The excavation of the channel for the Kestrel storm diversion pipe will result in the temporary removal of habitable land where the channel is dug and around a small area along its length. This is assumed to be from the physical excavated hole, resulting dense and waterlogged soil which is a possible outcome of excavation as well as human presence and construction equipment.
Once excavation of the first pipe begins there will be a displacement of small volumes of soil and sediment around each section of pipe. These are to be stored on site and used to fill the hole after the pipe is placed. Any excess is to be collected by trucks and transported elsewhere. A portion …show more content…
This is assumed to be a consequence of the physical excavated hole, dense and waterlogged soil possibly caused by excavation, as well as human presence, construction equipment and small water body produced from directional drilling.
Once drilling for the connecting pipe begins there will be a displacement of moderate volumes of soil and sediment from beneath the surface. These are to be stored on site and used as material for the construction of the artificial island on Site 1. Any excess is to be collected by trucks and transported elsewhere. A portion of this soil and sediments which cannot be completely collected will leach into surrounding water supply, impacting on the quality of the water as a source for local fauna and flora and quality of the water which flows into the Yarra River. This could result in a minute drop in quality of fauna and flora life, encouraging sediment sensitive animals to leave the area and attract sediment tolerant species. Furthermore, moderate deposition of sediment in Kestrel creek slightly hampers its ability to clean water and moderate deposition of sediment in the Yarra River decreases its quality and impacts on river …show more content…
This is largely due to the repositioning of animals and removal of most plant and life during the excavation and the displacement of dirt and sediments.
Once excavation of “Site 1” begins there will be a displacement of very large volumes of soil and sediment. These are to be stored beside the site and used to build up the artificial island. Any excess is to be collected by trucks and transported elsewhere. A portion of this soil and sediments which cannot be completely collected or used as material for the island will leach into surrounding water supply, impacting on the quality of the water as a source for local fauna and flora and quality of the water which flows into the Yarra River. This could result in a moderate drop in quality of fauna and flora life, encouraging sediment sensitive animals to leave the area and attract sediment tolerant species. Furthermore, small deposition of sediment in Kestrel creek slightly hampers its ability to clean water and relatively large deposition of sediment in the Yarra River decreases its quality and impacts river