Environmental statement - Flyndre and Cawdor - Maersk Oil

Hazardous and
non‐hazardous
drainage
(excluding
machinery space
drainage)
Well workover,
intervention and
service fluid
discharges
Maintenance and
cleaning
(Consequential Modifications) (Offshore
Environmental Protection) Order 2010)
Convention on the Protection of the Marine
Environment of the North East Atlantic 1992
(OSPAR Convention)
OSPAR Recommendation 2001/1 For the
Management of Produced Water on Offshore
Installations (as amended by
Recommendation 2006/4)
The Offshore Petroleum Activities (Oil
Pollution Prevention and Control) Regulations
2005 (as amended 2011)
(as amended by the Energy Act 2008
(Consequential Modifications) (Offshore
Environmental Protection) Order 2010)
The Offshore Petroleum Activities (Oil
Pollution Prevention and Control) Regulations
2005 (as amended 2011) (as amended by the
Energy Act 2008 (Consequential
Modifications) (Offshore Environmental
Protection) Order 2010)
Offshore Chemicals Regulations 2002 (as
amended 2011) (as amended by the Energy
Act 2008 (Consequential Modifications)
(Offshore Environmental Protection) Order
2010)
The Offshore Petroleum Activities (Oil
Pollution Prevention and Control) Regulations
2005 (as amended 2011) (as amended by the
Flyndre and Cawdor Environmental Statement
Appendix A - Register of Environmental Legislation
A maximum oil‐in‐water concentration of 100mg/l with no more than 4% of samples in any month to exceed this;
Each installation has a specific discharge limit expressed as cubic meters per day.
In addition, each installation will have permit for re‐injection of produced water. Permits now extend to pipelines, under the 2011
amendments to the OPPC regulations.
Monthly reporting of produced water discharges is via EEMS. Bi‐annual sampling and analysis is required for total aliphatics, total
aromatics and total hydrocarbons (BTEX, NPDs, PAHs, organic acids, phenols and heavy metals). Other specific monitoring requirements
are attached to each permit.
Regulators: DECC
OSPAR Recommendation 2001/1 (as amended) requires that no individual offshore installation exceeds a performance standard for
dispersed oil of 30 mg/l for produced water discharged into the sea. It also required a 15% reduction in the discharge of oil in produced
water from 2006 measured against a 2000 baseline; controlled by the issue of permits to each installation. This is implemented under
OPPC.
Regulator: DECC
Requires a permit for hazardous drainage and non‐hazardous drainage discharges. Specific monitoring and reporting requirements are
required on each schedule permit. Reporting is via EEMS.
Permits now extend to pipelines under the 2011 amendments and to CCS activities under the Energy Act 2008 (Consequential
Modifications) (Offshore Environmental Protection) Order 2010.
Regulator: DECC
The OPPC requires a permit for well workover, intervention and service fluid discharges. Under these regulations a permit is not
required for the discharge of OBM/OPF and SBMs as these are permitted under the Offshore Chemical Regulations 2002 (as amended).
However any material being discharged or reinjected that has been contaminated by hydrocarbons from the reservoir will require a
permit. Specific monitoring and reporting requirements are included on each schedule permit and reporting is via EEMS.
Note: Under the Energy Act 2008 (Consequential Modifications) (Offshore Environmental Protection) Order 2010, permits now extend
to carbon sequestration activities.
Regulator: DECC
The OPPC requires a permit for maintenance and cleaning discharges, however it may be possible to include it in an existing permit.
A ‐ 18 D/4114/2011