
            E9 CHLORIDE CONCENTRATION [mg l-1]
  Year    Cl-(no.of samples)
1967-68      136-138 (34)
1970-71      132-149 (36)
  1975       125-127 (5)
  1979         142 (3)
Source: Allanson, B. R. (1979) The physico-chemical limnology of Lake Sibaya. Lake Sibaya (ed. Allanson, B. R.), pp.42-74.