Development Application part 2 of 2 Report and Plans MCU13/0030

                    Erosion should be repaired and investigate measures to reduce erosion e.g.
                    install rock spalls upstream of the erosion so as to dissipate the flow across a
                    broad area.

                    Dominating weeds should be removed by hand and taken to the Council’s Refuse
                    Centre.


                                        Operational Phase

Objective           The Owner is to include the Bioretention systems into their maintenance
                    program.




Actions             Inspect Bioretention systems every six months to determine maintenance
                    requirements.
                    Undertake general maintenance such as:

                              Remove accumulated litter I debris

                              Remove accumulated sediments

                              Remove weeds and dead plants

                              Replace plants where necessary
                              Water plants if necessary

                              Control erosion and sediment loss upstream or within system where
                              necessary.

                    Routine clean outs of Bioretention Systems should be planned on a ten-yearly
                    basis.


Monitoring          The Owners Landscape Gardener will carry out six monthly inspections of the
                    Bioretention Systems. The following will be examined at each inspection:

                              Sediment build up on the surface under the river stones

                              Health of vegetation

                              Pondage during major storms not infiltrating into the sand
                              Erosion at the outlet

                              Pondage during minor storms

Reporting           Inspection Records are to be logged and kept for verification of compliance on a
                    need basis.

                    Records of any maintenance are to be logged and kept on site.

                    Records of environmental incidents and corrective actions should be kept on site
                    and Owner notified of any problems.


Incidents           Sediment builds up on the surface.

                    The vegetation dies off.

                    Pondage of water is in excess of one hour.
                    Excessive erosion occurs within the system.

                    Pond age of water occurs at every minor rainfall event.

                    Weed growth occurs.


Corrective Action   The Owners Landscape Gardener will check up stream sediment control and fix
                    failures. The sediment build up will be removed without damage to existing
                    vegetation.
                    Unsuccessful plantings will be placed as required. A normal allowance of 10%
                    should be made for unsuccessful plantings.