HomeMy WebLinkAbout13-Discuss the Status of Water System Supervisory Control and Data Acquisition (SCADA) Replacement ProjectAgenda Item # 13
WORKSHOP
To: Board of Directors
From: Mark Thomas
Date: May 02, 2012
Subject: Discuss the Status of Water System Supervisory Control and Data
Acquisition (SCADA) Replacement Project
1. WHY THIS MATTER IS BEFORE THE BOARD
This workshop provides the Board with an update on the Water System Supervisory
Control and Data Acquisition system (SCADA) replacement project.
2. HISTORY
In February 2009, a workshop was held on the Water System's Supervisory Control
and Data Acquisition (SCADA) system. The three older SCADA systems were built in
the early 1990's and do not meet current industry standards. SCADA systems
normally last 6 to 10 years. Our present SCADA system is nearing 20 years. The new
SCADA system will control the delivery of water and operate in the most energy
efficient manner.
In July 2009, the Board awarded a contract to Carollo Systems LLC for engineering
services for the first two phases of the SCADA replacement project. Phase 1 was to
collect system information by evaluating the communication for a new water SCADA
system and investigating the use of the existing Electric system SCADA servers.
Phase 2 was to design, prepare specifications, and cost estimates for Phase 3 of the
new Water SCADA system.
PHASES
DESCRIPTION
Phase 1
Preliminary investigative Services
Phase 2
SCADA System Design Service
Phase 3
Construction and Implementation Service, including
System Programming and Construction Management
3. NEW INFORMATION
Carollo Systems compiled a Technical Memorandum (TM), included as Attachment 1,
that summarizes the results of the activities performed in Phase 1 and 2. The TM
discusses why the District should upgrade, general and basic SCADA system
requirements, network communication, and integrated energy management features.
Carollo Systems has prepared designs for a control panel, remote terminal unit (RTU),
and network communication. Also included in the TM was an engineer's cost estimate
for Phase 3. Phase 3 will be divided into 4 parts. This methodology would provide the
District with the flexibility to develop, execute, and control cash flow for the
replacement of the remaining SCADA system and related RTUs. This would also give
staff time to perform all Phase 3 work in-house, and provide a cost savings of
$670,000 compared to the Carollo System Engineering cost estimate.
The timeline is:
• May 2012 — Request For Bids (RFB) for 10 RTUs
• May 2012 — Request For Proposal (RFP) for radios and communication network
• May 2012 — California Multiple Award Schedule (CMAS) purchase for the
proposed hardware and software computer equipment
• June 2012 — Programming
• November 2012 - Construction
• May 2013 - First testing of the Phase 3A SCADA system
4. FISCAL IMPACT
Phase 3A would replace and consolidate two of the four different SCADA systems
(Donner Lake and Glenshire).
• Purchase and Install 10 RTUs $250,000
• Ethernet Communication Network $35,000
• Engineering Services to include implementation, programming,
configuration, start-up testing and training $250,000
• System Materials (hardware and software) $150,000
• Project Contingency, Price Escalation and Spare Parts $117,000
Total Cost of Phase 3A $802,000
As funds become available, Phases 3B, 3C, and 3D could move forward. The
projected cost for these phases are:
• 3B Purchase and Install 7 RTUs $301,500
• 3C Purchase and Install 13 RTUs $544,000
• 3D Purchase and Install 15 RTUs $617,700
The cost for the total SCADA project is projected to be $2,265,200.
In the Budgets for FY12 and FY13, approximately $2,000.000 has been appropriated
for the Water SCADA system replacement project.
5. RECOMMENDATION
Receive this report and provide comments to staff.
Michael D. Holley
General Manager / Water Utility Manager