Water Quality and Benthic Monitoring to support Harbour Dredging

Project Services:

Water Quality Monitoring, Benthic Community Monitoring, Information and Database Management, Environmental Risk Assessments

Assignment:

Future-Plus Environmental was commissioned as the primary consultant to undertake Water Quality and Benthic Community monitoring to support the dredging and spoil placement operations in Rosslyn Bay.

Our Role:

The Department of Transport and Main Roads (TMR) required expert environmental monitoring services as part of the Rosslyn Bay Boat Harbour Maintenance Dredging Project. The dredging maintenance project has a planning period of 10 years, with dredging works to be undertaken every 3 years from 2012. As part of the environmental management strategy associated with the dredging program, Future-Plus Environmental designed and implemented a monitoring program that assessed the compliance and actual impacts of the proposed dredging. This monitoring program comprised of water quality and benthic monitoring, and addressed four primary objectives as follows:

Install and monitor real-time (telemetry) water quality loggers at primary sensitive sites in conjunction with a control site measuring turbidity, light and sedimentation rate;

  1. Undertake vessel based monitoring campaigns to increase understanding of plume transport trends from the dredge area and disposal site;
  2. Assess and compare the condition of reef habitats at identified sensitive sites before, after and 12 months following the dredging campaign; and
  3. Assess and compare the benthic infauna assemblages and sediment particle size surrounding the disposal site before, after and 12 months following the dredging campaign.

 Outcomes:

Future-Plus Environmental achieved a successful monitoring campaign backed up with detailed scientific analysis and reporting. Through significant project planning, well developed methodologies and the necessary expertise and experience, Future-Plus Environmental provided all proposed deliverables of the highest standard to the client.