HomeMy WebLinkAbout07-17-2012 c2 scada system up grade projectMeeting Date
July . 17, 2012 .
Item Numberry 2
counci lac cn Oa R€poRt
CITY OF SAN LUIS OBISP O
FROM :
Carrie Mattingly, Utilities Directo r
Prepared By :Jennifer Metz, Utilities Project Manage r
SUBJECT :DESIGN SERVICES FOR SCADA SYSTEM UPGRADE PROJECT ,
SPECIFICATION #91062 — REQUEST FOR PROPOSAL S
RECOMMENDATIO N
1.Approve the request for proposals (RFP) for professional engineering services for the desig n
of SCADA System Upgrade Project, Specification #91062, and authorize its issuance, and ;
2.Authorize the City Manager to award a contract if the selected proposal is within th e
approved budget of $400,000 .
DISCUSSION
Backgroun d
Supervisory Control and Data Acquisition (SCADA) systems include elements of compute r
programming, fiber optic networks, complex databases, and human-machine interface screens .
Through SCADA, system equipment is remotely monitored to ensure it is operating within pre-se t
ranges . Staff receives notice of equipment failures via remotely sent alarms and is able to remotely
perform some operational changes through SCADA : SCADA systems improve emergency respons e
time to equipment failures .
In December 2007, the City contracted with DLT&V Systems Engineering to evaluate th e
existing SCADA systems utilized by the Utilities Department to insure reliable and efficien t
operations of the water and wastewater systems . The SCADA System Upgrade Assessmen t
Report evaluated five separate SCADA systems used for operations for the Water Treatmen t
Plant, Whale Rock Reservoir, Water Reclamation Facility, Wastewater Collection System, an d
the Water Distribution System . While the report identifies recommended improvements for al l
five systems, the most pressing needs were identified for the Whale Rock Reservoir and Wate r
Distribution System .
The SCADA System Upgrade Assessment Report was presented to Council at its regular meetin g
of April 7, 2009 . As part of the 2009-11 Financial Planning process, in June 2009 Council
approved a capital project to upgrade the SCADA systems for Whale Rock Reservoir and th e
Water Distribution System .
While preparing the Request for Proposals for Design Services in 2010, it became eviden t
developing the proposal was more complex than anticipated . Extensive research on data no t
provided in the SCADA upgrade report was necessary, time-consuming, and challenging t o
complete . Significant use of resources from Finance & Information Technology and Utilitie s
Departments were necessary to ensure the detailed scope of work included in the RF P
(Attachment 1) accurately reflected the needs of the City .
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SCADA System Need s
The Whale Rock and Water Distribution SCADA systems are increasingly unreliable due to ag e
and lack of available replacement parts . The current Water Distribution SCADA system i s
missing key monitoring, data acquisition, and alarm capabilities at critical control valves tha t
provide water into the "downtown" pressure zone that would minimize the risk of multiple wate r
mains breaks such as those that have occurred several times in recent years . The SCADA System
Upgrade Assessment Report recommended these two systems receive highest priority .
Whale Rock Reservoir System .The Whale Rock Reservoir SCADA system is about 20 year s
old and was installed and programmed by in-house staff . This system monitors and controls th e
two pump stations along the 17-mile pipeline from Whale Rock Reservoir to the City's Wate r
Treatment Plant . The pipeline also has turnouts along the way that provide water deliveries to th e
Cayucos Water Treatment Plant (County), the Dairy Creek Golf Course, the California Men's
Colony, and raw water for Cal Poly agricultural operations . The existing Whale Rock syste m
utilizes a single DOS based 386 MHz computer and communicates to the remote sites vi a
dedicated leased telephone lines .
While this system has performed well for many years, the system is very old and staff will n o
longer be able to maintain it in the future due to outdated hardware and software systems .
Several SCADA failures have occurred at the main site as well as the remote pump stations . Th e
leased lines are still recommended as the preferred communication method due to the unsuitabl e
terrain for wireless communication, but are recommended to be upgraded to obtain the bes t
performance for the new system . The SCADA System Upgrade Assessment Report recommends
that all of the controllers on this system be replaced and reprogrammed and the computer syste m
be upgraded to a Windows-based system .
Water Distribution System .The Water Distribution System was also installed and programme d
in-house, is outdated and reaching the end of its service life . Currently, this system has minima l
operational oversight and data collection and no alarm capability . This system monitors wate r
storage tank levels and provides this information to the Corporation Yard for use by Wate r
Distribution and Treatment Plant operators .
There is no control capability or data tracking for the pump stations or critical control valves i n
the City water system . Most of the pump stations and the associated storage tanks operate base d
on pressure switches at the pump station or tank site . A few of the pump stations communicat e
via radios and the controllers at the pump stations control the pump operations based on th e
water level in the tank. At the Corporation Yard there is a single DOS based computer tha t
displays some of the tank water levels, however, not all tank sites are displayed on the system .
Having minimal monitoring and data acquisition, and no control or alarming capability, create s
operational and system reliability concerns that must be addressed. The SCADA System Upgrade
Assessment Report recommends that all of the controllers be updated with the latest technolog y
and that the DOS-based systems be upgraded to a Windows-based system . In addition, th e
SCADA System Upgrade Assessment Report recommends that the licensed radio systems b e
replaced with an unlicensed radio system and the Cuesta Peak repeater be replaced, potentiall y
with a repeater at South Hill. The ongoing lease cost of the Cuesta Peak site is currently $3,30 0
annually shared between the Water and Sewer Funds .
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With the SCADA System Upgrade Project, operators will be able to monitor and actuate
equipment remotely by telemetry from the Water Shop at the City's Corporation Yard t o
improve staffing efficiency . The project will provide measurement, storage and trending of dat a
such as reservoir and tank volumes, enabling operational optimization of existing infrastructure ,
minimization of supply and pumping costs, and contribute valuable information related t o
maximization of water quality and leak prevention .
CIP Project Summar y
The design for the SCADA System Upgrade Project will cost $400,000 for professiona l
engineering services, including construction phase design support services, and is estimated t o
cost $1,850,000 for construction and system integration services .
Evaluation and Selection Proces s
Proposals for these design services are due no later than August 16, 2012 . Based on th e
evaluation criteria set forth in the RFP, proposals will be reviewed and finalists will be invite d
for a follow-up presentation/interview before a review committee . The review committee will b e
composed of staff from the City's Utilities and Finance/Information Technology departments .
Reference checks will be conducted . Based on the results of the selection process,a
recommendation will be made to the City Manager to award the contract . It is anticipate d
contract award will be made during September and that work would begin on the project i n
October 2012 .
Prospective Proposer s
In addition to publishing a formal notice requesting proposals, the RFP will be mailed to firm s
specializing in these services . A list of prospective firms is part of the RFP .
FISCAL IMPAC T
A total of $400,000 is budgeted for the design phase of this project, of which $75,000 is from th e
Whale Rock Fund and $325,000 is from the Water Fund . These funds were approved as part o f
the 2009-11 Financial Plan, Capital Improvement Plan, Appendix B, pages 3-99 through 3-101 .
CONCURRENCE S
The Finance and Information Technology Department provided oversight in the development o f
this report and concurs with the recommendations .
ATTACHMEN T
Request for Proposals, Specification #91062
city o f
san Luis oBisp o
919 Palm Street ■San Luis Obispo,CA 9340 1
Notice Requesting Proposals for th e
City of San Luis Obispo
Utilities Department
DESIGN SERVICES FOR
SCADA SYSTEM UPGRADE PROJEC T
Specification No . 9106 2
July 201 2
The City of San Luis Obispo is requesting sealed proposals for DESIGN SERVICES FO R
SCADA SYSTEM UPGRADE PROJECT pursuant to Specification No . 91062 . All proposal s
must be received by the Public Works Department at 919 Palm Street, San Luis Obispo, C A
93401 by 4 :00 P .M . on August 16, 2012 .
Proposals received after said time will not be considered. To guard against premature opening ,
each proposal shall be submitted to the Public Works Department in a sealed envelope plainly
marked with the proposal title, specification number, Consultant name, and time and date of the
proposal opening . Proposals shall be submitted using the forms provided in the specificatio n
package .
To obtain a specification package :
■ Download from the City's Web site www .slocity.org - Bids & Proposals pag e
■ Pick up a copy of the RFP at the above addres s
■Mail a request to the City of San Luis Obispo Public Works Department at the above addres s
■Fax a request to the City of San Luis Obispo at 805-781-7537 — include company name ,
street address, phone, fax, email and the name of the contact person .
There will be a non-mandatory pre-proposal meeting on Tuesday,July 31, 2012 .Interested
proposers should meet at 10 :00 am at the Utilities Department Office, 879 Morro Street, Sa n
Luis Obispo to ask questions of City staff regarding the project .
Questions may be submitted to Jennifer Metz via e-mail at jmetz@slocity .org until August 10 ,
2012 .All questions will be answered and distributed to all interested parties .
The City of San Luis Obispo is committed to including disabled persons in all of our services, programs and activities .
Telecommunications Device for the Deaf (805) 781-7410 .
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A .Background &Scope of Work 1
Al . Background
A2.Scope of Work
A3.Schedule / Cos t
B . General Terms &Conditions 1 5
B1.Proposal Requirement s
B2.Contract Award and Executio n
C . Proposal Content &Selection Process
1 7
Cl . Proposal Content
Submittal Forms
Qualification s
Work Program
Compensation
Proposal Length and Copie s
C2 . Proposal Evaluation & Selectio n
Proposal Review Criteri a
Proposal Review and Award Schedul e
D . Agreement 1 9
E . Insurance Requirements 2 7
F . Proposal Submittal Forms
2 9
Fl . Acknowledgements
F2.Insurance Certificate
F3.Reference s
F4.Statement of Past Contract Disqualification s
Attachment A :SCADA Upgrade Assessment Report
A
DLT&V, 200 9
Attachment B :Radio Survey
B
Sterling Communications, 2012
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Specification No . 9106 2
TABLE OF CONTENTS
City of San Luis Obisp o
Specification No . 91062
Section A
BACKGROUND & SCOPE OF WOR K
Al .BACKGROUN D
The day to day operation of the City's water supply and distribution system is managed by skille d
staff that uses their experience and expert judgment to adjust control elements such as pumps an d
valves to insure customer demands on the systems are met, to insure regulatory compliance, an d
to minimize energy costs . When an unplanned event such as a water main break occurs, operator s
often have to respond in a reactive manner, with minimal information provided by customer s
impacted by the event . Because the City's Utilities Department is striving to improve standards
of service delivery and increase customer satisfaction, there is a need to shift from this reactiv e
approach to a more proactive management strategy .
Whale Rock Reservoi r
Whale Rock Reservoir is a 40,662 acre-foot
reservoir created by the construction an earthe n
dam on Old Creek near the town of Cayucos in
San Luis Obispo County . Water is delivered to th e
City through over 17 miles of 30-inch pipeline an d
two pumping stations . The pipeline has turnouts
that provide water deliveries to the Cayucos Water
Treatment Plant and the Dairy Creek Golf Cours e
(both operated by San Luis Obispo County), th e
California Men's Colony, raw water for Californi a
Polytechnic State University's agricultural im -:
operations, and the City of San Luis Obispo .
Whale Rock Reservoi r
The Reservoir's existing Supervisory Control and Data Acquisition (SCADA) system is about 2 0
years old and was installed and programmed by in-house staff . The SCADA system monitors an d
controls the two pump stations along the pipeline from the Reservoir to the City's Water
Treatment Plant (WTP). The SCADA system utilizes a single DOS-based 386 MHz compute r
located at the Whale Rock Dam Office and communicates to the remote sites over dedicate d
leased telephone lines .
Water Distribution Syste m
The City has over 180 miles of water transmission and distribution piping ranging from two- t o
30-inches in diameter . The City has two main water transmission systems and 16 pressure zones .
The upper service area, primarily the northern part of the City, makes up approximately half o f
the overall water demand . Treated water is conveyed from the WTP to the upper area via a pum p
at the WTP . The remainder of the City lies in the lower service area and is fed by gravity fro m
the reservoir at the WTP . Pressure reducing valves provide optimum service pressure in areas of
lower elevation .
1
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City of San Luis Obisp o
Specification No . 91062
System storage is provided in 12 reservoirs located throughout the City (See Figure 1) ranging i n
size from 40,000 gallon to 7 .5 million gallons . The reservoirs are a combination of above grad e
steel tanks and underground concrete reservoirs with a total combined storage capacity o f
approximately 26 million gallons . The reservoirs range in age from three years (Bishop Tank) t o
68 years in age (Reservoir 2).
The Water Distribution System's existing SCADA system includes a single computer using a
DOS-based human machine interface (HMI) located in the Water Shop at the City's Corporatio n
Yard at 25 Prado Road . The existing SCADA system displays information on four of the City's
reservoir levels allowing limited remote monitoring of the distribution system . No information i s
transmitted on the operation of the City's pump stations and pressure relief valves (PRVs). Th e
existing SCADA system also has no alarming or control capability . With limited remot e
monitoring capability in place, equipment failures and water main breaks cannot be detected or
evaluated . Staff physically inspects each location to insure proper facility operations . The
communication network for the existing SCADA system utilizes a remote, leased facility o n
Cuesta Peak north of the City as a repeater site and a licensed radio network .
SCADA Assessmen t
In December 2007, the City of San Luis Obispo (City) contracted with DLT&V System s
Engineering to prepare an assessment of the City's SCADA systems . The study recommende d
improvements to the Whale Rock Reservoir and Water Distribution SCADA systems . Both o f
these systems are very old, outdated and some replacement components are no longer available .
As described above, much of the water distribution system is not monitored remotely and doe s
not provide notification of problems which result in impacts to the City's water customers . Th e
product of that effort,SCADA System Upgrade Assessment Report,is provided as Attachment A .
The City is moving forward with an upgrade of th e
SCADA systems serving the Whale Rock Reservoir and
Water Distribution System only .These facilities ar e
described in Table 1 . The project will update the City's
aging SCADA system with a modern system that can b e
expanded to meet future needs . With the SCAD A
System Upgrade Project, operators will be able t o
monitor and actuate equipment remotely by telemetr y
from the Water Shop at the City's Corporation Yard t o
improve staffing efficiency. The project will provid e
measurement, storage and trending of data such as
reservoir and tank volumes, enabling operationa l
optimization of existing infrastructure, minimization o f
supply and pumping costs, and contribute valuabl e
information related to maximization of water quality an d
leak prevention. The City is not pursuing an upgrade t o
the SCADA systems at the Water Treatment Plant ,
Water Reclamation Facility and Wastewater Collection
Serrano Tank.
System as part of this project .
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