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MEHL Integrated Waste Management Facility SURFACE WATER MANAGEMENT CALCULATIONS AND DATASHEETS For inspection purposes only. Consent of copyright owner required for any other use. WYG Ireland part of the WYG group creative minds safe hands EPA Export 24-08-2012:23:55:51
SuDS Site Evaluation Site Name: MEHL Hollywood Great Naul Reference: 1285691631133 Date: 28/9/2010 1. Introduction This is a site specific report to provide outline guidance on drainage and the use of SuDS. Neither HR Wallingford nor any Irish Local Authority is liable for the performance of any drainage scheme which is based upon these results. It is recommended that detailed design of any scheme is carried out before construction takes place. The following site characteristics were entered. Site Development Includes: Industrial; Drainage Ownership: Private; Site Size: Between 3 ha and 50 ha. Soil Type: 1 and 2. Land Use: Greenfield Development. Location: Uplands. Other Characteristics: Ground Water: More than 2m below surface. General The general principle behind the use of SuDS for any site is to comply with the following: � achieve adequate water quality treatment � runoff volumes should be minimised � runoff rates should be minimised Page 1 of 4 � the stormwater effluent is treated appropriately before discharge from the site bearing in mind the requirements of the receiving watercourse � groundwater must be protected in addition it is desirable to maximise the amenity potential and ecological benefits where there is an opportunity to provide this. The various suds components should not be treated as individual options, but should be seen as providing a set of drainage features (a treatment train) which are appropriate at various scales. It is always desirable to have a mix of suds components across the site to take opportunity of their respective benefits. SuDS Ownership Due to institutional and legislative constraints it is possible that the most technically appropriate solution may not be appropriate due to ownership and maintenance issues. It is essential that any drainage proposal will receive appropriate long-term maintenance. Private owners have no constraints on the use of any SuDS component. Careful assessment should be made of the risk of a change to the SuDS component occurring in the property and the impact this might have on the whole system performance. The following table summarises the current position on vesting of SuDS systems in Ireland (LA = Local Authority). http://www.irishsuds.com/evaluation.htm For inspection purposes only. Consent of copyright owner required for any other use. 28/09/2010 EPA Export 24-08-2012:23:55:51
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Appendix D.3.1: Comparison of Hazar
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Appendix D.3.3: DAC Reference Sites
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