Page 63 - SUSTAINABILITY REPORT 2016

SEA ENVIRONMENT 63

GIGLIO ISLAND:

SITE REMEDIATION

One of Costa Cruises’ top priorities is to focused mainly on removal of sediment remediation operations are proceeding and other members of the Environmental
protect the environment of Giglio Island and fragments of cement from the sea so as to minimize any inconvenience to Observatory, also verify the validity of the
13 www.regione.toscana.it and to restore to the local community its bed near the coast, up to a depth of 40 the island’s inhabitants; in particular, work carried out by the working group (*) Following decisions made by site
/-/osservatorio-costa-concordia supervisors, phases 5 and 6 of the
natural terrestrial heritage and marine meters. One of the consequences of the special attention is being paid to keeping consisting of the Università La Sapienza restoration project were rescheduled
14 Tuscan Regional Environmental environment. As arranged, in 2016 wreck removal operation was that natural noise levels down at the worksite and to di Roma, CIBM (Centro Interuniversitario (last update June 2017).
Protection Agency environment restoration work continued and artifi cial materials were deposited guaranteeing the quality of the water. The di Biologia Marina ed Ecologia Applicata
on the site where the wreck of the on the sea bottom, altering its condition. results of the analysis conducted in 2016 di Livorno) and the DISTAV Department
Concordia was removed; these operations Recovery of this debris is vital for the and certifi ed by ARPAT confi rm that of the University of Genoa. Until 2015
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commenced in November 2014 under the purpose of restoration of environmental the water transparency here is as good the Observatory also supervised the work
direction of the Micoperi Consortium conditions which, over time, will lead as the best that can be found anywhere done by Oceanomare Delphis, which
and the supervision of the Environmental to the gradual return of the forms of in the sea of Tuscany. ARPAT, together was tasked with acoustic monitoring and
Observatory . marine life that were here originally. with ISPRA (National Institute for sightings of marine mammals and their
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During the reporting period, work was The Observatory has confi rmed that site Environmental Protection and Research) state of health in the area of operations.

GIGLIO ISLAND SEA BED: THE PHASES OF THE RESTORATION PROJECT

1 FIRST PHASE 2 SECOND PHASE 3 THIRD PHASE 4 FOURTH PHASE 5 FIFTH PHASE (*) 6 SIXTH PHASE (*)

Removal and disposal of mussel shells deposited Cutting and removal of the 11 anchor blocks used as Cutting into pieces and removal of the 6 subsea Disposal of the diff erent types of grout bags put in Removal and disposal of the sediment deposited Removal of the debris using diff erent methods
on the sea bed (an area of approximately 4000 m ) part of the retaining system. Oceanomare Delphis, platforms used during parbuckling and to provide a place to build the false sea bed on which the wreck on the sea bed during the salvage operation; use of depending on the depth, type and size of the debris.
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and released by the pontoons used in the salvage together with the Centro Interuniversitario di stable base for the upright vessel. Removal of grout came to rest after parbuckling, with removal by specifi c equipment (natural, non-invasive, underwater
operation. Removal was performed by means of a Biologia Marina ed Ecologia Applicata (CIBM) and bags and materials for additional stability of the means of various lifting methods and techniques suction system).
non-invasive underwater suction system, thereby the Università La Sapienza di Roma, carried out hull (fastened using Water Glass) from the surface designed to move the bags intact. This entailed
ensuring that the mussels were collected from the marine mammal monitoring to ensure that any whales of the 3 main platforms. designing and building a special grab bucket for safe
sea bed and transferred to the surface. and other species present in and around the area of removal.
operations were protected. These bodies had the right
to order the temporary suspension of work in the event
of detection of marine mammals within a radius of
1000 m of the site.