SWSIReportJune2004

• Title: Colorado Water Supply Conditions Report
• Date: 6/15/2004
• Description: Presentation
• Basin: Statewide
• Drought Mitigation - Doc Type: Presentation

ARKANSAS BASIN

Basinwide Conditions Assessment
The SWSI value of -2.4 indicates that for May the
basin water supplies were below normal. Flow at the gaging
station Arkansas River near Portland was 690 cfs, as
compared to the long-term average of 1,176 cfs Storage in
Turquoise, Twin Lakes, Pueblo, and John Martin reservoirs
totaled 56% of normal as of the end of May

Outlook
Snow pack runoff flow levels in the Arkansas Basin
continue to be below normal with the natural flow on the
Arkansas River near WeUsville through June 4th not yet
exceeding 1,100 cfs The river often peaks around the tenth
of June near 3.000 cfs or more
Main stem Arkansas River reservoir storage levels
continue to decrease with John Martin Reservoir at 6,100
acre-feel.
Imports of transmountaln waters from the Colorado
River Basin to the Arkansas Basin are also well below normal
this runoff. The Southeastem Colorado Water Conservancy
District recently allocated their predicted imports of
Fryingpan-Arkansas Project water and allocated only 10,000
acre-feet of water, 5.100 to municipal entities and 4.900 to
agricultural entities. Typical annual allocation and yield
amounts from this transmountain diversion prOject are in the
50,000-60,000 acre-foot range.

Administrative/Management Concerns
Adminstrative concerns during this time of year
continue to center around the assumed yields of
augmentation and other replacement sources of water for
decreed augmentallOn plans and the administratively
approved well replacement plans. If actual Yields which are
often directty tied 10 snowpack runoff levels continue below
average for the year further curtailment or partial curtailment
of municipal and irrigation groundwater diversions will be
necessary thiS irrigation season.

Jun-04

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