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Groundwater Levels - September 2010
The groundwater section of the Monthly Water Report is updated on a quarterly basis. The next update will be December 2010.
A new approach to determining trends was adopted in the December 2009 report. This approach recognises changes in season and distinguishes between short and long term trends.
Groundwater level trends in Water Supply Protection Areas (WSPAs) and Groundwater Management Areas (GMAs) as of September 2010 are summarised below.
- Of the 23 WSPAs, groundwater levels in 15 areas are recording short term decline (<5 years), 9 areas are recording long term decline (>10 years), and the remainder are stable.
- Management Plan’s either have been prepared or are being prepared in 12 WSPAs with Management Plans completed for Warrion and Koo Wee Rup in August 2010. Local Management Rules are now in place in the Mid Loddon WSPA.
- Of the 38 GMAs, 15 areas are recording short term decline (< 5 years), 14 are stable, and there is insufficient information (through lack of state observation bores) to determine a trend in the remaining 9 areas.