Ground-water quality of coastal aquifer systems in the West Coast basin, Los Angeles County, California, 1999-2002DIANE Publishing |
عبارات ومصطلحات مألوفة
1,2-dibromo-3-chloropropane 1,2-Dibromoethane 1,2-Dichloroethane 30 public-supply Agriculture Urban Albers equal area aquifer Atrazine Base modified central meridian 157°58 central Oahu chemicals chlorofluorocarbon chloroform CONCENTRATION IN GROUND DBCP Detection rates digital elevation models equal area projection Excess CFCs EXPLANATION LAND forest FORMER PINEAPPLE FIELDS fumigants Geological Survey digital ground water GROUND-WATER STUDY AREA Hawaii herbicides Honolulu insecticides LAND USE Agriculture lands in central methods MICROGRAMS PER LITER minimum reporting level modified from U.S. NAWQA GROUND-WATER STUDY nitrate Number of organic Number of pesticides Number of VOCs nutrients open interval percentile pesticides PRESENT AND FORMER public-supply and monitoring PUBLIC-SUPPLY WELL MONITORING Relief from U.S. samples saprolite solvents standard parallels 21°19'40 STUDY AREA PUBLIC-SUPPLY Survey digital data Survey digital elevation table D1 Tetrachloromethane trichloroethene trihalomethanes tritium Tritium concentration U.S. Geological Survey urban Honolulu urban-military USGS VOCs VOCs excluding fumigants volatile organic compounds Waianae water quality water table water-quality Yes Yes जे जे जे
مقاطع مشهورة
الصفحة ii - The use of firm, trade, and brand names in this report is for identification purposes only and does not constitute endorsement by the US Geological Survey For additional information write to: District Chief US Geological Survey 333 W.
الصفحة iii - ... critical interest to the USGS because it is so integrally linked to the long-term availability of water that is clean and safe for drinking and recreation and that is suitable for industry, irrigation, and habitat for fish and wildlife. Escalating population growth and increasing demands for the multiple water uses make water availability, now measured in terms of quantity and quality, even more critical to the long-term sustainability of our communities and ecosystems. The USGS implemented the...
الصفحة iii - FOREWORD The US Geological Survey (USGS) is committed to serve the Nation with accurate and timely scientific information that helps enhance and protect the overall quality of life, and facilitates effective management of water, biological, energy, and mineral resources.
الصفحة iii - The US Geological Survey (USGS) is committed to serve the Nation with accurate and timely scientific information that helps enhance and protect the overall quality of life, and facilitates effective management of water, biological, energy, and mineral resources. (http://www.usgs.gov/). Information on the quality of the Nation's water resources is of critical interest to the USGS because it is so integrally linked to the long-term availability of water that is clean and safe for drinking and recreation...
الصفحة iii - Tribal, and local—as well as nongovernmental organizations, industry, academia, and other stakeholder groups. Your assistance and suggestions are greatly appreciated. Robert M. Hirsch Associate Director for Water Contents Abstract 1 Introduction...
الصفحة 1 - ... resources and to link the status and trends with an understanding of the natural and human factors that affect the quality of water (Hirsch and others, 1988; Leahy and Thompson, 1994; Gilliom and others, 1995).
الصفحة iii - ... needs, and will foster increased citizen awareness and involvement in the protection and restoration of our Nation's waters. The USGS recognizes that a national assessment by a single program cannot address all water-resource issues of interest. External coordination at all levels is critical for cost-effective management, regulation, and conservation of our Nation's water resources. The NAWQA Program, therefore, depends on advice and information from other agencies — Federal, State, regional,...
الصفحة iii - ... providing the Nation with credible scientific information that helps to enhance and protect the overall quality of life and that facilitates effective management of water, biological, energy, and mineral resources (http://www.usgs.gov/). Information on the Nation's water resources is critical to ensuring long-term availability of water that is safe for drinking and recreation and is suitable for industry, irrigation, and fish and wildlife. Population growth and increasing demands for water make...
الصفحة iii - ... and aquatic ecology; and continuing national topical studies on the fate of agricultural chemicals, effects of urbanization on stream ecosystems, bioaccumulation of mercury in stream ecosystems, effects of nutrient enrichment on stream ecosystems, and transport of contaminants to public-supply wells. The USGS aims to disseminate credible, timely, and relevant science information to address practical and effective water-resource management and strategies that protect and restore water quality....