Vaal Barrage Reservoir

Timeseries Graphs

Moving 5-year time series graphs for selected variables in the Vaal Barrage and Vaal Dam catchments

Vaal Barrage Catchment

Timeseries graph for Vaal Barrage catchment

B10 – Blesbokspruit at Heidelberg

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

K19 – Klip River at Redan

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

K21 – Klip River at Zwartkopjes Farm

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

LS1 – Leeuspruit at Sasolburg

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

R6 – Rietspruit at Luttig’s Farm

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

RV2 – Rietspruit at Loch Vaal

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

S2 – Suikerbosrant at Three Rivers

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

TW2 – Taaiboschspruit above Sasolburg

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

V2 – Vaal River at Engelbrecht’s Drift Weir

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

V17 – Vaal River at Barrage Outflow

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

Vaal Dam Catchment

Timeseries graph for Vaal Dam catchment

KD – Klip River at De Langesdrift

COD

Conductivity

Nitrate NO3 as N

pH

Phosphate PO4 as P

KSV – Spruitsonderdrift downstream of Vrede

COD

Conductivity

Nitrate NO3 as N

pH

Phosphate PO4 as P

VDS – Vaal River downstream of Standerton

COD

Conductivity

Nitrate NO3 as N

pH

Phosphate PO4 as P

VE – Vaal River above Ermelo

COD

Conductivity

Nitrate NO3 as N

pH

Phosphate PO4 as P

VV – Vaal River at Villiers

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

WAE – Waterval River at Elandslaagte

COD

Conductivity

Nitrate NO3 as N

pH

Phosphate PO4 as P

WF – Wilge River at Frankfurt

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

WH – Wilge River at Harrismith

COD

Conductivity

Nitrate NO3 as N

pH

Phosphate PO4 as P

WLA – Ash River outfall above Bethlehem

COD

Conductivity

E.coli

Nitrate NO3 as N

pH

Phosphate PO4 as P

WMW – Meul River at Waaiwater

COD

Conductivity

Nitrate NO3 as N

pH

Phosphate PO4 as P