HomeMy WebLinkAbout02/00/1990, 2 - DESALINATION EVALUATION MEEnNG DATE:
city of $an lu,:, OBISpO _ February 26 1990
Aour.@ COUNCIL AGENDA REPORT
FROM: William T. Hetland Prepared by Allen Short
Utilities Director Water Division Manager
SUBJECT: Desalination Evaluation
RECOMMENDATION:
City Council consider retaining professional engineering services
for evaluating desalination as a viable option to augmenting
current water supplies.
BACKGROUND:
The City of San Luis Obispo is currently in the fourth year of a
water shortage. The city's surface water supplies are approaching
the critical level and the City has implemented a twenty percent
(20%) mandatory water conservation program. Additionally, as the
City began reaching the maximum yields of its reservoir supplies, it
began to look at groundwater as an additional source.
The groundwater development program was initiated and divided into
two phases. Both phases of the groundwater development program are
completed. The wells identified in both phases, have been developed
and are operational. Additionally, to fully utilize groundwater to
its greatest benefit a zonal booster pump station was designed and
installed at the Edna Saddle Reservoir. This pump station allows the
City to move large amounts of groundwater from one area of the City
to another.
As the City's usable water supplies become depleted or contaminated
the conversion of saltwater to usable water for domestic consumption
becomes more attractive as an alternative for the augmentation of
water supplies. The technology for doing this currently exists. The
problem with implementing the technology on a widespread basis is
that it is limited by energy requirements, costs, and environmental
constraints. It is estimated that the cost per acre foot for
desalination ranges from a low of $1,500 to a high of $3, 500
excluding transmission costs. Currently, the City's cost per acre
foot for water ranges from $250 to $350. The cost per acre foot for
proposed water projects such as State Water Project, Salinas Dam
Expansion or Coastal Streams, ranges from $400 to $600. The cost for
desalination is more expensive but it is not locally rain dependent.
To fully evaluate the effectiveness of desalination, staff needs up-
-to-date information and answers to the following questions:
city Of San tuis OBispO
Mi;% COUNCIL AGENDA REPORT
Desalination Evaluation
February 20, 1990
Page 2
1. A description, identification, and evaluation of all alternative
desalination processes.
2. A description, identification and evaluation of the costs of
production.
3 . A description and identification of the permit process, cost, and
schedules.
4. A description and evaluation of water quality standards.
5. A description, identification and evaluation of the delivery
method, pipe sizing, line pressures, plant size and location.
6. A description, identification and evaluation of the methods of
financing.
7. A. description, identification and evaluation of the costs
associated with decommissioning a plant.
8. An evaluation of desalination in comparison to other potential
City water supplies.
9. Preparation of a report which identifies the best managerial
approach to utilization of desalinization as an alternative water
supply.
FINANCIAL IMPACT:
To conduct an evaluation of desalination is estimated not to exceed
$50,000. This project was not originally identified in the 1989-91
Financial Plan and Approved budget. The money has been identified to
come from the water fund balances.
CONSEQUENCES OF NOT TAKING ACTION:
The ability to properly investigate the viability of desalinization
as an alternative long term water supply will be greatly impaired.
Attachment: Draft Request for Proposal for Engineering Services for I
Evaluating Desalination as a Viable Water Supply.
����► ���Il i���� city of San lw. OBISpo
COUNCIL AGENDA REPORT
Desalination Evaluation
February 20, 1990
Page 3
APPROVED:
City A inistrative Officer
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Finance Director
Utilities Director
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Water Division' Manager
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CITY OF SAN .LUIS OBISPO
REQUEST FOR PROPOSAL
FOR ENGINEERING SERVICES
FOR EVALUATING DESALINATION AS A
VIABLE WATER SUPPLY
CSC
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GENERAL NOTICE
The City of San Luis Obispo invites your firm to submit a proposal to ^'
provide engineering services for evaluation of desalination.
Sealed proposals for professional engineering services for the
desalination evaluation will be received by the Clerks office, at
P.O. Box 8100 San Luis Obispo CA, 93403, on or before XXXXXXXXX
Proposals received after that date will not be accepted. Contacts
regarding the development of a proposal and the status of interviews
shall be made with Allen Short, Water Division Manager.
Please submit your proposal in six (6) copies to the attention. of the
Water Division Manager. The proposals shall be submitted in
envelope(s) clearly marked indicating the project title.
BACKGROUND
The City of San Luis Obispo is located on the Central Coast
approximately at the half way point between San Francisco and Los
Angeles. Historically, the City has used its two surface water
supplies to provide domestic water to the citizens of San Luis
Obispo. With increasing water demands and limited rainfall over the
past four (4) years, the surface water supplies have not replenished
to adequate levels. As a result, the City hats undertaken and
implemented a groundwater development program.
Currently, the City has developed a number of wells which range in
production from 80 gpm (134 acre feet) to 700 gpm (1100 acre feet) .
The City is in the process of developing additional wells. The wells _.
have been primarily developed in the Southwest section of the City
with a few low producers located in the in the Northern section of
the City.
As the City's water supplies become depleted or not suitable for
drinking, the conversion. of saltwater to usable water becomes more
attractive as an alternative for the augmentation of water supplies.
The technology for doing this currently exists. The problems which
have been identified and must be evaluated with implementing this
technology on a widespread basis are: energy requirements, costs, and
environmental constraints.
In an effort to explore all water resources available to the City an
evaluation of desalination will be conducted which will provide the
City with the information necessary to properly decide if
desalination is a viable option,.
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SCOPEOFWORK
The consultant(s) shall complete the studies-, and evaluations of
desalination, to determine the feasibility, energy requirements,
costs and environmental constraints. The consultant(s) shall address
the following:
1. Describe, identify and evaluate all alternative
desalination processes.
2. Describe, identify and evaluate the costs of
production.
3. Describe and identify the permit process, cost, and
schedules.
4. Describe and evaluate water quality standards.
5. Describe, identify and evaluate the methods of
delivery, pipe sizing, 'line pressures, plant size and
location.
6. Describe, identify and evaluate methods of financing.
7. Describe, identify and evaluate costs associated with
decommissioning a plant.
8. Evaluate desalination in comparison to other potential
City water supplies.
9. Preparation of a report which identifies the best managerial
approach to utilization of desalinization as an alternative water
supply.
10. Assist City staff with presentations to the City Council
during the preparation of the preliminary and final
reports. Attendance at more than two meetings may be
considered as extra cost to the consultant.
SPECIAL REQUIREMENTS
1. Consultant selected will be required to enter into the City's
standard contract form. The city will also require proof of
Workers Compensation Insurance and Comprehensive General
Liability as a minimum of and Proof of Errors and Omissions
insurance in a minimum amounts of $500, 000/$1, 000,'000.
2. Firms or individuals submitting a proposal and any associated
consultant or subcontractor must be legally qualified in the
State of California to practice the work required in this RFP and
must hold all licenses and/or registrations required by law. The
selected firm will have to obtain a City of San Luis Obispo
business license.
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CONTENT OF PROPOSAL
The proposal from the consultant should include the following:
1. Legal name, address and telephone number of firm �-
submitting proposal.
2. Name, address, and telephone number of the person to whom_
correspondence should be directed.
3. Year the firm was established as it is currently operated.
4. Is the firm an individual, partnership, corporation, joint
venture, etc.
5. The maximum fee to do the work as outlined under the scope of
work.
6. A breakdown of the estimate for performing the work to
include the costs of hourly personnel charges, equipment,
materials, and travel.
7. Comments from the consultant regarding his approach to the
project and any recommended modifications to the scope of
work that consultant feels would be desirable.
8. The Consultant will submit a proposed schedule.
9. Complete list and description of previous projects of a
similar nature in which the firm has been involved,
including the status of these projects and address of
contact persons employed by the project owner.
SELECTION CRITERIA
The initial selection of a consultant(s) will be based on the
following criteria:
1. It is the City of San Luis Obispo's desire to place the
responsibility for the success of the overall project with one
consultant, because of the need for continuity in coordination of
the various phases of the project. Continuation of consultant.(s)
services beyond the preliminary study phases is solely at the
City's discretion.
2. Evaluation will be based not only upon the firms capabilities,
but alsothe abilities and accomplishments of individuals to be
assigned to the project. Proven experience with desalination
evaluation is required expertise of the firm.
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SELECTION PROCESS
C7The proposals submitted will be reviewed by a selection committee
consisting of City staff members. After evaluating the proposals the
City will select a minimum of three (3) candidates for an oral
interview. The committee will submit a recommendation to the City
Council for final determination.
Each consultant's proposal will be reviewed on the following
criteria:
1. Professional excellence and technical approach.
2. Demonstrated competence on similar projects, (Selected firm will
have been thoroughly involved in at least two successful
desalination projects that are completed, including control of
costs, quality of work, completion in timely manner
3. Education and experience of key personnel. .Resumes should be
furnished for the proposed team members, team leader and
alternates designated.
4. Financial capability, estimated fee schedule and method of
compensation.
5. Candidate's capacity to perform the work- in a timely fashion. A
proposed work plan, organization chart, and man-weeks estimate
for each item in the plan should be included.
6. Candidate's familiarity with the type of problems applicable to
the project.
FINAL REPORT
1. Within thirty (30) days of project completion the consultant
shall furnish the City with a Final Report.
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