Civil Engineering Reference
In-Depth Information
The environmental impact of a fi re may be long
term and, in the case of effl uent contaminating ground
water, may persist for decades. As a result, the
legal consequences and clean-up operation can be
costly. Rivers, sewers, culverts, drains, surface water
soakaways, porous or unmade ground water distribu-
tion systems and service ducts all present routes for
pollutants to quickly enter the surrounding environment
(including surface water and ground water). Thus, the
effects of a discharge may not be evident on site, but
may become apparent some distance away. Any incident
response plan should take into account the vulnerabil-
ity of ground water both beneath and down-gradient of
the site.
In the majority of cases it will be possible to
reduce the risk of a fi re having a serious impact upon
the environment by ensuring that appropriate pollution
prevention measures are in place.
An example of an incident response plan in shown
as Appendix 13.2.
The plan should be drawn up by people with the
relevant competencies and may in many cases be
developed in consultation with external agencies or
specialists in the fi eld. The plan should include:
➤
Company name and full postal address of the site
➤
A brief description of the main business activities on
site (specifying those with a high potential for envir-
onmental harm)
➤
The date the plan was completed and the date it is
due to be reviewed
➤
The signature of the plan by a senior company
manager
➤
A list of recipients of the completed plan
➤
A contact list including contact details for:
➤
Emergency services
➤
Relevant environmental regulators
➤
Local water supplier and sewer provider
13.3.1
Incident response plan (IRP)
➤
Health and Safety Executive (HSE)
➤
Specialist clean-up contractors
The Environment Agency argues that the key to reducing
the environmental risk from a fi re (or other incident) is to
have a contingency or pollution incident response plan
in place. The plan need not be expensive to prepare, but
could minimise the consequences of an incident.
➤
Site keyholders
➤
A site drainage plan showing:
➤
Foul drainage surface water including the direc-
tion of fl ow and any drain covers
➤
Discharge points/soakaways for surface water
and trade effl uent
➤
The sewage treatment works to which sewage
and trade effl uent discharges
Shut-off
Valve
➤
Any watercourse, spring, borehole are well
located within or near the site
SWO
T/E
Plant
➤
General layout of buildings including:
Chemical
Store
➤
Site access routes for emergency services
➤
Any on-site treatment facilities for trade effl uent
or domestic sewage
➤
Areas or facilities used for storage of raw mater-
ials, products and wastes
Administration
Block
➤
Any bunded areas together with details of prod-
ucts stored and estimated
Warehouse
➤
Retention capacity
➤
Location of hydrants, 'fi reboxes' and spill kits
Oil separator
➤
Inspection points for the detection of pollution
Process
Area
SWO
➤
Oil separators
Car Park
➤
Retention or balancing tanks
➤
Firewater retention ponds.
13.3.2 Emergency procedures
Foul Sewer (Red)
Suggested
booming
point
Detailed emergency procedures should be produced
which must include details of staff responsibilities and
the procedures for dealing with events such as fi res, spill-
ages and leaking containers, etc. The level of response
will obviously depend on health and safety issues, staff
training, the level of personal protective equipment (PPE)
Surface Water Sewer (Blue)
SWO
Surface Water Outfall
Figure 13.4
Incident response plan should include site
drainage plan
