| № | 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)  | 
 
 | 
2011-05-04 | 540 | 540 | - | 7.2 | - | HIGH | low | HIGH | low | 
| 1 | 90616 | 2011-06-02 | 2600 | 3200 | - | 7.1 | - | HIGH | Med | HIGH | Med | |
| 1 | 90616 | 2011-06-28 | 1500 | 1800 | - | 7.5 | - | HIGH | low | HIGH | Med | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2011-05-04 | 29 | 49 | - | 7.3 | - | HIGH | low | low | low | 
| 2 | 90697 | 2011-05-24 | 68 | 68 | - | 7.2 | - | HIGH | low | low | low | |
| 2 | 90697 | 2011-06-30 | 24 | 34 | - | 7.8 | - | HIGH | low | low | low | |
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2011-05-24 | 32 | 77 | - | 7.0 | - | HIGH | low | low | low | 
| 3 | 90725 | 2011-06-28 | 33 | 37 | - | 7.4 | - | HIGH | low | low | low | |
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2011-05-24 | 18 | 60 | 14 | 6.3 | - | HIGH | low | low | low | 
| 4 | 90727 | 2011-06-28 | 32 | 59 | 2 | 7.7 | - | HIGH | low | low | low | |
| 5 | 101770 [2-month plot]
 Smidts Drift Outspan 23 Schmidtsdrift at Weir on Vaal River  | 
 
 | 
2011-05-13 | 4 | - | - | - | - | Med | low | low | low | 
| 5 | 101770 | 2011-05-31 | 19 | - | - | - | - | HIGH | low | low | low | |
| 5 | 101770 | 2011-06-10 | 4 | - | - | - | - | Med | low | low | low | |
| 6 | 182718 [2-month plot]
 Skoonspruit D/S from Orkney Sewage Works  | 
 
 | 
2011-05-26 | 17329 | - | 12 | 8.6 | 13.0 | HIGH | Med | HIGH | HIGH | 
| 6 | 182718 | 2011-06-07 | 46110 | - | 7 | 8.2 | 12.0 | HIGH | HIGH | HIGH | HIGH | |
| 7 | 188130 [2-month plot]
 Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502  | 
 
 | 
2011-05-26 | 11199 | - | 12 | 8.6 | 13.0 | HIGH | Med | HIGH | HIGH | 
| 7 | 188130 | 2011-06-07 | 86640 | - | 6 | 8.2 | 12.0 | HIGH | HIGH | HIGH | HIGH | |
| 8 | 188131 [2-month plot]
 Koekemoerspruit at Buffelsfontein Bridge  | 
 
 | 
2011-05-26 | 326 | - | 3 | 8.0 | 14.0 | HIGH | low | Med | low | 
| 8 | 188131 | 2011-05-26 | 326 | - | 3 | 8.0 | 14.0 | HIGH | low | Med | low | |
| 8 | 188131 | 2011-06-07 | 9600 | - | 3 | 7.7 | 12.0 | HIGH | Med | HIGH | HIGH | |
| 9 | 188132 [2-month plot]
 Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier  | 
 
 | 
2011-05-26 | 21 | - | 33 | 9.1 | 14.0 | HIGH | low | low | low | 
| 9 | 188132 | 2011-06-07 | 0 | - | 17 | 9.3 | 11.0 | low | low | low | low | |
| 10 | 188262 [2-month plot]
 Mmabatho - at Road Bridge on Molopo River, D/S of Mafikeng  | 
 
 | 
2011-05-17 | 170 | - | 2 | 8.0 | - | HIGH | low | low | low | 
| 10 | 188262 | 2011-06-06 | 2420 | - | 2 | 8.1 | - | HIGH | Med | HIGH | Med | |
| 10 | 188262 | 2011-06-22 | 2420 | - | 3 | 8.1 | - | HIGH | Med | HIGH | Med | |
| 11 | 188487 [2-month plot]
 Gong Gong D/S Barkly West on Vaal  | 
 
 | 
2011-05-13 | 37 | - | - | - | - | HIGH | low | low | low | 
| 11 | 188487 | 2011-05-31 | 23 | - | - | - | - | HIGH | low | low | low | |
| 11 | 188487 | 2011-06-10 | 6 | - | - | - | - | Med | low | low | low | |
| 12 | 188489 [2-month plot]
 Doornfonteyn Middelplaats D/S Warrenton on Vaal  | 
 
 | 
2011-05-13 | 11 | - | - | - | - | HIGH | low | low | low | 
| 12 | 188489 | 2011-05-31 | 32 | - | - | - | - | HIGH | low | low | low | |
| 12 | 188489 | 2011-06-10 | 16 | - | - | - | - | HIGH | low | low | low | |
| 13 | 189142 [2-month plot]
 Standerton Sakhile downstream of STW and Bucket Dumping Site on Vaal  | 
 
 | 
2011-05-04 | 790 | 840 | - | - | - | HIGH | low | HIGH | low | 
| 13 | 189142 | 2011-06-01 | 3000 | 5600 | - | - | - | HIGH | Med | HIGH | Med | |
| 13 | 189142 | 2011-06-30 | 2500 | 3300 | - | - | - | HIGH | Med | HIGH | Med | |
| 14 | 189147 [2-month plot]
 Warden 150 M upstream of Dam Wall on Cornelisrivier  | 
 
 | 
2011-05-03 | 450 | 450 | - | - | - | HIGH | low | HIGH | low | 
| 14 | 189147 | 2011-06-01 | 230 | 230 | 84 | 7.5 | - | HIGH | low | Med | low | |
| 14 | 189147 | 2011-06-28 | 64 | 64 | - | - | - | HIGH | low | low | low | |
| 15 | 191688 [2-month plot]
 Mmabatho - D/S of Mmabatho WWTW, on Molopo Tributary.  | 
 
 | 
2011-05-17 | 15000 | - | 20 | 7.4 | - | HIGH | Med | HIGH | HIGH | 
| 15 | 191688 | 2011-06-06 | 2420 | - | 1 | 7.7 | - | HIGH | Med | HIGH | Med | |
| 15 | 191688 | 2011-06-22 | 2420 | - | 2 | 7.5 | - | HIGH | Med | HIGH | Med | |
| 16 | 191693 [2-month plot]
 - Soweto Eldoradopark - at Road Bridge on Klipspruit  | 
 
 | 
2011-06-09 | 9700 | - | - | - | - | HIGH | Med | HIGH | HIGH | 
| 17 | 191696 [2-month plot]
 Sia 20 - Eldorado Park Goudkoppie - at Goudkoppie WWTW, near Power Park  | 
 
 | 
2011-06-09 | 0 | - | - | - | - | low | low | low | low | 
| 18 | 191876 [2-month plot]
 Roodepoort Bothasfontein 408 JR - at Florida Lake Outlet  | 
 
 | 
2011-06-09 | 1500 | - | - | - | - | HIGH | low | HIGH | Med | 
| 19 | 192536 [2-month plot]
 Pampierstad - at Vaal-Harts Weir on Hartsrivier  | 
 
 | 
2011-05-13 | 20 | - | - | - | - | HIGH | low | low | low | 
| 19 | 192536 | 2011-05-31 | 46 | - | - | - | - | HIGH | low | low | low | |
| 19 | 192536 | 2011-06-10 | 35 | - | - | - | - | HIGH | low | low | low | |
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