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Connell Resources <br />5124/2005 <br />by: LKF <br />Wellington Downs Pit Reservoir <br />Seepage Testing Calculations <br />Start Date of Test <br />End Date of Test <br />Total number of days of Test <br />Starting Reservoir Volume <br />Ending Reservoir Volume <br />4-Feb-05 <br />4-May-05 <br />90 <br />Change in reservoir volume over test period <br />5 Net Reservoir gain (loss) over test period <br />Calculations for State Engineers Standards <br />Reservoir Floor surface area <br />Perimeter length <br />Average height of embankment <br />Total Wall Area <br />Allowable Wall Seepage <br />Allowable Floor Seepage <br />Units <br />0.300 acre-feet <br />15.580 acre-feet <br />-15.280 acre-feet <br />2.04 acre-feet <br />60.80 Acres <br />7,870.00 Feet <br />12.00 Feet <br />94,440.00 sq ft <br />0.03 cu ftlday/ sq ft <br />0.0015 cu ft/day/ sq ft <br />Calculated Allowable Wall Seepage 5.85 acre-feet <br />Calculated Allowable Floor Seepage 8.21 acre-feet <br />Calculated Allowable Reservoir Seepage (Design) 14.06 acre-feet <br />Calculated Allowable Reservoir Seepage (Pertormance) 42.19 acre-feet <br />2 Measured Rainfall at reservoir site <br />3 Pan evaporation data for test period <br />a Pan coefficient <br />Calculated evaporation for test period <br />Calculated Reservoir Loss in inches <br />Surface Area of Standing Water (Average) <br />5 Net Reservoir gain (loss) over test period <br />2.34 Inches <br />6.93 Inches <br />0.79 <br />5.47 Inches <br />3.13 Inches <br />7.82 Acres <br />2.04 acre-feet <br />Data Sources: <br />1 Calculations prepared by Applegate Group Inc. <br />2 Data collected by Applegate Group on-site <br />3 Evaporation Irom Cotorado Climate Center- Colorado State University <br />4 Pan Coefficient obtained from NC WCD -South Ft. Collins Weather Station <br />5 Net reservoir gain reflects mass balance of precipitation and evaporation <br />