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Table 1 <br /> Bernhardt Pit <br /> Evaporative and Operational Losses <br /> Percent of Gross Average Effective Net Net Water Surface <br /> Month Annual Evaporation Precipitation Precipitation Evaporation Evaporation for <br /> Evaporation 6.52 <br /> ('ndres) (vtdtes) inches) Inches) (we-ket) <br /> 111 121 (31 (41 I51 161 <br /> January 3 0% 132 040 028 103 056 <br /> February 3 5% 153 039 028 126 068 <br /> March 5 5% 241 1 10 077 165 089 <br /> April 9 0% 395 160 1 12 282 153 <br /> May 12 0% 526 251 176 350 190 <br /> June 14 5% 636 168 1 18 518 282 <br /> July 15 0% 658 1 11 0 77 580 3 15 <br /> August 13 5% 592 1 24 087 505 275 <br /> September 10 0% 439 124 087 351 191 <br /> October 7 0% 307 085 059 2 48 135 <br /> November 4 0% 175 068 047 128 070 <br /> December 3 0% 132 047 0 33 099 054 <br /> Total 100.0% 43.86 13.27 929 34.57 18.78 <br /> Percent of Amount of Water Lost Percent of Amount of Water Used Water Used Total <br /> Month Annual Aggregate With Mined Annual Concrete in Concrete for Dust Evaporative <br /> Aggregate Production Aggregate &Concrete Production Batching Control &Operational <br /> Production Production Losses <br /> (Ions) (aae-leti (ctbc yards) (acre-teat) (acre-leaf) (aae4eet) <br /> P1 181 (91 ro( I111 1121 1131 1141 <br /> January 0 0% 0 000 0 0% 0 000 000 056 <br /> February 0 0% 0 000 0 0% 0 000 000 068 <br /> March 0 0% 0 000 5 5% 550 007 037 133 <br /> April 104% 0 000 90% 900 Oil 037 201 <br /> May 14 4% 0 000 13 0% 1 300 016 037 243 <br /> June 179% 0 000 165% 1,650 020 037 339 <br /> July 194% 0 000 180% 1,800 022 037 374 <br /> August 16 4% 0 000 15 0% 1 500 018 037 330 <br /> September 12 4% 0 000 11 0% 1,100 014 037 242 <br /> October 9 4% 0 000 8 0% 800 010 037 182 <br /> November 0 0% 0 000 4 0% 400 005 037 112 <br /> December 0 0% 0 000 0 0% 0 000 0 00 054 <br /> Total 1 100.0% 0 0.00 100.0% 10,000 1.23 3.33 23.34 <br /> Notes <br /> Ill krom SB 120 ere evaporation percentages are for gravel pits w+th elevations below 6 500 feet <br /> [21'quals Peroenl of Annual Evaporation braes 43 86 inches <br /> (3)From Colorado Stale Unrvervy's Colorado Chmate Center web page hlq 1kcc amens coloslate edu for Longmont Weather Station <br /> (41 Equals Column(3)Ames 70 percent 70 percent value was taken from SB 120 <br /> (51 Equals Column(2)mans Column(4) If the resultant value is less than zero then a zero s substituted <br /> 161 Equals Column(5)di by 12 tunes 11 11 acres Inoludes Pond 1(4 97 az)Pond 2(5 43 ac)Processing 11(0 40 ac)and dewatenng trench(0 31 ac) <br /> M Based on information from Hall Irvin <br /> 81 Equals Column(7)hires 400 000 tons per year Production based or,mformabon from Hall Ingm This is production from the 22 saes wing operation <br /> 191 Equals Column(2)Ames 2000 bores 4%dvided by 62 4 divided by 43 550 <br /> (101 Based on mfomahon from Hall-Irwin <br /> ill)Equals Column(101 hmes 10 000 cy per year Production based on information from Had Irvin <br /> 1121 Equals Column(11)times 40 gallons divided by 325851 Assume a use of 40 gahws per cabs yard of concrete production <br /> (131 Equals 6000 gallons per day times number of operating days(20 days)in Ins month divided by 325851 dung production months(March era November) <br /> 1141 Equals Column(6)plus Column(9) <br /> BERN SWSP2014 AS Civil Resources,LLC,923/2013 <br />