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Supporting documents - Renfrewshire Council

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Geology, Soils and Contaminated Land<br />

No sites designated for their geological interest would be affected by the proposals.<br />

No geological resources of particular significance have been identified which would<br />

be affected by the works and no significant effects are predicted.<br />

Peat is commonly found across the site ranging in depth from very shallow to more<br />

than 3m. A peat slip hazard assessment has been undertaken which indicates that<br />

hazards can be mitigated by implementation of mitigation measures in the detailed<br />

design and the risk of peat slide of the mitigated design would not be significant.<br />

No significant areas of contaminated land have been identified which could be<br />

affected by the works. An area of potentially contaminated land was identified by<br />

ERC some 100m south east of turbine MHT-114. This would be investigated prior to<br />

construction commencement and if contaminated the contractor would be required to<br />

avoid the area of contamination and ensure that all potential indirect effects were<br />

mitigated. Implementation of best management practices including good design of<br />

the works would ensure that any impacts to soils were minimised. Implementation of<br />

best management practices and the committed mitigation measures would ensure<br />

that any risk of subsidence due to the decomposition of buried peat would be avoided<br />

and the risk of peat slides minimised.<br />

The total carbon emission generated by construction of the proposals is 130,772<br />

tonnes of carbon dioxide per year (tCO2 yr -1 ). Taking into account the estimated<br />

carbon dioxide savings which would be generated by the windfarm then the overall<br />

payback time in terms of carbon dioxide emissions for the proposals is calculated to<br />

be 1.7 years.<br />

Water Quality and Drainage<br />

There would be no significant effects on hydrology,<br />

water quality and drainage provided all mitigation<br />

measures were successfully implemented. No known<br />

private water abstractions would be affected by the<br />

development and groundwater supplies would be<br />

protected by design of the works in accordance with<br />

best practice.<br />

The contractor would be required to develop and<br />

implement a Water Protection Plan as part of the site EMP to ensure proactive<br />

protection of watercourses, groundwater and potable water supplies including the two<br />

public water supply reservoirs. All design and protection measures (permanent and<br />

temporary) would be agreed with SEPA and Scottish Water in advance of<br />

construction. Flood risk would be appropriately mitigated and would not be<br />

significant.<br />

Best management practices would be implemented during construction and<br />

maintenance activities during operation to ensure there was no significant impact on<br />

water quality. There would be minor adverse effects during construction and the<br />

contractor would be required to monitor the effectiveness of all protection measures<br />

during all phases of construction. Accidental spills and leaks would be dealt with as<br />

part of the emergency response plan and all site staff would be trained on its<br />

implementation.<br />

IX

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