This first class is ITRC’s traditional comprehensive 2 1/2 day class which combines classroom (50%) and outdoor laboratory (50%) activities. Efficiency definitions and evaluation techniques are emphasized, ranging from how to take a pressure measurement to what specific measurements are needed for evaluation of six distinct irrigation methods (furrow, border strip, hand move/side roll sprinkler, linear move sprinkler, undertree sprinkler, and drip/micro). These systems can be “tuned up” to conserve water and power, and to maintain adequate surface water and groundwater qualities. The techniques and programs covered are the standard used for DWR-funded evaluation projects throughout California.