Environmental Engineering Reference
In-Depth Information
Vessels Selected for Compliance Monitoring
Out of six elements available in the DSS model for selecting a vessel for compliance
monitoring there are only two triggering elements feasible to be addressed for this
study. These are: (1) The BWDA model disagrees with the declared ballast water
operation; and (2) The ballast water intended for discharge was identifi ed as posing
an extreme risk.
1. The assessment included all vessels that have submitted BWRF in 2005;
i.e., 1,379 vessels. As a consequence of suspecting that vessels wrongly declared
the ballast water discharge operations, 49 vessels were selected for compliance
monitoring.
2. The ballast water of 13 vessels was identifi ed as posing an extreme risk, and
these were also selected for compliance monitoring.
These results also need to be seen from the perspective of the different levels of
monitoring (i.e., PSC inspection) triggered by each DSS model result. The suspected
false-declaration based on the disagreement of the BWDA model triggers in the fi rst
step the “general” inspection; meanwhile the extreme risk ballast water triggers the
“detailed” inspection. This is important information because according to the BWM
Convention if a vessel is selected for a detailed inspection, it should not be allowed
to discharge any ballast water until it is ascertained that this can be done without a
risk of harm to the environment, human health, property or resources.
Vessels Allowed to Discharge Unmanaged Ballast Water
As a consequence of BWE being currently the only available BWM option, but
which is not applicable to vessels sailing to Port of Koper from the ports located in
the northern Adriatic, 385 vessels out of 448 were not able to conduct BWM and
they were allowed to discharge unmanaged ballast water in the Port of Koper.
However, this should not be considered as the result of DSS since these were
excluded from DSS BWM options.
All the remaining 63 vessels were able to conduct BWM properly. Therefore,
none of the vessels considered discharged unmanaged ballast water.
Vessels May Be Turned Away Because Not All Measures to Conduct Ballast
Water Management were Taken Properly
None of the vessels studied was “turned away” since all vessels conducted
BWM properly.
The study also showed that the designation of an adequate BWEA would offer
the possibility for most of the vessels to comply with BWM requirements without
the need to deviate from their intended routes or to slow-down. Consequently, few
delays are expected.
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