Lake Region
E9 CHLORIDE CONCENTRATION [mg l-1] YEAR: 1979 Station Surface -------------------- Harangga 8.6 Prapat 8.3 Mogang 10.1 Onan Run 10.4 Porsea 10.3 Hasingga 11.8 Tomok 11.0 Sabulan 9.2 Muara 9.6 Balige 9.5