Environmental Authority P-EA-100232409 · MCU22/0203

                                                                                                             Permit

                                                            Environmental authority P-EA-100232409



Spot-checking refers to a non-continuous monitoring approach performed at a fixed distance and direction from
a mobile impact source (in the context of this guidance, dredging vessels) or at other key points of interest. Spot-
checking may be routine or event-based, and may also include monitoring at fixed monitoring sites, such as
reference sites or control sites and test sites or sentinel sites, although the same sites need not necessarily
be monitored on every sampling event.

Test site is a concern site that functions as a test point for compliance, is a monitoring site situated within the
area where a sensitive receptor occurs and where environmental monitoring-related assessment criteria (e.g.
trigger values) apply.

Tidal land means land that is submerged at any time by tidal water.

Trigger values are physicochemical, parameter-specific measurement values used to indicate a condition where
an environmental value or sensitive receptor may be at low, moderate or high risk, or some other risk related
indicator.

Waters includes river, stream, lake, lagoon, pond, swamp, wetland, unconfined surface water, unconfined water,
natural or artificial watercourse, bed and bank of any waters, dams, non-tidal or tidal waters (including the sea),
stormwater channel, stormwater drain, roadside gutter, stormwater run-off, and groundwater and any part thereof.

Zone of Influence of a sediment plume is, in its broadest application, defined by the dredge footprint and the
area beyond the dredge footprint where at least some level of sediment plume-associated impacts are
expected to occur. The overall zone of influence may be broken down into more risk-relevant sub-categories,
such as the Zone of Unavoidable Loss (the dredge footprint and immediately adjacent areas), the Zone of
Moderate Impact, or the Zone of Marginal Impact, with each zone being defined according to its purpose or role
in environmental management.




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