| № | 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) |
|
2006-03-15 | 60000 | - | - | 7.4 | - | HIGH | HIGH | HIGH | HIGH |
| 1 | 90616 | 2006-04-12 | 0 | - | - | 7.2 | - | low | low | low | low | |
| 2 | 90725 [2-month plot]
Klip River at R41 Witpoortjie U/S Durban Deep Mine |
|
2006-03-09 | 170 | 210 | - | - | - | HIGH | low | low | low |
| 2 | 90725 | 2006-04-12 | 130 | 150 | - | 6.4 | - | HIGH | low | low | low | |
| 3 | 90727 [2-month plot]
At Golden Highway Olifantsvlei van Wyk on Kliprivier |
|
2006-03-09 | 80 | 180 | - | - | - | HIGH | low | low | low |
| 3 | 90727 | 2006-04-12 | 4200 | 4200 | - | 7.6 | - | HIGH | Med | HIGH | HIGH | |
| 4 | 182718 [2-month plot]
Skoonspruit D/S from Orkney Sewage Works |
|
2006-03-08 | 310 | - | 42 | 7.7 | 23.0 | HIGH | low | Med | low |
| 4 | 182718 | 2006-03-23 | 19200 | - | 68 | 8.1 | 21.0 | HIGH | Med | HIGH | HIGH | |
| 4 | 182718 | 2006-04-06 | 10960 | - | 41 | 8.2 | 22.0 | HIGH | Med | HIGH | HIGH | |
| 4 | 182718 | 2006-04-21 | 2400 | - | 64 | 8.1 | 20.0 | HIGH | Med | HIGH | Med | |
| 5 | 188130 [2-month plot]
Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502 |
|
2006-03-08 | 2480 | - | 22 | 7.9 | 23.0 | HIGH | Med | HIGH | Med |
| 5 | 188130 | 2006-03-23 | 57900 | - | 51 | 8.0 | 21.0 | HIGH | HIGH | HIGH | HIGH | |
| 5 | 188130 | 2006-04-06 | 940 | - | 20 | 8.2 | 23.0 | HIGH | low | HIGH | low | |
| 5 | 188130 | 2006-04-21 | 2860 | - | 22 | 8.3 | 20.0 | HIGH | Med | HIGH | Med | |
| 6 | 188131 [2-month plot]
Koekemoerspruit at Buffelsfontein Bridge |
|
2006-03-08 | 230 | - | 7 | 7.6 | 23.0 | HIGH | low | Med | low |
| 6 | 188131 | 2006-03-23 | 8000 | - | 2 | 7.5 | 21.0 | HIGH | Med | HIGH | HIGH | |
| 6 | 188131 | 2006-04-06 | 1980 | - | 4 | 7.8 | 22.0 | HIGH | low | HIGH | Med | |
| 6 | 188131 | 2006-04-21 | 4960 | - | 4 | 7.9 | 21.0 | HIGH | Med | HIGH | HIGH | |
| 7 | 188132 [2-month plot]
Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier |
|
2006-03-08 | 330 | - | 223 | 8.0 | 23.0 | HIGH | low | Med | low |
| 7 | 188132 | 2006-03-23 | 1120 | - | 125 | 8.1 | 22.0 | HIGH | low | HIGH | Med | |
| 7 | 188132 | 2006-04-06 | 340 | - | 78 | 8.1 | 22.0 | HIGH | low | Med | low | |
| 7 | 188132 | 2006-04-21 | 60 | - | 8 | 8.2 | 20.0 | HIGH | low | low | low | |
 |
 |