| Category | 
                    Item Name | 
                    Item Title | 
                                        Item | 
                    More Info. | 
                                    
                                            
                                 | D. Physiographic Features | 
                                                     D0 Sketch map | 
                                Areas of concern | 
                    
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                                     D1 Geographical | 
                                Bathymetric map | 
                    
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                                     D2 Climatic | 
                                Temperature-depth profils  (Apr. Jun. Jul. Aug. Oct., 1976) | 
                    
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                                 | E. Water Quality | 
                                                     E2 pH | 
                                pH-depth profile (Jun. Jul. Aug. Oct., 1976) | 
                    
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                                     E4 DO | 
                                Horizontal (lake surface) distribution profile (1964) | 
                    
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                                     E6 Chlorophyll | 
                                Chlorophyll-a, primary productivity, total phosphorus and Secch disc transparency (1974) | 
                    
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                                     E7 Nitrogen | 
                                Horizontal distribution profile, upper 20m and below 20m (1964) | 
                    
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                                     E8 Phosphorus | 
                                PO4-P, Horizontal (lake surface) distribution profile (1964) | 
                    
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                                     E9 Chloride, EC and Conductivity | 
                                Seasonal and sparial distribution of chlorophyll, Plume River, nearshore, offshore (monthly 1980) | 
                    
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                        Seasonal and spatial distribution of chloride, Plume River, nearshore, offshore (monthly 1980) | 
                    
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                                 | I. Deterioration and Hazards | 
                                                     I2 Toxic Contamination | 
                                Past trend of dieldrin residues in fish (1967-1985) | 
                    
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                        Past trend of mercury residues in fish (1967-1985) | 
                    
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                        Past trend of total DDT residues in fish (1967-1985) | 
                    
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                        Past trend of total PCB residues in fish (1967-1985) | 
                    
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                        PCB concentrations in surface sediments in fish (1967-1985) | 
                    
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                        Seasonal variation in Secchi depth in fish (1967-1985) | 
                    
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