Annex 1: Activity Matrix
The activity matrix below describes offshore exploration, development and production activities and their potential effects. It also provides an indication of the policy or regulation applicable to the activity. Note that this activity matrix is intended as a guide only and is not exhaustive.
| Category/Operation | Activity | Potential Adverse Effects | Policy/Regulated |
|---|---|---|---|
Seismic Operations |
Temporary navigation restriction Physical impact on marine life, wildlife and marine mammals Temporary displacement of marine life, wildlife and marine mammals, or impact on communication and behaviours |
MTA Voluntary agreement MMPA / WA |
|
Platform Installation (Temporary) |
Temporary deployment of Anchors /Jack-up Rig | Physical disturbance on seabed Introduction of exotic invasive marine species Displacement of marine life, wildlife and marine mammals |
IHS for ballast water |
| Temporary Drill Rig | Introduction of exotic organisms via hull fouling/ballast water | IHS for ballast water; BA Voluntary codes for hull fouling |
|
Platform Installation (Permanent) |
Fixed Permanent Installation eg Jacket, CGS |
Physical disturbance of seabed Acoustic disturbance of marine life, wildlife and marine mammals Displacement of marine life, wildlife and marine mammals |
MED; Maritime NZ; MTA; SCPPA; MARPOL |
| Floating Permanent Installation eg FPSO, FSO, TLP etc | Introduction of exotic organisms via hull fouling / ballast water | MED; Maritime NZ; MTA; SCPPA; MARPOL IHS for ballast water Voluntary codes for hull fouling |
|
Drilling |
Physical Impact | Underwater noise Displacement of marine life, wildlife and marine mammals Local physical damage |
MMPA |
| Discharge of Drilling Cuttings | Accumulation of contaminated material Smothering of Benthos Physical obstruction Turbidity |
Maritime NZ | |
| Discharge of drilling fluids | Toxicity Turbidity |
MTA | |
Discharge to water (Operational) |
Produced water | Toxicity Floating oil |
MTA |
| Cooling Water | Thermal Toxicity |
||
| Organic waste | Pathogens Turbidity |
||
Discharge to water (Accidental) |
Oil Spills | Marine life, wild life and marine mammals Physical/shoreline/amenity Economic Toxicity |
MTA; RMA |
| Chemical Spills | Marine life, wild life and marine mammals Toxicity |
MTA | |
Discharge to Air |
Flaring | Climate change Possible attractant to sea birds |
MFE CM(P)R; WA |
| GHG Emission (non flaring) | Climate Change | MFE | |
| Plant & Machinery emissions | None | ||
| Tank Venting | Climate Change | MFE | |
Presence of Structure |
Exclusive occupation of platform footprint | Access restrictions | None |
| Exclusion zones | CSA; MTA; TSEEZA | ||
| Restricted Areas/Protection Zones | SCPPA; MTA | ||
| Security | Police; Military | ||
Operation and Maintenance |
Noise Light Handling of hazardous materials |
MMPA; WA; MTA; HSNO; HASIE | |
Waste Management |
Food waste |
MTA | |
| Garbage | |||
| Commercial Waste | |||
Ancillary Operations |
Helicopters | Civil Aviation | |
| Support Vessels | Introduction of exotic organisms via hull fouling/ballast water | MARPOL; IMO; OPRC; MTA; BA IHS for ballast water Voluntary codes for hull fouling |
|
At Sea Disposal |
Ancillary structures and Platform Abandonment | MTA |
