[Code of Federal Regulations]
[Title 43, Volume 1]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 43CFR418.22]

[Page 573-576]
 
                    TITLE 43--PUBLIC LANDS: INTERIOR
 
      CHAPTER I--BUREAU OF RECLAMATION, DEPARTMENT OF THE INTERIOR
 
PART 418--OPERATING CRITERIA AND PROCEDURES FOR THE NEWLANDS RECLAMATION PROJECT, NEVADA--Table of Contents
 
Sec. 418.22  Future adjustments to Lahontan Reservoir storage targets.

    (a) The Lahontan Reservoir storage targets must be adjusted to 
accommodate changes in water demand in the Carson Division. Using the 
information reported by the District by March 1 of each year on eligible 
land expected to be irrigated and end-of-year data on eligible land 
actually irrigated (Sec. 418.9(b)), the Bureau will determine if the 
Lahontan Reservoir storage targets need to be changed. If no change is 
needed, the storage targets currently in effect will remain in effect.
    (1) Only the actual water demand reported for full water years (100 
percent water supply) will be considered. Targets will not be changed 
based on water demand reported for less than full water years.
    (2) All changes in storage targets must start on October 1 of any 
year. If information provided by March 1 and other available information 
indicates that the Lahontan Reservoir storage targets must be changed, 
the new set of storage targets must be applied starting October 1 of the 
same year and remain in effect until changed according to this section.
    (b) All changes to storage targets will be made according to the 
table in this section. The table of storage targets has been developed 
to provide a consistent Project water supply over a range of demands.
    (1) A storage target adjustment must be made in increments of 
thousands of acre-feet for the change as indicated in the column listing 
Carson Division Demand and the complete set of monthly targets must be 
applied.
    (2) If the change in reported water demand is above or below the 
values in the table of storage targets, the adjustment to the storage 
targets can be calculated. The calculated adjustment is the number that 
would appear in the column Target Adjustment in the table. The 
calculated Target Adjustment is then added or subtracted to the base 
storage target for each month. Target Adjustments must be made in whole 
increments of 1,000 acre-feet and calculated values will be rounded to 
the nearest 1,000 acre-feet.
    (i) For demands greater than those set forth on the table, the 
formula for the Target Adjustment is: Target Adjustment = 0.00208 
(Demand in acre-feet--271,000 acre-feet). For example, if water demand 
increased to 292,635 acre-feet per year, the Target Adjustment 
calculation would be = 0.00208x(292,535-271,000). The result

[[Page 574]]

would be a Target Adjustment of 45 or 45,000 acre-feet. This would be 
added to the base monthly storage target values so, the January-May 
target would be 219,000 acre-feet, June would be 235,000 acre-feet, and 
so on.
    (ii) For demands less than those set forth on the table, the formula 
for the Target Adjustment is: Target Adjustment = 0.00174 (Demand in 
acre-feet--271,000 acre-feet). For example, if water demand decreased to 
248,011 acre-feet per year, the Target Adjustment calculation would be = 
0.00174x(248,011-271,000). The result would be a Target Adjustment of -
40 or -40,000 acre-feet. This would be subtracted from the base monthly 
storage target values so, the January-May target would be 134,000 acre-
feet, June would be 150,000 acre-feet, and so on.


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