Environmental Engineering Reference
In-Depth Information
When a mandatory reporting is introduced it is expected that turning a vessel
away because of the lack of submitted BWRF would not occur, same as this is not
the case with other documents required for port entry. However, turning away of a
vessel still has to be considered as a last resource in case a vessel would not provide
BWRF or not report as required.
Vessels Exempted from Ballast Water Management Requirements
According to the RA results none of the vessels was exempted from BWM
requirements. Considering that most of the ballast water discharged in the Port of
Koper originates from the same biogeographic region, exemptions of vessels could
be found suitable. This option remains potentially as a component of the DSS
implementation in the future, if reliable data on ballast water source ports required
for RA becomes available.
Vessels Requested to Conduct Ballast Water Management
May or May Not Be Able Do It
According to the RA results all vessels were required to conduct BWM. The BWE
sequential and pump-through methods were taken into account as feasible BWM
options. However, due to the inapplicability of available BWM methods in the
northern Adriatic 385 vessels out of 448 were not able to conduct BWM. For these,
other management measures were proposed. Furthermore, BWM DSS provides
requirements also for vessels in this area when the BWM Convention enters into force.
The remaining 63 vessels were assessed as able to conduct BWE using one of the
available options. In total 17 vessels would not be able to complete BWE on their
intended route and at their intended speed; therefore, BWE was required as an
additional measure. For 12 of these vessels a deviation and/or slowing-down was
assessed as an option, and the other 5 vessels would only need to slow-down. Since
additional measures were required based on RA in a case by case approach, none of
the vessels concerned was unduly delayed.
Navigational safety aspects were also considered. It was recognised that for those
vessels which have to slow-down, some of these would be sailing during BWE at
less than half of their usual speed on their intended routes, therefore additional
attention of vessels on the same routes would be required.
Vessels Requested to Conduct Ballast Water Management
May or May Not Do It Properly
Whether or not a vessel conducted BWM properly could not have been assessed.
Therefore, for the results of this study it was assumed that all vessels that were
assessed as able to conduct BWM have done it properly.
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