More than 13 million privately-owned wells and over 100,000 public water supply sources pump ground water to approximately 123 million Americans daily for personal, commercial, industrial, and agricultural uses. Yet, even as the nation's need for water grows, the prevailing lack of public knowledge and understanding about this resource leads to continuing, albeit unintentional, contamination, and also, to a growing attitude that all ground water is becoming unsafe, if not so, already. This catalog contains 72 resource materials which provide comprehensive ground water information in the form of videotapes, learning guides, student activities notebooks, posters, computer software programs, cartoon books, project kits, educational games, textbooks, and curriculum guides. Each resource lists a title, the appropriate grade level(s), a description including the intended use, the cost and source, and the contact address. (JJK)