ARSD 74:02:05:07. Observation well measurements to be used to determine the need for regulation

When regulating water withdrawals by large-capacity wells and in determining the availability of unappropriated water for an application for a permit to appropriate water, the board shall rely upon the record of observation well measurements in addition to other data to determine that the quantity of water withdrawn annually from the aquifer does not exceed the estimated average annual recharge to the aquifer.