PERMFILE44840

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: WATER RIGHTS INVESTIGATION AND PLAN FOR AUGMENTATION
• Section_Exhibit Name: TAB 16 ATTACHMENT 16-1
• Media Type: D
• Archive: No

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Table 2
Lake Evaporation
Hayden, Colorado
Gross Lake
Evaporation Hayden
Precipitation Effective
Precipitation
Net Lake Eva oration
Month
1 (inches)
2 (inches)
3 (inches)
4 (inches)
5 (feet)
6
November 2.00 1.28 1.20 0.80 0.067
December 0 1.60 0 0 0
Janua 0 1.54 0 0 0
Februar 0 1.18 0 0 0
March 2.00 1.19 1.12 0.88 0.073
A ril 3.33 1.49 1.39 1.94 0.162
Ma 5.01 1.31 1.23 3.78 0.315
June 6.30 1.20 1.13 5.17 0.431
Jul 6.48 1.14 1.08 5.40 0.450
Au ust 5.55 1.46 1.36 4.19 0.349
Se tember 4.11 1.15 1.09 3.02 0.252
October 2.55 1.36 1.27 1.28 0.107
Total 37.33 15.90 10.87 26.46 2.206
Nov-A r 7.33 8.28 3.71 3.62 0.302
Ma -Oct 30.00 7.62 7.16 22.84 1.904

Column exp/anation:
2/ Annual and seasonal values were taken from "Evaporation Atlas for the Contiguous
48 United States. "published by the U. S. Department of Commerce in June 1982. The
annual and seasonal va/ues were distributed based on the monthly pan evaporation for
Grand Junction 6ESE as shown in "Mean Monthly, Seasonal, and Annual Pan Evaporation
for the United States, " published by the U. S. Department of Commerce in December 1982.
3J Average monthly values for 1951 through 1980, based on records published by the
U.S Department of Commerce.
4/ Based on a procedure developed by the U.S.Bureau of Reclamation: 95 percent of the first
inch of precipitation + 90 percent of the second inch.
5J Co/umn 2 -column 4.
61 Column 5 converted to feet.
P101, TABLES.WK4