LPPD000391

• Contract/PO #: C153715
• Contractor Name: Lower Arkansas Water Management Association
• Contract Type: Loan
• Water District: 67
• County: Prowers
• Bill Number: SB 96-124
• Loan Projects - Doc Type: Feasibility Study

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March 1996 Final

Project return flow and 109 acre-feet from the LA WMA account water, for a total of 1 51
acre-feet.

Amitv to Lamar. The well depletions in this river segment were estimated at 695 acre-
feet. These well depletions affected primarily the Lamar Canal. LA WMA would take credit
for 251 acre-feet of transit loss account water and 101 acre-feet of Fryingpan-Arkansas
Project return flow, and would leave the water corresponding to 50 Lamar Canal shares in the
Lamar Canal. In addition, LAWMA would release 295 acre-feet of its account water to the
Arkansas River at a nearly-constant rate during April through October. The 50 Lamar Canal
shares were discussed previously, and were used historically on the Cruikshank Farm. They
produced averages of approximately 75.4 acre-feet annually at the river headgate and 57
acre-feet annually at the lateral headgate. The consumptive use associated with this water
was estimated at 41.0 acre-feet annually and can be considered new water with respect to
the Arkansas River stream system. Analyses made with the Kansas H-I Model indicated that
Usable Stateline Flow increases 36.3 acre-feet for each 100 acre-feet of new water diverted
into the Lamar Canal.

Lamar to X-V and X-V to Buffalo. The well depletions in these two segments were
estimated at 3,714 and 2,530 acre-feet, respectively, for a total of 6,244 acre-feet. LAWMA
would take credit for 639 acre-feet of transit loss account water (465 acre-feet in the Lamar-
to-X-Y river segment and 171 acre-feet in the X-Y-to-Buffalo river segment) and for 230 acre-
feet of Fryingpan-Arkansas Project return flow (in the Lamar-to-X-Y river segment). In
addition, water corresponding to 1,254 shares in the Fort Bent Ditch Company would be
delivered to the Arkansas River through Clay Creek, producing a consumptive use credit of
928 acre-feet. Colorado Beef would deliver, under its agreement with LAWMA, to the river
a consumptive use credit of 465 acre-feet in excess of its own augmentation requirements.
LAWMA would obtain credit for the direct flow portion of the Manvel Canal water rights. The
yield of the Manvel direct flow right was estimated to average 444 acre-feet annually in an
analysis of the records for 1950-63. Applying 61.53 percent to this average yield, the
consumptive use credit becomes 273 acre-feet annually. The balance of the well depletions
and replacement deliveries in these two river segments, prior to any further release of account

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