PROJ01895 ‎(2)‎

• Contract/PO #: C153768
• Contractor Name: Lower Arkansas Water Management Association
• Contract Type: Loan
• Water District: 67
• County: Bent
• County: Prowers
• Bill Number: SB 96-124
• Loan Projects - Doc Type: Contract Documents

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The Amity irriga~ion system is located about nine miles below John Martin Reservoir in
the Lower Arkansas Basin. Please see the attached schematic diagram prepared by Helton
& Williamsen, LA. WMA's engineering consultant. The Amity has a long record of
diversions and can store water in both the Great Plains Reservoir System as well as lohn
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Martin Reservoir~
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Helton & Williarltsen have estimated the Amity's average consumptive use as 1.27 acre-
feet per share for ithe years 1950 to 1994. The purchase of 270 shares would then yield
about 343 acre-fe~t of consumptive use for LA WMA' s augmentation program. LA WMA
is proposing to pay about $675 per acre-foot of average consumptive use on the Amity
purchases, which lis essentially the same acre-foot price presented to the Board for the
Fort Bent shares. [he total purchase price would be $231,458.
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Table 1 summariies the LA WMA water rights acquisitions financed or proposed to be
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financed by CWqB loans.

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Tabl~ 1. LA WMA Water Rights Financed with eWeB Loans

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Purchase
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Cost

Cost per Ac-Ft
of Cons. Use
$484
$475
$673
$675
$577

$1,937,440
$651,394
$3,124,371
$231,458
$5,944,663

DiscussioI.1 of Amitv ACQuisition
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Helton & Williamsen have estimated that LAWMA's mainstem irrigation wells will
pump 67,500 acre~feet per year in an average year and 100,000 acre-feet in a dry year.
The estimated replacement requirements would be 18,049 acre-feet in an average year
and 24,435 acre-fe~t per year in the second consecutive dry year following a series of
average years. '

The average annual yield of LA WMA's curren't replacement sources, assuming all 3,569
Highland shares ar~ secured, is estimated by Helton & Williamsen at 17,680 acre-feet
leaving an average lannual deficit of about 369 acre-feet. The acquisition of 270 Amity
shares with an avenage annual yield of 343 acre-feet would result in almost total coverage
of LA WMA's depletions in an average year.

The amount currently available to lend under Contract No. C153768 is $424,416. After
subtracting out the funds necessary to purchase the additional 187 Highland shares, about
$265,000 would remain to purchase either the Amity or Fort Bent shares as outlined
above and in the May 1997 presentation to the Board.

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