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. . II-16 Depletions The amount of power generated at CRSP power plants is directly related to the amount of water available and flowing in the Colorado River. As in the previous case) assumed water depletions in the CRSP system are in question. Energy generation after 1981 was based on runoff and depletion records for the Colorado River drainage system above each of the reservoir sites for the period 1906 through 1980. Estimated future depletions, based on the Bureau of Reclamation's September 1981 depletion schedule, are then subtracted ilS a modification to these records. These modifications are explained and shown by Western in its 1982 Rate Brochure. On page 22 of the Rate Brochure, it states that by FY 2040 there would be 5.8 million acre-feet of depletions in the Upper Colorado River Basin including some 157,000 acre-feet of unidentified depletions. In the previous rate proceeding, unidentified transmission plant additions were elimi- nated by Western as should be the case here concerning these unidentified deple- tions. Similarly, depletions associated with the five participating projects whose construction schedules are not definite are included. Since these proj- ects have no definite construction plan, Western felt it could slide their con- struction to a point in the FY 1981 PRS where repayment of their investment would not influence the rate-setting "pinch point". Even acknowledging that these projects may never be built, Western justified the inclusion of the water depletions associated with those projects (96,000 acre-feet beginning in FY 2031) by stating, ".. .other uses for the water will develop by FY 2031." Although the FERC allowed Western to include unidentified depletions in the last case, Western should have more definite justification than they have put