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Table 1 <br />Pueblo West Pit <br />Projected Depletion ?inalysis (February 2002 -January 2003) <br />Values in Acre-Feet Unless <br />Feb 73.3 0.15 10.70 0.02 1.03 ~ 0.0% 0.00 1.03 9.67 1.86 1.96 0.79 4.61 14.28 <br />Mar 73.3 0.23 16.81 0.04 1.62 2.9% 4.36 5,98 10.83 1.86 1.96 0.79 4.61 15.44 <br />Apr 73.3 038 27.51 0.06 2.65 6.5°!° 9.78 12.43 15.08 1.86 0.79 2.6i 17.73 <br />May 73.3 0.50 36.67 0.08 3.53 12.6% 18.96 22.49 14.19 1.86 0.79 2.65 16.84 <br />tun 73.3 0.60 44.31 0.09 4.26 19.0% 28.59 32.85 - 11.46 0.00 11.46 <br />Jul 73.3 0.63 45.84 0.10 4.41 22.6% 34.01 38.42 7.42 0.00 7.42 <br />Aug 73.3 0.56 41.26 0.09 3.97 18.7% 28.14 32.11 9.15 ~ 0.00 9.15 <br />Sep 73.3 0.42 30.56 0.06 2.94 ~ 11.6% 17.46 20.40 10.17 0.00 10.17 <br />Oct 73.3 0.29 21.39 0.04 ~ 2.06 b.l% 9.18 11.24 10.16 0.00 10.16 <br />Nov 73.3 0.17 12.22 0.03 1.18 0.0% 0.00 1.18 11.05 0.00 11.05 <br />Dec 73.3 0.13 9.17 0.02 0.88 0.0% 0.00 0.88 8.29 0.00 8.29 <br />1. tSased upon a total surface area of I U2.8 acres reduced by 29.E acres exposed prior to 1 Y8l (grantlIathered), see attachetl map for pontl areas. <br /> The 102.8 acres are based upon September 23, 1997 and Fall 1999 surveys completed by Mangini and Associates, Inc. <br />2. Gross Evaporation Rate equals 4.17 feet per year, based upon NOAA Evaporation Atlas. Monthly distribution based upon SB-120 Guidelines, consistent with the July 1990 SWSP, revised May 1994. <br />2a. Gross Evaporation equals (1) x (2). <br />3. Effective Precipitation Rate equals 70%oftotal precipitation, based upon Pueblo WSO AP weather station. <br />4. Effective Precipitation Credit equals (3) x 45.93 ,bused upon 45.93 acres of non-irrigated and non-phreatophy[e area. <br />5. Based upon original SWSP dated July 1990, revised May 1994, Table 8. <br />6. Equals 150.48 ac-ft multiplied by monthly percents in column (6). See Table 2 for calculation of 150.48 ac-ft phreatophyte credit. <br />7. Total natural vegetation credit equals (4) + (6). <br />8. Equals (2a)-(7). <br />9. Depletions due to Ready Mix production same as last year. Usage is metered at Well S 1316-F. Monthly rate is assumed constenl; however, actual monthly rate may vary as long <br /> as annual amount is not excaded. Transit Mix plans to discontinue botching at the West Site by the end of May. <br />10 . Annual production limited to 133,000 tons. Monthly rate is assumed constant however, actual monthly rate may <br /> vary as long as annual amount is not exceeded. Tranisit Mix plans to dicsontinue mining by the end of March. <br />11 . Depletions due to truck washing projected to be equal or less than last year. Usage is metered at wells 15980-F, 51609-F, 51317-F. <br /> Monthly rate is assumed constant; however, actual monthly rate may vary as long as the annual amount is not exceeded. <br />12 . Total Plant Depletion equals sum of (9), (10), and (11). <br />13 . Total Depletion equals (8) + (12). <br /> f_ <br /> ND ~ ~. <br />"" <br />Z <br /> >m <br />m <br />q s Q ~ <br />O <br /> ~~ ~ 1T7 <br /> ypN ~ <br />rn~ p Ill <br /> z~ ~ C? <br /> <br />