Section 37.03.02.040 - WATER MEASUREMENT01.Measurement Terminology.a. Rate of flow measurements shall be shown in units of cubic feet per second (cfs) with three (3) significant figures and no more precision than hundredths.b. Volume measurements shall be shown in units of acre-feet (AF) with three (3) significant figures, and no more precision than tenths.02.Rate of Diversion. The rate of diversion measurement shall be conducted as close as reasonably possible to the source of supply and shall be measured with the project works fully in place operating at normal capacity. For example, if a sprinkler system is used for irrigation purposes, discharge from the pump must be measured with the sprinkler system connected.03.Measurements. Water measurements may be made by vessel, weir, meter, rated flume, reservoir capacity table or other standard method of measurement acceptable to the Director. The field report shall describe the method used in making the measurement, the date when made, the name of the person making the measurement, the legal description of the location where the measurement was taken and shall include sufficient information, including current meter notes, rating tables, and/or calibration information to enable the Director to check the quantity of water measured in each case.04.Unacceptable Measurements. Theoretical diversion rates or theoretical carrying capacities are not acceptable as a measure of the rate of diversion except as indicated in these rules and for some diversion systems where the flow rate cannot be measured accurately due to the physical characteristics of the diversion and distribution system.05.Method. Rate of flow measurements shall be determined using equipment and methods capable of obtaining an accuracy of plus or minus ten percent (10%).Idaho Admin. Code r. 37.03.02.040