Groundwater Resources Association of California - Nonprofit organization for the protection, preservation, improvement of California ground water against pollution. Site has information about the organization and its activities, job announcements, and related material. American Ground Water Trust - Promotes public awareness of groundwater. Information on nonpoint-source pollution and its prevention, upcoming educational workshops and conferences, and publications available from AGWT. British Columbia Ground Water Association - Provides professional and technical leadership in the advancement of the ground water industry and in the protection, promotion and responsible development and use of ground water resources. Karst Waters Institute - Mission is to improve the fundamental understanding of karst water systems. Ontario Ground Water Association - Represents well drillers, pump installers, manufacturers, suppliers, scientists, and engineers. Information about groundwater and applicable laws and regulations in the province. The Groundwater Protection Council - The GWPC is a nonprofit organization dedicated to the protection of U.S. ground water. California Groundwater Association - A non-profit organization representing over 15,000 members promoting the protection of groundwater resources throughout California. Hellenic Committee of Hydrogeology - A scientific committee of the Hellenic Geological Society. Provides publications, news, and workshop schedules. The Consortium for the Advancement of Hydrologic Science Inc. - An NSF sponsored consortium of 125 universities providing support for the study of the terrestrial components and processes of the global water cycle. Water Replenishment District of Southern California - Manages groundwater for nearly four million residents in the cities of Southern Los Angeles County. Includes information on education, conservation, projects and programs.