2010-06-04_HYDROLOGY - M1985218

• Permit No: M1985218
• IBM Index Class Name: HYDROLOGY
• Doc Date: 6/4/2010
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Applegate Group, Inc.
• Permit Index Doc Type: Hydrology Report
• Email Name: BMK
• Media Type: D
• Archive: No

Stream Depletion Analysis Using Stream Depletion Factors
Lafarge West, Inc.
Rich Pit, M-85-218
Mining Stream Depletions - 2/23/10
Freshwater Pond at Old Aggregate Sales Area Unused Wash Pond
Applegate
Stream Depletion Factor = 120 days Oroup. r..
Cumulative
Time
(months
Month Volume
Pumped
(ac-ft) Volume
Pumped
(ac-ft) Volume of
Depletion
(ac-ft Depletion
This Step
ac-ft) Stream
Depletions
(ac-ft)
1 Apr-08 0.15 0.152 0.009 0.0088
2 May-08 0.21 0.359 0.050 0.0408
3 Jun-08 0.26 0.621 0.123 0.0734
4 Jul-08 0.26 0.877 0.226 0.1025 Total Post Plan Depletions:
5 Aug-08 0.22 1.098 0.345 0.1190 Year 1
6 Sep-08 0.18 1.282 0.468 0.1231 1.46
7 Oct-08 0.12 1.406 0.586 0.1180 0.98
8 Nov-08 0.07 1.474 0,689 0.1038
9 Dec-08 0.05 1.526 0.776 0.0863
10 Jan-09 0.05 1.580 0.849 0.0734
11 Feb-09 0.06 1.644 0.915 0.0663
12 Mar-09 0.09 1.733 0.980 0.0649
13 Apr-09 0.15 1.885 1.052 0.0713
14 May-09 0.21 2.092 1.140 0.0879
15 Jun-09 0.26 2.354 1.250 0.1102
16 Jul-09 0.26 2.611 1.382 0.1327
17 Aug-09 0.22 2.831 1.527 0.1446 Year 2
18 Sep-09 0.18 3.015 1.672 0.1452
19 Oct-09 0.12 3.139 1.810 0.1375 1.30
20 Nov-09 0.07 3.207 1.931 0.1211
21 Dec-09 0.05 3.260 2.033 0.1019
22 Jan-10 0.05 3.313 2.120 0.0875
23 Feb-10 0.06 3.377 2.199 0.0792
_,n Ann 'I A.<'7 I'f7f nn7/.'f Nipadustate
25 Apr-10 0.15 3.618 2.358 0.0823 0.1116
26 May-10 0.21 3.825 2.456 0.0981 0.1278
27 Jun-10 0.26 4.087 2.576 0.1196 0.1501
28 Jul-10 0.26 4.344 2.717 0.1414 0.1728
29 Aug-10 0.22 4.564 2.870 0.1528 Year 3 0.1844 Year 2
30 Sep-10 0.18 4.748 3.023 0.1529 0.1840
31 Oct-10 0.12 4.872 3.168 0.1447 1.39 0.1749 1.73
32 Nov-10 0.07 4.941 3.296 0.1280 0.1567
33 Dec-10 0.05 4.993 3.404 0.1084 0.1354
34 Jan-11 0.05 5.046 3.498 0.0937 0.1194
35 Feb-11 0.06 5.110 3.583 0.0850 0.1098
36 Mar-11 0.09 5.200 3.665 0.0823 0.1065
37 Apr-11 J.LUV ?.I" V.Vioi
38 May-11 5.200 3.806 0.0623
39 Jun-11 5.200 3.857 0.0510
40 Jul-11 5.200 3.901 0.0436
41 Aug-11 5.200 3.939 0.0382
42 Sep-11 5.200 3.973 0.0341
43 Oct-11 5.200 4.004 0.0308
44 Nov-11 5.200 4.032 0.0281
45 Dec-11 5.200 4.058 0.0259
46 Jan-12 5.200 4.082 0.0239
47 Feb-12 5.200 4.104 0.0223
48 Mar-12 5.200 4.125 0.0208
Year 4
Rich Pit Unused Wash Pond
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