Water
Master Plan
-
BASIN-WIDE
URBAN PURVEYOR WATER DEMANDS
As a component of its Wastewater System Facilities Plan, the District
adopted an Urban Water Management Plan (UWMP).
As recommended in the UWMP, the District plans to implement
approximately $1.2 million in conservation measures within the collected
area of the wastewater system. Water
production data from the UWMP, which was based on actual purveyor use
from 1994 through 1999, will be used to forecast future water demand.
Table ES-1 summarizes existing and future water production.
Table ES-1.
Existing and Build-Out Water Production for Urban Purveyors
| Water
Purveyor |
Existing Average
Daily
Production
|
Build-Out Average
Daily
Production
|
| (mgd) |
(ac-ft/year) |
(mgd) |
(ac-ft/year) |
| LOCSD
|
0.98 |
1,100 |
1.21 |
1,358 |
| Cal Cities |
0.92 |
1,030 |
1.29 |
1,452 |
| S&T Mutual |
0.14 |
150
|
0.14 |
150
|
Total
Purveyor
Production |
2.04 |
2,280 |
2.64 |
2,960 |
LOCSD water system
demands were determined for existing conditions, and were used in the
model to project system performance at build-out.
These demands are summarized in Table ES-2.
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Table
ES-2. Summary of
LOCSD Water System Demands
| Demand
Condition |
LOCSD
Water System Demands |
|
Existing
(MGD)5 |
Build-Out
(MGD) |
| ADD5 |
0.98 |
1.21 |
| MDD5 |
1.96 |
2.42 |
| PHD5 |
3.43
(2,383 gpm) |
4.24
(2,946 gpm) |
|
|
|
| Notes: |
1.
Existing demand based on historical records
2. build-Out demand based on 130 gpcd
3. MDD = ADD X 2.0
4. PHD = ADD X 3.5
5. ADD = Average Daily Demand
MDD = Maximum Daily Demand
PHD = Peak Hour Demand
MGD = Million Gallons per Day |
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