Select Water Storage Information and Flow Conditions ‎(2)‎

• File Number: 8461.450
• Description: EAC/RCC Meetings
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 11/6/2006
• Author: Ted Kowalski
• Title: Select Water Storage Information and Flow Conditions
• Water Supply Pro - Doc Type: Correspondence

STATE OF COLORADO
Colorado Water Conservation Board
Department of Natural Resources
1313 Sherman Street, Room 721
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
www.cwcb.state.co.us
Bill Owens
To: Reservoir Coordinating Committee Members Govemor
Russell George
From: Ted Kowalski, Program Manager , Executive Director
Rod Kuhazich
Date: November 6, 2006 CWCB Director

Subject:
Summary of Select Water Starage Information and Flow Conditions Dan McAuliffe
Deputy Director
for the South Platte River Basin
I. INTRODUCTION
Colorado is pleased to provide the following information in support of the Reservoir Coordinating
Committee (RCC) for the three State Platte River Cooperative Agreement. In preparing the
information I focused my efforts on the South Platte River and selected data, which I believe is the
most relevant for the RCC. As always, I have also included a number of Internet Sites, which people
can access for additional information and up-to-date information over the next several months.
II. WATER SUPPLY OUTLOOK
Stream Flow
I have attached several graphs of historic and current (September 2006) flow information for the
South Platte River at Julesburg. The mean daily flow for the South Platte at Julesburg for September
2006 and for the period of record (1902-2004) was 42 cubic feet per second (cfs) and 245 cfs,
respectively (see Figures 1-5). The mean daily flow for the South Platte at Julesburg for September
2005 was 71 cfs. The mean daily flow for the South Platte at Kersey for September 2006 and for the
period of record (1901-2004) was 389 cfs and 517 cfs. The mean daily flow for the South Platte at
Kersey for September 2005 was 311 cfs. Generally, the South Platte River flows dropped off
significantly in June, July and August.
Reservoir Storage
A summary of the status of select reservoir storage and reservoir capacity is provided in
Figures 6-9. While the amount of precipitation in the South Platte River basin was above average at
the April meeting, the warm temperatures in May saw potential benefits evaporate quickly. As a
result, many of the reservoir levels in the basin are still recovering. Figures 6 and 7 show that
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