Environmental Engineering

GLEC environmental engineers conduct engineering studies for a wide range of environmental applications, including:

  • Regulatory and cost-benefit analysis
  • Technical guidance for water quality standards development and implementation
  • Sampling designs for mass balance, eutrophication, and bioaccumulation studies
  • Total maximum daily load (TMDL) studies
  • Mixing zone and waste-load allocation (WLA) studies
  • Contaminant trackdown
  • Sediment trap sampling
  • Chemical and nutrient loading estimation
  • Statistical analysis of censored and otherwise badly-behaved data
  • Statistical modeling
  • Water quality modeling
  • Impacts of climate change on aquatic resources

Our experience working with both regulatory agencies and the regulated community enables GLEC to solve problems using a broad array of technical approaches.


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