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BOP NUMBER 0.0 <br />• Tool box, duct tape, etc. <br />• Health and safety equipment as specified in the Health and Safety Plan (HSP) <br />Page 2 of 9 <br />Pump Testing <br />2.2 Instrument Calibration <br />The flow meter, transducers, and electronic water level meters will be calibrated or checked to <br />make sure they are working properly before commencement of each pumping test. Copies of <br />instrument calibration documents will be filed with the records of the test data. Calibration <br />records should contain the laboratory measurements. The following checks and calibrations will <br />be performed for pumping test equipment: <br />• The in -line flow meter will be checked on site using a manometer and calibrated orifice: <br />• The unique input parameters for each pressure transducer will be input to the data logger. The <br />accuracy of the transducers will be checked by moving the transducer up and down in the <br />well a known vertical distance and reading the pressure (or feet of water) values recorded at <br />the data logger. The known amount that the transducer is moved up or down should match <br />the value displayed on the data logger. Also, the sign of the value on the data logger will be <br />checked to verify the direction of transducer movement. <br />• The water level meters will be checked to make sure that there are no lengths of cable cut off, <br />and that the footages are accurate (compare with steel tape). The probes will be submerged <br />into water to verify that the tone and/or indicator light are functional. <br />a Calibrate all Water quality meters, if used during testing, as specified in SOP No." <br />2.3 Pumping Test Procedures <br />The following sections describe the three main components of the pumping tests. <br />Step - Discharge Test — An approximately 10 -hour step - discharge test will be conducted at pre- <br />selected rates based on results from well development or previous pumping tests (if any). The <br />purpose of the step- discharge test is to estimate the optimum sustainable pumping rate for the <br />constant -rate test, and to assess how specific capacity varies with increasing pumping rates. <br />The step- discharge test will involve pumping the well at five successively increasing discharge <br />rates. Each pumping rate (step) will continue for at least 2 hours, or until water levels generally <br />stabilize. Water level data from the pumping well and observation wells located within 400 feet <br />of the pumping well will be collected using a Hermit 3000 data logger on a linear time schedule <br />at 1- minute intervals. <br />After completion of the step - discharge test, the water level data will be analyzed to estimate the <br />Optimum pumping rate for the constant -rate test. A qualified person familiar with aquifer test <br />data analysis will perform these analyses. <br />Constant -Rate Test — A minimum 24 -hour to maximum 72 -hour, constant -rate test will be <br />conducted after the aquifer has recovered to within 95 percent of pre -step test static conditions. <br />Water levels will be measured at least three times to verify that static conditions have been re- <br />established. <br />0 -2 <br />