| № | Median Chl a μg/L  | 
n | Median TP mg/L  | n | 
Name (click here to see all sites in Google Earth or select a name below to show just that site in Google Earth)  | 
Plot Chl a TP  | 
Plot all chem  | 
Secchi disk  | 
T oC  | 
O2 mg/L  | 
|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 0.123 | 6 | Roodeplaat Dam on Pienaars River: near Dam Wall |  
 | chem | Secchi | T | O | ||
| 13 | 0.156 | 6 | Roodeplaat Dam on Pienaars River: Point in Dam |  
 | chem | Secchi | T | O | ||
| 81 | 0.035 | 3 | At Vaalharts Barrage on Vaalrivier: near Barrage Wall |  
 | chem | Secchi | T | - | ||
| 285 | 0.046 | 4 | Espagsdrif Seoding 25 Bridge at the Weir on Harts River |  
 | chem | - | - | - | ||
| 292 | 0.037 | 5 | Bloemhof Dam on Vaal River: Down Stream Weir | 90908 no chart | chem | - | - | - |