Milpitas, City Of - Bawsca

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Public Works Department

455 East Calaveras Boulevard Milpitas, California 95035-5411

Phone: (408) 586-2600 Fax: (408) 586-3305

Web: ci.milpitas.ca.gov

Service Area

The City of Milpitas is located in northeastern Santa Clara County.

System

Profile

Area Size

13.6 square miles

Service Population

81,773

Number of Accounts

16,599

Number of SF RWS Connections

4 - Sunnyhills (Washington), Calaveras, Main (Hammond), and Gibraltar Tank (intertie).

Connections To SF RWS Mains

BDPL 3 and 4

Avg. Day Demand (mgd)

8.30

Avg. Day Purchases From SF RWS (mgd)

5.32

% Demand Met With SF RWS Supplies

64.17%

Maximum Local Water Production (mgd)

0

Alternative Supply Sources

Santa Clara Valley Water District (SCVWD), South Bay Water Recycling (SBWR), Pinewood Well

Interties With Other Agencies

Alameda County Water District (ACWD), San Jose Water Company (SJWC)

Local Storage (mg)

16.3

Days of Storage

1.4 - All 6 zones can meet the 8 hr criteria, ranging from 9 hours to 31 hours at maximum day.

Summary

The City of Milpitas owns and operates its own water utility. The northern and eastern areas are supplied primarily by the SF RWS, while the remaining areas are supplied by SCVWD. With some exceptions, residents receive SF RWS water, while industrial and commercial areas receive SCVWD water. The City does not blend SF RWS and SCVWD waters under normal operations, but they can be blended during emergency situations.

The City’s distribution system consists of 5 turnouts, 9 pressure regulator valves, 4 emergency pressure regulator valves, 5 pumping stations, 5 storage tanks, and 1 well.

The City has emergency interties with ACWD to the north and SJWC to the south. The City has one well, Pinewood Well, which can provide water to one SF RWS-supplied zone during emergencies. Another well is under construction to supplement water supply during emergencies.

Since 1997, the City has been receiving non-potable recycled water from South Bay Water Recycling (SBWR) Program.

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)

San Francisco Water

2,647,856

2,251,779

2,230,517

2,598,121

Santa Clara Valley WD

1,526,474

1,589,861

1,402,379

1,091,322

Recycled Water

415,177

423,744

342,451

359,585

Other

0

0

0

0

Total

4,589,507

4,265,384

3,975,347

4,049,028

mgd equivalent

9.41

8.74

8.15

8.30

Demand by Sector

Residential

2,152,431

2,036,897

1,960,244

1,988,773

Commercial/Industrial

891,128

792,330

785,640

796,447

Other

103,921

114,066

135,753

129,077

Dedicated Irrigation

753,134

805,639

547,953

661,295

Non-Revenue Water

688,893

516,452

545 757

473,436

Total

4,589,507

4,265,384

3,975,347

4,049,028

mgd equivalent

9.41

8.74

8.15

8.30

Per Capita Use

Actual FY 20-21 (gpcpd)

Actual FY 21-22 (gpcpd)

Actual FY 22-23 (gpcpd)

Actual FY 23-24 (gpcpd)

Residential

57

52

50

57

Gross (Less Recycled Water)

110

97

92

102

Facilities and Distribution

Storage Reservoirs

Designation

Type

Capacity (mg)

SFPUC – Gibraltar

Prestressed Concrete

5.00

SFPUC – Ayer

Prestressed Concrete

5.60

SFPUC – Tularcitos

Steel

0.31

SFPUC – Minnis

Steel

0.35

SCVWD – Gibraltar

Prestressed Concrete

5.00

Total

16.26

Wells

Interties

Name

Capacity (mgd)

Status

Name

No.

Diameter (in.)

Pinewood*

1.7

Active

SCVWD*

41

6 - 24

Total

1.7

SJWC

1

6

*Emergency use

ACWD

2

8

*Emergency and Isolation Valves included.

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