Laserfiche WebLink
<br />Il <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />1208 <br /> <br />Off-farm irrigation transmission facilities were conceptually <br /> <br /> <br />designed for those parcels with preliminary payment capacities <br /> <br /> <br />greater than the off-farm water pumping costs. The pumping cost was <br /> <br /> <br />re-evaluated, added to the facilities cost, and compared to the <br /> <br /> <br />preliminary payment capacity. <br /> <br />To complete the PIA analysis, the cropping pattern and payment <br /> <br /> <br />capacities will be reviewed by the economist taking into account the <br /> <br /> <br />practicality of the cropping pattern for the particular parcel and <br /> <br /> <br />any agronomic costs that might be particular to the parcel. Several <br /> <br /> <br />i tera t ions of th is process between the economist and the eng ineer may <br /> <br /> <br />be necessary in order to develop the most economical parcel and <br /> <br /> <br />facilities layout. Those parcels that still exhibit positive <br /> <br /> <br />residual payment capacity after these further analyses are then <br /> <br /> <br />determined to be practicably irrigable. <br /> <br />D.2 SELECTION OF PARCELS FOR OFF-FARM DESIGN <br /> <br />Parcels to be considered for PIA analysis were identified in the Task <br /> <br /> <br />B Report along with on-farm irrigation costs. The Task B report <br /> <br /> <br />identified irrigation costs for handmove sprinkler, sideroll <br /> <br /> <br />sprinkler, gravity (furrow or basin), center pivot, and center pivot <br /> <br /> <br />with sprinkler in the corners. Computer tabulation compared on- <br /> <br /> <br />farm irrigation costs to the crop payment capacity for an <br /> <br /> <br />alfalfa/barley crop rotation. <br /> <br />The first step in making this task analysis was determination of the <br /> <br />2 <br />