HomeMy WebLinkAbout06 SCADA SYSTEM 04-19-99&G E N D ?
D AT=_: APRIL 19, 1999
NO. 6
4-19-99
TO:
FROM'
SUBJECT:
WILLIAM A. HUSTON, CITY MANAGER
PUBLIC WORKS DEPARTMENT/WATERDIVISION
PROFESSIONAL SERVICES AGREEMENT FOR SUPERVISORY CONTROL AND
DATA ACQUISITION (SCADA) SYSTEM
ISUMMARY
This action is the approval of a Services A~eement in the amount of $329,200 with Shasta Electric, LP for
providing the necessary services for the systems integration and installation of a SCADA system for the City's
water system.
RECOMMENDATION
That the City Council authorize the Mayor and City Clerk, subject to final City Attorney approval, to execute the
Professional Services Agreement with Shasta Electric, LP for services to provide integration and installation of a
SCADA system for the City's water system.
FISCAL IMPACT
There are sufficient funds within the Water Services Division budget for completion of the SCADA System
Improvements.
BACKGROUND
The City of Tustin operates its water system using a Supervisory Control and Data Acquisition (SCADA)
System to monitor and control 17 remote water sites. Normal operation is through the SCADA system,
however, the system has the ability to be operated manually. These 17 sites include reservoirs, booster pump
stations, groundwater wells, and turnout connections to East Orange County Water District, along with the Main
Street and 17~ Street Water Treatment Plants.
The existing system includes hardware and.software provided by Phoenix Control Systems, Inc. Each of the 17
remote sites contains a micro-processor based unit which controls the remote site and communicates over
telephone lines to the Central Computer located at the Water Services Division, Main Street office. The Central
Computer is a personal computer that operates under the OS-2 operating system.
Professional Services Agreement ~or SCADA System
April 19, 1999
Page 2
In 1998 the City was informed by Phoenix Control Systems, Inc. that the system was not Y2K compliant and
that it would require major upgrades to the programming of both the Central Computer and all 17 remote sites.
The City also learned that remote units originally manufactured by Texas Instruments were no longer being
manufactured and spare parts were becoming scarce.
ASL Consulting Engineers, the City's Program Manager, and Heyer & Associates, a firm with extensive
SCADA design experience, were hired to develop a solution to the water system's Y2K problem. During the
investigation it became apparent that it would be more cost effective to replace the existing system rather than
modify the old system.
The SCADA system allows for remote operations of all the City's water facilities. Alarms are monitored from
each site and if a problem occurs, such as a pump failure or loss of power, the central station and City operators
are informed. This SCADA system allows the water facilities to be operated after hours and/or weekends
without operators being on duty. Loss of the SCADA system would require manual operation of the system that
would be more costly. In addition, treatment facilities and groundwater wells would have to be operated less
and more expensive imported water would have to be purchased.
All components of the new system will be Y2K compliant. In addition, the new Central Computer will work in
a Microsoft Windows NT environment and will be compatible with other City computer equipment. This will
allow for ease of use, sharing of data and report generation.
DISCUSSION
Requests for Proposals Were sent to four experienced and qualified system integrators. The request was also
published in the Tustin Weekly. Written proposals were received from the following firms:
· Shasta Electric, LP
· Control Manufacturing Corporation
The other two firms declined to submit a proposal due to their current large backlog of Y2K type work.
·
A selection committee consisting of City staff and the Program Manager determined that, based on
qualifications and recent experience with similar projects, Shasta Electric, LP is the most qualified firm to
perform the requested work. Shasta Electric, LP and their project team have extensive experience with SCADA
system integration and installation similar to the proposed project.
Professional Services Agreement Ior SCADA System
April 19, 1999
Page 3
Following is a tentative schedule for the project:
Commence Work
Bench Test Equipment & Programming
Field Installation
Start-up & Testing
System Training
Tim D. Serle;~
Director of Public Works/City Engineer
04/30/99
06/10/99
09/30/99
10/30/99
12/01/99
Gary R. Veeh
Water Services Manager