| № | 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)  | 
 
 | 
2010-09-08 | - | 75 | - | 7.2 | - | HIGH | low | low | low | 
| 1 | 90616 | 2010-10-07 | - | 1500 | - | 7.9 | - | HIGH | low | HIGH | Med | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2010-09-07 | 79 | 82 | - | 7.7 | - | HIGH | low | low | low | 
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2010-09-16 | 490 | 490 | - | - | - | HIGH | low | HIGH | low | 
| 3 | 90725 | 2010-10-06 | 780 | 820 | - | 7.3 | - | HIGH | low | HIGH | low | |
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2010-09-16 | 6300 | 7800 | - | - | - | HIGH | Med | HIGH | HIGH | 
| 4 | 90727 | 2010-10-06 | 3 | 3 | - | 7.9 | - | Med | low | low | low | |
| 5 | 182718 [2-month plot]
 Skoonspruit D/S from Orkney Sewage Works  | 
 
 | 
2010-09-13 | 308 | - | 5 | 7.8 | 24.0 | HIGH | low | Med | low | 
| 5 | 182718 | 2010-09-27 | 6830 | - | 4 | 8.0 | 23.0 | HIGH | Med | HIGH | HIGH | |
| 5 | 182718 | 2010-10-11 | 1553 | - | 3 | 8.0 | 20.0 | HIGH | low | HIGH | Med | |
| 5 | 182718 | 2010-10-26 | 7300 | - | 3 | 7.9 | 19.0 | HIGH | Med | HIGH | HIGH | |
| 6 | 188130 [2-month plot]
 Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502  | 
 
 | 
2010-09-13 | 649 | - | 11 | 8.9 | 24.0 | HIGH | low | HIGH | low | 
| 6 | 188130 | 2010-09-27 | 13760 | - | 9 | 8.0 | 22.0 | HIGH | Med | HIGH | HIGH | |
| 6 | 188130 | 2010-10-11 | 2130 | - | 4 | 7.9 | 20.0 | HIGH | Med | HIGH | Med | |
| 6 | 188130 | 2010-10-26 | 4640 | - | 10 | 7.9 | 19.0 | HIGH | Med | HIGH | HIGH | |
| 7 | 188131 [2-month plot]
 Koekemoerspruit at Buffelsfontein Bridge  | 
 
 | 
2010-09-13 | 43 | - | 18 | 9.3 | 24.0 | HIGH | low | low | low | 
| 7 | 188131 | 2010-09-27 | 45 | - | 20 | 9.2 | 22.0 | HIGH | low | low | low | |
| 7 | 188131 | 2010-10-11 | 105 | - | 19 | 8.9 | 20.0 | HIGH | low | low | low | |
| 7 | 188131 | 2010-10-26 | 81 | - | 1 | 7.8 | 20.0 | HIGH | low | low | low | |
| 8 | 188132 [2-month plot]
 Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier  | 
 
 | 
2010-09-13 | 28 | - | 17 | 9.4 | 23.0 | HIGH | low | low | low | 
| 8 | 188132 | 2010-09-27 | 99 | - | 18 | 9.4 | 23.0 | HIGH | low | low | low | |
| 8 | 188132 | 2010-10-11 | 15 | - | 18 | 9.2 | 21.0 | HIGH | low | low | low | |
| 8 | 188132 | 2010-10-26 | 12010 | - | 18 | 9.2 | 20.0 | HIGH | Med | HIGH | HIGH | |
| 9 | 188487 [2-month plot]
 Gong Gong D/S Barkly West on Vaal  | 
 
 | 
2010-10-28 | 2 | - | - | - | - | Med | low | low | low | 
| 10 | 188489 [2-month plot]
 Doornfonteyn Middelplaats D/S Warrenton on Vaal  | 
 
 | 
2010-10-28 | 6 | - | - | - | - | Med | low | low | low | 
| 11 | 191693 [2-month plot]
 - Soweto Eldoradopark - at Road Bridge on Klipspruit  | 
 
 | 
2010-09-09 | 710 | - | - | - | - | HIGH | low | HIGH | low | 
| 11 | 191693 | 2010-10-14 | 290 | - | - | - | - | HIGH | low | Med | low | |
| 12 | 191696 [2-month plot]
 Sia 20 - Eldorado Park Goudkoppie - at Goudkoppie WWTW, near Power Park  | 
 
 | 
2010-09-09 | 82000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 12 | 191696 | 2010-10-14 | 240000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 13 | 191876 [2-month plot]
 Roodepoort Bothasfontein 408 JR - at Florida Lake Outlet  | 
 
 | 
2010-09-09 | 54 | - | - | - | - | HIGH | low | low | low | 
| 13 | 191876 | 2010-10-14 | 370 | - | - | - | - | HIGH | low | Med | low | |
| 13 | 191876 | 2010-10-14 | 370 | - | - | - | - | HIGH | low | Med | low | |
![]()  | 
![]()  |