UWM Plan - Municipal Water District of Orange County
UWM Plan - Municipal Water District of Orange County
UWM Plan - Municipal Water District of Orange County
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• Gain <strong>of</strong> Local Supply Adjustment: This adjustment accounts for planned or<br />
scheduled gains in local supply production above the base period, which are not<br />
due to extraordinary actions to increase water supply in the allocation year.<br />
Gains <strong>of</strong> local supply include increases in groundwater production that do not<br />
result in the mining <strong>of</strong> a groundwater basin, new brackish water treatment<br />
facilities, or increases to surface water supplies due to changes in hydrology.<br />
These are considered planned and scheduled increases in local supply<br />
production, which are added to the base period local supplies.<br />
• Loss <strong>of</strong> Local Supply Adjustment: This adjustment accounts for losses <strong>of</strong> local<br />
supply production from the base period. Losses <strong>of</strong> local supply due to hydrology<br />
or water quality are subtracted from the Base Period Local Supplies. They<br />
cannot be used to cover IAWP shortages.<br />
• Extraordinary Increased Production Adjustment: This adjustment accounts for<br />
extraordinary increases in local supplies above the base period. Extraordinary<br />
increases in production include such efforts as purchasing transfers or mining <strong>of</strong><br />
groundwater basins. In order not to discourage such extraordinary efforts, only a<br />
percentage <strong>of</strong> the yield from these supplies is added back to Allocation Year<br />
Local Supplies in shortage level 3 and beyond as shown below. This has the<br />
effect <strong>of</strong> “setting aside” the majority <strong>of</strong> the yield for the agency who procured the<br />
supply. The percentage <strong>of</strong> the extraordinary increases in local supply<br />
corresponds according to the regional shortage level.<br />
Regional<br />
Shortage<br />
Level<br />
Table 4.1<br />
Extraordinary Increased<br />
Production Adjustment<br />
Regional<br />
Shortage<br />
Percentage<br />
Extraordinary<br />
Increase<br />
Percentage<br />
1 5% 0%<br />
2 10% 0%<br />
3 15% 15%<br />
4 20% 20%<br />
5 25% 25%<br />
6 30% 30%<br />
7 35% 35%<br />
8 40% 40%<br />
9 45% 45%<br />
10 50% 50%<br />
Step 3 – Calculate Initial Minimum Allocation Based on Declared<br />
Shortage Level<br />
This step sets the initial allocation. After a regional shortage level is established,<br />
MWDOC will calculate the initial allocation as a percentage <strong>of</strong> adjusted Base Period<br />
Imported needs within the model for each client agency.<br />
MWDOC <strong>Water</strong> Supply Allocation <strong>Plan</strong> Page 11