Hayward, City of

Public Works Department - Utilities Division

777 B Street

Hayward, California  94541

Phone: (510) 583-4727                               Fax: (510) 583-3610

Web: www.hayward-ca.gov

 

Service Area

 

The City of Hayward is located in south Alameda County on the eastern shore of the San Francisco Bay.

 

System

 

Profile

 

Area Size

62.5 square miles

Service Population

152,889

Number of Accounts

35,146

Number of SF RWS Connections

4 (two at each turnout)

Connections To SF RWS Mains

BDPL 1 and 2

Avg. Day Demand (mgd)

13.60

Avg. Day Purchases From SF RWS (mgd)

13.60

%  Demand Met With SF RWS Supplies

100.0%

Maximum Local Water Production (mgd)

0

Alternative Supply Sources

Local Groundwater (Emergency Use Only)

Interties With Other Agencies

ACWD, EBMUD

Local Storage (mg)

29.4

Days of Storage

1.7 - All zones can meet the 8 hr criteria either separately or by pumping from zones with excess capacity. Well water could be used in an emergency.

 

Summary

 

The City of Hayward obtains its entire water supply from the SF RWS at two turnouts, one at the Irvington Portal and one at the Newark valve lot. The distribution system consists of 6 main pressure zones, 14 water storage tanks, and 7 pump stations delivering water to upper pressure zones. The transmission system attached to the Hetch Hetchy aqueduct is complemented by two booster pump stations: the Decoto pump station, located along the Mission Boulevard 24” transmission main, and the Hesperian pump station, located along the Hesperian Boulevard 42” transmission main. Multiple pressure reducing stations interface between the transmission and distribution systems. Five emergency water wells can be brought online in the event of a transmission system failure.

 

There is at least one storage tank located within each pressure zone, with pump stations to deliver water to the higher elevation zones. Water is delivered to the 250 pressure zone from SF RWS with sufficient pressure under most conditions. Storage is located in the eastern portion of the City, east of Mission Blvd. The Decoto and/or Hesperian pump stations boost pressure in the 250 zone when necessary. All five emergency wells are located west of Mission Blvd., as are three of the City’s four emergency interties.

 

Water Supply and Demand

 

Supply by Source

Actual
FY 11-12
(ccf)

Actual
FY 12-13
(ccf)

Actual
FY 13-14
(ccf)

Actual
FY 14-15
(ccf)

San Francisco Water

7,610,980

7,552,956

7,402,067

6,634,616

Local Groundwater

0

0

0

0

Recycled Water

0

0

0

0

Other - EBMUD & ACWD (Temporary supplies)

0

0

0

0

Total

7,610,980

7,552,956

7,402,067

6,634,616

mgd equivalent

15.60

15.48

15.17

13.60

 

 

 

 

 

Demand by Sector

 

 

 

 

Residential

4,273,560

4,213,609

4,157,114

3,609,950

Commercial/Industrial

1,532,401

1,491,773

1,630,978

1,452,978

Other

379,585

475,964

383,686

306,320

Dedicated Irrigation

954,253

997,089

1,012,601

744,222

Unaccounted for*

471,181

374,521

217,688

521,146

Total

7,610,980

7,552,956

7,402,067

6,634,616

mgd equivalent

15.60

15.48

15.17

13.60

 

 

 

 

 

Per Capita Use

Actual
FY 11-12
(gpcpd)

Actual
FY 12-13
(gpcpd)

Actual
FY 13-14
(gpcpd)

Actual
FY 14-15
(gpcpd)

Residential

60

58

56

48

Gross

106

104

100

89

*Staff believes that unaccounted for water is not representative of true system losses, but rather reflects in part aging meter stock. A water loss study was recently completed, and correction actions are underway including replacement of under-performing meters and comprehensive leak detection (as reflected in reduced FY11-12 unaccounted for amount).

 

Facilities and Distribution

Storage Reservoirs

 

Designation

Type

Capacity (gallons)

 

Designation

Type

Capacity (gallons)

Treeview

Concrete

3,000,000

 

250 West

Concrete

500,000

Maitland

Concrete

1,000,000

 

Highland 500

Concrete

3,000,000

North Walpert

Concrete

1,500,000

 

Highland 750

Steel

4,400,000

South Walpert

Steel

5,300,000

 

Highland 1000

Steel

2,200,000

D Street

Concrete

1,000,000

 

Highland 1285

Steel

1,800,000

High School

Concrete

1,000,000

 

Garin Hills

Steel

1,250,000

250 East

Concrete

500,000

 

Highland 1530

Steel

2,900,000

 

 

13,300,000

 

Total

 

29,350,000

 

Wells

 

Name

Capacity (mgd)

Status

Well A

1.7

Standby (Emergency)

Well B

2.9

Standby (Emergency)

Well C

4.6

Standby (Emergency)

Well D

1.4

Standby (Emergency)

Well E

3.0

Standby (Emergency)

Total

13.6

 

 

Interties

 

Name

No.

Diameter
(in.)

EBMUD*

3

10, 12, 36**

ACWD

1

12

**Also capable of hydrant-to-hydrant interconnection with EBMUD for firefighting purposes during emergencies.

**Regional intertie between SF RWS and EBMUD.