| № | 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) |
|
2013-03-15 | 488 | - | - | 7.2 | - | HIGH | low | HIGH | low |
| 1 | 90849 | 2013-04-10 | 980 | - | - | 7.6 | - | HIGH | low | HIGH | low | |
| 2 | 182718 [2-month plot]
Skoonspruit D/S from Orkney Sewage Works |
|
2013-03-13 | 11000 | - | 4 | 7.7 | 24.0 | HIGH | Med | HIGH | HIGH |
| 2 | 182718 | 2013-03-19 | 2420 | - | - | 7.1 | - | HIGH | Med | HIGH | Med | |
| 2 | 182718 | 2013-03-25 | 884 | - | 6 | 7.7 | 24.0 | HIGH | low | HIGH | low | |
| 2 | 182718 | 2013-03-25 | 884 | - | 6 | 7.7 | 24.0 | HIGH | low | HIGH | low | |
| 2 | 182718 | 2013-04-08 | 3448 | - | 4 | 7.8 | 20.0 | HIGH | Med | HIGH | Med | |
| 2 | 182718 | 2013-04-08 | 3448 | - | 4 | 7.8 | 20.0 | HIGH | Med | HIGH | Med | |
| 2 | 182718 | 2013-04-11 | 2420 | - | - | 7.7 | - | HIGH | Med | HIGH | Med | |
| 3 | 188130 [2-month plot]
Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502 |
|
2013-03-13 | 1100000 | - | 51 | 7.9 | 23.0 | HIGH | HIGH | HIGH | HIGH |
| 3 | 188130 | 2013-03-19 | 980 | - | - | 7.5 | - | HIGH | low | HIGH | low | |
| 3 | 188130 | 2013-03-25 | 4160 | - | 10 | 7.9 | 24.0 | HIGH | Med | HIGH | HIGH | |
| 3 | 188130 | 2013-03-25 | 4160 | - | 10 | 7.9 | 24.0 | HIGH | Med | HIGH | HIGH | |
| 3 | 188130 | 2013-04-08 | 4352 | - | 166 | 7.5 | 20.0 | HIGH | Med | HIGH | HIGH | |
| 3 | 188130 | 2013-04-08 | 4352 | - | 166 | 7.5 | 20.0 | HIGH | Med | HIGH | HIGH | |
| 3 | 188130 | 2013-04-11 | 461 | - | - | 7.9 | - | HIGH | low | HIGH | low | |
| 4 | 188131 [2-month plot]
Koekemoerspruit at Buffelsfontein Bridge |
|
2013-03-13 | 261 | - | 32 | 7.7 | 22.0 | HIGH | low | Med | low |
| 4 | 188131 | 2013-03-25 | 816 | - | 10 | 7.7 | 23.0 | HIGH | low | HIGH | low | |
| 4 | 188131 | 2013-03-25 | 816 | - | 10 | 7.7 | 23.0 | HIGH | low | HIGH | low | |
| 4 | 188131 | 2013-04-08 | 61 | - | 9 | 7.6 | 20.0 | HIGH | low | low | low | |
| 4 | 188131 | 2013-04-08 | 61 | - | 9 | 7.6 | 20.0 | HIGH | low | low | low | |
| 5 | 188132 [2-month plot]
Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier |
|
2013-03-13 | 27 | - | 23 | 8.7 | 23.0 | HIGH | low | low | low |
| 5 | 188132 | 2013-03-13 | 866 | - | 23 | 8.7 | 23.0 | HIGH | low | HIGH | low | |
| 5 | 188132 | 2013-03-25 | 60 | - | 14 | 8.5 | 24.0 | HIGH | low | low | low | |
| 5 | 188132 | 2013-03-25 | 60 | - | 14 | 8.5 | 24.0 | HIGH | low | low | low | |
| 5 | 188132 | 2013-04-03 | 30 | - | - | - | - | HIGH | low | low | low | |
| 5 | 188132 | 2013-04-08 | 11 | - | 13 | 8.9 | 21.0 | HIGH | low | low | low | |
| 5 | 188132 | 2013-04-08 | 11 | - | 13 | 8.9 | 21.0 | HIGH | low | low | low | |
| 6 | 191050 [2-month plot]
Floorsdrift 15 - Hoopstad at R59 Road Bridge on Vetrivier |
|
2013-03-18 | 1203 | - | - | 8.6 | - | HIGH | low | HIGH | Med |
| 6 | 191050 | 2013-04-05 | 649 | - | - | 7.7 | - | HIGH | low | HIGH | low | |
| 7 | 192624 [2-month plot]
Buffelsfontein 443 IP - at Midvaal Intake |
|
2013-03-13 | 860 | - | 22 | 8.7 | 24.0 | HIGH | low | HIGH | low |
| 7 | 192624 | 2013-03-25 | 34 | - | 13 | 8.4 | 23.0 | HIGH | low | low | low | |
| 7 | 192624 | 2013-03-25 | 34 | - | 13 | 8.4 | 23.0 | HIGH | low | low | low | |
| 7 | 192624 | 2013-04-08 | 16 | - | 13 | 8.9 | 20.0 | HIGH | low | low | low | |
| 7 | 192624 | 2013-04-08 | 16 | - | 13 | 8.9 | 20.0 | HIGH | low | low | low | |
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