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NRT, an OBG Company

NRT, an OBG Company

Natural Resource Technology (NRT), an environmental science and engineering consulting firm headquartered in Milwaukee, WI, with regional offices in Chicago, IL, East Lansing, MI, and Bloomington, IL, was acquired by OBG in January 2017. This strategic positioning with OBG and its leadership supports a collective commitment to business growth with specific focus on environmental management, evaluation, and remediation of complex sites for the energy utilities, industrial, and federal market sectors. Read more.

About NRT, an OBG Company

NRT, an OBG Company, provides environmental consulting and engineering services to private and public clients in the energy, industrial, real estate, government, and legal sectors. The company’s success is founded on its technical expertise, its relationships built with clients, and its ability to attract and retain highly talented engineering, scientific, and support professionals.

Practice Areas

Engineering and remediation. With the expertise to address a wide range of engineering applications, NRT, an OBG Company, incorporates beneficial reuse and sustainable approaches to remediation. Areas of remedial expertise include a number of in-situ/ex-situ technologies that can be effectively integrated with site redevelopment and regulatory objectives in a cost-effective manner and reduce long-term liability while limiting impact to local communities or environmental receptors.

Environmental investigation. The company’s team of scientists, geologists, and hydrogeologists are experienced in all aspects of environmental characterization including innovative and traditional methods for conceptual site models to assess exposure and data management. This expertise extends from upland areas into rivers and lakes, where characterization of sediment contamination can be especially challenging.


Learn more about OBG’s environmental services.

Meet Members of Our Team

Laurie Parsons, PE

Senior Vice President, Environment

Laurie has a breadth of experience in the core services offered by NRT, an OBG Company. She regularly consults for clients on environmental liability matters at the corporate strategic level, as well as on individual environmental programs or projects needing remedial decisions, cost impact analysis, due diligence reviews, redevelopment considerations, and interfacing with legal counsel and agency advisory groups on technical regulatory matters.

Richard Fox
Vice President, Environment

A nationally-recognized leader in sediment management, Rick brings extensive experience and creative scientific principles to the table as he assists clients with meeting challenges in addressing contaminated sediments. Whether a multi-site or multi-phase program, his philosophy is to adaptively build on results from successive individual projects to better focus client resources and more efficiently manage contaminated sediment.

Richard Weber, PE
Senior Vice President, Environment

Rich fills a number of leadership roles, from directing project teams on large-scale engineering and remediation projects to developing and refining technical practice standards for the company’s sediment management and remediation services. He is a technical resource to clients on their more complex projects. His background in managing large construction projects and in geotechnical engineering is an ideal complement to company-wide experience in executing projects along waterways and restoring waterfront areas.

John Nardozzi
Principal Engineer

As the leader of NRT’s Chicago office, John directs NRT’s consulting practice and staff in Chicago and throughout Illinois. John has more than 30 years of environmental consulting and engineering experience, with specific expertise in site investigation, risk-based evaluation, remedial design, and brownfield redevelopment. He has led environmental due diligence and compliance programs across the U.S., including stormwater pollution prevention plans, spill control plans, and regulatory compliance programs for companies with multiple industrial facilities. John also has provided litigation support in environmental matters related to underground storage tank compliance, site clean-up costs, and facility siting.

Denise Kay, PhD
Principal Scientist

Denise is the leader of NRT’s East Lansing, MI office and a nationally-recognized expert in environmental toxicology. With specific expertise in contaminant fate, ecological risk assessments, and project management, her experience embraces organic and inorganic contaminant investigations in both aquatic and terrestrial environments. Denise provides value to clients on complex issues, as well as emergency response efforts to resolve environmental contamination issues. She has authored more than 30 peer-reviewed journal articles on topics covering wildlife chemical exposure, food-chain transfer, environmental toxicology, contaminant asorption, and bioavailability.

Tim Olean
Principal Engineer

Tim is a nationally-recognized in-situ stabilization/solidification (ISS) expert with extensive experience in complex remediation planning and implementation. He has managed feasibility studies, treatability and pilot studies, design and design-build, and construction management for remediation of polycyclic aromatic hydrocarbons (PAHs), non-aqueous phase liquids (NAPL), coal tar, and impacted sediments. Over his career, Tim has completed 18 ISS remedies on coal tar and wood treating sites and has been involved in the remedial planning of several more.