34 NATIONAL FOREST MANUAL. 



" Project works " means tlie physical structures of a power project. 



" Construction of the project works " means the actual construction of dams, 

 water conduits, power houses, transmission lines, or some permanent structure 

 necessary to the operation of the complete power project, and does not include 

 surveys or the building of roads and trails, or the clearing of reservoir sites 

 or other lands to be occupied, or the performance of any work preliminary to 

 the actual construction of the permanent project works. 



" Operation period " means the period covered by final permit subsequent to 

 the actual beginning of operation. 



" Survey-construction period " means the period covered by preliminary and 

 final permits prior to the operation period. 



" Nominal stream flow " means the sum of (a) the flow determined by aver- 

 aging the values estimated for the natural mean flow for the two-month (cal- 

 endar) minimum-flow period in each successive five-year period or major fraction 

 thereof and (6) the stream flow made available from storage not by the project 

 works. 



" Load factor " means the ratio of average power output to maximum power 

 output. 



"Total capacity of the power site" means the continued product of (1) the 

 factor 0.08 ;* (2) the average effective head, in feet; (3) the stream flow 

 estimated to be available at the intake (in second-feet and in amount not to 

 exceed the maximum hydraulic capacity of the project works) considered as 

 the sum of (a) the nominal stream flow and (&) stream flow made available 

 from storage by project works; and (4) a factor, not less than the average 

 load factor of the power system, representing the degree of practicable utiliza- 

 tion of the stream flow estimated to be available and based on the extent of 

 practicable fore-bay storage and the load factor of the power system. 



" Rental capacity of the power site^" means the capacity on which the rental 

 charges are based. Unless otherwise 'ordered by the Secretary, it will be deter- 

 mined by making the following deductions from the total capacity of the power 

 site: 



(a) Whenever power projects include conduit sites not wholly on National 

 Forest lauds, a deduction will be made from that part of the total capacity of 

 the power site which is due to the use of the nominal stream flow. This deduc- 

 tion will be, in per cent, the sum of (1) the product of the proportion of the 

 average effective head obtained from the dam by the per cent of submerged 

 lands below the flow line fixed by the average effective head that are not 

 National Forest lands, and (2) the product of the proportion of the average 

 effective head obtained from the water conduit (from intake to tailrace outlet) 

 by the per cent of the length of said conduit which is not located on National 

 Forest lands. 



(6) Whenever power projects include reservoir sites not wholly on National 

 Forest lands, a deduction will be made from that part of the total capacity of 

 the power site which is due to the use of stream flow made available from 

 storage by the project works. This deduction will be the per cent of the total 

 area of the reservoir sites that is not National Forest land. 



(c) From the total capacity of the power site which remains after deductions 

 (a) and (6) have been made will be made a further deduction, which, in per 

 cent, will be the product of the square of the distance of primary transmission 

 in miles and the factor 0.001, but in no case will deduction (c) exceed 25 per 

 cent. 



Amendment of maps and plans. 



ART. 2. To construct its works on the locations shown upon the maps and in 

 accordance with the plans specifically described in its final application for 



permit, filed with the district forester at on the day of , 



19__, which said maps and plans are hereby made a part of this stipulation, and 

 to make no material deviation from said locations or from said plans unless and 

 until maps or plans showing such deviation shall have been filed with the district 

 forester and approved by the Secretary ; and no deviation or amendment will be 

 allowed which will interfere with the occupancy and use of National Forest 

 lands under existing permits, or conflict with prior rights under pending appli- 

 cations. 



1 The factor 0.08 represents the horsepower at 70 per cent efficiency of a second-foot of 

 water falling through a head of 1 foot. 



