Maryland Department of Natural Resources

MGS Staff Directory

List of staff members and their contact info
Name Telephone
 E-mail
Administration
Stephen Van Ryswick, Director (410) 554-5544 stephen.vanryswick@maryland.gov
Tina Chinedu Mbonu, Administrative Officer (410) 554-5511 tina.chinedumbonu@maryland.gov
Ed Thompson, Maintenance Engineer (410) 554-5564 --
Sharon Sladko, Administrative Aide (410) 554-5512 sharon.sladko@maryland.gov
Public Information, Publications, and Library Services (410) 554-5505 nasir.iqbal@maryland.gov
Coastal and Environmental Geology Program
Dr. Christopher P. Williams, Chief (410) 554-5559 christopherp.williams@maryland.gov
Rebecca H. Kavage Adams, Geologist (410) 554-5553 rebecca.adams@maryland.gov
Joseph P. Allman, Geologist (410) 554-5542 joseph.allman@maryland.gov
Gillian Branam, Geologist (410) 554-5516 gillian.branam@maryland.gov
Dr. David K. Brezinski, Geologist (410) 554-5526 david.brezinski@maryland.gov
Timothy Cooney, Geologist (410) 554-5545 timothy.cooney@maryland.gov
Ashley Eick, Geologist (410) 554-5516 ashley.eick@maryland.gov
Anna Gillmor, Geochemist (410) 554-5518 anna.gillmor@maryland.gov
Ryan Higgins, Geologist (410) 554-5523 ryan.higgins@maryland.gov
Nasir Iqbal, Geologist/Education Coordinator (410) 554-5505 nasir.iqbal@maryland.gov
Leafia Sheraden-Cox, Geologist (410) 554-5532 leafia.sheradencox@maryland.gov
Tanner Smith, Geologist (410) 554-5532 tanner.smith@maryland.gov
William Vincett, Geologist (410) 554-5543 william.vincett@maryland.gov
Jeremy Wiles, Geologist (410) 554-5545 jeremy.wiles@maryland.gov
Hydrogeology and Hydrology Program
Andrew Staley, Chief (410) 554-5561 andrew.staley@maryland.gov
David C. Andreasen, (Retired Chief, Technical Contractor) ------ david.andreasen@maryland.gov
Dr. Rubina Firdous, Hydrogeologist (410) 554-5551 rubina.firdous@maryland.gov
Johanna Gemperline, Hydrogeologist (410) 554-5552 johanna.gemperline@maryland.gov
Isabel Glasman, Geologist (443) 743-3011 isabel.glasman@maryland.gov
Kirk Marks, Hydrogeologist (410) 554-5558 kirk.marks@maryland.gov
Heather Quinn, Geologist (410) 554-5522 heather.quinn@maryland.gov
Thomas Ulizio, Geologist (410) 554-5560 thomas.ulizo@maryland.gov
Tyler Van Ness, Geologist (410) 554-5550 tyler.vanness1@maryland.gov
Annapolis (Tawes B-3) Lab Office (410) 260-8816
Support Services
SECURITY OFFICER (410) 554-5508 — —
photo of MGs staff. four rows of people on steps outside building.
Maryland Geological Survey 2018:
Front Row (left to right): Darlene Wells (retired), Johanna Gemperline, Dave Bolton (retired), Jon Achmad (retired), Isabel Glasman.
2nd Row (left to right): Bryan Nicholson (no longer with the Survey), Rebecca Kavage Adams, Anna Gillmor, David Andreasen, Tiffany VanDerwerker (no longer with the Survey).
3rd Row (left to right): Rich Ortt (former Director), Andy Staley, Stephen Van Ryswick (Director), Katie Knippler, Tina Chinedu Mbonu.
Back Row (left to right): Chris Connallon (no longer with the Survey), Dale Shelton (retired), Heather Quinn, Jeff Halka (Director Emeritus), Bruce Michael (retired Director, DNR Resource Assessment Service).
Not pictured: Joseph Allman, Gillian Branam, David Brezinski, Timothy Cooney, Ashley Eick, Rubina Firdous, Ryan Higgins, Kirk Marks, Anthony Reisinger, Thomas Ulizio, Tyler Van Ness, Will Vincett, Jeremy Wiles, Christopher Williams, and Glen Shinholt

See an interactive display of MGS staff over the years