CNUA of In Situ Salinity Sensors 
CNUA of In Situ Nutrient Sensors II
CNUA of In Situ Turbidity Sensors
CNUA of In Situ Chlorophyll Fluorometers 
CNUA of In Situ Nutrient Sensors
All CNUA are conducted for ACT by Responsive Management, an internationally recognized public opinion and attitude survey research firm specializing in natural resource issues. Responsive Management's mission is to help natural resource and outdoor recreation agencies and organizations better understand and work with their constituents, customers, and the public. This is accomplished through a variety of methodologies, including telephone and mail surveys, focus groups, and numerous other techniques.