2009-06-05_HYDROLOGY - M1985218

• Permit No: M1985218
• IBM Index Class Name: HYDROLOGY
• Doc Date: 6/5/2009
• 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 - 1/27/09
Freshwater Pond at Old Aggregate Sales Area Unused Wash Pond
Stream Depletion Factor = 120 days Applegate
Group,,-

Cumulative
Volume
Volume
Volume of ---1
Depletion ? U1u111C Ul
Stream
Time Mouth Pumped Pumped Depletion This Step Depletions
(months) (ac-ft) (ac-ft) (ac-ft) (ac-ft) (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
5 Aug-08 0.22 1.098 0,345 0.1190 Year 1
6 Sep-08 0.18 1.282 0.468 0.1231
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 Steady state
13 Apr-09 0
15 1
885 1
. . .052 0.0713 0
1116
14 May-09 0.21 2.092 1.140 0.0879 .
0
1278
15 Jun-09 0.26 2.354 1.250 0.1102 .
0
1501
16 Jul-09 0.26 2.611 1.382 0.1327 .
0
1728
17 Aug-09 0.22 2.831 1.527 0.1446 Year 2 .
0
1844
18 Sep-09 0.18 3.015 1.672 0.1452 .
0
1840
19 0ct-09 0.12 3.139 1.810 0.1375 1
30 .
0
1749
20 Nov-09 0.07 3.207 1.931 0.1211 . .
0
1567
21 Dec-09 0.05 3.260 2.033 0.1019 .
0
1354
22 Jan-10 0.05 3.313 2.120 0.0875 .
0
1194
23 Feb-10 0.06 3.377 2.199 0.0792 .
0
1098
24 Mar-10 0.09 3.467 2.276 0.0767 .
0
1065
25 Apr-10 0
15 3
618 .
. . 2.358 0.0823
26 May-10 0.21 3.825 2.456 0.0981
27 Jun-10 0.26 4.087 2.576 0.1196
28 Jul-10 0.26 4.344 2.717 0.1414
29 Aug-10 0.22 4.564 2.870 0.1528 Year 3
30 Sep-10 0.18 4.748 3.023 0.1529
31 Oct-10 0.12 4.872 3.168 0.1447 1
39
32 Nov-10 0.07 4.941 3.296 0.1280 .
33 Dec-10 0.05 4.993 3.404 0.1084
34 Jan-11 0.05 5.046 3.498 0.0937
35 Feb-11 0.06 5.110 3.583 0.0850
36 Mar-11 0.09 5.200 3.665 0
0823
37 Apr-11 0.15 5.352 3.753 .
0.0876
38 May-11 0.21 5.559 3.856 0.1031
39 Jun-11 0.26 5.821 3.980 0.1244
40 Jul-11 0.26 6.077 4.127 0.1461
41 Aug-11 0.22 6.298 4.284 0.1573 Year 4
42 Sep-11 0.18 6.482 4.441 0.1572
43 Oct-11 0.12 6.606 4.590 0.1488 1
44
44 Nov-11 0.07 6,674 4.722 0.1320 .
45 Dec-11 0.05 6.726 4.834 0.1122
46 Jan-12 0.05 6.780 4.931 0.0974
47 Feb-12 0.06 6.844 5.020 0.0886
48 Mar-12 0.09 6.933 5.106 0.0857
Year 2
1.4
Rich Pit Unused Wash Pond
page 1 of 3