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!Aquifer Testrng Work Order 3 <br /> Tosco 6024 11400 Merritt St Castrovills CA January 1 t3 2002 <br /> NOTE AS YOU INCREASE PUMPING RATE, DON'T FORGET TO RECALIBRATE <br /> TOTALIZER FLOW METERI <br /> ' If the water is being drawn down and appears to dropping at a rate that will expose <br /> the pump,you will need to back off the pump rate. Note times of pumping rate <br /> chanties <br /> 5) When a sustainable rate has been achieved, hold pump rate for 3 hours. Record time, <br /> ' Record DTWs from data loggers In pumping well and observation wells at the beginning of <br /> this 3-hour pumping period and record on field data sheets <br /> 6) Following the 3-hour period, shut down pump and allow aquifer to stabilize <br /> 7) Record Flow Totalizer Reading after pumping, ` gallons <br /> 8) Note DTW In pumping and observation wells at the end of the 3-hour period and record on <br /> field data sheets <br /> DAYS 2 AND 3 APRIL 2 AND 3 2002—CONSTANT RATE DISCHARGE TEST <br /> ' IMPORTANT!!AS ABOVE, DURING THE TEST, CONTINUOUSLY NOTE WATER LEVELS IN THE <br /> HOLDING TANK IF PRODUCING A LOT OF WATER, CONTACT KRISSY ASAP SHE WILL <br /> ARRANGE FOR EXTRA TRIPS (IF NEEDED) BY DILLARD TO PICK UP/DISPOSE OF WATER <br /> ALSO MAKE SURE THAT GENERATOR HAS ENOUGH FUEL THROUGHOUT THE TESTIII <br /> lie 1 Once water levels have recharged to static levels following the Step-Drawdown Test, <br /> record DTW In pumping well and observation wellsrior to beginning the 24-hour <br /> p 9 9 <br /> constant-rate pumping test <br /> 2) Check computer and make sure that the datalo � <br /> p ggers are logging DTW measurements In all I <br /> of the wells before beginning the constant rate discharge test <br /> 3) Initiate 24-hour Constant Rate Aquifer test by pumping at selected flow rate determined <br /> from the Step Drawdown Test Record start time and flow rate m <br /> I <br /> 4) Periodically check the pumping rate to ensure the constant rate Is maintained Record any <br /> changes/times of changes <br /> 5) Observe DTWs in pumping well and observation wells every 2 hours to make sure they are <br /> working properly <br /> 6) Periodically check holding tank water levels and fuel levels In generatorlll <br /> 7) After continuous extraction for 24 hours, shut down pump and allow data logger to record <br /> recharge water levels after test Record test end time and water levels in Rumping and <br /> observation wells Leave in data loggers for the day <br /> 8) Record Flow Totalizer Reading: gallons <br /> ' 9) Call for a pick up for the generator at the end of the test. <br /> • iU) Call Krissy and let her know how much water Is left in the holding tank,so she can arrange <br /> ' for disposal of remaining water and removal of the tank. <br /> I%RC01493AWork Requests\Aqul}e►Test wkReq doo <br />