WSP08677

• File Number: 8102
• Description: Arkansas River Basin Basic Hydrology
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 11/6/1965
• Author: J E Moore L A Wood
• Title: Analog Model Evaluation of the Arkansas River Valley in Eastern Colorado
• Water Supply Pro - Doc Type: Report/Study

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Moore and Wood - II
Oral - GSA

The results of two channel-gain and -loss studies

are shown on the next figures. On these maps gain is

Figure 5.--Channel gain and loss (May 1964).

.

shown in blue and loss is shown in red. The points where

the measurements were made are shown by black lines.

Inflow of surface water ,and diversions have been eliminated

from the calculations, and only ground-water inflow to the

river or loss from the' river is represented. In M~y,

before much ground-water pumping, the river between the

Diversion Dam (near La Junta) and the County line had a

net loss of 7 cfs. In July, the period of greatest pumping,

~

Figure 6.--Channel gain and loss (July 1964).

the river between the same points had a net loss of

37 cfs. The areas of greatest loss correspond closely

to areas of greatest decline of water level and to areas

of greatest withdrawal of ground water.

.