Cumulative Effect Report on Plan for Future Depletions ‎(2)‎

• File Number: 8461.250
• Description: Water Issues
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 3/31/2007
• Author: Ted Kowalski, Alan Berryman
• Title: Cumulative Effect Report on Plan for Future Depletions
• Water Supply Pro - Doc Type: Board Memo

FIGURE 2: -
River Call Analvsis for Adiustment of % Water Supplv for Native S. Platte Flow Development ?
I
Colorado's Future Depletion Model for PRRIP
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% of days in a month that a July 1, 1997 priority is Out of Priority (OP) at Kersey (Malysis of daily calls) ?
r Ma Jun Jul ? - I -
2006 100% 100% 100% 100% + i
2005 97% 100% 40°/a 100%
2004 100% 100°/a 100% 100%
2003 100°/a 100% 96°/a 100%
2002 42% 100°/a 100% 100°/a

2001
0%
34%
53°/a
84% ?
2000 0% 70% 100% 100%
1999 71% 0°/a 0°/a 58°/a
1998 0% 0°/a 0% 58% -- - -
Avg 98-06 57°/a 67% 65% 89°/a - -
Avg 98-02 23°/a 41% 51% 80°/a
Avg 03-06 99% 100% 84% 100% I

Avg 02-06
88%
100%
87%
100%
i _

Averege In-Priority %(IP) at Kersey for a July 1, 1997 priority date (1 minus OP)
r Ma Jun Jul
Avg98-06 43°/a 33% 35% 11%
Avg 98-02 77% 59% 49% 201/a -- --
Avg 03-06 1% 0% 16% 0%
Avg 02-06 12% 0% 13% 0%

Diversion Pattem (DP) in Coloredo Futur e Depletion M odel for July 1, 1997 priorit y
r Ma Jun Jul
5% 40% 50% 5%

Weighted In-Priority %for April thru July period weighted b monthly diversion pattern [Sum of (DP,mthly times IP,mthl )]
Avg 98-06 33% A
Avg 98-02 53% B
Avg 03-06 8% C
Avg 02-06 7% D

% In-Priority compared to 1998-2002 period
98-06 period 62% =A/B
03-06 period 15% =C/B
02-06 period 13% =D/B

% Native S. Platte Flow development currently assumed in model for 1998-2002 period by Region
North Central South
10% 15% 10%

°/a Native S. Platte Flow Development for 1998-2002 adj usted by °/, In-Priority for other periods
North Central South
98-06 period 6.2% 9.3% 6.2%
03-06 period 1.5% 2.3% 1.5%
02-06 eriod 1.3% 2.0% 1.3%