|
Table 7-2 The draft water budget for the
Tucson AMA. |
Third Management Plan Scenario: Projected Future
Conditions Assuming Third Management Plan Conservation Goals
are Achieved by 2010 and Continue through 2025, Tucson Active Management
Area
| SECTOR |
1990 |
1995 |
2000 |
2005 |
2010 |
2015 |
2020 |
2025 |
| Projected AMA Population |
655,000 |
768,000 |
838,300 |
921,000 |
1,005,300 |
1,092,200 |
1,179,200 |
1,266,500 |
| Projected Irrigation Acres |
40,000 |
36,100 |
35,320 |
35,750 |
33,900 |
30,400 |
26,400 |
21,400 |
| MUNICIPAL SECTOR |
| Total Demand |
130,100 |
155,500 |
171,900 |
186,300 |
199,800 |
216,200 |
230,000 |
243,100 |
| Total Supply |
130,100 |
155,500 |
171,900 |
186,300 |
212,100 |
232,000 |
249,800 |
267,100 |
| CAP |
0 |
l00 |
8,500 |
l07,000 |
108,100 |
119,500 |
131,700 |
143,800 |
| Effluent |
6,300 |
7,700 |
11,600 |
23,400 |
32,900 |
36,000 |
37,100 |
37,700 |
| Groundwater |
123,800 |
147,700 |
151,800 |
55,900 |
58,800 |
60,700 |
61,200 |
61,600 |
| AGRICULTURAL SECTOR |
| Total Demand |
93,800 |
98,000 |
104,700 |
117,700 |
107,500 |
97,000 |
85,000 |
70,000 |
| Total Supply |
93,800 |
98,000 |
104,700 |
117,700 |
107,500 |
97,000 |
85,000 |
70,000 |
| CAP |
0 |
0 |
0 |
10,400 |
15,800 |
15,800 |
15,800 |
15,800 |
| Effluent |
4,000 |
1,800 |
3,000 |
3,000 |
3,000 |
3,000 |
3,000 |
3,000 |
| Groundwater |
89,800 |
96,200 |
101,700 |
104,300 |
88,700 |
78,200 |
66,200 |
51,200 |
| INDUSTRIAL SECTOR |
| Total Demand |
48,800 |
60,200 |
71,000 |
72,100 |
73,300 |
73,000 |
74,200 |
75,400 |
| Total Supply |
48,800 |
60,200 |
71,000 |
72,100 |
73,300 |
73,000 |
74,200 |
75,400 |
| CAP |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Effluent |
800 |
800 |
1,300 |
1,700 |
2,900 |
3,600 |
4,200 |
4,700 |
| Groundwater |
48,000 |
59,400 |
69,700 |
70,400 |
70,400 |
69,400 |
70,000 |
70,700 |
| Evapotranspiration |
3,700 |
3,700 |
3,700 |
3,700 |
3,700 |
3,700 |
3,700 |
3,700 |
| SECTOR TOTALS |
| Total Demand |
276,400 |
317,400 |
351,300 |
379,800 |
384,300 |
389,900 |
392,900 |
392,200 |
| Total Groundwater use |
265,300 |
307,000 |
326,900 |
234,300 |
221,600 |
212,000 |
201,100 |
187,200 |
| (Less) Net natural recharge |
60,800 |
60,800 |
60,800 |
60,800 |
60,800 |
60,800 |
60,800 |
60,800 |
| (Less) Incidental recharge |
70,300 |
82,300 |
80,800 |
39,600 |
35,000 |
34,400 |
33,600 |
32,300 |
| (Less) Cuts to aquifer |
0 |
0 |
5,100 |
32,900 |
35,800 |
37,700 |
41,400 |
45,100 |
| (Less) Extinguished credits |
0 |
0 |
11,700 |
8,400 |
7,900 |
7,600 |
0 |
0 |
| Actual Overdraft |
134,200 |
163,900 |
168,500 |
92,600 |
82,100 |
71,500 |
65,300 |
49,000 |
| (Less) Remediation water |
0 |
0 |
8,400 |
7,000 |
6,500 |
6,500 |
6,500 |
6,500 |
| (Less) Allowable groundwater |
0 |
0 |
10,000 |
32,200 |
34,700 |
36,200 |
36,400 |
36,400 |
| Accounting Overdraft |
134,200 |
163,900 |
150,100 |
53,400 |
40,900 |
28,800 |
22,400 |
6,100 |
NOTE:
all units are acre-feet unless otherwise noted.
|
Source:
Arizona Department of Water Resources, Draft Third Management
Plan, Tucson AMA, 1998. |
|