| № | 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 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2022-09-05 | 852 | - | - | - | - | HIGH | low | HIGH | low | 
| 1 | 90697 | 2022-09-19 | 323 | - | - | - | - | HIGH | low | Med | low | |
| 1 | 90697 | 2022-10-03 | 495 | - | - | - | - | HIGH | low | HIGH | low | |
| 1 | 90697 | 2022-10-17 | 391 | - | - | - | - | HIGH | low | Med | low | |
| 1 | 90697 | 2022-10-31 | 839 | - | - | - | - | HIGH | low | HIGH | low | |
| 2 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2022-09-05 | 52 | - | - | - | - | HIGH | low | low | low | 
| 2 | 90725 | 2022-09-19 | 57 | - | - | - | - | HIGH | low | low | low | |
| 2 | 90725 | 2022-10-03 | 88 | - | - | - | - | HIGH | low | low | low | |
| 2 | 90725 | 2022-10-17 | 461 | - | - | - | - | HIGH | low | HIGH | low | |
| 2 | 90725 | 2022-10-31 | 86 | - | - | - | - | HIGH | low | low | low | |
| 3 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2022-09-05 | 920800 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 3 | 90727 | 2022-09-19 | 1013300 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 3 | 90727 | 2022-10-03 | 1119900 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 3 | 90727 | 2022-10-17 | 1553100 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 3 | 90727 | 2022-10-31 | 173290 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 4 | 188262 [2-month plot]
 Mmabatho - at Road Bridge on Molopo River, D/S of Mafikeng  | 
 
 | 
2022-09-07 | 3880 | - | - | - | - | HIGH | Med | HIGH | Med | 
| 4 | 188262 | 2022-10-05 | 3101500 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 4 | 188262 | 2022-10-19 | 2419600 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 5 | 191688 [2-month plot]
 Mmabatho - D/S of Mmabatho WWTW, on Molopo Tributary.  | 
 
 | 
2022-09-07 | 5794000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 5 | 191688 | 2022-10-05 | 4106000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 5 | 191688 | 2022-10-19 | 1565000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 6 | 191693 [2-month plot]
 - Soweto Eldoradopark - at Road Bridge on Klipspruit  | 
 
 | 
2022-09-19 | 770100 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 6 | 191693 | 2022-10-03 | 2419600 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 6 | 191693 | 2022-10-17 | 1110500 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 6 | 191693 | 2022-10-31 | 1299700 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
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