Groundwater Monitoring Data
Groundwater Levels - PA1
Groundwater monitoring is crucial if we are to understand how aquifers respond to rainfall and pumping. We monitor the groundwater level in a borehole at our office.
You may view or download:
- the position of the borehole in Google Earth (KMZ file);
- the log of the borehole, in JPEG format; or
- a time series graph of the monitored groundwater levels, in JPEG format.
Though the monitoring record is short, an inter-seasonal range of about 1.5m is apparent (blue line). Response to winter recharge is observed between May and October, while the groundwater level gradually drops from December to April.
The effect of our neighbour pumping his borehole is also apparent. The boreholes are about 30m apart. He pumps his borehole in the summer months to irrigate his garden. Pumping is irregular, but generally last for between 6 hours and 48 hours. This induces a drawdown of about 0.75m in the monitoring borehole.