Collection: Tech Book

Report from the Electoral Districts Redistribution Panel on the 2021 electoral districts of NSW. Report contains coloured maps of each electorate.

Algal concentrations in some reaches of the river exceeded 600,000 cells/mL with most samples containing algal toxins. Blue-green algal blooms were also present in the Windsor to Wiseman Ferry stretch of the Hawkesbury riverin december 1991 and january 1992.

Media release and information about the construction and running of the new aquatic and recreation centre at St Marys.

To enable individual local authorities to maximise the efficiency and effectiveness of the services they provide it is necessary to have them operate within a structure for local government as awhole which will allow this goal to be achieved.

Gives a very brief overview of nitrogen pollution sources, the global nitrogen cycle and the treatment methods. Also gives details of all biological methods for nitrogen removal and the physico-chemical nitrogen removal methods.