FLOODC00270

• County: Jefferson
• County: Arapahoe
• Title: Chatfield Reallocation Study: Storage Use Patterns 2/1/2003
• Date: 2/1/2003
• Prepared For: Jefferson County / Arapahoe County
• Prepared By: US Army Corps of Engineers/CWCB
• Floodplain - Doc Type: Floodplain Report/Masterplan

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SECTION 4

IDENTIFICATION OF POTENTIAL USERS OF REALLOCATED SPACE

4.1 LIST OF POTENTIAL USERS

Table 4-1 shows the sixteen entities who would be interested in further storage allocation in
Chatfield, and supporting information regarding potential use patterns of inflow storage and
outflow. This information was gathered through communication with each entity.

4.2 CLASSIFICATION INTO FOUR MAJOR CATEGORIES OF WATER USE

The entities shown in Table 4-1 can be classified into four major categories of use for potential
reallocated storage in Chatfield Reservoir. These categories are: (I) municipal water supply,
(2) augmentation water supply, (3) maintaining minimum instream flows, and (4) M&I with
conjunctive use. These use categories served as the basis for developing the scenarios used to
model demand patterns for potential future storage in Chatfield Reservoir.

Target releases from reallocated Chatfield Reservoir storage were developed for each ofthe
water use categories. The source and basis for these target releases from Chatfield Reservoir
reallocated storage for the four categories of water user are discussed in Section 5.

P:\Data \GEN\CWCB\ChatfieJd\Report 12 .02\RevisedChatReportl 03\Report2-03 .doc

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