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| County | Site | Units | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Eastern Cape | East London | ppb | 19.3 | 18.3 | 17.4 | 16.8 | 16.2 | 15.5 | 14.7 | 13.6 | 13.0 | 13.3 | 13.8 | 15.0 | 16.5 | 18.6 | 20.9 | 22.8 | 23.2 | 23.0 | 22.0 | 21.3 | 20.3 | 19.2 | 18.2 | 16.3 |
| Eastern Cape | Walmer | ppb | 22.9 | 22.6 | 22.1 | 21.2 | 19.4 | 16.9 | 14.5 | 12.3 | 11.0 | 11.0 | 11.5 | 12.2 | 13.9 | 16.6 | 19.4 | 22.3 | 24.2 | 24.5 | 23.6 | 22.0 | 20.9 | 19.7 | 18.5 | 17.3 |
| Eastern Cape | Zwelitsha | ppb | 25.0 | 25.0 | 25.0 | |||||||||||||||||||||
| Free State | Bongani Mabaso Eco Park | ppb | 16.4 | 14.5 | 12.1 | 10.0 | 7.9 | 6.4 | 5.6 | 5.8 | 6.6 | 9.2 | 31.2 | 37.7 | 42.6 | 47.5 | 51.4 | 54.7 | 57.2 | 57.7 | 37.5 | 31.5 | 27.8 | 23.7 | 21.8 | 18.1 |
| Free State | Zamdela | ppb | 13.6 | 11.1 | 8.9 | 6.8 | 5.8 | 4.6 | 4.0 | 3.9 | 4.6 | 7.9 | 12.8 | 17 | 20.7 | 24.8 | 28.1 | 31.1 | 32.8 | 31.6 | 28.1 | 24.9 | 22.5 | 20.1 | 18.8 | 16.9 |
| Gauteng | Booysens | ppb | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 | -1.4 |
| Gauteng | Buccleugh | ppb | 1.4 | 1.1 | 1.0 | 0.9 | 0.8 | 0.7 | 0.7 | 0.7 | 1.0 | 2.2 | 4.5 | 7.2 | 11.1 | 15.5 | 19.8 | 23.3 | 25.1 | 24.7 | 22.5 | 19.8 | 15.9 | 11.5 | 7.2 | 3.6 |
| Gauteng | Diepkloof | ppb | 10.1 | 11.2 | 13.1 | 15.0 | 15.3 | 15.1 | 14.5 | 13.5 | 12.6 | 12.1 | 11.1 | 9.9 | 10.4 | 11.5 | 13.3 | 15.8 | 17.4 | 17.9 | 18.2 | 18.2 | 18.3 | 18.5 | 18.0 | 17.0 |
| Gauteng | Diepsloot | ppb | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Gauteng | Ivory Park | ppb | -4.2 | -4.6 | -4.9 | -5.1 | -5.2 | -5.3 | -5.2 | -5.2 | -5.1 | 36.5 | 33.0 | 28.4 | 24.3 | 19.1 | 12.9 | 6.9 | 1.6 | |||||||
| Gauteng | Jabavu | ppb | 5.7 | 3.8 | 3.3 | 2.8 | 2.6 | 2.5 | 2.6 | 2.6 | 3.5 | 6.0 | 9.3 | 12.7 | 16.4 | 21.6 | 27.0 | 31.6 | 34.3 | 34.1 | 31.5 | 28.8 | 26.1 | 21.0 | 15.4 | 11.1 |
| Gauteng | Kliprivier | ppb | 11.7 | 9.3 | 8.2 | 7.5 | 6.9 | 6.1 | 5.7 | 5.6 | 6.2 | 9.0 | 14.6 | 19.7 | 21.9 | 24.6 | 31.5 | 36.8 | 42.0 | 41.5 | 36.2 | 30.5 | 26.9 | 23.9 | 18.0 | 13.8 |
| Gauteng | Mamelodi | ppb | 15.5 | 15.8 | 15.9 | 16.1 | 16.5 | 16.5 | 16.0 | 16.3 | 16.7 | 20.0 | 25.7 | 32.6 | 40.6 | 50.5 | 61.8 | 73.8 | 81.9 | 87.4 | 81.0 | 73.1 | 65.1 | 57.2 | 48.3 | 35.3 |
| Gauteng | Olievenhoutbosch | ppb | 4.1 | 2.8 | 1.9 | 1.7 | 1.7 | 1.8 | 2.0 | 2.0 | 2.1 | |||||||||||||||
| Gauteng | Orange Farm | ppb | 17.2 | 14.2 | 11.8 | 10.5 | 10.2 | 9.0 | 8.2 | 7.3 | 9.7 | 10.6 | 15.0 | 19.9 | 24.1 | 30.9 | 37.3 | 41.8 | 43.4 | 44.8 | 41.4 | 36.0 | 30.4 | 24.1 | 18.8 | 14.7 |
| Gauteng | Sebokeng | ppb | 12.6 | 11.2 | 10.5 | 8.8 | 7.2 | 5.7 | 4.5 | 3.8 | 4.6 | 7.3 | 11.1 | 15.3 | 17.1 | 19.8 | 23.8 | 27.7 | 27.8 | 25.9 | 21.3 | 18.3 | 17.7 | 16.2 | 13.3 | 10.5 |
| Gauteng | Sharpeville | ppb | 7.6 | 6.1 | 5.2 | 3.5 | 1.9 | 1.5 | 1.3 | 1.4 | 2.1 | 4.4 | 7.8 | 11.9 | 16.6 | 20.5 | 24.4 | 26.7 | 28.5 | 27.2 | 24.5 | 21.6 | 18.1 | 15.2 | 12.0 | 9.9 |
| Gauteng | Three Rivers | ppb | 11.8 | 9.5 | 7.8 | 6.7 | 5.9 | 5.9 | 6.0 | 6.7 | 8.3 | 12.0 | 12.8 | 14.1 | 18.9 | 24.3 | 27.8 | 31.0 | 32.5 | 29.4 | 26.6 | 24.3 | 21.0 | 17.1 | 14.2 | 10.9 |
| KwaZul | Alverstone | ppb | 32.6 | 31.1 | 29.0 | 27.3 | 25.4 | 23.4 | 21.1 | 19.3 | 18.8 | 19.3 | 20.2 | 21.3 | 22.5 | 23.9 | 25.9 | 26.8 | 26.8 | 25.9 | 24.0 | 22.5 | 21.6 | 20.4 | 19.4 | 19.5 |
| KwaZul | Pietermaritzburg Airport - ORIBI | ppb | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| KwaZul | Umkomaas | ppb | 10 | 11 | 13 | 15 | 17 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 24 | 21 | 20 | 19 | 18 | 17 |
| Limpopo | Capricorn | ppb | 18.1 | 16.9 | 15.9 | 15.2 | 14.0 | 12.1 | 10.3 | 9.1 | 9.4 | 10.7 | 13.2 | 15.8 | 18.8 | 22.4 | 25.7 | 28.6 | 30.4 | 31.1 | 30.5 | 28.9 | 27.3 | 25.5 | 23.1 | 19.8 |
| Limpopo | Dilokong | ppb | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Limpopo | Lephalale | ppb | 10.6 | 10.6 | 10.6 | 10.3 | 10.2 | 9.9 | 8.6 | 7.8 | 8.1 | 9.4 | 10.7 | 12.4 | 14.7 | 17.4 | 20.4 | 23.0 | 24.5 | 25.0 | 23.5 | 21.1 | 18.6 | 15.8 | 12.7 | 9.9 |
| Limpopo | Mokopane | ppb | 16.7 | 16.1 | 16.0 | 15.7 | 15.1 | 13.8 | 12.0 | 10.8 | 10.8 | 11.6 | 13.4 | 15.6 | 17.8 | 20.9 | 24.8 | 28.6 | 31.3 | 32.4 | 30.7 | 29.3 | 27.9 | 26.8 | 24.5 | 21.6 |
| Limpopo | Steelpoort | ppb | 20.9 | 19.7 | 18.3 | 17.6 | 17.0 | 15.5 | 13.9 | 13.2 | 13.3 | 14.0 | 15.5 | 17.7 | 21.0 | 25.5 | 30.9 | 34.4 | 37.2 | 39.4 | 40.4 | 39.2 | 36.7 | 33.6 | 29.7 | 27.3 |
| Limpopo | Thabazimbi | ppb | 16.1 | 13.1 | 11.5 | 9.5 | 7.9 | 7.0 | 5.8 | 5.4 | 6.0 | 7.7 | 9.5 | 12.5 | 15.8 | 19.3 | 23.4 | 27.2 | 30.4 | 32.3 | 31.0 | 29.3 | 27.3 | 24.8 | 21.8 | 18.5 |
| Mpumalanga | Balfour | ppb | 20.2 | 16.7 | 13.8 | 11.3 | 8.6 | 7.4 | 7.2 | 6.7 | 8.2 | 11.2 | 15.4 | 20.4 | 25.6 | 30.7 | 34.4 | 38.6 | 42.5 | 42.6 | 39.4 | 35.3 | 30.9 | 26.1 | 24.1 | 22.5 |
| Mpumalanga | Bosjesspruit | ppb | 22.8 | 21.1 | 19.4 | 17.1 | 15.5 | 16.4 | 16.4 | 16.3 | 17.3 | 20.6 | 24.0 | 27.9 | 30.8 | 33.1 | 36.3 | 39.2 | 41.1 | 40.9 | 40.3 | 39.5 | 38.0 | 36.4 | 34.7 | 33.6 |
| Mpumalanga | Club | ppb | 18.6 | 16.5 | 13.9 | 11.4 | 9.3 | 7.5 | 6.0 | 5.4 | 6.6 | 10.0 | 14.8 | 19.2 | 23.5 | 27.8 | 32.1 | 35.5 | 37.6 | 37.0 | 35.0 | 32.6 | 31.5 | 30.5 | 29.4 | 28.6 |
| Mpumalanga | eMalahleni - SAWS | ppb | 5.7 | 3.7 | 3.9 | 4.3 | 4.9 | 5.4 | 5.4 | 5.9 | 7.6 | 10.7 | 14.0 | 17.8 | 22.6 | 27.7 | 31.8 | 34.9 | 37.0 | 36.7 | 36.3 | 34.0 | 31.8 | 29.4 | 25.7 | 24.8 |
| Mpumalanga | eMalahleni -MP Province | ppb | 7.2 | 6.5 | 6.7 | 7.2 | 7.4 | 7.5 | 8.1 | 8.9 | 9.9 | 12.3 | 13.5 | 14.7 | 16.6 | 17.2 | 18.4 | 19.8 | 20.8 | 20.9 | 20.7 | 19.9 | 18.6 | 17.8 | 15.9 | 14.1 |
| Mpumalanga | Embalenhle | ppb | 12.7 | 9.3 | 7.1 | 6.5 | 5.5 | 5.2 | 5.2 | 5.5 | 7.9 | 11.6 | 16.2 | 20.9 | 25.1 | 30.0 | 34.7 | 39.1 | 40.7 | 40.8 | 39.1 | 35.7 | 32.9 | 29.0 | 25.0 | 21.1 |
| Mpumalanga | eMbalenhle North | ppb | 12.9 | 12.3 | 8.8 | 6.5 | 5.3 | 4.7 | 4.4 | 4.9 | 7.3 | 11.3 | 16.0 | 20.6 | 24.8 | 30.1 | 35.0 | 39.0 | 40.2 | 39.2 | 35.1 | 30.8 | 28.0 | 23.4 | 18.8 | 14.7 |
| Mpumalanga | Ermelo | ppb | 5.9 | 6.1 | 6.2 | 6.3 | 5.8 | 5.6 | 5.2 | 4.9 | 6.5 | 8.2 | 11.4 | 14.3 | 17.4 | 21.3 | 24.9 | 27.9 | 28.8 | 28.7 | 28.0 | 27.4 | 26.6 | 24.9 | 23.8 | 22.8 |
| Mpumalanga | Hendrina - SAWS | ppb | 6.3 | 5.4 | 4.4 | 4.3 | 4.3 | 4.3 | 4.2 | 4.2 | 5.5 | 8.4 | 11.5 | 16.8 | 18.9 | 21.8 | 28.8 | 34.6 | 37.9 | 36.4 | 34.5 | 30.9 | 30.9 | 29.0 | 24.2 | 19.5 |
| Mpumalanga | Lebohang | ppb | 26.2 | 25.7 | 26.3 | 26.7 | 26.2 | 24.9 | 22.4 | 21.9 | 22.4 | 23.7 | 25.7 | 28.0 | 30.5 | 34.4 | 39.1 | 42.0 | 43.7 | 42.0 | 39.5 | 38.8 | 37.7 | |||
| Mpumalanga | Secunda | ppb | 16.5 | 13.1 | 10.0 | 7.6 | 5.9 | 4.3 | 4.0 | 4.3 | 6.5 | 10.2 | 11.1 | 15.6 | 20.3 | 25.8 | 31.1 | 35.5 | 36.5 | 35.1 | 31.6 | 27.8 | 24.5 | 20.2 | 16.3 | 12.1 |
| Mpumalanga | Standerton - MP Province | ppb | 1.9 | 1.5 | 1.4 | 1.4 | 1.3 | 1.3 | 1.3 | 1.3 | 1.6 | 2.4 | 4.3 | 7.7 | 8.6 | 11.3 | 14.2 | 16.9 | 18.0 | 18.5 | 17.5 | 14.8 | 13.2 | 10.9 | 8.6 | 6.4 |
| North West | Xanadu | ppb | 12.0 | 9.8 | 8.2 | 7.4 | 6.9 | 6.6 | 6.5 | 6.7 | 7.1 | 8.5 | 11.3 | 15.0 | 19.5 | 25.2 | 31.9 | 39.0 | 45.9 | 50.7 | 51.8 | 50.9 | 48.1 | 43.6 | 38.0 | 31.7 |
| Northern Cape | Karoo | ppb | 43.8 | 43.4 | 41.5 | 39.4 | 37.7 | 35.4 | 32.6 | 29.5 | 27.2 | 26.8 | 28.3 | 30.3 | 32.4 | 35.0 | 37.2 | 40.8 | 44.1 | 46.2 | 46.5 | 45.9 | 44.9 | 43.8 | 43.2 | 42.1 |
| Western Cape | Atlantis | ppb | 38.5 | 37.5 | 35.5 | 34.0 | 33.9 | 33.9 | 34.9 | 37.1 | 41.2 | 42.2 | 50.0 | 58.5 | 61.6 | 61.4 | 58.5 | 53.9 | 51.8 | 49.2 | 42.8 | 35.1 | ||||
| Western Cape | Cape Point | ppb | 23.4 | 22.8 | 22.5 | 22.2 | 22.5 | 22.1 | 21.5 | 21.2 | 20.8 | 20.5 | 20.6 | 20.8 | 21.3 | 22.4 | 23.6 | 24.2 | 24.8 | 25.6 | 26.2 | 26.6 | 26.7 | 26.0 | 24.9 | 23.9 |
| Western Cape | Cape Point | ppb | 24.6 | 24.0 | 23.7 | 23.3 | 23.6 | 23.3 | 22.6 | 22.2 | 22.0 | 21.8 | 22.0 | 22.4 | 22.3 | 20.1 | 21.3 | 22.0 | 22.8 | 23.6 | 24.1 | 24.6 | 25.3 | 27.9 | 26.8 | 25.6 |
| Western Cape | Plattekloof | ppb | 42.6 | 40.1 | 39.4 | 38.7 | 38.3 | 38.2 | 37.3 | 34.4 | 33.0 | 32.8 | 33.2 | 34.5 | 36.2 | 36.3 | 39.8 | 44.3 | 46.9 | 46.4 | 44.9 | 42.9 | 40.6 | 39.8 | 36.8 | 34.3 |
| Western Cape | Worcester | ppb | 0.4 | 0.3 | 0.1 | -0.3 | -0.6 | -0.8 | -1.0 | -1.2 | -1.4 | -1.6 | -1.6 | -1.4 | -1.2 | -0.9 | -0.7 | -0.2 | 0.3 | 0.7 | 0.9 | 1.1 | 1.1 | 1.1 | 1.1 | 0.9 |
