| № | 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)  | 
 
 | 
2018-05-23 | 5580 | 6200 | - | 7.5 | - | HIGH | Med | HIGH | HIGH | 
| 1 | 90616 | 2018-06-19 | 110000 | 110000 | - | 7.2 | - | HIGH | HIGH | HIGH | HIGH | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2018-05-16 | 120 | 120 | - | 7.6 | - | HIGH | low | low | low | 
| 2 | 90697 | 2018-06-13 | 2300 | 2300 | - | 7.4 | - | HIGH | Med | HIGH | Med | |
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2018-05-16 | 3600 | 4000 | 14 | 7.1 | - | HIGH | Med | HIGH | Med | 
| 3 | 90725 | 2018-06-12 | 37 | 37 | 1 | 6.8 | - | HIGH | low | low | low | |
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2018-05-16 | 2600 | 2600 | 3 | 7.7 | - | HIGH | Med | HIGH | Med | 
| 4 | 90727 | 2018-06-12 | 130 | 130 | 2 | 6.2 | - | HIGH | low | low | low | |
| 5 | 188262 [2-month plot]
 Mmabatho - at Road Bridge on Molopo River, D/S of Mafikeng  | 
 
 | 
2018-05-22 | 8330 | - | - | - | - | HIGH | Med | HIGH | HIGH | 
| 5 | 188262 | 2018-06-05 | 2910 | - | - | - | - | HIGH | Med | HIGH | Med | |
| 6 | 189142 [2-month plot]
 Standerton Sakhile downstream of STW and Bucket Dumping Site on Vaal  | 
 
 | 
2018-06-11 | 300000 | 300000 | 25 | 6.7 | - | HIGH | HIGH | HIGH | HIGH | 
| 7 | 191688 [2-month plot]
 Mmabatho - D/S of Mmabatho WWTW, on Molopo Tributary.  | 
 
 | 
2018-05-22 | 1859600 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 7 | 191688 | 2018-06-05 | 2419600 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 8 | 191693 [2-month plot]
 - Soweto Eldoradopark - at Road Bridge on Klipspruit  | 
 
 | 
2018-05-10 | 240000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 8 | 191693 | 2018-06-14 | 240000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 9 | 191696 [2-month plot]
 Sia 20 - Eldorado Park Goudkoppie - at Goudkoppie WWTW, near Power Park  | 
 
 | 
2018-05-10 | 39000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 9 | 191696 | 2018-06-14 | 58000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 10 | 191876 [2-month plot]
 Roodepoort Bothasfontein 408 JR - at Florida Lake Outlet  | 
 
 | 
2018-05-10 | 85 | - | - | - | 23.2 | HIGH | low | low | low | 
| 10 | 191876 | 2018-06-14 | 0 | - | - | - | 22.9 | low | low | low | low | |
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