| № | 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)  | 
 
 | 
2013-01-08 | 900 | 1700 | - | 7.8 | - | HIGH | low | HIGH | low | 
| 1 | 90616 | 2013-02-05 | 15000 | 41000 | - | 7.6 | - | HIGH | Med | HIGH | HIGH | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2013-01-09 | 210 | 330 | - | 8.0 | - | HIGH | low | Med | low | 
| 2 | 90697 | 2013-01-22 | 210 | 340 | - | 8.3 | - | HIGH | low | Med | low | |
| 2 | 90697 | 2013-02-27 | 90 | 140 | - | 7.4 | - | HIGH | low | low | low | |
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2013-01-08 | 220 | 440 | 280 | 7.8 | - | HIGH | low | Med | low | 
| 3 | 90725 | 2013-01-29 | 3000 | 4700 | 56 | 7.2 | - | HIGH | Med | HIGH | Med | |
| 3 | 90725 | 2013-02-26 | 110 | 110 | 400 | 7.1 | - | HIGH | low | low | low | |
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2013-01-08 | 400 | 400 | 118 | 7.9 | - | HIGH | low | HIGH | low | 
| 4 | 90727 | 2013-01-29 | 3600 | 6200 | 16 | 7.2 | - | HIGH | Med | HIGH | Med | |
| 4 | 90727 | 2013-02-26 | 70 | 100 | 11 | 7.8 | - | HIGH | low | low | low | |
| 5 | 101770 [2-month plot]
 Smidts Drift Outspan 23 Schmidtsdrift at Weir on Vaal River  | 
 
 | 
2013-01-29 | 99 | - | - | - | - | HIGH | low | low | low | 
| 5 | 101770 | 2013-02-15 | 91 | - | - | - | - | HIGH | low | low | low | |
| 6 | 182718 [2-month plot]
 Skoonspruit D/S from Orkney Sewage Works  | 
 
 | 
2013-02-25 | 638 | - | 5 | 7.8 | 25.0 | HIGH | low | HIGH | low | 
| 7 | 188130 [2-month plot]
 Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502  | 
 
 | 
2013-02-25 | 7300 | - | 24 | 8.2 | 26.0 | HIGH | Med | HIGH | HIGH | 
| 8 | 188131 [2-month plot]
 Koekemoerspruit at Buffelsfontein Bridge  | 
 
 | 
2013-02-25 | 179 | - | 6 | 7.4 | 25.0 | HIGH | low | low | low | 
| 9 | 188132 [2-month plot]
 Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier  | 
 
 | 
2013-02-25 | 31 | - | 17 | 9.2 | 26.0 | HIGH | low | low | low | 
| 10 | 188487 [2-month plot]
 Gong Gong D/S Barkly West on Vaal  | 
 
 | 
2013-01-29 | 12 | - | - | - | - | HIGH | low | low | low | 
| 10 | 188487 | 2013-02-15 | 286 | - | - | - | - | HIGH | low | Med | low | |
| 11 | 188489 [2-month plot]
 Doornfonteyn Middelplaats D/S Warrenton on Vaal  | 
 
 | 
2013-01-29 | 166 | - | - | - | - | HIGH | low | low | low | 
| 11 | 188489 | 2013-02-15 | 13 | - | - | - | - | HIGH | low | low | low | |
| 12 | 189142 [2-month plot]
 Standerton Sakhile downstream of STW and Bucket Dumping Site on Vaal  | 
 
 | 
2013-01-07 | 2300 | 4000 | - | - | - | HIGH | Med | HIGH | Med | 
| 12 | 189142 | 2013-01-30 | 240 | 540 | - | - | - | HIGH | low | Med | low | |
| 12 | 189142 | 2013-02-27 | 30 | 30 | - | - | - | HIGH | low | low | low | |
| 13 | 189147 [2-month plot]
 Warden 150 M upstream of Dam Wall on Cornelisrivier  | 
 
 | 
2013-01-09 | 620 | 620 | 98 | 7.0 | - | HIGH | low | HIGH | low | 
| 13 | 189147 | 2013-02-06 | 260 | 530 | 103 | 7.5 | - | HIGH | low | Med | low | |
| 14 | 191693 [2-month plot]
 - Soweto Eldoradopark - at Road Bridge on Klipspruit  | 
 
 | 
2013-02-14 | 2400000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 15 | 191696 [2-month plot]
 Sia 20 - Eldorado Park Goudkoppie - at Goudkoppie WWTW, near Power Park  | 
 
 | 
2013-01-24 | 15000 | - | - | - | - | HIGH | Med | HIGH | HIGH | 
| 15 | 191696 | 2013-02-14 | 1400 | - | - | - | - | HIGH | low | HIGH | Med | |
| 16 | 191876 [2-month plot]
 Roodepoort Bothasfontein 408 JR - at Florida Lake Outlet  | 
 
 | 
2013-01-24 | 49 | - | - | - | - | HIGH | low | low | low | 
| 16 | 191876 | 2013-02-14 | 420 | - | - | - | - | HIGH | low | HIGH | low | |
| 17 | 192536 [2-month plot]
 Pampierstad - at Vaal-Harts Weir on Hartsrivier  | 
 
 | 
2013-01-29 | 125 | - | - | - | - | HIGH | low | low | low | 
| 17 | 192536 | 2013-02-15 | 397 | - | - | - | - | HIGH | low | Med | low | |
| 18 | 192624 [2-month plot]
 Buffelsfontein 443 IP - at Midvaal Intake  | 
 
 | 
2013-02-25 | 59 | - | 18 | 9.3 | 25.0 | HIGH | low | low | low | 
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