| № | 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)  | 
 
 | 
2006-10-07 | 2700 | 3300 | - | - | - | HIGH | Med | HIGH | Med | 
| 1 | 90616 | 2006-10-10 | 13000 | - | - | 7.6 | - | HIGH | Med | HIGH | HIGH | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2006-09-13 | 62 | 68 | - | 8.3 | - | HIGH | low | low | low | 
| 2 | 90697 | 2006-10-12 | 60 | 60 | - | 8.1 | - | HIGH | low | low | low | |
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2006-09-14 | 10 | 12 | - | 8.2 | - | HIGH | low | low | low | 
| 3 | 90725 | 2006-10-10 | 73 | 78 | - | 7.6 | - | HIGH | low | low | low | |
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2006-09-14 | 4 | 14 | - | 8.5 | - | Med | low | low | low | 
| 4 | 90727 | 2006-10-10 | 24 | 35 | - | 7.5 | - | HIGH | low | low | low | |
| 5 | 187058 [2-month plot]
 Dam at 42ND Hill Informal Settlement  | 
 
 | 
2006-09-19 | 13 | - | 9 | 8.2 | 18.7 | HIGH | low | low | low | 
| 6 | 188487 [2-month plot]
 Gong Gong D/S Barkly West on Vaal  | 
 
 | 
2006-09-05 | 52 | - | - | - | - | HIGH | low | low | low | 
| 6 | 188487 | 2006-09-21 | 7 | - | - | - | - | Med | low | low | low | |
| 7 | 188488 [2-month plot]
 Brent Park Rondavel Noord 1475 - at Moakeng Weir D/S Kroonstad on Valsrivier  | 
 
 | 
2006-09-05 | 225 | - | - | - | - | HIGH | low | Med | low | 
| 7 | 188488 | 2006-09-21 | 201 | - | - | - | - | HIGH | low | Med | low | |
| 8 | 188489 [2-month plot]
 Doornfonteyn Middelplaats D/S Warrenton on Vaal  | 
 
 | 
2006-09-05 | 225 | - | - | - | - | HIGH | low | Med | low | 
| 8 | 188489 | 2006-09-21 | 201 | - | - | - | - | HIGH | low | Med | low | |
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