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to I I t I I I 1 I I I I .~ I I I I I I I Table I. Recommended mean monthly flows [Osmundson et al (1995)] for the IS-Mile Reach in cubic ft/sec. Thc exceedence percent indicates frequency that the given flow should be met. For example, during a ten-year period, half the years should exceed a mean tlow of 1630 cfs in August, September and October; three of the years should exceed 1240 cfs; and two years should exceed 810 cfs for a mean monthly flow. I Exceedence July August September October !SO%(Wctl Mean Monthly Mean Monthly Mean Monthly Mean Monthly (ds) (ds (cfs) I (ds) 5,370 1,630 1,630 1,630 80% (Nonnal) 3.150 1.240 1,240 1,240 1100% (Dry) 1.480 810 810 810 Since the recommendations from Osmundson et al. (1995) are presented as averages, minimum flows are not the primary consideration. For example, the minimum flow for 2000 was 542 cfs and it was 477 cfs in 200 I. The median minimum summer flow tor the period ofrecord (11 years) was 588 cfs. Even though flows were less than 810 cfs for 32 days in both 2000 and 200 I, these years do not violate Osmundson et al (1995) recommendations. Summer flows in 1999 exceeded the 50% exceedence (wet year) recommendations for all months except July (Table 2) indicating Osmundson considered flows in 1999 optimal. Summer flows in both 2000 and 200] exceeded the 100% (dry year criteria) in all months except July (Table 2). The federal recommendations, however, will not be "met" if another "dry year" occurs before 2009.