Or. Admin. Code § 690-217-0035
Current through Register Vol. 63, No. 12, December 1, 2024
Section 690-217-0035 - Pump Test Specifications for Flowing Artesian Wells Without PumpsIf a flowing artesian well is not fitted with a pump and is normally used in an open discharge fashion, the test shall be conducted in the following manner:
(1) The well shall be shut in for 16 hours prior to the test and the shut-in pressure recorded in the hour prior to the test.(2) The well shall be allowed to flow for a measured period of time of at least four hours, during which time the flow rate is to be measured and kept as constant as possible.(3) After the flowing period, the well shall be shut in and the pressure build-up recorded on the same schedule as described in OAR 690-217-0025(5) for water level recovery data collection in non-flowing well tests. Pressure build-up shall be recorded for four hours or until the pressure reaches 95 percent of the pretest shut-in pressure.Or. Admin. Code § 690-217-0035
WRD 25-1988, f. & cert. ef. 12-20-88