AIPG National Executive Committee
PRESIDENT - Charles Drake, CPG Bio-Tech Consulting O: (407) 256-7715, Florida Section
chuck@bio-techconsulting.com
PRESIDENT-ELECT - Douglas C. Peters, CPG
Peters Geoscience O: (303) 970-7601, Colorado Section
dcpeters@tuveraexploration.com
PAST PRESIDENT - Sara Pearson, CPG
Michigan Geological Survey O: (269) 387-8611, Michigan Section
sara.pearson@
wmich.edu
VICE PRESIDENT - Mark Schaaf, CPG Tradepoint Atlantic O: (845) 325-4646, Capitol Section
Markschaaf27@gmail.com
SECRETARY - Mark J. Howell, CPG Xenon Geosciences O: (317) 626-0600, Indiana Section
mhowell@xenongeosci.com
TREASURER - J. Todd McFarland, CPG WSP USA O: (615) 336-3817, Tennessee Section
todd.mcfarland@
wsp.com
EDITOR - Adam W. Heft, CPG WSP USA O: (517) 886-7400, Michigan Section
adam.heft@wsp.com
EARLY CAREER PROFESSIONAL - Skyler C. Vertes, ECP
Stantec O: (803) 319-0557, Carolinas Section
Skylar.vertes@
stantec.com
ADVISORY BOARD REPRESENTATIVES
Michael L. Alter, CPG Clear Creek Associates O: (703) 740-7573, Arizona Section
malter@geo-logic.com
Luke Ducey, CPG WSP USA (217) 778-5555, Missouri Section
luke.ducey@wsp.com
Hong T. Spores, CPG HDR Engineering O: (763) 278-5907, Minnesota Section
hong.spores@hdrinc.com
Steven J. Stokowski, CPG Stone Products Consultants O: (508) 259-3536, Georgia Section
sstokowski@yahoo.com
NATIONAL HEADQUARTERS
10701 Melody Drive, Suite 630 Northglenn, CO 80234
7:30 AM - 4:30 PM MDT; M-F
(303) 412-6205 • Fax (303) 253-9220
aipg@aipg.org •
www.aipg.org
EXECUTIVE DIRECTOR - Aaron W. Johnson, CPG -
awj@aipg.org ASSISTANT DIRECTOR - Wendy J. Davidson -
wjd@aipg.org PROFESSIONAL SERVICES MGR - Cathy L. Duran -
cld@aipg.org MEMBERSHIP SERVICES - Kayla Casey -
aipgmembership@aipg.org BOOKKEEPER/ADMIN ASSISTANT - Ashley M. Whalen -
bookkeeper@aipg.org OFFICE ASSISTANT - Kathy M. Glivar -
officeadmin2@aipg.org AWG ADMIN ASSISTANT - Mona J. Scott -
office@awg.org AASG ADMIN ASSISTANT - Karen I. Keeley -
office.aasg@gmail.com
MEDICAL, AUTO, HOME, LIFE AND SUPPLEMENTAL INSURANCE GeoCare Benefits Insurance Plan Phone: 800-337-3140 or 602-870-4121
http://www.geocarebenefits.com/
member.asp E-mail:
geocarebenefits@agia.com
PROFESSIONAL & GENERAL LIABILITY INSURANCE Allan Crumbaker, Schomburg Insurance,
Phone (702) 328-4983
allan@schomburginsurance.com
ALAMO RENTAL CAR - (800) 354-2322 - Member #BY-706768
AVIS RENTAL CAR - (800) 698-5685 - Member AWD #T003300
UPS Savings Program
www.aipg.org or
www.savewithups.com/aipg Use promo code WES462
The Professional Geologist (USPS 590-810 and ISSN 0279-0521) is published quarterly by the American Institute of Professional Geologists,10701 Melody Drive, Suite 630, Northglenn, CO 80234. Periodicals Postage Paid at Denver, Colorado and additional mailing offices.
POSTMASTER: Send address changes to The Professional Geologist, AIPG, 10701 Melody Drive, Suite 630, Northglenn, CO 80234
Subscriptions for all Members and Adjuncts in good standing are included in annual membership dues. Subscription prices are $20.00 a year for Members’ additional subscriptions and $30.00 a year for non-members for 4 issues (for postage outside of the U.S. add $10.00). Single copy price is $5.00 for Members and $8.00 for non-members. Claims for nonreceipt or for damaged copies are honored for three months.
Entire contents copyright 2026 by The Professional Geologist. Original material may be reprinted with permission. Deadline for articles and advertisements is eight weeks preceding publication. Advertising rates available upon request. Opinions and views expressed by the authors are their own and do not necessarily reflect those of the American Institute of Professional Geologists, its staff, or its advertisers.
Printed in U.S.A. by Modern Litho-Print Company in Jefferson City, Missouri. For AIPG news and activities go to
www.aipg.org.
AIPG Publication Policy, October 4, 2010. AIPG encourages submission of articles and editorials for publication in TPG on top- ics related to the science and profession of geology. Submittals shall be of interest to the members of AIPG, other professional geologists, and others interested in the earth sciences. Articles and editorials may be noted as follows at the discretion of the Editor, “The opinions, positions and conclusions presented herein are those of the author and do not necessarily reflect the opin- ions, positions or conclusions of the American Institute of Professional Geologists.” All materials submitted for publication, includ- ing author opinions contained therein, shall include accurate and appropriate references. The Editor has the authority to solicit, edit, accept, or reject articles and editorials and other written material for publication. The Executive Committee has the authority if it so chooses to act on any particular case to support or overrule actions of the Editor regarding the solicitation, editing, accep- tance, or rejection of any particular article, editorial, or other written material for publication.
American Institute of Professional Geologists (AIPG) is the only national organization that certifies the competence and ethical conduct of geological scientists in all branches of the science. It adheres to the principles of professional responsibility and public service, and is the ombudsman for the geological profession. It was founded in 1963 to promote the profession of geology and to provide certification for geologists to establish a standard of excellence for the profession. Since then, more than 12,000 individuals have demonstrated their commitment to the highest levels of competence and ethical conduct and been certified by AIPG.
The mission of the American Institute of Professional Geologists (AIPG) is to effectively advocate for the profession of geology and support members through activities and programs that advance professional growth and promote high standards of ethical conduct.
DEPARTMENTS 3
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Editor’s Corner Letters to the Editor
Executive Director’s Message President’s Message Test Your Knowledge
Professional Ethics and Practices Tales from the Field Educator’s Corner
The Foundation of the AIPG
Geoscience Gold AIPG Member List In Memoriam
AIPG Membership Totals Professional Services Directory Back Cover New Certified Professional Geologists
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