Download pdf - Water Replenishment District of Southern California
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Table 6<br />
ANNUAL OVERDRAFT CALCULATION<br />
for Current and Ensuing <strong>Water</strong> Years (in acre-feet)*<br />
Item<br />
WATER YEAR<br />
2011-2012 2012-2013<br />
Average Annual Groundwater Deficiency (from Table 4)<br />
(105,385) (105,385)<br />
Adjustments/Variances to AAGD<br />
(1) Local <strong>Water</strong> at Spreading Grounds (a) (10,000) (d) 0 (d)<br />
(2) Precipitation, mountain front recharge, applied water (a) (3,000) (d) 0 (d)<br />
(3) Subsurface inflow (b) 0 (d) 0 (d)<br />
(4) Groundwater Extractions (c) (7,100) (d) (6,100) (d)<br />
ANNUAL OVERDRAFT [AAGD+(1)+(2)+(3)-(4)]<br />
(111,300) (99,300)<br />
* Previous Year Annual Overdraft is derived in Chapter III<br />
(a) Difference between actual and model average. Positive value indicates increased recharge.<br />
(b) Difference between annual model value and average model value. Positive value indicates increased inflow.<br />
Does not include seawater intrusion inflow<br />
(c) Difference between actual and model average. Positive value indicates increased pumpage.<br />
(d) Estimated Values. A value <strong>of</strong> zero indicates average year was assumed.
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