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Our People

Rolf Weberg

NRRI Executive Director
rtweberg@d.umn.edu
(218) 788-2697
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Steve Berger

Chief of Staff
304
sberger@d.umn.edu
(218) 788-2749
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John DuPlissis

Interim Director/Forest and Land
240G
jdupliss@d.umn.edu
(218) 788-2719
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Don Fosnacht

Associate Director Energy Management
dfosnach@d.umn.edu
(218) 788-2682
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George Hudak

Director - Minerals and Metallurgy Research Group
230D
ghudak@d.umn.edu
(218) 788-2739
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Lucinda Johnson Ph.D.

Associate Director and Water Team Lead
430A
ljohnson@d.umn.edu
(218) 788-2651
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Kevin Kangas

Initiative Director - Coleraine Laboratories
kwkangas@d.umn.edu
(218) 667-4218, (218) 788-2635, (218) 341-5933
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Eric Singsaas Ph.D.

Initiative Director - Wood Products and Bioeconomy
esingsaa@d.umn.edu
(218) 788-2648
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Elizabeth Alexson

Research Staff Scientist, Aquatic Scientist
451G
alexs005@d.umn.edu
(218) 788-2763
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Meagan Aliff M.S.

Research Staff Scientist, Aquatic Scientist
451C
aliff002@d.umn.edu
(218) 788-2683
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Basak Anameric Ph.D.

Senior Research Engineer
banameri@d.umn.edu
(218) 667-4206
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Matthew Anthony

Senior Lab Technician
Coleraine
manthony@d.umn.edu
(218) 667-4201
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Matt Aro

Research Program Manager, Forest Products
maro@d.umn.edu
(218) 788-2700
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Rich Axler Ph.D.

Emeritus Limnologist/Aquatic Ecologist
451
raxler@d.umn.edu
(218) 788-2716, (218) 788-2701

Jenna Ballard

Office Support Assistant
Office hours: 8-4:30
jmball@d.umn.edu
(218) 788-2770
Jenna Ballard

Brian Barry

Chemistry and Materials Science Program Leader -- Materials and Bioeconomy
229
barry310@d.umn.edu
(218) 788-2720
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Will Bartsch

Senior Research Scientist, Aquatic Ecologist
wbartsch@d.umn.edu
(218) 788-2669
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Josh Bednar

Senior Research Staff Scientist, Wildlife Ecologist
404
bedn0050@d.umn.edu
(218) 788-2785
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Dick Bellefy

Senior Research Technician
Coleraine
rbellefy@d.umn.edu
(218) 667-4201
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Beth Bernhardt M.S.

Aquatic Scientist
451
bernh080@d.umn.edu
(218) 788-2789
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Annie Bracey

Avian Ecologist
404
brace005@d.umn.edu
(218) 788-2649
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Valerie Brady

Research Associate
493
vbrady@d.umn.edu
(218) 788-2753
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June Breneman

Sr. Communications Specialist/External Affairs Mgr.
357A
jbrenema@d.umn.edu
(218) 788-2600
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Allison Byrd

Environmental Chemist, Water Resources
241
byrd0127@d.umn.edu
(218) 788-2665
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Dr. Meijun Cai

Research Technical Manager, Environmental Engineer
495
mcai@d.umn.edu
(218) 788-2686
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Joe Cannella

Principal Laboratory Technician
jcannell@d.umn.edu
(218) 667-4201
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Patrick Casey

Lab Supervisor
casey202@d.umn.edu
(218) 667-4208
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Julie Christopherson

Executive Office & Administrative Specialist
103
christoj@d.umn.edu
(218) 667-4205
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Chanlan Chun Ph.D.

Senior Research Program Manager, Environmental Engineer
chun0157@d.umn.edu
(218) 788-2613
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Patrick Donahue

Research Program Manager, Building Products
241F
pdonahue@d.umn.edu
(218) 788-2705
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Josh Dumke

Senior Research Scientist
445B
jddumke@d.umn.edu
(218) 788-2634
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Jane Dzuck

Executive Office & Administrative Assistant
375C
jtdzuck@d.umn.edu
(218) 788-2607
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Lisa Estepp

Quality Manager, Senior Research Scientist
479
lestepp@d.umn.edu
(218) 788-2652
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Todd Falardeau

Site Safety Coordinator
Coleraine
tfalarde@d.umn.edu
(218) 667-4237
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Chris Filstrup Ph.D.

Applied Limnologist
423
filstrup@d.umn.edu
(218) 788-2764
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Sam Firoozi

Assistant Scientist in Rapid Prototype Lab
127
firoo003@d.umn.edu
(218) 788-2761

Greg Gargano

Senior Research Technician
Coleraine
ggargano@d.umn.edu
(218) 667-4217
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Megan Gorder

Grants Professional
352
gorde059@d.umn.edu
(218) 788-2701
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Jim Gould

Research Technician
Coleraine
gould099@d.umn.edu
(218) 667-4201
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Shaun Gram

Principal Laboratory Technician
(218) 667-4201
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Alexis Grinde

Wildlife Ecologist
408
agrinde@d.umn.edu
(218) 788-2747
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Jack Grochowski

Research Fellow
jegrocho@d.umn.edu
(218) 667-4238
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Greg Grunwald

IT Developer/Programmer
Mezz
ggrunwal@d.umn.edu
(218) 788-2667
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Tim Hagen

Senior Research Engineer, Agglomeration Specialist
255B
thagen@d.umn.edu
(218) 788-2773
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Kari Hansen

Research Technician, Aquatic Ecologist
486
hans2917@d.umn.edu
(218) 788-2722
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Dave Haugen

Senior Research Technician
(218) 667-4201
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Chris Heim

Information Technology Developer
Mezz
cheim@d.umn.edu
(218) 788-2647
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Robert Hell

Principal Laboratory Technician
445G
rhell@d.umn.edu
(218) 788-2783
Robert Hell

Erik Hendrickson

Organic Chemistry Researcher
451J/Lab470
hendr918@d.umn.edu
(218) 788-2688, (218) 788-2630
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Jerry Henneck

Senior Research Scientist
451
jhenneck@d.umn.edu
(218) 788-2721

Rob Hietala

Research Technician
Coleraine
rhietala@d.umn.edu
(218) 667-4201
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Cally Hunt

Biomass Process Engineer
260
crhunt@d.umn.edu
(218) 788-2772
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Jeff Jackson

Extension Educator
255A
jeffj@umn.edu
(218) 788-2696
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Kevin Jamsa

Senior Research Technician
Coleraine
kljamsa@d.umn.edu
(218) 667-4201
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Kory Jenkins Ph.D.

Senior Research Engineer
131
kjenkins@d.umn.edu
(218) 788-2659
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Julie Johnson

Executive Account Specialist
302
jjohns12@d.umn.edu
(218) 788-2691
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Rodney Johnson

Endowed Taconite Chair
rcjohnso@d.umn.edu
(218) 788-2694
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Scott Johnson

Researcher
241
sjohns01@d.umn.edu
(218) 788-2751
Scott Johnson profile image

Michael Joyce Ph.D.

Wildlife Ecologist
311C
joyc0073@d.umn.edu
(218) 788-2656
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Oleksiy (Alex) Kacharov Ph.D.

Senior Research Scientist, Organic Chemistry
260D
okacharo@d.umn.edu
(218) 788-2708

Kitty Kennedy

Senior Laboratory Technician
kskenned@d.umn.edu
(218) 788-2780
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Jeff Kinkel

Research Project Specialist 2: Project Engineer
101
kinke013@d.umn.edu
(218) 667-4224
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Linda Klint

Finance Manager
380A
lklint@d.umn.edu
(218) 788-2677
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Steve Kolbe

Avian Ecologist
404
kolbe023@d.umn.edu
(218) 788-2758
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Igor Kolomitsyn

Research Associate
223
ikolomit@d.umn.edu
(218) 788-2794
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Oksana Kolomitsyna

Senior Research Scientist, Organic Chemistry
260C
okolomit@d.umn.edu
(218) 788-2727

Katya Kovalenko

Research Associate
451B
ekovalen@d.umn.edu
(218) 788-2733
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Victor Krause

Senior Research Scientist, Materials Testing
255D
vkrause@d.umn.edu
(218) 788-2769, (218) 788-2722
victor krause

Jesse LeMay

Finance Professional 2
380C
jlemay@d.umn.edu
(218) 788-2699
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Paul Mack

Project Engineer - Renewable Energy
mack0279@d.umn.edu
(218) 667-4213
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Craig Maly

Site Building Safety Manager
145
ccmaly@d.umn.edu
(218) 788-2627
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Saleh Mamun Ph.D.

Postdoctoral Associate
411A
salmamun@d.umn.edu
(218) 788-2725
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Tony Masching

Principal Laboratory Technician
(218) 667-4201
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Bernie McMahon

Senior Research Scientist
240B
bmcmahon@d.umn.edu
(218) 788-2702

Matt Mlinar MBA

Portfolio Management Office Manager
mmlinar@d.umn.edu
(218) 667-4222
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Ron Moen

Senior Research Associate and Assoc. Professor
408
rmoen@d.umn.edu
(218) 788-2610
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Stephen Monson Geerts

Senior Research Geologist
239
sgeerts@d.umn.edu
(218) 788-2608
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Julie Mutchler

Chemical Laboratory Supervisor
jmutchle@d.umn.edu
(218) 667-4210
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Neil Nelson

Research Program Manager, Special Projects
240G
nnelson2@d.umn.edu
(218) 788-2602
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Robin Oberton

Finance & Administrative Associate
104
roberton@d.umn.edu
(218) 667-4220
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Lisa Paczynski

Office Support Assistant
Lobby
lpaczyns@d.umn.edu
(218) 788-2694
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Tom Petersen

Technical Manager, Mineral Processing
tpeterse@d.umn.edu
(218) 667-4201

Dean Peterson

Senior Geologist
dmpeters@d.umn.edu
(218) 788-2639
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Sara Post

Senior Staff Scientist/Engineer
sppost@d.umn.edu
(218) 788-2678
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Shashi Rao

Metallurgical Engineer
fshashik@d.umn.edu
(218) 667-4231
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Euan Reavie

Senior Research Associate & Assistant Initiative Director
430B
ereavie@d.umn.edu
(218) 788-2692
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Jane Reed

Web Developer
jmreed@d.umn.edu

Donald Reiser

Lab Services Coordinator
dmreiser@d.umn.edu
(218) 667-4201
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Patrick Schoff

Research Associate
497
pschoff@d.umn.edu
(218) 788-2768
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PhD Brett Spigarelli

Metallurgical Engineer
Coleraine
bspigare@d.umn.edu
(218) 667-4235
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Tiffany Sprague MS

Stormwater & Sustainability Program Coordinator/Educator
451D
tsprague@d.umn.edu
(218) 788-2673
Tiffany Sprague

Ryan Steiner

Researcher 4
404
stei1265@d.umn.edu
(218) 788-2782
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Michael Swanson

Principal Laboratory Technician
(218) 667-4201
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Tammy Thomasson-Ehrhart

Principal Office & Administrative Specialist
Lobby
thomasst@d.umn.edu
(218) 788-2706
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Bridget Ulrich Ph.D.

Aqueous Geochemist
419
ulrichb@d.umn.edu
(218) 788-2748
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Zach Wagner

Researcher Staff Scientist
451
wagn0671@d.umn.edu
(218) 788-2740
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Jeremy Weizel

Marketing Strategist
354
jweizel@d.umn.edu
(218) 788-2728
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Holly Wellard Kelly M.S.

Senior Research Technician, Aquatic Ecologist
445A
hwellard@d.umn.edu
(218) 788-2662, (218) 788-2608

Tim White

Business Development and Intellectual Property Manager
350
twwhite@d.umn.edu
(218) 788-2756
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Chris Wright

Research Associate
421
ckwright@d.umn.edu
(218) 788-2745
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Sergiy Yemets

Research Associate
260G
syemets@d.umn.edu
(218) 788-2766
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Matt Young

Research Staff Engineer, Biomass Specialist
260E
youn1317@d.umn.edu
(218) 788-2606, (218) 788-2622
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Steve Zaitz

Senior Research Technician
Coleraine
szaitz@d.umn.edu
(218) 667-4201
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Larry Zanko

Senior Research Program Manager
207
lzanko@d.umn.edu
(218) 788-2674
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