Careers
Subscribe

Call Us: 972.661.8100

Get to Know Us
Our Culture Code of Conduct Mergers and Acquisition
Career Opportunities
Careers Submit a Resume
Put Your Degree to Work

We assist clients through a combination of consulting support, technology-based solutions, professional training, and staffing services.

View Open Positions

Jose Orsini

Kathian Pellot on July 14, 2025

Mr. Orsini currently serves as Director of Trinity’s EHS Performance & Risk Management (EPRM) Business Line. Mr. Orsini has over 35 years of multimedia environmental permitting and compliance expertise. Mr. Orsini’s technical experience includes sustainability & climate change, energy management and auditing, transaction diligence, permitting for major and minor air sources, preparing environmental impact statements and environmental assessments for NEPA compliance, air quality monitoring, permitting for fill/dredge activities on waters of the US, hazardous waste management, spill prevention control and countermeasure plans, wastewater and storm water permitting, toxic release inventories, chemical accident prevention, chemical terrorism, facility security, MARSEC, fire prevention, occupational safety and health, and hazardous chemicals reporting.

Mr. Orsini has assisted organizations in industries such as cement and concrete batch plants, oil & gas, general manufacturing, metal recycling facilities, steel and aluminum mills and foundries, food processing plants, distilled spirits plants, chemical manufacturing and distribution plants, pulp and paper, petrochemicals and plastics, rock crushing and quarries, sand processing, site developers, manufacturers of plastics and composites, and building materials suppliers. He has conducted comprehensive EHS audits and assessments and general EHS and sustainability work at various industries in the conterminous United States, Hawaii, Alaska, Puerto Rico, the US Virgin Islands, Mexico, Argentina, and Uruguay. Mr. Orsini also assists clients in responding to federal and state notice of violations and enforcement on environmental non-compliance issues.

Mr. Orsini earned a Master in Environmental Engineering and Science from The Johns Hopkins University’s Whiting School of Engineering, and held the Certified Energy Auditor (CEA) designation from 2013-2019.

Casey Lenhart

Radhika Silhar on July 3, 2025

With nearly three decades of professional experience, Casey Lenhart is Director of Monitoring Services. He is an expert in air quality and his professional experience includes managing and participating in a wide variety of air quality and meteorological programs for both governmental and industrial clients throughout the United States. Casey has extensive and proven experience with instrumentation, system integration, calibration, auditing, and quality assurance relating to measurements of TSP, PM10, PM2.5, O3, CO, SO2, NO-NOx-NO2-NOy, VOC, and Methane/HC, scene and visibility, as well as all meteorological parameters on 10- to 100-meter meteorological towers. Beginning his career as a site technician, Casey progressed to managing PSD, NRC, SPM, and SLAMS meteorological and air quality monitoring programs. As a project manager, his responsibilities include oversight of site selection, tall tower and ambient site installations, routine site visits by MSI/Trinity technicians, sampler and analyzer calibrations, performance audits, sensor repair, maintenance, and/or replacement, data management, data validation, and reporting.

In addition, Casey has extensive experience with numerous communication platforms including satellite, RF telemetry, and IP cellular, all coupled with data acquisition equipment. He has extensive experience in data logger programming as well as peripheral device-conditional control via analog signals and digital MODBUS protocol. He has also designed and fabricated an exhaustive list of monitoring equipment systems for use in air quality monitoring, weather modification, sample collection, and atmospheric tracer gas measurement programs. The types of equipment include: automated samplers, automatic calibration systems, remote controlled data acquisition systems, and other remote controlled and manually controlled equipment.