The economical use of water in irrigation depends primarily on water measurement. That significant advantages, public and private, attend the measurement of water delivered to individual irrigators has long been recognized in older irrigated countries. The rapidly increasing utilization of Utah's available water supply, the consequent increase in its value, and the tendency on the newer canal systems to base the annual irrigation charges on the amount of water used make an understanding of the methods of water measurement an absolute necessity. Furthermore, many irrigators now realize that the vast store of information concerning the relations of water, soils, and plants that has been accumulated in years past cannot be utilized in practice without the measurement of water.
As a result of the growing appreciation of the value of water measurement, there is frequent inquiry as to materials and methods used in measuring water under different conditions. To facilitate the answering of such inquiries, and otherwise to spread information concerning water measurement, this circular is prepared.
Israelsen, O. W., "Circular No. 36 - Practical Information on the Measurement of Irrigation Water" (1919). UAES Circulars. Paper 31.