| № | 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 |
|
2010-09-13 | 308 | - | 5 | 7.8 | 24.0 | HIGH | low | Med | low |
| 1 | 182718 | 2010-09-27 | 6830 | - | 4 | 8.0 | 23.0 | HIGH | Med | HIGH | HIGH | |
| 1 | 182718 | 2010-10-11 | 1553 | - | 3 | 8.0 | 20.0 | HIGH | low | HIGH | Med | |
| 1 | 182718 | 2010-10-26 | 7300 | - | 3 | 7.9 | 19.0 | HIGH | Med | HIGH | HIGH | |
| 2 | 188130 [2-month plot]
Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502 |
|
2010-09-13 | 649 | - | 11 | 8.9 | 24.0 | HIGH | low | HIGH | low |
| 2 | 188130 | 2010-09-27 | 13760 | - | 9 | 8.0 | 22.0 | HIGH | Med | HIGH | HIGH | |
| 2 | 188130 | 2010-10-11 | 2130 | - | 4 | 7.9 | 20.0 | HIGH | Med | HIGH | Med | |
| 2 | 188130 | 2010-10-26 | 4640 | - | 10 | 7.9 | 19.0 | HIGH | Med | HIGH | HIGH | |
| 3 | 188131 [2-month plot]
Koekemoerspruit at Buffelsfontein Bridge |
|
2010-09-13 | 43 | - | 18 | 9.3 | 24.0 | HIGH | low | low | low |
| 3 | 188131 | 2010-09-27 | 45 | - | 20 | 9.2 | 22.0 | HIGH | low | low | low | |
| 3 | 188131 | 2010-10-11 | 105 | - | 19 | 8.9 | 20.0 | HIGH | low | low | low | |
| 3 | 188131 | 2010-10-26 | 81 | - | 1 | 7.8 | 20.0 | HIGH | low | low | low | |
| 4 | 188132 [2-month plot]
Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier |
|
2010-09-13 | 28 | - | 17 | 9.4 | 23.0 | HIGH | low | low | low |
| 4 | 188132 | 2010-09-27 | 99 | - | 18 | 9.4 | 23.0 | HIGH | low | low | low | |
| 4 | 188132 | 2010-10-11 | 15 | - | 18 | 9.2 | 21.0 | HIGH | low | low | low | |
| 4 | 188132 | 2010-10-26 | 12010 | - | 18 | 9.2 | 20.0 | HIGH | Med | HIGH | HIGH | |
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