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TRC Companies

Environmental engineering and sustainability consulting services

Air Quality Modeling Scientist

Environmental EngineeringConfirmed live in the last 24 hours
Full-timeHouston, TX, USAIn-person

About the Job

Requirements

  • Experience with AERMOD, AERMET, BPIPPRM, and AERMAP.
  • A bachelor's degree in Atmospheric Science, Meteorology, Engineering, Environmental Science, or a related technical discipline.
  • Two to five years of experience in air quality permitting, air dispersion modeling, and regulatory compliance.
  • Direct experience with Texas air dispersion modeling projects.
  • Strong analytical and quantitative problem-solving skills.
  • Excellent written and verbal communication abilities.
  • Numerous examples of experience with Texas air permitting regulations.

Responsibilities

  • Prepare and evaluate model inputs, including emissions inventories, meteorological data, terrain and receptor data, and building downwash analyses.
  • Perform air dispersion modeling analyses using AERMOD, CALPUFF, screening models, and related regulatory tools.
  • Conduct model performance evaluations and quality assurance reviews.
  • Support Prevention of Significant Deterioration (PSD), New Source Review (NSR), and other modeling demonstrations.
  • Evaluate impacts for criteria pollutants including PM2.5, sulfur dioxide, nitrogen dioxide, carbon monoxide, and hazardous or toxic air pollutants.
  • Assist senior modelers in addressing complex regulatory modeling issues and agency comments.
  • Prepare technical reports summarizing modeling methodologies, assumptions, and results.
  • Assist in preparing Texas air permit applications, including NSR permits, PSD permits, Permit by Rule authorizations, and Standard Permits.
  • Develop emissions calculations and emissions inventories.
  • Support Title V permitting and compliance projects.
  • Research and interpret federal, state, and local air quality regulations.
  • Participate in regulatory strategy discussions for industrial facilities.
  • Work with senior technical specialists and modeling subject matter experts to develop advanced modeling and permitting skills.
  • Participate in internal modeling training programs and technical workshops.
  • Learn emerging modeling techniques, regulatory guidance, and industry best practices.
  • Contribute to the development of modeling templates, quality assurance and quality control procedures, and technical tools.
  • Support multiple concurrent client projects.
  • Coordinate with engineers, scientists, meteorologists, and permitting specialists.
  • Assist in preparing technical memoranda, permit applications, and client deliverables.
  • Participate in client meetings, agency discussions, and project planning activities as experience grows.

Desired Qualifications

  • Experience with CALPUFF.
  • Completion of PSD modeling projects.
  • Strong knowledge of Texas Commission on Environmental Quality (TCEQ) permitting programs.
  • Experience with power generation modeling and permitting.
  • Experience with oil and gas, liquefied natural gas, chemical manufacturing, or industrial permitting.

About the Company

TRC Companies

Environmental engineering and sustainability consulting services

TRC Companies is a professional services firm that delivers environmental, engineering, technology, and sustainability solutions for public entities, private businesses, and government agencies. The company helps clients through environmental feasibility studies, consulting, engineering design, and construction management across markets such as air quality analysis, power industry services, and climate change studies. Its services are provided on project-based contracts and through long-term service agreements, enabling clients to plan, design, and implement infrastructure and environmental initiatives. What sets TRC apart is its 50-year track record, broad mix of capabilities, and steady focus on delivering measurable outcomes and practical solutions that improve safety, efficiency, and sustainability. The company's goal is to help clients advance infrastructure and environmental projects by offering concrete, quantified results and practical expertise.

Company size
5,001-10,000
Company stage
IPO
Headquarters
Lowell, MA
Founded
1961

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