2020-08-28_HYDROLOGY - M2000041

• Permit No: M2000041
• IBM Index Class Name: Hydrology
• Doc Date: 8/28/2020
• Doc Name: Substitute Water Supply Plan
• From: DWR
• To: DRMS
• Email Name: JPL
• Media Type: D
• Archive: No

Table I
EVANS#2 PIT-OPERATIONAL AND EVAPORATIVE LOSSES
Stonewall Springs Quarry, LLC.
2020-2021 Plan Year
(1) (2} (3) (4) (5) (6) (7) (8) (9) 1101 (12)
Plan Year Amount of Water Lost Water Used Water Used Total Percent of Gross Pond Average Effective Net Pond Net Pond Net Pond
2019 Aggregate With Mined for Dust for Construction Operational Annual Evaporation Precipitation Precipitation Evaporation Evaporation Evaporation
Production Aggregate Control of Slurry Wall Losses Evaporation 70% 2.4 acres
Month (tons) (acre-feet) (acre-feet) (acre-feet) (acre-feet) (inches) (inches) (inches) (Inches) (acre-feeVacre.) (acre-feel,)
April-20 0 0.00 0,00 0.00 0.00 9.0% 4.52 1.26 0.88 3,64 0.30 0.74
May-20 0 0.00 100 0.00 0.00 12.0% 6.02 1.37 0,96 5.07 0.42 1.03
June-20 0 0.00 Ho 0.00 0.00 14.5% 7.28 1.65 1.16 6.12 0.51 1.24
�,duly-20 0 0.00 0.00 0.00 0.00 15.0% 7,53 2.38 1 V 5R 0-49 1.19
'August-20 0 0.00 0.00 0.00 0-00 13,5% 6.78 1.34 0,94 5.84 0.49 118
September-20 0 0.00 0.00 0.00 0.00 10.0% 5.02 0.87 0,81 4.41 0.37 0.89
October-20 0 0.00 0.00 0.00 0.00 7.0% 3,51 0.44 0.31 3.21 0.27 0.65
November-20 0 0.00 0,00 0.00 0.00 4.0% 2.01 0,40 0.28 1.73 0.14 0.35
December-20 0 0.00 0.00 0.00 0.00 3.0% 1.51 0.40 0,28 1,23 0.10 0.25
January-21 0 0.00 0.00 0,00 0.00 3.0% 1.51 0.32 0,22 1.28 0.11 0.26
February-21 0 0.00 0.00 0.00 0.00 3.5% 1,76 0.72 0.50 115 0.10 0.25
March-21 0 0.00 0,00 0.00 0.00 5.5% Z 76 1.46 1.02 1.74 0.14 0,35
Total 0.00 0.00 0.00 0.00 0.00 100.0% 50.20 12.61 8.83 41.37 3.45 8.38
Notes:
(11 No mining or dus:control use (7) Equals 50-2 inches from NWS 31 Map 3,times Column(6).
4",ID of produced aggregate production is assumed to be water,converted Ic acre-feet. (8) Based on climate data from Pueblo Memorial AP weather station(1981-2010).
(3)No mining or dust control use (9) Equals Column(8)times 70%.
(4)No use,linear certified June 2019- (10) Equals Column(7)minus Column(9).
(5) Equal sum of Columns(2),(3)&(4). (11) Equals Column(10)divided by 12.
(6)Based SEO information for elevations below 6.500 feet. (12) Equals Pond Surface Area times Column(.11
r7
27
Deere&Ault Consultants, Inc. 2020 Evans#2 SWSP Tables.xis