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  • Petaluma, CA
    Phone: 707.794.0400
    Denver, CO
    Phone: 720.306.8322
  • Air Quality

    Illingworth & Rodkin provides air quality analysis, greenhouse gas (GHG) emissions studies, and community risk assessments on a wide variety of projects, such as wastewater treatment facilities, waste management facilities, quarries, industrial facilities, highways and roadways, freight hauling and commuter rail, mixed-use residential and transit-oriented development, schools, construction, office uses and more. Illingworth & Rodkin's in-depth approach to complex and dynamic modeling scenarios and conveying highly technical concepts to the public reader has made us an industry leader. Since the firm's founding in 1987, our consultants have worked with federal, state, and local agencies, as well as private clients to develop viable and defensible air quality, GHG, and community risk reduction strategies and mitigation.

    Environmental Projects

    • Federal & state environmental assessments (NEPA/CEQA)
    • Community risk assessments
    • Transportation projects
    • Proposed land use developments
    • Control plans and ordinances
    • Clean Air Plan consistency appraisals
    • Qualified GHG Reduction Strategy consistency evaluations
    • Conformity determinations
    • Peer research reviews
    • Meteorological data analysis

    Computer Modeling

    • Air pollutant and GHG emissions estimation using CalEEMod, EMFAC, MOVES, AP-42
    • Traffic and construction dispersion modeling using CALINE4, CAL3QHC, AERMOD
    • Stationary air pollution source modeling using EPA-approved models (e.g., AERSCREEN, ISCST3, AERMOD)
    • Meteorological data analysis
    Who We Areimg
  • An acoustical engineering firm with experience since 1987 in architectural acoustics learn more
  • Capabilitiesimg
  • Expert consultants dedicated to providing clients with quality service in acoustics management learn more
  • Past Performanceimg
  • Since 1987 Illingworth & Rodkin consultants have conducted over 4,500 proprietary studies in... learn more
  • In the Newsimg

    Illingworth & Rodkin has expanded its presence in the Rocky Mountain Region...learn more

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