Chapter 2 (continued) 



Groundwater 2-49 



Overburden thickness and bedrock surface topography .... 2-51 



Potentiometr ic surface of bedrock wells 2-51 



Ground and surface water contamination 2-51 



Research needs in geology and hydrology 2-53 



The Socioeconomy 2-54 



Fisheries 2-55 



Aquaculture 2-58 



Forest industry 2-58 



Agriculture industry 2-59 



Mineral industry 2-59 



Recreation industry 2-60 



Sport fishing, hunting, and trapping 2-62 



Economy 2-62 



Transportation 2-65 



Population 2-65 



Land use 2-66 



Freshwater supply 2-66 



Socioeconomic research needs 2-66 



REFERENCES 2-73 



CHAPTER 3: HUMAN IMPACTS ON THE ECOSYSTEM 3-1 



COMMERCIAL FISHERIES 3-3 



FORESTRY 3-4 



AGRICULTURE 3-7 



Soil Erosion 3-8 



Nutrient Runoff 3-9 



Pesticides 3-9 



Habitat Modification 3-13 



MINERAL EXTRACTION 3-13 



PORTS AND NAVIGATION 3-14 



Dredging 3-15 



TRANSPORTATION 3-19 



TOURISM AND RECREATION 3-20 



SPORT FISHING AND HUNTING 3-21 



INDUSTRY AND POPULATION 3-22 



Water Pollution 3-22 



Bacterial pollution 3-23 



Dissolved oxygen 3-23 



Turbidity 3-27 



Eutrophication 3-27 



Heavy metals 3-27 



Thermal pollution 3-30 



PCBs 3-32 



Air Pollution 3-33 



Sulfur dioxide 3-34 



Nitrogen oxides 3-35 



Carbon monoxide 3-35 



Particulates 3-35 



Ozone 3-35 



in 



