We would be happy to answer any of your soil testing questions.

Plant

Please email us by using the addresses below.

  • Herb Steffen – hrsteffen@gmslab.com
  • Georgia Steffen – gmsteffen@gmslab.com
  • Aaron Steffen – steffena@gmslab.com
  • Cheryl Williams-Molck (Mapping) – gmslab83@gmslab.com
  • Billing – reception@GMSLab.com

Address

GMS Laboratories
P.O. Box 61, 23877 E 00 North RD
Cropsey IL, 61731

Phone and Fax

Phone at (309)377-2851 or toll free at (877)315-6007.
Fax to (309)377-2017.