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EPWM:CP:BJ:srugtadl
California
Council Meeting: June 27, 1995
Santa Monica,
JUN 2 7 1995
To:
Mayor and city Council
From:
city Staff
Subject: Recommendation to Authorize the City Manager to
Negotiate and Execute a Contract with Arthur D.
Little for Remediation Activities at the
Transportation Department Facility
Introduction
This report recommends that Council authorize the City Manager to
negotiate and execute a contract with Arthur D. Little in the
amount of $782,000 to conduct remediation activities related to
releases from underground storage tanks and the hydraulic lift
system at the Transportation Maintenance facility
Background
The City currently owns and operates seven underground tank
facilities. staff maintains an Underground storage Tank
Management Program to ensure the environmental integrity of
City-owned underground tank facilities and minimize liability for
environmental impairment due to subsurface contamination.
As a result of this program, a subsurface release of diesel fuel
was detected underlying the fueling area at the Transportation
Maintenance Yard. The release was a result of leakage from
improperly installed piping. The leaky piping has been replaced
with state of the art double walled piping and an electronic leak
JUN 2 7 1995
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detection monitor. It is important to note that the city and the
contractor who installed the piping have approved and executed a
settlement requiring a $600,000 payment to the City for
remediation activities.
Additionally, during the investigation and assessment phase of
the remediation, it was discovered that the hydraulic lift system
had leaked fluid into the surrounding soils. Also detected
within the hydraulic fluid-impacted soils were chlorinated
solvents. These solvents, not known to be used at the
Transportation Maintenance Yard, appear to be migrating onto the
site from an unidentified off-site source.
Concentrations of the contaminants exceed state and local cleanup
thresholds and therefore require remediation. staff has
identified bioremediation as the most appropriate and effective
clean-up technology which will bring the site into compliance
with local and state standards. Bioremediation is a cleanup
technology that utilizes naturally occurring bacteria in the soil
to biodegrade contamination. It was determined to be most
appropriate cleanup technology due to contaminant type and
extent, site logistics and minimization of the City's long term
environmental liability.
Discussion
Proposals were solicited from eight consultants with expertise in
remediation projects with conditions similar to those found at
the site. Three firms submitted proposals. The proposers were
required to address remediation activities of the known
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contamination and to develop strategies to investigate and
identify surrounding sites which may be contributing to the
chlorinated solvent contamination which has been detected. In
the event other sites are found to be the source of the solvent
contamination, steps will be taken to ensure their participation
in the cleanup.
An interdepartmental committee was convened to review proposals.
The committee was comprised of representatives from
Environmental and Public Works Management, the City Attorney's
Office and the Transportation Department. The committee reviewed
each firm's remediation approach, experience, permitting
requirements, professionalism, references and cost. Following an
analysis of all proposals it was the recommendation of the
committee that Arthur D. Little be awarded the contract to
conduct the remediation at the Transportation Maintenance Yard.
BUdget/Fiscal Impact
Funds for this activity have been appropriated in Transportation
Capital Improvement Program account #41-750-657-20095-8900-99107,
which is financed by funds received from the Los Angeles County
Metropolitan Transportation Authority and/or the lawsuit
settlement funds.
Recommendation
staff recommends that Council authorize the city Manager to
negotiate and execute a contract with Arthur D. Little in the
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amount of $782,000 to conduct remediation activities at the
Transportation Maintenance facility.
prepared by: Craig Perkins, Director, Environmental and Public
Works Management
Brian Johnson, Environmental Coordinator
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