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Resource Quality Services water quality data exploration tool

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Water Management System Resource Quality Services Department of Water Affairs and Forestry

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Help & tutorial
Further information
Rivers and catchments in Google Earth format
Scripts used to generate this site
This browser tool provides access to more than sixty thousand water quality sites, some monitored as early as the 1950s. Some are groundwater sites with only one record, others are river sites with thousands of samples. Links are available to pre-packaged PDF graphs and data files listing the more common water quality constituents. Files for displaying data in Google Earth help you to see sites in relation to one another and to assess the strengths and weaknesses of the sampling network.

Follow one of the water quality links below and then choose whether to view data in plain-text tables or with Google Earth as a front end (for detailed help with Google Earth, download the User Guide).
Alternatively, to view only the hydrological stations labelled with "HIS" codes, choose the Rivers and Dams links.

Browse water quality sites by:Browse hydrological sites:
Primary drainage region Water management area Rivers | Dams

The Google Earth KMZ files are time-enabled: if a site is not visible, it may have starting and ending dates outside the date range set in the time slider at the top right of the Google Earth display (Google Earth version 4 and later). Move the slider and its limit bars to show sites active within a time window. Click on the small clock face (in Google Earth, not here!) for other options.

time slider

These pages are a static overview of the WMS database and may lag behind by a year or more.
Zipped comma-delimited files provided for use in programs such as Excel are not live data: the WMS database is the definitive data source.
Please address any water quality data requests to: Marica Erasmus.
Please report problems with this viewer and make suggestions for improvements to: Michael Silberbauer.


2008-08-14 08:08