HomeMy WebLinkAbout1996-10-22; Municipal Water District; 347; Capacitive Deionization Demonstration Project, .
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AB# 347
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DEPT. CMWD
RECOMMENDED
#BAD MUNICIPAL WATER DISTRICT -AGENDA BIL - Gk .n
TITLE: APPROVE AND AUTHORIZE
THE CAPACITIVE DEIONIZATION
DEMONSTRATION PROJECT WITH
LAWRENCE LIVERMORE NATIONAL
LABORATORY - CMWD PROJECT NO. 95-302
GTION:
CITY MGRW
Adopt Resolution No. 757 to approve and authorize the Capacitive Deionization
Demonstration Project with Lawrence Livermore National Laboratory, CMWD Project No. 95
302.
ITEM EXPLANATION:
Lawrence Livermore National Laboratory (LLNL) has recently completed the construction of a
2,000 gpd capacitive deionization (CDI) water treatment pildt plant. This CDI pilot plant is the
first scaled up unit to be constructed by LLNL, and is being installed on a 40-foot long trailer
complete with an electrical control and monitoring system. The construction and development of
this CDI pilot plant was funded through others.
The District has been in discussions with LLNL to temporarily use this CDI pilot plant in
Carlsbad to demonstrate its capability on local groundwater as opposed to laboratory
conditions. In these discussions, LLNL indicated that CMWD could use the CDI pilot plant for a
period of four weeks in the month of November or December, 1996, as a “Demonstration
Project”.
The Demonstration Project would involve locating the CDI pilot plant at the Encina Water
Pollution Control Facility. The main advantage of this location is it utilizes existing groundwater
wells to supply brackish groundwater to the CDI pilot plant and the existing secondary treatment
facility can be used to receive the treated water and brine discharge. Other advantages include
24-hour security inside a fenced enclosure, a paved parking area for the trailer, easy access for
operations staff and visitors, existing electrical power, and an adjacent laboratory to perform
needed water quality testing.
This Demonstration Project has several advantages for the City of Carlsbad as follows:
First, the District is currently pursuing alternative water resources as part of its master plan
update as approved for funding by the Board in June 1996. Through this master plan, we have
been using consultants to review all alternative water resources available to the City of
Carlsbad. The CDI water treatment system can be used to desalinate either brackish
groundwater or seawater and reclaimed water; and is, therefore, a viable alternative to treat
high TDS water for domestic and irrigation uses. The results of the Demonstration Project will
be incorporated into the alternative water resources report. Second, this Demonstration Project
complies with the City Council goals of investigating seawater desalination programs. Third,
through a successful demonstration, the District would be in a better position to acquire
Page 2 of Agenda Bill No. 397
additional interests and funding from other parties for development of a larger scale facility that
could be located in Carlsbad. This proposal has already generated interest from MWD, Orange
County MWD, and Alameda County Water District. Fourth, this is an excellent opportunity for
Carlsbad to work in partnership with a National Laboratory on desalination research and
technology.
The Water Commission has reviewed and recommended Board approval of this Demonstration
Project at its meeting held September 11, 1996. Their belief is that this approach is a step in
meeting the goal of obtaining a local water supply.
The budget estimate for this CDI demonstration project are as follows:
LLNL BUDGET:
1. Trucking Cost of 40-foot trailer to Carlsbad from Livermore
2. Per diem expense for LLNL
3. LLNL Labor Expense
4. Packing and Transportation Cost
5. Preparation of CDI unit for on-site operation
6. Analysis of data results
7. Documentation and Final Report
CAROLLO ENGINEERS BUDGET:
Develop testing protocol, perform monitoring and report of observations.
Assist in Monitoring and Manual Operation Activities
ENCINA WASTEWATER AUTHORITY BUDGET:
Perform all Laboratory Testing and provide security and coordination.
Their cost will be paid out of the annual operating budget allocated to
Carlsbad.
$ 2,000
$ 1,500
$25,000
!§ 500
$ 2,000
$ 5,000
E
$ 8,860
$5,000
CMWD BUDGET:
Install all onsite piping, pre treatment, post treatment and power; and
provide routine monitoring and manual operation activities. Cost to be paid
out of annual water operations budget. $11,140
Total Project Cost $66,000
Page 3 of Agenda Bill No. 6#7
FISCAL IMPACT:
Appropriations will be made from the following sources:
New appropriations:
San Diego County Water Authority, Financial Assistance Program 32,940
Olivenhain Municipal Water District 5,000
Carlsbad Municipal Water District’s Replacement Fund
Subtotal:
11,920
49,860
I
I TOTAL 66,000
As previously approved by the City Council, the San Diego County Water Authority (SDCWA),
through its Financial Assistance Program (FAP), has agreed to fund one-half the cost of the
demonstration project, not to exceed $32,940. Should the City build a CDI treatment plant in the
future, the FAP funds would need to be paid back to the SDCWA.
In addition, the Olivenhain Municipal Water District wishes to contribute funds to this
demonstration project to further their understanding of the technology for possible use in their
local groundwater supply.
The $49,860 will be appropriated in the Water Capital Replacement Fund. Reimbursements
from the SDCWA and the Olivenhain Municipal Water District will offset the project cost. Upon
completion of the project, the City’s contribution will total approximately $28,060.
ENVIRONMENTAL IMPACT:
The demonstration project is exempt from the environmental review process as per Article 19
Categorical Exemptions Class 6. The Regional Water Quality Control Board was contacted
regarding this project and no permit is required for discharge of the treated water.
EXHIBITS:
1. Location Map.
2. Resolution No. ?rY to approve and authorize the Capacitive Deionization
Demonstration Project with Lawrence Livermore National Laboratory, CMWD Project No.
95-302.
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RESOLUTION NO. 959
A RESOLUTION OF THE BOARD OF DIRECTORS OF THE
CARLSBAD MUNICIPAL WATER DISTRICT, CARLSBAD,
CALIFORNIA, FOR APPROVAL AND AUTHORIZATION OF THE
CAPACITIVE DEIONIZATION DEMONSTRATION PROJECT
WITH LAWRENCE LIVERMORE NATIONAL LABORATORY,
CMWD PROJECT NO. 96-101
WHEREAS, the Lawrence Livermore National Laboratory (LLNL) has constructed a
2,000 gpd pilot plant, and LLNL has indicated their concurrence to locate the pilot plant for a
period of up to four weeks in Carlsbad; and
WHEREAS, the Capacitive Deionization Pilot Plant can be located at the Encina Water
Pollution Control Facility for the purpose of demonstrating its treatment capability on local
groundwater through the use of existing wells; and
WHEREAS, the Board of Directors of the Carlsbad Municipal Water Distrjct of
Carlsbad, California has determined that the Capacitive Deionization Demonstration Project
with Lawrence Livermore National Laboratory would provide valuable information with regard
to the capability of the capacitive deionization process to be used in treating local brackish
groundwater and seawater, an alternative water supply, for Carlsbad; and
WHEREAS, the Capacitive Deionization Demonstration Project would be in concert
with the City Council Goal of investigating desalination technologies; and
WHEREAS, the budget for the Capacitive Deionization Demonstration Project has
been estimated at $66,000, and approximately $16,000 has already been appropriated in the
Water District’s 1996-97 operating budget; and
WHEREAS, the San Diego County Water Authority has agreed to reimburse the District
for one-half the cost of the demonstration project, up to $32,940, with the stipulation that the
funds would be repaid if a full scale treatment facility was developed in the future as a result of
this demonstration project; and
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WHEREAS, the Olivenhain Municipal Water District has pledged $5,000 toward the
cost of the project.
NOW, THEREFORE, BE IT RESOLVED, by the Board of Directors of the Carlsbad
Municipal Water District of Carlsbad, California as follows:
1. That the above recitations are true and correct.
2. That the funds in the amount of $ 49,860 for the Capacitive Deionization
Demonstration Project will be appropriated from the Water Capital Replacement Fund.
PASSED, APPROVED AND ADOPTED at a special meeting of the Cansbad Municipal
Water District held on the X5-d day of OCTOBER , 1996, by the following
vote to wit:
AYES: Board Members Lewis, Nygaard, Kulchin, Finnila, Hall
NOES: None
ABSENT: None
ATTEST:
(SEW
CMWD 96101