RFI - ATTACHMENT A - SBSMP - Rev 2

                                                                                        20169 - SBSMP/2
                                                                                                    Page 13




Potential sources of contaminants identified for the construction phase of the development are
outlined in Table 6.2 together with proposed stormwater quality improvement devices,
management and maintenance procedures.

                    Table 6.2 - Potential Contaminants and Proposed Treatments

                                                                             Proposed Treatment
                                                   Management /
        Pollutant         Potential Source                                  Device and Maintenance
                                               Maintenance Procedures
                                                                                   Procedure
      Sediment &             Excavated         Provision of sediment and     Sand filled filter socks.
        Eroded              material, fill      silt barriers to the site      Removal of excess
       material          material, exposed      drainage entry and exit       sand/silt build-up at
                         ground, stockpiles              points.              regular intervals and
                            of material.                                       after every storm.
          Dust             Stockpiles of       Covering the material or       Coverage of material
                         material, exposed       wetting it down at          with plastic, geotextile,
                             ground.              regular intervals.        surface binding agents or
                                                                                regular watering.
         Litter          Refuse generated      Construction waste is to       Industrial bin is to be
                             by staff.          be cleaned off the site        provided within the
                                               area and disposed of into    construction area - to be
                                                 an industrial bin then       emptied on at least a
                                                  removed by a refuse             weekly basis.
                                                 collection contractor.
        Concrete            Washing of         Provision of a closed area   Liquids to be removed by
                             concrete          onsite for washing off of       a waste collection
                          trucks/tools to          concrete slurries.        contractor. Solids to be
                              remove                                        placed into a refuse bin.
                            wet/unused
                             concrete.
       Surfactants        Washing down          No cleaning of vehicles     Monitoring & prevention
      (detergents)         operations on       will be permitted on site.
                          hardstand area
                         using detergents.
        Chemical         Typically this may      Where spills occur, the    A temporary containment
         (Paints,           occur due to         containment area is to          area. This is to be
        thinners        spillage of product.        stop escape. The          impermeable and of a
           etc.)                                material is to be treated           size to permit
                                                    (as required) and          mixing/transfer, and
                                                removed and cleaned by      with a storage volume of
                                                 a licensed contractor.           twice the largest
                                                 Minor spillage outside            container used.
                                               this area shall be cleaned    Treatment of spills is to
                                                   up with cloths and             occur on site. No
                                                disposed of to waste via       discharge of treated
                                                   the industrial bin.      water to the stormwater
                                                                                 system is to occur
                                                                            without council approval.
                                                                                Incidents are to be
                                                                               reported to the EPA.
      Wastewater         Spillage from the       A licensed contractor         No leakage is to be
                         relocation of the     shall remove any residue      permitted to enter the
                         existing sewerage       sewage from unused         groundwater or discharge
                           reticulation.       pipes and contaminated          to the stormwater
                                                soils are to be disposed            system.
                                               of via the industrial bin.


Site Based Stormwater Management Plan
Proposed Townhouse Development at 101-105 Eumundi Noosa Road, Noosaville