soil, debris and other pollutants disturbed and detached from the
surface of the site when earthworks begin. Through rain the sediment
can travel from your site and run into the drains and gutters entering
storm water systems and ending up in the lakes, wetlands, rivers
and finally the sea.
the levels of the lakes, wetlands and rivers increasing the risk
of flooding. It can also effect the surface water quality increasing
the filtering costs of public water supply. Another side effect
is the decrease of oxygen in the water, suffocating fish and other
aquatic life, ruining the scenic values of the waters and impacting
on the environment.