An Bord Pleanála Inspector's Report
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An Bord Pleanála Ref.: 12JA0034 An Bord Pleanála Inspector’s Report Development: Proposal to increase water abstraction from Lough Gill & upgrade water treatment plant at Moneyduff, County Leitrim as part of North Leitrim Regional Water Supply Scheme, Phase II. Location: Townlands of Greenaun North & Moneyduff in County Leitrim and townlands of Abbeyquarter North, Rathquarter, Cleaveragh Demesne & Aghamore Far in County Sligo and at Cormorant Rock and Pearl Rock in Lough Gill. Local Authority: Leitrim County Council Type of Case: Application for approval under Section 175 of the Planning & Development Act 2000 (as amended) Section 177AE of the Planning and Development Amendment Act 2010. Observers/ Damien J Brennan, Aughamore Near, Sligo. Prescribed Bodies: An Taisce Department of Arts, Heritage & the Gaeltacht Sligo Anglers Association Sligo County Council Date of inspection : 15 th and 16 th June 2013 Inspector: Bríd Maxwell 12JA0034 An Bord Pleanála Page 1 of 33 1.0 INTRODUCTION 1.1 In March 2013 Leitrim County Council sought the approval of the Board under Section 175 of the Planning and Development Act 2000 (as amended) and Section 177AE of the Planning and Development Amendment Act 2010 for the proposal to increase water abstraction from Lough Gill and upgrade the Moneyduff Water Treatment Plant in the townlands of Greenaun North and Moneyduff in County Leitrim and in the townlands of Abbeyquarter North, Rathquarter, Cleveragh Demesne and Aghamore Far in County Sligo and at Cormorant Rock and Pearl Rock in Lough Gill. 1.2 An Environmental Impact Statement (EIS) and Natura Impact Statement (NIS) have been prepared by Jennings O Donovan and Partners Limited Consulting Engineers on behalf of Leitrim County Council in respect of the proposed development. 1.3 The prescribed bodies which were notified in accordance with Section 175(4)(b) and Section 177 AE(4)(b) of the Planning and Development Act 2000 (as amended) were listed to be as follows: • An Comhairle Ealaíonn • Bord Failte Eireann • An Taisce • Sligo County Council • Sligo Borough Council • Regional Fisheries Board • Inland Fisheries Ireland • Environmental Protection Agency • Heritage Council • Department of Arts, Heritage and the Gaeltacht. 1.4 Additional Information was requested by the Board on 22 nd May 2013 in respect of the following items: (i) North Leitrim Regional Water Supply Scheme Garavogue River – Hydraulic Study (ii) Clarification on extent to which climate change considerations were factored into the assessment of impacts (iii) Details of current discharge quantity and quality from Moneyduff Water Treatment Plant (iv) Further information including relevant baseline studies to address impact below the upper weir on the Garavogue River (v) An assessment of potential for likely significant effects on other water dependent species using the lower reaches of the Garavogue for feeding spawning and nursery areas. (vi) Further evidence in relation to the functioning of the allluvial woodland habitat type. Evidence to substantiate the claim within the EIS that the increase in water level within the Garavogue will not impact significantly on the adjacent alluvial woodland as 12JA0034 An Bord Pleanála Page 2 of 33 there will been little or no change in the extent of alluvial woodland flooded during the summer growing season. (vii) In-combination impacts – further information in relation to effects of current and proposed abstractions. (viii) Detailed proposals in relation to water management and regulation. (ix) Consultation arrangements and responsibilities in respect of proposed remediation works on Pearl Rock and Cormorant Rock. (x) Evidence to substantiate claims that no significant impact on fish passage will arise. (xi) Further details in relation to works on walkways/cycleways in Doorly Park. (xii) Impact on lands in Aughamore Near and assessment of potential for flooding on local road L-36025-0 at Aughamore. (xiii) Further information on site archaeological survey. Monitoring mechanisms and remediation. (xiv) Collation of mitigation measures, timeframes, responsibilities, reporting and monitoring requirements. 1.5 Section 175 of the 2000 Act refers to Environmental Impact Assessment of Certain Development carried out by or on behalf of local authorities. Section 175(6) of the Act requires that the Board, prior to making its decision in respect of a local authority development which requires an environmental impact assessment, consider the Environmental Impact Assessment submitted, any submissions or observations in respect of the proposed development and other information furnished in accordance with subsection (5) of the Act, relating to: (i) the likely effects of the proposed development on the environment, (ii) the likely consequences for proper planning and sustainable development in the area in which it is proposed to situate the said development of such development. 1.6 Section 177AE of the Planning and Development (Amendment) Act 2010 refers to Appropriate Assessment of certain development carried out by or on behalf of local authorities. Section 177AE(6) requires that before making a decision in respect of proposed development under this section, the Board shall consider - the natura impact statement submitted and any other information furnished relating to (i) the likely effects on the environment of the development, (ii) the likely consequences for proper planning and sustainable development in the area in which it is proposed to situate the said development of such development, and (iii) the likely significant effects of the proposed development on a European Site. 1.7 As the competent authority the Board is responsible for completing and recording the Appropriate Assessment and the Environmental Impact 12JA0034 An Bord Pleanála Page 3 of 33 Assessment in respect of the proposed development. This report therefore considers the NIS and EIS submitted, the submissions and observations made in respect of the development and other information that has been submitted in respect of it and comprises: • an assessment of the likely effects of the development on the environment, • a planning assessment of the proposed development, • an appropriate assessment of the proposed development, and • an environmental impact assessment of the proposed development. 1.8 Ultimately, on the basis of the relevant issues as outlined above, this report recommends whether or not the Board should grant approval to the County Council for the proposed development. 2.0 SITE LOCATION AND DESCRIPTION 2.1 Lough Gill covers an area of 1,450 hectares, contained within a shoreline perimeter of 30.52 kilometres, and includes numerous bays and twenty one small islands. Lough Gill is 2km east of Sligo town and lies at a geological junction of ancient metamorphic rocks which produce acid groundwater, and limestone which dissolves in the groundwater. The shores of Lough Gill are lined with limestone. Parts of the lake, which reach over 20 metres in depth, feature underwater cliffs. The main inflowing river is the Bonet River which enters the lake in the southeast corner while the Garavogue River runs from the western end of the lake into Sligo Harbour. The Newtownmanor River enters Lough Gill in the east of the lake at Sriff townland. The lake is located within Hydrometric Area 35 and within the Western River Basin District. The lake shores are covered for the most part with woodland, comprising both broadleaf and coniferous trees. Other land uses include agriculture and the lake also provides for a number of recreational and amenity activities. 2.2 Lough Gill is the source of raw water for three major public water supply schemes: the North Leitrim Regional Water Supply Scheme NLRWSS operated by Leitrim County Council, the Sligo and Environs Water Supply Scheme and Carns Hill Water Supply Scheme both operated by Sligo County Council. There are also a number of other extractions which exist from Lough Gill with total current abstraction rights amounting to 31,541m 3/day. 1 2.3 The outlet flow from the lake is currently controlled by the existing upper weir on the River Garavogue at Riverside Sligo. The upper weir, which was rehabilitated in 2000 in conjunction with Phase I of the NLRWSS and the Sligo and Environs WSS, is currently set at a level of 1 Table 11.4 Details of Existing Water Abstractions from Lough Gill. EIS, September 2012. Section 11, 11.6 Infrastructure. 12JA0034 An Bord Pleanála Page 4 of 33 3.691m above Ordnance Datum (m OD) Malin Head. The upper weir consists of a curved profile structure incorporating sluice gates and a fishpass. A pedestrian footbridge situated above the weir provides access to the sluice gates and fishpass, as well as providing a link between Riverside and the Mall in Sligo Town. 2.4 The North Leitrim Regional Water Supply Scheme currently extends to 433 square kilometres or 27% of County Leitrim from Manorhamilton in the north of the scheme supply area to Drumkeeran in the south. The existing raw water intake for the NLRWSS is located in the townland of Greenaun North, County Leitrim in an area of Lough Gill known as White’s Bay. The intake consists of a submerged screen and intake pipe from where raw water gravitates to an underground tank at the adjacent intake pumphouse. From here raw water is pumped to the Water Treatment Plant located in the townland of Moneyduff. 2.5 The Moneyduff Water Treatment Plant is situated off the R286 regional road approximately 1.8km to the east of the raw water intake and approximately 2.5km north of Dromahair. The treatment process comprises coagulation, dissolved air flotation, rapid gravity filtration, pH correction, fluoridation and chlorination. Treated water flows by gravity from Moneyduff to Dromahair. Further pumping is required from Moneyduff to a high level reservoir located in the townland of Cornalaghta prior to distribution by gravity to Manorhamilton and onto Drumkeeran where a local pump station boosts supply to the town. 3.0 PROPOSED DEVELOPMENT 3.1 The proposal comprises Phase II of the North Leitrim Regional Water Supply Scheme (NLRWSS).