WSP03703

• File Number: 8111.600
• Description: ARCA Annual Reports
• Basin: Arkansas
• Date: 12/9/1970
• Author: ARCA
• Title: Twenty-Second Annual Report Arkansas River Compact Administration for the Year 1970
• Water Supply Pro - Doc Type: Annual Report

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Corps of Engineers continued to operate the conservation
pool of John Martin Reservoir in accordance with the terms
of the Compact and the orders of the Administration.

7.

Water Supply, Reservoir Operation and Hydrologic Data

On November 1, 1969, the beginning of the compact year,
20,420 acre feet were stored in John Martin Re5ervoir. Colorado made
no demands for river flow until March 9, 1970 when 30 cfs. of river
flow was requested. From then until April 16, the call for river flow
varied from 30 to 65 cfs. By the time the irrigation season started on
April I, the water in storage had increased to 54,180 acre feet.

Neither Colorado nor Kansas irrigators made a call for waler in
storage until April 17 when Colorado demands called for release of 100
cfs. The maximum of 57,852 acre feet in storage was reached April 19.
Kansas demand for water was made April 20. Various releases were
continued until the water in storage was exhausted at 9 P.M. M.D.T. on
May 28. The reservoir remained empty untIl October 8 when the gates
were closed at 8 A.M. Even though Colorado ditches called for reservoir
water from October 12 until the end of the IrrigatIOn season, October
31, 1970, storage continued for that period. Storage on 'October 31 was
2,692 acre feet.

I nflow to John Martin Reservoir dUring the Irrigation season was
127,290 acre feet and during the same period 99.740 acre feet crossed
the Colorado.KJnsas state line. Diversions by Colofado ditches in Water
Distr"ict 67 and by Kansas ditches for the period were 179,120 acre feet
and 92,273 acre feet respectively.

The gaging station at Garden City, Kansas has been discontinued
by mutual agreement of the states and will no longer be tabulated in
the <lppendices.

8. Gaging Stations

In general, streamflow records of satisfactory accuracy were
obtamed at the Compact stations. Emphasis was continued on
performing additional field work to increase the accuracy of the records
and on providing current streamflow data to the Administration and
State officials as required.

It will be noted that there are differences in the releases from the
reservoir, as measured at the gaging station, and the daily demands by
Colorado and Kansas. Perfect agreement cannot be obtained, but the
differences could be minimized by relocating the gaging station nearer
to the dam and installing an artificial controL This would stabilize the
rating and also reduce the time Involved in adjusting the gates to the
required release.

The Administration approved a cooperative agreement with the
U.S. Geological Survey for the fiscal year July 1. 1970 to June 30,
1971, in the amount of $7,600;$3,800 for each party. These funds are
for tl1e operation of the Compact station at Lamar, the additional field
work at the other Compact stations. the maintenance of the radIO
equipment, the providing of current streamflow data, and the
preparation of records for the Annual Report.

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