Duraroot is an environmental consulting firm based in Keenesburg, Colorado, that specializes in providing natural resource management and reclamation services with emphasis placed on the soil and agronomic sciences. Established in 2012, Duraroot provides rapid, data-driven solutions to reclamation issues for both private and public entities including industry, business, environmental management agencies, and private organizations.

Our team holds advanced university degrees and certifications in various fields of natural resource management, and has extensive experience across countless sectors of the natural resource and energy production industries throughout the United States. We incorporate soil/agronomic-based scientific practices, customized tools, and technology to provide services and products that are efficient and effective. Duraroot is an emerging firm and is part of the locally owned and operated H2 Enterprises – dedicated to providing reclamation services of the highest quality.


Our Team

Principal Scientists  | Senior Scientists  | Project Scientists


Principal Scientists


 Aaron DeJoia

Title: Principal Scientist
Education: Kansas State University – M.S. Agronomy  (Soil Fertility), B.S.  Agriculture,  Secondary Degree Natural Resource and Environmental Science
Experience: 16 Years – Soil Science Consultant
Fields of Competence:
• Soil and Water Chemistry
• Weed Management
• Water, Soil and Plant Interactions
• Saline/Sodic Water/Soil Relations
• Agronomy
• NPDES Permitting
• Irrigation Management
• Soil Characterizations

About Aaron: Aaron DeJoia is a board Certified Professional Soil Scientist (#33232), Certified Professional Agronomist (#33232), and Certified Crop Advisor (#33232) with 16 years of experience as a soil science consultant for both international and domestic clients. He currently works as an environmental soil scientist/agronomist providing permitting, operational, reclamation and salinity remediation assistance to varying clients in both the private and public sectors. Aaron has served on the National Soils Certification Board and is currently serving on the Council of Soil Science Examiners and Soil Science Society of America Board of Directors. He was also the March, Soils Support Agriculture International Year of Soil Chairman for the Soil Science Society of America.

Aaron’s technical strengths are in soil science, weed management, water resources, and agronomy. His specific technical experience includes reclamation, crop and weed management plans, facility water management strategies to manage nutrient and salinity impacts, land application of biosolids, wastewater land application, NPDES permitting and soil chemistry. He has particular expertise in the reclamation of pipeline ROWs and oil and gas facilities throughout the United States. Aaron has assisted in the reclamation of over 15,000 acres of drastically disturbed lands from New Jersey to Wyoming.

As a technical writer, Aaron has been involved in the preparation of several articles, permitting documents, proposals, and refereed journal articles. He has prepared numerous technical project reports for public review. He has prepared and presented numerous technical presentations at events including: North Central Extension – Industry Soil Fertility Conference, American Society of Agronomy Annual Meetings, Strategic Research Institute 2002 CBM Water Management Conference, Ground Water Protection Council 2002 Produced Water Conference, 2006 Rocky Mountain Unconventional Gas Conference, 2009 Rawlins BLM Reclamation Conference, 2013 Southern Gas Association Conference, 2014 American Society of Mine Reclamation. In addition Aaron, has reviewed soil salinity manuscripts for the Journal of Environmental Quality.

Andrew Harley, PhD.

Title: Principal Scientist, Project Manager, and Business Development Lead
Education: University of New South Wales – BSc (Hons) Physical Geography/Geology (Soils, Geomorphology, Hydrology and Groundwater Concentration),
University of Western Australia – PhD Soil Science and Plant Nutrition (Geochemistry and Soil Mineralogy Concentration)
Experience: 28 Years – Environmental Consulting and Academic Research
Fields of Competence:
• Geochemistry of Soil, Surface Water and Groundwater
• Weathering Reactions
• Waste Rock Geochemistry and Characterization
• Environmental Sampling and Analysis (water, soil)
• Analytical Techniques
• Reclamation Planning and Monitoring
• Permitting and Compliance (NEPA, RCRA, CERCLA, US state regulations, international regulations)

About Andrew: Dr. Harley is a Principal Scientist, Project Manager, and Business Development Lead based in Duraroot, Inc.’s Keenesburg, Colorado office. He has 28 years experience leading, managing and directing multi-disciplinary teams in delivering environmental solutions to resource and industrial clientele.  Dr. Harley’s experience includes acquiring, understanding and dissemination of the technical aspects of a project to clients, regulators and stakeholders to ensure appropriate regulatory compliance.

Dr. Harley spent the first part of his career working on environmental projects involving predominately organic contaminants of concern (refined and unrefined petroleum hydrocarbons, waste oil, solvents and chlorinated solvents at upstream, midstream and downstream sites).  With the recent mining boom, Dr. Harley has been involved in resource related projects throughout the world. Recent mining work includes: Geochemical evaluation and waste rock characterizations for base metal, uranium and iron projects in Western US, Canada, Mexico, Australia and Indonesia, supporting permit and license applications for proposed mining, ore processing and smelting operations in Colorado (gold, uranium, coal), Arizona (gold, potash), New Mexico (gold, uranium), Nevada (base metal), Idaho (phosphate) and Mexico (gold, silver, zinc), support mining companies with water quality issues, including overburden characterization and land application of treated water, and site audits and technical review of potential environmental liabilities.

With a strong field background, Dr. Harley has combined this with academic research into evaluating new amendments and fertilizers to enhance reclamation in drastically disturbed soils associated with resource extraction.  These efforts have worked with using waste material as a resource to help minimize costs associated with closure and reclamation.  This work has also led to the development of restoration techniques that increase ecosystems services and manage carbon offsets.


 Senior Scientists


Jason Driscoll 

Title: Director, Senior Scientist
Education: Baylor University – B.S. Biology (Ecology Concentration)
Experience: 11 Years – Environmental Consulting
Fields of Competence:
• Project Management
• Reclamation Planning and Monitoring
• Permitting and Compliance (NPDES, SWPP, SPCC, WMP)
• Environmental Regulatory Reporting
• Environmental Sampling and Analysis (water, vegetation, and soil)
• Regulatory Agency
• GIS Spatial Analysis
• Program Development

About Jason: Jason is a Director based in Duraroot, Inc.’s Keenesburg, Colorado office. As a Senior Scientist, he has 11 years of environmental consulting experience and has managed a variety of environmental permitting, compliance, monitoring, and reclamation projects. His responsibilities have included reclamation of oil and gas development (upstream and midstream), National Pollutant Discharge Elimination System (NPDES) permitting management, NPDES compliance reporting, monitoring of Storm Water Pollution and Prevention (SWPP) and Spill Prevention Control and Countermeasures (SPCC) plans as well as reclamation plan monitoring for the Bureau of Land Management (BLM). Jason has also been a part of project teams for due diligence studies, baseline water quality programs, and waste management plans. Along with client related projects, he has been heavily involved in policy and rule-making with regulatory agencies, on behalf of the oil and gas (O&G) industry, and has been an integral part in the Wyoming Pollutant Discharge Elimination System (WYPDES) program implementation since 2006.

Jason has been involved in reclamation in the mineral extraction industry from both upstream and midstream aspects. He focuses on long-term programmatic projects that entail comprehensive pre-construction planning, as well as data driven reclamation success monitoring. Projects range from drill pad reclamation to 50+ mile pipelines. Jason takes a holistic approach to reclamation projects and emphasizes pre-construction planning, data collection and analysis, and inventory as well as innovative application of processes during the reclamation phase.

Jason also has extensive experience with agency relations. He has represented clients in several policy/rule development endeavors as they relate to permitting and compliance. Working together with operators/clients to communicate with agencies throughout the lifetime of projects to achieve required and desired results is one of Jason’s strengths.

Jason, along with his wife Liseanne and three children Hunter, Sawyer, and Ryder, resides in Lochbuie, CO. Along with his passion for the environment, he and his family enjoy camping in the Rocky Mountain region and attending blue grass festivals. Before beginning his environmental career, Jason was a volunteer for the U.S. Peace Corps in Kenya. Following that experience, Jason spent 3 years working for Outward Bound. In this program he facilitated outdoor education expeditions in the Everglades for at-risk and adjudicated youth.


Kelley House

Title: Senior Soil Scientist
Montana State University B.S. – Land Rehabilitation, Soil Science Minor
Experience: 10 Years – Natural Resource Management and Disturbed Land Reclamation
Fields of Competence:
• Baseline Soil and Vegetative Community Assessment and Classification
• Plant Identification
• Soil, Water, and Plant Interactions
• Reclamation Planning, Implementation, and Monitoring
• Saline, Sodic, and Acidic Soil Remediation
• Produced Water Management and Beneficial Use
• Soil Survey
• Soil, Water, and Vegetation Sampling
• Environmental Permitting and Compliance

About Kelley: Kelley  is a board Certified Professional Soil Scientist with ten years of professional experience in natural resource management and disturbed land reclamation throughout the United States. Kelley’s diverse technical strengths include baseline environmental assessment, soil resource assessment and classification, reclamation planning, implementation, and success monitoring, produced water management, land application, and beneficial use, saline, sodic, and acidic soil remediation, environmental permitting and compliance, technical document development, and project management.

Kelley’s past experience includes designing irrigation and livestock watering systems, and performing range inventories to establish range condition for the USDA-NRCS. She also served as a Reclamation Specialist for the phosphate ore industry where she was responsible for disturbed land reclamation planning and implementation, soil, water, and vegetation sampling and monitoring, BMP/bioengineering design and installation, and stormwater compliance inspections on a large open-pit mine. She has worked for both international and domestic clients, as well as both public and private sectors. Kelley has particular expertise providing reclamation consulting services to the energy industry, specifically for oil and gas facilities, and pipeline ROWs across the United States.

In her free time, Kelley enjoys spending time with her husband and young son, skiing the snowy Rocky Mountains, taking in live music, traveling, and relishing good food and wine.


James Hartsig

Title: Senior Soil Scientist
Education: University of Tennessee – M.S. Physical Geography, Watershed Management & Soil Hydrophysics,  B.S. Soil Science (Pedology and Geomorphology)
Experience: 5 Years – Environmental Scientist
Fields of Competence:
• Soil Hydrology
• Pedology
• Soil Microbiology
• Soil Classification
• Reclamation
• Stormwater Management
• Wastewater Management

About James: James Hartsig is a Certified Professional Soil Scientist (#325699) with five years of experience as an environmental scientist conducting oversight, field determinations and studies, and laboratory analyses with United States energy production clients. He currently serves as a Senior Soil Scientist providing reclamation and remediation assistance to clients in both the private and public sectors.

James has used his knowledge and experience with soils to solve critical environmental issues ranging from the RCRA-certified TVA Kingston Ash Recovery Project to the oil and gas fields in northeastern Colorado. His technical strengths in soil biology, hydrology, water resources, and a solid understanding of environmental regulations has helped complete both challenging and everyday environmental issues.

James’ current projects involve the reclamation of solar panel grids, oil and gas production facilities, intrastate pipeline ROWs, and urban landscapes. Each of these sectors starts and finishes with the proper handling of the location’s soil resources.

In his free time, James enjoys hiking in the Rockies, golfing all over Colorado, and visiting the many breweries in Fort Collins.


 Project Scientists


Tobias Kraft

Title: GIS Specialist/Project Scientist
Education: Colorado State University – B.S.  Natural Resource Management, Secondary Degree Spatial Information Systems
Monroe Community College – A.A. Business Management
Experience: 5 Years – GIS Analyst and Environmental Scientist
Fields of Competence:
• Desktop Soil Analysis
• Geographic Information Systems
• Modeling Water, Soil, and Plant Interactions
• Database Development Programming
• Remote Sensing
• Invasive and Weed Mapping
• Soil Sampling

About Tobias: Tobias is a professional GIS Analyst and Environmental Scientist with 5 years’ experience working in both private and public sectors. He currently works as a GIS Specialist/Project Scientist providing soil salvage plans, reports, data deliverables, statistical sampling designs, and resource management plans to various different clients.

Tobias’ technical strengths are in GIS development, ecosystem modeling, remote sensing, cartography, soil conservation, and vegetation mapping. His specific technical experience includes desktop soil analysis using the NRCS SSURGO soils dataset, post-fire erosion modeling/mitigation in montane ecosystems, vegetation mapping (invasive/noxious weeds), and various field sampling techniques.

In addition to Tobias’ environmental background, he has developed and managed an assortment of database products. Tobias excels at studying workflows and developing management tools for increased productive efficiency and data capture. His high aptitude for communication and information dissemination culminates with his technical expertise to provide quality, user-friendly, data products.


Christina Hebb

Title: Project Scientist
Education: University of Alberta – M.S. Soil Science (Soil Physics Major), B.S. – Environmental Conservation Sciences  (Land Reclamation Major)
Experience: 1 Year – Site Assessment and Remediation
Fields of Competence:
• Reclamation
• Soil Characterizations
• Field Sampling
• Environmental Site Assessments
• Data Management
• Soil Physics
• Research
• Soil Survey

About Christina: Christina is a soil scientist with 1 years’ experience working in environmental site assessment and remediation in Alberta. She currently works as a Project Scientist managing large data sets, preparing professional documents/reports associated with collected project data, preparing documents associated with environmental permitting and compliance and collection of field data associated with projects (primarily soil and vegetation samples).

Christina’s technical skills are in soil science and reclamation. Her previous work experience includes Phase II subsurface investigations and baseline soil surveys. She was responsible for the oversight of the drilling program, documentation of borehole logs and monitoring well installations, groundwater sampling and analysis, hydraulic conductivity testing, soil sampling and characterization, and writing monitoring programs, work plan proposals and environmental impact assessments.