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3 initial depletion' of 57,100 acre-feet, (2) 7 years of research to determine endangered fish habitat needs, (3) operation of the Navajo Dam to provide a wide range of flow conditions for the endangered fish, (4) a guarantee that the Navajo Reservoir will be operated for the life of the Project to mimic a natural hydrograph based on the research, and (5) legal protection for the reservoir releases to and through the endangered fish habitat to Lake Powell and a commitment to develop and implement a Recovery Implementation Program for the San Juan River. The 1991 opinion also concluded that the project was not likely to jeopardize the continued existence of the bald eagle. Development and implementation of a Bald Eagle Management Plan was included as a conservation recommendation. As a result of the reasonable and prudent alternative in the 1991 biological opinion, the San Juan River Basin Recovery Implementation Program (San Juan RIP) was formulated in 1992. During informal consultation the Service determined that no threatened or endangered plant species would be impacted by the project. Also, after surveys were conducted, the Service concurred with Reclamation's no affect determination for the Mexican spotted owl (Strix occidental is lucida). BIOLOGICAL OPINION Based upon the best scientific and commercial information currently available, it is the Service's biological opinion that the Project, as described below, is likely to jeopardize Colorado squawfish and razorback sucker and adversely modify or destroy their critical habitat by reducing prespawning and nursery habitats and increasing the concentrations of contaminants in the aquatic habitat of the San Juan River. The San Juan RIP is designed to act, if sufficient progress toward recovery is determined by the Service, as a reasonable and prudent alternative to actions within the basin that are found likely to jeopardize the continued existence of listed aquatic species or result in the adverse modification or destruction of critical habitat in the basin. The Service has determined that sufficient progress has not yet been achieved to avoid jeopardy or adverse modification to critical habitat of Colorado squawfish and razorback sucker for a depletion of 149,220 acre-feet. Therefore, the Service has developed reasonable and prudent alternatives to avoid the likelihood of jeopardy and adverse modification of critical habitat. It is the Service's biological opinion that the Project, as described herein, is not likely to jeopardize the continued existence of the bald eagle. Implementation of the conservation recommendations will aid in the conservation of the species. Reclamation has agreed with the Service's opinion that the Project is likely to jeopardize Colorado squawfish and razorback sucker and adversely modify or 'The Service defines a depletion as the amount of water that is not returned to a river system due to project implementation, i.e., the amount diverted minus return flows and evaporation equals the depletion.