Please use the contact form to submit inquiries and provide feedback regarding GLEC services.  The appropriate staff  will acknowledge and respond to inquiries and feedback via email.  You can also correspond via mail or phone with GLEC offices and laboratories in Traverse City and Columbus or satellite offices in Michigan and Wisconsin at the following addresses:

GLEC – Traverse City, Michigan

739 Hastings St.
Traverse City, MI 49686-3458
Phone: 231-941-2230
Fax: 231-941-2240

GLEC – Columbus, Ohio

1295 King Avenue
Columbus, OH 43212
Phone: 614-487-1040
Fax: 614-487-1920

GLEC – Farmington Hills, Michigan

31700 W. Thirteen Mile Road
Suite 215
Farmington Hills, MI 48334
Phone: 248-538-0900
Fax: 248-538-0906

GLEC – Eau Claire, Wisconsin

1100 Pavelski Road
Eau Claire, WI 54703
Phone: 715-829-3737
Fax: 715-874-5389

GLEC – River Falls, Wisconsin

238 Kusilek Street
River Falls, WI 54022
Phone: 715-821-9540
Fax: 231-941-2240


GLEC operates one of only a few U.S. laboratories accredited for whole sediment toxicity testing. GLEC also maintains NELAP accreditation for chlorophyll and nutrient chemistry testing.


GLEC's Columbus, OH laboratory is ADEQ accredited for Acute Toxicity and Chronic Toxicity testing.



Great Lakes Environmental Center

739 Hastings Street
Traverse City, MI   49686

Phone: (231) 941-2230
Fax: (231) 941-2240