• Petaluma, CA
    Phone: 707.794.0400
    Denver, CO
    Phone: 720.306.8322
  • Team

    Paul R. Donavan, Sc.D., Principal

    Dr. Donavan began his professional career in acoustics in 1976. At General Motors from 1979 to 2001, Dr. Donavan led projects and group activities in tire/road noise, interior noise control, aerodynamic noise generation, and exterior vehicle passby noise. Prior to 1979, he worked at Wyle Labs and the National Bureau of Standards on issues of environmental noise and noise measurement. Although Dr. Donavan has a broad background in acoustics, his particular areas of expertise include tire noise, sound intensity methods, aeroacoustics and wind tunnel testing, and structure-borne sound analysis. He received his Doctor of Science degree from the Massachusetts Institute of Technology specializing in Acoustics with research in urban sound propagation. Dr. Donavan has authored numerous technical papers and given short courses in his areas of expertise. In 2001, he served as President of the Institute of Noise Control Engineers (INCE-USA), and was recently appointed Secretary General of the International Institute of Noise Control Engineers (I-INCE).

    James A. Reyff, Principal

    Mr. Reyff began his environmental studies career in 1989 as a meteorologist. He joined our firm in 1995 as an air quality and acoustical specialist, with a broad background in meteorology, air quality, and noise. Mr. Reyff has prepared both air quality and noise technical reports for Caltrans projects. In a particular research study funded by Caltrans, Mr. Reyff combined his expertise in meteorology and transportation noise to investigate long-range diffraction and reflection of noise from sound walls under varying meteorological conditions. He earned his BA degree in Geoscience (Meteorology) from San Francisco State University.

    Fred M. Svinth, Associate AIA, Principal

    Mr. Svinth has been consulting in the U.S. and internationally on various aspects of acoustics and vibration and has worked continuously as an acoustical consultant since 1997. He has consulted on numerous projects for public, private and government clients. This includes the study of environmental noise and vibration related to land-use compatibility, noise control for conventional and alternative energy power generation systems, and the testing and design of sound isolation and room acoustics systems for all types of residential structures, entertainment venues, religious facilities, and industrial buildings. In addition to his work in acoustics, he has professional experience as a power plant field engineer and an architectural designer. Mr. Svinth holds degrees in Engineering from California Polytechnic State University in San Luis Obispo (BSME, 1989), and Architecture from the University of Texas at Austin (M.Arch, 1996). Mr. Svinth is a member of both the Institute of Noise Control Engineers and the Acoustical Society of America, and an Associate of the American Institute of Architects.

    Michael S. Thill, Principal 

    Mr. Thill began his professional career in environmental acoustics in 1999. His expertise lies in field research, data analysis, and noise modeling. He has conducted numerous field surveys in a variety of noise environments and has authored technical noise reports for various types of projects including residential, mixed-use, commercial, transportation, redevelopment, as well as educational facilities and office and industrial developments. Mr. Thill is proficient in the use of FHWA's Traffic Noise Prediction Model (TNM), and is familiar with the procedures for preparing highway noise impact studies presented in Caltran's Traffic Noise Analysis Protocol and the Technical Noise Supplement (TENS). Mr. Thill received a BS degree in Environmental Science from the University of California at Santa Barbara.

    Dana M. Lodico, P.E., INCE Bd. Cert., Senior Consultant 

    Dana M. Lodico began her professional acoustics career in 1999, designing small thermo-acoustic refrigeration devices. She currently focuses on transportation noise, environmental noise and vibration, quieter pavement evaluations, architectural acoustics, effects of noise on wildlife, and noise and land use planning. Ms. Lodico has contributed significantly to quiet pavement research efforts within state transportation agencies and the National Cooperative Highway Research Program (NCHRP).  She has conducted a vast range of highway noise studies, as well as hundreds of environmental noise and vibration studies. Her research efforts have included quiet pavement evaluations, innovative sound wall design, meteorological effects on traffic noise, truck noise source localization using acoustic beam forming, thermo-acoustic refrigeration design, and classroom acoustics. She has written and given more than 30 technical papers and presentations, contributed significantly to three AASHTO standards, and co-authored six refereed articles in the Transportation Research Record and Noise Control Engineering Journal. Ms. Lodico holds a B.S. degree in Civil Engineering from the University of Colorado at Boulder and an M.S. degree with a focus on Architectural Acoustics from Rensselaer Polytechnic Institute. She is a Registered Professional Civil Engineer (P.E.) in Colorado and California, and has been INCE Board Certified since 2007. Ms. Lodico was also recently elected as a Director on the Board of INCE-USA.

    Keith H. Pommerenck, Senior Consultant  

    Mr. Pommerenck consults on environmental noise and air quality issues. He has been preparing technical air, noise, energy, and vibration reports since 1987 for inclusion in CEQA and NEPA environmental documents for transportation projects. Mr. Pommerenck served as Caltrans' North Region Soundwall Coordinator by conducting investigations and providing resolutions to noise complaints from the public. He also provides expert assistance on issues related to acoustics, hydroacoustics, and bioacoustics.

    Joshua D. Carman, Consultant  

    Mr. Carman is a consultant with acoustics and air quality experience since 2001 and has participated in the environmental review and monitoring process for many diverse projects in California, Washington, Nevada, and New York. Mr. Carman prepares noise and air quality/greenhouse gas assessments for environmental impact reports (CEQA/NEPA) and technical noise and air studies for transportation projects using federal, state, regional, and local guidelines and methodology. His experience includes complex project- and program-level analyses of mixed-use development, traffic, transit, and transportation, community health risk assessments, vibration, industrial, infrastructure and utilities, telecommunications, hydroacoustics, and construction projects. He received a BA degree in Environmental Studies from the University of California at Santa Cruz and is certified in the use of the FHWA’s Traffic Noise Prediction Model (TNM) and US EPA AERMOD air dispersion model.

    Carrie J. Janello, Consultant  

    Ms. Janello has extensive educational and practical experience in Digital Signal Processing (DSP), Acoustics, Systems Dynamics, and Automotive Noise, Vibrational, and Harshness (NVH), with emphasis in Powertrain Systems. Ms. Janello worked for Ford Motor Company and other automotive suppliers where she successfully developed and implemented test procedures metrics to qualify and quantify growing Automotive NVH concerns; proposed and validated NVH design solutions for current production, new model, year, and concept level vehicles; and conducted sub-system and component tests in controlled environments, full-vehicle tests on-road and at idle, vehicle inspections both during and following final assembly, and subjective evaluations under normal and extreme usage. Ms. Janello graduated with her BS and MS degrees in Mechanical Engineering from the Ohio State University in 2004 and 2005, respectively.

    Casey T. Zaglin, Staff Consultant

    Ms. Zaglin started with Illingworth & Rodkin, Inc. in 2013, and was promoted to an acoustic staff consultant in 2016. Her duties include analyzing noise data, noise modeling, compiling and reviewing noise and air quality assessments, compiling company qualifications for proposals, and general administration and financial office managing. Her recent work includes weekly noise and vibration monitoring for the Summit Reservoir East Bay Municipal Utility District project and assembling I&R's qualification for Caltrans District On-Calls. Ms. Zaglin received her BA from Northeastern University, with a Major in Environmental Studies, and Minors in Environmental Geology, Law, Policy and Society.

    Tanushree Ganguly, Staff Consultant

    Ms. Ganguly started with Illingworth & Rodkin, Inc. in 2016 as an Air Quality staff consultant. Her duties include emission and dispersion modelling, modelling construction health risks and, compiling air quality assessments. Her recent work includes emission modelling for Silicon Valley Clean Water Conveyance Project and the Xilinx Equinix Data Center.

    Chris Peters, Field Technician

    Mr. Peters has been with Illingworth & Rodkin, Inc. since 2006 as a field technician. His duties include conducting onsite noise measurements in California, as well as Montana, Washington, Kansas, North Carolina, Florida, Ohio and Alabama; measurements of pile driving noise on the San Fransisco Bay Bridge; measurements in support of environmental noise impact assessment; and wayside and sound intensity noise measurements in support of tire/pavement acoustical research in Arizona, Iowa and California.

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