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e <br />Mr. Richard Raines <br />North Taft Hill Expansion Site M01-051 <br />June 17, 2004 <br />Page 5 <br />Lafarge West, Inc. -North Taft Hill Expansion Site (DMG #M-01-051) <br />(All values in Acre-Feet) <br /> Transit loss <br /> Evaporative Lagged Dewatering Lagged Net from Replacemen <br /> Depletions Depletions Discharge Depletions Accretion/de Chambers from the Tri- <br />Month from pletion to Reservoir Districts <br /> (1) (2) (3) Dewatering Poudre River Lease <br /> (4) (5) (6) (7) <br />May-04 0.11 0.04 164.41 58.96 105.41 <br />June-04 0.18 0.11 159.10 122.92 36.07 <br />July-04 0.19 0.16 164.41 147.04 17.21 <br />August-04 0.17 0.17 164.41 157.75 6.48 <br />September- 0.12 0.15 159.10 159.94 -0.99 0.08 1 <br />1 <br />04 . <br />October-04 0.08 0.12 164.41 161.29 2.99 <br />November- 0.05 0.08 159.10 161.34 -2.32 0.18 2.5 <br />04 <br />December- 0.03 0.06 164.41 161.83 2.52 <br />04 <br />January-OS 0.04 0.04 164.41 163.45 0.90 <br />Total 0.97 0.93 1463.75 1294.63 168.28 0.26 3.6 <br />Note: Estimated dewatering rate 1200 gallons per minute <br />1. Calculated evaporative depletions based on 0.5 acres of groundwaterexposed in the <br />dewatering trenches and sediment pond <br />2. Lagged evaporative depletions during 2004 and January 2005 <br />3. Dewatering discharge based on the dewatering rate of 1200 gallons per minute and <br />the numbers of days per month <br />4. Lagged depletions from the dewatering at the North Taft Hill Expansion site <br />5. Net accretion/depletion to the river (after evaporative and dewatering depletions) 3- <br />(4+2) <br />6. Transit loss of 7.8% based on 5% from the Chambers Reservoir to the mouth of the <br />Poudre Canyon and a loss of 2.8% from the canyon mouth to the North Taft Hill <br />Expansion site, calculated 0.25% per stream mile <br />7. Lease water required for the Tri-Districts for replacements 5+6 <br />