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Any ditches or other water features will be regularly inspected and maintained to ensure their effectiveness. All excess silts will be removed and disposed of within site earthworks. Where check dams have become fully blocked with silt, they shall be replaced in accordance with the following procedure:


o Silt deposits to be removed


o Removed silt to be disposed of by spreading in an area of the site where surface run-off will not convey silt deposits back to a watercourse.


189


Ditches will remain in place to convey surface water flows during the operational life of the development. The ditches will therefore be seeded or turfed as soon as they have been formed to ensure their maximum effectiveness.


190


The Site Management team will call on specialist consultants (i.e. ecologists, hydrologists, ornithologists etc) as required to ensure that construction is being carried out in accordance with the requirements set out in the Environmental Statement, the conditions attached to the planning permission, environmental best practise and other approved Method Statements.


191


During construction works, there is a potential for contamination, emanating from construction plant or materials to enter the controlled surface and groundwater either by direct runoff, leaching or infiltration. Consequently, it would be necessary to monitor the concentrations of certain key contaminants at key locations throughout the construction phase. These sampling points would represent a selection of relevant watercourses and available wells, where present.


192


The location of the sample points would reflect the location of the relevant Private Water Supply to the proposed active construction areas. Sampling points up-stream and down-stream of the construction activity area should also be selected to provide a full profile of the Private Water Supply.


11.10.1 Sampling Interval


193 Site sensitivity will be taken into account when deciding on the level and periodicity of sampling. The proposed monitoring plan would be discussed and agreed with the Environment Agency prior to commencement.


11.10.2 Reporting


194 A baseline report would be prepared following the baseline water quality monitoring programme. This report will provide details of any contamination concentrations recorded and will be used to depict “uncontaminated background pollution levels” for


Outline Code of Construction Practice. Version 3. Page 57


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