| № | Site [ view Middle 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 | 182718 [2-month plot]
Skoonspruit D/S from Orkney Sewage Works |
|
2008-03-10 | 102 | - | 6 | 7.4 | 24.0 | HIGH | low | low | low |
| 1 | 182718 | 2008-03-25 | 200 | - | 17 | 8.3 | 19.0 | HIGH | low | Med | low | |
| 1 | 182718 | 2008-04-14 | 20 | - | 10 | 8.3 | 18.0 | HIGH | low | low | low | |
| 1 | 182718 | 2008-04-29 | 1350 | - | 0 | 7.8 | 15.0 | HIGH | low | HIGH | Med | |
| 2 | 188130 [2-month plot]
Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502 |
|
2008-03-10 | 613 | - | 19 | 7.6 | 23.0 | HIGH | low | HIGH | low |
| 2 | 188130 | 2008-03-25 | 100 | - | 15 | 8.4 | 19.0 | HIGH | low | low | low | |
| 2 | 188130 | 2008-04-14 | 100 | - | 6 | 7.7 | 16.0 | HIGH | low | low | low | |
| 2 | 188130 | 2008-04-29 | 70 | - | 16 | 8.8 | 16.0 | HIGH | low | low | low | |
| 3 | 188131 [2-month plot]
Koekemoerspruit at Buffelsfontein Bridge |
|
2008-03-10 | 435 | - | 12 | 7.4 | 23.0 | HIGH | low | HIGH | low |
| 3 | 188131 | 2008-03-25 | 300 | - | 8 | 7.8 | 20.0 | HIGH | low | Med | low | |
| 3 | 188131 | 2008-04-14 | 30 | - | 11 | 8.7 | 18.0 | HIGH | low | low | low | |
| 3 | 188131 | 2008-04-29 | 40 | - | 6 | 7.6 | 16.0 | HIGH | low | low | low | |
| 4 | 188132 [2-month plot]
Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier |
|
2008-03-10 | 74 | - | 14 | 8.4 | 24.0 | HIGH | low | low | low |
| 4 | 188132 | 2008-03-25 | 43 | - | 16 | 8.4 | 20.0 | HIGH | low | low | low | |
| 4 | 188132 | 2008-04-14 | 3870 | - | 2 | 7.6 | 16.0 | HIGH | Med | HIGH | Med | |
| 4 | 188132 | 2008-04-29 | 10 | - | 11 | 9.2 | 16.0 | HIGH | low | low | low | |
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