2013-10-22_HYDROLOGY - M1977436

• Permit No: M1977436
• IBM Index Class Name: HYDROLOGY
• Doc Date: 10/22/2013
• Doc Name: SWSP
• From: OSE
• To: Bishop-Brogden Associates, Inc.
• Permit Index Doc Type: Hydrology Report
• Email Name: TAK
• Media Type: D
• Archive: No

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Table IA.
Really Nlixed Concrete Company - Bromley Lakes Site and North Tower Pit
Depletion Analysis (November 2013 - December 2015)
Proposed SWSP Operations
(all values in acre-feet unless specified)
Notes
11) Total surface area of exposed ground water in Bromley Lakes Cell 2, Cell 3, and Lot I and North Tower Pit is conservatively projected to be 48 9 acres (20 6 acres at
Bromley Lakes Cell 2, 0 3 acres at Bromley Lakes Cell 3 and Lot 1, and 28 acres at North Tower Pit)
(2) Gross evaporation rate equals 44 52 inches (3 71 e) per year, based upon NOAA Evaporation Atlas Monthly distribution based upon SB -120 Guidelines
[3) Effective precipitation rate equals 70Qo of total precipitation, based upon average precipitation at the Brighton weather station
[4) Net evaporation equals [2] - (31
[51 Historical ET credits at the North Tower Pit from 7 4 acres of pasture gross using ground water at a depth of 4 feet (does not include an effective precipitation credit)
[61 Net evaporation equals the net evaporation volume minus the historical ET credits, 11 ] ,x 14J 12.151
(71 Production within a slurry wall lined pit (i a Ce113 Lot I or KML I) and outside of a slurry wall lined pit Since the exact timing of production within the slurry wall
lined pit is not known, projections conservatively show all production outside of a slurry wall lined pit
[81 Wash water and aggregate moisture content equals 21. by weight for gravel mined within a slurry wall lined pit and 40o by weight for gravel mined outside a slurry wall
lined pit
[91 Total evaporation and gravel mining depletion equals [61 . [8]
1101 Lagged site depletion equals the Bromley Lakes Cell 2, Cell 3, and Lot I and North Tower Pit evaporation and gravel depletion in column 191 lagged over 12 months
plus depletions from previous lagging patterns
rAL- BBA
Bromley Lakes Cell 2, Cell 3 and Lot I
& North Tower Pit
Exposed
Gross
Effective
Net
Historical
Net
Gravel Production
Aggregate
Total
Ground
Water Area
Evaporation
Rate
Precipitation
Rate
Evaporation
Rate
North
Tower Pit
Evaporation
Within
Lined Pit
Outside
Lined Pit
Moisture
Content
Evap and
Gravel
Lagged
Depletion
(acres)
(inches)
(inches)
(inches)
ET Credits
(tons)
(tons)
Depletion
Depletion
Month
111
[21
3
4
5
6 1
[71
181
9
10
Nov
48.9
1.78
0.6
I ?
0.0
4.7
0
0
0
4.7
12.2
Dec 2013
48.9
1.34
03
I 1
0
4.4
0
0
0
4.4
8.8 "
Jan 2014
48.9
1.34
0.4
1 0
0
4.0
0
0
0
4.0
75
Feb
48.9
1 5
0.3
1.3
0
51
0
U
0
5.1
73
Mar
48,9
2.45
0.8
1.6
0.0
6 5
0
0
0
6.5
7.7
Apr
48.9
4.01
1.2
18
0.1
11.4
0
140,000
4.1
15.5
11.8
May
46.9
5 34
16
3.8
02
15.2
0
140,000
4.1
19.3
15.6
Jun
48.9
6,46
1.1
5.3
05
21.2
0
140,000
4 1
25.3
19.7
Jul
48.9
6.68
1.1
5.6
0.7
22.1
0
160,000
4.7
261
22.5
Aug
48.9
6.01
1 2
4.8
0.6
18.8
U
160,000
4.7
215
211
Sep
48.9
4.45
0.9
3.6
0.4
14.1
U
160,000
4.7
18.8
19.7
Oct
48.9
3.12
0.5
2.6
0.2
10.5
0
140,000
4.1
14.6
161
Nov
48.9
1.78
0.6
1.2
0.0
4.7
0
0
0
47
11.2
Dec 2014
48.9
1.34
03
1.1
0
44
0
0
0
4.4
8.2
Jan 2015
48.9
1.34
0.4
1.0
0
40
0
0
0
4.0
7.1
Feb
48.9
1.56
0.3
13
0
5.1
0
0
0
5.1
7A
Mar
48.9
245
0.8
L6
0.0
6.5
0
0
0
6.5
7.5
Apr
489
4.01
1.2
2.8
01
11A
0
0
0
114
9.7
May
48.9
5.34
1.6
3.8
02
151
0
0
0
15?
12.5
Jun
48.9
6.46
1.1
5.3
0.5
21.2
0
0
0
211
16.3
Jul
48.9
6.68
1.1
5.6
07
32.1
0
0
0
22.1
18.6
Aug
489
6.01
1.2
4.8
(16
18.8
0
0
0
18.8
18.0
Sep
489
4.45
0.9
3.6
0.4
14.1
0
0
0
14.1
155
Oct
48.9
3.12
0.5
2.6
0.2
10.5
0
0
0
10.5
12.8
Nov
48,9
1.78
0.6
1,2
0.0
4.7
0
0
0
4.7
91
Dec 2015
48.9
1.34
0.3
1.1
0
4.4
0
0
0
44
7,1
Novl3 -Ju114 Total
-
30.94
7.3
23.6
1.7
94.5
0
580,00
17.1
111.6
113.2
?014 -2015 Total
44.52
10.0
34.5
2 8
137.9
0
460,000
13.5
151.4
1561
Au E -Dec 2015 Total
1
16.70
3.5
13.2
1 2
52.5
U
0
0
515
62.4
Notes
11) Total surface area of exposed ground water in Bromley Lakes Cell 2, Cell 3, and Lot I and North Tower Pit is conservatively projected to be 48 9 acres (20 6 acres at
Bromley Lakes Cell 2, 0 3 acres at Bromley Lakes Cell 3 and Lot 1, and 28 acres at North Tower Pit)
(2) Gross evaporation rate equals 44 52 inches (3 71 e) per year, based upon NOAA Evaporation Atlas Monthly distribution based upon SB -120 Guidelines
[3) Effective precipitation rate equals 70Qo of total precipitation, based upon average precipitation at the Brighton weather station
[4) Net evaporation equals [2] - (31
[51 Historical ET credits at the North Tower Pit from 7 4 acres of pasture gross using ground water at a depth of 4 feet (does not include an effective precipitation credit)
[61 Net evaporation equals the net evaporation volume minus the historical ET credits, 11 ] ,x 14J 12.151
(71 Production within a slurry wall lined pit (i a Ce113 Lot I or KML I) and outside of a slurry wall lined pit Since the exact timing of production within the slurry wall
lined pit is not known, projections conservatively show all production outside of a slurry wall lined pit
[81 Wash water and aggregate moisture content equals 21. by weight for gravel mined within a slurry wall lined pit and 40o by weight for gravel mined outside a slurry wall
lined pit
[91 Total evaporation and gravel mining depletion equals [61 . [8]
1101 Lagged site depletion equals the Bromley Lakes Cell 2, Cell 3, and Lot I and North Tower Pit evaporation and gravel depletion in column 191 lagged over 12 months
plus depletions from previous lagging patterns
rAL- BBA