About Us

The Company

Surface and Stormwater ManagementAdvanced Environmental Sciences, Inc. provides a wide range of advanced consulting services to private industry and to governmental agencies. Our primary focus is on the planning, evaluation, remediation, and reclamation of mining sites. The employees of the Company offer a variety of skills in engineering, water treatment, land reclamation, and geochemistry. Specific applications of their technical skills include environmental assessment and characterization, site monitoring and remediation, water treatment, surface and stormwater management, regulatory compliance, mine closure, water-treatment plant design, bench-scale and pilot-scale testing of treatment systems, construction management, and regulatory and public interfacing.

Our Core Principles

Advanced Environmental Sciences offers specialized environmental and engineering services to meet the needs of a growing number of satisfied clients. The core principles of our work are excellence, diligence, and client satisfaction. We hold ourselves to the highest ethical standards, in both our professional and personal lives. Our primary goal is to work with our clients in a manner that fully meets their needs and exceeds their expectations.


Tim R. Runnells is the founder of Advanced Environmental Sciences and serves as its president. He specializes in water treatment technology, especially with respect to removal of trace elements to meet regulatory standards. He oversaw the design and testing of the first major water treatment plant in the U.S. for removal of arsenic from a municipal water supply. Mr. Runnells has developed water treatment technologies for removal of contaminants from discharge waters at numerous mine sites in the western United States and Canada. In addition to his primary field of study in Hydrogeology at Utah State University, he also spent two years studying accounting.

Tim has approximately 20 years of consulting experience in which he has managed multi-disciplinary projects including water treatment, aquifer testing and analysis, surface water and groundwater sampling and characterization, and baseline chemistry investigations. His experience includes characterization of impoundments, waste rock piles, mine sites, industrial sites, and municipalities at locations throughout the United States. Mr. Runnells has written or revised Operations and Maintenance plans for water treatment facilities and Standard Operating Procedures related to drilling, monitoring well completion, and groundwater and surface water sampling.

Jeffrey Y. Cheng has more than 18 years of experience in civil engineering, working for private industry and governmental agencies. He specializes in construction management and water resources. Jeffrey holds a Ph.D. in Water Resources Engineering from the University of Colorado and is a registered PE in Colorado.

He has worked in mine-site development, water diversion, earth-dam design and construction, roadway and bridge design and construction, hydrologic and hydraulic modeling, and stormwater management.

Jeffrey is skilled in the use of numerous engineering software packages, including programs of his own design. He is familiar with governmental regulations as related to engineering designs for land development, floodplain analysis, roadway design, and stormwater control.

Robert D. Hagen (Doug) is the Senior Water Treatment Scientist and has more than 30 years of experience. He has a bachelor's degree in aquatic science. Treatability studies of water and wastewater have been the focus for most of his career. His primary areas of interest have been product development and system design criteria. He specializes in bench-scale studies, usually followed by pilot-scale evaluations. In his consulting work Doug takes the responsibility to design, build, and operate pilot-scale unit processes to evaluate the design criteria for the most cost-effective treatment scheme, providing process information for the design engineers.

Prior to plant start-up and commissioning he assists with oversight for equipment installation and follow-up with plant startup assistance and operator instruction. He also performs plant audits to diagnose possible problem areas or devise scenarios for process upgrades. Doug is experienced in the fields of reverse osmosis and its pretreatment, precipitation processes for heavy metals removal, membrane systems optimization, adsorption and absorption technologies, and sludge dewatering. He has worked with clients in the extractive mineral industries, municipalities, manufacturing, ultra-pure water production, and power generation.

Donald D. Runnells is an advisor to Advanced Environmental Sciences, offering technical and litigation support in the fields of mineral geochemistry, water-rock interaction, water contamination, and mineral deposits. Dr. Runnells has nearly fifty years of academic, industrial, and consulting experience, with a particular focus on mining and mineral processing. He has provided senior litigation support for a large number of industrial clients. He holds a B.S. degree from the University of Utah, and M.A. and Ph.D. degrees from Harvard University. Dr. Runnells has published approximately 90 technical papers in his fields of expertise. In addition to his consulting activities he is a Professor Emeritus and former Chair of the Department of Geological Sciences at the University of Colorado, Boulder. He was appointed by President Bill Clinton to the Nuclear Waste Technical Review Board to review the scientific investigations of the proposed nuclear waste repository at Yucca Mountain, Nevada.

Ryan Egan has over ten years experience in environmental consulting, including industrial hygiene, oil and gas, and permit compliance monitoring. Ryan has worked from Texas to the North Slope of Alaska. He is accredited by the U.S. Environmental Protection Agency and multiple states as an asbestos building inspector, management planner, project designer, and contractor/supervisor, as well as a lead-based paint inspector and risk assessor. Ryan is also a State of Colorado Air Monitoring Specialist. He has served a wide range of clients, including local, state, and federal government organizations with a consistent focus on regulatory compliance and protecting human health and the environment.

He was a project manager for several years on an industrial hygiene contract with the Colorado Department of Transportation, including asbestos inspection, asbestos remediation design and oversight, lead paint inspection, and contaminated soil remediation design and oversight. In addition, he managed an asbestos initiative for the Bureau of Land Management inspecting several hundred buildings throughout the western United States. He conducted mixing zone studies for wastewater treatment facilities in several cities and towns in Colorado, and he has conducted sampling and participated in permit compliance for coal-bed methane operations. Ryan has also worked on remediation of petroleum pipeline releases and remediation and monitoring of several retail site petroleum contamination issues.

Richard Dudginski graduated from Penn State University with a B.S. degree in Environmental Biology. He is skilled in managing projects, budgets, personnel, and resources to successfully complete assignments on time and on budget.

Richard started his career with the Pennsylvania Department of Environmental Resources (PADER), working as a field biologist for the Bureau of Mining and Reclamation. He subsequently gained CERCLA, SARA, and RCRA experience within the Bureau of Waste Management of PADER. As the environmental director for a contract with the U.S. Department of Agriculture (USDA), Richard was responsible for the oversight of all environmental, health and safety, and security concerns at the Eastern Regional Research Center, located in Philadelphia, PA. He has also worked as project manager under a contract with the U.S. Environmental Protection Agency, Region 10, Superfund Technical Assessment and Response Team (START), where he supervised site assessment (PA/SI) and removal action projects. His contributions with the EPA were rewarded with a certificate of appreciation from the regional administrator. During assignments as a consultant to the mining industry, Richard has conducted pilot-scale studies utilizing reverse osmosis and ion exchange technologies to treat contaminated groundwater.

In addition to his environmental career, Richard has achieved success in business as a general manager and business owner. He directed his own company from start-up through nine years of sustained growth while becoming a leader in his industry.

Melissa Chalona has 16 years of experience in civil and environmental engineering and is a licensed professional engineer in Colorado, Wyoming, and Texas. As a project manager and department manager, Ms. Chalona has served as an environmental consultant for public and private ventures, including Phase I and Phase II Environmental Site Assessments, property procurements, construction, permitting, operations, and site-remediation projects. Ms. Chalona has worked extensively with clients to obtain state and local environmental permits and approval for regulated activities. She has developed plans for Storm Water Management (SWMP), Spill Prevention Control and Countermeasure (SPCC), Oil Spill Contingency, and Erosion and Sedimentation Control. She is involved in surface and groundwater monitoring and reporting, air quality monitoring, environmental compliance audits, solid-waste storage, demolition recycling, and site remediation. She has managed asbestos, lead, methamphetamine, and mold projects, including inspections, planning, design, and remediation oversight.

Ms. Chalona is a certified Asbestos Building Inspector and Project Designer for the State of Colorado. She is a certified 40-hour HAZWOPER and HAZWOPER Supervisor, an Accredited Professional in Leadership in Energy and Environmental Design (LEED) and a certified Erosion Control Supervisor. In addition to her consulting activities she is an appointee to the Regional Air Quality Council and past chair and vice-chair for the Larimer County Commissioners’ Environmental Advisory Board.

Jim Macrina has over 40 years of experience in the design of controls and instrumentation in the fields of oil and gas, water and waste water treatment, nuclear power plants, and machine automation control. His educational background is in engineering, mathematics, and instrumentation.

Jim’s expertise is primarily in the area of process design, including loop drawings, controls logic, motor control, plant instrument layout, specifications, data sheets for instrumentation, and sequential flow charts.

Jim has extensive experience in project management, including project costing and budgeting, estimating, bid review, and coordination with other disciplines. He has worked for several major companies, including Coors, Kaiser Engineers, Stearns Roger, Stone and Webster, and Holly Oil Corporation. Jim also has worked as a certified Level-2 document reviewer (Non-Conformance Reports) for the Nuclear Regulatory Commission on assignments at various nuclear plants throughout the U.S.

Past projects include the controls and instrumentation design for many water and wastewater treatment projects in the Rocky Mountain area, Asia, and Central America. In the energy field, Jim has worked on the design of oil-drilling site-controls for ARCO Alaska and oil-shale projects in Morocco and Colorado (Union Oil). His environmental projects include air quality and groundwater recovery for Frontier Refining in Wyoming, a water expansion reclamation project in southern Nevada, and solid-waste incineration projects with Envirotech Corp.

Gene Strom has over 35 years of experience in project management and electrical design of industrial systems. He served as the Department Manager of a major electrical consulting firm in Northern Colorado for over 25 years. In that role his responsibilities included preparation of plans and specifications for both commercial and industrial facilities. Past electrical engineering assignments include resource utilization, load flow analysis, fault current studies, protective device coordination studies, equipment selections, Arc Flash studies and mitigation recommendations, preparation of electrical system documentation, infrastructure upgrades, and electrical system computer modeling.

Gene’s ability to work efficiently with project team members is outstanding. He can facilitate the communications and interface between the owner, the onsite contractor, and engineering resources relating to budget, work scope, schedule, utility company interface, and project. His experience in providing project management and engineering design on a broad range of assignments, coupled with his experience in the field, has been beneficial to efficiently meeting specific project needs and objectives.

Mr. Strom is currently registered as a Journeyman Electrician in the State of Colorado and a Master Electrician in the State of Wyoming. His Professional Association includes the National Fire Prevention Association (NFPA) and International Association of Electrical Inspectors (IAEI).

Mark Abshire is a senior geotechnical engineer with over 20 years of experience in geotechnical and geoenvironmental engineering for public and private sector clients in the United States, Canada, South and Central America, Southeast Asia, Africa, and New Zealand. His project management and project engineering experience include mining, reclamation, public works, civil infrastructure, and industrial facilities. Mark has worked in the areas of mine waste management, environmental compliance, water treatment plants, levees, power generation facilities, and municipal and public developments. His specific expertise includes uranium and precious metals mining, reclamation and closure design of legacy mine sites, mine tailings management, slope stability, construction management, construction materials testing, and forensic geotechnical investigation.

Mark’s educational background includes a B.S. in Engineering Science and an M.S. in Civil (Geotechnical) Engineering, both from Colorado State University. He holds professional engineer (P.E.) licenses in Colorado, Arizona, New Mexico, Utah, Washington and Alaska. Mark also serves as an adjunct professor at Colorado State University, where he teaches civil engineering project management.

Rob Schaut is a senior geological engineer with over 15 years of consulting experience in geological and geotechnical engineering. Rob has special expertise in mine facility and reclamation design, characterization of mine and mine waste facilities, expansive and collapsible soils, forensic geotechnical studies, and foundation design and remediation. His experience includes geotechnical engineering analysis and design, site investigation and characterization, geologic mapping, subsurface investigation, collection and analysis of water and soil samples, geotechnical instrumentation, remediation of distressed foundations, forensic geotechnical investigation, and field construction oversight. He has served as senior engineer or project manager at a variety of project sites including existing and proposed mine and milling facilities, residential developments, commercial developments, and municipalities.

Rob’s educational background includes a B.S. in Geological Engineering and a minor in Civil Engineering from the Colorado School of Mines, as well as a M.A. in Youth and Family Ministry from Denver Seminary. He holds professional engineer (P.E.) licenses in Colorado, Washington, and Idaho. Rob is an active member of several professional societies including the American Society of Civil Engineers (ASCE), the Deep Foundations Institute (DFI), and the Association of Environmental and Engineering Geologists (AEG).