Derwent Estuary

This is a region of Hobart, Tasmania, called the Derwent Estuary.  Fresh water comes from the River Derwent starting near New Norfolk. The sea water comes from the Tasman sea and Southern Ocean.  The fresh water and salt water mix together here in the Estuary.

This is a storm water drain. There are eight storm water drains along Sandy Bay Beach. This water comes from Mt Wellington and Hobart city. Sometimes this water is dirty. Dirty water pollutes the estuary.

The web sites below relate to the River Derwent and  many projects relating to the water quality and sustainability. Recently   sewage pipes were replaced along Sandy Bay beach and other places in Hobart. The old pipes, some over 100 years old, were beginning to leak into the estaury.

Youtube Video - Hugo's Tips for Healty Waterways 
ABC Article - New Pipes in Sandy Bay
 

Ini daerah di Hobart, Tasmania, namanya Derwent Estuary. Air segar datang dari Sungai Derwent, mulai di New Norfolk. Air laut datang dari Tasman Sea dan Southern Ocean. Air segar dan air garam yang campuran di dalam muara.

Ini Saluran Air Badai.  Ada delapan Saluran Air Badai disamping pantai Sandy Bay. Air itu datang dari Gunung Wellington dan Kota Hobart. Kadang-kadang air itu kotor. Air kotor mengotorkan muara.