| № | 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 | 90616 [2-month plot]
Rietspruit at Kaalplaats (Rw RV2) |
|
2019-09-05 | 16000 | 37000 | - | 7.4 | - | HIGH | Med | HIGH | HIGH |
| 1 | 90616 | 2019-10-03 | 43000 | 44000 | - | 7.4 | - | HIGH | HIGH | HIGH | HIGH | |
| 2 | 90697 [2-month plot]
(B8) Nigel R51 Road Bridge to Balfour |
|
2019-09-11 | 33000 | 57000 | - | 7.8 | - | HIGH | HIGH | HIGH | HIGH |
| 2 | 90697 | 2019-10-04 | 8800 | 15000 | - | 8.1 | - | HIGH | Med | HIGH | HIGH | |
| 2 | 90697 | 2019-10-17 | 220 | 420 | - | 8.2 | - | HIGH | low | Med | low | |
| 3 | 90725 [2-month plot]
Klip River at R41 Witpoortjie U/S Durban Deep Mine |
|
2019-09-11 | 1350000 | 1350000 | 84 | 7.2 | - | HIGH | HIGH | HIGH | HIGH |
| 3 | 90725 | 2019-10-29 | 2000000 | 2800000 | 20 | 7.5 | - | HIGH | HIGH | HIGH | HIGH | |
| 4 | 90727 [2-month plot]
At Golden Highway Olifantsvlei van Wyk on Kliprivier |
|
2019-09-11 | 9800 | 10300 | 5 | 7.4 | - | HIGH | Med | HIGH | HIGH |
| 4 | 90727 | 2019-10-08 | 280000 | 360000 | 10 | 7.7 | - | HIGH | HIGH | HIGH | HIGH | |
| 4 | 90727 | 2019-10-29 | 170000 | 210000 | 9 | 7.7 | - | HIGH | HIGH | HIGH | HIGH | |
| 5 | 189147 [2-month plot]
Warden 150 M upstream of Dam Wall on Cornelisrivier |
|
2019-09-13 | 1380 | 1380 | 5 | 7.6 | - | HIGH | low | HIGH | Med |
| 5 | 189147 | 2019-10-03 | 78 | 78 | 8 | 7.9 | - | HIGH | low | low | low | |
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