for piling Therefore it is not possible to eliminate piling noise from the project; the focus should therefore be on ‘Reduce – Control measures. – Inform’ 2 Reduce Reduce the noise Use of a temporary Diving Exclusion level either through Zone within 2km (2000m) of any piled limiting the noise location which will be patrolled by guard emission at source, boats during the pile driving operations; or ensuring should any dive vessels or divers come minimum within this exclusion piling will be effectively reduce temporarily suspended until they retreat the potential noise outside the Exclusion Zone. exposure 3 Control Control the noise Use of a technique; ‘Soft-Start Piling’ levels in a manner Underwater noise will be audible, although which allows early at a lower level, over a greater distance warning from lower outside the 2km exclusion area, therefore noise levels to to avoid unexpectedly startling anyone enable individuals diving during this period outside the to avoid sudden exclusion zone, the energy level of the pile loud noise levels driving will be gradually built up over a period of 20 minutes. 4 Inform Ensure that those i) Appointment of a Diving Liaison who may be Officer (DLO); exposed to the ii) Implementation of comprehensive residual hazard are with the diving Communications Plan suitably informed community including Diver – from the above Factsheet/Newsletter and measures being Construction Updates immediately implemented, are prior to and during construction. aware of the hazard General awareness of the Project, and the need to construction timescales, and specific notice observe the of when piling will be happening, will controls put in ensure the dive community can plan dives place appropriately and those who choose to dive out towards the Rampion site will be aware of the likelihood of underwater
for piling Therefore it is not possible to eliminate piling noise from the project; the focus should therefore be on ‘Reduce – Control – Inform’ measures. 2 Reduce Reduce the noise level either through limiting the noise emission at source, or ensuring minimum effectively reduce the potential noise exposure Use of a temporary Diving Exclusion Zone within 2km (2000m) of any piled location which will be patrolled by guard boats during the pile driving operations; should any dive vessels or divers come within this exclusion piling will be temporarily suspended until they retreat outside the Exclusion Zone. 3 Control Control the noise levels in a manner which allows early warning from lower noise levels to enable individuals to avoid sudden loud noise levels Use of a ‘Soft-Start Piling’ technique; Underwater noise will be audible, although at a lower level, over a greater distance outside the 2km exclusion area, therefore to avoid unexpectedly startling anyone diving during this period outside the exclusion zone, the energy level of the pile driving will be gradually built up over a period of 20 minutes. 4 Inform Ensure that those who may be exposed to the residual hazard are suitably informed from the above measures being implemented, are aware of the hazard and the need to observe the controls put in place i) Appointment of a Diving Liaison Officer (DLO); ii) Implementation of comprehensive Communications Plan with the diving community – including Diver Factsheet/Newsletter and Construction Updates immediately prior to and during construction. General awareness of the Project, construction timescales, and specific notice of when piling will be happening, will ensure the dive community can plan dives appropriately and those who choose to dive out towards the Rampion site will be aware of the likelihood of underwater
1310%20Outline%20Diver%20Mitigation%20Plan%20submitted%20to%20PINS.docx