Region Environmental Staff

Contacts by Region

Region 1

Jordan Rudel
Regional Planning Manager
(303) 757-9881

Lisa Streisfeld
Regional Environmental Manager
(720) 497-6924

Anna Arustamova
Administrative Assistant
(303) 757-9212

Danny Herrmann
Regional Planning Program Manager
(303) 757-9946

Basil Ryer
Regional NEPA Program Manager
(303) 757-9304

Susie Hagie
Regional Water Quality Program Manager
/ Landscape Architect
(303) 757-9932

Francesca Tordonato
Regional Environmental Program Manager /
Ecologist
(303) 757-9942

Bridget Hart
STIP Planner
(303) 757-9212

Katie Vlajcic
PMO Manager
(303) 757-9965
JoAnn Mattson
Planner
(303) 757-9866 
Ayman Salloum
NEPA / Hazmat Specialist
(303) 757-9826

Veronica McCall
Environmental Project Manager
(303) 757-9926

Cassie Aymami
Environmental Project Manager
(303) 757-9898

Barbara Stocklin-Steely
Historian
(303) 757-9397

Jamie Shapiro
Assistant Historian
(303) 512-4672

Erik Schmude
Biologist / Environmental Project Manager
(303) 757-9947

Abbie Modafferi
I-70 Mountain Corridor NEPA /
Mitigation Specialist
(303) 512-4028

Austin Curry
Environmental Project Manager
(303) 757-9930

Carrie Tremblatt
Bicycle & Pedestrian Coordinator
(303) 512-4151

Miriam Aranoff
Transit Liaison
(303) 757-9965 

Chuck Attardo
I-25 South Corridor Environmental
Project Manager 
(303) 859-9535

Steve Mulqueen
Water Pollution Control Manager
(303) 902-1338

Brian Reiser
Water Pollution Control Manager
(303) 757-9270

Josh Giovannetti
Water Quality Specialist
(303) 757-9925

Brendan Howell
Water Quality Specialist
(303) 757-9933

Maggie John
Environmental Project Manager

Region 2


Region Planning and Environmental Manager
(719) 227-3251

Gabriel Cosyleon
Regional Environmental Manager / Ecologist
office: (719) 227-3244
cell: (719) 251-3596


NEPA / Environmental Project Manager
(719) 227-3267

Geoff Guthrie
Planning Manager
(719) 251-0444

Scott Skinner
Transit Liaison
(719) 288-2620

Lindsey Jaquez
Planner
(719) 546-5457

Craig Clark
Environmental Project Manager / Geologist / Hazardous Materials
(719) 227-3252

Troy Rice
Water Quality Specialist
(719) 227-3260

Stephanie Prochaska
Environmental Project Manager
(719) 227-3258

Summer Slama
Environmental Project Manager / Biologist
(719) 227-3248

Michael Nusen
Project Management Office Rep.
(719) 546-5779

Cameron Olvey
Environmental Project Manager
(719) 227-3255

Region 3

David Cesark
Region Planning and Environmental Manager
(970) 683-6251


Wildlife Specialist
(970) 683-6222

Jason Huddle
Environmental Manager
(970) 986-9251

Paula Durkin
Wetlands Specialist
(970) 683-6255

Leslie Modrick
Water Quality/Environmental Specialist
(970) 683-6254

Mike Konn
Local Agency Program Manager
(970) 683-6253

Mark Rogers
Planning Lead
(970) 683-6252

Jennifer Klaetsch
Landscape Specialist
(970) 683-6223
Carol Storey
Planning and Environmental Assistant /
Hazardous Waste Specialist
(970) 683-6250 

Region 4


Region Planning and Environmental Manager
Office: (970) 350-2167
Cell: (970) 301-3907

Marlo Archuleta
Program Assistant
(970) 350-2310

Vanessa Santistevan
Environmental Manager
Office: (970) 350-2264
Cell: (562) 235-9392

Josie Thomas
Planning Manager
Cell: (970) 888-4006

Jason Marmor
Senior Historian
Office: (970) 350-2153
Cell: (970) 219-9155

Jason Roth
Wetland Biologist / Hazardous Materials Specialist
Office: (970) 350-2171
Cell: (630) 414-0111

Nick Schipanski
Environmental Specialist / Water Pollution Control Manager
Office: (970) 350-2127
Cell: (970) 473-0449

Natalie Shishido
Environmental Justice /
Greenhouse Gas Specialist
(970) 359-2310

Jacqueline Giles
Local Agency Program Manager / Assistant Historian
Office: (970) 350-2263
Cell: (304) 926-4923

Deanna McIntosh
Junior Planner
Cell: (303) 929-8491

Paul Juszczak
Water Quality Specialist
(847) 997-7491 

Region 5

Tony Cady
Region Planning and Environmental Manager
(970) 385-1430

Linda Morschauser
Administrative Assistant III
(970) 385-1452

Tim Funk
Environmental Specialist /
Regional Planner
(970) 385-8367

Mark Lawler
Threatened and Endangered Species Biologist
(970) 385-8371

Matt Bunn
Project Management Office Rep.
(970) 385-8364

Danielle Wilkinson
Water Quality Specialist
(970) 385-1425


Environmental Specialist 
(970) 385-1422

Julie Linn
Environmental Specialist
(970) 903-8747

Aimee Way
Environmental Specialist
(970) 799-5722