PUB00118

• Year: 2000
• Title: Arkansas River Water Needs Assessment
• CWCB Section: Interstate & Federal
• Author: Smith and Hill
• Description: Information and findings associated with the Arkansas River Water Needs Assessment study
• Publications - Doc Type: Historical

Arkansas River Water Needs Assessment - Section 1. Executive Summary

Baseline Arkansas River Hydrograph
Incorporating Fryingpan.Arkansas
Project Operations

The baseline Arkansas River hydrograph shown in
Figure 1-2 was developed by using flows and Project
operations that were observed from 1982 through
1994. Project operations that were designed to fulfill

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flow management recommendations from CDNR
have been deleted from the hydrograph whenever a
separate accounting of those operations was
recorded. The purpose of these adjustments was to
create a baseline Arkansas River hydrograph that
reflects expected flows when the project is operated
to optimize water available for consumptive use and
for hydroelectric generation. In the next discussion,
this baseline hydrograph will be compared to the
flows needed to support natural resource values.

FIGURE 1-2

Arkansas River Baseline Hydrograph
(Flows at Wellsville Gage 1982.1994 )
Mean Daily Flow: October I-September 31

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Note: Water released from upper basin reservoirs as part of the flow augmentation program between July 1 and August 15
has been subtracted from this hydrograph. Water released during other parts of the year as part of the annual f1o~
management program has not been subtracted from this hydrograph because those releases are not accounted for
separately from other water deliveries.

1-10 - Operation of the Fryingpan-Arkansas Project