Staff

Rolf Weberg Ph.D.

Executive Director
rtweberg@d.umn.edu
+1 218 788 2697
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Lucinda Johnson Ph.D.

Senior Research Fellow
ljohnson@d.umn.edu
+1 218 788 2651
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
430A
Duluth, MN 55811
United States

Kevin Kangas MBA, MAM, MPMC

Coleraine Site Director, Business Development
kwkangas@d.umn.edu
+1 218 667 4218
+1 218 788 2635
+1 218 341 5933
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Tim White M.S.

Director of Partnership Development
twwhite@d.umn.edu
(218) 788-2756
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
350
Duluth, MN 55811
United States

John DuPlissis M.S.

Head and shoulders image of John DuPlissis
Forest and Land Research Group Leader
jdupliss@d.umn.edu
+1 218 788 2719
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
230F
Duluth, MN 55811
United States

Patrick Schoff Ph.D.

Research Associate
NRRI Duluth
pschoff@d.umn.edu
+1 218 788 2768
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
497
Duluth, MN 55811
United States

George Hudak Ph.D.

Geology and Mineral Opportunity Group Leader
ghudak@d.umn.edu
+1 218 788 2739
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
230D
Duluth, MN 55811
United States

Matt Mlinar MBA

Interim Minerals and Metallurgy Research Group Leader
mmlinar@d.umn.edu
+1 218 667 4222
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Eric Singsaas Ph.D.

Materials and Bioeconomy Research Group Leader
esingsaa@d.umn.edu
+1 218 788 2648
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Will Bartsch M.S.

Will Bartsch headshot
Data Collection and Delivery Research Group Leader
wbartsch@d.umn.edu
+1 218 788 2669
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Valerie Brady Ph.D.

Valerie Brady headshot
Research Associate, Aquatic Ecosystem Ecologist, Interim Water Group Leader
vbrady@d.umn.edu
+1 218 788 2753
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
493
Duluth, MN 55811
United States

Elizabeth Alexson M.S.

Elizabeth Alexson headshot
Research Staff Scientist, Aquatic Scientist
alexs005@d.umn.edu
+1 218 788 2763
Contact Address

NRRI Duluth
5013 Miller Trunk Hwy
451G
Duluth, MN 55811
United States

Meagan Aliff M.S.

Meagan Aliff headshot
Research Staff Scientist, Aquatic Scientist
aliff002@d.umn.edu
+1 218 788 2683
Contact Address

NRRI Duluth
5013 Miller Trunk Hwy
451C
Duluth, MN 55811
United States

Matthew Anthony

Senior Lab Technician
manthony@d.umn.edu
+1 218 667 4201
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Matt Aro M.S.

Matt Aro headshot
Research Program Manager, Forest Products
maro@d.umn.edu
+1 218 788 2700
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Jenna Ballard

Jenna Ballard headshot
Office Support Assistant
jmball@d.umn.edu
+1 218 788 2770
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Brian Barry Ph.D.

Brian Barry headshot
Chemistry and Materials Science Program Leader - Materials and Bioeconomy
barry310@d.umn.edu
+1 218 788 2720
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
229
Duluth, MN 55811
United States

Josh Bednar M.S.

Portrait of a man
Senior Research Staff Scientist, Wildlife Ecologist
bedn0050@d.umn.edu
+1 218 788 2785
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
404
Duluth, MN 55811
United States

Anda Bellamy

Editor, Publications Specialist
NRRI Duluth
abellamy@d.umn.edu
(218) 788-2653
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Beth Bernhardt M.S.

Head and shoulders photo of a women
Aquatic Scientist
bernh080@d.umn.edu
+1 218 788 2789
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
451
Duluth, MN 55811
United States

Annie Bracey Ph.D.

profile photo annie bracey
Avian Ecologist
brace005@d.umn.edu
+1 218 788 2649
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
404
Duluth, MN 55811
United States

June Breneman M.A.

Head and shoulders image of June Breneman
Sr. Communications Specialist/External Affairs Mgr.
jbrenema@d.umn.edu
+1 218 788 2600
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
357A
Duluth, MN 55811
United States

David Burge Ph.D.

David Burge headshot
Phytoplankton Associate Scientist
burge236@d.umn.edu
(218) 788-2620
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Meijun Cai Ph.D.

Head and shoulders image of Meijun Cai
Research Technical Manager, Environmental Engineer
mcai@d.umn.edu
+1 218 788 2686
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
495
Duluth, MN 55811
United States

Joe Cannella

Principal Laboratory Technician
jcannell@d.umn.edu
+1 218 667 4201
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Patrick Casey

Lab Supervisor
NRRI Coleraine
casey202@d.umn.edu
(218) 667-4208
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Lysa Chizmadia Ph.D.

Process Mineralogist
lchizmad@d.umn.edu
(218) 667-4233
Contact Address

NRRI Coleraine
1 Gayley Avenue
Coleraine, MN 55722
United States

Julie Christopherson

Executive Office and Administrative Specialist
NRRI Coleraine
christoj@d.umn.edu
(218) 667-4205

Chan Lan Chun Ph.D.

Head and shoulder picture of a woman.
Senior Research Program Manager, Environmental Engineer
chun0157@d.umn.edu
+1 218 788 2613
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Jean Cranston

Jean Cranston headshot
Environmental Health & Safety Manager
jfcranst@d.umn.edu
+1 218 788 2626
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
350A
Duluth, MN 55811
United States

Jill Crawford-Nichols M.S.

Profile Jill Crawford-Nichols
Technology Development Manager
NRRI Duluth
nicholsj@d.umn.edu

Jane Dzuck

Head and shoulders image of Jane Dzuck
Human Resources Administrative Associate
jtdzuck@d.umn.edu
+1 218 788 2607
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
375C
Duluth, MN 55811
United States

Katarina Edblad

Environmental Microbiologist
NRRI Duluth
kedblad@d.umn.edu
(218) 788-2762

Devin Edge M.S.

Environmental Analytical Chemist
edgex021@d.umn.edu
(218) 788-2738
Contact Address

NRRI Duluth
5013 Miller Trunk Hwy
Duluth, MN 55811
United States

Lisa Estepp M.S.

Head and shoulders image of Lisa Estepp
Quality Manager, Senior Research Scientist
lestepp@d.umn.edu
+1 218 788 2652
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
479
Duluth, MN 55811
United States

Chris Filstrup Ph.D.

Chris Filstrup headshot
Applied Limnologist
filstrup@d.umn.edu
+1 218 788 2764
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
423
Duluth, MN 55811
United States

Sam Firoozi M.S.

Assistant Scientist
firoo003@d.umn.edu
+1 218 788 2761
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
127
Duluth, MN 55811
United States

Greg Gargano

Senior Research Technician
ggargano@d.umn.edu
+1 218 667 4217
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Megan Gorder

Megan Gorder headshot
Grants Professional
gorde059@d.umn.edu
+1 218 788 2701
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
352
Duluth, MN 55811
United States

Alexis Grinde Ph.D.

Head and shoulder picture of a woman.
Wildlife Ecologist
agrinde@d.umn.edu
+1 218 788 2747
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
408
Duluth, MN 55811
United States

Greg Grunwald

head and shoulder picture of man
IT Developer/Programmer
ggrunwal@d.umn.edu
+1 218 788 2667
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Mezz
Duluth, MN 55811
United States

Cindy Hagley M.S.

Headshot of Cindy Hagley
Minnesota Natural Resource Atlas Outreach Specialist
chagley@d.umn.edu
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

David Haugen

Research Project Specialist
+1 218 667 4201
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Chris Heim

head and shoulder picture of man
Information Technology Developer
cheim@d.umn.edu
+1 218 788 2647
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Mezz
Duluth, MN 55811
United States

Robert Hell

Robert Hell
Principal Laboratory Technician
rhell@d.umn.edu
+1 218 788 2783
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
445G
Duluth, MN 55811
United States

Eva Hendrickson

Profile Eva Hendrickson
Researcher Water Quality Technician
NRRI Duluth
hendr786@d.umn.edu
(218)-788-2743

Jerry Henneck

Senior Research Scientist
jhenneck@d.umn.edu
+1 218 788 2721
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
451
Duluth, MN 55811
United States

Madeline Homstad

Senior Laboratory Technician
NRRI Duluth
homst036@d.umn.edu

Cally Hunt

Biomass Process Engineer
crhunt@d.umn.edu
+1 218 788 2772
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
260
Duluth, MN 55811
United States

Kevin Jamsa

Senior Research Technician
kljamsa@d.umn.edu
+1 218 667 4201
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Paul Jeffrey

Research Technician, Aquatic Ecologist
NRRI Duluth
pjeffrey@d.umn.edu

Kory Jenkins Ph.D.

Senior Research Engineer
kjenkins@d.umn.edu
+1 218 788 2659
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
131
Duluth, MN 55811
United States

Kris Johnson

GIS Developer
kristofj@d.umn.edu
218-728-2767
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Matt Johnson

Research Safety Professional
NRRI Duluth
mjoh0001@d.umn.edu
(218) 788-2682

Rodney Johnson Ph.D.

head and shoulder picture of man
Endowed Taconite Chair
rcjohnso@d.umn.edu
+1 218 788 2694
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Scott Johnson

Researcher
sjohns01@d.umn.edu
+1 218 788 2751
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
241
Duluth, MN 55811
United States

Michael Joyce Ph.D.

Head and shoulders photo of a man
Wildlife Ecologist
joyc0073@d.umn.edu
+1 218 788 2656
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
311C
Duluth, MN 55811
United States

Oleksiy (Alex) Kacharov Ph.D.

Senior Research Scientist, Organic Chemistry
okacharo@d.umn.edu
+1 218 788 2708
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
260D
Duluth, MN 55811
United States

Ronald Kelner

Senior Laboratory Technician
kelne027@d.umn.edu
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Jeff Kinkel

Project Engineer
kinke013@d.umn.edu
+1 218 667 4224
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Linda Klint

Head and shoulders photo of a women
Finance Manager
lklint@d.umn.edu
+1 218 788 2677
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
380A
Duluth, MN 55811
United States

Steve Kolbe M.S.

Avian Ecologist
kolbe023@d.umn.edu
+1 218 788 2758
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
404
Duluth, MN 55811
United States

Igor Kolomitsyn Ph.D.

Research Associate
ikolomit@d.umn.edu
+1 218 788 2794
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
223
Duluth, MN 55811
United States

Oksana Kolomitsyna M.S.

Senior Research Scientist, Organic Chemistry
okolomit@d.umn.edu
+1 218 788 2727
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
260C
Duluth, MN 55811
United States

Katya Kovalenko Ph.D.

Head and shoulder picture of a woman.
Research Associate
ekovalen@d.umn.edu
+1 218 788 2733
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
451B
Duluth, MN 55811
United States

Victor Krause

victor krause
Senior Research Scientist, Materials Testing
vkrause@d.umn.edu
+1 218 788 2769
+1 218 788 2722
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
255D
Duluth, MN 55811
United States

Jesse LeMay

Head and shoulders of man
Finance Professional
jlemay@d.umn.edu
+1 218 788 2699
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
380C
Duluth, MN 55811
United States

Paul Mack M.S.

Project Engineer - Renewable Energy
mack0279@d.umn.edu
+1 218 667 4213
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Craig Maly

Site Building Safety Manager
ccmaly@d.umn.edu
+1 218 788 2627
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
145
Duluth, MN 55811
United States

Saleh Mamun Ph.D.

Headshot of Saleh Mamun
Postdoctoral Associate
salmamun@d.umn.edu
+1 218 788 2725
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
411 A
Duluth, MN 55811
United States

Anna Mangan M.S.

Wildlife Ecologist
NRRI Duluth
mang0091@d.umn.edu
(218) 788-2642

Tony Masching

Head and shoulders photo of a man
Principal Laboratory Technician
+1 218 667 4201
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Amber McRae

Environmental Analytical Chemist
NRRI Duluth
mcrae036@d.umn.edu
(218) 788-2714

Tadele Measho Haile Ph.D.

Postdoctoral Associate
meash001@d.umn.edu
(218) 788-2605
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Tyler Mendonsa

Senior Laboratory Technician
mendo099@d.umn.edu
Contact Address

NRRI Coleraine
1 Gayley Avenue
Coleraine, MN 55722
United States

Ron Moen Ph.D.

Senior Research Associate and Assoc. Professor
rmoen@d.umn.edu
+1 218 788 2610
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
408
Duluth, MN 55811
United States

Julie Mutchler

Chemical Laboratory Supervisor
jmutchle@d.umn.edu
+1 218 667 4210
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Stephen Nelson

Researcher 2
nels6797@d.umn.edu
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55812
United States

Kristi Nixon M.S.

GIS Specialist
knixon@d.umn.edu
(218) 788-2645
Contact Address

NRRI Duluth
5013 Miller Trunk Hwy
Duluth, MN 55811
United States

Robin Oberton

Finance & Administrative Associate
roberton@d.umn.edu
+1 218 667 4220
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Lisa Paczynski

Office Support Assistant
lpaczyns@d.umn.edu
+1 218 788 2694
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Lobby
Duluth, MN 55811
United States

Kari Pierce

Research Technician, Aquatic Ecologist
hans2917@d.umn.edu
+1 (218) 788-2757
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
486
Duluth, MN 55811
United States

Sara Post

Senior Staff Scientist/Engineer
sppost@d.umn.edu
+1 218 788 2678
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Shashi Rao M.S.

Metallurgical Engineer
fshashik@d.umn.edu
+1 218 667 4231
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Euan Reavie Ph.D.

Sr. Research Associate
ereavie@d.umn.edu
+1 218 788 2692
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
430B
Duluth, MN 55811
United States

Jane Reed M.S.

Web Developer
jmreed@d.umn.edu
+1 218 213 8905
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Duluth, MN 55811
United States

Donald Reiser

Lab Services Coordinator
dmreiser@d.umn.edu
+1 218 667 4201
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Leah Schleppenbach M.S.

Senior Laboratory Technician
egan0133@d.umn.edu
(218) 788-2780
Contact Address

NRRI Duluth
5013 Miller Trunk Hwy
Duluth, MN 55811
United States

Brett Spigarelli Ph.D.

Head and shoulders photo of a man
Metallurgical Engineer
bspigare@d.umn.edu
+1 218 667 4235
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Tiffany A. Sprague M.S.

Tiffany Sprague
Organizational Development Manager
tsprague@d.umn.edu
+1 218 788 2673
Contact Address

NRRI Duluth
5013 Miller Trunk Hwy
451D
Duluth, MN 55811
United States

Michael Swanson

Principal Laboratory Technician
+1 218 667 4201
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States

Jestos Taguta Ph.D.

Profile Jestos Taguta
Principal R&D Engineer - Mineral Processing and Metallurgy
NRRI Coleraine
tagut001@d.umn.edu
Contact Address

NRRI Coleraine
1 Gayley Avenue
Coleraine, MN 55722
United States

Joyashish Thakurta Ph.D.

Profile Thakura Joyashish
Economic Geologist
thakurta@d.umn.edu
(218) 788-2609
Contact Address

NRRI Duluth
5013 Miller Trunk Hwy
Duluth, MN 55811
United States

Tammy Thomasson-Ehrhart

Principal Office & Administrative Specialist
thomasst@d.umn.edu
+1 218 788 2706
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
Lobby
Duluth, MN 55811
United States

Sunil Tripathy Ph.D.

Profile Sunil Tripathy
Senior Research Scientist
NRRI Coleraine
sunil@d.umn.edu
(218) 667-4236
Contact Address

NRRI Coleraine
1 Gayley Avenue
Coleraine, MN 55722
United States

Bridget Ulrich Ph.D.

Aqueous Geochemist
ulrichb@d.umn.edu
+1 218 788 2748
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
419
Duluth, MN 55811
United States

Zach Wagner M.S.

Head and shoulders photo of a man
Researcher Staff Scientist
wagn0671@d.umn.edu
+1 218 788 2740
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
451
Duluth, MN 55811
United States

Jeremy Weizel

Marketing Strategist
jweizel@d.umn.edu
+1 218 788 2728
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
354
Duluth, MN 55811
United States

Holly Wellard Kelly M.S.

Senior Research Technician, Aquatic Ecologist
hwellard@d.umn.edu
+1 218 788 2662
+1 218 788 2608
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
445A
Duluth, MN 55811
United States

Lonnie Wodarz

Profile Lonnie Wodarz
Finance/Grant Support
NRRI Coleraine
wodar015@d.umn.edu
(218) 667-4234

Chris Wright Ph.D.

Research Associate
ckwright@d.umn.edu
+1 218 788 2745
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
421
Duluth, MN 55811
United States

Sergiy Yemets Ph.D.

head and shoulder picture of man
Research Associate
syemets@d.umn.edu
+1 218 788 2766
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
260G
Duluth, MN 55811
United States

Matt Young

Head and shoulders photo of a man
Research Staff Engineer, Biomass Specialist
youn1317@d.umn.edu
+1 218 788 2606
+1 218 788 2622
Contact Address

NRRI Duluth
5013 Miller Trunk Highway
260E
Duluth, MN 55811
United States

Steve Zaitz

Senior Research Technician
szaitz@d.umn.edu
+1 218 667 4201
Contact Address

NRRI Coleraine
1 Gayley Avenue, PO Box 188
Coleraine, MN 55722
United States