| Site | Activities on site |
| Site 1 (domestic use) | Water for domestic use, washing clothes |
| Site 2 (settlements) | Informal and formal human settlements |
| Site 3 (virgin land) | no apparent human, industrial or agricultural activities |
| Site 4 (sewerage effluent) | Sewage treatment plant in close vicinity |
| Site 5 (near road and farming) | Close to tarmac road. Water also used for flower farming |
| Site 6 (industrial zone) | Near the industrial zone (cement factory in close vicinity), water used for bathing, watering flowers, livestock watering in shallow edges of the river |