Contact Information
971 Coffman Road, Building B
Whitewater, CO 81527

Mailing Address
Department 5087
P.O. Box 20,000
Grand Junction, CO 81502-5001

(970) 255-7121

Sprayer Calibration Methods

Calibrating a sprayer is critical to applying the correct amount of herbicide. Over application can injure desirable vegetation and under application can cause the noxious weeds to build up resistance to the chemical over time.

The following links will help you calibrate: