2012-04-30_HYDROLOGY - M1986015

• Permit No: M1986015
• IBM Index Class Name: HYDROLOGY
• Doc Date: 4/30/2012
• Doc Name: SWSP
• From: OSE
• To: Bishop-Brogden Associates, Inc.
• Permit Index Doc Type: Hydrology Report
• Email Name: TC1
• Media Type: D
• Archive: No

Month
Surface Area
of Exposed
Ground Water
(ac)
[1]
Gross
Evaporation
Rate (ft)
[2]
Total
Gross
Evaporation
(ac -ft)
[3)
Natural Vegetation Credit
Pond
Evaporation
Replacement
Requirement (ac -ft)
[9]
Aggregate
Moisture
Content Depletion
(ac -ft)
[10)
Dust Control
(ac -ft)
[11]
Total
Replacement
Requirement
(ac -ft)
[12)
Effective
Precipitation
Rate (ft)
[4)
Effective
Precipitation
Credit (ac -ft)
[5]
Phreatophyte
CU
Distribution
[6]
Phreatophyte
Reduction
Credit (ac -ft)
[7]
Total Natural
Vegetation
Credit (ac -ft)
[8]
Feb -12
19 7
0 15
2 96
0 02
0 19
0 0%
0 00
0 19
2 76
1 77
1 48
6.01
Mar -12
19 7
0 23
4 53
0 05
0 53
1 9%
0 56
1 09
3 44
2 35
1 48
7.28
Apr -12
19 7
0 38
7 49
0.07
0 78
10 9%
3.27
4 05
3.44
2.35
1 48
7.28
May -12
19 7
0 50
9.85
0 09
0 95
14 4%
4 30
5 25
4.60
2 35
1 48
844
Jun -12
197
060
1182
0.08
085
172%
516
601
5.81
294
220
1095
Jul -12
19 7
0 63
12 41
0 11
1 27
18 1%
5 42
6 69
5.72
2 94
2 20
10.87
Aug -12
19 7
0 56
11 03
0.12
1 37
16.1%
4 82
6 19
4.84
2 94
2 20
9.99
Sep -12
197
042
827
005
052
121%
361
414
4.14
294
220
928
Oct -12
197
029
571
004
050
83°6
249
299
272
294
220
786
Nov -12
197
017
335
003
030
1 1 °%
034
065
2.70
235
148
654
Dec -12
19 7
0.13
2 56
0.02
0 22
0 0 °6
0 00
0 22
2.34
1 77
1 48
5.59
Jan -13
19.7
0 13
2 56
0 02
0.20
0 0° 6
0 00
0 20
2 36
1 77
1 48
5.61
Feb -13
197
015
296
002
019
00 °°
000
019
276
177
148
601
Mar -13
19 7
0 23
4 53
0 05
0 53
1 9° 0
0 56
1 09
3 44
2 35
1 48
7 28
Apr -13
197
038
7.49
0.07
078
10 9%
327
405
344
235
148
728
May -13
19 7
0 50
9.85
0 09
0 95
14 4%
4 30
5 25
4.60
2 35
1 48
8.44
Jun -13
19 7
0 60
1 1 82
0 08
0 85
172°/o
5 16
6 01
5 81
2 94
2 20
10 95
Jul -13
19 7
0 63
12 41
0 11
1 27
18 1%
5 42
6 69
5 72
2 94
2 20
10.87
Aug -13
19.7
0 56
1 1 03
0 12
1 37
16 1%
4 82
6 19
4.84
2 94
2 20
9.99
Sep -13
19.7
0 42
8 27
0 05
0 52
12.1%
3 61
4 14
4.14
2 94
2 20
9 28
Oct -13
19.7
0 29
5 71
0 04
0 50
8 3 °-%
2 49
2 99
2 72
2 94
2.20
7 86
Nov -13
19.7
0.17
3 35
0 03
0 30
1 1%
0 34
0 65
2 70
2 35
1 48
6 54
Dec -13
19 7
0 13
2 56
0 02
0 22
0 0%
0.00
0 22
2 34
1 77
1 48
5.59
Jan -14
19.7
013
256
002
020
0 0%
000
020
236
177
148
5.61
2012 Total
4 17
82 5
0 69
7 7
100%
30 0
37 7
44 9
29 4
21.4
95 7
2013 Total
4 17
82.5
0 69
7 7
100%
30 0
37.7
44 9
29 4
21.4
95 7
[1] The Pueblo East Pit has approximately 19 7 acres of exposed water surface arca in Phases 1,2 and 7
[2] Gross Evaporation Rate equals 4 17 feet per year, based upon NOAA Evaporation Atlas Monthly disti ibution based upon SB -120 Guidelines
[3] Gross Evaporation equals [1] x [2]
[4] Effective Precipitation Rate equals 70% of total precipitation, based upon NOAA Pueblo Memorial Airport weather station
[5] Effective Precipitation Credit equals sum of column [5] in Tables 1 -3.
[6] Phreatophyte CU distnbution equal to monthly phreatophytc reduction credit divided by thc total annual phreatophytc reduction credit
[7] Phreatophyte Reduction Credit equals the sum of column [7] in Tables 1 -3.
[8] Total natural vegetation credit equals [5] + [7].
[9] Pond Evaporation Replacement Requirement equals [3] - [8]
[10] Annual production limited to 1,000,000 tons, or 29 4 ac -ft of depletions from 4% water content by weight of the muted aggregate remo\ ed fiom Phase 7 The monthly distribution is based upon past operating patterns The
actual monthly rate may vary as long as the annual amount is not exceeded If mining occurs in Phase 2 during thc pcnod of this SWSP, water loss will be calculated based upon 4% water content by weight
[11] Dust control depletions arc assumed to be 100% consumptive and arc based upon past maximum seasonal dust control pumping volumes
[12] Total replacement requirement equals pond evaporation depletion plus water loss with aggregate removal and dust control [9] + [10] + [1!]
Table 4
Transit Mix of Pueblo, Inc. - East Pit Summary
Projected Depletion Analysis (February 2012 - January 2014)
BBA
B /,fHCI !'-172(JL UtN /l ��lll /Allot fnl
11 ,9107 - rvnnl 311307 - Pueblo l .0SN SP Openrnns 2012 -2013 S WSPIS WSP 2012 -2013 xbv
Pooled On 2/2912012 P113