Practice Area Leaders

Doug Barrett, Vice President

Doug Barrett is HMMH's Highway Group Leader. Since joining HMMH in 1986, Mr. Barrett has worked on a wide variety of projects, including traffic noise assessments, aircraft ground noise evaluations and noise barrier design studies. His traffic noise experience ranges from initial measurement programs and environmental documents through system-wide assessments and complex noise barrier final-design studies. He has directed aircraft ground noise studies at locations encompassing everything from commuter airline facilities to major air-carrier hubs. In addition, Mr. Barrett was a key architect in the design and application of HMMH's Virtual Soundscapes.

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Linda Fitch, Vice President

Linda Fitch has overall responsibility for finance and contract management. As a Vice President, she is a core member of the operations management team and an active participant in the company's business and strategic planning. As Secretary of the corporation, Ms. Fitch has corporate record-keeping duties and also acts as the firm's liaison with outside counsel for all legal matters.

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Gene Reindel, Vice President

Gene Reindel manages HMMH's Sacramento, California office. He is responsible for a wide range of noise consulting projects, providing support on aviation-related noise studies and noise measurement programs. Mr. Reindel is a training leader at HMMH and teaches courses in acoustics, sound measurements, and the Integrated Noise Model.

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Lance Meister, Vice President

Lance Meister is the Rail Group Leader, specializing in rail-related noise and vibration projects. Mr. Meister's activities have included field survey measurements, environmental assessments, and computer modeling of noise and vibration propagation. He teaches rail noise courses throughout the country, and is one of the co-authors of the FTA's Transit Noise and Vibration Impact Assessment.

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Diana Khera, Director

Diana Khera manages HMMH's airport and airspace planning practice. She also serves as Assistant Policy Director for the JPDO. Ms. Khera joined HMMH in 2006, bringing more than 10 years of expertise in airfield and airspace operations. She has a strong understanding of the National Airspace System structure, and is a certified pilot.

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Vinnie Khera, Director/Principal Consultant

Vinnie Khera manages HMMH's Washington DC office. Mr. Khera has worked with federal, state, and local governments, as well as community groups to find balanced solutions to issues involving the effects of new capacity enhancing technologies and policies on the environment. Mr. Khera is a member of TRB's Effects of Aviation on the Environment Committee, ACC's Planning Committee and the JPDO Airports as well as Environment Working Groups.

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Philip M. DeVita, Director, Air Quality

Phillip DeVita heads the firm's air quality practice.  Mr. DeVita is an American Meteorological Society Certified Consulting Meteorologist with eighteen years' experience in air quality permitting and modeling, wind turbine evaluation, air emissions characterization, and meteorological monitoring.  His expertise includes atmospheric dispersion modeling to support permitting and siting studies, mobile source analysis, feasibility studies, green house gas emission analyses, and consequence analyses for hazardous chemical releases. 

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Stephen Barrett, Director of Clean Energy

Stephen Barrett comes to HMMH with 15 years of experience in environmental and regulatory consulting and project management. Most recently, Mr. Barrett has been active in renewable and sustainable initiatives, including in the siting, design and financial analyses of wind and solar projects, sustainability planning and LEED analysis, and the permitting of energy, infrastructure, and real estate projects. 

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Dave Towers, PE, Principal Engineer

Dave Towers works on projects in a variety of areas including environmental, industrial, and architectural noise and vibration control. He specializes in rail transportation systems, construction projects and industrial facilities. His activities in these areas have included field survey measurements, acoustical design and specification, environmental assessments, and noise and vibration control for facility construction and operation.

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Hugh Enxing, Product Development Manager

Hugh Enxing leads HMMH Products Group. He provides architecture, design and implementation of flight tracking and noise contouring systems for the airport industry. Mr. Enxing is responsible for implementing software development and quality assurance standards throughout HMMH. His responsibilities also include developing next generation flight tracking and analysis software.

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Corinne Cereceres, Marketing Manager

Corinne Cereceres manages HMMH's company-wide marketing efforts. Ms. Cereceres responsibilities include coordinating proposal efforts and tradeshow events, business development, and strategic marketing.

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