July 10, 2002
David Murillo
509-575-5848 Ext. 213

The July 2002 forecast of water supply based on snowpack and precipitation data available on the first of July indicates a full water supply for all users for the coming irrigation season.

Converting the June- September runoff forecast (natural flow) to total water supply available (TWSA) gives the following volumes for the July through September use period:

With 50% normal subsequent conditions	1.62 million acre-ft
With 100% normal subsequent conditions	1.63 million acre-ft
With 150% normal subsequent conditions	1.64 million acre-ft.

The Title XII target flow at the Yakima River near Parker gaging station is 400 cfs based on the July 1 forecast. Total demand to be placed against this supply for irrigation, regulation and flows passing Sunnyside Dam averages 2.5 million acre-feet per season.

Storage Control began on July 3, 2002. The system reservoir volume will decline as water is released to meet demands. All reservoirs have filled1 this season.

Storage Conditions as of May 1 were as follows:

Reservoir	Content (acre-feet)	Total Capacity	Percent of Capacity
Keechelus	138,936	140,3001	99
Kachess	239,798	239,000	100
Cle Elum	435,654	436,000	100
Bumping	33,411	33,700	100
Rimrock	197,390	198,000	100
Totals	1,045,189	1,047,9001	100

1Keechelus capacity is currently restricted to 140,300 acre-feet. Normal capacity is 157,800 acre-feet.