2002-06-17_GENERAL DOCUMENTS - M1979097

• Permit No: M1979097
• IBM Index Class Name: General Documents
• Doc Date: 6/17/2002
• Doc Name: Substitute Supply Plan Renewal
• From: Applegate Group
• To: DMG
• Media Type: D
• Archive: No

Table No. 1
Western Mobile Northern Inc., Lafarge
East Rigden Pit
Substitute Supply Plan -Evaporative Losses

Month Percent of
Annual
Eva oration Gross Lake
Evaporation
(ft
Precipitation
in Effective
Precipitation
ft Net Lake
Evaporation
acre-ft/acre Total Lake
Evaporation
ac-ft
Jan 3.0% 0.10 0.39 0.02 0.07 4.90
Feb 3.5% 0.11 0.35 0.02 0.09 6.14
Mar 5.5% 0.18 1.04 0.06 0.12 7.77
A r 9.0% 0.29 1.66 0.10 0.20 12.85
Ma 12.0% 0.39 2.58 0.15 0.24 15.71
June 14.5% 0.47 2.03 0.12 0.35 23.15
Jul 15.0% 0.49 1.51 0.09 0.40 26.22
Au 13.5% 0.44 1.28 0.07 0.36 23.88
Set 10.0% 0.33 1.09 0.06 0.26 17.17
Oct 7,0% 0.23 1.03 0.06 0.17 10.98
Nov 4.0% 0.13 0.60 0.04 0.10 6.23
Dec 3.0% 0.10 0.39 0.02 0.08 4.92
Total 100% 3.3 13.92 0.8 2.4 159.9
Total Exposed Water Surface =
Pre- 1981 Exposed Surface =
Area Requiring Augmentation =
Annual Precipitation =
Gross Annual Evaporation =
90.6 acres -Taken from 2001 Aerial Photo
25.0 acres
65.6 acres
13.92 inches -Taken from the average of the W indsor and Fort Collins Weather Stations
39 inches -Taken from NOAA Technical Report NWS 33