Port of Hay Point. Ports and Coastal Environmental Pty Ltd. Maintenance Dredging Sampling 2013 North Queensland Bulk Ports

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1 Port of Hay Point Maintenance Dredging Sampling 2013 Ports and Coastal Environmental has completed sediment sampling for the 2013 maintenance dredging campaign at the Port of Hay Point. Works included sampling from over 100 sites within the Departure Path, Apron, Berths and Tug Harbour. Liaison between PaCE and the Port operators (BHP Billiton Mitsubishi and DBCT) provided maximum sampling efficiency with minimal impact to shipping. Sampling included a combination of grabs and vibrocores. Vibrocores were taken from the Berth Pockets in waters to 27m, recovering unconsolidated cores to a depth of 2m. The lightweight nature of PaCEs vibrocore allows ease of deployment from our 6m commercial vessel. A GPS integrated motor keeps the sampling vessel onsite without the need to anchor, invaluable between shipping movements and maintaining sample site accuracy. Results are being applied to the development of Commonwealth ocean disposal applications and dredge management planning for the port. aliquam ullamcorper nostrud +61 on exerci request

2 Port of Skardon River Benthic habitats and water quality 2011 and 2012 Cape Alumina Ltd Cape Alumina Limited engaged Ports and Coastal Environmental to conduct wet season water quality monitoring over the season (October to March). Sampling was conducted throughout the Skardon River estuary, extending from the proposed barge load-out facility, to the river mouth. Surveys incorporated laboratory sampling and deployment of physicochemical loggers at key locations. In addition to water quality, benthic infauna communities were also surveyed as a dry season and wet season program. Samples were obtained using benthic grabs and sieved on-site to 0.5mm. Samples were preserved and stored for future analysis. Seagrass habitat distributions were also assessed within the vicinity of the proposed barge facility. Given the turbid waters and complex bathymetry, survey was undertaken using high resolution still images. The camera was motion activated and recorded images of the substrate as it came into view. Survey confirmed a very thin seagrass zone less than 1m wide given sharp bank profiles and low ambient light conditions. aliquam ullamcorper tation Graham ullamcorper. Sherlock Et iusto odio Managing Director

3 Port of Mackay Slipway Sediment Survey 2012 Ports and Coastal Environmental was commissioned by North Queensland Bulk Ports (NQBP) to survey the chemical characteristics of sediments adjacent to the existing slipway and decommissioned Berth 2, Port of Mackay. NQBP is presently considering options for redevelopment of this area, and has conducted investigations to inform management of any potential issues regarding dredging, handling or disturbance of underlying sediments. Given the previously identified impact adjacent to the slipway, a gridded sampling design was adopted to best define the extent of sediment impact. Vibrocores to 2.0m were obtained in waters from 5.0m to 15m depth. Side scan sonar was used to identify potential sediment mobilization patterns and substructure at the decommissioned Berth 2 site, (potential risks to sampling equipment due to wire rope and concrete blocks). Results were contoured to assist in defining extents of target analytes, and data compared against the NAGD thresholds. Samples were screened for acid sulfate. aliquam ullamcorper

4 Port of Weipa Maintenance Dredging Sampling 2013 Ports and Coastal Environmental developed the Sediment Sampling and Analysis Plan (SAP) and implemented the sediment sampling program for the 2013 maintenance dredging campaign at the Port of Weipa. Sampling was conducted from 8 dredge areas and 90 sample locations, including the Southern Channel, Inner Harbour and Berths. Analysis of previous sampling investigations identified a risk of progression to Phase 3 and Potential Phase 4 analysis under the National Assessment Guidelines for Dredging (NAGD). To account for this, some 500kg of additional sediment was sampled and stored at the analyzing laboratory for potential additional tests. Sampling was undertaken using PaCEs 30L Van-Veen Grab, large enough to conduct all tests, and provide improved penetration within the sediments to be sampled. aliquam ullamcorper

5 Port of Weipa Capital Dredging Sampling 2011 Ports and Coastal Environmental developed the Sediment Sampling and Analysis Plan (SAP) and implemented the sediment sampling program for the capital dredging program at the Port of Weipa. The proposed works included extension of the channel by 2500m and the removal of several high spots within the inner harbour. The SAP was approved by the Commonwealth and the sampling commissioned during October, Vibrocore samples to 1.0m were recovered from the extension and inner harbour. A combination of aluminum and polycarbonate cores were used, with improved penetration being obtained from the thinner walled aluminum. Results concluded materials as being suitable for unconfined ocean disposal under the NAGD. aliquam ullamcorper

6 Port of Bunbury Sediment characterisation and dredge management planning 2011 Wave Engineering Solutions Ports and Coastal Environmental developed the Sediment Sampling and Analysis Plan (SAP), sediment characterisation report and drafted elements of dredge management plan for a coal export project at Bunbury, Western Australia. Wave Engineering solutions commissioned these works on behalf of Lanco Resources Australia Pty Ltd (LRAPL). The SAP and sediment characterisation report followed the requirements of the NAGD regarding design, analyte selection and sampling methodologies. Sampling was undertaken by Wave Engineering, and data processed by PaCE. The dredge management plan considered the proponents proposal with respect to dredging, disposal, existing environment and potential ecological impacts. Monitoring, management and response processes were defined. aliquam ullamcorper minim veniam, quis nostrud exerci iusto odio Client contact nostrud Dr Damian exerci tation Ogburn ullamcorper. Et

7 Port of Weipa Long-term Dredge Management Plan 2011 Ports and Coastal Environmental was commissioned to revise and extend the existing Long-term Dredge Management Plan (LTDMP) for the Port of Weipa. Maintenance dredging is conducted at the Port of Weipa annually. Volumes range between 600,000m 3 to 1,000,000m 3 pending the extent of wet season effects and the passage of tropical cyclones. The LTDMP describes the dredging history and needs for the Port. The existing environment is detailed and the predicted impacts of maintenance dredging are discussed. Management and monitoring initiatives to mitigate and avoid environmental harm are also presented. This includes integration of a TACC within the review process. The LTDMP is an important operational framework for the Port of Weipa, and supports the 10 year approval obtained for ocean disposal. aliquam ullamcorper

8 Dudgeon Point EIS Sediment Characterisation Surveys 2012 WorleyParsons Pty Ltd Ports and Coastal Environmental was commissioned by WorleyParsons to conduct sampling within Half Tide Tug Harbour and the proposed alignment of several port options at the proposed Dudgeon Point Port. These works were conducted as part of broader environmental assessments supporting the EIS process. PaCE utilized the services of Abyss Dive, for vibrocore and vessel support. Samples to 3m were obtained from Half Tide Tug Harbour, refusing on consolidated clays. The proposed port alignments resulted in much shorter cores, with only a thin veneer of sands and silts overlying shallow clay and rock. PaCE provided on-vessel supervision and on-shore processing of samples. This included screening for acid sulfate soils and preparation of laboratory samples for dispatch to the analyzing laboratories. aliquam ullamcorper tation Stephen ullamcorper. Neale Et iusto odio WorleyParsons