| № | 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)  | 
 
 | 
2010-01-14 | 4200 | 4400 | - | - | - | HIGH | Med | HIGH | HIGH | 
| 1 | 90616 | 2010-02-04 | 110000 | 130000 | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 1 | 90616 | 2010-02-24 | 10000 | 10000 | - | 7.5 | - | HIGH | Med | HIGH | HIGH | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2010-01-13 | 46 | 53 | - | 7.4 | - | HIGH | low | low | low | 
| 2 | 90697 | 2010-01-13 | 320 | - | - | 7.4 | - | HIGH | low | Med | low | |
| 2 | 90697 | 2010-02-02 | 86 | 86 | - | 6.7 | - | HIGH | low | low | low | |
| 2 | 90697 | 2010-02-26 | 110 | 130 | - | 7.7 | - | HIGH | low | low | low | |
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2010-02-09 | 270 | 270 | - | 7.4 | - | HIGH | low | Med | low | 
| 3 | 90725 | 2010-02-26 | 180 | 250 | - | - | - | HIGH | low | low | low | |
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2010-02-09 | 7800 | 7800 | - | 7.4 | - | HIGH | Med | HIGH | HIGH | 
| 4 | 90727 | 2010-02-26 | 1900 | 2300 | - | - | - | HIGH | low | HIGH | Med | |
| 5 | 182718 [2-month plot]
 Skoonspruit D/S from Orkney Sewage Works  | 
 
 | 
2010-01-05 | 73000 | - | 31 | 7.7 | 21.0 | HIGH | HIGH | HIGH | HIGH | 
| 5 | 182718 | 2010-01-18 | 17000 | - | 58 | 7.9 | 22.0 | HIGH | Med | HIGH | HIGH | |
| 5 | 182718 | 2010-02-02 | 225 | - | 44 | 7.6 | 22.0 | HIGH | low | Med | low | |
| 5 | 182718 | 2010-02-15 | 198600 | - | 14 | 7.7 | 23.0 | HIGH | HIGH | HIGH | HIGH | |
| 6 | 188130 [2-month plot]
 Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502  | 
 
 | 
2010-01-05 | 34000 | - | 519 | 7.5 | 21.0 | HIGH | HIGH | HIGH | HIGH | 
| 6 | 188130 | 2010-01-18 | 15000 | - | 58 | 7.9 | 22.0 | HIGH | Med | HIGH | HIGH | |
| 6 | 188130 | 2010-02-02 | 58000 | - | 12 | 7.7 | 22.0 | HIGH | HIGH | HIGH | HIGH | |
| 6 | 188130 | 2010-02-15 | 242000 | - | 13 | 7.8 | 23.0 | HIGH | HIGH | HIGH | HIGH | |
| 7 | 188131 [2-month plot]
 Koekemoerspruit at Buffelsfontein Bridge  | 
 
 | 
2010-01-05 | 201 | - | 4 | 7.4 | 21.0 | HIGH | low | Med | low | 
| 7 | 188131 | 2010-01-18 | 82000 | - | 78 | 7.3 | 22.0 | HIGH | HIGH | HIGH | HIGH | |
| 7 | 188131 | 2010-02-02 | 65 | - | 2 | 7.7 | 22.0 | HIGH | low | low | low | |
| 7 | 188131 | 2010-02-15 | 242000 | - | 13 | 7.9 | 23.0 | HIGH | HIGH | HIGH | HIGH | |
| 8 | 188132 [2-month plot]
 Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier  | 
 
 | 
2010-01-05 | 179 | - | 32 | 7.9 | 22.0 | HIGH | low | low | low | 
| 8 | 188132 | 2010-01-18 | 400 | - | 72 | 7.8 | 22.0 | HIGH | low | HIGH | low | |
| 8 | 188132 | 2010-02-02 | 461 | - | 156 | 7.7 | 22.0 | HIGH | low | HIGH | low | |
| 8 | 188132 | 2010-02-15 | 61 | - | 56 | 7.7 | 23.0 | HIGH | low | low | low | |
| 8 | 188132 | 2010-02-25 | - | 500 | - | 8.0 | - | HIGH | low | HIGH | low | |
| 9 | 188487 [2-month plot]
 Gong Gong D/S Barkly West on Vaal  | 
 
 | 
2010-01-25 | 10 | - | - | - | - | HIGH | low | low | low | 
| 9 | 188487 | 2010-01-25 | 10 | - | - | - | - | HIGH | low | low | low | |
| 10 | 188489 [2-month plot]
 Doornfonteyn Middelplaats D/S Warrenton on Vaal  | 
 
 | 
2010-01-25 | 10 | - | - | - | - | HIGH | low | low | low | 
| 10 | 188489 | 2010-01-25 | 3 | - | - | - | - | Med | low | low | low | |
| 11 | 191693 [2-month plot]
 - Soweto Eldoradopark - at Road Bridge on Klipspruit  | 
 
 | 
2010-01-14 | 16000 | - | - | - | - | HIGH | Med | HIGH | HIGH | 
| 11 | 191693 | 2010-02-12 | 31000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 12 | 191696 [2-month plot]
 Sia 20 - Eldorado Park Goudkoppie - at Goudkoppie WWTW, near Power Park  | 
 
 | 
2010-01-14 | 360 | - | - | - | - | HIGH | low | Med | low | 
| 12 | 191696 | 2010-02-12 | 740 | - | - | - | - | HIGH | low | HIGH | low | |
| 13 | 191876 [2-month plot]
 Roodepoort Bothasfontein 408 JR - at Florida Lake Outlet  | 
 
 | 
2010-01-14 | 110 | - | - | - | - | HIGH | low | low | low | 
| 13 | 191876 | 2010-02-12 | 160 | - | - | - | - | HIGH | low | low | low | |
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