| № | Site [ view Upper 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)  | 
 
 | 
2006-07-27 | 1300 | 1400 | - | 7.5 | - | HIGH | low | HIGH | Med | 
| 1 | 90616 | 2006-08-31 | 0 | - | - | 7.5 | - | low | low | low | low | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2006-07-06 | 70 | - | 3 | - | 12.6 | HIGH | low | low | low | 
| 2 | 90697 | 2006-08-24 | 222 | - | 3 | 7.9 | 17.9 | HIGH | low | Med | low | |
| 2 | 90697 | 2006-08-24 | 130 | 138 | 3 | 7.9 | 17.9 | HIGH | low | low | low | |
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2006-08-10 | 4000 | 4000 | - | 7.4 | - | HIGH | Med | HIGH | HIGH | 
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2006-08-10 | 4 | 4 | - | 7.6 | - | Med | low | low | low | 
| 5 | 187058 [2-month plot]
 Dam at 42ND Hill Informal Settlement  | 
 
 | 
2006-07-18 | 8 | - | 10 | 7.9 | 14.6 | Med | low | low | low | 
| 5 | 187058 | 2006-08-24 | 120 | - | 5 | 8.1 | 18.1 | HIGH | low | low | low | |
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