Overview of Water and Natural Resources Assessment, Management, and Restoration

Geosyntec has built its Water and Natural Resources practice to address our clients’ most challenging regulatory, sustainability, and restoration issues. Geosyntec has built its Water and Natural Resources practice to address our clients’ most challenging regulatory, sustainability, and restoration issues.

At the center of Geosyntec's Water and Natural Resources practice is a collaborative group of nationally recognized scientists and engineers dedicated to achieving the balance between the built and natural environments. Their practice specialties represent a diverse array of disciplines, including geomorphology, ecology, biology, statistics, construction management, computer science, and engineering.

Our practitioners are at the forefront of policy analyses, regulatory compliance, and technology applications that promote sustainable water resources management and ecosystem restoration.

Erosion and Sediment Control

Soil erosion, and its resulting sedimentation, has the ability to cause widespread damage to waterways and impact drinking water quality, endanger wildlife resources, and hinder the flood-control capacity of lakes and reservoirs. For the most challenging projects and construction programs, Geosyntec has extensive experience developing effective stormwater pollution prevention plans (SWPPPs), erosion and sediment (E&S) control and re-vegetation plans, hydrologic and hydraulic models, and designs for stormwater best management practices (BMPs).

Groundwater and Surface Water Supply Studies and Development

Geosyntec provides a wide range of specialized services in the areas of water resources, water supply development, and water conservation. Our scientists, engineers, and permitting specialists provide our clients with integrated solutions that balance the needs for water supply development and ecological health. The holistic approach our practitioners provide regarding the design and implementation of effective and sustainable solutions identifies and addresses known and unknown issues related to surface water and groundwater supplies.

Water and Natural Resources Conservation and Restoration

As the leading practitioners in water and natural resource laws and regulations, resource protection, and resource rehabilitation, our practitioners can address the most challenging regulatory, sustainability, and restoration issues facing our clients. Due to their diverse array of disciplines in engineering, science, and project management, we can provide a holistic approach for our clients' conservation and restoration issues that is unmatched in the industry.

Watershed and Stormwater Management

We specialize in conceptualizing, implementing, and permitting management systems for developed and undeveloped watersheds and stormwater runoff for public and private entities. This often-challenging task for governments and companies from scientific, regulatory, and policy perspectives is addressed by assembling multidisciplinary teams of our respected and experienced practitioners who are regarded as industry leaders for their innovative work in watershed and stormwater management.

Advancing the State of the Practice

Geosyntec uses state-of-the-practice tools, such as remote sensing; innovative water quality models; sampling designs based on statistical analyses, hydromodification assessments, and hydrodynamic models; and endangered species investigations to assess water quality impacts and develop appropriate solutions.

Our practitioners are industry leaders in the application of continuous hydrologic simulations coupled with hydrodynamic models to evaluate long-term hydraulic, sediment transport, and ecological characteristics of aquatic resources of interest. This capability is an improvement over traditional approaches, which are based solely on design-event analysis, in that it provides a greater degree of accuracy when designing aquatic habitats for species with varying hydraulic threshold requirements. Hydrodynamic modeling also provides greater assurance that a particular design solution (e.g., design of structures, sediment transport, flood plain characteristics, and bank stability) produces a stable and functional system.

Our Consultants

  • Lisa Austin, P.E.

    Lisa Austin is a Principal Engineer based in California with more than 25 years of experience focused on water quality and stormwater management. Lisa's practice focuses on National Pollutant Discharge Elimination System (NPDES) permitting; municipal stormwater program planning and implementation; development project water resource master planning and environmental impact analysis, stormwater best management practice (BMP) selection, design, and maintenance; and Total Maximum Daily Lo ...
  • David Bonnett, P.E., P.Eng.

    David Bonnett is a Principal Engineer based in Massachusetts with 30 years of experience focused on water and natural resources engineering and waste containment facility planning and design, including environmental design, permitting, and construction oversight. He has significant experience with construction quality assurance (CQA) and construction management (CM) for the installation of geosynthetics and soil liners for waste management facilities and for remedial construction acti ...
  • Mark Hanna, Ph.D., P.E., LEED AP

    Mark Hanna is a Senior Principal Water Resources Engineer based in California with over 20 years of experience focused on water resources management. His experience in water rights, integrated water resources, and environmental restoration planning and implementation allows him to offer clients comprehensive solutions to the growing problems of water supply and demand in the natural and man-made environment. Mark specializes in large system hydraulics, hydrology, surface water and gro ...
  • Poppy Staub

    Margaret "Poppy" Staub is a Senior Principal Geologist and Environmental Engineer based in Colorado with more than 20 years of experience focused on environmental compliance, Superfund site management, pollution prevention practices, and management systems development for mountain resorts and clients in the mining, oil and gas, extractive metallurgy, biomedical, and manufacturing industries. Along with supporting an array of corporate clients on high-level strategy with respect to env ...
  • Keith Tolson, Ph.D.

    Keith Tolson is a Senior Principal Environmental Scientist with more than 15 years of experience focused on environmental sciences. He Specializes in the application of risk-based principles to support legal and regulatory requirements. Keith provides expert technical and strategic consultation on matters related to regulatory compliance and litigation. He also develops and supports public risk communication concerning the health effects of chemicals in air, water, soil, sediments, consumer p ...
  • Eric Strecker, P.E., BCEE

    Eric Strecker is a Senior Principal Water Resources Engineer based in Oregon with more than 30 years of experience focused on the design, monitoring, and evaluation of stormwater best management practices (BMPs) and the development of major project and watershed master plans. Eric has provided technical direction and assistance to public and private sector clients in stormwater master planning, National Pollutant Discharge Elimination System (NPDES) permitting, total maximum daily loa ...
  • Kim Williams, P.E., CPSWQ

    Kim Williams is a Senior Consultant Water Resources Engineer based in California with more than 20 years of experience focused on civil and environmental engineering. Specializing in stormwater quality compliance at a programmatic and site-specific level for both private and public sector projects in the construction, industrial, and municipal sectors, Kim has advised clients across the United States in water quality and compliance activities, often for high-risk or litigation-driven ...
  • Adrienne Nemura, P.E., BCEE

    Adrienne Nemura is a Senior Principal Water Resources Engineer based in Michigan with more than 30 years of experience focused on helping clients identify cost-effective and sustainable solutions to meet their water quality goals. She has worked for more than 40 cities and wastewater utilities and also state and federal regulatory agencies, industrial facilities, airports, attorneys, consulting firms, non-profit organizations, and trade associations. As a consultant, Adrienne uses ada ...
  • Michael Lodato, P.G.

    Michael Lodato is a Principal Geologist based in Florida with more than 25 years of experience focused on the field of hydrogeology, site assessment, and remediation using innovative technologies. Specializing in the evaluation of industrial wastewater and contamination assessment and the remedial design of sites impacted with chlorinated solvents, metals, pesticides, and petroleum products, Mike has spent his career developing cost effective environmental solutions for public and pri ...
  • Mark Ellard, P.E., CFM, D.WRE

    Mark Ellard is a Senior Principal Water Resources and Environmental Engineer based in Florida with more than 20 years of experience in diverse watershed management, water quality assessment, and stormwater design projects. Mark's water resources background includes watershed management and master planning; floodplain management; pollutant load assessment; National Pollutant Discharge Elimination System compliance; low impact development (LID); environmental resource permitting; and ...
  • Ganesh Krishnan, P.E., D.WRE

    Ganesh Krishnan is a Senior Principal Engineer based in Georgia with more than 20 years of experience focused on water resources and geoenvironmental engineering. Ganesh specializes in design engineering, regulatory compliance, and programmatic support for public and private sector clients throughout the United States. Ganesh brings consulting expertise in the design of surface water management systems; BMP evaluations; steep terrain hydrology and hydraulics; hydrology and hydraulics ...
  • Kathleen Harrison, P.G. QSP, QSD, QISP, ToR

    Kathleen Harrison is a Principal Geologist based in California with more than 20 years of experience focused on watershed management, stormwater pollution prevention, and erosion control. She is a significant contributor to water resource projects across the United States. From power companies to petroleum producers to commercial developers, her clients depend upon her in-depth understanding of industrial, construction, and municipal National Pollutant Discharge Elimination System (NP ...
  • Brandon Steets, P.E.

    Brandon Steets is a Senior Principal Water Resources Engineer based in California with more than 16 years of experience focused on helping clients develop cost-effective solutions to their complex regulatory compliance issues related to state and federal water quality requirements for surface water. He specializes in NPDES and TMDL regulations, pollutant source investigation and special study design, monitoring, modelling, and Green Infrastructure planning and design. Brandon has led ...
  • Robert Hartzel, CLM, CPESC

    Robert Hartzel is a Principal Water Resources Scientist based in Massachusetts with more than 20 years of experience focused on leading water resources restoration, watershed planning, and environmental permitting projects. Water Resources Assessment and Management: Bob is a Certified Lake Manager (CLM), a Certified Professional in Erosion and Sediment Control (CPESC), and professional wetland scientist.  His surface water management expertise includes trophic st ...
  • Steve Layman, Ph.D.

    Steven Layman is a Principal Environmental Scientist based in Georgia with more than 25 years of experience focused on the characterization, assessment, and mitigation of impacts to water resources. Steve is a technology leader in applying aquatic ecology, fish biology, and ecosystem management principles to water resource projects in eastern North America. His experience includes leading ecological assessments and managing project delivery for Clean Water Act permitting, National Env ...
  • Ken Susilo, P.E., CPSWQ

    Ken Susilo is a Senior Principal Water Resources Engineer based in California with more than 20 years of experience focused on urban stormwater management. Ken specializes in the development of multi-benefit, environmentally-sensitive solutions to stormwater management and water conservation design and planning efforts by applying leading-edge technologies to enhance the natural and built environment. Specializing in the application of innovative engineering design, hydraulics, and hy ...
  • Turgay Dabak, Ph.D., P.E.

    Turgay Dabak is a Principal Water Resources Engineer based in Washington, D.C. with more than 30 years of professional experience specializing in civil and environmental engineering, stormwater management, flood hazard identification and mitigation, dam safety, environmental assessments, expert testimony, and program management. Turgay has led and managed projects with annual budgets up to $25 million, overseeing complex matrix organizations, environments, and teams. His other skills ...
  • Leah MacKinnon, M.A.Sc., P.Eng.

    Leah MacKinnon is a Principal Engineer with more than 15 years of professional experience in the United States, Canada, and Europe focusing on remediation of groundwater containing recalcitrant compounds using innovative in situ technologies. Leah has directed, managed, and provided specialist technical support in applied chemistry in the subsurface environment for a number of projects including overall strategy development; site investigation; laboratory treatability studies; and rem ...
  • Tom Fendley, P.E.

    Tom Fendley is a Principal Environmental Engineer based in Georgia with more than 30 years of experience focused on civil/infrastructure design, construction engineering and contract administration, water resources engineering, and stormwater management. Tom has worked extensively with a wide variety of public and private sector clients, including the City of Atlanta, the City of Gainesville, Forsyth County, Gwinnett County, Cobb County, Athens-Clarke County, the Clayton County Water ...
  • Jennifer Wilkie, Ph.D., P.E.

    Jennifer Wilkie is a Principal Engineer based in Illinois with more than 20 years of experience in environmental research and consulting focused on providing multidisciplinary services and support to clients. Jennifer's practice spans a wide range of disciplines including site characterization and the remediation of sediment, soil, groundwater, surface water, and air; sediment management; environmental chemistry and forensics; and litigation support. Jennifer has supported industrial, ...
  • Philip Reidy, P.E.

    Phil Reidy is a Principal Water and Natural Resources Engineer based in Kuala Lumpur with over 25 years of experience focused on geotechnical and stormwater management. He has specialized experience and is an industry leader in the design, construction, and technology development of innovative rainwater harvesting and stormwater management systems. As a consultant, Phil directs the development of integrated harvesting and stormwater management system strategies and all aspects of syst ...
  • Lance Fontenot, Ph.D., PWS

    Lance Fontenot is a Principal Toxicologist based in Louisiana with more than 20 years of experience focused on assessing the human health and ecological effects of hazardous substance releases, and ecological impact assessment. Lance's research and applied consulting experience includes work on the ecotoxicology of amphibians and reptiles, and the use of various organisms as bioindicators of environmental contamination. His work has involved basic research studies of the parasites, fo ...
  • Scott Sheridan, P.E.

    Scott Sheridan is a Senior Principal Civil and Geotechnical Engineer based in Virginia with more than 15 years of experience focused on providing professional engineering, construction management, and consulting services to solid waste, power utility, and industrial clients. As a consultant, Scott has established broad experience in solid waste design, permitting, construction, operation, and financial management for clients such as EnviroSolutions, Waste Management, Republic Services ...
  • Chris Robinson, Ph.D., CEng, MIMechE

    Chris Robinson is a Principal Engineer based in England, with more than 23 years of professional experience focused on fluids systems engineering, computational fluid dynamics (CFD), gas dispersion, and aerodynamics. This experience has been developed through work in Government, academia, and 15 years of consultancy experience across a wide range of industries. Chris' practice uses CFD to optimize waste water and drinking water processes. He has performed design and design assurance ...
  • Christopher Robb, P.E.

    Chris Robb is a Principal Engineer based in Wisconsin with more than 20 years of experience in environmental consulting, remediation design and construction, quality control, and project management of solid and hazardous waste remediation projects throughout the United States. Chris' expertise focuses on delivering innovative, implementable, constructible, and cost-effective remediation designs from inception to construction, completion, and closeout. Chris combines his passion for ap ...
  • Thomas Bristol

    Thomas Bristol is a Principal Engineer based in South Carolina with more than 17 years of experience in environmental consulting focused in the areas of environmental regulatory compliance; ecology and natural resources, and environmental assessment. Thomas is a senior leader in Geosyntec's Natural Gas practice group. Thomas' academic background is in biology, ecology, and environmental assessment. He applies his knowledge and technical experience to assist clients by managing and d ...
  • Caroline Field, C.Eng., P.E.

    Caroline Field is a Principal Civil Engineer with more than 20 years of professional experience in the de­sign and analysis of a wide range of structures for the built environment. She specializes in the field of structural resilience to extreme events, specifically earthquakes, explosions and progressive collapses. Caroline has pioneered the development of resilience consulting, helping clients develop risk-based, comprehensive approaches to resilience. Her approaches balance phy ...
  • Matthew Wissler, P.G.

    Matt Wissler is a Principal Hydrogeologist with more than 14 years of experience focused on the evaluation of water resources, hydrogeologic investigations relating to resource and waste permitting, and contaminated site assessment and remediation. Throughout his career, Matt’s project management and technical expertise have helped public, private and federal sector clients in a host of industries including power and utilities, waste management, chemical manufacturing, oil and ga ...
  • Jason Kerstiens, P.E.

    Jason Kerstiens is a Principal Civil and Environmental Engineer with over 17 years of experience providing process engineering, regulatory compliance, water resource optimization, and strategic planning services to industrial, municipal, state, and federal organizations. Jason specializes in working with clients to evaluate and solve challenging water management, treatment, and reuse issues. His experience includes the evaluation and implementation of innovative treatment technolog ...
  • Trevor Carlson

    Trevor Carlson is a Principal Environmental Engineer based in Saskatchewan with more than 20 years of experience focused on environmental remediation projects including the characterization and remediation of hydrocarbons, chlorinated solvents, inorganics and radionuclides. With extensive experience helping industrial clients manage their environmental issues, Trevor has managed a number of projects using in situ remediation technologies such as biological, chemical oxidation and mech ...
  • Matthew Wissler, P.G.

    Matt Wissler is a Principal Hydrogeologist with more than 14 years of experience focused on the evaluation of water resources, hydrogeologic investigations relating to resource and waste permitting, and contaminated site assessment and remediation. Throughout his career, Matt’s project management and technical expertise have helped public, private and federal sector clients in a host of industries including power and utilities, waste management, chemical manufacturing, oil and gas, food an ...
Geosyntec Consultants
Geosyntec is a specialized consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

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