| № | 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)  | 
 
 | 
2013-03-05 | 3500 | 4800 | - | 7.3 | - | HIGH | Med | HIGH | Med | 
| 1 | 90616 | 2013-04-03 | 21000 | 26000 | - | 7.5 | - | HIGH | HIGH | HIGH | HIGH | |
| 1 | 90616 | 2013-04-23 | 12000 | 21000 | - | 7.7 | - | HIGH | Med | HIGH | HIGH | |
| 2 | 90697 [2-month plot]
 (B8) Nigel R51 Road Bridge to Balfour  | 
 
 | 
2013-03-26 | 250 | 270 | - | 8.0 | - | HIGH | low | Med | low | 
| 2 | 90697 | 2013-04-16 | 290 | 440 | - | 8.1 | - | HIGH | low | Med | low | |
| 3 | 90725 [2-month plot]
 Klip River at R41 Witpoortjie U/S Durban Deep Mine  | 
 
 | 
2013-04-03 | 130 | 130 | 450 | 6.9 | - | HIGH | low | low | low | 
| 3 | 90725 | 2013-04-23 | 330 | 330 | 450 | 7.0 | - | HIGH | low | Med | low | |
| 4 | 90727 [2-month plot]
 At Golden Highway Olifantsvlei van Wyk on Kliprivier  | 
 
 | 
2013-04-03 | 130 | 170 | 8 | 7.9 | - | HIGH | low | low | low | 
| 4 | 90727 | 2013-04-23 | 4800 | 6200 | 13 | 7.6 | - | HIGH | Med | HIGH | HIGH | |
| 5 | 90849 [2-month plot]
 Kroonstad - at R76 Road Bridge on Vals River (Old Barend Wessel)  | 
 
 | 
2013-03-15 | 488 | - | - | 7.2 | - | HIGH | low | HIGH | low | 
| 5 | 90849 | 2013-04-10 | 980 | - | - | 7.6 | - | HIGH | low | HIGH | low | |
| 6 | 101770 [2-month plot]
 Smidts Drift Outspan 23 Schmidtsdrift at Weir on Vaal River  | 
 
 | 
2013-03-15 | 39 | - | - | - | - | HIGH | low | low | low | 
| 6 | 101770 | 2013-04-26 | 48 | - | - | - | - | HIGH | low | low | low | |
| 7 | 182718 [2-month plot]
 Skoonspruit D/S from Orkney Sewage Works  | 
 
 | 
2013-03-13 | 11000 | - | 4 | 7.7 | 24.0 | HIGH | Med | HIGH | HIGH | 
| 7 | 182718 | 2013-03-19 | 2420 | - | - | 7.1 | - | HIGH | Med | HIGH | Med | |
| 7 | 182718 | 2013-03-25 | 884 | - | 6 | 7.7 | 24.0 | HIGH | low | HIGH | low | |
| 7 | 182718 | 2013-03-25 | 884 | - | 6 | 7.7 | 24.0 | HIGH | low | HIGH | low | |
| 7 | 182718 | 2013-04-08 | 3448 | - | 4 | 7.8 | 20.0 | HIGH | Med | HIGH | Med | |
| 7 | 182718 | 2013-04-08 | 3448 | - | 4 | 7.8 | 20.0 | HIGH | Med | HIGH | Med | |
| 7 | 182718 | 2013-04-11 | 2420 | - | - | 7.7 | - | HIGH | Med | HIGH | Med | |
| 8 | 188130 [2-month plot]
 Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502  | 
 
 | 
2013-03-13 | 1100000 | - | 51 | 7.9 | 23.0 | HIGH | HIGH | HIGH | HIGH | 
| 8 | 188130 | 2013-03-19 | 980 | - | - | 7.5 | - | HIGH | low | HIGH | low | |
| 8 | 188130 | 2013-03-25 | 4160 | - | 10 | 7.9 | 24.0 | HIGH | Med | HIGH | HIGH | |
| 8 | 188130 | 2013-03-25 | 4160 | - | 10 | 7.9 | 24.0 | HIGH | Med | HIGH | HIGH | |
| 8 | 188130 | 2013-04-08 | 4352 | - | 166 | 7.5 | 20.0 | HIGH | Med | HIGH | HIGH | |
| 8 | 188130 | 2013-04-08 | 4352 | - | 166 | 7.5 | 20.0 | HIGH | Med | HIGH | HIGH | |
| 8 | 188130 | 2013-04-11 | 461 | - | - | 7.9 | - | HIGH | low | HIGH | low | |
| 9 | 188131 [2-month plot]
 Koekemoerspruit at Buffelsfontein Bridge  | 
 
 | 
2013-03-13 | 261 | - | 32 | 7.7 | 22.0 | HIGH | low | Med | low | 
| 9 | 188131 | 2013-03-25 | 816 | - | 10 | 7.7 | 23.0 | HIGH | low | HIGH | low | |
| 9 | 188131 | 2013-03-25 | 816 | - | 10 | 7.7 | 23.0 | HIGH | low | HIGH | low | |
| 9 | 188131 | 2013-04-08 | 61 | - | 9 | 7.6 | 20.0 | HIGH | low | low | low | |
| 9 | 188131 | 2013-04-08 | 61 | - | 9 | 7.6 | 20.0 | HIGH | low | low | low | |
| 10 | 188132 [2-month plot]
 Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier  | 
 
 | 
2013-03-13 | 27 | - | 23 | 8.7 | 23.0 | HIGH | low | low | low | 
| 10 | 188132 | 2013-03-13 | 866 | - | 23 | 8.7 | 23.0 | HIGH | low | HIGH | low | |
| 10 | 188132 | 2013-03-25 | 60 | - | 14 | 8.5 | 24.0 | HIGH | low | low | low | |
| 10 | 188132 | 2013-03-25 | 60 | - | 14 | 8.5 | 24.0 | HIGH | low | low | low | |
| 10 | 188132 | 2013-04-03 | 30 | - | - | - | - | HIGH | low | low | low | |
| 10 | 188132 | 2013-04-08 | 11 | - | 13 | 8.9 | 21.0 | HIGH | low | low | low | |
| 10 | 188132 | 2013-04-08 | 11 | - | 13 | 8.9 | 21.0 | HIGH | low | low | low | |
| 11 | 188262 [2-month plot]
 Mmabatho - at Road Bridge on Molopo River, D/S of Mafikeng  | 
 
 | 
2013-03-20 | 308 | - | 3 | 8.4 | - | HIGH | low | Med | low | 
| 12 | 188487 [2-month plot]
 Gong Gong D/S Barkly West on Vaal  | 
 
 | 
2013-03-15 | 20 | - | - | - | - | HIGH | low | low | low | 
| 12 | 188487 | 2013-04-08 | 35 | - | - | - | - | HIGH | low | low | low | |
| 12 | 188487 | 2013-04-26 | 6 | - | - | - | - | Med | low | low | low | |
| 13 | 188489 [2-month plot]
 Doornfonteyn Middelplaats D/S Warrenton on Vaal  | 
 
 | 
2013-03-15 | 26 | - | - | - | - | HIGH | low | low | low | 
| 13 | 188489 | 2013-04-08 | 28 | - | - | - | - | HIGH | low | low | low | |
| 13 | 188489 | 2013-04-26 | 25 | - | - | - | - | HIGH | low | low | low | |
| 14 | 189142 [2-month plot]
 Standerton Sakhile downstream of STW and Bucket Dumping Site on Vaal  | 
 
 | 
2013-03-19 | 70 | 180 | - | - | - | HIGH | low | low | low | 
| 14 | 189142 | 2013-04-23 | 1600 | 2900 | - | - | - | HIGH | low | HIGH | Med | |
| 15 | 189147 [2-month plot]
 Warden 150 M upstream of Dam Wall on Cornelisrivier  | 
 
 | 
2013-03-06 | 190 | 630 | 90 | 6.0 | - | HIGH | low | low | low | 
| 15 | 189147 | 2013-04-03 | 570 | 570 | - | - | - | HIGH | low | HIGH | low | |
| 15 | 189147 | 2013-04-24 | 150 | 200 | 51 | 7.8 | - | HIGH | low | low | low | |
| 16 | 191050 [2-month plot]
 Floorsdrift 15 - Hoopstad at R59 Road Bridge on Vetrivier  | 
 
 | 
2013-03-18 | 1203 | - | - | 8.6 | - | HIGH | low | HIGH | Med | 
| 16 | 191050 | 2013-04-05 | 649 | - | - | 7.7 | - | HIGH | low | HIGH | low | |
| 17 | 191688 [2-month plot]
 Mmabatho - D/S of Mmabatho WWTW, on Molopo Tributary.  | 
 
 | 
2013-03-20 | 2420 | - | 6 | 8.3 | - | HIGH | Med | HIGH | Med | 
| 18 | 192536 [2-month plot]
 Pampierstad - at Vaal-Harts Weir on Hartsrivier  | 
 
 | 
2013-03-15 | 194 | - | - | - | - | HIGH | low | low | low | 
| 18 | 192536 | 2013-04-08 | 168 | - | - | - | - | HIGH | low | low | low | |
| 18 | 192536 | 2013-04-26 | 488 | - | - | - | - | HIGH | low | HIGH | low | |
| 19 | 192624 [2-month plot]
 Buffelsfontein 443 IP - at Midvaal Intake  | 
 
 | 
2013-03-13 | 860 | - | 22 | 8.7 | 24.0 | HIGH | low | HIGH | low | 
| 19 | 192624 | 2013-03-25 | 34 | - | 13 | 8.4 | 23.0 | HIGH | low | low | low | |
| 19 | 192624 | 2013-03-25 | 34 | - | 13 | 8.4 | 23.0 | HIGH | low | low | low | |
| 19 | 192624 | 2013-04-08 | 16 | - | 13 | 8.9 | 20.0 | HIGH | low | low | low | |
| 19 | 192624 | 2013-04-08 | 16 | - | 13 | 8.9 | 20.0 | HIGH | low | low | low | |
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