| Category | 
                    Item Name | 
                    Item Title | 
                                        Item | 
                    More Info. | 
                                    
                                            
                                 | D. Physiographic Features | 
                                                     D2 Climatic | 
                                Mean temp. precip. monthly (1931-1960); Water temp. monthly, by depth (1980) | 
                    
nam-61-d2.xls
                            
                
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                                 | E. Water Quality | 
                                                     E1 Transparency | 
                                Monthly, (1980) | 
                    
nam-61-e1.xls
                            
                
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                                     E2 pH | 
                                Monthly, by depth (1980) | 
                    
nam-61-e2.xls
                            
                
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                                     E4 DO | 
                                Monthly, by depth (1980) | 
                    
nam-61-e4.xls
                            
                
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                                     E6 Chlorophyll | 
                                Monthly, by depth (1980) | 
                    
nam-61-e6.xls
                            
                
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                                     E7 Nitrogen | 
                                T-N, monthly by depth (1980) | 
                    
nam-61-e7.xls
                            
                
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                                     E8 Phosphorus | 
                                T-P, monthly by depth (1980) | 
                    
nam-61-e8.xls
                            
                
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                                 | G. Socio-economic Conditions | 
                                                     G1 Land Use | 
                                Natural, agricultural, residential (1987) | 
                    
nam-61-g1.xls
                            
                
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                                     G3 Population | 
                                Population and pop. density (1980) | 
                    
nam-61-g3.xls
                            
                
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                                 | I. Deterioration and Hazards | 
                                                     I2 Toxic Contamination | 
                                DDE, PCB (1980) | 
                    
nam-61-i2.xls
                            
                
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