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environmental statement - Rotherham's Online Application for ...

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7.13 The assessment of effects is based on determining firstly the value of the<br />

receiving site/feature/species and secondly the magnitude of the potential<br />

impact on the site/feature/species, in order to provide an overall impact<br />

score and there<strong>for</strong>e the predicted impact significance. The value of each<br />

site/feature/species of nature conservation interest is assessed using<br />

biodiversity evaluation methods detailed in the „Handbook of Biodiversity<br />

Methods‟ (RPS Group plc and Scottish Natural Heritage, 2005) and also<br />

incorporating advice within the „Ratcliffe Criteria‟ (1977) and „Guidelines <strong>for</strong><br />

Ecological Impact Assessment‟ (Institute of Ecology and Environmental<br />

Management, 2006).<br />

7.14 Firstly, each assessed site/feature/species is assigned a nature<br />

conservation value of the following:<br />

Very High (International);<br />

High (National);<br />

Medium (Regional/County);<br />

Low (Local); or<br />

Parish (Negligible).<br />

7.15 Secondly, the magnitude of potential impacts is described <strong>for</strong> each<br />

site/feature/species as follows:<br />

Major Negative;<br />

Intermediate Negative;<br />

Minor Negative;<br />

Neutral; or<br />

Positive.<br />

7.16 Based on the value of the site/feature/species and the predicted<br />

magnitude of the potential impact, the significance can be determined<br />

using the table below:<br />

Nature<br />

Magnitude of Potential Impact<br />

Conservation<br />

Value<br />

Major<br />

negative<br />

Intermediate<br />

negative<br />

Minor<br />

negative<br />

Neutral Positive<br />

Very high Very large Large Slight Neutral Large<br />

adverse adverse adverse<br />

beneficial<br />

High Very large Large Slight Neutral Large<br />

adverse adverse adverse<br />

beneficial<br />

Medium Moderate Moderate Slight Neutral Moderate<br />

adverse adverse adverse<br />

beneficial<br />

Low Slight Slight Slight Neutral Slight<br />

adverse adverse adverse<br />

beneficial<br />

Negligible Neutral Neutral Neutral Neutral Neutral<br />

173<br />

Penny Hill Wind Farm<br />

Environmental Statement

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