (CWA) section 404 Permits and National Pollution Discharge Elimination System (NPDES) Permits
  • Phase I and Phase II Environmental Site Assessments (ESAs)
  • Spill Prevention Control and Countermeasure Plans (SPCC)
  • Asbestos and demolition projects
  • Environmental investigations
  • Environmental monitoring and data analysis
  • Fuel Terminal Expansion Permitting

Capabilities Highlights:

  • Environmental Monitoring and Compliance
  • Permitting and Compliance
  • SPCC and SWPPP Plans
ChaMPION, PETER, P.E., Project WATER RESOURCES Engineer

Years of Experience: 10+

Education:

  • B.S., Civil Engineering, Colorado State University, Fort Collins, Colorado (2011)
  • A.A., Computer Aided Design, Mesa State College, Grand Junction, Colorado (2004)

Specialties:

  • Water treatment plant infrastructure development
  • Design drawing development
  • Project management
  • Construction management
  • Field engineering
  • AutoCAD
Chao, Geoff, Ph.D, P.E., Senior Geotechnical Engineer

Years of Experience: 20+

Education:

  • Ph.D., Geotechnical and Geoenvironmental Engineering,
    Colorado State University, Fort Collins, Colorado (2007)
  • M.S. Geotechnical and Geoenvironmental Engineering,
    Colorado State University, Fort Collins, Colorado (1995)
  • B.S., Department of Civil Engineering,
    National Chung-Hsing University, Taiwan (1990)

Specialties:

  • Expansive soils evaluation and design
  • Forensic studies and remediation design
  • Unsaturated flow computer modeling
  • Deep foundation design
  • Mine site remediation design
  • Mine facility design
  • Water impoundment and dam design
  • Construction management services for the construction of large scale remediation systems
  • Geotechnical instrumentation
Clement, Esther, E.I.T., Staff Civil Engineer

Years of Experience: 1

Education:

  • B.S., Civil Engineering, Colorado State University (2022)

Specialties:

  • Soil analysis
  • Field investigation
  • Litigation support
  • Permitting
Coons, Kevin, P.E., Senior Chemical Engineer

Years of Experience: 35+

Education:

  • B.S., Chemical and Petroleum Engineering, Colorado School of Mines, Golden, Colorado (1986)

Specialties:

  • Design, permitting, construction oversight soil and groundwater systems
  • Process, facilities and remediation programs
  • Regulatory interface, negotiations
  • Engineering evaluation cost analysis
  • Construction management, preparation of procurement and construction specifications

Capabilities Highlights:

  • Environmental Monitoring & Compliance
  • Groundwater Remediation
  • Remedial/Mitigation Evaluations and Design
  • Permitting and Compliance
Davis, Tyler, P.E., Staff Civil Engineer

Years of Experience: 6+

Education:

  • B.S., Civil Engineering, Colorado State University, Fort Collins, Colorado (2016)

Specialties:

  • Construction site observation and oversight
  • Pavement analysis and design
  • Municipal roadway design and rehabilitation
  • Municipal utility design
  • Geotechnical investigations

Capabilities Highlights:

  • Quality Assurance/Quality Control
  • Infrastructure & Development
  • Development & Forensics
Dilliott, Nicolas, Staff II Civil Engineer

Years of Experience: 3+

Education:

  • M.S., Civil and Environmental Engineering, Stanford University (2019)
  • B.S., Civil Engineering, University of California (2018)

Specialties:

  • Remedial design, permitting, and construction oversight of soil and groundwater systems
  • Site grading design
  • Wet and dry utility design
  • Storm water design, management, and implementation
  • Preparation of RFP’s, reports and engineering specifications
  • Hydrology

Capabilities Highlights:

  • Engineering Design
  • Waster and Wastewater Treatment
Doyle, Georgia, M.S., Technical Editor

Years of Experience:   22

Education:

  • M.S., Hydrology/Hydrogeology, University of Nevada, Reno, NV (1993)
  • B.S., Hydrology and Water Resources, University of Arizona, Tucson, AZ (1988)

Specialties:

  • Technical editing: hydrology, geochemistry, biology, ecology
Dudginski, Richard, Project Environmental Scientist, Corporate health & safety officer

Years of Experience: 30+

Education:

  • B.S., Environmental Science, Pennsylvania State University, (1988)

Specialties:

  • Project management
  • Construction oversight
  • Water treatment – bench testing, pilot study, design, construction, start up, and operation
  • Site investigation and characterization
  • Environmental sampling, monitoring, and data analysis
  • Regulatory compliance and monitoring
  • Electrical power systems
  • Instrumentation and control systems
  • SCADA systems
  • Asbestos abatement
  • Health and safety - policy, oversight, training, and PPE

Capabilities Highlights:

  • Environmental Monitoring and Compliance
  • Health & Safety
Durrant, Chris, P.E., Water Treatment Engineer

Years of Experience: 24

Education:

  • B.S., Chemical Engineering, University of Utah, Salt Lake City, Utah, (1998)

Specialties:

  • Process design
  • Treatment technologies
  • Produced water infrastructure and treatment
  • Equipment design
  • Construction oversight and project management
  • Bench and pilot water treatment testing
  • Solids dewatering

Capabilities Highlights:

  • Water and Wastewater Treatment Design
  • Industrial Water Treatment
  • Water Storage Planning and Delivery
  • Process/Pipeline Design
  • Electrical Systems
Fosdick, Alan, M.S., Project Environmental Scientist

Years of Experience: 30+

Education:

  • M.S., Computer Information Systems, University of Phoenix, 1995
  • B.A., Chemistry, University of Northern Colorado, 1984

Specialties:

  • Management and technical leadership for environmental and analytical chemistry projects
  • Water quality permitting, compliance and regulatory negotiations
  • Characterization and remediation of impacted sites
  • Organic analyses and method development in multimedia samples
  • Software development and data management
  • Data analysis and review
Garcia, Denise, M.S., P.G., Project Engineering Geologist

Years of Experience: 14

Education:

  • M.S., Earth and Atmospheric Science, Purdue University, West Lafayette, Indiana (2008)
  • B.S., Geology, Winona State University, Winona, Minnesota (2006)

Specialties:

  • Project management
  • Engineering geology
  • Slope stability and landslides
  • Foundation remediation
  • Forensic studies
  • Expansive and collapsible soils
  • Retaining walls
  • Field investigation including drilling borings, instrumentation, and geologic mapping
  • Seismic hazard analyses

Capabilities Highlights:

  • Geologic Analyses
  • Geologic Hazards
  • Development & Forensics
  • Ground Stabilization
Giesenhagen, Catherine, Staff Chemical Engineer

Years of Experience: 2

Education:

  • B.S., Chemical Engineering, Colorado School of Mines, Golden, CO (2018)

Specialties:

  • Application of engineering principles to environmental remediation projects
  • Process control design, drawing development, and equipment sizing
  • Design of groundwater and soil contamination systems
  • Feasibility studies and remediation
Graham, Kellan, Senior Engineer Technician and Laboratory Manager

Years of Experience: 6

Education:

  • Art Institute of Pittsburgh, Pittsburgh, PA (2016)

Specialties:

  • ACI Concrete Field Technician Certified
  • ACI Compressive Strength Certified
  • WYDOT Soils and Aggregate Certified
  • WYDOT Portland Cement Concrete Certified
  • WYDOT Asphalt Concrete Certified
  • LabCat Level A, B, and C Certified
  • WAQTC/Soils Inspector Certified
Hardin, Phil, M.S., P.E., Senior Structural Engineer

Years of Experience: 35+

Education:

  • M.S., Structural Engineering, University of Illinois, Champaign, Illinois, 1985.
  • B.S., Civil Engineering, University of Illinois, Champaign, Illinois, 1984

Specialties:

  • Structural design of water and wastewater treatment plants
  • Structural design of water pump stations
  • Structural and civil design of electrical transmission and distribution structures
  • Water-holding structures and other environmental structures
  • Structural design of concrete, masonry, steel, and aluminum structures
  • Structural seismic design and seismic structure retrofit
  • Structural design of industrial, mining, oil, and natural gas facilities
  • Foundation design
  • Earth retaining structures
  • Small bridge design and existing bridge inspections
  • Irrigation diversion and control structures
  • Water impoundment and dam design
  • Geo-Civil and public works design
  • Forensic structural evaluations
  • Project management
  • Construction inspection and oversight
Heckmann, Clorisa, Project Assistant

Years of Experience: 25+

Education:

  • B.S., Regis University, Health Care Administration, Denver, CO (2015)

Specialties:

  • Office administration duties
  • Creating engineering reports
  • Project work
  • Document management
Henry, Atley, Senior Staff Piping Designer

Years of Experience:   25+

Education:

  • B.S., Industrial Design, ITT Technical Institute, San Bernardino, CA (1998)
  • A.S., Computer Aided Drafting, ITT Technical Institute, San Diego, CA (1995)
  • Mentorship: Basic Electronics, Process Systems, Automated Systems, Manufacturing Process Systems and Cogeneration Technology

Specialties:

  • Design of soil and groundwater remediation facilities design including process, mechanical, electrical, civil, and instrumentation
  • Industrial design
  • Product development
  • Engineering, manufacturing, tooling and production process
  • 3D modeling
  • AutoCAD Civil 3D and Plant 3D
Hite, Emmett, Senior Engineering Technician and Construction Services Manager

Years of Experience: 11

Education:

  • University of Wyoming, Laramie, WY (2008)

Specialties:

  • American Concrete Institute Field Testing – Technician Grade 1
  • ICC Reinforced Concrete Special – Inspector Associate
  • WAQTC - Soils Inspector
  • Nuclear Gauge Operations
  • Radiation Safety Officer (RFO)

Capabilities Highlights:

  • Construction Materials and Laboratory Testing
  • Environmental and Regulatory Compliance
  • Ground Stabilization
  • Water and Wastewater
Hoehn, Dylan, M.S., P.E., Senior Staff Civil and Hydrologic Engineer

Years of Experience: 7

Education:

  • M.S., Hydrology Science & Engineering, Colorado State University (2016)
  • B.S., Civil & Environmental Engineering, University of Tennessee, Knoxville (2014)

Specialties:

  • Dam design and rehabilitation
  • Risk assessment of dams
  • Spillway design
  • Channel hydraulics
  • Watershed hydrology
  • Construction oversight

Capabilities Highlights:

  • Hydraulics and Hydrology
  • Industrial Water Treatment and Management
  • Groundwater Stability
  • Permitting and Compliance
  • Engineering and Design
Kawano, Micah, Staff Civil Engineer

Years of Experience: 1

Education:

  • B.S., Civil Engineering, San Diego State University, San Diego, CA (2021)

Specialties:

  • Pipe design
  • Construction planning and scheduling
  • Hydrology/Stormwater design
  • Open channel flow design
Keller, Stephen, AUTOCAD I & engineering technician

Years of Experience: 3+

Education:

  • B.S., Construction Management, Colorado State University, Fort Collins, CO (2011)

Specialties:

  • ACI Concrete Field Testing Technician – Grade 1
  • APNGA certified
  • Environmental sampling
  • AutoCAD
  • Civil 3D
  • Construction observation and oversight
Lawrence, Errol, M.S., P.G., Senior Hydrogeologist

Years of Experience: 38

Education:

  • M.S., Geological Engineering, Colorado School of Mines, Golden, CO (1990)
  • B.S., Geology, Northern Arizona University, Flagstaff, AZ (1980)

Specialties:

  • Groundwater flow and solute transport modeling
  • Aquifer test design, implementation, interpretation
  • Groundwater remediation system design & evaluation
  • Aquifer monitoring system design
  • Groundwater contamination investigation and analysis
  • Environmental litigation support
Lester, Robert (Chris), Senior Staff Electrical Designer II

Years of Experience: 38

Education:

  • Dallas County Community College, Dallas, Texas (1980)

Specialties:

  • Electrical power and controls design
  • Industrial, commercial and manufacturing projects
  • Water and wastewater treatment
  • Petroleum refining, mining, food and beverage projects
Liles, Christopher, M.S., P.E., Senior Civil Engineer

Years of Experience: 24

Education:

  • M.S., Civil Engineering, San Diego State University, San Diego, California (2000)
  • B.S., Civil Engineering, University of Washington, Seattle, Washington (1995)

Specialties:

  • Remedial design, permitting, and construction oversight of soil and groundwater systems
  • Construction and Municipal stormwater design and implementation
  • Best management practice and low impact development (LID) design
  • Quality assurance and quality control oversight relating to environmental projects
  • Preparation of procurement bid documents and engineering specifications

Capabilities Highlights:

  • Engineering and Design
  • Environmental monitoring and compliance
  • Stormwater management
  • Permitting and compliance
  • Dam design, rehabilitation, and inspection
  • Water storage planning and delivery
Mackenzie, Jamie, AP, HR and Payroll Manager

Years of Experience: 6

Education:

  • B.S., Health and Exercise Science, Colorado State University, Fort Collins, CO (1998)

Specialties:

  • Human resource management
  • Accounts payable
  • Payroll input and management
  • New employee on-boarding and orientation
Macrina, Jim, Project Controls and Instrumentation

Years of Experience: 46+

Education:

  • Foxboro School on Instrumentation (1984)
  • Radar and Weapons Control Systems, USAF (1966-1970)
  • Engineering Mathematics, Northeastern University, Boston MA (1965-1966)
  • Electrical Engineering courses, Metropolitan State College, Denver CO (1972-1974)
  • Associates in Business CCD, Red Rocks, Denver, CO (1975)

Specialties:

  • Process and instrumentation design
  • Controls design
  • Instrumentation loop design
  • PLC integration
  • Distributed controls systems (DCS)
  • Complete I and C construction design management
  • Water and wastewater treatment design
  • Motor control systems
  • Oil and gas process design
  • Pump station controls
  • Groundwater recovery
Monahan, Valerie, Accounts Manager

Years of Experience: 35+

Education:

  • M.B.A., Accounting, Rowan University
  • B.S., Accounting, Rutgers University

Specialties:

  • Accounts Payable
  • Accounts Receivable
  • Taxes – Public & Private
  • Payroll
  • General Ledger
  • Financial Statements and Audits
  • HR
  • Billing
Nelson, Erik, P.E., Vice President, Principal Civil and Geotechnical Engineer

Years of Experience: 35+

Education:

  • B.S., Civil Engineering, Colorado State University, Fort Collins, Colorado (1984)

Specialties:

  • Geotechnical engineering
  • Water retention dams
  • Tailing dams for coal, uranium, and copper mine tailings
  • Pavement analysis and design
  • Landfill stabilization and restoration
  • Deep foundations for multi-story buildings and grain elevators
  • Large scale grading projects for both commercial and residential projects
  • Design, construction, and operation of remediation systems for the treatment of soil and groundwater contamination
  • Permit applications including construction permits, aquifer protection permits, solid waste landfill permits, and environmental resource protection permits
  • Disposal and handling of low level radioactive wastes
  • Backflow prevention and potable water studies for mines and industrial facilities
  • Remedial actions for EPA Superfund sites
  • Construction management services for the construction of large scale remediation systems

Capabilities Highlights:

  • Feasibility Analyses and Studies
  • Remedial/Mitigation Evaluations and Design
  • Site Assessment and Investigations
Nelson, John, Ph.D, P.E., P.Eng., D.GE., Principal Geotechnical Engineer

Years of Experience: 50+

Education:

  • Ph.D., Civil Engineering, Illinois Institute of Technology (1967)
  • M.S., Civil Engineering, Illinois Institute of Technology (1962)
  • B.S., Civil Engineering, Illinois Institute of Technology (1960)

Specialties:

  • Expansive soil evaluation and design
  • Forensic studies and remediation design
  • Landslide analysis and mitigation
  • Tailings management
  • Tailings dams
  • Water retention dams
  • Deep and shallow foundation design
  • Water movement in unsaturated soils
  • Mine site reclamation design
  • Mine facilities design
Overton, Daniel, M.S., P.E., P.Eng., D.GE., President and Principal Geotechnical Engineer

Years of Experience: 37

Education:

  • M.S., Civil Engineering (Geotechnical Engineering), University of California, Los Angeles (1988)
  • B.S., Civil Engineering, Colorado State University, Fort Collins, Colorado (1985)

Specialties:

  • Licensed engineer in 17 States and 2 Canadian Providences
  • Mine site reclamation design
  • Mine facilities design including tailings impoundments, heap leach pads, process solution ponds, and waste rock disposal sites
  • Water impoundment and dam design
  • Geo-Civil and public works design
  • Foundation remediation design
  • Expansive soils design
  • Geotechnical instrumentation

Capabilities Highlights:

  • Engineering and Design
  • Forensic Studies
  • Litigation Support
  • Mining Reclamation
  • Remedial/Mitigation Evaluations and Design
Pacella, Ron, Senior CADD Designer

Years of Experience: 25+

Education:

  • Phoenix Institute of Technology, Computer aided drafting and design, Phoenix, AZ (1990)
  • Phoenix Institute of Technology, Architectural drafting and design, Phoenix, AZ (1989)

Specialties:

  • Working drawing interpretations
  • AutoCAD
  • Civil 3D
  • Surveying
  • Construction experience
Park, Rachael, M.S., P.E., Senior Staff Geotechnical Engineer

Years of Experience: 6

Education:

  • M.S., Civil/Geotechnical Engineering, Oregon State University, Corvallis, Oregon (2015)
  • B.S., Civil Engineering, Oregon State University, Corvallis, Oregon (2013)

Specialties:

  • Geotechnical and environmental consulting
  • Foundation design and remediation
  • Forensic investigations
  • Expansive soils design
  • Field and laboratory investigations
  • Slope stabilization
  • Retaining wall design

Capabilities Highlights:

  • Geotechnical Design
  • Development & Forensics
  • Environmental and Regulatory Compliance
Puentes, Kenneth, P.G., CHG, Senior Hydrogeologist

Years of Experience:  36

Education:

  • B.S., Geology, San Diego State University, San Diego, CA (1987)
  • Completed M.S. Course Work, San Diego State University, San Diego, CA (1997)

Specialties:

  • Risk Management and Strategic Planning
  • Vapor Intrusion Assessment and Mitigation
  • Regulatory Negotiations and Cleanup Goal Development
  • Public Participation/Community Outreach
  • Soil and Groundwater Contamination Studies
  • Emergent Compound Evaluation and Management
  • Conceptual Site Model (CSM) Development / Numerical Modeling
  • Feasibility and Treatability Studies
  • Remedial Action, Optimization and Performance Review

Capabilities Highlights:

  • Vapor Assessment and Mitigation
  • Site Assessment and Investigations
  • Remedial Investigations and Site Characterization
  • Remedial/Mitigation Evaluations and Design
Roads, Eric, E.I.T., Staff Environmental Engineer

Years of Experience: 2+

Education:

  • M.S., Civil & Environmental Engineering, Colorado State University (2020)
  • B.S., Environmental Engineering, University of Colorado Boulder (2014)

Specialties:

  • Materials testing
  • Laboratory and field geotechnical engineering work
  • Inspection and Installation oversight
  • Processing and analysis
Ross, Christopher, M.S., P.G., CHG, Senior Hydrogeologist

Years of Experience:   35+

Education:

  • M.S., Geology/Hydrogeology, San Diego State University, San Diego, CA (1987)
  • B.S., Geology, State University of New York at Stonybrook, NY (1983)

Specialties:

  • Soil and Groundwater Contamination Studies
  • Emergent Compounds including Per- and Polyfluoroalkyl Substances (PFAS)
  • Vapor Intrusion Assessment and Mitigation
  • Conceptual Site Model (CSM) Development / Numerical Modeling
  • Feasibility and Treatability Studies / Remedial Design
  • Remedial Action, Optimization and Performance Review
  • Regulatory Negotiations and Cleanup Goal Development
  • Groundwater Sustainability / Basin Water Quality Management
  • Non-Potable Water Reuse
  • Municipal Supply Well Protection
  • Environmental Permitting
  • Risk Management
Runnells, Tim, Principal Water Treatment Designer

Years of Experience: 25+

Education:

  • B.S., Hydrogeology, Utah State University, Logan, Utah (1992)

Specialties:

  • Water treatment
  • Aquifer testing
  • Analysis
  • Surface and groundwater sampling and characterization
  • Baseline chemistry investigations
Schaut, Rob, P.E., Senior Staff Geological Engineer

Years of Experience: 22+

Education:

  • B.S., Geological Engineering, Colorado School of Mines, Golden, CO (1994)
  • M.A., Youth and Family Ministry, Denver Seminary, Denver, CO (2004)

Specialties:

  • Mine facility and reclamation design
  • Characterization of mine and mine waste facilities
  • Expansive and collapsible soils
  • Forensic geotechnical studies
  • Subsurface investigation
Scholl, Nadja, P.G., Senior Staff Hydrogeologist

Years of Experience:  6

Education:

  • B.S., Geology, University of California, San Diego, CA (2017)

Specialties:

  • Financial forecast and risk assessment
  • PFAS sampling plans
  • Support treatment system design
  • Support conceptual site model development
  • Database creation and management
  • GIS, Strater, Surfer, and MapWindow GIS Modeling
  • Field coordination

Capabilities Highlights:

  • Remedial Investigations
  • Feasibility Studies
  • Vapor Intrusion Assessment
  • Remedial Action, Optimization and Performance Review
  • Environmental Permitting
Schwall, James, P.E., Senior Chemical Engineer

Years of Experience: 33

Education:

  • B.S., Chemical Engineering, University of California at Davis, California (1988)

Specialties:

  • Remedial design, permitting, and construction oversight of soil and groundwater systems for treatment of solvents, 1,4-dioxane, and perchlorate
  • Facility design skills including process, mechanical, control and instrumentation design
  • Managed and optimized ongoing operations of soil and groundwater remediation systems
  • Quality assurance and quality control oversight relating to environmental projects
  • Preparation of procurement bid documents and engineering specifications

Capabilities Highlights:

  • Mechanical Design
  • Operational Design
  • Remedial Action and Design
  • Industrial Water Treatment
  • Water and Wastewater Treatment
Smith, Duane, M.S., P.E., Principal Civil and Geotechnical Engineer

Years of Experience: 45

Education:

  • M.S., Civil Engineering, University of Arkansas (1975)
  • B.S., Civil Engineering, University of Arkansas (1974)

Specialties:

  • Water impoundment and dam design
  • Irrigation diversion and control structures
  • Geo-Civil and public works design
  • Municipal and transportation design and construction support
  • Foundation design
  • Structural design of water and wastewater treatment plants
  • Structural design of electrical transmission and distribution structures
Smith, Natalie, Staff Hydrogeologist

Years of Experience:  2

Education:

  • B.S., Earth Sciences, University of California, Santa Cruz, CA (2020)

Specialties:

  • Hydrology field work and sampling
  • Geologic hazard reporting and mapping
  • Database management
  • Surfer modeling
  • Well and tensiometer implementation
Stearns, Karen, P.E., Vice President, Senior Water Resources and Civil Engineer

Years of Experience: 30

Education:

  • B.S., Civil Engineering, New Mexico State University, Las Cruces, New Mexico (1992)

Specialties:

  • Project, program and construction management
  • Storm water quality program management and EPA/CWA NPDES and 404 Permitting
  • Master drainage plans and capital improvement plans for municipalities
  • Municipal and transportation drainage analysis/design and construction support: Hydrology, riverine modeling, culverts, storm drain systems, bridges, storm water storage facilities, levees, regional water quality structures, grade control or drop structures, sediment traps, erosion protection, and bank and channel stabilization.
  • Emergency response recovery for drainage infrastructure
  • FEMA Flood Insurance Rate Maps and National Flood Insurance Program
  • Federal, commercial, and industrial facility and community development (e.g., roads, water, sewer, grading, drainage, parking) and program management

Capabilities Highlights:

  • Site Civil Design
  • Development & Forensics
  • Transportation
  • Ground Stabilization
  • Water and Wastewater
Stockdill, Ian, Staff Civil Engineer

Years of Experience: 4

Education:

  • B.S., Civil Engineering, Colorado State University, Fort Collins, CO (2018)

Specialties:

  • Geotechnical investigations
  • Civil design
  • Water quality and sampling
  • Well installation
  • Hydraulic structure design

Capabilities Highlights:

  • Field Engineering
  • Dam Design and Rehabilitation
Thompson, Corby, Staff Electrical Engineer

Years of Experience: 3

Education:

  • B.S., Electrical Engineering, Colorado State University (2022)

Specialties:

  • Control systems
  • Design, building and maintenance
  • Radar concepts and theory
  • Digital image and signal processing
Tocher, Richard, M.S., P.E., Principal Geotechnical Engineer

Years of Experience: 40+

Education:

  • M.S., Civil Engineering (Geotechnical Engineering), University of Colorado, Boulder, Colorado (1978)
  • B.S., Civil Engineering, Rensselaer Polytechnic Institute, Troy, New York  (1977)

Specialties:

  • Dam and reservoir design
  • Geotechnical instrumentation
  • Foundation and slurry wall design
  • Commercial and mid-rise buildings
  • Mine facilities design including tailings impoundments, process solution ponds, and waste rock disposal sites
  • Mine site reclamation design
  • Public works projects
Wahl, Lisa, P.E., Project Chemical Engineer

Years of Experience: 17+

Education:

  • B.S., Chemical Engineering, University of California, San Diego, California (1988)

Specialties:

  • Remedial design and permitting for soil and groundwater systems
  • Construction oversight for soil remediation
  • Regulatory document preparation and interface
  • Feasibility and treatability studies
  • Work plans and oversight for pilot tests, pre-design investigations
  • Preparation of bid documents and engineering specifications
  • Sustainability evaluation for remedial alternatives

Capabilities Highlights:

  • Environmental Monitoring & Compliance
  • Feasibility Studies
  • Remedial Action, Optimization and Regulatory Closure
  • Permitting and Compliance
White, AUSTIN, engineering technician

Years of Experience: 1

Education:

  • A.A., General Studies, Laramie County Community College, Cheyenne, Wyoming (2012)

Specialties:

  • Laboratory testing
  • Construction materials observation
Yanez, Anne, Accounting Assistant

Years of Experience: 20+

Education:

  • Rocky Mountain Accounting and Business Center Certificate

Specialties:

  • Accounts Payable
  • Accounts Receivable
  • Human Resources
  • Office Management

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