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.