CDIM Engineering provided environmental consulting services to the Port of San Francisco in support the Mission Bay Ferry Landing Dredge and Site Preparation Construction Project. The project involved demolition, dredging and sediment capping to support the future construction of a ferry terminal at the site.
Project Highlights:
Vessel-based water quality monitoring during dredge and cap placement
Real-time monitoring and at-depth sampling for high resolution chemical analysis
Project completed ahead of schedule and under budget.
In additional to being the overall consultant project manager, CDIM was technical lead for water quality monitoring. Over the six-month project, CDIM assisted its client to by using 17-foot vessel to perform 16 water quality sampling events and ten dredge vessel inspections to assess project compliance with Clean Water Action 401/404 permits. CDIM negotiated with multiple laboratories for best value for short turnaround analysis of a specialized list of polycyclic aromatic hydrocarbons. CDIM then developed safety protocols for work over water and infectious disease prevention in coordination with selected contractor and on behalf of the consultant team. CDIM then used its vessel to collect water quality measurements and samples at depths of up to 30-feet. CDIM used submersible water quality meter and high-resolution global navigation system device to determine real-time water quality compliance. Samples were then sent to a laboratory for short turnaround for analytical testing. Results were reported daily to the project team and at project conclusion to the California Regional Water Quality Control Board.