C150156 FS

• Contract/PO #: C150156
• Contractor Name: Arkansas Groundwater Users Association
• Contract Type: Loan
• Water District: 14
• County: Pueblo
• Loan Projects - Doc Type: Feasibility Study

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The Excelsior Ditch credits estimated to be available during the 2002 plan year were based on AGUA's
50.32 percent interest through ownership and lease, a 60.6 percent factor applied to diversions to
compute consumptive use portion, and a 25 percent reduction from the 1908-1985 average historical
diversions to estimate the dry year yield reduction. The estimated annual replacement credit available
from the Excelsior shares owned or leased by AGUA in 2002 totaled 930 acre-feet. For planning
purposes, winter month yields were not included for replacement supply. However, the ditch was used
for irrigation during November 2002 through March 2003 of the 2002 plan year and during that time
generated approximately 800 acre-feet of additional augmentation credit for AGUA.
Board of Water Works of Pueblo
AGUA planned to receive 4,900 acre-feet of transmountain or otherwise fully consumable water from
Pueblo at the start of the 2002 Plan year. This water typically may be from any reusable sources owned
by Pueblo including direct flow transmountain imports, stored transmountain water, changed water rights
decreed for augmentation use including those of Pueblo's West Pueblo Ditch shares and fully
consumable return flow credits derived from the use of any transmountain or otherwise fully consumable
waters. Water from Pueblo is typically made available on a monthly basis as needed by AGUA. Pueblo
water can be used to replace stream depletions accruing to the Arkansas River above and below Pueblo
Reservoir for AGUA, Booth and some of the substitute supply plans.
AGUA obtained a short-term water lease agreement with Pueblo for 3,895 acre-feet at the rate of $18.00
per acre-foot at the end of May 2002. Due to the severe drought that developed, AGUA received a letter
on August 1, 2002 from Pueblo stating that they were suspending AGUA's contract for replacement
water. AGUA only received a total of 960 acre-feet from Pueblo during the 2002 Plan year and was not
able to negotiate a contract with them for the March 1, 2003 Plan.
Southeastern Colorado Water Conservancy District (SECWCD) 5ources
As stated in the March 1, 2002 Plan, AGUA planned to request a total of 6,365 acre-feet of Fry-Ark
Project first use and return flows available from SECWCD. Approximately 5,765 acre-feet were planned
for use on the Arkansas River and 600 acre-feet on Fountain Creek. Credits are provided by SECWCD
on a predeternuned monthly schedule. In May of 2002 AGUA secured a contract with SECWCD for
only 3,259 acre-feet of replacement water at a rate of $6.50 per acre-foot. Later in the year AGUA was
' AGUA — 2003 Feasibility Study - 10 - August 15, 2003