Response to Information Request - REC13/0015

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 APPENDIX 1:                    Preliminary Stormwater Quality Management Plan
                                        EROSION AND SEDIMENT CONTROL PROCEDURES
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                                                                    Construction Phase


Objective   Minimise erosion of soils during civil works construction.

            Minimise loss of sediment from site during civil works construction.

            E&SC measures shall be designed to achieve discharges from the construction site during rainfall events (1 year ARI) to meet the following
            criteria:

                 ~      pH 6.5 to 8.5
                 ~      Suspended Solids < 50mg/L (80th percentile)
            Turbidity to be calibrated.

            Description                                                                                  Responsibility            Timeframe


            .   Install construction fencing to ensure works only occur within designated area.          .   Foreman               .      Prior   to          works
Actions
            .   Establish a single stabilised entry / exit point.                                                                         commencing
            .   Trucks shall use designated entry to site works areas and shall be washed down at a      .   Foreman               .
                                                                                                                                          Ongoing
                prior to exiting the site.
            .   Undertake drainage control measures including:                                           .   Foreman               .
                                                                                                                                          Ongoing
                           -

                                Bypass ’clean’ up-slope water around any soil disturbances
                           -
                               Transport stormwater through the work site in a non-erosive manner
                           -
                                Minimise hydraulic damage to the adopted erosion and sediment control
                                measures     during storm events.
            .   Undertake erosion control measures including:                                                                      .
                                                                                                                                          Ongoing
                           -
                                Limit the area of exposure
                                                                                                         .   Foreman
                           -
                                Progressive stabilisation of disturbed areas with native groundcovers
                           -
                                Heavy mulch to cover on disturbed areas open without activity for more
                               than 20 days
            .   Undertake sediment control measures including:                                                                     .
                                                                                                                                          Ongoing