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Office of the State Engineer <br />3 February 2006 <br />Page 3 <br />INITIAL LINER TEST WORK PLAN <br />The details of the proposed 90-day Liner Test are as follows: <br />1. Pump out water until an "essentially dry", steady state has been achieved. A pump of suitable size <br />and diameter will be used to provide continuous pumping. A totalizer will be installed on the pump <br />in order to document steady state. Once steady state has been achieved, the 90-day test will begin <br />with the approval of the SEO. <br />2. The pump will be placed in the southwestern comer of the reservoir as shown on Figure 2. Water <br />will be discharged directly into the Arkansas River. <br />3. Once steady state has been achieved, either channels or grading of the reservoir bottom will be used <br />to direct precipitafion to the sump pump. <br />4. Weather resources on or near the site location will be used to determine precipitation into the <br />reservoir. <br />5. Precipitation data and totalizer readings will be obtained a minimum of three times per week. <br />6. Prepare a water accounting spreadsheet to determine the amount of groundwater inflow into the <br />reservoir by comparing the net inflow of water into the pit to the change in outflow of water through <br />the totalizer on the sump pump. Precipitation will be the amount of direct precipitation into the <br />reservoir. Runoff into the reservoir will not be accounted for because Transit Mix will construct a <br />soil berm around the top of the compacted embankment. The soil berm should eliminate the <br />potential for precipitation runoff into the reservoir. Precipitation events will be noted as "spikes" in <br />the daily pumping rates assuming the pumping rate returns to a steady state. Since the reservoir will <br />be pumped dry, evaporation should not be an issue and will not be accounted for. <br />7. Conclude the test approximately 90 days from start. A detailed report presenting the results of the <br />90-day Liner Test will be prepared and submitted to the Division Engineer immediately following <br />completion. The allowable inflow will be determined based on the State Engineer's standards. <br />Assuming a perimeter area of 4.04 acres with a bottom area of 102.14 acres, the total calculated inflow, <br />based on a completely dewatered pit and the total allowable inflow from groundwater seepage during the <br />90-day test for each of the standards was calculated. A summary of the standards is provided below and <br />calculations are attached: <br /> Desi n Standard Performance Standard <br />Reservoir Perimeter 27 m 82 m <br />Reservoir Bottom 35 m 104 m <br />Total 62 m 186 m <br />Note: gpm is gallons per minute <br />=, <br />Z~~ <br />13ENIV . <br />~C <br />