Table 2-1. Approved Operating Rules for Carmel River Dam and Reservoir Project:
Minimum Instream Flow Requirements below New Dam
 
January-March April-May June-December
Normal or Better Years
Maintain 20 cfs below Carmel River Dam for juvenile rearing until an attraction event occurs; once an attraction event occurs, maintain 50 cfs below Carmel River Dam for migration, spawning, and incubation purposes Maintain 40 cfs below Carmel River Dam for smolt emigration Maintain 20 cfs below Carmel River Dam for juvenile rearing
Below-Normal Years
Same flow requirements as normal or better years Same flow requirements as normal or better years Same flow requirements as normal or better years
Dry Years
Same flow requirements as normal or better years except that, once an attraction event occurs, maintain 35 cfs below Carmel River Dam for migration, spawning, and incubation purposes Maintain 30 cfs below Carmel River Dam for smolt emigration If usable storage in Carmel River Reservoir is greater than 5,000 af, maintain 20 cfs below Carmel River Dam for juvenile rearing; if usable storage in Carmel River Reservoir is less than 5,000 af, maintain 10 cfs below Carmel River Dam for juvenile rearing
Critically Dry Years
Same flow requirements as normal or better years except that, once an attraction event occurs, maintain 20 cfs below Carmel River Dam for migration, spawning, and incubation purposes Maintain 20 cfs below Carmel River Dam for smolt emigration Maintain 10 cfs below Carmel River Dam for juvenile rearing
Critically Low Storage
Maintain 5 cfs below Carmel River and San Clemente Dams Maintain 5 cfs below Carmel River and San Clemente Dams Maintain 5 cfs below Carmel River and San Clemente Dams
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Notes: Water year classifications are based on selected exceedance frequency and conditional probability values computed from the long-term reconstructed record of unimpaired flows at the San Clemente Dam site (1902-1996). These classifications are updated each month during the water year and reflect expected conditions for the entire water year. The water year classifications can be updated within a month if rainfall and runoff are substantial.
"Critically low storage" is defined with respect to usable storage in Carmel River Reservoir. Specifically, critically low storage would occur whenever usable storage in Carmel River Reservoir falls below 2,000 af and would persist until usable storage in Carmel River Reservoir exceeds 7,500 af.
Source: MPWMD 1994a as refined by permit conditions.

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