SR-6-E (113)
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CM:CP:BJ: srugtpd1.word.genserv Santa Monica, California .....h.
council Meeting: March 24, 1992
TO: Mayor and city Council
FROM: city staff
SUBJECT: Recommendation to Authorize city Manager to Negotiate
and Execute Contracts with Lindmark Engineering, Inc. and HazPak
Environmental, Inc. to Provide Underground Tank Removal and
Remediation Services
Introduction
This report recommends that City Council authorize the City
Manager to negotiate and execute contracts with Lindmark
Engineering, Inc. and HazPak Environmental, Inc. to provide
underground tank removal and remediation services. This work is
currently underway based upon emergency authorization by the city
Manager. This report requests Council confirmation of this
emergency work.
Background
The city currently owns and operates twelve underground tank
facilities. Presently, staff maintains the Underground storage
Tank Management Program to ensure the environmental integrity of
city-owned underground tank facilities and minimize liability for
environmental impairment due to potential subsurface
contamination. Th1S report discusses the unexpected failure of
the Police Department's tank system due to corrosion and the
steps undertaken by staff to mitigate the impact of the release.
Discussion
The Santa Monica Police Department maintains a standby electrical
generator, located on the northwest side of city Hall, to provide
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emergency power in the event of a loss of electricity to the
police communications facility. The diesel generator is fueled
from a 550 gallon underground storage tank adjacent to the
generator. Recently, the weekly monitoring tests performed by
staff revealed that the tank had released its contents in the
subsurface. Subsequent investigations conducted confirmed the
release and emphasized the need for timely cleanup due to the
rapid spread of the contamination plume and its proximity to
groundwater. Since initial evidence of the failure, staff has
conducted the site assessment, located and mobilized contractors
and equipment and finalized plans for excavation and removal of
the contamination.
Staff determined that the most appropriate cleanup method in this
case is excavation of approxlmately 450 cubic yards of
contaminated soil to mitigate any threat of contamination to
shallow groundwater resources. Specific logistical constraints
at the site, such as sloping topography and proximity to the
freeway, dictate that the excavatlon be conducted in a series of
large drill-hole excavations. It is anticipated that the
excavated soil will be recycled into asphalt products.
Following the removal of the old tank and excavation of the
contaminated soil, a new tank system will be installed to provide
fuel to the emergency generator. In the interim, a temporary
fueling system is being maintained at the site. Due to the
urgent nature of the cleanup, this request does not include the
cost of the new tank system. Staff anticipates returning to
Council within one month with a proposal for the installation of
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a new tank system, which is anticipated to cost between $35,000
to $40,000.
The scope of services provided by Lindmark Engineering, Inc.
includes the removal of the old tank system and excavation of the
contaminated soil. Haz Pak Environmental, Inc. will provide
transportation and recycling services for the contaminated soil.
Lindmark Engineering Inc. and Haz Pak Environmental, Inc. have
provided consistently high quality and responsive environmental
services to the City at costs competitive with or below industry
standards. staff believes that the consistent performance of
these contractors in conjunction with the urgent need for
remedial activities at the site combine to recommend this course
of action as the most prudent cleanup alternative.
Financial/Budget Impact
Funds in the amount of $158,410 for the proposed contracts are
available in CIP account 01-710-401-20092-8900-99020.
Recommendation
staff requests that city Council authorize the city Manager to
negotiate and execute contracts with Lindmark Engineering, Inc.
in the amount of $83,190 and HazPak Environmental, Inc. in the
amount of $75,220 to provide underground tank removal and
remediation services.
Prepared by: Craig Perkins, Environmental Services Manager
Brian Johnson, Environmental Coordinator
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