OAR 690-217-0030: Pump Test Specifications for Flowing Artesian Wells with Pumps

(1) Pump tests for flowing artesian wells with pumps shall be conducted such that the following minimum specifications are met. (2) The well shall be shut in for at least sixteen hours prior to the test and the shut-in pressure recorded within the hour prior to the test at least three times no less than 20 minutes apart. (3) The pump test shall be conducted in the same manner as outlined for non-flowing wells in OAR 690-217-0025 except that water levels above ground shall be determined by the use of a pressure gauge and reported as pounds per square inch (PSI). If at any time during the test the pressure drops below zero PSI, indicating the water level in the well has dropped below ground level, the water level shall be measured by a method listed in OAR 690-217-0045.