David Wall, PE, is the Director of Refinery Sector Services and a 26-year veteran of the firm. As Director, David leads complex projects that integrate technical expertise with local regulatory insight to effectively meet the needs of refinery clients. With extensive hands-on experience at refinery sites, he supports daily compliance operations and crafts strategic permitting solutions. This extensive experience has enabled David to develop deep, specialized knowledge of the refining industry.

He has significant compliance support, permitting, and auditing experience in the petroleum refining and petrochemical industries. He has managed permitting projects ranging from minor modifications to multi-billion dollar capital projects. He has performed consent decree- based and internally driven compliance audits at refineries and chemical plants with topics ranging from general Title V compliance to historical PSD applicability issues and U.S. EPA enforcement initiative “marquee” issues such as BWON, NSPS J/Ja, LDAR, and flaring. He has provided consulting and expert support in a number of permit appeals and litigation matters. He also serves as the instructor for Trinity’s Clean Air Act Workshop for Petroleum Refineries and Benzene Waste Operations NESHAP professional training courses.

David graduated from the Massachusetts Institute of Technology (MIT) with a Bachelor of Science degree in Chemical Engineering and is a registered professional engineer (PE) and Certified Manager (CM).

As Director of Chemical Sector Services, Inaas, PE, coordinates effective project teams that comprise the technical and local regulatory knowledge to most effectively address client needs. Through her extensive experience working onsite at chemical manufacturing facilities, assisting with daily compliance activities as well as developing effective permitting strategies, Inaas has developed the in-depth knowledge that allows her to serve as a valuable environmental resource to many facility types and sizes.

Inaas’ technical expertise includes regulatory applicability analysis, MACT and NSPS compliance, Title V and construction permitting, New Source Review permitting, emissions inventories, compliance management solutions, TRI reporting, and Risk Management Planning. She is the instructor for a number of related Trinity training courses including Compliance Management for Fugitive Emissions & LDAR. Inaas earned a B.S. in Chemical Engineering from the University of Kentucky and an M.S. in Chemical Engineering from the University of Texas.

Principal Consultant Tony Jabon, PE, serves as Regional Director for Trinity’s Carolinas, Louisiana, and Mississippi region (Charlotte, Raleigh, Baton Rouge, New Orleans, and Jackson, MS offices). Tony is based in Trinity’s Charlotte, North Carolina office. Since joining Trinity in 1998, Tony has extensive experience providing consulting services to a variety of industries, including building products, wood products, and automotive assembly facilities. He specializes in PSD/NSR permitting, Title V permitting, NESHAP compliance, and Compliance Assurance Monitoring plans. Tony has also participated in client negotiations with various regulatory agencies and assisted facilities with compliance management services.

In addition to his consulting services, Tony is an instructor for Trinity’s national Title V Compliance Workshop course. He earned both a B.S.E. in Civil and Environmental Engineering and a M.S.E. in Environmental Engineering from the University of Michigan. Tony also holds a M.B.A. in Strategy from the Cox School of Business at SMU.

Christine Chambers is the Regional Director for Trinity Consultants’ Central States Region and has more than 26 years of experience helping industrial facilities navigate environmental strategy, air quality permitting, regulatory compliance, and project development. She has led permitting and environmental evaluations for a wide range of industries, including data centers, power generation, aerospace, copper wire manufacturing, steel and metals manufacturing, and other industrial sectors. Her expertise includes strategic air permitting assessments, emissions inventories, major and minor New Source Review (NSR) permitting, Prevention of Significant Deterioration (PSD) and nonattainment applicability evaluations, Title V permitting, and compliance audits.

Ms. Chambers routinely supports clients during the early stages of greenfield and expansion projects by evaluating permitting constraints, regulatory risks, emissions impacts, and authorization pathways to inform siting and development decisions. She has extensive experience working with state and federal regulatory agencies and advising project teams on strategies that maintain operational flexibility while meeting environmental requirements.

She oversees Trinity’s Central States Region, which includes offices in Dallas, Tulsa, Kansas City, St. Louis, West Des Moines, and Omaha. Her experience spans environmental audits, air quality permitting, air quality modeling, permitting strategy, federal permitting avoidance analyses, and compliance programs across numerous industrial sectors.

Ms. Chambers holds a Master of Business Administration from Southern Methodist University, a Master of Science in Environmental and Water Resources Engineering from The University of Texas at Austin, and a Bachelor of Engineering in Civil Engineering with a concentration in Environmental Engineering from Vanderbilt University.