| № | Site [ view Olifants 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 | 185085 [2-month plot]
 Kwaguqa D/S Ferrobank STW U/S of Water Treatment Plant on Brugspruit T  | 
 
 | 
2023-01-16 | 7701000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 1 | 185085 | 2023-01-30 | 8164000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 1 | 185085 | 2023-02-13 | 1860000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 1 | 185085 | 2023-02-27 | 4884000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 2 | 188538 [2-month plot]
 Naauwpoort 335 JS downstream of Naauwpoort Sewage Works on Noupoortspruit  | 
 
 | 
2023-01-16 | 100 | - | - | - | - | HIGH | low | low | low | 
| 2 | 188538 | 2023-01-30 | 8212 | - | - | - | - | HIGH | Med | HIGH | HIGH | |
| 2 | 188538 | 2023-02-13 | 10344 | - | - | 7.4 | - | HIGH | Med | HIGH | HIGH | |
| 2 | 188538 | 2023-02-27 | 6830 | - | - | - | - | HIGH | Med | HIGH | HIGH | |
| 3 | 188610 [2-month plot]
 Delmas at Low Water Bridge D/S Delmas STW on Unnamed Stream from Witklip  | 
 
 | 
2023-01-16 | 727000 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 3 | 188610 | 2023-01-30 | 248900 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 3 | 188610 | 2023-02-13 | 1732900 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 3 | 188610 | 2023-02-27 | 2419600 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 4 | 188729 [2-month plot]
 Middelburg 231 IR Botleng (Leeuspruit) U/S Pump Station on Bronkhorstspruit Trib 2  | 
 
 | 
2023-01-16 | 1986300 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | 
| 4 | 188729 | 2023-01-30 | 980400 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 4 | 188729 | 2023-02-13 | 131600 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 4 | 188729 | 2023-02-27 | 1172950 | - | - | - | - | HIGH | HIGH | HIGH | HIGH | |
| 5 | 188910 [2-month plot]
 Blinkwater at R555 Bridge from Steelpoort to Stofberg on Steelpoort River  | 
 
 | 
2023-01-17 | 220 | - | - | - | - | HIGH | low | Med | low | 
| 5 | 188910 | 2023-01-31 | 1194 | - | - | - | - | HIGH | low | HIGH | Med | |
| 5 | 188910 | 2023-02-14 | 426 | - | - | - | - | HIGH | low | HIGH | low | |
| 5 | 188910 | 2023-02-28 | 192 | - | - | - | - | HIGH | low | low | low | |
| 6 | 188912 [2-month plot]
 Spekboom River at Bridge D/S Burgersfort Sewage Works  | 
 
 | 
2023-01-17 | 2568 | - | - | 7.8 | - | HIGH | Med | HIGH | Med | 
| 6 | 188912 | 2023-01-31 | 1366 | - | - | - | - | HIGH | low | HIGH | Med | |
| 6 | 188912 | 2023-02-14 | 2383 | - | - | - | - | HIGH | Med | HIGH | Med | |
| 6 | 188912 | 2023-02-28 | 1970 | - | - | - | - | HIGH | low | HIGH | Med | |
| 7 | 188915 [2-month plot]
 Steelpoortdrift at R555 Road Bridge to Sekhukhune on Steelpoortrivier  | 
 
 | 
2023-01-17 | 48 | - | - | - | - | HIGH | low | low | low | 
| 7 | 188915 | 2023-01-31 | 122 | - | - | - | - | HIGH | low | low | low | |
| 7 | 188915 | 2023-02-14 | 60 | - | - | - | - | HIGH | low | low | low | |
| 7 | 188915 | 2023-02-28 | 26 | - | - | - | - | HIGH | low | low | low | |
| 8 | 1000009854 [2-month plot]
 Witpoort River at R555 Bridge from Steelpoort to Stoffberg  | 
 
 | 
2023-01-17 | 108 | - | - | - | - | HIGH | low | low | low | 
| 8 | 1000009854 | 2023-01-31 | 579 | - | - | - | - | HIGH | low | HIGH | low | |
| 8 | 1000009854 | 2023-02-14 | 649 | - | - | - | - | HIGH | low | HIGH | low | |
| 8 | 1000009854 | 2023-02-28 | 186 | - | - | 7.7 | - | HIGH | low | low | low | |
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