7313

• UCREFRP Catalog Number: 7313
• Author: Upper Colorado River Commission.
• Title: Forty-Second Annual Report of the Upper Colorado River Commission
• USFW Year: 1990.
• USFW - Doc Type: Colorado River Storage Project and Participating Projects.
• Copyright Material: NO

Table 3
ESTIMATED VIRGIN FLOW AT LEE FERRY
(million acre-feet)
Il) (2) (3) (4) (5) (6) (7)
Progressive Virgin
Years Year Estimated Average Average 10-year Flow Minus
to Ending Virgin to Since Moving 95-year
1990 Sept. 30 Flow 1990 1896 Averaae Averaae
45 46 10.4 14.1 15.6 14.0 -4.5
44 47 15.5 14.2 15.6 14.2 0.6
43 48 15.6 14.1 15.6 14.0 0.7
42 49 16.4 14.1 15.6 14.5 1.5
41 1950 12.9 14.1 15.6 15.0 -2.0
40 51 11.6 14.1 15.5 14.3 -3.3
39 52 20.7 14.1 15.6 14.5 5.8
38 53 10.6 14.0 15.5 14.2 -4.3
37 54 7.7 14.1 15.4 13.5 -7.2
36 55 9.2 14.2 15.3 13.1 -5.7
35 56 10.7 14.4 15.2 13.1 -4.2
34 57 20.1 14.5 15.3 13.6 5.2
33 58 16.5 14.3 15.3 13.6 1.6
32 59 8.6 14.3 15.2 12.9 -6.3
31 1960 11.3 14.4 15.1 12.7 -3.6
30 61 8.5 14.5 15.0 12.4 -6.4
29 62 17.3 14.8 15.0 12.1 2.4
28 63 8.4 14.7 15.0 11.8 -6.5
27 64 10.2 14.9 14.9 12.1 -4.7
26 65 18.9 15.1 14.9 13.1 4.0
25 66 11.2 14.9 14.9 13.1 -3.7
24 67 11.9 15.1 14.8 12.3 -3.0
23 68 13.7 15.2 14.8 12.0 -1.2
22 69 14.4 15.3 14.8 12.6 -0.5
21 1970 15.4 15.3 14.8 13.0 0.5
20 71 15.1 15.3 14.8 13.7 0.2
19 72 12.2 15.3 14.8 13.1 -2.7
18 73 19.4 15.5 14.9 14.2 4.5
17 74 13.3 15.3 14.8 14.6 -1.6
16 75 16.6 15.4 14.9 14.3 1.7
15 76 11.6 15.3 14.8 14.4 -3.3
14 T7 5.8 15.6 14.7 13.8 -9.1
13 78 15.2 16.3 14.7 13.9 0.3
12 79 17.9 16.4 14.8 14.3 3.0
11 1980 17.5 16.3 14.8 14.5 2.6
10 81 8.2 16.2 14.7 13.8 -6.7
9 82 16.2 17.1 14.7 14.2 1.3
8 83 24.0 17.2 14.8 14.6 9.1
7 84 24.5 16.2 14.9 15.8 9.6
6 85 20.8 14.8 15.0 16.2 5.9
5 86 21.9 13.6 15.1 17.2 7.0
4 87 16.9 11.6 15.1 18.3 2.0
3 88 11.6 9.8 15.1 18.0 -3.3
2 89 9.2 8.9 15.0 17.1 -5.7
I 1990 8.5 8.5 14.9 16.2 -6.4
Ma'!irnwn 24.5 18.8 9.6
Minirnwn 5.6 11.8 -9.3
Average 14.9 15.0 D.O

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