A selection of data and reports related to water.
Water quality results
The national monitoring programmes mostly monitor "raw" surface water quality in rivers and dams and
produce long-term trend reports and visualisations of, for
example, chemistry, eutrophication, microbiology and ecosystems.
Browse water chemistry time-series graphs using Google Earth or text
lists.
You may also request archived "raw" water quality data from the Resource Quality Information
Services national monitoring programmes for specific rivers and dams by E-mail.
For retrospective studies,
download an inorganic water chemistry
dataset of rivers, dams, and lakes in South Africa, prepared from the DWS data, 1972-2011, by North-West
University.
The DWS NIWIS dashboards integrate water-related data from many sources.
More ways of viewing water quality information
For other data requests, please try the following links:
Laws and Guidelines
Water Resource Quality Monitoring Protocols
Sustainable Development Goals
Water Quality Investigations
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The water quality of Bospoort Dam [PDF
1.5Mb] 2008-Oct
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Report on an Integrated Water Quality
Monitoring Programme Conducted in the Town of Delmas, November 2005 to June 2006 [PDF 8Mb] 2007-May
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Suitability of Water within the Tswaing
Crater Nature Reserve for Domestic Use [small PDF] [print PDF] 2005-May
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Fish Kill in Roodeplaat Dam [PDF]
2004-Oct
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National Water Resource Quality Status Report:
Inorganic Chemical Water Quality of Surface Water Resources in SA ? The Big Picture. [PDF 8.5Mb] 2002
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Water Resources Management Plan in the Diep River Catchment:
A Situation Assessment, 2002, N/G210/REQ/1200
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Water Quality in the Elands River and Lindleyspoort Dam,
2001-Jul [small PDF] [print PDF]
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Toxic Algal Incident In Grootdraai Dam, 2001-Jul [small PDF]
[print PDF]
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Fish Kill in the Apies River [PDF] 2000-Oct
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Pollution incident in Roodeplaat Dam 2000-May
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Fish Kill in Hartebeespoort Dam 1999-Nov
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Water Quality of Ebenezer Dam 1999-Aug
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Phosphorus transport in the Berg River, Western
Cape 1989 (TR 143, PDF, 19Mb)
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Drought Relief Programme:
an assessment of the quality of boreholes for potable use - January 1994 to October 1995 - Kühn, A.L., Kempster, P.L. and Everett, A.
(Part 1, low resolution)
(Part 1, high resolution)
(Part 2, low resolution)
(Part 2, high resolution)
Chemical
Radioactivity
Biological
Microbiological
Geographical, GIS and EO
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Links to geographical data, e.g. slopes, ecoregions, rivers,
catchments.
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What is a Maucha diagram? (PDF)
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River coverage project (2003 poster, 1Mb)
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Revisiting Rietspruit: Land Cover Change and Water Quality in South
Africa (Showalter et al. 2002, 0.5Mb)
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River coverage project (1999 report, HTML)
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Channel Slopes in the Olifants, Crocodile and Sabie
River Catchments (PDF 3Mb)
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A Qualitative (GIS Based) Model of Nonpoint Source Areas
(Modelling Suspended Sediment in the Olifants River Catchment) (1999, HTML)
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Salinity problems in the Douglas Weir and Lower Riet River
(Moolman & Quibell 1995)
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Changes in urban residential land in the Rietspruit catchment, southern
Gauteng
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Water Resource Management and Remote Sensing [850Kb]
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Mapping the integrity of the Vaal River habitat using a
helicopter, a video camera and a GIS. 1996 Poster [100Kb] [650Kb]
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1996 DWAF presentation standards for GIS users
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A partially self-updating GIS metadata system
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The application of geographic information systems to water quality
monitoring
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The South African Gauss Conform Projection
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Raster to Vector conversion in a Local, Exact and Near optimal manner.
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Surface water quality of South Africa. The
Vaal River catchment: 1979 to 1983. 1986 (JPG, 1.3Mb)
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Landsat water quality
surveillance--development of the model CALMCAT 1986 (PDF, 13Mb)
- Remote sensing applications in water resources: colloquium papers (October, 1985)
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Howman:
Quantifying water quality conditions using LANDSAT (pdf) 1985
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Looser: Monitoring soil erosion and land-use change in Natal using remote sensing with special
reference to the Mfolozi catchment (pdf) 1985
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Maaren:
Use of satellite remote sensing in mapping irrigated land-use (pdf) 1985
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Seed: Use of image
processing technology in hydrology (pdf) 1985
HRI Archive
International contacts archive
Assessment tool development archive
Archived spatial data queries
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