4.1.1 Sumps and savealls are to be provided at potential spillage points, and
drainage systems are to have adequate capacity and be designed for ease of
cleaning.
4.1.2 Production manifolds are to be located and installed so that in the event
of leakage in an enclosed area, a leakage detection and shut-down system will be
activated. In open areas, arrangements are to be such that oil spillage will be
contained, and that suitable drainage and recovery provisions are made.
4.1.3 Maintenance of production and process systems and equipment is to be
governed by a permit-to-work system with rigid control on spillage prevention when
opening up or testing is being carried out.
4.1.4 The arrangements for the onboard storage, and the disposal, of bilge and
effluent from the production and process plant areas and spaces are to be submitted
for consideration.
4.1.5 Oily water treatment systems are to have sufficient capacity for
treatment of bilge and effluent water from the production and process plant areas
and spaces.
4.1.6 When oil is added to the drilling mud, provision is to be made to limit
the spread of oil on the unit, and to prevent the discharge of oil and oily residue
into the sea by the provision of de-oilers and suitably alarmed oil monitoring
devices.
4.1.7 Drilling bell nipples, flow lines, ditches, shale shakers, mud rooms and
mud tanks and pumps are to be designed for maximum volume throughput without
spillage. Equipment requiring maintenance is to have adequate spillage catchment
arrangements.
4.1.8 Pollution prevention arrangements are to be such that the unit can
comply with the requirements of the relevant National Administrations in the country
of registration and in the areas of operation as applicable.