| Category | 
                    Item Name | 
                    Item Title | 
                                        Item | 
                    More Info. | 
                                    
                                            
                                 | D. Physiographic Features | 
                                                     D2 Climatic | 
                                Mean temp. precip. monthly (1974-1982, 1931-1960); Water temp, monthly (1988) | 
                    
nam-39-d2.xls
                            
                
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                                 | E. Water Quality | 
                                                     E1 Transparency | 
                                Monthly (1987-1988) | 
                    
nam-39-e1.xls
                            
                
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                                     E2 pH | 
                                Monthly, by depth (1979-1980) | 
                    
nam-39-e2.xls
                            
                
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                                     E6 Chlorophyll | 
                                Monthly (1987-1988) | 
                    
nam-39-e6.xls
                            
                
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                                     E7 Nitrogen | 
                                T-N, monthly, by depth (1974-1980), Total Kjeldahl-N, monthly, by depth (1979-1980) | 
                    
nam-39-e7.xls
                            
                
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                                     E8 Phosphorus | 
                                T-P, monthly, by depth (1979-1980) | 
                    
nam-39-e8.xls
                            
                
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                                 | G. Socio-economic Conditions | 
                                                     G1 Land Use | 
                                Natural, agricultural, lake frontl, industry, conservation (1981) | 
                    
nam-39-g1.xls
                            
                
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                                     G3 Population | 
                                Population, pop. density, total | 
                    
nam-39-g3.xls
                            
                
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                                 | I. Deterioration and Hazards | 
                                                     I2 Toxic Contamination | 
                                DO, sludge deposit, oil&greese, gross radioactivity, Strontium-90, Phenol | 
                    
nam-39-i2.xls
                            
                
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                                     I3 Eutrophication | 
                                T-P from source types | 
                    
nam-39-i3.xls
                            
                
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