HMH – Staff


Erik Haas, Dipl. Ing.,  




(907) 562-8100 or (907) 230-0941

 Erik has more than 30 years of industry and government experience. He previously managed the air quality section for Alyeska Pipeline Service Company and was a founding member of the Alyeska, BP and ARCO Air Quality Peer Group. He was a member on the American Petroleum Institute (API) sub-committee on Air Quality Regulations. He managed the industrial/domestic wastewater program and coordinated the air quality permits and compliance program for the State of Alaska. He worked as an air quality district engineer for the State of Wyoming and as a process engineer for Michelin Tire Co. in France and Germany.

            Erik holds a degree in chemical engineering from the University of Stuttgart, Germany with majors in power plant design and environmental engineering and completed his master thesis at Oregon State University. He was an adjunct instructor for graduate air quality classes at the University of Alaska.


Tom Chapple                                                                                                                                                                                                                                            

Tom Chapple, Senior Advisor

Principal Consultant

Juneau, AK

(907) 440-4776

 Tom joined HMH in 2012 to bring his depth of experience in the air quality and environmental management disciplines to HMH clients. Tom brings senior level expertise in government relations for:

  • insight into policy, history and flexibility features of state law and regulation; and
  • advancing policy changes and regulatory decisions favorable to client operational goals.

Tom served in various engineering, technical and management roles during his 25+ years at Alaska DEC culminating in nine years as the Director of the Air Quality Division. He led ADEC’s Pipeline Corridor Regional Office for the North Slope, TAPS and Valdez oil operations and then managed the statewide oil spill prevention and response program. During his tenure at ADEC he was responsible for leading numerous changes in air quality regulations including major changes in state statutory laws.

With Chevron’s Cook Inlet operations he gained experience in executing internal management tools to track and assure compliance with environmental requirements and by serving as the Alaska lead for implementing an environmental, safety and health management system.

Tom holds a M.S. degree in Environmental Engineering from the University of Southern California and received a B.A. degree in Chemistry from Southern Illinois University.


Donna Celia, MS                                                                                                                                                                                                                               

Donna MS Celia, Environmental Scientist/Project Manager

Air Quality Scientist/Project Manager

 Anchorage, AK

  (808) 255-1661


Joining HMH in 2009 Donna manages a variety of permitting and compliance projects as an Air Quality Staff Scientist. Donna:

  • works dynamically with customers to develop and implement compliance management systems, including integration of rapidly changing Federal and State regulations; and 
  • provides clients with a range of skilled assistance, including regular permitting and compliance duties, on site regulatory guidance and training, and pre-project environmental impact analysis.

She organizes the preparation of major and minor Title I and V permit applications and renewals, as well as annual compliance certifications, semi-annual facility reporting and compliance schedules/calendars. Donna is HMH’s expert on spill prevention, control and countermeasure plans (SPCCs). She has worked in soil and groundwater remediation and has experience with Phase I and II environmental site assessments. Her resume includes several years as an archaeologist in Oregon, Hawaii and Alaska. Donna worked as a survey archaeologist on the Denali Gas Line Project.

            Donna has a Bachelor of Science in Anthropology/Geography from the University of Oregon (2005) and was awarded the International Society of Collegiate Scholars award.


 Larry Taylor, Jr., QEP                                                                                                                                                                                                                    

Senior Advisor, Ambient Monitoring Section

Senior Advisor, Ambient Monitoring

Anchorage/Big Lake, AK 907-538-7707

             Joining HMH in 2002, Larry currently serves as a Senior Advisor for selected monitoring projects. Larry previously coordinated the air quality permitting and monitoring efforts with the Municipality of Anchorage. He was an analytical chemist, process engineer, and then plant foreman at Alaska Pulp Corporation in Sitka for sixteen years. He also owned a chemical laboratory for asbestos microscopy, bacteriology for seafood processors, indoor air quality chemical analyses and urinalyses.

            Larry is a member of the American Chemical Society and past Counselor of the Alaska Section. He has BS degrees in Chemistry and Biology from University of Alaska, Fairbanks, and a BA in Sociology from Haverford College, Pennsylvania. He is a QEP (Qualified Environmental Professional of IPEP) since 1996.


 Abel Vargas , Environmental Monitoring Technician (Juneau, AK)

Abel spent 29 years working in the field of ambient air monitoring for the Alaska Department of Environmental Conservation. This includes 20 years as an Electronic Tech II and 9 years as an Environmental Specialist III. He is a graduate of the Control Data Institute and of the Sperry Univac Main Frame Computer training program

 Abel has long-time experience with all aspects of ambient air field monitoring operations: This includes site selection, site preparation, equipment selection, equipment installation and equipment calibration;

  • Data collection, formatting, analysis, storage and submittal: This includes setting up and installing communications networking between field analyzers and local database systems. Review data for anomalies, errors, and validity. Prepare data for submission to appropriate data base(s) (as one example EPA AQS data base);
  • Training other field operators: This includes all facets related to equipment operations, certifications, and EPA CFR method requirements. This also includes data collection and analysis;
  • Auditing: This includes audits of EPA priority pollutants, meteorological monitors (WS/WD, temperature, and delta temperature).     


Karen Haas                                                                                                                                                                                                                       Karen3-1


Business Administrator(907) 230-0941         

Anchorage. AK/Tucson, AZ

  •   Karen is HMH’s business administrator and oversees all aspects of business development including staff training, marketing, advertising, state and federal contracting, payroll, cost/tax accounting and financial planning. She oversees all quality assurance aspects with technical report preparation and documentation, standard operating procedures, business control documentation and manuals. Ms. Haas has a Bachelor of Arts in German from the University of Oregon and previously managed a small business in Alaska.


Philip Austin                                                                                                                                                                                                         

Philip Austin, Air Quality Analyst/Meteorologist

Senior Air Quality Analyst/Meteorologist (Part-Time/Contract)

(907) 562-8100

Philip Austin is a Senior Air Quality Analyst/Meteorologist and expert dispersion modeler. He offers:

  • modeling demonstrations, analysis of ambient air quality impacts, related meteorological data and statistical analyses thereof; and.
  • Mathematical optimization of facility operations given regulatory constraints.

Fluent in Alaska and federal regulations for PSD, minor source and Title V permitting and compliance requirements.  Phil was an adjunct instructor in the University of Alaska Anchorage’s faculty of Mathematics and has worked as a mathematics writer for an educational publishing company

Phil has Bachelor of Science degrees in Atmospheric Science from the University of British Columbia and in Mathematics from the University of Oregon.