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SAN JUANIDOLORES BASIN <br />Basinwide Conditions Assessment <br />The SWSI value for the month was 1.6. Storage in <br />McPhee, Vallecito, and Lemon reservoirs totaled 119% of <br />normal as of the end of July. <br />Flows at the Animas River at Durango averaged <br />1,299 cfs (110% of normal) with a maximum average daily <br />peak flow of 2,021 cfs on July 2nd. The Dolores River at <br />Dolores averaged 393 cfs (99% of normal) with a maximum <br />average daily peak flow of 631 cfs on July 1St. The La Plata <br />River at Hesperus averaged 23.8 cfs (64% of normal) with a <br />maximum average daily peak flow of 40 cfs on July 3St. <br />Precipitation in Durango was 2.03 inches for July which is <br />near the 30-year average of 1.88 inches. Precipitation to <br />date in Durango, for the water year, is 17.60 inches which is <br />above the average of 15.19 inches. Temperatures were near <br />normal for the month. <br />At the end of the month Vallecito Reservoir <br />contained 114,280 acre-feet compared to its normal contents <br />of 87,505 acre-feet (131 % of normal). McPhee Reservoir <br />was up to 348,482 acre-feet compared to its normal contents <br />of 296,923 acre-feet (117% of normal), while Lemon <br />Reservoir was up to 33,620 acre-feet as compared to its <br />normal content of 27,468 acre-feet (122% of normal). <br />Outlook <br />The monsoon rains of July have begun. August is the <br />wettest month of the year in Durango and appears to be on <br />track for average precipitation. <br />Administrative/Manaaement Concerns <br />The compact period on the La Plata between <br />Colorado and New Mexico began on February 15t". New <br />Mexico placed a call starting on April 30th for half the flow at <br />the upper index gage up to 80cfs. <br />Aug-08 <br /> <br />4 SAN JUAN-DC~C42ES BASIN SWSI HSTORY <br /> <br /> <br />W <br />W 3 <br />2 <br />J <br />Q <br />~ <br /> <br />0 <br />x <br />W <br /> <br />} <br />° -, <br /> <br />-2 <br /> Jar r99 Ja rr00 Ja r01 Ja rs Jar r03 Jar r04 Ja rr05 J arr06 Ja rr07 Jarr 08 <br /> ANIMAS RIVER NR. DURANGO, FLOW BY WATER YEAR <br /> 1,000,000 <br /> 900 <br />000 <br /> , <br /> soo <br />ooo <br />v , <br />_ <br />700 <br />000 <br /> , <br />a <br />soo <br />ooo <br />~ , <br />0 <br />500 <br />000 <br /> , <br />W <br />400 <br />000 <br />? , <br />a <br />~ <br />300 <br />000 <br /> , <br />v 200 <br />000 <br /> , <br /> 100 <br />000 <br /> , <br /> 0 <br /> <br /> Oct Nov Dec Jan Feb March April May June July Aug Sept <br /> ~ WET (1973) ~ DRY (2002) ~ AVG ~ 2008 <br />