BOARD00272

• Board Meeting Date: 7/28/2003
• Description: Flood Section - Weather Modification Program
• Board Meetings - Doc Type: Memo

Summary of Seeding Programs by Western Weather Consultants

Tar2et Areas
Dillon Res. - 333 Sq. Mi. X 2.25"
Moffat Div. - 125 Sq. Mi. X 1.60"
Gr. Mtn. Res. -140 Sq. Mi. X 1.50"
Wm. Fk. Res. - 215 Sq. Mi. Xl.20"
S. Platte R/ Clr. Ck.- 750 Sq. Mi. X 1.12"
Gore Rg/Lwr Colo. R. - 175 Sq. Mi. X 1.85"
Est. of Total Water Increase -149.600AF

Denver Water Pro2ram
Nov. 1,2002 to April 7,2003 - 158 Days
40 Seeding Events - 85 Calendar Days
25,484.67 Seeding Hours

Total Area - 1,738 Sq. Mi.

Total Program Cost - $669,570

Upper Arkansas Pro2ram
Nov. 1,2002 to Mar. 24, 2003 - 144 Days
34 Seeding Events - 77 Calendar Days
6,979.5 Seeding Hours
Total Program Cost - $145,000

Tar2et Areas
Ark. Abv Nathrop - 550 Sq. Mi. X 1.10"
W. Slope Div. -150 Sq. Mi. X 1.60
Total Area - 700 Sq. Mi.
Est. of Total Water Increase - 45.300 AF

VaillBeaver Creek Pro2ram
Nov. 1,2002 to Feb. 1,2003 - 93 Days
21 Seeding Events - 47 Calendar Days
3,696.75 Seeding Hours
Total Program Cost - $167,010

Eastern San Juan Prog:ram
Nov. 1,2002 to Mar. 17,2003 - 137 Days
21 Seeding Events - 38 Calendar Days
3,203.83 Seeding Hours
Total Program Cost - $80,250

Central San Juan Proeram
Nov. 1,2002 to Apr. 7,2003 - 158 Days
27 Seeding Events - 49 Calendar Days
2,868.58 Seeding Hours
Total Area - 1,075 Sq. Mi.
Total Program Cost - $96,557

Western San Juan Pro2ram
Nov. 1,2002 to Feb. 14,2003 - 106 Days
18 Seeding Events - 37 Calendar Days
1,728.75 Seeding Hours
Total Program Cost - $64;481

Tareet Area
Eagle R. Abv. Avon - 250 Sq. Mi. X 2.65"

Est. of Total Water Increase - 35.300 AF

Tar2et Areas
Up. San Juan R. - 280 Sq. Mi. X 1.50"
Up. Piedra R. - 280 Sq. Mi. X 1.40"
Total area - 560 Sq. Mi.
Est. of Total Water Increase - 45.300 AF

Target Areas
Up. Animas R. - 650 Sq. Mi. X 1.35"
Up. LaPlata R. - 35 Sq. Mi. X 0.75"
Up. Florida R. - 90 Sq. Mi. X 1.00"
Up. Pine R. - 300 Sq. Mi. X 1.00"
Est. of Total Water Increase - 69,000AF

Tared Areas
Dolores R. - 400 Sq. Mi. X 0.7,0"
San Miguel R. - 200 Sq, Mi. X 0.75"
Total Area - 600 Sq. Mi.
Est. of Total Water Increase - 23.000AF

Total Seeding in Colorado - 43,962.08 Hours
Total area Seeded 4,373 Sq. Mi.
Estimated total Increase of Water in Snowpack - 367,500 AF