WSP01350

• File Number: 8141.700
• Description: Fryingpan-Arkansas Project - Annual Operating Plans and Reports
• State: CO
• Basin: Arkansas
• Water Division: 5
• Date: 11/1/1980
• Author: US DoI BoR
• Title: Annual Operating Plan Fryingpan-Arkansas Project Colorado 1980 - 1981
• Water Supply Pro - Doc Type: Annual Report

.,- (''I, n ~~.
l.)h,u F.

Storage Contracts

.

In water year 1980 the project had contracts with a number of entities
for storage of the entities' water in project storage. There is a
contract with CF&I Steel Corporation for firm storage for 17,416 acre-
feet of replaceIlEl1t storage and 10,000 acre-feet of additional storage.
The High Line Canal Canpany stored 7.464 acre-feet of water under a 40-
year long-term contract. The remaining contracts listed below are 1-
year, interim contracts for if-and-when storage space as follows:

Entity

Maximum Storage
Authorized 1979-80
(Acre-Feet)

M3ximum Storage
Used Water Year 1979-80
(Acre-Feet)

Catlin Canal Co.
Homestake
Board of Water I'brks. Pueblo
Pueblo West M::!tropoliton District
Bessemer Irrigation Ditch OJ.

3,000
30,000
10.000
250
15,000

463.14
12,726.19
932.55
200.92
148.54

G. Project Water Sales and Deliveries

The project rold 70,000 acre-feet of water to the Southeastern Colorado
Water Conservancy District during water year 1980. Through September 30,
1980, 53,000 acre-feet had been delivered.

N. OPERATION PU\N FOR WATER '.mAR 1981

A. General

.

Three potential operations have been considered for available facilities
of the Fryingpan-Arkansas Project in conformity with established operating
criteria under assumed conditions of inflow. ~ of these represent
operating conditions that \\Quld be experienced. if nmoff during water
year (W. Y.) 1981 is extremely high or low. Di vertable flows during W. Y .
1981 have a l-in-lO chance of being greater than the rearonable maximum
and a l-in-lO chance of being less than the rearonable min:irrnml. Therefore/
actual operations in 1980-81 statistically have an 8-in-lO chance of
falling between the t\\O extremes. The third potential operation represents
llOst probable diversi'Ons and operating conditions. Tabulations of the
three potential operations for W. Y. 1981 are shown in Tables 4, 5, and
6.

In considering potential operation plans, it was intended to provide the
necessary flexibility to change fram one set of conditions to another.
Changing conditions will require adjust:rrents to the proposed operation
plan. Forecasts of the April-July nmoff will be initiated in February
1981 and continue during each SUCceeding llOnth through May. These
forecasts are based upon the Soil Conservation Service's llOnthl y srDW
survey, llOst probable precipitation for the :remainder of the season, and
historic runoff patterns.

.

5