MCU10/2083 Information Request Response 37 Gibson Rd Noosaville

                                                                                                   URBAN




                                    Table 8 - Construction Phase Performance Criteria

                      Pollutant                        Potential Source

                      Total Suspended Solids           90th Percentile < SOmg/L

                      pH                               6.5-9.0

                      Dissolved Oxygen                 901h Percentile > 80% saturation or 6mg/L

                       Hydrocarbons                    No visible sheen on receiving waters

                      Litter                           No visible litter washed from site



4.4       MONITORING AND MAINTENANCE

The general requirement of monitoring during the construction phase will be:

      n    Work activities are restricted to designated construction areas
      n    Earthworks and site clearing are undertaken in accordance with the Erosion and Sediment Control Plans
      n    Erosion and sediment control devices are to be constructed/installed in accordance with the Erosion and
           Sediment Control Plans
      •    Inspection of sediment fences and erosion and sediment control structures/devices on a weekly basis as
           well as after any rain event exceeding 25mm in 24hrs
      n    Stormwater discharges from the site are not having any adverse affect on the downstream environment
      n    Monitoring and recording of the performance of the drainage control devices including water quality
           testing where required
      n    Any failure in the stormwater system shall be immediately rectified to prevent uncontrolled discharge
           from the site
      •    Any failure to the stormwater system causing damage to surroundings should implement immediate
           remedial work to the damaged area



4.5       RESPONSIBILITY AND REPORTING

      n    The contractor shall be responsible for monitoring the performance of all drainage control and erosion
           and sediment control devices
      n    Records of any failures to devices should be kept and reported to the Construction Manager
      n    Regular inspections of the devices shall be reported to the Construction Manager
      •    Inspections of the devices after heavy rainfall shall be reported to the Construction Manager




 SITE BASED STORMWATFR MANAGFMI NT PLAN - Revision E        Gibson Rood, Noon 1                                     9