| № | 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 | 90849 [2-month plot]
Kroonstad - at R76 Road Bridge on Vals River (Old Barend Wessel) |
|
2014-11-17 | 2420 | - | - | 7.9 | - | HIGH | Med | HIGH | Med |
| 1 | 90849 | 2014-12-02 | 2420 | - | - | 8.4 | - | HIGH | Med | HIGH | Med | |
| 2 | 182718 [2-month plot]
Skoonspruit D/S from Orkney Sewage Works |
|
2014-11-05 | 2420 | - | - | 7.6 | - | HIGH | Med | HIGH | Med |
| 2 | 182718 | 2014-11-12 | 241960 | - | 7 | 7.8 | - | HIGH | HIGH | HIGH | HIGH | |
| 2 | 182718 | 2014-12-03 | 1624 | - | 10 | 7.7 | - | HIGH | low | HIGH | Med | |
| 2 | 182718 | 2014-12-17 | 1733 | - | 9 | 7.8 | - | HIGH | low | HIGH | Med | |
| 2 | 182718 | 2014-12-18 | 727 | - | - | 7.7 | - | HIGH | low | HIGH | low | |
| 3 | 188130 [2-month plot]
Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502 |
|
2014-11-05 | 479 | - | - | 8.6 | - | HIGH | low | HIGH | low |
| 3 | 188130 | 2014-11-12 | 241960 | - | 25 | 7.5 | - | HIGH | HIGH | HIGH | HIGH | |
| 3 | 188130 | 2014-12-03 | 1201 | - | 15 | 7.4 | - | HIGH | low | HIGH | Med | |
| 3 | 188130 | 2014-12-17 | 1300 | - | 39 | 7.7 | - | HIGH | low | HIGH | Med | |
| 3 | 188130 | 2014-12-18 | 1300 | - | - | 7.6 | - | HIGH | low | HIGH | Med | |
| 4 | 188131 [2-month plot]
Koekemoerspruit at Buffelsfontein Bridge |
|
2014-11-12 | 241960 | - | 15 | 7.6 | - | HIGH | HIGH | HIGH | HIGH |
| 4 | 188131 | 2014-12-03 | 8820 | - | 14 | 7.6 | - | HIGH | Med | HIGH | HIGH | |
| 4 | 188131 | 2014-12-17 | 8330 | - | 17 | 7.9 | - | HIGH | Med | HIGH | HIGH | |
| 5 | 188132 [2-month plot]
Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier |
|
2014-11-12 | 16 | - | 28 | 9.0 | - | HIGH | low | low | low |
| 5 | 188132 | 2014-11-14 | 192 | - | - | 9.1 | - | HIGH | low | low | low | |
| 5 | 188132 | 2014-12-03 | 61 | - | 20 | 8.8 | - | HIGH | low | low | low | |
| 5 | 188132 | 2014-12-05 | 32 | - | - | 8.5 | - | HIGH | low | low | low | |
| 5 | 188132 | 2014-12-17 | 39 | - | 30 | - | 0.0 | HIGH | low | low | low | |
| 6 | 191050 [2-month plot]
Floorsdrift 15 - Hoopstad at R59 Road Bridge on Vetrivier |
|
2014-11-10 | 250 | - | - | 8.4 | - | HIGH | low | Med | low |
| 6 | 191050 | 2014-12-02 | 1414 | - | - | 8.5 | - | HIGH | low | HIGH | Med | |
| 7 | 192624 [2-month plot]
Buffelsfontein 443 IP - at Midvaal Intake |
|
2014-11-12 | 19 | - | 29 | 8.9 | - | HIGH | low | low | low |
| 7 | 192624 | 2014-12-03 | 56 | - | 20 | 8.0 | - | HIGH | low | low | low | |
| 7 | 192624 | 2014-12-17 | 39 | - | 29 | 9.1 | - | HIGH | low | low | low | |
 |
 |