ENVIRONMENTAL STATEMENT BARDOLINO DEVELOPMENT

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Bardolino Development Environmental Statement 5.3 ASSESSMENT OF IMPACTS Having identified the activities/events that might give rise to environmental impact, the predicted effect of activities associated with the proposed Bardolino Development on the receiving environmental receptors has been assessed and is detailed in Table 5.2. The assessment of the potential effects on the environment has been made using information and data on the following issues: • The concentration of pollutants or the magnitude of disturbance associated with waste streams / disturbances, using the data presented in Section 3. • The manner in which the severity of an effect might vary depending on the location and timing of the activity, using the data presented in Section 4. Effects may vary in significance according to the sensitivity of the environmental features present and the time of year in which the activity is being carried out. • The nature, and where possible scale and duration, of the physical, chemical, biological and social / economic effects caused by the releases / disturbances once in the environment. This assessment has been made by reference to the accumulated research and survey work on the environmental effects of the offshore industry, making reference, where possible, to concentration levels or magnitudes that have known environmental effects. The results of the evaluation of the significance of the impacts are presented in Table 5.4, using the predefined significance criteria shown in Table 5.2. Impacts that fall into the categories described as: “none”, “negligible” and “minor” have been assessed to be nonsignificant. Table 5.3 provides justifications for the assessment of these non-significant impacts, which have been excluded from further investigation within the ES. Any impacts that were classified as being of “moderate” or greater significance are considered in more detail in Section 6. Table 5.3 also identifies the control and mitigation measures which would be in place to reduce and / or avoid each identified potential effect associated with the proposed Bardolino Development. In addition to specific mitigation measures detailed in Table 5.3 all activities would be covered by Shell’s CMS and the following systems: • HSE Management of Contractors • Contractual clauses on pollution control • Drilling Rig Safety Case • Installation Safety Case • Contractor HSE Interface Documents Page 5-4 April 2008
Bardolino Development Environmental Statement Table 5.2: Criteria used to assess the significance of potential impacts Colour Code Level of Environmental Impact Severe Major Moderate Minor Negligible Definition • Change in ecosystem leading to long term (>10 years) damage and poor potential for recovery to a normal state. • Likely effect on human health. • Long term loss or change to users or public finance. • Change in ecosystem or activity over a wide area leading to medium term (>2 years) damage but with a likelihood of recovery within 10 years. • Possible effect on human health. • Financial loss to users or public. • Change in ecosystem or activity in a localised area for a short time (
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ENVIRONMENTAL STATEMENT BARDOLINO D
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13 th March 2008 Dear Sir or Madam,
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To: Paul Wood Shell U.K Limited, Se
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What risks to marine mammals do pil
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Noise propagation modelling. Noise
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If, for any reason, piling operatio
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APPPENDIX 1 MARINE MAMMAL RECORDING
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ENVIRONMENTAL STATEMENT BARDOLINO DEVELOPMENT

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