San Bruno, City of

Public Works - Water Division
567 El Camino Real

San Bruno, California  94066

Phone: (650) 616-7065                               Fax: (650) 794-1443

Web: sanbruno.ca.gov

 

Service Area

 

The City of San Bruno is primarily an urban residential community located in San Mateo County with low density residential land uses in the west hillside areas and high density residential, commercial, and institutional land uses in the east towards San Francisco Bay.

 

System

 

Profile

 

Area Size

6.1 square miles

Service Population

 44,745

Number of Accounts

11,206

Number of SF RWS Connections

5

Connections To SF RWS Mains

Crystal Springs # 2 and #3, San Andreas 1, 2, and 3, Sunset Pipeline

Avg. Day Demand (mgd)

2.77

Avg. Day Purchases From SF RWS (mgd)

2.62

%  Demand Met With SF RWS Supplies

94.56%

Maximum Local Water Production (mgd)

1.90

Alternative Supply Sources

Local Groundwater

Interties With Other Agencies

North Coast CWD, CWS - South San Francisco

Local Storage (mg)

8.3

Days of Storage

2.5 - 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. Well water could meet partial demand in an emergency.

 

Summary

 

The City of San Bruno water supply comes from three different sources – surface water purchased from San Francisco Public Utilities Commission (SFPUC), surface water purchased from North Coast County Water District (NCCWD), and ground water produced from the City’s wells.

 

The San Bruno Water system consists of 5 surface water supply turnouts, 4 active groundwater wells, 8 storage tanks, 13 pressure zones, 8 booster pump stations, 31 pressure regulating stations, most of which are equipped with pressure reducing valves that regulate water from high pressure zones to lower pressure zones and approximately 116 miles of water mains ranging in sizes from 2 to 18 inches diameter.

 

Water Supply and Demand

 

Supply by Source

Actual
FY 20-21
(ccf)

Actual
FY 21-22
(ccf)

Actual
FY 22-23
(ccf)

Actual
FY 23-24
(ccf)

SF RWS - Customary

444,989

507,220

593,241

451,523

San Francisco Water - Supplemental

883,411

0

0

824,756

Local Groundwater

165,404

961,490

845,341

56,706

Surface Water

0

0

0

0

Recycled Water

0

0

0

0

Other

12,773

12,040

14,362

16,720

Total

1,506,577

1,480,750

1,452,944

1,349,705

mgd equivalent

3.09

3.03

2.98

2.77

 

 

 

 

 

Demand by Sector

 

 

 

 

Residential

988,676

1,032,586

944,436

951,806

Commercial/Industrial

235,600

269,983

247,539

262,037

Other

82,914

72,182

58,940

61,951

Non-Revenue Water

199,387

105,999

187,667

73,911

Total

1,506,577

1,480,750

1,438,582

1,349,705

mgd equivalent

3.09

3.03

2.95

2.77

 

 

 

 

 

Per Capita Use

Actual
FY 20-21
(gpcpd)

Actual
FY 21-22
(gpcpd)

Actual
FY 22-23
(gpcpd)

Actual
FY 23-24
(gpcpd)

Residential

46

48

44

44

Gross

70

68

67

62

 

Facilities and Distribution

Storage Reservoirs

 

Designation

Type

Capacity (gallons)

Storage Tank 1

Steel

2,500,000

Storage Tank 3

Concrete

2,000,000

Storage Tank 4

Steel

1,000,000

Storage Tank 6

Steel

400,000

Storage Tank 6A

Steel

1,000,000

Storage Tank 7

Steel

400,000

Storage Tank 9

Steel

500,000

Storage Tank 10

Steel

500,000

Total

 

8,300,000

 

Wells

 

Name

Capacity (mgd)

Status

Well 15**

0.26

Active

Well 16**

0.72

Active

Well 17*

0.40

Active

Well 18**

0.29

Active

Well 20**

0.85

Active

Total

2.52

 

 

Interties

 

Name

No.

Diameter
(in.)

North Coast

2

21

CWS

1

8