Our Environmental Engineers & Scientists

With more than 100 years of combined experience, and well over 100 environmental site closures, McGinley & Associates is highly regarded by regulators and clients alike.

Science & Engineering Staff

You will need registered professionals to comply with local, State, and federal regulations. The McGinley & Associates staff experts include:

  • Professional Engineers (P.E.)
  • Professional Geologists (P.G.)
  • Certified Hydrogeologist (C.Hg.)
  • Certified Environmental Managers (C.E.M.)
  • Certified Geographic Information Systems (GIS) Specialists
  • Certified Hazardous Material Manager (C.H.M.M.)
  • HAZMAT Specialists
  • Environmental Technicians

We offer licensed professionals for Arizona, California, Idaho, Nevada, Oregon and Utah.

With current NCEES Records on file, MGA is able to quickly obtain comity/reciprocity licensure in any state.

The MGA Management Team – We Offer Experience, Performance & Results

Joe McGinley - PE, PG, CEM

Joe McGinley

President & CEO, P.E., P.G., C.E.M.

Mr. McGinley is the founding Principal of MGA, with more than 25 years of service to long standing and new clients alike. He has developed experience through a wide range of project types, environmental conditions, and multiple regulatory agency liaisons. Mr. McGinley has a strong background in site characterization, corrective action plan development and in the design and implementation of remedial systems. He is acutely familiar with federal, State and local environmental regulations and has developed a familiar relationship with the administrators of those agencies throughout the West.

John Snow

John Snow

Principal - Minerals & Energy

Mr. Snow has 31 years of geothermal and oil and gas exploration, production, and regulatory experience in five western states and Canada. His considerable regulatory experience includes leasing on federal and state lands, correlative rights, spacing orders, hearings, and unitization and pooling agreements. In 2007 Mr. Snow was appointed by the Governor of Nevada to serve as the State’s Geothermal Energy Commissioner for the Commission on Minerals. He currently serves on the Executive Board of the Mackay School of Science, Board Member of the Nevada Bureau of Mining and Geology (NBMG) and the Great Basin Center for Geothermal Development at UNR, and is an active officer and member of a number of professional societies.

Brett Bottenberg - M.S., C.E.M.

Brett Bottenberg

Project Engineer, C.E.M.

Mr. Bottenberg is an Environmental Scientist and Engineer with more than 15 years of professional experience in conducting Phase I and II Environmental Site Assessments (ESAs), National Environmental Policy Act (NEPA) reviews, Spill Prevention, Control, and Countermeasure (SPCC) Plans, Bioremediation Plans, Brownfields Assessments/Project Management, Leaking Underground Storage Tank (LUST) project management, and analytical data review. Applied experience includes conducting over 500 Phase I ESAs, Phase II ESAs, SPCC Plans, and NEPA reviews throughout Nevada, California, Utah, and Arizona. Mr. Bottenberg’s diverse background provides project management experience in both the regulatory and construction industries. Further, Mr. Bottenberg has valuable knowledge pertaining to contaminant transport, chemical interactions, and remediation systems. Mr. Bottenberg is also the McGinley & Associate’s (MGA) Las Vegas office managing partner.

Brian Giroux - PG, CHg, CEM

Brian Giroux

Principal Hydrogeologist, P.G., C.Hg., C.E.M.

Mr. Giroux is a Professional Geologist, Certified Hydrogeologist and Certified Environmental Manager with 23 years of professional experience in site and resource investigations and environmental consulting, serving the public and multiple government and business sectors. He has substantial experience with environmental investigations, groundwater and air monitoring, and remediation program management for projects throughout the western US. He has received specialized training for management of hazardous materials and waste. He has performed numerous Human Health Risk Assessments for petroleum sites in California and Nevada, including for soil and water ingestion and indoor air inhalation pathways. He has also conducted program management for numerous public water systems in California and Nevada.

Ryan Defilippi

Ryan Defilippi

Staff Engineer, E.I.

Mr. Defilippi is a civil engineer with over six years of combined academic and professional experience in civil engineering and environmental consulting. Mr. Defilippi’s areas of expertise include conducting/managing Phase I and II Environmental Site Assessments (ESAs), technical report writing, cost estimations and proposals, project oversight, analytical data review, Toxics Release Inventory reporting, and asbestos sampling.

Tony Dimpel

Tony Dimpel

Project Manager/Director of Air Quality, P.E., C.E.M.

Mr. Dimpel is a civil and environmental engineer with eight years of academic and professional engineering experience. His areas of expertise include air quality permitting and compliance, air dispersion modeling, water and wastewater treatment, fate and transport of chemicals in the environment, environmental microbiology, and water quality. Mr. Dimpel’s responsibilities have included project permitting, regulatory liaison, regulatory reporting, drilling oversight, conceptual site model (CSM) development, environmental site assessments (ESAs), work plan development, health and safety management, cost estimations and proposals, and project oversight. He also has a background in engineering research and currently serves as a part-time instructor at the University of Nevada, Reno in the civil and environmental engineering department.

Justin Fike, CEM

Justin Fike

Project Hydrogeologist, C.E.M.

Mr. Fike is a hydrogeologist with over nine years of professional consulting experience. He has a background in civil engineering design, hydrogeology, and construction management, with an emphasis in grading and hydrologic analysis. His wide-ranging responsibilities have included project management and budgeting, project permitting, comprehensive work plan development, precision mapping and surveying, grading and infrastructure design, drilling oversight, environmental site assessment (ESA), hydrologic and hydraulic modeling, conceptual site model (CSM) development, remedial design and site closure, construction management, health and safety management, aquifer testing, and comprehensive data trend analysis.

Caitlin Jelle

Caitlin Jelle

Project Engineer, P.E.

Ms. Jelle is a Professional Environmental Engineer with five years of environmental consulting experience. Her areas of expertise include Phase II environmental site assessments (ESAs), remediation of hazardous and regulated wastes in soil, Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) site documentation and remediation, and characterization and management of non-hazardous and regulated wastes. Ms. Jelle’s responsibilities have included comprehensive work plan and report preparation, regulatory liaison, regulatory reporting, permit preparation, and project management as well as field activities including environmental media sampling, drilling oversight, excavation oversight, health and safety management, and site superintendent.

Ryan Jones

Ryan Jones

Project Geologist, C.E.M.

Mr. Jones is a Nevada Certified Environmental Manager with over 13 years' experience, and has extensive experience managing projects, personnel, contracts, and subcontractors. Mr. Jones is an OSHA Certified Asbestos Inspector for the states of Nevada and Texas. Mr. Jones is knowledgeable in areas of indoor air quality assessment; sampling of hazardous materials such as asbestos, lead-based paint, mold, and radon; project design for abatement/mitigation; soil and groundwater characterization; design, permitting, installation, and operation of soil and groundwater remediation systems; client and regulatory agency liaison for project operations and funding via state funds; evaluation and interpretation of environmental regulatory policy; Third Party litigation support; ESA historical document review, site reconnaissance, and data compilation; vapor intrusion assessment; SWPPP design and inspection; and comprehensive report preparation.

Tracy Johnston - PE, CEM

Tracy Johnston

Senior Remediation Engineer, P.E., C.E.M.

Mr. Johnston is a senior project manager with over 20 years' experience in civil engineering and environmental projects. Mr. Johnston has served as project manager for numerous Phase II assessments, designing, installing and successfully remediating both hazardous and regulated wastes in soil and groundwater. Some of Mr. Johnston’s remedial designs include advanced in situ oxidation, aerobic/anaerobic biological treatment, air sparging, soil vacuum extraction, intrinsic remediation, dual-phase extraction, and groundwater pump and treat.

Ben Peterson

Ben Peterson

Project Manager, GIS Specialist, P.G., C.E.M.

Mr. Peterson is a Professional Geologist and Geographic Information Systems (GIS) Specialist with approximately eight years of professional experience that includes: project management; environmental due diligence assessments for commercial real estate transactions (Phase I and II environmental site assessments); GIS analysis; water resource and groundwater investigations; water well permitting, design and construction; water quality sampling; geological hazard assessments; and technical report writing. Mr. Peterson’s versatile experience is the result of his eagerness to accept new challenges, combined with his background and education in geoscience, environmental science, and mapping.

Jeri Prante

Jeri Prante

Staff Engineer, E.I.

Ms. Prante is a civil and environmental engineer with six years of academic and professional engineering experience. Her areas of expertise include water and wastewater treatment, fate and transport of chemicals in the environment, water quality, and membrane technology. Her responsibilities include various work products such as reports, correspondence, and permits as well as field activities including groundwater sampling, oversight of drilling activities, and oversight of remedial activities.

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