This paper describes the process undertaken by Sweetwater Authority (a member agency of San Diego County Water Authority - SDCWA) and
Malcolm Pirnie, Inc. to identify the appropriate amount of annual water supplies to
purchase from a proposed seawater desalination plant. To identify this quantity, Sweetwater and Malcolm Pirnie assessed the following factors:
risk of spill from the reservoirs;
increased reliability with supply diversification; and,
benefit for developing local supplies during a shortage allocation under the
SDCWA Drought Management Plan. Five alternatives were analyzed to determine the appropriate annual quantity to purchase.
The alternatives represent a range of demand conditions, from fairly conservative (10%
of historic demands) to worst case (the third year of a multiple dry year). The alternatives
analyzed were:
10% of historic 10-year total demands;
10% of projected 10-year total demands;
average SDCWA demands over the past 10 years;
projected SDCWA demands over a single dry year; and,
projected SDCWA demands over a multiple dry year period. Includes tables.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 330 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 25 |
| Published : | 02/01/2008 |
