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Excerpt from Water Resources of the East St. Louis District The point of first importance is the occurrence of potable water. Whether in the form of Springs, streams, lakes, artificial and natural ponds, wells, etc. The person desiring water wishes to know where he can find it and in what amount. He wishes to know the chemistry of the water, whether it is pure and safe; and if it is desired for boiler purposes, whether it will scale a boiler or whether it must be treated with a compound before it can be SO used. The best manner of obiam ing the water must also be known, the style of well drilling rig best suited to the given depth and the geologic conditions of the region. Data as to cost are also desirable, but are most difficult to obtain. If the water supply is from streams it will be necessary to study the regime of the streams in question, the rise and fall of the waters, the permanence of Sites for water works and reservoirs, and the liability to embarrassment from overflow. On page 31 is begun a discussion of the Mississippi as a source of water supply. And some of the most inter esting as well as most difficult 'oi the water problems in this. District are encountered in the attempt to secure, purify and deliver river water. If the supply is from ponds or lakes the protection of the watershed is of paramount interest, and of great interest also is the effect on the quality of the water of the rank vegetation sometimes found in ponds where the water is too stagnant to be kept free from grasses and weeds. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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