Mary has over 20 years of experience in a vast array of environmental, natural resources, threatened and endangered species, and permitting consulting services. She is experienced in all aspects of Nationwide, Isolated, and Individual Section 401/404 permits for large and small projects; coordinating with federal and state agencies for Threatened and Endangered Species and Cultural Resources. Mary also completes stream and wetland mitigation design as part of Section 401/404 permitting and prepares Categorical Exclusion, Environmental Assessment, and Section 4(f) and 6(f) documents related to National Environmental Policy Act (NEPA) documentation. She is familiar with all aspects of due diligence, including performing environmental site assessments (ESAs) and screenings, U.S. Army Corps of Engineers (USACE) HTRW reports, Phase II ESAs, groundwater and soil sampling, asbestos surveys, and underground storage tank services. Her experience also includes preparation of Storm Water Pollution Prevention Plans (SWPPP) and Spill Prevention and Control and Countermeasure (SPCC) plans.

Ms. Rourke has more than 29 years of experience in the transportation industry and a deep knowledge of roadway and bridge design and plan preparation. Her design expertise includes drainage, roadway geometrics, pavement design, pavement markings, roadway signing, maintenance of traffic, and right-of-way design. She has extensive project experience with ODOT as well as counties and municipalities throughout the state of Ohio.  She has led numerous transportation projects ranging from small culvert replacements and intersection improvements to large reconstruction and widening of highways and interchanges.

Ms. Julie Carpenter, CPG, is a hydrogeologist who brings over 25 years of experience in environmental site investigations, modeling, and remediation. She has been responsible for modeling risk to human health and ecological receptors under RCRA, the Ohio VAP, and Ohio BUSTR programs and preparing summary reports which have been approved by the U.S. EPA, Army Corp of Engineers, Ohio EPA, and BUSTR. She has also evaluated risk to human receptors to be included in obtaining funding from the Ohio Department of Development (DOD) or the U.S. EPA for remediation of brownfield properties. Projects have included determining total potential risk to residential, recreational, commercial/industrial, and construction/excavation worker populations due to impacted media through direct contact (dermal exposure, ingestion, and inhalation of particulate dusts) or vapor intrusion at brownfield sites, calculating site-specific action levels or standards, and using risk assessment results to guide remediation and redevelopment.

Ms. Carpenter has been responsible for conducting semi-analytical and finite difference groundwater flow modeling in connection with water resources and contaminant transport.  She has evaluated potential areas of influence for industrial facilities due to groundwater pumping, mining companies due to aquifer dewatering, and 1-, 5-, and 10-year time of travel areas for source water protection plans for a variety of municipalities and private companies. She has been responsible for planning, implementing, and analyzing data from 24 hour to 7-day pump tests for public water consumption and industrial use and water well design.

Mr. Scott Ross has over 22 years of environmental consulting experience. His technical background includes jurisdictional waters delineations, threatened and endangered species surveys, ecological surveys, waterway permitting, and National Environmental Policy Act (NEPA) environmental documentation – Categorical Exclusion (CE) and Section 4(f). Mr. Ross also has experience with stream and wetland mitigation, and storm water pollution prevention plan (SWPPP) review and inspection management. He has managed environmental services across a wide range of complexity for projects throughout Ohio and surrounding states. His project experience has involved infrastructure, utilities, energy, water resources, residential, commercial, and industrial development. He routinely works with stakeholders and public agencies to provide regulatory compliance support and guide projects through the permitting process. Mr. Ross is a Professional Wetland Scientist (PWS) and maintains Ohio Department of Transportation (ODOT) prequalification for Ecological Surveys, Waterway Permits, and Stream and Wetland Mitigation.

Sharon Herman has more than twenty years of experience in Environmental Engineering.  She has been with STONE for more than ten years focusing on environmental compliance for manufacturing, industrial, and governmental facilities.  She brings her regulatory experience in air pollution control, permitting, reporting, and stack testing to work for her clients.  Sharon conducts full facility audits across all media (air, stormwater, wastewater, hazardous waste, contingency planning, …) to create compliance solutions.   Her work at STONE has included wastewater and NPDES permitting, and preparation of environmental emergency plans for both industrial and government clients.  She has written numerous Spill Prevention, Control, and Countermeasure (SPCC) Plans and Stormwater Pollution Prevention Plans (SWP3).  Sharon has assisted clients with reporting requirements such as Toxic Release Inventory (TRI), Hazardous Waste Biennial Reporting, Tier II Chemical Reporting, and Air Emission Reporting.  She has developed and delivered training programs on all areas of environmental compliance.

Dr. Michael Hoggarth, Professor in the Department of Biology and Earth Science at Otterbein University, is joining the STONE team as Principal Ecologist. He received his B.S. in Biology from Seattle Pacific University, his M.S. in Biology from the University of North Alabama, and his Ph.D. in Zoology from The Ohio State University, where he specialized in freshwater mussel ecology and systematics. He was an Environmental Scientist with the Ohio Department of Transportation, Bureau of Environmental Services from 1987-1992. He has published extensively on the life history, ecology, and systematics of mussels in the family Unionidae, including numerous peer-reviewed papers, and he is co-author of a book entitled, The Freshwater Mussels of Ohio (2009). Since leaving ODOT, he has performed thousands of aquatic assessments and mussel surveys in partnership with many ecological, environmental, and engineering firms across the Midwest. He has been a member of the Ohio Academy of Science since 1980, a Fellow of the Academy since 1999, and was President of the Academy from April, 2014 to April, 2016.

Mr. Eric Slosser has over 30 years of experience as an environmental scientist specializing in Phase I Environmental Site Assessments (ESAs), Phase II ESAs, Ohio Department of Transportation (ODOT) CE documentation, Regulated Materials Review (ESA Screenings), Asbestos-Containing Material (ACM) Surveys, and Underground Storage Tank (UST) Closures. Mr. Slosser is a Certified Asbestos Inspector and Management Planner in Ohio, Kentucky, and West Virginia.  He is also a Certified Professional in Stormwater Quality (CPSWQ) and has been conducting Stormwater Pollution Prevention Plan (SWPPP) inspections for over ten years.  He has been involved in a great variety of projects, most notably in charge of tribal coordination for National Environmental Policy Act (NEPA) compliance for all cellular communication tower projects throughout the U.S. for over 5 years.

Janet is an experienced engineer in wastewater treatment design, industrial pretreatment program management, water treatment design, spill prevention, system inspection, and regulatory compliance. She has managed and developed standards for industrial pretreatment programs at several municipalities to ensure the protection of facilities and compliance with Ohio EPA regulations and is adept at NPDES and Permit-to-Install (PTI) submittals. She has consulted with cities, industrial leaders, and residents to advise on regulatory compliance and spill prevention, and to review complaints and drive problem resolution.

Janet has completed and passed the ODOT Bridge Inspection Training class.   Training under Jeff Baird, STONE’s lead bridge engineer, she has gained extensive experience in bridge inspection (28 bridges) in Ohio as well as load rating. Janet is familiar with the 23 metrics dictated by FHWA for compliance and the importance of bridge inspections being accurate and completed on time. As part of the bridge inspection process she has reviewed past inventory and inspection records, gathered information pertinent to field work, increasing efficiency and focus for each inspection.

Ms. Samantha Robbins has over four years of environmental consulting and engineering experience.  In this short amount of time she has managed the day-to-day on-site responsibilities for the Portsmouth Bypass Highway Realignment – recently recognized by the publication Roads and Bridges as the #4 road project in the country for 2017.  Her expertise includes environmental compliance review and monitoring, waterway permitting, agency coordination, and stormwater inspection and SWPPP review.

Mr. Robert Smith has 25 years in the private consulting sector. He has experience managing large and complex projects for state and private clients including state DOTs, municipalities, telecommunications providers, railroads, energy companies, private developers, and retail.   He has extensive knowledge of the environmental regulatory process in Ohio and surrounding states, and a very strong working relationship with the United States Army Corps of Engineers, the Ohio Environmental Protection Agency, the Ohio Department of Transportation and the Federal Communications Commission.  He has completed investigations and regulatory compliance activities in all 88 Ohio Counties, as well as an additional 17 states throughout the United States.  He is Pre-Qualified with the Ohio Department of Transportation’s Office of Environmental Services for Ecological Surveys, Environmental Document Preparation (CE, EA/EIS), Regulated Materials Review, and Waterway Permits.

Mr. Khan Takal has an MS in Civil Engineering and 11 years of experience in civil engineering consulting. He has knowledge of water sector projects survey, design, and plan preparation. His design expertise includes small infrastructure including hydraulic structures and drainage. He has experience with USACE and USAID, World Bank, Asian Development Bank, JICA and UN-funded projects in different provinces of Afghanistan. His design experience includes small infrastructure and hydraulic analysis for small- and large-scale projects. His surveying experience includes topographic surveys, boundary surveys for private and public civil design projects, encompassing both survey fieldwork utilizing total station and GPS, and base mapping utilizing AutoCAD Civil 3D. He has used Arc-GIS for large scale water projects watershed management, ESIA, and RAP preparation. He has used HEC-RAS and Hydro-CAD for stream and drainage hydraulic analysis.

Hank has extensive experience in the planning and design of environmental and civil engineering projects. His environmental engineering experience includes Phase I and II environmental site assessments, design of remediation systems, and development of environmental compliance programs for industry. His civil engineering background includes the design of systems for storm water management, industrial wastewater pretreatment, and stream restoration projects.

Mr. Jordan Brennan is an environmental scientist with over 3 years of professional experience with ecology and environmental sciences. His past experience includes working as an aquatic specialist maintaining aquatic ecosystems to better promote occupancy, survival, and reproduction of native flora & fauna. He also has experience serving as a park naturalist providing environmental interpretation and conducting various wildlife surveys including: breeding bird surveys, bat surveys, and vernal pool surveys. His undergraduate education included a capstone course where he delineated a wetland and provided written environmental guidance for Coyote Run in Pickerington, Ohio.

Mr. Alex Brown is an environmental scientist with over 2 years of professional experience with ecology and environmental science. His background includes working as an aquatic biologist managing nuisance and invasive aquatic species, working as a geotechnical technician performing QA/QC on construction sites, and as an Environmental Specialist II in the Division of Materials and Waste Management at the Ohio Environmental Protection Agency.

Ms. Carly Oberholzer is an environmental scientist who brings valuable knowledge in environmental site assessments and National Environmental Policy Act (NEPA) compliance, stormwater, wastewater, and industrial compliance, as well as hands-on environmental sampling experience. She also has experience on highway construction and maintenance projects, completed under tight deadlines while also following strict safety precautions.