2009-04-01_HYDROLOGY - M2004078

• Permit No: M2004078
• IBM Index Class Name: HYDROLOGY
• Doc Date: 4/1/2009
• Doc Name: Combined Replacement Plan
• From: OSE
• To: Applegate Group, Inc.
• Permit Index Doc Type: Hydrology Report
• Email Name: ECS
• Media Type: D
• Archive: No

Table No. 2 Updated
Lafarge West, Inc.
Combined South Platte River Substitute Supply Plan
Combined South Platte River Water Balance & Replacement Requirements

Month Total
Lagged
Mining
Depletions
(acre-feet)
A
Dewatering
Lagged
Depletions
(acre-feet)
(13)
Transit
Losses

(acre-feet)
(C)
Required
Replacements

(acre-feet)
(D Actual
Requested
Aurora
Lease
(acre-feet)
E
Nov-08 16.93 8:46 1.27 26.66 26.67
Dec-08 14.17 6.97 1.06 22.20 22.21
Jan-09 12.35 5.91 0.91 19.17 - 19.18
Feb-09 10.43 5.05 0.77 16.25 16.26
Mar-091 10.68 4.32 0.75 15.75 15.75
Apr-09 10.51 3.71 0.71 14.93 14.93
May-09 11.36 3.18 0.73 15.26 15.27
Jun-09 12.00 2.73 0.74 15.46 15.47
Jul-09 13.27 2.34 0.78 16.39 16.40
Aug-09 13.68 2.01 0.78 16.47 16.48
Sep-09 13.10 1.72 0.74 15.56 15.57
Oct-09 12.59 1.48 0.70 14.77 14.77
Total 151.1 47.9 9.9 208.9 208.9
(A) Total mining depletions from the mining sites. See Table No. 1.
(B) Impacts from dewatering Lupton Lakes from May-08 to Sep-08
(C) Transit losses of 5% from Metro WWTP to sites, (A+B)*0.05
(D) Required replacements, (A+B+C)
(E) Actual requested Aurora lease schedule submitted in email to Ioana dated 3/10/09
Applegate
Group, Inc.
Prepared By: SWS '
C:\Documents and Settings\idc\Local Settings\Temporary Intemet Files\Content.Outlook\82XZGU42\South Platte SWSP UPDATED WATER BALANCE with dewatering 03 10 09 August 2008