2021-06-01_HYDROLOGY - M2004031

• Permit No: M2004031
• IBM Index Class Name: Hydrology
• Doc Date: 6/1/2021
• Doc Name: Substitute Water Supply Plan
• From: DWR
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

Aggregate Industries, Inc.
site: Irwin-Thomas Pit(WDID 0505626) Saint Vrain Creek Basin Accounting ek Basin Accounting
On-site Total On-Site Lagged
Average Pumped for Dewatering Net Depletion
Dewatering Dewatering impact the Monthly Exposed Water Evaporative Aggregate Water Retained Water Used Consumptive Lagged Dewatering or Accretion
Rate(gpm) (ac-ft) River Net Evaporation Surface Area Losses Production in Product For Dust Control Use Depletion Depletions
Year Month (feet) (acres) acre-feet) (tons) (acre-feet (acre-feet acre-feet) (acre-feet) (ac-ft) () {ac-ft)
2020 Jan-20 0 0.00 No 0.08 2.5 0.20 0 0.00 0.00 0.20 -0.01 0.00 -0.01
Feb-20 06 0.00 No 0.09 2.5 0.23 0 0.00 0.00 0.23 -0.06 0.00 -0.06
Mar-20 0 0.00 No 0.13 2.5 0.33 0 0.00 0.00 0.33 -0.09 0.00 -0.09
A r-20 0 0.00 No 0.20 2.5 0.50 0 0.00 0.00 0.50 -0.14 0.00 -0.14
May-20 0 0.00 No 0.25 2.5 0.63 0 0.00 0.00 0.63 -0.21 0.00 -0.21
Jun-20 0 0.00 No 0.38 2.5 0.95 0 0.00 0.00 0.95 -0.30 0.00 -0.30
Jut-20 0 0.00 No 0.44 Z5 1.10 0 0.00 0.00 1.10 -0.42 0.00 -0.42
Au -20 0 0.00 No 0.38 2.5 0.95 0 0.00 0.00 0.95 -0.51 0.00 -0.51
Se -20 0 0.Q0 No 0.26 2.5 0.65 0 0.00 0.00 0.65 -0.53 0.00 -0.53
Oct-20 0 0.00 No 0.18 2.5 0.45 0 0.00 0.00 0.45 -0.48 0.00 -0.48
Nov-20 0 0.00 No 0.10 2 5 0.25 14,2f 0.42 0.74 -0.45 0.00 -0.45
Dec-20 0 0.00 No 0.08 5 0.20 14286 0.42 0.04 0.66 -0.48 0.00 -0.48
Totals 6A3 28,571 0.84 0.10 7.37 -3,70 0.00 -3.70
2021 Jan-21 0 0.00 No 0.08 2,5 0.20 7
0.00 0.20 -0.46 0.00 -0.46
Feb-21 0.00 No 0.09 11,5 0.23 1 0.00 .=;)0 0.23 -0.38 0.00 -0.38
Mar-21 0.00 No 0.13 0.33 1 4.286 0.42 v z7 0.81 -0.38 0.00 -0.38
r-21 0 QAO No 0.20 2.5 0.50 14,286 0.42 0.10 1.02 -0.49 0.00 -0.49
Ma-21 0 0.00 No 0.25 25 0.63 14,286 QA2 0.12 1.16 -0.60 0.00 -0.60
Jun-21 11O.QO No 0.38 - ' 0.95 4.2 QA2 - 1.49 -0.71 0DO -0.71
Jul-21 v 0.00 No 0.44 25 1.10 4,2els 0.42 0. 1.64 -0.85 0.00 -0.85
Au -21 0.00 No 0.38 2.5 0.95 4.286 0.42 1 1.49 -0.95 0.00 -0.95
Sep-21 0 0.00 No 0.26 0.65 14,286 0.42 CI12 1.19 -0.97 0.00 -0.97
Oct-21 0 0.00 No 0.18 2,5 0.45 I-286 0.42 0 07 0.94 -0.93 0.00 -0.93
Nov-21 0 0.00 No 0.10 2.5 025 '"286 QA2 0,07 0.74 -0.86 0.00 -0.86
Dec-21 0.00 No 0.08 2 5 0.20 14.286 0.42 0,04 0.66 -0.79 0.00 -0.79
Totals 6A3 142,857 4.20 0.91 11.53 -8.37 0.00 -8.37