North Coast County Water District
2400 Francisco Boulevard
Pacifica, California 94044-6039
Phone: (650) 355-3462 Fax: (650) 355-0735
Web: nccwd.com
Service Area
The North Coast County Water District serves the northern coastal areas of San Mateo County. The District’s boundaries are nearly the same as those of the City of Pacifica.
System
Profile
|
Area Size |
13.6 square miles |
|
Service Population |
36,426 |
|
Number of Accounts |
13,216 |
|
Number of SF RWS Connections |
1 |
|
Connections To SF RWS Mains |
San Andreas 3 |
|
Avg. Day Demand (mgd) |
2.20 |
|
Avg. Day Purchases From SF RWS (mgd) |
2.16 |
|
% Demand Met With SF RWS Supplies |
98.55% |
|
Maximum Local Water Production (mgd) |
0 |
|
Alternative Supply Sources |
Local Surface Water |
|
Interties With Other Agencies |
San Bruno, Daly City, Westborough CWD |
|
Local Storage (mg) |
18.25 |
|
Days of Storage |
5.8 days - Length of storage based on loss of all sources of supply. All zones can meet the 8 hr criteria either separately or by pumping from zones with excess capacity. San Pedro Creek could meet limited demand in an emergency. |
Summary
100% of NCCWD water comes from one SF RWS connection at San Andreas. There is
a main pump station located on the site of the Harry Tracy WTP, which pumps all the water through a 4 mile pipeline into the Milagra Ridge storage tank located in the Central District area.
The northern portion of the system is supplied by pumping water from the Milagra Ridge Tank site to the Christian Hill tank, then distributing it to the customers via gravity. The southern District’s distribution hub, at Royce Tank Site, is supplied via gravity by the Milagra Ridge Tank. Overall, the system is divided into 34 pressure zones, each separated by pressure reducing valves. At average daily demands, there is enough storage to supply the District with water for up to 7.2 days at typical demands and storage. A small amount of water is conveyed to San Bruno annually as a public customer.
The District's only other water source is the San Pedro Creek. Water rights to the creek are limited to 500 gpm between December 1 and April 30, and to 210 gpm during May. This water requires filtering and minimal treatment at the San Pedro WTP adjacent to the creek before distribution. The San Pedro facility is on line and filters creek water, as allowed by the District’s water rights, for non-potable uses.
Water Supply and Demand
|
Supply by Source |
Actual |
Actual |
Actual |
Actual |
|
San Francisco Water |
1,172,219 |
1,068,893 |
1,024,588 |
1,056,221 |
|
Westborough CWD (SF RWS) |
0 |
0 |
0 |
0 |
|
Recycled Water |
22,198 |
15,744 |
16,151 |
15,536 |
|
Other |
0 |
0 |
0 |
0 |
|
Total |
1,194,417 |
1,084,637 |
1,040,739 |
1,071,758 |
|
mgd equivalent |
2.45 |
2.22 |
2.13 |
2.20 |
|
|
|
|
|
|
|
Demand by Sector |
|
|
|
|
|
Residential |
915,799 |
806,906 |
784,583 |
765,566 |
|
Commercial/Industrial |
82,724 |
90,075 |
89,498 |
88,107 |
|
Other |
56,475 |
75,292 |
65,419 |
75,190 |
|
Dedicated Irrigation |
51,256 |
52,299 |
41,900 |
24,541 |
|
Non-Revenue Water |
88,163 |
60,065 |
59,339 |
118,352 |
|
Total |
1,194,417 |
1,084,637 |
1,040,739 |
1,071,758 |
|
mgd equivalent |
2.45 |
2.22 |
2.13 |
2.20 |
|
|
|
|
|
|
|
Per Capita Use |
Actual |
Actual |
Actual |
Actual |
|
Residential |
49 |
44 |
43 |
43 |
|
Gross |
63 |
58 |
57 |
59 |
Facilities and Distribution
Potable Storage Reservoirs
|
Designation |
Capacity (gallons) |
|---|---|
|
11 Reservoirs |
18,250,000 |
|
Total |
18,250,000 |
Water Treatment Facilities:
Surface Water
|
Designation |
Capacity (mgd) |
|
|
|
|---|---|---|---|---|
|
San Pedro WTP |
0.5 |
|
|
|
Recycled Water
|
Designation |
Capacity (mgd) |
|
|
|
|---|---|---|---|---|
|
Central District |
0.3 |
|
|
|
Interties
|
Name |
No. |
Diameter |
|
Name |
No. |
Diameter |
|
San Bruno |
2 |
10 |
|
Westborough |
3 |
8, 10, 10 |
|
Daly City |
2 |
6, 8 |
|
|
|
|