2014-01-28_HYDROLOGY - M2003091

• Permit No: M2003091
• IBM Index Class Name: HYDROLOGY
• Doc Date: 1/28/2014
• Doc Name: Comments
• From: Division of Water Resources
• To: Bishop-Brogden Assoociates
• Email Name: PSH
• Media Type: D
• Archive: No

Table 1
Martin Marietta Materials
Duckworth Pit and Del Camino Batch Plant
2013 -2014 Depletions
Date 10/1/2014
Notes:
(1) Equal to the exposed post -1981 surface area around the perimeter of the east side of the site and the silt ponds in the north west comer of the Duckworth property. The total surface area increases in
February due to new mining and the construction of additional dewatenng trenches.
(2) Total gross evaporation (40.0 inches) is based upon NOAA Technical Report NWS 33 and distributed according to SEO Senate Bill 89 -120 criteria:
November. 4.00% February: 3.50% May: 12.00% August: 13.50%
December- 3.00% March: 5 50% June: 14 50% September: 1000%
January: 3 00% April: 9.00% July: 15.00% October: 7.00%
(3) Average precipitation values calculated from the entire period of record (1983 -2004) of Longmont 2 NOAA station
(4) Assumed 70% effective precipitation.
(5) Equal to (2) - (4)
(6) Equal to (1) x (5)
(7) Evaporative depletions in (6) lagged using the Glover methodology in the IDS AWAS model using the parameters below.
Transmissivity- 35,000 gallons /day /foot
Specific Yield: 0.2
Aquifer Width: 8,800 feet
Distance from center of Duckworth property to river 4,400 feet
(8) and (9) Aggregate production from mining is based upon information from MMM Water removed with crushed mined aggregate equals 2% of total mined volume as defined by Senate Bill 89 -120. All
mined material under the SWSP is cruched and transported off -site for washing.
(10) Dust suppression is based upon monthly information received from MMM.
(11) Equal to (9) + (10)
(12) Lagging of aggregate production and dust suppression (I I ) based upon the factors shown in the note for (7)
(13) Equal to (12) + (7).
Evaporation Depictions
Production Depictions
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
i (9)
(10)
(11)
(12)
(13)
Net
Lagged Net
Aggregate
Total
Total
Gross
Effective
Net
Evaporation
Evaporation
Aggregate
Production
Dust
Production
Lagged
Total Lagged
Net Exposed
Evaporation
Precipitation
Precipitation
Evaporation
Volume
Depletions
Production
Consumption
Suppression (ac
Depletions
Production
Depletions
Month
Area (ac)
(ft)
(ft)
(ft)
(ft)
(ac -ft)
(ac -ft)
(tons)
(ac -ft)
ft)
(ac -ft)
Depletions
(ac -ft)
Nov -13
0.88
0.13
0 05
0.04
0.10
0.08
0.030
0
000
0.52
0.52
0.29
032
Dec -13
0.88
0 10
0 04
0.03
007
0.06
0 032
0
0.00
0.52
0.52
0.34
0.37
Jan -14
0.88
0 10
0.03
002
0.08
0.07
0.034
0
0.00
0.52
0 52
036
039
Feb -14
1.15
0.12
0.04
0.03
0.09
0.10
0.035
0
0.00
032
0.52
0.36
0.40
Mar -14
1.15
0.18
0.08
0.06
0.13
0.14
0.036
75,000
1.10
0.52
1 62
036
040
Apr -14
1.15
0.30
0 14
0.10
0.20
023
0 037
84,000
1.24
'0.52
1.76
036
040
May -14
1.15
040
0.20
0.14
0.26
0.30
0.040
83,000
1.22
0.52
1.74
0.38
042
Jun -14
1 15
0.48
0 14
0 10
0.38
0.44
0.045
88,000"
1.29
0.52,
1.81
042
0.46
Jul -14
1 15
0.50
0 11
0 08
042
049
0.052
98,000
1.44
0.52
1.96
0.46
051
Aug-14
1 15
0.45
0.10
0.07
0.38
044
0.063
83,000
1 22
0.52
1.74
0.50
0.56
Sep -14
1.15
0.33
0 10
0.07
0.26
0.30
0.076
88,000
1.29
0:52•
1.81
055
062
Oct -14
1 15
023
0.08
006
0.18
020
0.089
' i 0.
0.00
0.52
052
0.59
0.68
Total
3.33
1.13
079
2 55
2 86
057
599,000
8.81
6.24
15.05
4.97
5.53
Notes:
(1) Equal to the exposed post -1981 surface area around the perimeter of the east side of the site and the silt ponds in the north west comer of the Duckworth property. The total surface area increases in
February due to new mining and the construction of additional dewatenng trenches.
(2) Total gross evaporation (40.0 inches) is based upon NOAA Technical Report NWS 33 and distributed according to SEO Senate Bill 89 -120 criteria:
November. 4.00% February: 3.50% May: 12.00% August: 13.50%
December- 3.00% March: 5 50% June: 14 50% September: 1000%
January: 3 00% April: 9.00% July: 15.00% October: 7.00%
(3) Average precipitation values calculated from the entire period of record (1983 -2004) of Longmont 2 NOAA station
(4) Assumed 70% effective precipitation.
(5) Equal to (2) - (4)
(6) Equal to (1) x (5)
(7) Evaporative depletions in (6) lagged using the Glover methodology in the IDS AWAS model using the parameters below.
Transmissivity- 35,000 gallons /day /foot
Specific Yield: 0.2
Aquifer Width: 8,800 feet
Distance from center of Duckworth property to river 4,400 feet
(8) and (9) Aggregate production from mining is based upon information from MMM Water removed with crushed mined aggregate equals 2% of total mined volume as defined by Senate Bill 89 -120. All
mined material under the SWSP is cruched and transported off -site for washing.
(10) Dust suppression is based upon monthly information received from MMM.
(11) Equal to (9) + (10)
(12) Lagging of aggregate production and dust suppression (I I ) based upon the factors shown in the note for (7)
(13) Equal to (12) + (7).