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 located in north San Mateo County. San Bruno is a residential community with regional commercial and light industrial development. The Public Works Water Division’s service area includes the City of San Bruno and unincorporated areas of the County.

 

System

 

Profile

 

Area Size

6.1 square miles

Service Population

 44,409

Number of Accounts

11,503

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)

3.09

Avg. Day Purchases From SF RWS (mgd)

2.72

%  Demand Met With SF RWS Supplies

88%

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. Historically, approximately half of the City’s total water supply came from purchased surface water and remaining supply was produced from the City’s groundwater wells. As of 2016, San Bruno has increased its use of surface water supplies during wet and normal years in accordance with the regional Groundwater Storage and Recovery (GSR) project. The City now receives approximately 90 percent of its supplies from surface water in wet and normal years.

 

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 17-18
(ccf)

Actual
FY 18-19
(ccf)

Actual
FY 19-20
(ccf)

Actual
FY 20-21
(ccf)

San Francisco Water

419,589

420,116

465,406

1,328,400

San Francisco Water - Supplemental

890,214

793,401

922,606

0

Local Groundwater

155,341

139,612

110,306

165,404

Surface Water

0

0

0

0

Recycled Water

0

0

0

0

Other (North Coast CWD)

23,411

21,622

13,148

12,773

Total

1,488,555

1,374,751

1,511,466

1,506,577

mgd equivalent

3.05

2.82

3.10

3.09

 

 

 

 

 

Demand by Sector

 

 

 

 

Residential

944,938

1,032,586

1,041,885

988,676

Commercial/Industrial

271,679

269,983

266,655

235,600

Other

67,522

72,182

90,312

82,914

Non-Revenue Water

204,416

0

112,614

199,387

Total

1,488,555

1,374,751

1,511,466

1,506,577

mgd equivalent

3.05

2.82

3.10

3.09

 

 

 

 

 

Per Capita Use

Actual
FY 17-18
(gpcpd)

Actual
FY 18-19
(gpcpd)

Actual
FY 19-20
(gpcpd)

Actual
FY 20-21
(gpcpd)

Residential

47

48

48

46

Gross

69

63

70

70

 

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