Site number | Site name | Coordinates | Description |
Site 1 | Vermaasdrift | 26˚56'10.3"S, 26˚51'00.8"E | Reference point to determine impacts of Koekemoerspruit on Vaal River; part of Middle Vaal, upstream of confluence of Koekemoerspruit and Vaal River. |
Site 2 | Vaal River | 26˚56'04.5"S, 26˚48'01.4"E | Vaal River at Midvaal Water Company’s abstraction point downstream of confluence of Koekemoerspruitand Vaal River. Water quality at this site is critical and determines water treatment processes and operations of Midvaal Water Company. |
Site 3 | Enviroclear overflow | 26˚54'37.8"S, 26˚48'50.5"E | ± 9 km cement canal downstream from site 4 flowing from nearby mining plant into Koekemoerspruit. |
Site 4 | Koekemoerspruit before Enviroclear overflow | 26˚54'40.3"S, 26˚48'55.4"E | Koekemoerspruit from below Khuma urban village before inflow of canal; indicates influence of urban village. |
Site 5 | Koekemoerspruit after Enviroclear overflow | 26˚54'51.7"S, 26˚48'57.0"E | Koekemoerspruit after confluence of canal with site 4; represents water that will enter Vaal River. |