Development Application part 2 OF 2 All of CD, Information in notes - MCU12/0216

CSR West Ridge Quarry
Ecological Assessment Report



           Column 1                            Column 2                                                 Assessment of Impacts and Recommendations
       Specific outcomes               Probable solutions (if code
                                             assessable)
 separation between the                                              encompasses a considerable area of this 100m buffer area.
 wetland and any adjacent
 development or use;                                                 Potential impacts to Six Mile Creek would result from inappropriately controlled construction activities such as
 b)       minimising      any                                        release of pollutants and sediment and uncontrolled clearance of vegetation etc. Managing water quality is the
 modification of the natural                                         principal environmental issue for CSR’s mining areas and is recognised as such in the PoO. In particular, the
 characteristics     of    the                                       control of erosion, sediment transportation, sediment capture and pH to protect downstream water quality. Six
 wetland,     including    the                                       Mile Creek will be protected by the following measures.
 topography, surface and
                                                                       At least 100m of separation from the area of disturbance to the mapped watercourse and associated
 groundwater       hydrology,
 water quality and flora and                                             mapped remnant vegetation (distances will be shown on a plan).
 fauna species;                                                       A 20m setback from the eastern most boundary of the mining lease.
 c) preventing any new                                                CSR’s requirement to comply with their Environmental Approval (EA) conditions for their activities,
 development            within
                                                                         specifically:
 wetlands;
 d) minimising access to the                                                 diversion bunds above the extractive areas to divert clean stormwater runoff around the disturbed area;
 wetland;                                                                     and
 e)   minimising      impacts                                                establishing a system of stormwater controls for stormwater runoff prior to release as currently required
 associated with pest insect
                                                                              under the EA, and likely to be imposed by DERM through the conditions for ERA 16.
 control and invasion by
 undesirable plant species;
 and                                                                 Other areas present within the proposed disturbance areas which are not recognised in regulatory mapping, may
 f)   providing     for    the                                       achieve the definition of a wetland* under The Noosa Plan. Due to the nature of a quarry operation changes to
 rehabilitation           and                                        ground levels and the need to control outflows have resulted in the creation of water storage dams and sediment
 replanting of degraded                                              traps in the existing pit, in accordance with the mining lease. The necessity to alter ground levels and store
 wetlands.                                                           stockpiles during the West Ridge Quarry mining process has also resulted in the formation of small waterbodies
                                                                     around the quarry pit:
                                                                       a small drainage at the southern end of the eastern disturbance area (refer Plate 5);
                                                                      a small drainage line along at the southern end of the western disturbance area (refer Plate 6); and
                                                                      a small waterhole is present within the eastern disturbance area (refer Plate 7 below).

                                                                     However these shallow and artificially formed water bodies are the result of standard mining operations under
                                                                     the approved mining lease.

                                                                     The proposed works would achieve Specific Outcome 04.




CSR Building Products Ltd                                                          Version 3                                                                     4 December 2012
Ecological Assessment Report V3.docx                                         Commercial in Confidence                                                                   Page 18