This revised second edition is essential to everyone involved with water and water resources-complying with the myriad federal, state, and local laws and regulations that govern the use and management of water in our attempts to maintain, clean, usable water. It includes the law of water diversion and distribution; water resources development and protection; water treatment and land use; ocean dumping; oil and hazardous substances cleanup; riparian and non-riparian systems; Eastern permit systems; beneficial use; water codes; prior appropriation; surface and ground water; channel modifications; municipal water supply; irrigation; California Water Management Districts; Bureau of Reclamation; Corps of Engineers; Water Resources Development Act of 1986; SCS, TVA, BPA, NEA, CERCLA, CWA, SDWA, RCRA, and their substantial changes in the last four years; water resources planning and research; public use; ownership of beds and banks; wild and scenic rivers; river corridor and instream flow protection; flood insurance, Section 404 and Section 208; the Supreme Court and water conservation; heat dischargers; quality-based effluent limitations; state ground water programs; pretreatment; funding; enforcement; citizen suits; and many more vital topics.

Data on water quality and other environmental issues are being collected at an ever-increasing rate. In the past, however, the techniques used by scientists to interpret this data have not progressed as quickly. This is a book of modern statistical methods for analysis of practical problems in water quality and water resources.The last fifteen years have seen major advances in the fields of exploratory data analysis (EDA) and robust statistical methods. The 'real-life' characteristics of environmental data tend to drive analysis towards the use of these methods. These advances are presented in a practical and relevant format. Alternate methods are compared, highlighting the strengths and weaknesses of each as applied to environmental data. Techniques for trend analysis and dealing with water below the detection limit are topics covered, which are of great interest to consultants in water-quality and hydrology, scientists in state, provincial and federal water resources, and geological survey agencies.The practising water resources scientist will find the worked examples using actual field data from case studies of environmental problems, of real value. Exercises at the end of each chapter enable the mechanics of the methodological process to be fully understood, with data sets included on diskette for easy use. The result is a book that is both up-to-date and immediately relevant to ongoing work in the environmental and water sciences.