| № | Site [ view Lower Vaal sites in Google Earth ] |
Plot all data | Date | MPN, or cfu / 100mL |
Turb. NTU |
pH | Temp. oC |
Risk based on E. coli if recorded, otherwise on faecal coliforms | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E. coli | faecal coliforms | drinking- no treatment |
drinking- limited treatment |
full or partial contact |
irrigation- crops eaten raw |
|||||||
| 1 | 101770 [2-month plot]
Smidts Drift Outspan 23 Schmidtsdrift at Weir on Vaal River |
|
2012-03-12 | 24 | - | - | - | - | HIGH | low | low | low |
| 1 | 101770 | 2012-04-10 | 37 | - | - | - | - | HIGH | low | low | low | |
| 1 | 101770 | 2012-04-30 | 73 | - | - | - | - | HIGH | low | low | low | |
| 2 | 188487 [2-month plot]
Gong Gong D/S Barkly West on Vaal |
|
2012-03-12 | 12 | - | - | - | - | HIGH | low | low | low |
| 2 | 188487 | 2012-04-10 | 50 | - | - | - | - | HIGH | low | low | low | |
| 2 | 188487 | 2012-04-30 | 22 | - | - | - | - | HIGH | low | low | low | |
| 3 | 188489 [2-month plot]
Doornfonteyn Middelplaats D/S Warrenton on Vaal |
|
2012-03-12 | 127 | - | - | - | - | HIGH | low | low | low |
| 3 | 188489 | 2012-04-10 | 32 | - | - | - | - | HIGH | low | low | low | |
| 3 | 188489 | 2012-04-30 | 30 | - | - | - | - | HIGH | low | low | low | |
| 4 | 192536 [2-month plot]
Pampierstad - at Vaal-Harts Weir on Hartsrivier |
|
2012-03-12 | 141 | - | - | - | - | HIGH | low | low | low |
| 4 | 192536 | 2012-04-10 | 89 | - | - | - | - | HIGH | low | low | low | |
| 4 | 192536 | 2012-04-30 | 99 | - | - | - | - | HIGH | low | low | low | |
 |
 |