Notice – Issue of final report – Petroleum environmental inspection Otway Basin 2DMC MSS

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NOPSEMA released correspondence and its final petroleum environmental inspection report, issued 31 December 2019, for the Schlumberger Australia Pty Ltd Otway Basin 2DMC Marine Seismic Survey (titles Vic-01-SPA, T-01-SPA and SA-05-SPA). The inspection, conducted onshore at Perth on 16 to 17 December 2019, tested compliance with a limitation in the 11 November 2019 decision notice. The survey vessel, Nordic Explorer, was due in Portland in early January 2020, with seismic work expected from 10 to 14 January. The report lists four inspection items and recommendations. These cover controls for acoustic impacts on pygmy blue whales, including a 10 km shutdown zone and a ban on airgun discharge in the biologically important area. They also cover consultation with southern bluefin tuna fishing interests, biofouling and invasive marine species risk, and management of change. Inspectors found no systematic process to verify that airguns would stay out of the biologically important area, and Schlumberger could not show it had assessed revised diver-safety guidance. Responses were due by 8 January 2020.