 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
  
| ||||||||||||||
 |
 |
 |
 |
 |
 |
||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||||||||
|
|
|
|
|
|
|
||||||||||
facts July 2009 |
||
Sweetwater Authority Boundaries |
||
|
Gross land area (sq. miles) |
41 |
|
|
Loveland reservoir |
5.1 |
|
|
Service area |
32 |
|
|
San Diego Bay |
3.7 |
|
|
City of San Diego |
0.2 |
|
Service Area |
||
|
Total Service Area (sq. miles) |
32 |
|
|
National City |
7.5 |
|
|
South Bay ID |
24.5 |
|
|
2009 Population estimates (SANDAG) |
||
|
Service area |
total 186,907 |
|
|
South Bay ID |
126,756 |
|
|
National City |
59,341 |
|
Service Connections |
||
|
Total connections |
32,560 |
|
|
Residential |
29,319 |
|
|
Commercial |
2,646 |
|
|
Government/Other |
551 |
|
|
Industrial |
38 |
|
|
Agricultural |
6 |
|
Pipelines |
||
|
Total length |
388 miles |
|
|
6 inch diameter and smaller |
153 |
|
|
8 to 10 inch |
143 |
|
|
12 inch |
54 |
|
|
14 to 16 inch |
14 |
|
|
larger than 16 inch |
24 |
|
|
Average pipe age |
38 years |
|
Public Fire Hydrants |
||
|
Total as of June 2008 |
2,504 |
|
|
Bonita |
447 |
|
|
Chula Vista |
1,283 |
|
|
National City |
774 |
|
Emergency Interconnections & pressure zones |
||
|
Total emergency interconnections |
12 |
|
|
Pressure zones |
16 |
|
Production |
||
|
2008-09 total system production |
22,691 af |
|
|
Local reservoirs |
4,428 af |
|
|
NC wells |
1,945 af |
|
|
Imported water |
12,864 af |
|
|
Groundwater Desalination |
3,454 af |
|
|
Historical use imported (20 yrs) |
55% |
|
|
Maximum daily consumption-98 |
32.0 mgd |
|
|
Average daily consumption |
20.3 mgd |
|
Raw Water Storage |
||
|
Total capacity |
53,466 af |
|
| Aqueduct connection capacity | 64 cfs | |
Treated Water |
||
|
Total storage reservoirs |
25 |
|
|
Total capacity (gallons) |
42,835,200 |
|
|
Concrete reservoirs |
3 |
|
|
Concrete reservoir capacity (gallons) |
32,000,000 |
|
|
Steel tanks |
16 |
|
| Total hydro stations | 6 | |
|
Hydro-pneumatic steel tanks |
6 |
|
|
Tank capacity (gallons) |
10,835,200 |
|
|
Total pump stations |
17 |
|
|
Approximate total pumping capacity (gallons/minute) |
36,000 |
|
| Aqueduct connection capacity | 62 cfs | |
Sweetwater River Watershed |
||
|
Total watershed (sq. miles) |
182 |
|
|
Lower watershed |
38 |
|
|
Middle watershed |
42 |
|
|
Upper watershed |
102 |
|
First Days |
||
|
Kimball Brothers Water |
May 26, 1869 |
|
|
Sweetwater Authority |
Feb. 3, 1972 |
|
|
Sweetwater Authority Operations |
Aug. 10, 1977 |
|
Wholesale Imported Water Cost
|
||
|
Raw water (Tier I & II) |
$527 / $643 |
|
|
Treated water (Tier I & II) |
$695 / $811 |
|
Budget |
||
|
2009-2010 Operating and capital |
$56,487,700 |
|
Water Equivalents |
||
|
1 cubic foot |
7.48 gal. |
|
|
1 acre-foot |
325,850 gal. |
|
|
1 million gallons |
3.07 af |
|
|
1 million gallons/day |
1,120 af/year |
|
Key to Abbreviations |
||
|
af = acre feet |
||
|
mgd = million gallons per day |
||
 |
||