Acid Sulfate Management Plan · MCU16/0103

FPE Ref: 4956-161019-1.0


6.0 GROUNDWATER INVESTIGATION
6.1 OVERVIEW
Due to the presence of shallow groundwater onsite encountered during the investigation, a groundwater
investigation was considered necessary.

The groundwater investigation was undertaken to:
           1. Address the potential impacts to groundwater as a result of the disturbance of AASS,
                 PASS or acidic soil material.

It is understood that dewatering of groundwater will not be required for construction of the proposed
development, thus no groundwater dewatering management plan has been prepared. However, should
construction design change or dewatering is required for other reason, a dewatering plan must be prepared
prior to dewatering activities.

A regime of environmental sampling was undertaken of groundwater onsite in vicinity of the proposed
development. Details of the sampling and results are provided below.


6.2 GROUNDWATER SAMPLING
A total of one groundwater sample was collected by FPE on 11 October 2016. The sample (GW1) was
collected from Borehole 1 (BH1) from a temporary piezo installed. A groundwater standing water level
(SWL) was also recorded during the sampling. Details of the groundwater sampling location and SWL are
provided in Table 4 below.


    Table 4: Summary of Groundwater Sample Identification, SWL and Locations

                           Sample
     Description                          SWL (mBGS)                                    Location
                             ID
   Groundwater                                                               Taken from BH1, Southern end of
                            GW1                 0.83
  Monitoring Well 1                                                                       site

The groundwater sampling location is presented in the Borehole and Sampling Location Plan included in
Figure 3.

6.3 GOUNDWATER SAMPLING METHODOLOGY
All groundwater monitoring was undertaken in general accordance with the relevant statutory and legislative
requirements, guidelines and best practice methodologies.

All equipment used in monitoring was triple rinsed using CHEM-DET (laboratory grade detergent) and
distilled water prior to sampling and between sample points.




October 2016                        Acid Sulfate Soil Investigation Report                                     13
                                          New Duplex, Noosaville