National Research Program (NRP)

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Contact Us

Most National Research Program staff are situated in three main research centers: Reston, VA; Lakewood/Boulder, CO; and Menlo Park, CA. In addition, several scientists are collocated with federal and university partners at several field sites.

The primary contact personnel for our headquarters and our research centers are listed below, or you can jump to our staff directory.

Headquarters

United States Geological Survey

National Research Center
436 National Center
Reston, VA 20192
Tel. 703.648.5044
Fax 703.648.5070
http://www.usgs.gov/

Office of the Chief of Research and Programs

Jerad Bales, Chief of Research and Programs
432 National Center
Reston, VA, 20192
Tel. 703.648.5044
Fax: 703.648.5002
https://profile.usgs.gov/jdbales
jdbales@usgs.gov

Earl Greene, Acting, Chief of External Research
5522 Research Park Drive
Baltimore, MD 21228
Tel. 443.498.5505
https://profile.usgs.gov/eagreene
eagreene@usgs.gov

Research Centers

National Research Program, Eastern Branch

Pierre Glynn, Branch Chief
432 National Center
Reston, VA, 20192
Tel. 703.648.5823
Fax: 703.648.5832
https://profile.usgs.gov/pglynn
pglynn@usgs.gov

Harry Jenter, Assistant Branch Chief
432 National Center
Reston, VA, 20192
Tel. 703.648.5916
Fax: 703.648.5832
https://profile.usgs.gov/hjenter
hjenter@usgs.gov

National Research Program, Central Branch

Don Campbell, Branch Chief
PO Box 25046, MS 418
Denver Federal Center
Lakewood, CO 80225-0046
Tel. 303.236.5021
Fax: 303.236.5034
https://profile.usgs.gov/dhcampbe
dhcambe@usgs.gov

Peter Griffiths, Assistant Branch Chief
PO Box 25046, MS 418
Denver Federal Center
Lakewood, CO 80225-0046
Tel. 303.236.5021
Fax: 303.236.5034
https://profile.usgs.gov/pggriffi
pggriffi@usgs.gov

National Research Program, Western Branch

Joseph Holomuzki, Branch Chief
Bldg. 15, McKelvey Building
345 Middlefield Road
Menlo Park, CA 94025
Tel. 650.329.4419
Fax 650.329.4463 https://profile.usgs.gov/jholomuzki
jholomuzki@usgs.gov

Cindy Brown, Assistant Branch Chief
Bldg. 15, McKelvey Building
345 Middlefield Road
Menlo Park, CA 94025
Tel. 650.329.4477
Fax: 650.329.4463
https://profile.usgs.gov/clbrown
clbrown@usgs.gov

Staff Directory

Name Phone Email Position Title Location
Aasen Rylander, Diane (Kate) 520-647-2982 katydid@usgs.gov Biological Science Technician Tucson, AZ
Abdollahian, Nina 650-329-4924 nabdollahian@usgs.gov Student Trainee (Hydrology) Menlo Park, CA
Ackerman, Kate 970-226-9433 kackerman@usgs.gov Geologist Woods Hole, MA
Agee, Jennifer 650-329-4434 jlagee@usgs.gov Biologist Menlo Park, CA
Aiken, George 303-541-3036 graiken@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Akob, Denise 703-648-5819 dakob@usgs.gov Microbiologist Reston, VA
Akstin, Katherine 650-329-4546 kakstin@usgs.gov Hydrologist Menlo Park, CA
Alder, Jay 541-737-8928 jalder@usgs.gov Physical Scientist Corvallis, OR
Anderson, Dean 303-236-5691 deander@usgs.gov Research Hydrologist Lakewood, CO
Andrews, Ned 303-541-3002 eandrews@usgs.gov Scientist Emeritus Boulder, CO
Anduaga, Rosa 650-329-4574 randuaga@usgs.gov Biological Science Technician Menlo Park, CA
Antweiler, Ronald 303-541-3047 antweil@usgs.gov Research Hydrologist Boulder, CO
Archfield, Stacey 703-648-5868 sarch@usgs.gov Hydrologist Reston, VA
Arias, Michelle 650-329-4443 mrbeyer@usgs.gov Physical Science Technician Menlo Park, CA
Arthur, Christa 650-329-4515 carthur@usgs.gov Student Trainee (Hydrology) Menlo Park, CA
Baesman, Shaun 650-329-4459 sbaesman@usgs.gov Biologist Menlo Park, CA
Bales, Jerad 703-648-5044 jdbales@usgs.gov Chief Scientist Reston, VA
Ball, Jim 303-236-5021   Scientist Emeritus Lakewood, CO
Barber, Larry 303-541-3039 lbbarber@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Barnes, Talor 303-236-4552 tbbarnes@usgs.gov Student Trainee (Admin Resources) Lakewood, CO
Batson, Jacqulyn 703-648-5472 jbatson@usgs.gov Ecologist Reston, VA
Bekins, Barbara 650-329-4649 babekins@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Bennett, Stacy 650-329-4491 scbennett@usgs.gov Biologist Menlo Park, CA
Benson, Larry 303-541-3005 lbenson@usgs.gov Scientist Emeritus Boulder, CO
Betancourt, Julio 703-648-5840 jlbetanc@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Blum, Alex 303-541-3027 aeblum@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Blum, Jodi 650-329-4425 jsblum@usgs.gov Physical Scientist Menlo Park, CA
Bohlke, John Karl (JK) 703-648-6325 jkbohlke@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Briar, Darius 650-329-4316 dtbriar@usgs.gov Student Trainee (Hydrology) Menlo Park, CA
Brown, Cindy 650-329-4477 clbrown@usgs.gov Assistant Branch Chief, Western Branch Menlo Park, CA
Buck, Bryan 703-648-5950 bbuck@usgs.gov Student Trainee (Engineering) Reston, VA
Bullen, Thomas 650-329-4577 tdbullen@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Burrell, Keith     Student Trainee (Admin Resources) Reston, VA
Busenberg, Ed 703-648-5726 ebusenbe@usgs.gov Scientist Emeritus Reston, VA
Buskirk, Brendan 703-648-5467 bbuskirk@usgs.gov Hydrologist Reston, VA
Butler, Kenna 303-541-3009 kebutler@usgs.gov Chemist Boulder, CO
Cain, Dan 650-329-4478 djcain@usgs.gov Research Biologist Menlo Park, CA
Campbell, Don 303-236-5021 dhcampbe@usgs.gov Branch Chief, Central Branch Lakewood, CO
Campbell, Kate 303-541-3035 kcampbell@usgs.gov Research Chemist Boulder, CO
Carter, James 650-329-4439 jlcarter@usgs.gov Research Hydrologist Menlo Park, CA
Casile, Gerolamo 703-648-5873 jcasile@usgs.gov Hydrologist Reston, VA
Cayan, Dan 858-534-4507 drcayan@usgs.gov Research Oceanographer (Lead Scientist) La Jolla, CA
Charles, Kaylene     Microbiologist Reston, VA
Charlton, Scott 303-236-5676 charlton@usgs.gov Hydrologist Lakewood, CO
Chaudhry, Noor 703-648-5859 nchaudhry@usgs.gov Student Trainee (Biology) Reston, VA
Chiou, Cary 303-236-3967 ctchiou@usgs.gov Scientist Emeritus Lakewood, CO
Chiu, Randall 303-541-3099 rbchiu@usgs.gov Student Trainee (Chemistry) Boulder, CO
Choy, Doug 650-329-4316 dchoy@usgs.gov Physical Science Technician Menlo Park, CA
Cloern, James 650-329-4594 jecloern@usgs.gov Research Physical Scientist (Lead Scientist) Menlo Park, CA
Conaway, Christopher 650-329-4516 cconaway@usgs.gov Chemist Menlo Park, CA
Conley, Travis 650-329-4503 tconley@usgs.gov Student Trainee (Biology) Menlo Park, CA
Conard, William 650-369-2365 wsconard@usgs.gov Chief Engineer (R/V Polaris) Menlo Park, CA
Conko, Kathryn 703-648-5799 kmconko@usgs.gov Chemist Reston, VA
Constanz, James 650-329-4655 jconstan@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Coplen, Ty 703-648-5862 tbcoplen@usgs.gov Research Chemist (Lead Scientist) Reston, VA
Cozzarelli, Isabelle 703-648-5899 icozzare@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Crankshaw, Ilana 650-329-4524 icrankshaw@usgs.gov Student Trainee (Hydrology) Menlo Park, CA
Crauder, Jeffrey 650-329-4678 jcrauder@usgs.gov Biological Science Technician Menlo Park, CA
Crawford, John 303-541-3052 jtcrawford@usgs.gov Student Trainee (Ecology) Madison, WI
Croteau, Marie-Noele 650-329-4424 mcroteau@usgs.gov Research Biologist Menlo Park, CA
Curtis, Gary 650-329-4553 gpcurtis@usgs.gov Research Environmental Engineer (Lead Scientist) Menlo Park, CA
Dade, Sarah 703-648-5859 sdade@usgs.gov Student Trainee (Biology) Reston, VA
Damsma, Joshua 303-541-3019 jdamsma@usgs.gov Information Technology Specialist Boulder, CO
Dettinger, Michael 858-822-1507 mddettin@usgs.gov Research Hydrologist (Lead Scientist) La Jolla, CA
Dornblaser, Mark 303-541-3015 mmdornbl@usgs.gov Chemist Boulder, CO
Doughten, Michael 703-648-6234 doughten@usgs.gov Chemist Reston, VA
Drake, Travis 303-541-3081 tdrake@usgs.gov Student Trainee (Phys Sci) Boulder, CO
Duff, John 650-329-4319 jhduff@usgs.gov Scientist Emeritus Menlo Park, CA
Dunlap, Darren 703-648-5487 ddunlap@usgs.gov Microbiologist Reston, VA
Dunne, Krista 603-675-5230 kadunne@usgs.gov Physical Scientist Princeton, NJ
Duong, Tri 703-648-5829 tduong@usgs.gov Administrative Operations Assistant Reston, VA
Dyke, Jessica 650-329-4435 jldyke@usgs.gov Hydrologist Menlo Park, CA
Eberl, Dennis 303-236-5021   Scientist Emeritus Boulder, CO
Eckart, Barbara 650-329-4430 beckart@usgs.gov Admininstrative Operation Assistant Menlo Park, CA
Eganhouse, Robert 703-648-5879 eganhous@usgs.gov Research Chemist (Lead Scientist) Reston, VA
Emmett, William 303-236-5021   Scientist Emeritus Lakewood, CO
Eng, Kenny 703-648-5843 keng@usgs.gov Research Hydrologist Reston, VA
Essaid, Hedeff 650-329-4581 hiessaid@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Estep, Melanie 303-236-4551 mestep@usgs.gov Budget Analyst Lakewood, CO
Evans, William 650-329-4507 wcevans@usgs.gov Research Chemist (Lead Scientist) Menlo Park, CA
Fend, Steven 650-329-4465 svfend@usgs.gov Hydrologist Menlo Park, CA
Fitzgerald, Kevin 303-541-3076 kcfitzgerald@usgs.gov Student Trainee (Hydrology) Boulder, CO
Fitzpatrick, John 650-329-4530 jfitzpat@usgs.gov Geologist Menlo Park, CA
Fritsch, Joel 650-369-2365 jfritsch@usgs.gov Master (R/V Polaris) Menlo Park, CA
Fronckowiak, Robert 650-329-4440 rfroncko@usgs.gov Information Technology Specialist Menlo Park, CA
Fuller, Chris 650-369-4479 ccfuller@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Gans, Kathleen 650-329-5511 kgans@usgs.gov Physical Scientist Menlo Park, CA
Gelwick, Katrina 650-329-4524 kgelwick@usgs.gov Student Trainee (Hydrology) Menlo Park, CA
Gilmore, Terrell     Student Trainee (Biology) Reston, VA
Glynn, Pierre 703-648-5823 pglynn@usgs.gov Branch Chief, Eastern Branch Reston, VA
Green, Chris 650-329-4728 ctgreen@usgs.gov Research Hydrologist Menlo Park, CA
Greene, Earl 443-498-5505 eagreene@usgs.gov Hydrologist Baltimore, MD
Griffin, Eleanor 303-541-3041 egriffin@usgs.gov Research Hydrologist Boulder, CO
Griffiths, Peter 303-236-5006 pggriffi@usgs.gov Assistant Branch Chief, Central Branch Lakewood, CO
Gunther, Charmaine 303-236-5693 cgunther@usgs.gov Computer Assistant Lakewood, CO
Haase, Karl 703-648-5818 khaase@usgs.gov Research Chemist Reston, VA
Halm, Justin 303-236-6229 jhalm@usgs.gov Student Trainee (Hydrology) Lakewood, CO
Hannon, Janet 703-648-5869 jehannon@usgs.gov Chemist Reston, VA
Harvey, Judson 703-648-5876 jwharvey@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Harvey, Ronald 303-541-3031 rwharvey@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Hay, Lauren 303-236-7279 lhay@usgs.gov Research Hydrologist (Lead Scientist) Lakewood, CO
Healy, Richard 303-236-5392 rwhealy@usgs.gov Research Hydrologist (Lead Scientist) Lakewood, CO
Herkelrath, William 650-329-4625 wnherkel@usgs.gov Scientist Emeritus Menlo Park, CA
Herman-Mercer, Nicole 303-541-3012 nhmercer@usgs.gov Social Scientist Boulder, CO
Hernandez, Maria 650-329-4578 mhernand@usgs.gov Administrative Operations Assistant Menlo Park, CA
Hill, Mary 303-541-3014 mchill@usgs.gov Scientist Emeritus Boulder, CO
Hirsch, Robert 703-648-5888 rhirsch@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Hoeft, Shelley 650-329-4474 sehoeft@usgs.gov Hydrologist Menlo Park, CA
Holomuzki, Joseph 650-329-4419 jholomuzki@usgs.gov Supervisory Biologist Menlo Park, CA
Hornberger, Michelle 650-329-4467 mhornber@usgs.gov Research Physical Scientist Menlo Park, CA
Hostetler, Steven 541-737-8928 swhostet@usgs.gov Research Hydrologist (Lead Scientist) Covallis, OR
Hostettler, Frances 650-329-4584 fdhostet@usgs.gov Scientist Emeritus Menlo Park, CA
Hsieh, Paul 650-329-4580 pahsieh@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Hudson, Dallas 218-547-2880 dchuds@usgs.gov Hydrologic Technician Walker, MN
Huebner, Mark 650-329-4508 mhuebner@usgs.gov Hydrologist Menlo Park, CA
Hull, Holeen 703-648-5854 jhull@usgs.gov Project Assistant Reston, VA
Hupp, Cliff 703-648-5207 crhupp@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Hurwitz, Shaul 650-329-4441 shaulh@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Ingebritsen, Steven 650-329-4422 seingebr@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Jaeschlke, Jeanne 703-648-5872 jaeschke@usgs.gov Physical Scientist Reston, VA
Jarrett, Robert 303-236-6447 rjarrett@usgs.gov Scientist Emeritus Lakewood, CO
Jenter, Harry 703-648-5916 hjenter@usgs.gov Assistant Branch Chief, Eastern Branch Reston, VA
Jolly, Glenn 703-648-5866 gdjolly@usgs.gov Physical Science Technician Reston, VA
Jones, Delva 303-541-3008 djjones@usgs.gov Administrative Operations Assistant Boulder, CO
Kakouros, Evangelos 650-329-5784 kakouros@usgs.gov Hydrologist Menlo Park, CA
Kannappan, Ramakrishnan 650-329-4534 rkannappan@usgs.gov Research Hydrologist Menlo Park, CA
Katrenick-Andre, Monique 303-236-4554 mlkatan@usgs.gov Administrative Operations Assistant Lakewood, CO
Keefe, Steffanie 303-541-3039 shkeefe@usgs.gov Hydrologist Boulder, CO
Kendall, Carol 650-329-4576 ckendall@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Kent, Doug 650-329-4461 dbkent@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Kharaka, Yousif 650-329-4535 ykharaka@usgs.gov Scientist Emeritus Menlo Park, CA
Kieu, Le 650-329-4428 lkieu@usgs.gov Biologist Menlo Park, CA
Kile, Daniel 303-236-5021   Scientist Emeritus Lakewood, CO
Kinzel, Paul 303-278-7941 pjkinzel@usgs.gov Hydrologist Golden, CO
Kipp, Kenneth 303-236-4991 klkipp@usgs.gov Scientist Emeritus Lakewood, CO
Kleckner, Amy 650-329-4622 kleckner@usgs.gov Biologist Menlo Park, CA
Knowles, Noah 650-329-4476 nknowles@usgs.gov Research Hydrologist Menlo Park, CA
Koch, Matthew     Student Trainee (Phys Sci) Boulder, CO
Kohler, Matthias 650-329-4464 mkohler@usgs.gov Hydrologist Menlo Park, CA
Konikow, Lenny 703-648-5878 lkonikow@usgs.gov Scientist Emeritus Reston, VA
Kress, Erica 650-329-5004 ekress@usgs.gov Biologist Menlo Park, CA
Kuwabara, James 650-329-4485 kuwabara@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
LaFrance, Carl 703-648-5892 clafrance@usgs.gov Administrative Operations Assistant Reston, VA
Landa, Edward 703-648-5898 erlanda@usgs.gov Scientist Emeritus Reston, VA
Landwehr, Jurate 703-648-5893 jmlandwe@usgs.gov Scientist Emeritus Reston, VA
Lawrence, Corey 650-329-4961 clawrence@usgs.gov Research Geologist Menlo Park, CA
Leinweber, Pamela 303-541-3006 pleinweb@usgs.gov Secretary Boulder, CO
Lewicki, Jennifer 650-329-4604 jlewicki@usgs.gov Research Geologist Menlo Park, CA
Lorenz, Jennifer 703-648-5859 jlorenz@usgs.gov Biological Science Technician Reston, VA
Lucas, Lisa 650-329-4588 llucas@usgs.gov Research General Engineer (Lead Scientist) Menlo Park, CA
Luoma, Samuel 650-329-4481 snluoma@usgs.gov Scientist Emeritus Menlo Park, CA
Mariner, Robert 650-329-4507 rmariner@usgs.gov Scientist Emeritus Menlo Park, CA
Markstrom, Steven 303-236-3330 markstro@usgs.gov Research Hydrologist Lakewood, CO
Martin, Charles 650-329-4448 camartin@usgs.gov Biologist Menlo Park, CA
Martin, Deborah 303-541-3024 damartin@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Marvin-DiPasquale, Mark 650-329-4442 mmarvin@usgs.gov Research Microbiologist (Lead Scientist) Menlo Park, CA
Meade, Robert 303-236-5009 rhmeade@usgs.gov Scientist Emeritus Lakewood, CO
McBirney, Cathy 303-236-4979 cmrubin@usgs.gov Editorial Assistant Lakewood, CO
McCabe, Gregory 303-236-7278 gmccabe@usgs.gov Research Physical Scientist (Lead Scientist) Lakewood, CO
McCleskey, Blaine 303-541-3071 rbmccles@usgs.gov Chemist Boulder, CO
McDonald, Richard 303-278-7952 srmcd@usgs.gov Hydrologist Golden, CO
McFarlane, Scott 303-236-5692 simcfarl@usgs.gov Information Technology Specialist Lakewood, CO
Metge, David 303-541-3033 dwmetge@usgs.gov Microbiologist Boulder, CO
Michel, Robert 650-329-4547 rlmichel@usgs.gov Scientist Emeritus Menlo Park, CA
Miller, Laurence 650-329-4475 lgmiller@usgs.gov Research Oceanographer Menlo Park, CA
Miller, Nari     Geologist Boulder, CO
Milly, Chris 609-452-6507 cmilly@usgs.gov Research Hydrologist (Lead Scientist) Princeton, NJ
Mixon, Rachel 650-329-4303 rmixon@usgs.gov Physical Science Technician Menlo Park, CA
Moench, Allen 650-329-4582 afmoench@usgs.gov Scientist Emeritus Menlo Park, CA
Moody, John 970-226-9484 jamoody@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Morin, Roger 303-236-5021 rhmorin@usgs.gov Scientist Emeritus Lakewood. CO
Morkner, Paige   pmorkner@usgs.gov Student Trainee (Hydrology) Menlo Park, CA
Mroczkowski, Stanley 703-648-5870 smroczko@usgs.gov Chemist Reston, VA
Murphy, Fred 650-329-4696 fmurphy@usgs.gov Hydrologist Menlo Park, CA
Murphy, Sheila 303-541-3023 sfmurphy@usgs.gov Hydrologist Boulder, CO
Nakayama, Taylor 650-329-4574 tnakayama@usgs.gov Student Trainee (Biology) Menlo Park, CA
Neal, Yolanda 303-236-5021 yneal@usgs.gov Secretary for the Chief Denver, CO
Nelson, Jonathon 303-278-7957 jmn@usgs.gov Research Hydrologist (Lead Scientist) Golden, CO
Neuzil, Christopher 703-648-5880 ceneuzil@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Newman, Alice     Student Trainee (Phys Sci) Menlo Park, CA
Ng, Gene-Hua 650-329-4525 gng@usgs.gov Research Hydrologist Menlo Park, CA
Nimmo, John 650-329-4537 jrnimmo@usgs.gov Research Physicist (Lead Scientist) Menlo Park, CA
Noe, Gregory 703-648-5826 gnoe@usgs.gov Research Ecologist (Lead Scientist) Reston, VA
Nordstrom, Kirk 303-541-3037 dkn@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
O'Mara, Karen 650-329-4416 ksomara@usgs.gov Finance Technician Menlo Park, CA
Oremland, Ron 650-329-4482 roremlan@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Orr, Tade (Chip) 650-815-1507 tworr@usgs.gov Information Technology Specialist Tucson, AZ
Osterkamp, Waite 520-670-6617 ext. 263 wroster@usgs.gov Scientist Emeritus Tucson, AZ
Panepento, Amanda 303-541-3057 apanepento@usgs.gov Student Trainee (Phys Sci) Boulder, CO
Parchaso, Francis 650-329-4586 parchaso@usgs.gov Biologist Menlo Park, CA
Parkhurst, David 303-236-5098 dlpark@usgs.gov Research Hydrologist (Lead Scientist) Lakewood, CO
Parkhurst, Renee 303-236-4988 rparkhur@usgs.gov Hydrologist Lakewood, CO
Peek, Sara 650-329-4515 speek@usgs.gov Biologist Menlo Park, CA
Perkins, Kimberlie 650-329-4551 kperkins@usgs.gov Hydrologist Menlo Park, CA
Plowman, Terry 303-541-3045 tplowman@usgs.gov Chemist Boulder, CO
Pontolillo, James 703-648-4849 jpontli@usgs.gov Physical Scientist Reston, VA
Powell, Katherine 303-236-5694 kpowell@usgs.gov Student Trainee (Hydrology) Lakewood, CO
Presser, Theresa 650-329-4512 tpresser@usgs.gov Research Chemist (Lead Scientist) Menlo Park, CA
Prodigalidad, Arlington 650-329-4407 prodigab@usgs.gov Supervisory Information Technology Specialist Menlo Park, CA
Qu, Haiping 703-648-6338 haipingq@usgs.gov Chemist Reston, VA
Ramirez, Michael 650-329-5474 mramirez@usgs.gov Occupational Safety and Health Specialist Menlo Park, CA
Randolph-Flagg, Noah     Student Trainee (Geology) Menlo Park, CA
Reddy, Michael 303-236-5941 mmreddy@usgs.gov Research Hydrologist (Lead Scientist) Lakewood, CO
Regan, Steven 303-236-5008 rsregan@usgs.gov Hydrologist Lakewood, CO
Repert, Deborah 303-541-3020 darepert@usgs.gov Microbiologist Boulder, CO
Revesz, Kinga 703-648-5865 krevesz@usgs.gov Research Chemist Reston, VA
Ricks, Jensen     Student Trainee (Phys Sci) Boulder, CO
Riggs, Alan 303-236-5182 ariggs@usgs.gov Research Hydrologist Lakewood, CO
Rodenburg, Jasmine     Student Trainee (Phys Sci) Boulder, CO
Rosenberry, Donald 303-236-4990 rosenbr@usgs.gov Research Hydrologist (Lead Scientist) Lakewood, CO
Rostad, Colleen 303-236-3971 cerostad@usgs.gov Research Chemist (Lead Scientist) Lakewood, CO
Roth, David 303-541-3042 daroth@usgs.gov Chemist Boulder, CO
Ruiz, Alexandra 703-648-4526 aruiz@usgs.gov Budget Analyst Reston, VA
Rutherford, David 303-236-3978 dwruther@usgs.gov Research Chemist Lakewood, CO
Rybicki, Nancy 703-648-5728 nrybicki@usgs.gov Research Hydrologist Reston, VA
Salley, Sydney     Ecologist Reston, VA
Sanford, Ward 703-648-5882 wsanford@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Schemel, Laurence 650-329-4436 lschemel@usgs.gov Scientist Emeritus Menlo Park, CA
Schenk, Edward 703-648-4746 eschenk@usgs.gov Ecologist Reston, VA
Scholl, Martha 703-648-5890 mascholl@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Schomody, Melissa 703-648-5833 mlschom@usgs.gov Administrative Officer Reston, VA
Schraga, Tara 650-329-4381 tschraga@usgs.gov Oceanographer Menlo Park, CA
Schulz, Marjorie 650-329-4518 mschulz@usgs.gov Research Hydrologist Menlo Park, CA
Schuster, Paul 303-541-3052 pschuste@usgs.gov Research Hydrologist Boulder, CO
Shapiro, Allen 703-648-5884 ashapiro@usgs.gov Research Hydrologist (Lead Scientist) Reston, VA
Short, Terry 650-329-4324 tmshort@usgs.gov Ecologist Menlo Park, CA
Silva, Steven 650-329-4558 srsilva@usgs.gov Research Hydrologist Menlo Park, CA
Simoes, Francisco 303-278-7956 frsimoes@usgs.gov Research Hydrologist Golden, CO
Simon, Nancy 703-648-5863 nssimon@usgs.gov Research Chemist (Lead Scientist) Reston, VA
Skalak, Katherine 703-648-5435 kskalak@usgs.gov Research Hydrologist Reston, VA
Smith, Richard 303-541-3032 rlsmith@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Sonntag, Ingrid 650-329-4451 isonntag@usgs.gov Administrative Operations Assistant Menlo Park, CA
Stackpoole, Sarah 303-236-0271 sstackpoole@usgs.gov Ecologist Lakewood, CO
Stallard, Bob 303-541-3022 stallard@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Stannard, David 303-236-4983 distanna@usgs.gov Research Hydrologist Lakewood, CO
Stauffer, Natalie 650-329-5387 nstauffer@usgs.gov Student Trainee (Biology) Menlo Park, CA
Stets, Edward 303-541-3048 estets@usgs.gov Ecologist Boulder, CO
Stewart, Robin 650-329-4550 arstewar@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Stoliker, Deborah 650-329-4529 dlstoliker@usgs.gov Hydrologist Menlo Park, CA
Stollenwerk, Kenneth 303-236-5021 kgstolle@usgs.gov Scientist Emeritus Lakewood, CO
Stonestrom, David 650-329-4528 dastones@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Striegl, Robert 303-236-4993 rstriegl@usgs.gov Research Hydrologist (Lead Scientist) Boulder, CO
Sullivan, Patricia     Hydrologist Reston, VA
Sundquist, Eric 508-457-2397 esundqui@usgs.gov Research Hydrologist (Lead Scientist) Woods Hole, MA
Tarbox, Lauren 703-648-5827 ltarbox@usgs.gov Physical Scientist Reston, VA
Taylor,Howard 303-541-3007 hetaylor@usgs.gov Scientist Emeritus Boulder, CO
Tharp, Casey 650-329-4457 ctharp@usgs.gov Administrative Officer Menlo Park, CA
Thomas, Burton 650-329-4514 burt_thomas@usgs.gov Research Hydrologist Menlo Park, CA
Thompson, Janet 650-329-4364 jthompson@usgs.gov Research Hydrologist Menlo Park, CA
Thordsen, James 650-329-4557 jthordsn@usgs.gov Geologist Menlo Park, CA
Thorn, Kevin 303-236-3979 kathorn@usgs.gov Research Chemist (Lead Scientist) Lakewood, CO
Thorne, April 703-648-5856 athorne@usgs.gov Administrative Operations Assistant Reston, VA
Thurman, Mike 303-236-5021   Scientist Emeritus Lakewood, CO
Tiedeman, Claire 650-329-4583 tiedeman@usgs.gov Research Hydrologist Menlo Park, CA
Tindall, James 303-236-5005 jtindall@usgs.gov Research Hydrologist Lakewood, CO
Troutman, Brent 303-236-5038 btroutman@usgs.gov Scientist Emeritus Lakewood, CO
Topping, Brent 650-329-5527 btopping@usgs.gov Hydrologist Menlo Park, CA
Tu, Ying 650-329-4515 ytu@usgs.gov Student Trainee (Hydrology) Menlo Park, CA
Uhle, Brett 303-541-3096 buhle@usgs.gov Physical Scientist Boulder, CO
Underwood, Jennifer 303-541-3026 jcunder@usgs.gov Biologist Boulder, CO
Viger, Roland 303-236-5030 rviger@usgs.gov Geographer Lakewood, CO
Vinci, Alexa     Student Trainee (Biology) Reston, VA
Voeks, Robert     Geologist Reston, VA
Voss, Clifford 650-329-5885 cvoss@usgs.gov Research Hydrologist (Lead Scientist) Menlo Park, CA
Wagner, Brian 650-329-4567 bjwagner@usgs.gov Research Hydrologist Menlo Park, CA
Walvoord, Michelle 303-236-4998 walvoord@usgs.gov Research Hydrologist (Lead Scientist) Lakewood, CO
Warren, Ean 650-329-4554 ewarren@usgs.gov Environmental Engineer Menlo Park, CA
Wayland, Julian 703-648-5847 jwayland@usgs.gov Hydrologist Reston, VA
Weathers, Warren     Hydrologic Technician Lakewood, CO
Webb, Richard 303-236-5025 rmwebb@usgs.gov Research Hydrologist Lakewood, CO
Weeks, Edwin 303-236-4981 epweeks@usgs.gov Scientist Emeritus Lakewood, CO
Wershaw, Robert 303-236-3980 rwershaw@usgs.gov Scientist Emeritus Lakewood, CO
White, Arthur 650-329-4519 afwhite@usgs.gov Scientist Emeritus Menlo Park, CA
Wickland, Kim 303-541-3072 kpwick@usgs.gov Research Ecologist Boulder, CO
Widman, Peggy 703-648-5347 pkwidman@usgs.gov Hydrologist Reston, VA
Williams, Louise 303-541-3025 lanny@usgs.gov Administrative Operations Assistant Boulder, CO
Wilson, Sydney 303-541-3048 sswilson@usgs.gov Student Trainee (Hydrology) Boulder, CO
Windham-Myers, Lisamarie 650-329-4447 lwindham@usgs.gov Biologist Menlo Park, CA
Winston, Richard 703-648-5988 rbwinst@usgs.gov Hydrologist Reston, VA
Young, Megan 650-329-4544 mbyoung@usgs.gov Physical Scientist Menlo Park, CA
Zackschewski, Karen 703-648-5044 kzackschewski@usgs.gov Secretary Reston, VA
Zell, Wesley 434-817-1050 wzell@usgs.gov Student Trainee (Hydrology) Reston, VA