Westborough Water District
2263 Westborough Boulevard
South San Francisco, California 94080-5406
Phone: (650) 589-1435 Fax: (650) 589-5167
Web: westboroughwater.com
Service Area
The Westborough Water District is located within the City of South San Francisco in north San Mateo County. The District provides both water and sewer service, and has an agreement with the North San Mateo County Sanitation District for sewage disposal and facility maintenance.
System
Profile
|
Area Size |
1 square mile |
|
Service Population |
13,486 |
|
Number of Accounts |
3,952 |
|
Number of SF RWS Connections |
1 |
|
Connections To SF RWS Mains |
San Andreas 1, 2, and 3 |
|
Avg. Day Demand (mgd) |
0.68 |
|
Avg. Day Purchases From SF RWS (mgd) |
0.68 |
|
% Demand Met With SF RWS Supplies |
100% |
|
Maximum Local Water Production (mgd) |
0 |
|
Alternative Supply Sources |
None |
|
Interties With Other Agencies |
North Coast CWD, Daly City |
|
Local Storage (mg) |
6.5 |
|
Days of Storage |
6.5 - All zones can meet the required 8 hr. coverage. During emergencies, District also has access to an additional 3.5 mg in storage owned by North Coast WD. |
Summary
The Westborough Water District receives its entire water supply from the San Francisco Public Utilities Commission through a single 6” turnout located on Westborough Boulevard. This water is distributed to 3 Skyline storage tanks located at the north end of the district, from which the Skyline Pump Station pumps water to the Christen Hill Reservoir for gravity distribution to Zone 3, and the Main Water Pump Station pumps water to Zones 1 and 2.
The Christen Hill Reservoir is shared with the North Coast County Water District.
The WCWD distribution system includes 3 storage tanks, 2 pumping stations, 5 pumps, and 24 miles of mains. In addition to the Christen Hill Reservoir intertie with NCCWD, the district has an intertie with Daly City.
Water Supply and Demand
|
Supply by Source |
Actual |
Actual |
Actual |
Actual |
|
San Francisco Water |
373,994 |
301,090 |
339,960 |
332,246 |
|
Local Groundwater |
0 |
0 |
0 |
0 |
|
Surface Water |
0 |
0 |
0 |
0 |
|
Recycled Water |
0 |
0 |
0 |
0 |
|
Other |
0 |
26,041 |
0 |
0 |
|
Total |
373,994 |
327,131 |
339,960 |
332,246 |
|
mgd equivalent |
0.77 |
0.67 |
0.70 |
0.68 |
|
|
|
|
|
|
|
Demand by Sector |
|
|
|
|
|
Residential |
298,605 |
272,559 |
261,062 |
264,166 |
|
Commercial/Industrial |
28,811 |
30,987 |
33,612 |
34,131 |
|
Other |
0 |
0 |
0 |
0 |
|
Dedicated Irrigation |
43,134 |
35,092 |
26,790 |
39,905 |
|
Non-Revenue Water |
3,435 |
-11,507 |
19,239 |
-5,956 |
|
Total |
373,994 |
327,131 |
339,960 |
332,246 |
|
mgd equivalent |
0.77 |
0.67 |
0.70 |
0.68 |
|
|
|
|
|
|
|
Per Capita Use |
Actual |
Actual |
Actual |
Actual |
|
Residential |
45 |
41 |
40 |
40 |
|
Gross |
57 |
50 |
52 |
50 |
Facilities and Distribution
Storage Reservoirs
|
Designation |
Type |
Capacity (mg) |
|---|---|---|
|
SS Tank 1 |
Steel |
1.5 |
|
SS Tank 2 |
Steel |
2.5 |
|
SS Tank 3 |
Steel |
2.0 |
|
CH Reservoir |
Steel |
0.5 |
|
Total |
|
6.5 |
Interties
|
Name |
No. |
Diameter |
|
North Coast |
1 |
8 |
|
Daly City |
1 |
12 |