6. Noosa River DMP Ver0 (Combined)

                                       Requesting Endorsement of Sediment Sampling and Analysis Plan
                                              BMT (OFFICIAL)



Nitrile gloves will be worn by all field personnel handling the sediment, and gloves will be disposed of
after processing of each core sample.

Utmost care will be maintained in ensuring that cross-contamination between samples is not possible.
Samples collected from each interval will be placed into appropriately cleaned and preserved
containers (labelled prior to filling) provided by the analytical laboratories.

Following sample processing and filling of sample containers, all samples will be immediately chilled.
The chilled samples will be submitted to the laboratory under appropriate Chain of Custody
documentation to ensure that the sample possession and processing can be traced from sample
collection to reporting of results.

Core Log
All sediment cores will be geotechnically logged upon collection on a standardised pro-forma. The
following information will be recorded:

•   Project name and number
•   The name of the sample collector
•   Date and Time of sampling
•   Type of core sampler used (vibro-corer/ piston corer, type of core barrel used or manual excavation)
•   Field sample number
•   Northing and Easting of sample location (from onboard GPS)
•   Sediment colour
•   Sediment odour
•   Field texture (fine sand, silt, clay, sand, clayey sand)
•   Tidal predictions and water depth at sample location (derived from onboard depth sounder)
•   Weather and sea state conditions at the time of sampling
•   General comments pertaining to the sample (e.g. presence of organic matter or benthic organisms,
    etc.).

3.7 Health and Safety and Contingency Plan

Health and Safety
The vessel skipper will keep in close contact with Harbour Control during sampling. The study site is
situated away from the main navigational channel and out of the path of any likely vessel traffic.
Therefore interaction with other traffic is considered unlikely while sampling is being conducted.
Regardless, interactions with other vessel traffic will be minimised by being mindful of approaching
vessels.

A single anchor may be used to anchor the vessel; alternatively stern anchors may also be used if
necessary. The main anchor would be placed upstream and upwind of the vessel. A marker buoy may
be placed on the anchor if required.

The sampling vessel will display appropriate flags for the work being carried out during the survey.




A10342 | 002                                          21                                  15 November 2021