| № | Site [ view 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 | 90697 [2-month plot]
(B8) Nigel R51 Road Bridge to Balfour |
|
2021-09-14 | 368 | - | - | - | - | HIGH | low | Med | low |
| 1 | 90697 | 2021-09-28 | 156 | - | - | - | - | HIGH | low | low | low | |
| 1 | 90697 | 2021-10-12 | 398 | - | - | - | - | HIGH | low | Med | low | |
| 1 | 90697 | 2021-10-26 | 1734 | - | - | - | - | HIGH | low | HIGH | Med | |
| 2 | 90725 [2-month plot]
Klip River at R41 Witpoortjie U/S Durban Deep Mine |
|
2021-09-14 | 0 | - | - | - | - | low | low | low | low |
| 2 | 90725 | 2021-09-28 | 47 | - | - | - | - | HIGH | low | low | low | |
| 2 | 90725 | 2021-10-12 | 56 | - | 5 | 7.7 | - | HIGH | low | low | low | |
| 2 | 90725 | 2021-10-26 | 70 | - | - | - | - | HIGH | low | low | low | |
| 3 | 90727 [2-month plot]
At Golden Highway Olifantsvlei van Wyk on Kliprivier |
|
2021-09-14 | 344800 | - | - | - | - | HIGH | HIGH | HIGH | HIGH |
| 3 | 90727 | 2021-09-28 | 410600 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 3 | 90727 | 2021-10-12 | 297750 | - | 13 | 7.4 | - | HIGH | HIGH | HIGH | HIGH | |
| 3 | 90727 | 2021-10-26 | 290900 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
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