This publication describes in nontechnical language the problem of pesticide use and how it affects water quality. It provides information on laws affecting pesticide use and the reasons for them, as well as giving directions for the proper use of pesticides. The booklet is divided into five chapters, each of which concludes with a list of study questions (answers at back of book). Chapter 1 introduces the problem of pesticide use and water quality. Chapters 2 and 3 describe the types of pesticides available, their uses, their toxicity and hazards, and safety precautions. Chapter 4 takes up the subject of pesticides and the environment, and suggests methods of pesticide storage and disposal. The final chapter describes an integrated approach to pest management practices--control by cultural, biological, and chemical methods. A reference section is included in the publication. (KC)