DERM Referral Agency response 132006.1168.02

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                                             SCHEDULE C TABLE 2 - MASS LOAD LIMITS

         Source             Release   Average            Nitrogen 50th       Nitrogen            Phosphorus         Phosphorous
                            Point     Annual             Percentile'         Mass Load           50th               Mass Load
                                      Flow' 12           (mg/L)              Release Limit       Percentile'        Release Limit
                                      (MUyear)                               (Kg/year)           (mg/L)             (Kg/year)
         Noosa
         Coastal
         STP                    W3         5110                  5               25 550                  1                5 110


         Notes:
         (1) The actual concentrations and annual average flows discharged are not required to be met if the respective mass loads
             discharged are able to be met using another mechanism and the increase in actual concentration limits does not
             adversely impact on the local receiving environment.
         (2) The average annual flow has been calculated from the ADWF multiplied by 1.2 to approximate expected average annual
             flows. During average rainfall years it is expected that volumes treated at the sewage treatment plant and volumes
             discharged / used for beneficial reuse purposes will approximate these volumes.

(C6)     Calculate monthly and yearly mass loads of total nitrogen and total phosphorous discharged at
         release point W3. Mass loads are calculated by the following formulae:

         monthly mass load             =          (monthly 50th%ile concentration) x (actual volume discharged)

         yearly mass load              =          (yearly 50th%ile concentration) x (volume discharged)

         Notes:
         (3) The volume for the yearly mass load calculation shall be the lesser of the:
                  •   The actual volume discharged for the period; or
                  •   The theoretical average annual flow identified in Table 2. Mass load limits less any quantity of recycled water
                      supplied or reused for beneficial purposes.

(C7)     Notwithstanding the quality characteristic limits specified in Schedule C Table 1 and Table 2,
         the release of contaminants to waters must comply with the following qualitative characteristics:

         (i)         The release must not have any properties nor contain any organisms or other contaminants
                     which are capable of causing environmental harm.

         (ii)       The release must not produce any slick or other visible evidence of oil or grease, nor contain
                    visible floating oil, grease, scum, litter or other objectionable matter.

Pump Stations

(C8)    Pumpstation NV12 located on the bank of Weyba Creek (off Weyba Road), Noosaville must not
        release any contaminants to any waters.

(C9)    Any pump station whose failure will result in a direct or indirect release of contaminants to waters
        must be fitted with a stand-by pump and pump-failure alarm. The pump failure alarm must be able to
        operate without mains power.

(C10)   Pump station overflows must be screened to prevent the release of gross solids.

(C11)   No release of contaminants from the overflow structures or other ancillary works shall occur except
        as a result of power failure, excessive rainfall, accidental damage or other emergency.

(C12)   The registered operator must implement an effective and appropriate Emergency
        Response/Contingency Plan to manage the environmental impacts of any release of contaminants
        from pump station and other ancillary equipment.




1 Permit includes licences, approvals, permits, authorisations, certificates, sanctions                              Page 8 of 21
or equivalent/similar as required by legislation administered by the
Department of Environment and Resource Management