Great Lakes Environmental Center Applied Water Quality & Environmental Sciences

Environmental Chemistry Laboratory

Lab Tech

At GLEC we have the experienced staff, equipment, and resources necessary to conduct environmental chemistry evaluations, either in support of other programs or as stand-alone projects. GLEC has completed hundreds of integrated surveys of large and small water bodies involving the collection and chemical analysis of water, effluent, sediment, and biological tissue samples for inorganic constituents. GLEC’s stringent Quality Assurance/Quality Control (QA/QC) pro cedures comply with the National Environmental Laboratory Accreditation Program (NELAP). All laboratory practices follow written Standard Great Lakes Environmental Center 5.2 Env Chemistry Cap 5.16.pdf Operating Procedures. A list of commonly requested parameters and their associated reporting limits are listed below; other parameters are available.

Inorganic/Nutrient Chemistry Analysis Examples

Alkalinity 20 mg/L
Biochemical Oxygen Demand 0.2 mg/L
Chloride (CL-) 2 mg/L
Chlorophyll a 0.0007 mg/L
Color 2 CU
Conductivity 1 uhos/cm
Grain Size Analysis NA
Hardness 5 mg/L
Ammonia (NH3-N)
Kjeldahl, Total (TKN)
Nitrate/Nitrite (NO3/NO2-N)
Nitrate (NO3-N)
Nitrite (NO2-N)
Total Nitrogen
0.1 mg/L
0.4 mg/L
0.005 mg/L
0.005 mg/L
0.005 mg/L
0.3 mg/L
Periphyton (Ashfree Dry Weight ) 0.0005 g
Total (TP)
Low Level (TP)
Soluble Reactive (SRP)
Low Level SRP
Dissolved Organic (DOP )
0.003 mg/L
0.001 mg/L
0.003 mg/L
0.001 mg/L
0.003 mg/L
Total Suspended (TSS)
Total Dissolved (TDS)

0.5 mg/L
5 mg/L
Suspended Sediment Concentration (S SC) 1 mg/L


Contact: Michelle A. Moore, Nutrient Chemistry
Laboratory Coordinator
Click to Email     231-941-2230


Contact: Robin Silva-Wilkinson, Principal Research Scientist
Click to Email     231-941-2230


Low-Level Nutrient Chemistry

Low-Level Chlorophyll Analysis

Sediment Studies

Site-Specific Criteria Development

Electronic Data Deliverables

Level I through IV data packages