The Corona Team

well established and here for you

Meet Our People

Our team is comprised of nationally recognized experts in data science, process engineering, water resources, strategic communications and utility information technology. 

Our Leadership

Chad Seidel, Ph.D., P.E.

Founding Partner & President

Louisville, CO

Dr. Chad Seidel is the President of Corona. He has enjoyed working with the water sector for nearly two decades providing innovative solutions to water quality and treatment challenges across the country.
303-544-2161 X 123

Craig Gorman, P.E.

Partner & Director of Water Quality
and Treatment

Louisville, CO

Craig has over 15 years of experience as a consulting engineer specializing in advanced water treatment and bench and pilot scale testing.
303-544-2161 X 403

Ayhan Ergul

Founding Partner & Vice President

Braintree, MA

Mr. Ergul is the Vice President of Corona. Ayhan brings nearly two decades of experience delivering information technology solutions in an environmental context to clients at municipal, state and federal level.
781-753-6666 X 404

Margaret Kearns

Partner & Director of Water Resources

Braintree, MA

Margaret leads the water resource team, supporting source water protection, software development, decision tools, regulatory analysis & GIS efforts.
781-753-6666 X 414

Jeffrey Rosen

Founding Partner

Braintree, MA

Mr. Rosen, CEO, brings expertise in research, information management, data analysis, and statistics to support environmental decision making and resource management.
781-753-6666 X 654

Chris Corwin, Ph.D., P.E.

Partner & Director of Operations

Louisville, CO

Chris has over 15 years of professional engineering experience in advanced water treatment processes and distribution system water quality.
303-544-2161 X 451

take a closer look

Water Quality & Engineering

Jake Causey, P.E.

Sr. Water Process Engineer

Gonzales, LA

Jake is a professional engineer with more that 15 years of combined experience in the process engineering and permitting and compliance assistance.
781-753-6666 X 117

Amlan Ghosh, Ph.D., P.E.

Sr. Water Process Engineer

Lewisville, TX

Amlan has over 17 years of experience as a consulting engineer specializing in advanced water treatment, distribution system water quality, and pilot scale testing.
781-753-6666 X 421

Brittany Gregory, P.Eng

Water Process Engineer

Louisville, CO

Brittany has a MASc in Civil and Resource Engineering and has experience in water quality analysis, water treatment pilot operation, data analysis and process design.
303-544-2161 X 423

Juliette Kaplan

Water Process Engineer

Louisville, CO

Juliette has a MS in Environmental Engineering from the University of Colorado with experience in treatment process design and water quality management.
303-544-2161 x447

Anthony Kennedy, Ph.D., P.E.

Water Process Engineer

Louisville, CO

Anthony has a Ph.D. in Civil Engineering from the University of Colorado with experience in treatment process design and water quality management.
303-544-2161 x 996

Nathan MacArthur

Water Process Engineer

Louisville, CO

Nathan has a MS in Environmental Engineering from the University of Colorado and has experience in treatment process design and water quality management.
303-731-3649

Libby McKenna

Water Process Engineer

Louisville, CO

Libby has a MS in Civil & Environmental Engineering from the University of Nevada Reno with experience in disinfection by-product management.
303-544-2161 x452

Carleigh Samson, Ph.D., P.E.

Water Process Engineer

South Kingston, RI

Carleigh is a Ph.D. with experience focused on source water quality, water treatment process engineering, DBP formation and statistical modeling.
303-544-2161 X 412

Kara Mihalik

Water Process Engineer

Louisville, CO

Kara has a MS in Civil and Environmental Engineering from Colorado School of Mines, with experience in data analysis and high-pressure membranes.
303-544-2161 x 454

Source Water Management

Jennifer Benjamin

Environmental Scientist

Braintree, MA

Jennifer provides data management and analytical support, training, and outreach materials to support water utility source water protection programs.
781-753-6666 X 419

Emily Smith

Environmental Scientist

Braintree, MA

As a Project Manager and Chemical Engineer, Emily oversees the WaterSuite contaminant database and supports source water, process engineering and research projects.
781-753-6666 X 417

Monica Weisenbach

Data Analyst

Braintree, MA

Monica has an MS in Geography with a focus on the use of geospatial data for environmental mapping and analysis. She supports Corona's advanced GIS and data management projects.
781-753-6666

Geospatial, Data and Information Management

Tod Chee

SanGIS Program Manager

San Diego, CA

Tod is Corona’s program manager for SanGIS, San Diego Geographic Information Source, a joint powers authority between the City and County of San Diego.
858-874-7020

Jon Janezic

Business System and IT Manager

Braintree, MA

Jon is responsible for the design, implementation, and management of all internal networks and WiFi environments for Corona offices nationwide.
781-753-6666 X 431

Jessica Zichichi

Sr. GIS Analyst

Braintree, MA

Jessica has over 17 years of experience using and implementing geographic information systems software for a variety of clients.
781-753-6666 X 422

Program Management and Communications

Shonnie Cline

Management & Communication Strategist

Louisville, CO

Shonnie has over 19 years of experience in utility management specializing in customer communication and stakeholder collaboration.
303-544-2161 X 217

Corona Business Operations

Karen Hada

Project Controls

Louisville, CO

Karen is the Project Controls Coordinator and brings over 15 years of experience in operations management.
303-544-2161 X 444

Annemarie Naughton

AP/AR

Braintree, MA

Annemarie had been with Corona from the very beginning, providing oversight and management of accounting, accounts payable, and accounts receivable.
781-753-6666 X 100

Holly LaPorte

Controller

Louisville, CO


720-560-1760

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