| № | 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)  | 
 
 | 
2020-08-13 | 800 | 820 | - | 7.4 | - | HIGH | low | HIGH | low | 
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2020-07-16 | 87 | 93 | - | 8.0 | - | HIGH | low | low | low | 
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2020-07-09 | 144 | 144 | 1 | 7.9 | - | HIGH | low | low | low | 
| 3 | 90725 | 2020-07-09 | 144 | 144 | 1 | 7.9 | - | HIGH | low | low | low | |
| 3 | 90725 | 2020-07-09 | 144 | 144 | 1 | 7.9 | - | HIGH | low | low | low | |
| 3 | 90725 | 2020-07-09 | 144 | 144 | 1 | 7.9 | - | HIGH | low | low | low | |
| 4 | 189147 [2-month plot]
 Warden 150 M upstream of Dam Wall on Cornelisrivier  | 
 
 | 
2020-08-06 | 10 | 10 | 18 | 8.2 | - | HIGH | low | low | low | 
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