Choose Zone 2 Sump
Sump Water Level At Beginning of Test
Pumping Rate (Verify With Bucket Test)
Sump Water Level At End of Test
Leak > 3.47 gpm?
Who Collected The Sample?
Pumping rate in gpm.
Beginning Gallons (If Using Flowmeter)
Ending Gallons (If Using Flowmenter)
Large Reservoir Zone 1 & 2 Leak Detection
Once a sump level exceeds the Maximum Allowable Head (MAH) notify your supervisor. If the Allowable Leakage Rate (ALR) is exceed, notify Kennecott’s environmental compliance officer who will report the results of the water quality sampling and volume pumped from leak detection sumps to the Executive Secretary of the Utah Water Quality Board.
Pump The Sumps
Once a sump exceeds the MAH of 4.00-feet for Zone 1 and 4.60-feet for Zone 2, the sump will be pumped to determine if the ALR of 3.47 gpm has been exceeded. The dedicated variable speed pump will be adjusted to deliver the ALR. The exact measured rate and the variable speed drive setting will be recorded in the test log. After calibration is complete, the time will be noted and the test started. All pertinent observations will be logged. The duration of the pump test will be recorded at the beginning and the end of the test. A reduction in the level of water will mean that the leakage rate is below permitted levels and the observation program should be continued. Should the water increase or remain the same during the test, the effective leakage rate is greater than or equal to 3.47 gpm (or the permit maximum of 5000 gpd). Then the approved Leak Detection and Repair Program will be implemented and samples will be collected (call KUC samplers).