739 Hastings St.
Traverse City, MI 49686-3458
Phone: 231-941-2230
Fax: 231-941-2240
1295 King Avenue
Columbus, OH 43212
Phone: 614-487-1040
Fax: 614-487-1920
31700 W. Thirteen Mile Road
Suite 215
Farmington Hills, MI 48334
Phone: 248-538-0900
Fax: 248-538-0906
1100 Pavelski Road
Eau Claire, WI 54703
Phone: 715-829-3737
Fax: 715-874-5389
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.
739 Hastings Street
Traverse City, MI 49686
Phone: (231) 941-2230
Fax: (231) 941-2240