WSP03823

• File Number: 8135.300
• Description: Ditch Companies - Catlin
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 1/29/1976
• Author: D Helton R McCabe
• Title: Catlin Transfer Plan and John Martin Permanent Pool Operation
• Water Supply Pro - Doc Type: Report/Study

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period was necessary to approach an equilibrium in which
the amount of water percolated equals the amount of
water returned to the river.

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Historic return flows are compared with return flow
deliveries under the State's plan in Figure 3. De-
liveries under this plan were calculated by reducing
the headgate diversions by 20 percent to allow for
canal losses, prorating for the number of state shares,
and multiplying by 0.195 to obtain the portion that
would have been left in the river system this plan.

.....The State Engineer would deduct transit losses from
deliveries of water for storage in John Martin Reser-
voir. Transit losses are presently charged at a rate
of 0.07 percent per mile. These losses are presently
under study by the Division of Water Resources, the
USGS, and others. When more accurate estimates can be
made, they would be used.

.....This water transfer would require modifications to or
replacement of division boxes located along several
Catlin laterals and this would be done at State expense.
The division boxes are the "proportional-divider" type
and are constructed of concrete, most will require
major modification or replacement. Data concerning
division box changes are shown in Table 8.

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.....Some invididuals who sold Catlin stock to the State may
intend to continue to irrigate a portion of the lands
associated with the stock through the use of wells. If
they use the wells for this purpose, they must operate
them in compliance with the current rules and regulations
to prevent injury to prior appropriators. These in-
dividuals will be allowed to pump three-sevenths of the
time and will be required to curtail pumping four-sevenths
of the time, the same as other users of well water.

provisions in this plan were applied to historic conditions
of compact years 1949-73 to determine the amount of storable
water that could have been obtained at John Martin Reservoir.

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