What do these graphs show?
Nepean Dam is a relatively small dam of less than 2% of the overall capacity of the Sydney Dam system,
the equivalent of about a month's supply for Sydney.
Over the past few years its level has ranged from about half full to nearly completely full
(in particular a spike in 2003). On several occasions in the past few years it has had events
where 4% or more of the dam capacity has flowed into the dam in a single week.
What is the history of the water level in Nepean Dam?
This graphs shows how full (in percentage terms) Nepean Dam has been since November 2001.
In particular, for the last month or so...
This graph shows the net inflow (inflow minus usage) for Nepean Dam since November 2001.
and a little more smooth...
We also have these graphs as percentages of the capacity of Nepean Dam ... to get some idea of just how volatile the
flows and levels can be
To put the size of this dam in perspective, we give the history of the Nepeandam level as a percentage of the full sydney dam system:
For more extensive and interesting analysis, please see our page on:
Extensive analysis of Sydney's Dam levels
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