1450 N. McDowell Blvd., Suite 200
Petaluma, California 94954
General Contact
+1 707-665-9900
© 2020 Sonoma Technology, Inc.
Alan C. Chan
Vice President / Manager of AirNow and International Programs
Alexander Bernal
Environmental Field Technician
Angela Del Ponte
Executive Assistant
Angela L. Ekstrand
Software Engineer
Anondo D. Mukherjee PhD
Air Quality Scientist
Anthony M. Cavallaro
Software Architect
Arthur (Sky) Steiner
Environmental Field Technician
Barbara A. Lee
Director of Community Air Quality and Climate Programs
Barbara A. Austin
Director
Bryan M. Penfold
Manager, Data Analysis Group / GIS Coordinator
Bryant S. West
Technical Editor / Conference Coordinator
Cathy E. Anthony
Director of Human Resources / Manager, Administration, Facilities, and Health & Safety Group
Charles A. Callebaut
Senior Accountant
Charles R. Scarborough
Air Quality Data Scientist
Chelsie Winborg
Environmental Field Technician
Christian T. Havranek
Software Engineer
Christopher L. Adams
Environmental Field Technician
Clinton P. MacDonald
President / Chief Scientist
Crystal D. McClure PhD
Atmospheric Scientist
Dana L. Coe
Litigation Services Program Lead
David J. Miller PhD
Geospatial Data Scientist
Douglas S. Eisinger PhD
Senior Vice President / Chief Scientist, Transportation Policy & Planning
Dylan L. Marcus
Software Engineer
Frederick W. Lurmann
Chairman / Manager of Exposure Assessment Studies
Garnet B. Erdakos PhD
Atmospheric Scientist / Project Manager
Gonzalo Parajon
Manager, Software Engineering Group
Hilary R. Hafner
Chief Operating Officer
James A. Cooper
Systems Engineer
Jana L. Schwartz
Department Manager, Corporate Operations
Jane M. Harre
Vice President / Manager, Finance, Accounting, and Contracts Group / Controller
Jeff A. Houk
Transportation / Air Quality Analyst and Emissions Modeler
Jeff J. Beamish
Meteorologist
Jennifer L. DeWinter
Atmospheric Scientist / Project Manager, Data Systems
Joey (Jiaoyan) Huang PhD
Air Quality Scientist
Josette E. Marrero PhD
Manager, SoCal Field Group
Justin M. Guarino
Software Engineer
Kenneth J. Craig
Manager, Atmospheric and Emissions Modeling Group / Senior Atmospheric Scientist
Kevin M. Smith
Air Quality Field Technician / Project Manager
Lisa M. Churchman
Software Engineer
Lyle R. Chinkin
Chief Scientist / Chief Executive Officer
Lynn M. Alley
Atmospheric Scientist
Maggie T. Gelosi
Contract Administrator
Melissa R. Chaveste
Atmospheric Scientist
Michael C. McCarthy PhD
Senior Atmospheric Scientist / Project Manager
Michelle L. Stewart
Accounts Payable Specialist
Nathan R. Pavlovic
Lead Geospatial Data Scientist / Project Manager
Ningxin Wang PhD
Air Quality Data Scientist
Noushin Khalilifar
Information Technology Administrator
Olivia S. Ryder PhD
Atmospheric Scientist
Patrick H. Zahn
Forecasting Program Lead / Project Manager
Paul T. Roberts PhD
Chief Scientific Officer / Corporate Quality Assurance Officer / President Emeritus
Paul E. Benson PE
Senior Air Quality Scientist, Transportation Policy and Planning
Rick F. Sustek
Operations Engineer
Rodrigo A. Castillo
Software Engineer
Ruth Waltrip
Administrative Specialist
Ryan C. Moffet PhD
Manager, NorCal Field Group
Samantha J Kramer PhD
Air Quality Data Scientist
Shih Ying (Changsy) Chang PhD
Air Quality Scientist
ShihMing Huang
Group Manager, Data Analysis
Steve T. Irwin
Meteorologist
Steven G. Brown PhD
Vice President / Manager, Data Science Department / Senior Atmospheric Scientist
Steven R. Schill PhD
Air Quality Scientist
Tami L. Lavezzo
Vice President / Senior Scientist / Senior Project Manager
Taylor J. Jones
Environmental Field Technician
Tim E. Doughty
Software Engineer
Tim L. McCarthy
Vice President / Manager, Software Engineering and Information Technology Department
Tim R. Blakey
UX/Graphic Designer
Will S McCoy
Director of Business Strategy / Program Lead for Education and Outreach