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There are many ways to reach the Water Resources Mission Area (WMA). Reach out to the main contacts below, or use the Employee Directory to find an individual or email group. For a list of WMA key management officials, click below.

WMA Key Officials

Locations

Social Media

Contacts

William Werkheiser

Associate Director
Water Resources Mission Area
Phone
703-648-7412

Joshua Joseph, Jr., PhD

Deputy Associate Director
Water Resources Mission Area
Phone
(571) 591-4573

Meredith Richardson Martin, PhD

Chief Science Advisor
Water Resources Mission Area
Phone
(571) 581-7589

Nathaniel (Nate) Booth

Chief Operating Officer (acting)
Water Resources Mission Area
Phone
608-239-1108

Employee Directory

Job Title
Name
Email
Phone
Biologist Jennifer L Agee jlagee@usgs.gov 303-236-3475
Decision Scientist, Social and Economic Drivers Program Manager Katrina Alger kalger@usgs.gov
Database Administrator Bryan A. Anderson baanderson@usgs.gov 303-236-3723
Supervisory Hydrologic Technician Sonny E Anderson seanders@usgs.gov 407-803-3560
EDGE Ecologist and Data Scientist Alison Appling, PhD aappling@usgs.gov
Science Communicator Althea A. Archer, PhD aaarcher@usgs.gov
Research Hydrologist Stacey A Archfield sarch@usgs.gov 703-648-5868
Data Scientist/Data Visualization Specialist Elmera Azadpour eazadpour@usgs.gov
Biologist Shaun Baesman sbaesman@usgs.gov 650-329-4459
Research Geologist Larry B Barber, II lbbarber@usgs.gov 303-541-3039
Financial Specialist Talor B Barnes tbbarnes@usgs.gov 303-236-4552
Deputy Director Todd E Baumann tbaumann@usgs.gov 225-436-2715
Research Hydrologist Barbara A. Bekins, PhD babekins@usgs.gov 650-329-4691
Physical Science Technician Caitlyn M Benson cmbenson@usgs.gov 303-236-3966
Hydrologic Technician Daniel K Blankenship dblanken@usgs.gov 850-553-3665
Biologist Paul A Bliznik pbliznik@usgs.gov 303-541-3026
Chief (Acting), Geo-Intelligence Branch David L Blodgett dblodgett@usgs.gov 608-821-3899
Chief, Analysis and Prediction Branch Joel Blomquist jdblomqu@usgs.gov
Hydrologist for the Geospatial Intelligence Branch Andrew R Bock abock@usgs.gov 303-236-6875
Emeritus Scientist, Earth Systems Processes Division John Karl Bohlke, PhD jkbohlke@usgs.gov 703-648-6325
Chief Operating Officer (acting) Nathaniel (Nate) Booth nlbooth@usgs.gov 608-239-1108
Chemist Jonathan D Boothe jboothe@usgs.gov 303-236-1461
Hydrologist and Data Management Coordinator, Office of Quality Assurance Angela K Brennan akbrennan@usgs.gov (571) 591-2777
Research Hydrologist Martin A. Briggs mbriggs@usgs.gov
Research Oceanographer Jenna Brown, PhD jenniferbrown@usgs.gov 727-502-8000
Operations Research Analyst Donald Brown brownd@usgs.gov 970-226-9155
Hydrologic Technician Colby W Brown colbybrown@usgs.gov 971-666-0643
Physical Scientist Jennifer L Bruce jlbruce@usgs.gov 608-821-3906
Usability Specialist Rachel Volentine Bryan rbryan@usgs.gov
Engineering Technician Bryan D Buck bbuck@usgs.gov 703-648-5874
Computer Engineer Mary S Bucknell mbucknell@usgs.gov 608-821-3920
Hydrologic Instrumentation Research and Operations Chief Derek D. Bussan dbussan@usgs.gov 205-347-4217
Hydrologic Technician David D. Byers dbyers@usgs.gov
Biologist Daniel Cain djcain@usgs.gov 650-329-4478
Associate Center Director for Hydrologic Studies Daniel L Calhoun dcalhoun@usgs.gov 678-924-6629
Manager, Ecological Flows Program Daren M Carlisle, Ph.D. dcarlisle@usgs.gov 785-832-3524
Science Communicator Amanda Carr ancarr@usgs.gov
Physical Scientist Matthew J Cashman, Ph.D. mcashman@usgs.gov 443-498-5511
IT Specialist Nicholas Westley Castaneda ncastaneda@usgs.gov
IT Specialist Mike Caucutt mcaucutt@usgs.gov 608-781-6345
Science Advisor Todd Chaudhry, Ph.D. tchaudhry@usgs.gov
Physical Scientist Se Jong Cho, PhD scho@usgs.gov
Hydrologist Jay Choi jchoi@usgs.gov 703-648-5418
Physical Science Technician Doug Choy dchoy@usgs.gov 650-329-4316
Deputy Program Coordinator Brian R Clark brclark@usgs.gov 501-352-1864
Hydrologic Technician Michael Clark maclark@usgs.gov 301-687-0919
Ext: 11
Administrative Specialist Sandra L Cole scole@usgs.gov 954-377-5904
Research Chemist Christopher Conaway cconaway@usgs.gov 650-329-4516
Physical Science Technician Dylan Cone dcone@usgs.gov 303-236-3276
Chief, Data Science Branch Gericke Cook gcook@usgs.gov
Director Tyler B. Coplen, Ph.D. tbcoplen@usgs.gov 703-648-5862
Hydrologist Hayley Corson-Dosch hcorson-dosch@usgs.gov
Analytical Chemist Janette M Cottrell jcottrell@usgs.gov 303-236-3945
Information Technology Specialist David L Coyle dlcoyle@usgs.gov 703-648-5232
HIF Engineering/Electronics Technician and Instructor Ray Elliott "Elliott" Crawford, III recrawford@usgs.gov (228) 688-1676
Director, Office of Planning and Programming Dianna Crilley dcrilley@usgs.gov 619-507-9961
Staff Scientist Jennifer M Croskrey jcroskrey@usgs.gov 303-236-3172
Research Biologist Marie Noele Croteau, Ph.D. mcroteau@usgs.gov 650-329-4424
Research Hydrogeologist Kevin John Cunningham, PhD kcunning@usgs.gov 954-377-5913
Scientist Emeritus Janet A Cushing jcushing@usgs.gov 571-524-4636
Hydrologist Christopher A Custer, Ph.D. cacuster@usgs.gov 804-404-9094
Ext: 115
Supervisory Hydrologic Technician Timothy L Dalrymple tldalrym@usgs.gov 787-749-7414
Technical Review Specialist Anna Deetz-Boetsma aboetsma@usgs.gov 609-771-3988
Scientist Emeritus Geoffrey Delin delin@usgs.gov 303-236-1471
Physical Scientist Noel A. Deyette ndeyette@usgs.gov 518-285-5681
National Sediment Specialist and Federal Interagency Sedimentation Project Chief Paul Diaz, Jr. pdiaz@usgs.gov 971-337-5012
Hydrologist Jesse Dickinson, PhD jdickins@usgs.gov 520-670-3323
Associate Director for Data Mark R Dickman mdickman@usgs.gov 916-666-9951
Data Management Unit Chief Corin M Downs cdowns@usgs.gov 813-224-5062
Physical Scientist Oronde Drakes odrakes@usgs.gov
Information Technology Specialist Joel M Dudley jmdudley@usgs.gov 207-626-6609
Research Hydrologist Brian A. Ebel bebel@usgs.gov 303-236-3977
Chief, Hydrologic Remote Sensing Branch Jack Eggleston jegglest@usgs.gov 703-459-3903
Information Technology Specialist (Security) Carolyn M Emmanuelli mccullou@usgs.gov 608-821-3859
Hydrologist Ken Eng, PhD keng@usgs.gov 703-648-5843
Geographer Frank L Engel, Ph.D. fengel@usgs.gov 210-691-9213
Information Technology Specialist Eric J Everman eeverman@usgs.gov 651-269-4735
Physical Scientist Joseph K Fackrell jfackrell@usgs.gov 650-329-4515
Information Technology Specialist Benjamin R Feinstein bfeinstein@usgs.gov 608-821-3815
Engineering Technician Veronica Ferman vferman@usgs.gov 228-688-1546
Hydrologist Irene J Fisher ifisher@usgs.gov 631-736-0783
Ext: 117
Public Affairs Specialist David N Fisher dfisher@usgs.gov
Physical Scientist Benjamin N. Fisher bfisher@usgs.gov 603-226-7800
Chief (acting), Hydrologic Networks Branch Laura E Flight lflight@usgs.gov 207-626-6629
Hydrologist Sydney S Foks sfoks@usgs.gov 303-236-5022
Master (Vessel David H. Peterson) Joel T Fritsch jfritsch@usgs.gov 650-400-2861
Information Technology Specialist Janell Fry janell_fry@usgs.gov 703-474-7936
Director, Observing Systems Division Janice Fulford jfulford@usgs.gov 228-342-3652
Hydrologist Christopher Fuller ccfuller@usgs.gov 650-329-4479
Cooperative Matching Funds Program Manager Joel M Galloway jgallowa@usgs.gov 701-425-4775
Scientist Emeritus Devin Lynn Galloway dlgallow@usgs.gov 916-801-2040
Chemist Durga Ghosh dghosh@usgs.gov 410-267-5750
National Proposal Repository Coordinator, Office of Quality Assurance Patricia Ging pbging@usgs.gov 512-927-3581
Hydrologist Phillip Goodling pgoodling@usgs.gov 443-800-2113
Hydrologist Debbie Warner Gordon, PG dwarner@usgs.gov 678-924-6647
Machine Learning Specialist Galen Gorski ggorski@usgs.gov
Research Chemist James L Gray, PhD jlgray@usgs.gov 303-236-3776
Research Hydrologist Christopher T Green, Ph.D. ctgreen@usgs.gov 650-439-2728
Information Technology Specialist Charmaine E Green cegreen@usgs.gov 954-377-5909
Associate Center Director for Data Kevin J Grimsley, P.E. kjgrims@usgs.gov 813-224-5064
Hydrologist Lance R Gruhn lgruhn@usgs.gov 319-333-4579
Civil Engineer Julieta Gómez-Fragoso jgomez-fragoso@usgs.gov 787-749-7479
Research Chemist Karl B. Haase, Ph.D. khaase@usgs.gov 703-648-5818
Program Analyst Rita E Haddad-Khalil rhaddad@usgs.gov 703-648-4611
CFWSC Fort Myers Office, Data Chief Sara Hammermeister shammer@usgs.gov 239-850-0808
Machine Learning Specialist Scott Hamshaw, Ph.D., P.E. shamshaw@usgs.gov
Research Hydrologist Merritt Harlan, PhD mharlan@usgs.gov
IT specialist Michael R Haschke mhaschke@usgs.gov 303-236-3735
Hydrologist Jory S Hecht, PhD jhecht@usgs.gov 508-490-5005
Hydrologist Heather Heckathorn haheck@usgs.gov 609-273-0306
Chemist Dawn M Hemmerle dhemmerle@usgs.gov 303-236-3475
Chief Projects Manager Glenn Henz ghenz@usgs.gov 916-278-3101
Hydrologist Liv Herdman lherdman@usgs.gov 518-285-5600
Ext: 654
Scientist Emeritus William N Herkelrath wnherkel@usgs.gov 650-329-4625
Research Social Scientist, Southwest CASC Nicole M Herman-Mercer nhmercer@usgs.gov 303-236-5031
Director, Laboratory and Analytical Services Division Selene Hernandez Ruiz, PhD shernandezruiz@usgs.gov
Administrative Operations Assistant Ashlie F Hill ahill@usgs.gov 813-498-5058
Information Technology Specialist Megan K Hines mhines@usgs.gov 608-821-3917
Data Scientist Elise Hinman ehinman@usgs.gov
Research Hydrologist Emeritus Robert M Hirsch rhirsch@usgs.gov 703-648-5888
Hydrologist Timothy O Hodson, Ph.D. thodson@usgs.gov 217-328-9733
Biologist Robert W Hood rwhood@usgs.gov 303-236-1875
Physical Scientist Candice Hopkins chopkins@usgs.gov 208-387-1320
Research Physical Scientist Michelle Hornberger, PhD mhornber@usgs.gov ​650-439-2858
Physical Scientist, Enterprise Technology Office Stephen Patrick Huddleston shuddle@usgs.gov 518-285-5600
IT Specialist Michael Ierardi mierardi@usgs.gov 703-648-5649
Research Chemist Jeramy R Jasmann, Ph.D. jjasmann@usgs.gov 303-541-3007
Information Technology Specialist Yvonne S Jenkins ygsaunde@usgs.gov 703-648-5589
HIF: Engineering Technician Damon A Jones, Sr. dajones@usgs.gov 228-688-7176
Research Geographer John W. Jones jwjones@usgs.gov 703-994-3224
Physical Scientist - Product Owner Amber S. Jones asjones@usgs.gov
Office of Quality Assurance, Data Management Specialist Katherine (Kate) Jones kkjones@usgs.gov 918-345-3601
Deputy Associate Director Joshua Joseph, Jr., PhD jajoseph@usgs.gov (571) 591-4573
Chemist Valerie S Jugert vjugert@usgs.gov 303-236-3161
Hydrologist Evangelos Kakouros kakouros@usgs.gov 650-329-5784
Information Techology Specialist Joseph P Kalfsbeek kalfsbek@usgs.gov
Physical Scientist Skylar (Jace) Kaminski skaminski@usgs.gov 402 328-4175
Chemist Christopher J Kanagy ckanagy@usgs.gov 303-236-3262
Chemist Leslie K Kanagy lkkanagy@usgs.gov 303-236-3243
Geographer Chintamani Kandel ckandel@usgs.gov 919-961-5735
Physical Scientist / Hydrogeologist Josh Kasper jkasper@usgs.gov 4434985500
Physical Scientist Jennifer E Katz jkatz@usgs.gov 631-736-0783
Ext: 145
Software Developer Colin Keating ckeating@usgs.gov (916) 278-3000
Chief, Hydrologic Impacts Branch Jeni Keisman, Ph.D. jkeisman@usgs.gov
Research Hydrologist Douglas Kent dbkent@usgs.gov 650-329-4461
Computer Scientist Daniel Kester dekester@usgs.gov 608-821-3854
Scientist Emeritus Yousif K Kharaka ykharaka@usgs.gov 650-329-4535
Supervisory Research Hydrologist Tyler King tvking@usgs.gov 208-387-1352
Hydrologist (Geol) Sandra L Kinnaman kinnaman@usgs.gov 813-224-5079
Hydrologist Paul Kinzel pjkinzel@usgs.gov 303-278-7941
Streamflow Technologies and Hydroacoustic Lead Travis M. Knight tknight@usgs.gov
Supply Technician Christopher B Knoll cknoll@usgs.gov 303-236-2000
Research Hydrologist Noah Knowles nknowles@usgs.gov 650-329-4476
Data Scientist (Biologist) Lauren Koenig lkoenigsnyder@usgs.gov
Physical Scientist Jeffrey Kwang jkwang@usgs.gov
Chief, Modeling Support and Coordination Branch Jacob LaFontaine jlafonta@usgs.gov 678-924-6664
Lower Mississippi-Gulf WSC - Supervisory Hydrologist Darrell S Lambeth dlambeth@usgs.gov 205-348-0950
Senior Advisor for Water/International John W Lane, Jr., Ph.D. jwlane@usgs.gov 860-487-7402
Center Director Casey J Lee cjlee@usgs.gov 785-760-1958
Research Hydrologist Carl J Legleiter cjl@usgs.gov
Physical Scientist Leah E Kammel Lenoch llenoch@usgs.gov 608-212-7890
Director, Integrated Modeling and Prediction Division David Lesmes dlesmes@usgs.gov 703-648-4558
Hydrologist Bruce Lindsey blindsey@usgs.gov 717-730-6964
Research Hydrologist Benjamin S. Linhoff, Ph.D. blinhoff@usgs.gov
Chief, Infrastructure and Services Branch Jason Livingston jtlivingston@usgs.gov
Biologist Jennifer M Lorenz jlorenz@usgs.gov 703-648-5894
Hydrologist Robert R. Lotspeich rlotspei@usgs.gov
Budget Analyst Jamie Lowndes jlowndes@usgs.gov 609-771-3905
Research General Engineer Lisa V. Lucas llucas@usgs.gov
maintenance mechanic Andrew J Lucero alucero@usgs.gov 303-236-2000
Supervisory Physical Scientist Kris D Lund kdlund@usgs.gov 608-821-3860
​Biologist (Data Scientist)​ Mike Mahoney, PhD mjmahoney@usgs.gov
Supervisory Hydrologic Technician Brenda Majedi blfeit@usgs.gov 443-498-5527
Program Analyst Christine M Marsh cmarsh@usgs.gov 608-821-3840
Hydrologist Cameron Marshall marshall@usgs.gov 253-552-1618
Scientist Emeritus Deborah Martin damartin@usgs.gov 303-541-3024
Chief Science Advisor Meredith Richardson Martin, PhD mrmartin@usgs.gov (571) 581-7589
Physical Science Technician RoseAnn Martin ramartin@usgs.gov 303-236-1874
Data Scientist Anthony Martinez ajmartinez@usgs.gov
Information Technology Specialist Kimberley L Martz kimmartz@usgs.gov 703-648-5497
Research Microbiologist Mark Marvin-DiPasquale, PhD mmarvin@usgs.gov 650-439-2855
Supervisory Hydrologist Kristina Kirkyla Masterson, P.E. kmasterson@usgs.gov 631-736-0783
Ext: 147
Physical Scientist/Database Developer Alice J McCarthy ajmccart@usgs.gov
Research Chemist R. Blaine McCleskey rbmccles@usgs.gov 303-541-3071
Chief, Water Budget Branch Kurt McCoy kjmccoy@usgs.gov 804-261-2656
Senior Science Advisor, Office of the Associate Director for Water Timothy J McHale tmchale@usgs.gov 303-236-1225
​Water Science School Product Owner and Science Communicator​ Jessica (Jess) Mckay jlmckay@usgs.gov
Research Ecologist Michael R Meador mrmeador@usgs.gov 703-648-5620
Administrative Operations Assistant Kristal M Medina kmedina@usgs.gov 407-803-5561
Research Ecologist / Limnologist Michael F Meyer, PhD mfmeyer@usgs.gov
Research Hydrologist Matthew Miller mamiller@usgs.gov 303-541-3048
Physical Scientist Tristan G Mohs tmohs@usgs.gov 443-498-5603
Research Hydrologist John A Moody jamoody@usgs.gov 303-541-3011
Data Management Specialist Carol Morel cmorel@usgs.gov 571-433-5268
IT Specialist James E Morris jmorris@usgs.gov 785-832-3572
Chemist Stanley J Mroczkowski smroczko@usgs.gov 703-648-5870
Hydrologist Adam C Mumford amumford@usgs.gov 703-648-5893
Research Hydrologist Sheila Murphy sfmurphy@usgs.gov 303-541-3023
Hydrologist Erin M Murray emurray@usgs.gov 208-387-1328
HIF Engineering Technician Harold R Myers hrmyers@usgs.gov 228-688-1610
Environmental Data Scientist Cee Nell, PhD cnell@usgs.gov 608-828-9901
Chief, Engineering Branch Jeremy K Newson jknewson@usgs.gov
Director (acting), Observing Systems Division Joseph P Nielsen jnielsen@usgs.gov
IT Specialist Jordan Nihart jnihart@usgs.gov 228-688-1535
Research Physicist Emeritus John R. Nimmo, Ph. D. jrnimmo@usgs.gov 650-329-4537
Information Technology Specialist Shawn C Noble scnoble@usgs.gov 319-358-3640
Chemist Joshua J Nordick jnordick@usgs.gov 303-236-3162
Hydrologist Gretchen P. Oelsner , PhD goelsner@usgs.gov ​505-980-6494 
Hydrologist Samantha K Oliver, PhD soliver@usgs.gov 608-821-3824
Scientist Emeritus Carolyn G Olson colson@usgs.gov 703-648-5864
Government Information Specialist Patricia Orlando porlando@usgs.gov
Information Technology Specialist (Web Developer) Tade (Chip) Orr tworr@usgs.gov
Clerical Assistant Harry M Padbury hpadbury@usgs.gov 703-648-5240
Regional Management Officer R. Scott Padgett rspadget@usgs.gov 813-498-5026
Program Manager, Water Use and Water Budget Research Science Programs Jaime A Painter jpainter@usgs.gov
Physical Scientist Trevor Partridge, PhD tpartridge@usgs.gov
NWIS Modernization Program Manager Daniel K Pearson dpearson@usgs.gov 512-927-3561
Program Manager, Next Generation Water Observing Systems Brian Pellerin bpeller@usgs.gov 703-648-6865
Administrative Officer Emerson E Perez-Paniagua paniagua@usgs.gov 703-648-4526
Research Hydrologist Kimberlie Perkins kperkins@usgs.gov 650-329-4551
Chemist Sharon R. Pickersgill spickersgill@usgs.gov 303-236-1821
Physical Scientist Mark Poe mpoe@usgs.gov 838 280 5136
Physical Scientist Aaron J. Porter aporter@usgs.gov 804-404-9094
Ext: 106
Research Chemist Theresa Presser tpresser@usgs.gov
Chemist Haiping Qi haipingq@usgs.gov 703-648-6338
Chief, Decision Support Branch Jennifer L. Rapp jrapp@usgs.gov
Hydrologist Patrick P Rasmussen pras@usgs.gov 785-832-3542
Director (Acting), Integrated Information Dissemination Division Emily K Read, Ph.D. eread@usgs.gov (608) 400-9123
Scientist Emeritus Michael M Reddy mmreddy@usgs.gov 303-236-5941
Hydrologist (Information Management) Brian Reece bdreece@usgs.gov 512-927-3573
Chemist Lauren T Reid lreid@usgs.gov 703-648-5950
Hydrologist Hannah Reidemann hriedemann@usgs.gov
Research Hydrologist Meredith M Reitz, PhD mreitz@usgs.gov 703-648-5834
Physical Scientist Diana L Restrepo-Osorio drestrepo-osorio@usgs.gov 785-832-3514
Chemist Rhiannon C Revello rcrevell@usgs.gov 303-236-3258
Hydrologist David M Rey, PhD drey@usgs.gov 303-236-5392
Biologist Alicia M Rhoades arhoades@usgs.gov
National Water Quality Coordinator Melissa Riskin mriskin@usgs.gov 609-468-8844
Research Hydrologist Donald O Rosenberry rosenber@usgs.gov 303-236-4990
Ecologist Peter M Ruhl pmruhl@usgs.gov 703-648-6841
Chief of Staff Kendra L Russell klrussell@usgs.gov 703-648-5323
Hydrologist Kevin A Ryan karyan@usgs.gov 518-285-5600
Hydrologist Patrick J Ryan pryan@usgs.gov 321-239-4819
Research Hydrologist Emeritus Nancy Rybicki nrybicki@usgs.gov 703-648-5728
National Hydrologic Program Manager Paul H Rydlund, Jr. prydlund@usgs.gov 573-202-3994
Director (Acting), Earth Systems Processes Division David A Saad dasaad@usgs.gov 608-821-3865
Chemist ​Morgan Schachterle​ mschachterle@usgs.gov
Hydrologist Noah Schmadel nschmadel@usgs.gov
Water Resources Research Act Program Coordinator Christian G. Schmidt cgschmidt@usgs.gov 208-861-2866
Chief Technology Officer (Acting) Morgan Schneider moschnei@usgs.gov 608-821-3820
Research Hydrologist Martha A Scholl mascholl@usgs.gov 703-648-5890
Hydrologist Christopher E Schubert schubert@usgs.gov 631-736-0783
Ext: 109
IT Specialist Kurt Schultz kschultz@usgs.gov 402-328-4171
Chemist Eric A Schwab easchwab@usgs.gov 303-236-3178
Data Managment Chief, Southwest Region Elizabeth Sellers esellers@usgs.gov 703-648-4385
Hydrologist Kimberly Shaffer kshaffer@usgs.gov 614-430-7781
Computer Specialist Gregory L Shank glshank@usgs.gov 717-730-6932
Supervisory Research Hydrologist Rich Sheibley sheibley@usgs.gov 253-552-1611
IT Specialist Sascha Shelton sshelton@usgs.gov 512-927-3500
Hydrologist Megan Shoda msaksa@usgs.gov
Public Affairs Specialist Shipra Shukla sshukla@usgs.gov 916-532-3024
Chief (Acting), National Water Quality Laboratory and Chief, Quality Systems Branch James A Simmons, IV jsimmons@usgs.gov 303-236-1835
Research Hydrologist Katherine Skalak kskalak@usgs.gov 703-648-5435
Data Scientist Margaux Sleckman msleckman@usgs.gov
Geographer Rachel R Sleeter rsleeter@usgs.gov 253-313-3310
Machine Learning Specialist Jared D. Smith jsmith@usgs.gov
Hydrologist Richard L. Smith, Ph.D. rlsmith@usgs.gov 303-541-3032
Data Scientist Amelia Snyder asnyder@usgs.gov
Program Analyst Lara J So ljso@usgs.gov 703-648-5812
Civil Engineer Ricardo A Solis rsolis@usgs.gov 954-377-5948
Supervisory Hydrologist Elliot Sosa esosa@usgs.gov 787-749-7411
Hydrologist Paul Stackelberg pestack@usgs.gov 518-285-5652
Research Ecologist Sarah Stackpoole sstackpoole@usgs.gov 303-236-0271
Research Hydrologist / Biogeochemist Robert F Stallard stallard@usgs.gov 303-541-3022
Product Owner Lee Stanish lstanish@usgs.gov
Microbiologist Erin A Stelzer eastelzer@usgs.gov 614-516-1188
Research Ecologist Edward Stets estets@usgs.gov 763-783-3159
Research Hydrologist A. Robin Stewart arstewar@usgs.gov 650-329-4550
Hydrologist Charles Stillwell, Ph.D. cstillwell@usgs.gov 919-571-4018
Lead IT Specialist Ivan Suftin isuftin@usgs.gov 608-821-3825
Chief of Water Budget Office Gene Summerhill gasummer@usgs.gov 703-648-5309
Center Director David M Sumner, PhD dmsumner@usgs.gov 813-498-5025
Administrative Officer Casey T Tharp ctharp@usgs.gov 650-329-4457
Emeritus Research Chemist Kevin Thorn kathorn@usgs.gov 303-236-3979
Chemist Evan F Tillman etillman@usgs.gov 228-688-1501
Microbiologist Jennifer Underwood jcunder@usgs.gov 303-541-3033
Chemist Christy J Van Campen cvancampen@usgs.gov 303-236-3768
WMA ETO Program Analyst ANTONIO E. VIEDMA aviedma@usgs.gov 608-821-3878
Program Coordinator Chad R Wagner cwagner@usgs.gov 919-571-4021
Physical Scientist Wade J Walker walker@usgs.gov 719-562-2862
Research Hydrologist Michelle Walvoord walvoord@usgs.gov 303-236-4998
Hydrologist Emeritus Ean M Warren ewarren@usgs.gov 650-329-4554
Machine Learning Engineer David Watkins wwatkins@usgs.gov
Chief, Cybersecurity Branch Dawn Wellein dwellein@usgs.gov
Senior Management Officer Nathan Wenger nwenger@usgs.gov 703-648-5142
Chemist Susan M Whitcomb swhitcomb@usgs.gov 303-236-3213
Hydrologist Eric A White eawhite@usgs.gov 860-487-7402
Ext: 23
Research Ecologist Kimberly Wickland kpwick@usgs.gov 303-541-3072
Hydrologist Christopher Wilson cwilson@usgs.gov 228-688-3075
Biologist Lisamarie Windham-Myers lwindham-myers@usgs.gov 650-329-4447
Hydrologist Richard B Winston, Ph.D. rbwinst@usgs.gov 703-648-5988
Hydrologist (Surface Water Specialist) Karl E Winters kwinters@usgs.gov 804-261-2619
Hydrologist Joshua Woda jwoda@usgs.gov 518-949-3944
Ext: 685
Hydrologist (Research) David M Wolock, Ph.D. dwolock@usgs.gov 785-832-3528
Computer Scientist Andrew N Yan ayan@usgs.gov 608-821-3921
Research Hydrologist Megan Barbara Young mbyoung@usgs.gov 650-329-4544
Program Analyst James D Zeigler jzeigler@usgs.gov 703-648-5708
Hydrologist Wesley O Zell wzell@usgs.gov 703-648-5835
Data Scientist Joseph Zemmels, PhD jzemmels@usgs.gov
Physical Science Technician Louis T Zinanti lzinanti@usgs.gov 303-236-3256
Supervisory Physical Scientist Mark Zucker mzucker@usgs.gov 954-377-5952
Senior Data Scientist Jacob Zwart, PhD jzwart@usgs.gov
​Physical Scientist, Product Owner Renee ​Pieschke rpieschke@usgs.gov
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