| № | 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)  | 
 
 | 
2013-05-21 | 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 | 90849 [2-month plot]
 Kroonstad - at R76 Road Bridge on Vals River (Old Barend Wessel)  | 
 
 | 
2013-05-09 | 1300 | - | - | 7.5 | - | HIGH | low | HIGH | Med | 
| 5 | 90849 | 2013-06-10 | 1733 | - | - | 7.7 | - | HIGH | low | HIGH | Med | |
| 6 | 101770 [2-month plot]
 Smidts Drift Outspan 23 Schmidtsdrift at Weir on Vaal River  | 
 
 | 
2013-05-06 | 26 | - | - | - | - | HIGH | low | low | low | 
| 7 | 182718 [2-month plot]
 Skoonspruit D/S from Orkney Sewage Works  | 
 
 | 
2013-05-08 | 2420 | - | - | 7.5 | - | HIGH | Med | HIGH | Med | 
| 7 | 182718 | 2013-05-09 | 1081 | - | 3 | 7.9 | 16.0 | HIGH | low | HIGH | Med | |
| 7 | 182718 | 2013-05-09 | 1081 | - | 3 | 7.9 | 16.0 | HIGH | low | HIGH | Med | |
| 7 | 182718 | 2013-05-29 | 6700 | - | 7 | 8.0 | 17.0 | HIGH | Med | HIGH | HIGH | |
| 7 | 182718 | 2013-06-06 | 1300 | - | 4 | 7.6 | 13.0 | HIGH | low | HIGH | Med | |
| 7 | 182718 | 2013-06-06 | 473 | - | 4 | 7.6 | 13.0 | HIGH | low | HIGH | low | |
| 7 | 182718 | 2013-06-20 | 15030 | - | 3 | 7.7 | 9.0 | HIGH | Med | HIGH | HIGH | |
| 8 | 188130 [2-month plot]
 Goedgenoeg 433 IP at Orkney Road Bridge on Jagspruit on R502  | 
 
 | 
2013-05-08 | 133 | - | - | 7.4 | - | HIGH | low | low | low | 
| 8 | 188130 | 2013-05-09 | 9804 | - | 266 | 7.8 | 16.0 | HIGH | Med | HIGH | HIGH | |
| 8 | 188130 | 2013-05-09 | 9804 | - | 266 | 7.8 | 16.0 | HIGH | Med | HIGH | HIGH | |
| 8 | 188130 | 2013-05-29 | 4140 | - | 57 | 7.5 | 17.0 | HIGH | Med | HIGH | HIGH | |
| 8 | 188130 | 2013-06-06 | 860 | - | 123 | 7.5 | 12.0 | HIGH | low | HIGH | low | |
| 8 | 188130 | 2013-06-06 | 231 | - | 123 | 7.5 | 12.0 | HIGH | low | Med | low | |
| 8 | 188130 | 2013-06-20 | 2420 | - | 38 | 7.6 | 9.5 | HIGH | Med | HIGH | Med | |
| 9 | 188131 [2-month plot]
 Koekemoerspruit at Buffelsfontein Bridge  | 
 
 | 
2013-05-09 | 1300 | - | 9 | 7.7 | 14.0 | HIGH | low | HIGH | Med | 
| 9 | 188131 | 2013-05-09 | 1300 | - | 9 | 7.7 | 14.0 | HIGH | low | HIGH | Med | |
| 9 | 188131 | 2013-05-29 | 1750 | - | 11 | 7.5 | 17.0 | HIGH | low | HIGH | Med | |
| 9 | 188131 | 2013-06-06 | 1414 | - | 6 | 7.6 | 11.0 | HIGH | low | HIGH | Med | |
| 9 | 188131 | 2013-06-20 | 2420 | - | 5 | 7.7 | 10.0 | HIGH | Med | HIGH | Med | |
| 10 | 188132 [2-month plot]
 Orkney - at R30 Bothaville Orkney Bridge on Vaalrivier  | 
 
 | 
2013-05-09 | 11 | - | 20 | 9.3 | 17.0 | HIGH | low | low | low | 
| 10 | 188132 | 2013-05-09 | 11 | - | 20 | 9.3 | 17.0 | HIGH | low | low | low | |
| 10 | 188132 | 2013-05-17 | 40 | - | - | - | - | HIGH | low | low | low | |
| 10 | 188132 | 2013-05-29 | 8 | - | 21 | 9.1 | 18.0 | Med | low | low | low | |
| 10 | 188132 | 2013-06-06 | 21 | - | 15 | 9.2 | 14.0 | HIGH | low | low | low | |
| 10 | 188132 | 2013-06-14 | 72 | - | - | - | - | HIGH | low | low | low | |
| 10 | 188132 | 2013-06-20 | 40 | - | 17 | 8.9 | 11.0 | HIGH | low | low | low | |
| 11 | 188262 [2-month plot]
 Mmabatho - at Road Bridge on Molopo River, D/S of Mafikeng  | 
 
 | 
2013-05-21 | 1046 | - | 2 | 8.2 | - | HIGH | low | HIGH | Med | 
| 12 | 188487 [2-month plot]
 Gong Gong D/S Barkly West on Vaal  | 
 
 | 
2013-05-06 | 11 | - | - | - | - | HIGH | low | low | low | 
| 13 | 188489 [2-month plot]
 Doornfonteyn Middelplaats D/S Warrenton on Vaal  | 
 
 | 
2013-05-06 | 20 | - | - | - | - | HIGH | low | low | low | 
| 14 | 189142 [2-month plot]
 Standerton Sakhile downstream of STW and Bucket Dumping Site on Vaal  | 
 
 | 
2013-05-22 | 1600 | 2000 | - | - | - | HIGH | low | HIGH | Med | 
| 15 | 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 | 
| 15 | 189147 | 2013-06-27 | 46 | 73 | 12 | 8.0 | - | HIGH | low | low | low | |
| 16 | 191050 [2-month plot]
 Floorsdrift 15 - Hoopstad at R59 Road Bridge on Vetrivier  | 
 
 | 
2013-05-03 | 866 | - | - | 8.0 | - | HIGH | low | HIGH | low | 
| 16 | 191050 | 2013-06-21 | 866 | - | - | 8.0 | - | HIGH | low | HIGH | low | |
| 17 | 191688 [2-month plot]
 Mmabatho - D/S of Mmabatho WWTW, on Molopo Tributary.  | 
 
 | 
2013-05-21 | 2420 | - | 4 | 8.1 | - | HIGH | Med | HIGH | Med | 
| 18 | 192536 [2-month plot]
 Pampierstad - at Vaal-Harts Weir on Hartsrivier  | 
 
 | 
2013-05-06 | 261 | - | - | - | - | HIGH | low | Med | low | 
| 19 | 192624 [2-month plot]
 Buffelsfontein 443 IP - at Midvaal Intake  | 
 
 | 
2013-05-09 | 16 | - | 19 | 9.4 | 15.0 | HIGH | low | low | low | 
| 19 | 192624 | 2013-05-09 | 16 | - | 19 | 9.4 | 15.0 | HIGH | low | low | low | |
| 19 | 192624 | 2013-05-29 | 9 | - | 20 | 9.2 | 16.0 | Med | low | low | low | |
| 19 | 192624 | 2013-06-06 | 16 | - | 15 | 9.3 | 12.0 | HIGH | low | low | low | |
| 19 | 192624 | 2013-06-20 | 28 | - | 18 | 8.9 | 11.0 | HIGH | low | low | low | |
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