Our Team

Key People

At Avatar, we understand that our people are our most important asset. We have created an atmosphere that encourages innovation, fosters a variety of opinion, and demands ethical and honest behavior. Avatar has an aggressive bonus and profit sharing program, which gives everyone both a stake in our success and a responsibility to contribute to the overall well being of the company. Click on any of the names from the list below to read a brief professional profile of some of Avatar's Key People.

Arnetia Carroll

Assistant Scientist
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Tim Collins

Junior Geologist
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Alan W. Geyer

Associate Geologist
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Kristina Early

Project Manager/Senior Scientist
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Kelly A. Bender

Contracts Manager
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Florence Sevold

Deputy Technical Director
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Susan Herbert

Project Scientist
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Tod R. DeLong

Technical Director
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James Walsh

Principal
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Rachel Urban

Junior Engineer
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Deborah Jones, PMP

Project Manager
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Arnetia Carroll

Assistant Scientist

BS Environmental Science

Ms. Carroll is a recent hire with an educational background in environmental science and academic experience in groundwater sampling, soil sampling, and data analysis. Her responsibilities include assisting in evaluations related to human health and ecological risk assessments including ProUCL, lead, and mutagenics. Ms. Carroll also has experience in the preparation of various planning documents including QCSRs, CDQRs, and RI reports.

Tim Collins

Junior Geologist

BS, Geology

Mr. Collins has been with Avatar for 1 year and has an educational background in geology and related geosciences. Mr. Collins has participated in various field sampling activities since his start at Avatar including: Low-flow ground water sampling using submersible bladder and peristaltic pumps, soil and sediment sampling and sediment logging/ classification from bore hole cores. Additionally, he has been involved in multiple vapor intrusion investigations which includes indoor, ambient, and soil vapor sampling. He has completed his 40-hour OSHA HAZWOPER training, First aid CPR training courses, and FEMA ICS 100 and 200 training courses.

Alan W. Geyer

Associate Geologist

MS, Geoscience
BS, Geoscience

Mr. Geyer has over three years of experience in the environmental consulting field and health and safety oversight. His field experience includes low-flow groundwater sampling, soil and sediment sampling, surface water sampling, and vapor intrusion investigations that have included indoor air, ambient air, and sub-slab soil gas sampling. Additional experience includes overseeing subcontractors during monitoring well installation and logging borehole sediment. Mr. Geyer is also proficient in complex data management tasks, geological and hydrogeological interpretations, and spatial analysis using current Geographic Information System (GIS) software (ArcMap ® 10.6). Mr. Geyer has completed the OSHA 40-hour HAZWOPWER, 30-hour Construction, and 8-hour Supervisor trainings and is first aid/CPR certified. Alan has successfully received his Geologist in Training (GIT) certification.

Kristina Early

Project Manager/Senior Scientist

MPH, Master of Public Health
BS, Environmental Health

Ms. Early has over 19 years of experience in environmental consulting, primarily conducting and managing human health and ecological risk assessments through the Preliminary Assessment/Site Investigation and Remedial Investigation/Feasibility Study processes at a variety of USACE (Kansas City, Baltimore, and New England districts), USEPA, and NPS hazardous waste sites. Ms. Early has experience in developing work plans and other project planning documents including QAPPs, APPs, and SAPs, as well as performing RI/FS, HH and ERA, EE/CA, PA/SI, QCSR, and Groundwater Monitoring Reports. Ms. Early also has experience in successfully managing data from large field sampling efforts, organizing analytical laboratory data deliverables, data evaluation, Access® database construction, query and form building, and statistical analyses. Ms. Early has successfully managed several federal projects with complex scopes requiring daily coordination with project teams and subcontractors, tight schedule adherence, and budget management.

Kelly A. Bender

Contracts Manager

Master of Business Administration
BS, Management

Ms. Bender has twenty-one years professional experience in Federal Contract and Pricing Management in the Environmental Consulting industry. She manages the company contract and subcontract programs and is the contract and financial manager of Avatar’s USACE New England District, GE-Pittsfield Housatonic River contract. Kelly ensures compliance with the FAR, plus provides day to day financial analysis and administration of sales, revenue, and metrics. She extracts and extrapolates financial details that facilitate business development decisions and problem-solving effectiveness. She is a proficient in financial systems such as BillQuick and QuickBooks and Excel.

Florence Sevold

Deputy Technical Director

BS, Toxicology

Ms. Sevold has over 25 years’ experience in environmental consulting, performing human health and ecological risk assessments for CERCLA, RCRA (including hazardous waste incinerator sites), MMRP, FUDS, BRAC, Brownfields redevelopment projects, and State voluntary cleanup sites. In addition to risk assessments, her work in these programs has included deriving reference doses, critical toxicity values for mammalian and avian receptors, and human health criteria for short-term occupational exposures to inhalation toxicants; toxicologic database development; calculating risk-based PRGs for COCs including asbestos and explosives; writing and technical review of Public Involvement Plans, Uniform Federal Program Quality Assurance Project Plans (UFP-QAPPs), human health and ecological work plans and risk assessments, Responsiveness Summaries, Findings of Fact for Administrative Consent Orders, and 5-year reviews. Ms. Sevold is involved in all aspects of data handling, from sample management; field team, laboratory, and validator coordination; and FUDSChem event planning and field data population to database construction/maintenance; evaluation; reduction; and statistical analysis. She is skilled in use of EPA’s ProUCL software for statistical evaluation of environmental investigation data, including power analysis, calculation of exposure point concentrations, background threshold value determination, hypothesis testing, and trend analysis. She has in-depth knowledge of numerous fate and transport, bioaccumulation, and toxicological databases. This breadth of experience allows Ms. Sevold to provide technical direction for and review of a variety of projects.

Susan Herbert

Project Scientist

MS, Ecology
BS, Environmental Health

Ms. Herbert is an ecologist with 15 years’ experience in various aspects of the environmental industry. She has extensive experience in data management and analysis, CERCLA and RCRA human health and ecological risk assessments, and implementation of state quality assurance on risk assessments. She writes and reviews project planning documents such as UFP-QAPPs and APPs for USACE and National Park Service (NPS) sites. Ms. Herbert manages environmental sampling efforts and coordinates with team members, subcontractors, analytical laboratories and data validators through data collection, data delivery, and the reporting process for remedial investigations (RI), site investigations (SI), vapor intrusion, and remedial designs (RD). She is experienced in USDA’s environmental assessment process (NEPA) for genetically modified crops. Her field experience includes soil, groundwater, indoor air/subslab vapor, and stream sampling. Previous experience includes analysis of complex environmental data in spatial databases using GIS software; USEPA rapid bioassessment protocol (RBP) stream assessments and analysis of stream ecosystem function; and OSHA compliance.

Timothy Woods

Project Manager

MPH, Master of Public Health
BS, Environmental Health

Mr. Woods has over 21 years of experience in environmental consulting. His primary area of technical expertise is human health risk assessment where he has been the lead at a number of high profile sites. He has significant experience managing and performing environmental assessments, remedial investigations, and related activities at a variety of hazardous waste sites including CERCLA and RCRA sites, FUDS, BRAC sites, munitions-contaminated sites, asbestos sites, and other sites. He also has experience performing and managing assessments for a number of state agencies. He has managed large field investigation efforts and data management tasks. Mr. Woods has managed a number of large projects that has entailed organizing and coordinating subcontractors and team members along with managing project budgets and schedules. Other areas of technical competence include probabilistic risk assessment, vapor intrusion, asbestos exposure, and the development of computer programs, including statistical packages and various risk assessment calculation tools.

Tod R. DeLong

Technical Director

BS, Biology
MS, Wildlife Ecology

Mr. DeLong has over 30 years of experience in a wide array of environmental areas including ecological risk assessments, environmental assessments, contaminant impact assessments, 5-year reviews, forestry, long-term biological monitoring, wildlife evaluations, biostatistical analysis, and experimental design. He has been the technical and project manager for numerous remedial investigations and risk assessments for hazardous waste sites under both CERCLA and RCRA. He has technical expertise on the ecological aspects of the risk assessment process and has managed numerous field investigations, toxicity assessments, and bioaccumulation studies in support of the ecological risk assessment process. Mr. DeLong has a strong statistical background and is experienced in performing probabilistic risk assessments for both ecological and human health risk assessments. He is also experienced in the environmental assessment (EA) process and with multiple regulatory frameworks and with regulators in most EPA regions and many states.

James Walsh

Principal

MS, Environmental Science
BA, Political Science

Mr. Walsh has been involved in the environmental industry for more than 30 years. He has broad experience in environmental compliance issues, and has directed and/or managed numerous environmental assessments for hazardous waste sites for Federal clients under both CERCLA and RCRA, including BRAC sites, munitions-contaminated sites, and FUD sites. These projects have typically included site investigations, regulatory compliance, human health and ecological risk assessment, as well as risk communication strategies and associated public information and participation efforts. Additionally, he has used risk assessment methodologies for research institutions that have resulted in significant savings to industry, while maintaining strict environmental compliance. Mr. Walsh is experienced with NEPA regulations, occupational safety and health, and air quality compliance issues, having recently completed a Clean Air Act compliance program for a major military facility. Mr. Walsh also leads or supports many of the marketing opportunities pursued by Avatar.

Rachel Urban

Junior Engineer

MS, Civil Engineering
BS, Civil Engineering

Ms. Urban is a recent hire with a background in hydrology/hydrogeology and academic experience in groundwater modeling, data analysis, and electrical resistivity lab and field methods. Ms. Urban has a strong quantitative background withcoursework in geostatistics, data inversion, mathematical modeling, linear algebra, and numerical methods. She has successfully utilized MATLAB, C/C++, Python-based visualization software, and Linux computing clusters to run and visualize groundwater flow and transport models (MODFLOW/MT3DMS) and electrical resistivity data. Ms. Urban is an Engineer-in-Training (EIT) and is OSHA 40 hr HAZWOPER and First Aid/CPR certified.

Deborah Jones, PMP

Project Manager

MS, Environmental Pollution Control
BS, Environmental Resource Management

Ms. Jones has over 30 years of experience in environmental consulting, primarily in the areas of environmental assessments, environmental compliance and remedial investigation. Her skills include developing work plans and other project planning documents; evaluating and interpreting soil and groundwater geochemical data to assess extent of contamination; analyses of remedial alternatives; project management; and organizing and coordinating subcontractors and team members for large complex projects, meeting budget and schedule. She has completed many complex projects for federal clients such as EPA, U.S. Army Corps of Engineers, and Federal Communications Commission.