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This collection comprises volumes 238-241 of the Geological Survey Water-Supply Papers, documenting investigations and research related to the nation’s water resources. These papers present detailed geological and hydrological data, analysis, and findings crucial for understanding water availability, quality, and management. Researchers, policymakers, and civil engineers will find valuable insights into water-related challenges and solutions explored by the U.S. Geological Survey during the period covered by these volumes. This historical record is essential for anyone interested in the study of water resources and their impact on society and the environment.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
