Friday, 19 June 2009 | 0 Comments
The Sydney Catchment Authority provide weekly statistics on water use and storage, including an interesting graph that’s been kept since 1998.
Unfortunately, the graph is not very high quality to show on a projector. The Quarterly drinking water quality report has a higher quality version (not as recent) in a PDF.
There’s lots to discuss from this graph and other information on the site.
Related, but not necessarily available to everyone – find out if your school has a Watersave Smart Water Meter. Inline with our water supply, this device sends data to the internet every 15 minutes about our school’s water usage. Teachers and students can get access to the data through a web-site, and can change settings of the graph displayed and also download the data for further analysis in Excel.
This graph shows Monday-Friday of last week (Monday was a public holiday). Clearly our school has some water leaks.
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Simon Job — eleventh year of teaching maths in a public high school in Western Sydney, Australia.
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