2015-07-09_HYDROLOGY - M1977439

• Permit No: M1977439
• IBM Index Class Name: HYDROLOGY
• Doc Date: 7/9/2015
• Doc Name: Combined Substitute Water Supply Plan
• From: Div of Water Resources
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

Table 2
Martin Marietta
Home Office Pit
Evaporative and Operational Consumptive Use
Month
Percent of
Annual
Evaporation
A
Gross Lake
Evaporation
(ft)
B
Evaporative Consumptive Use
Effective Net Lake
Precipitation Precipitation Evaporation
(in) (ft) (acre-ft/acre)
C D E)
Net Exposed
Water Surface
(acre)
F
Total Lake
Evaporation
(acre-feet)
G
Operational
Water Used for
Dust Control
(acre-feet)
H
Total
Consumptive
Use
(acre-feet)
I
Total
Lagged
Depletions
(acre-feet)
J
Jan -15
3.0%
010
0.36
0.02
0.00
15.70
0.00
0.46
0.46
1.81
Feb -15
3.5%
0.11
0.48
0.03
0.00
1 15.70
0.00
0.54
0.54
1.49
Mar -15
5.5%
0.17
1.18
0.07
0.11
15.70
1.65
1.15
2.80
2.49
Apr- 15
9.0%
0.29
1.97
0.11
0.17
15.70
2.67
3.68
6.35
4.68
May- 15
12.0%
0.38
2.74
0.16
0.22
15.70
3.46
3.68
7.14
5.92
Jun -15
14.5%
0.46
1.83
0.11
0.35
15.70
5.53
1 5.37
10.90
8.25
Jul -15
15.0%
0.48
1.62
0.09
0.38
15.70
5.97
4.30
10.27
8.94
Aug- 15
13.5%
0.43
1.42
0.08
0.34
15.70
5.41
3.68
9.09
8.55
Sep-] 5
10.0%
0.32
1.27
0.07
0.24
15.70
3.81
2.30
6.11
6.94
Oct -15
7.0%
0.22
1.13
0.07
0.16
15.70
2.45
1.92
4.36
5.46
Nov -15
4.0%
0.13
0.59
0.03
0.09
15.70
1.45
1.92
3.37
4.45
Dec -15
1 3.0%
0.10
0.49
0.03
0.00
15.70
0.00
0.46
0.46
2.58
Total
1 100%
3.17
15.08
0.88
2.06
-
32.40
29.46
61.86
61.57
Gross Exposed Water Surface = 240.9 acres within current permit boundary
Pre -1981 Water Surface = 100.0 acres within current permit boundary; do not require augmentation
Covered by Greeley/Tri-Districts = 125.2 acres within permit boundary; augmented in Greeley/Tri-Districts SWSP
Net Exposed Water Surface = 15.7 acres within current and revised permit boundary
Annual Precipitation = 16.1 inches -Based on Western Regional Climate Center Fort Collins, CO Station (050035)
Gross Annual Evaporation = 38 inches -Taken from NOAA Technical Report NWS 33
Notes:
(A) Taken from General Guidelines for Substitute Water Supply Plans for Sand and Gravel Pits Submitted to The State Engineer.
(B) Gross lake evaporation = (A) *(Gross Annual Evaporation / 12).
(C) Estimated using annual precipitation and monthly distribution of precipitation from the Western Regional Climate Center - Fort Collins, CO (050035).
(D) Effective precipitation = 0.7*(C)/12.
(E) Net lake evaporation from exposed water surfaces = (B) - (D), there is no evaporation December - February due to below -freezing average monthly temperatures.
(F) Net exposed surface area; equals gross surface area minus pre -81 surface area.
(G) Total lake evaporation from exposed water surfaces = (E) * (F).
(H) Water used for dust control as specified by Martin Marietta.
(I) Column (E) + Column (F).
(J) Lagging values calculated using following parameters:
Distance from stream - 1000 ft, Transmissivity = 160,000 gpd/ft, Specific Yield = 0.2, No -flow Boundary = 6500 ft
.. . BBA