Former gas works
site.
REC Ltd were engaged by a national supermarket
retailer to assist them in the acquisition
and development of a former gas works facility
in the town of Fleetwood. A number of site
investigations were undertaken which identified
a legacy of typical gasworks contamination
associated with the gas holders, retort houses
and underground fuel tanks. Despite the
comprehensive
site
investigations it was considered necessary
prior to commencement of the enabling works
to 'map' the different classes of waste which
would need disposing at either a non-hazardous
or hazardous landfill facility. The undertaking
of this exercise provided reduced cost benefits
as a large proportion of the contaminated
material was deemed to be non-hazardous and
therefore did not require removal to a more
costly facility.
An REC Ltd Engineer was on site each day
during the enabling works to monitor the
work progress and to ensure that materials
were
sampled and tested to ensure that they were
either removed offsite or retained onsite
in permitted
areas. Upon completion of the enabling works,
a Validation Report was developed which was
accepted by the Environment Agenct and Local
Authority.
 Site
Investigations (Geotechnical and Environmental).
Quantitative Risk Assessment (pre and post
CLEA SGVs).
Environmental monitoring.
Invasive plant species survey.
Liaison with the regulators.
Development of Remedial Method Statements.
Development of tender for remediation contact.
Landfill tax exemption application.
Air quality monitoring during earthworks.
Characteristics of hazardous/non hazardous
materials.
Validation of remediation levels.
Development of validation report.
REC provided a controlled water risk assessment
which showed groundwater treatment was not
necessary on the site. Instead a pragmatic
solution was approved which involved removing
soil contamination, encountered in former
gas holders, tanks, and retort house area
etc.
This saved the client approximately £800,000.
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