Acid Sulfate Management Plan · MCU16/0103

FPE Ref: 4956-161019-1.0


                                                            TABLE OF CONTENTS


1.0 INTRODUCTION........................................................................................................................ 1
   1.1 BACKGROUND ...................................................................................................................................... 1
   1.2 ACID SULFATE SOILS ............................................................................................................................ 2
      Actual Acid Sulfate Soils (AASS): ......................................................................................................... 3
      Potential Acid Sulfate Soils (PASS): ..................................................................................................... 3
   1.3 THE INVESTIGATIONS ........................................................................................................................... 3
   1.4 REPORT OBJECTIVES ........................................................................................................................... 3
2.0 SITE DESCRIPTION .................................................................................................................. 5
   2.1 GENERAL .............................................................................................................................................. 5
   2.2 TOPOGRAPHY & HYDROLOGY .............................................................................................................. 5
   2.3 GROUNDWATER.................................................................................................................................... 5
   2.4 VEGETATION ......................................................................................................................................... 5
   2.5 GEOLOGY ............................................................................................................................................. 6
   2.6 SOILS .................................................................................................................................................... 6
   2.7 ACID SULFATE SOIL MAPPING .............................................................................................................. 7
3.0 SAMPLING METHODOLOGY ................................................................................................... 8
   3.1 GENERAL .............................................................................................................................................. 8
   3.2 SAMPLING LOCATIONS & METHODOLOGY ........................................................................................... 8
   3.3 FIELD PH TESTING................................................................................................................................. 8
   3.4 LABORATORY ANALYSIS ....................................................................................................................... 9
4.0 FIELD AND LABORATORY ANALYSIS ..................................................................................10
   4.1 GENERAL .............................................................................................................................................10
5.0 RESULTS .................................................................................................................................11
   5.1 PH FIELD AND PH FOX RESULTS .........................................................................................................11
   5.2 SCR RESULTS .......................................................................................................................................12
6.0 GROUNDWATER INVESTIGATION ........................................................................................13
   6.1 OVERVIEW ...........................................................................................................................................13
   6.2 GROUNDWATER SAMPLING .................................................................................................................13
   6.3 GOUNDWATER SAMPLING METHODOLOGY ........................................................................................13
   6.4 GOUNDWATER RESULTS .....................................................................................................................14
   6.5 GROUNDWATER MANAGEMENT ..........................................................................................................15
8.0 SUMMARY OF INVESTIGATIONS...........................................................................................16
   8.1 GENERAL .............................................................................................................................................16
   8.2 SUMMARY OF INVESTIGATIONS AND ANALYSIS RESULTS ..................................................................16
9.0 ASS MANAGEMENT PLAN .....................................................................................................17
   9.1 OBJECTIVES ........................................................................................................................................17
   9.2 RELEVANT LEGISLATIVE AND GUIDELINE DOCUMENTATION ..............................................................17
   9.3 ASSESSMENT AND RECOMMENDATIONS ............................................................................................18
   9.4 ASS MANAGEMENT REQUIREMENTS ...................................................................................................19
      9.4.1 Proposed ASS and PASS Treatment/Liming Rates......................................................................19
      9.4.2 Neutralisation of ASS Material ...................................................................................................19
      9.4.3 Neutralising Materials ................................................................................................................20




October 2016                                           Acid Sulfate Soil Investigation Report                                                                  iv
                                                             New Duplex, Noosaville