By Scott Kirby, C.E.T.
Hanson Pipe & Products Canada Inc.
Connection of standard manhole components
to 450 mm diameter storm sewer.
Under today’s environmental
legislation and regulations, it
is prudent for property owners
to practise due diligence
when storing various fuels for sale to
the public. Landowners are responsible
for any environmental mishaps that
may occur on their property.
Landowners with drainage courses traversing
their properties must exercise
even greater caution. Taylor Fuels
retained the services of an environmental
consultant to inspect their
facility on Franklin Boulevard, in
Cambridge, Ontario. The Taylor Fuels
site is a retail gas station and commercial
cardlock facility (24-hour self-serve
purchase of gas or clear and
coloured diesel, using an authorized
credit card).
An oil/sediment separator was proposed
and accepted for controlling
spills and containing sediment in the
runoff in the spring of 2002. It was
determined that a Stormceptor® unit
could be added to the existing storm
sewer in line, within 6 metres of the
outfall to the adjacent property. After
inspection of the installed reinforced
concrete pipe by Tony Cherri, of G.
Melo Excavating (installation contractor),
and staff of Hanson Pipe &
Products, it was evident that the pipe
was in good condition and could
be removed, cleaned and reinstalled.
Four pieces of 450 mm
diameter concrete pipe would
have to be excavated to accommodate
the oil sediment separator.
An 1800 mm diameter model
STC 750 was recommended for
the site. Using standard precast
concrete components, the unit
was comprised of a 0.305 m
high base slab, a 0.914 m high
riser, a 1.829 m high riser section
mounted with a fibreglass
Stormceptor insert, and a 0.305
m high flat cap. Kor “N” Seal
rubber compound boots were
used to connect the reused pipe and
existing sewer to the riser section
mounted with a fibreglass insert to
provide leak-proof joints.
Work began at 8:00 a.m. and was
completed by 3:00 p.m. the same day.
A CAT 330 excavator, rubber tire
backhoe, one truck and a crew of four
were required to complete the installation.
To be proactive, Taylor Fuels took
the initiative to provide an industrywide
accepted oil/sediment removal
system as part of their risk management
program. Reuse of reinforced
concrete pipe demonstrates the versatility
and durability of concrete pipe
and its high value as an environmentally
sound material.
For more information contact e-mail:
skirby@cenpipe.com.
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