Posted on February 18, 2020
Work is underway to restore the profile of the beach on Port Lincoln’s foreshore, which was affected by runoff from the city’s flash flooding on January 31.
EP Civil, on behalf of the Port Lincoln City Council is moving sand from the eastern side of the foreshore to the western side with flood delivered silt and debris to be excavated and removed to landfill.
The council’s business manager – infrastructure and regulatory services Jade Scott said dependent on factors including sand logistics works were estimated to take place over eight or nine days.
She said environmental consultants found that silt deposits that originated from flash flood water contained standard storm-water contaminants such as hydrocarbons and heavy metals from road runoff.
Mrs Scott said bad smells detected along the foreshore recently originated from decomposing sea-wrack (seaweed) sitting in ponded water within erosion gullies created from the flash flooding event.
“Under the right temperature conditions and full sun, it will start to break down and produce hydrogen sulfide, or rotten egg gas,” she said.
Mrs Scott said works were prioritised for the Port Lincoln Yacht Club end but would go all the way down to the near the Port Lincoln Hotel and fig trees.
The council is also working with organisations including the Barngarla Determination Aboriginal Corporation, Coastal Protection Board and the Environment Protection Authority for the cleanup.
Source: portlincolntimes.com.au
