FLOOD10319

• County: Arapahoe
• County: Jefferson
• Stream Name: South Platte River
• Basin: South Platte
• Title: Chatfield Reallocation Study Storage Use Patterns
• Date: 2/1/2003
• Prepared For: CWCB
• Prepared By: Brown and Caldwell
• Floodplain - Doc Type: Project

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CHATFIELD REALLOCATION STUDY
STORAGE USE PATTERNS

TABLE OF CONTENTS

Heading

Page

Executive Summary ............................................... ............................................................................... 1

Section 1. Introduction....................................................... ................................................................. 6

Section 2. Target Reallocated Storage Pools.................... ......................... .............. ............................ 7

Section 3. Identification of Water Rights Available for Storage in the Reallocated Space...............8

Section 4. Identification of Potential Users of Reallocated Space ..............................:......................9
4.1 List of Potential Users.......... .................... ................ .................................................9
4.2 Classification into Four Major Categories of Water Use.........................................9

Section 5. Identification of Water Rights Available for Storage in the Reallocated Space and
Development of Target Releases.. .................................... ............... ................................. 10
5.1 South Metro Water Supply Study Participants' Proposed Use of Chatfield
Reservoir for Conjunctive Use..... ........................................................................... 10
5.2 Denver Water's Proposed Use of Chatfield Reservoir Reallocated Storage......... 10
5.3 Greenway Foundation's and City of Littleton's Proposed Use of Chatfield
Reservoir Reallocated Storage...... ......................... ........................................ ....... ..11
5.4 Central Colorado Water Conservancy District's Proposed Use of Reallocated
Chatfield Reservoir Storage.... ............................. ..... ............................................. .11
5.5 Denver Water's Operations Under the 1979 Agreement
(Includes Denver Water's Drought Drawdown Operations) .................................12

Section 6. Mc;>del and Results .................................................... ........................................................13

6.1 Model Description............................................... ......... ......................................... ..13

6.2 Model Results............ ..................................... ......................................................... 13

6.3 Discussion.................................................................. ............................................. .18

Section 7. Conclusions and Recommendations ...............................................................................19

Section 8. Acknowledgment Letters from Water Entities ................................................................20

Section 9. References........ ...................................................................................... .......................... .21

P:\Data\GEN\CWCB\Chatfield\Report12.02\RevisedChatReportl03\T ABLE OF CONTENTS2-03.doc

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