5179SQMP_2 PearsonsRd_Feb2021_Rev2_

                                                                             Callaghan & Toth

              c. Filter layer depth of 0.4m and extended detention depth of 0.2m.
              d. The size and depth of the systems have been designed in accordance with
                 Water by Design Guidelines.

    3. Tree Pits (TP1, TP2, TP3):
          a. Placed in catchment E.
          b. 1.5m2 filter area each.
          c. Filter layer depth of 0.4m and an extended detention depth of 0.1m.
          d. These tree pits have been designed in accordance with IPWEAQ DS-077 and
              DS-078 (see Appendix C).


4.2.3 Rainfall Data

The meteorological data used for the MUSIC Model was the data for Cooroy from 01/01/73 –
31/12/83.

The mean Annual Rainfall for Cooroy                 1973 – 1983 = 1600mm

The MUSIC Modelling Guidelines for South East Queensland – Version 1 December 2010
details that Cooroy data for 1973 to 1983 should be used.




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2035 2 Pearsons Road IWMP – Revision 2                                    February 2021