Ryan K. Bixby, LG

Ryan K. Bixby, LG

President & CEO

Ryan has worked on hundreds of commercial, industrial, and residential properties to evaluate the potential environmental risks as part of the environmental due diligence process. Ryan’s collaborative approach toward the completion of remedial investigations, feasibility studies, and cleanup actions ensures that the most cost-effective remedial technologies are implemented and that the client’s objectives are achieved. Ryan has also provided significant litigation support to assign and direct cost-recovery and cost-allocation efforts.

Christopher Taylor, CPA, CGMA

Christopher Taylor, CPA, CGMA

CAO & CFO

Chris has extensive experience in financial management, accounting, business analysis, systems implementation, risk management, and process improvement. His career has centered on environmental and professional service firms where he has collaborated with cross-functional teams to gain consensus in setting goals to achieve top results. He has filled key roles in the expansion of several firms into new markets both nationally and internationally.

Paula Houston

Paula Houston

Human Resources Director

Paula is a human resources specialist with expertise in the development, implementation, compliance, and management of human resources programs. She specializes in recruiting, employee relations and morale, compensation and benefits, performance management, ESOP administration, and orientation and training.

Ali Aranda

Ali Aranda

Business Development & Marketing Manager

Ali is a leader in marketing strategy, communication and collaboration in the A/E/C industry. Ali’s expertise includes strategic planning, company branding, event planning, client relationship management, building teaming partnerships, setting marketing performance metrics, creating and facilitating marketing trainings, and overseeing and coaching pursuit efforts, proposals, and presentations.

Charles Robinson, PE

Charles Robinson, PE

Principal Engineer

Charlie is a licensed California professional civil engineer and engineering contractor who solves environmental challenges and works cooperatively with agencies to build positive relationships while meeting the business objectives of his clients. Charlie has directed hundreds of different investigations and remediation efforts, devising technical and business solutions to minimize and resolve liabilities. He has also assisted a wide variety of industries to find innovative solutions to operational issues that cause environmental and health concerns.

Chris Carter

Chris Carter

Principal Scientist & Vice President

Chris has diverse experience as an environmental consultant in compliance-driven projects. He has worked extensively with Northwest real estate developers and property owners to tailor environmental management strategies to meet project objectives. Chris has experience building both small- and large-scale compliance programs to meet business and regulatory objectives. From stormwater management to complicated cleanup sites, his practical and efficient approach is appreciated by clients and regulators alike.

James P. Bryson, PG

James P. Bryson, PG

Principal Geologist

James is a licensed California professional geologist with expertise directing characterization and remediation efforts at a variety of commercial, industrial, and Federal sites throughout the United States. James has extensive experience building and directing multi-disciplinary teams of experts to support his clients with their existing environmental liabilities, evaluating potential future liabilities, and providing litigation support services. James enjoys partnering with clients to create positive business outcomes and solutions for risk mitigation to facilitate real estate transactions and gain regulatory closure.

John R. Funderburk, MSPH

John R. Funderburk, MSPH

Principal Scientist & Vice President

John specializes in the redevelopment of contaminated property. He works with landowners, attorneys, and development clients throughout the environmental due diligence and investigation process, and takes his projects forward into remedial design, construction, and cleanup implementation. John is also an expert witness in cases involving forensic analysis to identify dates and sources of contaminant release and has facilitated more than $25 million in cost recovery for clients in the last three years.

Martin Hamann, PG, CHG

Martin Hamann, PG, CHG

Regional Operations Manager, California & Principal Hydrogeologist

Martin has managed hundreds of environmental and hydrogeological projects encompassing a wide range of water supply and technical analyses associated with dewatering and environmental investigations, as well as site remediation issues. Martin has successfully managed all aspects of client and stakeholder communications, scoping and budgeting, cost controls, and project quality for complex, long-term, domestic and international environmental projects. Martin has worked closely with clients and other project team members in evaluating various potential remediation and mitigation scenarios and associated future costs.

Melissa C. Schuetz, PG

Melissa C. Schuetz, PG

Principal Geologist

Melissa is a registered professional geologist with a strong technical background and project management skills that enable her to provide clients streamlined and economic solutions to a variety of environmental problems. Melissa's projects have included operating industrial facilities, such as steel manufacturing and chemical production facilities, as well as the fast-paced characterization for the redevelopment of former industrial properties to residential and retail use. Her expertise provides clients with cost-effective solutions to bring a project to a successful closure.

Pam Xander

Pam Xander

Principal Scientist

Pam’s expertise is in environmental review and permitting for proposed land development, industrial, and public works projects. Pam’s experience includes planning, conducting, and preparing environmental studies for public agencies and private developers on over 150 SEPA/NEPA projects. Pam’s experience also includes strategy and assessment of upland and in-water permitting requirements related to local, state, and federal issues.

Terry Montoya, PE

Terry Montoya, PE

Principal Engineer & Vice President

Terry is a licensed professional environmental engineer in the State of Washington. He is an innovative and creative engineer who brings extensive experience to solving challenging remediation issues. Terry has designed and overseen a number of cutting edge remedial systems that have addressed solvents in groundwater as well as reduced remedial time frames and budgets.

Chuck Cacek, LG, LEG

Chuck Cacek, LG, LEG

Senior Geologist

Chuck is an engineering and environmental geologist with experience working all over the Pacific Northwest. Chuck has vast knowledge of Pacific Northwest soils, geology, and hydrogeological conditions. He has managed and directed dozens of subsurface assessments, cleanups, and closures of numerous commercial and industrial properties for private developers and municipalities. Chuck also has a complete understanding of site development and construction, and has managed numerous site cleanups in unison with redevelopment projects.

Rob Roberts

Rob Roberts

Senior Scientist

Rob is an environmental project manager with experience coordinating and managing environmental projects throughout the Pacific Northwest. He has conducted hundreds of Phase I Environmental Site Assessments, soil and groundwater explorations, underground storage tank closures, contaminated site cleanups, and compliance audits at a variety of commercial and industrial properties. His clients have included local municipalities, attorneys, developers, and industrial entities.

Suzy Stumpf, PE

Suzy Stumpf, PE

Senior Engineer

Suzy is a licensed professional engineer in Washington State. Suzy is an experienced project manager with experience in remedial investigation/feasibility study analysis, site characterization, vapor intrusion analysis, remedial system design and implementation, operation and maintenance of remedial systems, budget management, and general contractor for large soil excavation projects.

Tim Brown, LHG

Tim Brown, LHG

Senior Hydrogeologist

Tim is a licensed geologist and hydrogeologist in Washington State. Tim specializes in investigation and remediation of chlorinated and recalcitrant compounds and petroleum hydrocarbon contamination. Tim’s additional areas of expertise include due diligence and baseline assessments for property transactions, underground storage tank site assessments, conceptual site models, regulatory cleanup, MTCA model remedies, and vapor intrusion assessments.

Tom Cammarata, LG, LHG

Tom Cammarata, LG, LHG

Senior Geochemist

Tom is a licensed geologist and hydrogeologist in Washington State with an advanced degree in field in Geochemistry. Tom has extensive experience in environmental consulting includes evaluating freshwater and marine sediment quality under the SMS, performing aquifer testing, conducting natural attenuation studies, performing statistical analyses, modeling the fate and transport chemicals in soil, air and water, conducting forensic studies, and providing expert witness services. Tom also has considerable experience in regulatory closure of facilities under MTCA. Tom is bilingual with Arabic as his second language.

Chris Cass, LG

Chris Cass, LG

Associate Geologist

Chris is a licensed geologist with an abundance of experience in subsurface contaminant investigations, environmental due diligence, and environmental cleanups and monitoring. He has provided client services in the areas of field support for environmental cleanup activities, groundwater and surface water studies and monitoring, and Phase I and Phase II Environmental Site Assessments. Chris also has experience coordinating with regulatory agencies to attain closure for cleanup sites.

Corey League

Corey League

Associate Environmental Scientist

Corey is an environmental scientist with expertise managing regulated building materials. Corey provides technical support and management for a diverse array of environmental projects which include hazardous material surveys, indoor air quality investigations, mold and moisture building inspections, underground storage tank site assessments, soil and groundwater investigations, and remediation projects.

Dan Lipinski, CPSWQ

Dan Lipinski, CPSWQ

Associate Stormwater Scientist

Dan is a stormwater scientist focused on NPDES compliance, stormwater treatment evaluations, and implementation of stormwater Best Management Practices. Dan’s experience includes source control inspections and evaluations; fluid system design, installation, and operation; and development and implementation of SWPPPs, erosion and sediment control plans, and spill control plans. Dan specializes in innovative solutions for treatment system automation, resulting in significantly decreased labor costs associated with operation and maintenance of water treatment and remediation systems.

Laura Wolfe, AICP

Laura Wolfe, AICP

Associate Environmental Planner

Laura specializes in National Environmental Policy Act (NEPA) documentation and compliance for proposed federal, state, and local transportation and land development projects. She also has experience providing environmental review assistance to private developers. Laura has experience conducting, preparing, and managing natural resource and environmental studies and uses her permitting expertise to help clients develop overall project strategies.

Ada Hamilton

Ada Hamilton

Project Scientist

Ada has experience in conducting environmental review analysis for environmental investigation and remediation projects. She has worked on a variety of Environmental Impact Statements, Environmental Assessments and other NEPA/SEPA documents for Tribes and municipalities. Ada has also completed a wide variety of tasks associated with due diligence, subsurface investigations, and remedial investigations. She excels in report writing, data management, and historical research, as well as project planning coordination.

Clare Tochilin, LG

Clare Tochilin, LG

Project Hydrogeologist

Clare is a licensed geologist with experience in geologic and hydrogeologic fieldwork, data management and analysis, and report writing involving hazardous waste site remediation as well as clean water supply. Her primary areas of experience include environmental subsurface investigations, remedial excavation and drilling oversight, aquifer testing and analysis, groundwater monitoring, and technical report writing.

Dan Kuhn

Dan Kuhn

Project Stormwater Scientist

Dan has experience working on construction projects for environmentally impaired properties. He is experienced with UST site decommissioning, equipment operation, large excavations, construction stormwater management and sampling, and general construction site support. Dan also has a strong background in UST site decommissioning, construction stormwater management and sampling, heavy equipment operation, and resource allocation and field coordination.

Ethan Marks, PE

Ethan Marks, PE

Project Engineer

Ethan is a licensed engineer with experience in operation and maintenance of remediation systems, system installation, injection technologies, and engineering design. Ethan’s background also includes vapor intrusion assessment, soil gas and indoor air sample collection, analysis of soil gas and indoor air laboratory results, and vapor barrier design.

Jess Smith, EIT

Jess Smith, EIT

Stormwater Engineer

Jess specializes in engineering in water, sanitation, and stormwater design. Her focus is on designing stormwater systems in the Pacific Northwest using low impact designs and best management practices, to improve the quality of runoff into the surrounding environment. Jess has worked on private and public agency projects, including housing developments, parks, sea walls, aquariums, skate parks, roadways, sidewalks, driveways, and mixed use housing.

Jonathan Loeffler, GT

Jonathan Loeffler, GT

Project Geologist

Jonathan has experience in a wide variety of technical and task management roles. His projects include environmental subsurface investigations, remedial system operation and maintenance, geotechnical drilling and sample collection, geophysical surveying, groundwater monitoring, remedial excavation oversight, and technical report writing. Project sites include residential heating oil, commercial, gas stations, dry cleaners, private industrial operations, and government owned properties including port, county and city sites.

Liz Forbes, LG

Liz Forbes, LG

Project Geologist

Liz is a licensed geologist and project manager with experience in Phase I and Phase II Environmental Site Assessments, underground storage tank closures, excavation and drilling oversight, remediation system operation and maintenance, sediment sampling, and technical report writing. Her expert project management skills in scheduling, health & safety, and attention to detail result in financial and time savings for clients.

Travis Zandi

Travis Zandi

Project Scientist

Travis specializes in writing environmental technical documents for projects in the Pacific Northwest. He has contributed to SEPA environmental review documents and also prepares Phase I site assessments and sampling activities and reports. Travis has impressive research and investigative skills in data collection and excels in historical research and compiling historical reports, making his technical writing skills and research abilities invaluable to environmental review documents.

Alison Sienkiewicz

Alison Sienkiewicz

Staff Stormwater Scientist

Alison specializes in stormwater permit compliance, water quality monitoring through stormwater and groundwater sampling, best management practice assessments, and stormwater report writing to support complex stormwater program management. Her background is in industrial and construction stormwater compliance, field investigation, and development and implementation of stormwater pollution prevention plans.

Grayson Fish

Grayson Fish

Staff Geologist

Grayson has experience in subsurface investigations, remedial injections, sediment, water, and vapor sampling, excavation and drilling oversight, and technical report writing. He has a strong background in groundwater monitoring and sampling, geologic interpretation and modeling, underground storage tank site assessments, and knowledge of the Unified Soil Classification System.

Joe Ellingson, EIT

Joe Ellingson, EIT

Staff Engineer

Joe is a staff engineer with experience in operation and maintenance of remediation systems, system installation, injection technologies, and engineering design. His experience also consists of field work, including sampling, optimization, fluid recovery events, and site remediation oversight. His work also includes vapor intrusion assessments, soil gas and indoor air sample collection, and soil gas and indoor air laboratory result analysis.

Kevin Bartelt

Kevin Bartelt

Staff Scientist

Kevin has experience on a wide variety of environmental compliance projects. He specializes in field work and data collection for Phase I site assessments, performing hazardous materials/asbestos surveys, conducting stormwater sampling and CESCL inspections, and providing environmental due diligence for clean-up and remediation projects for both public and private clients.

Logan Schumacher

Logan Schumacher

Staff Geologist

Logan’s experience includes Phase I site assessments, subsurface investigations, excavation and drilling oversight, and groundwater and soil vapor sampling. His expetise also includes technical report writing for site assessments, remedial investigations, sampling and analysis plans, hazardous materials surveys, groundwater reports, and health and safety plans.

Sarah Welter

Sarah Welter

Staff Geologist

Sarah has experience in soil, sediment, benthic macroinvertebrate, surface water, marine water, and groundwater sampling and testing. She also has expertise in oversight of well installation and redevelopment, and treatment system maintenance and troubleshooting.

Siera Pleskac

Siera Pleskac

Staff Scientist

Siera has professional experience including Phase I site assessments on residential, commercial, and industrial properties, groundwater monitoring and sampling, soil sampling, hazardous building materials inspections (asbestos, lead paint, and PCBs), field investigations, historical research, and technical report writing experience. She also has a strong background in City of Seattle permitting.

Silvia Hendrickson

Silvia Hendrickson

Silvia’s experience includes master use, building, grading, demolition, and associated building permit applications. She assists clients with right-of-way, haul routes, traffic control plans and other transportation related permit requirements. She also assists project managers with personnel coordination, editing and production, data management, and project correspondence.

Tyler Schuetz

Tyler Schuetz

Staff Geologist

Tyler’s environmental experience includes coordinating and conducting field activities, writing technical reports for soil and groundwater investigations, and preparing site-specific health and safety plans for field activities. Tyler’s field experience includes lithologic logging of soil borings, soil sampling, air monitoring, groundwater monitoring and sampling, and stormwater inspections.

Naseef Chowdhury

Naseef Chowdhury

CAD/GIS Manager

Naseef is experienced at using ArcGIS and AutoCAD to conceptualize complex subsurface conditions to build 2D and 3D technical drawings for a diverse range of contaminated sites. In addition, he has worked with Washington State and local government entities to acquire and manage permitting requirements for remediation projects. Naseef’s experience also includes analyzing and processing historical information, including maps and aerial imagery to obtain information used for illustrative purposes in ArcGIS.

Hilda Ballard

Hilda Ballard

Project Quality Manager

Hilda is highly organized and detail oriented. She consistently performs under aggressive deadlines and schedules in a professional and efficient manner while maintaining and ensuring company quality standards are met. Hilda has a good understanding of the technical disciplines and how she can support and enhance project management.