2025-03-14_PERMIT FILE - M2025016 (13)

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// PAGE 3 EXHIBIT G Raptor Materials, LLC Cogburn Sand, Gravel, and Reservoir Project February 2025 A Regular Impact (112) Construction Permit Application – Colorado Division of Reclamation Mining and Safety, Office of Mined Land Reclamation Table 1. Project Water Requirements After the water table is encountered, the water removed with the estimated 800,000 tons of product is 23.54 acre-feet per year. At the maximum potentially exposed ground water of 52.95± acres, the annual evaporation is 139.85± acre-feet. The monthly distribution of these estimates is shown in the following table. The reclamation plan provides that the pits will be lined after being mined. The lined pits will not require replacement water and will be used for storage. There may be incidental demand for water to establish vegetation on the site after lining is completed. However, the ultimate demand for water will be zero. Table 2. Water Availability MONTH PRODUCT (9.59 GAL. WATER/TON) DUST CONTROL NET EVAPOATION Tons Af Trucks af ac x %ev af November 40,000 1.18 30 0.28 52.95 0.104 5.51 December 36,000 1.06 18 0.16 52.95 0.000 0.00 January 36,000 1.06 18 0.16 52.95 0.000 0.00 February 62,000 1.82 16 0.15 52.95 0.113 5.98 March 85,000 2.50 34 0.31 52.95 0.138 7.31 April 92,000 2.71 48 0.44 52.95 0.221 11.70 May 93,000 2.74 70 0.64 52.95 0.288 15.25 June 90,000 2.65 240 2.21 52.95 0.413 21.87 July 85,000 2.50 250 2.30 52.95 0.453 23.99 August 79,000 2.29 270 2.48 52.95 0.418 22.13 September 62,000 1.82 105 0.97 52.95 0.294 15.57 October 40,000 1.18 57 0.52 52.95 0.199 10.54 * not including Sundays & Holidays 3,000 gallons per Truck Dust Suppression Month Active Hot Freezing Rainy Snowy # Days # Trucks Total Trucks # gallons total gallons Total Acre Feet Days* Days Days Days Days per day per month per Month per year January 25 0 31 4 3 39 18 1 18 54,000 0.16 February 23 0 27 4 3 34 16 1 16 48,000 0.15 March 28 0 26 6 4 36 17 2 34 102,000 0.31 April 26 0 14 8 2 24 16 3 48 144,000 0.44 May 25 1 2 10 0 9 14 5 70 210,000 0.64 June 26 7 0 9 0 2 24 10 240 720,000 2.21 July 25 16 0 7 0 -9 25 10 250 750,000 2.3 August 27 12 0 8 0 -4 27 10 270 810,000 2.48 September 25 4 1 7 0 4 21 5 105 315,000 0.97 October 25 0 13 5 1 19 19 3 57 171,000 0.52 November 23 0 26 5 3 34 15 2 30 90,000 0.28 December 25 0 31 4 3 38 18 1 18 54,000 0.16 303 40 171 77 19 226 230 1156 Annually 3,468,000 10.6 Acre Feet 1040 Trucks Apr - Oct =3,120,000 90% or 9.6 Acre Feet