| № | 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 |
|
2012-07-13 | 14 | - | - | - | - | HIGH | low | low | low |
| 1 | 101770 | 2012-07-30 | 1 | - | - | - | - | Med | low | low | low | |
| 1 | 101770 | 2012-08-13 | 5 | - | - | - | - | Med | low | low | low | |
| 1 | 101770 | 2012-08-24 | 10 | - | - | - | - | HIGH | low | low | low | |
| 2 | 188487 [2-month plot]
Gong Gong D/S Barkly West on Vaal |
|
2012-07-13 | 11 | - | - | - | - | HIGH | low | low | low |
| 2 | 188487 | 2012-07-30 | 3 | - | - | - | - | Med | low | low | low | |
| 2 | 188487 | 2012-08-13 | 8 | - | - | - | - | Med | low | low | low | |
| 2 | 188487 | 2012-08-24 | 2420 | - | - | - | - | HIGH | Med | HIGH | Med | |
| 3 | 188489 [2-month plot]
Doornfonteyn Middelplaats D/S Warrenton on Vaal |
|
2012-07-13 | 20 | - | - | - | - | HIGH | low | low | low |
| 3 | 188489 | 2012-07-30 | 3 | - | - | - | - | Med | low | low | low | |
| 3 | 188489 | 2012-08-13 | 9 | - | - | - | - | Med | low | low | low | |
| 3 | 188489 | 2012-08-24 | 74 | - | - | - | - | HIGH | low | low | low | |
| 4 | 192536 [2-month plot]
Pampierstad - at Vaal-Harts Weir on Hartsrivier |
|
2012-07-13 | 770 | - | - | - | - | HIGH | low | HIGH | low |
| 4 | 192536 | 2012-07-30 | 201 | - | - | - | - | HIGH | low | Med | low | |
| 4 | 192536 | 2012-08-13 | 81 | - | - | - | - | HIGH | low | low | low | |
| 4 | 192536 | 2012-08-24 | 9 | - | - | - | - | Med | low | low | low | |
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