1209 SWQMP Report_3 2013

                                                                                       Callaghan & Toth

                         Pondage of water is in excess of one hour.
                         Excessive erosion occurs within the system.
                         Pondage 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.
                         Ensure watering rates are adequate and investigate plants with higher drought
                         tolerances if significant numbers of plants die during dry periods.
                         Replace geotextile, check and if necessary replace sand media with coarser
                         sand. Check that slotted pipe is not blocked and outlet free draining. Replace and
                         repair where necessary.
                         Erosion should be repaired and investigate ways to reduce erosion occurrence
                         e.g. place 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.



                                       RAINWATER TANKS
ISSUES                   PROCEDURES

                                                Design Phase

Objective                Ensure that rainwater tanks have sufficient water capacity to supply the
                         designed potable needs.


Actions                  The Consulting Engineer is to ensure that:
                              •   Tanks are sized in accordance with this Integrated Water Management
                                  Plan.
                              •   Appropriate first flush diversion systems are installed on tanks
                              •   Rainwater tanks are installed with stainless steel mesh guards on any
                                  inlet and exit points
                              •   Tank overflows are to a stabilised point to prevent erosion
                              •   Tanks are fitted with an appropriate top up system, to allow
                                  supplementary dam water supply once tanks reach 10% capacity.
                                  There should be a suitable ‘air-gap’ provided between the top water
                                  supply level in the tank and the supplementary supply to prevent
                                  backflow.

Monitoring               Developer is to review the Works Plans and Building Plans.

Reporting                Works Plans and Building Plans are to be provided to consultants, developer
                         and contractor.


                                                                                                     E
1209 Animal Husbandry – Top Forestry Rd, Ridgewood                                   SWQMP_REV_3
SEPTEMBER 2013