| № | 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)  | 
 
 | 
2013-05-21 | 410 | 590 | - | 7.5 | - | HIGH | low | HIGH | low | 
| 1 | 90616 | 2013-06-25 | 320 | 390 | - | 7.7 | - | HIGH | low | Med | low | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2013-05-28 | 390 | 390 | - | 8.1 | - | HIGH | low | Med | low | 
| 2 | 90697 | 2013-06-25 | 120 | 130 | - | 7.9 | - | HIGH | low | low | low | |
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2013-05-28 | 800 | 1000 | 133 | 7.6 | - | HIGH | low | HIGH | low | 
| 3 | 90725 | 2013-06-24 | 1300 | 2200 | 64 | 7.1 | - | HIGH | low | HIGH | Med | |
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2013-05-28 | 220 | 510 | 3 | 7.8 | - | HIGH | low | Med | low | 
| 4 | 90727 | 2013-06-24 | 250 | 380 | 6 | 7.2 | - | HIGH | low | Med | low | |
| 5 | 189142 [2-month plot]
 Standerton Sakhile downstream of STW and Bucket Dumping Site on Vaal  | 
 
 | 
2013-05-22 | 1600 | 2000 | - | - | - | HIGH | low | HIGH | Med | 
| 6 | 189147 [2-month plot]
 Warden 150 M upstream of Dam Wall on Cornelisrivier  | 
 
 | 
2013-05-08 | 100 | 120 | 25 | 8.0 | - | HIGH | low | low | low | 
| 6 | 189147 | 2013-06-27 | 46 | 73 | 12 | 8.0 | - | HIGH | low | low | low | |
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