WESTECH's aquatics staff has collected and analyzed nearly 2,300 macroinvertebrate samples from Montana alone. We have also conducted macroinvertebrate surveys in Idaho and Oregon.

The aquatics section offers to:

• conduct Levels I - IV (Rosgen) stream assessment and classification;
• design a macroinvertebrate sampling program to meet your needs;
• collect macroinvertebrate samples using one of a variety methods including Surber net, Hess net, drift net, kick net, and Hester-Dendy plate sampling;
• subsample or analyze the entire sample to the lowest practical taxon;
• identify the family Chironomidae to at least the genus level;
• analyze the data using some 25 metrics;
• compile all of the physical and biological data into a graphically illustrated narrative which provides a detailed physical and biological assessment of the stream's existing condition.