PART Response to Information Request · OPW11/0335

  4.0       RECEIVING WATER QUALITY


  Water quality in the terminal wetland was measured by Simmonds and Bristow on the 10th July
  2009, after rainfall and a stormwater flow event, to describe the existing physical-chemical and
  nutrient status of the receiving waters before the proposed Essence of Peregian development.
  A sample location map is shown in Appendix B. The existing water quality parameters (Table
  4-1) indicate that the water quality in the terminal wetland was poor for turbidity, suspended
  solids, total nitrogen and total phosphorus. Indicator concentrations that exceed the guideline
  concentrations based on the level 2 environmental values associated with the Noosa River:
  Environmental Values and Water Quality Objectives are highlighted in Table 4-1.

  The Essence of Peregian Stormwater design will install water sensitive urban design features to
  ensure that the quality of water entering the Noosa National Park is of better quality than that
  currently discharged.

  A map of the water quality sampling points has been included as Appendix F.

Table 4-1: Water Quality Measured in the Terminal Wetland of the Existing Caravan Park Site
   Water Quality Indicator                        QWQG          WS 01       WS 02       WS 03       WS 04       WS 05       WS 06

   Conductivity - on site (µS / cm)                              250          290         470         200         180         230

   pH - on site*                                    5-7           6.4         6.7         7.1         6.4         6.4         6.0

  Ammonia as N (mg / L)                             0.02        0.050        0.25        0.22        0.13        0.054       0.046

   Nitrate as N (mg / L)                             NA          0.01        0.04        0.06        0.04        0.01         0.04

   Nitrate + Nitrite as N (mg / L)                  0.06         0.02        0.05        0.07        0.05        0.02         0.04

   Nitrite as N (mg /L)                              NA         0.007       0.007        0.006       0.007       0.006       0.004

  Total Nitrogen as N (mg /L)                        0.5          11          31          43          9.7          11         0.7

  Total Phosphorus as P (mg / L)                    0.05          1.4         3.8         2.7         2.0         2.0         0.41

   Orthophosphate as P (mg / L)                     0.02         0.12        0.10        0.13        0.16        0.15        0.094

   Colour - True 0.45 µm (Pt-Co units)               NA          110          120         130         140         120          87

   Faecal Coliforms (CFU / 100 mL)                               160        16,200       1,120       1,800        720         <10

   Suspended Solids (mg / L)                          6          720         2500         900        1000        1200          26

  Turbidity - Raw (NTU)                              50          280         420          460         510         380          20
 * Joint Experts Conference indicated that the low pH water quality objective is suitable on the basis of the
 wallum/tannin stained character of the receiving waters.
 QWQG = Queensland Water Quality Guidelines.
 Water quality indicators that exceed the environmental values have bold font and shaded background.




 ©2012 Simmonds & Bristow Pty Ltd                        Contrast Constructions                          J-1005-310 - 13 January 2012
 11CLIENTFILES\Contrast Construdions11108-155c - Essence of Peregian SCEP Stage 1 Update109_Output Documents11108-155C_SWMP
 SCEMP_Scanlon Property Group_V3.0_ta,_120113.doc                                                                         Page 5 of 24