Ground water in the Hartford, Stamford, Salisbury, Willimantic and Saybrook areas, Connecticut . (PI. V, B).Water enters these passages, joints, or cracks from the saturatedoverlying material, circulates througli them, and eventually issuesas springs or seepsback into drift atlower levels. Thelimestone is so com-pact that it containsonly small quantitiesof water, and thesolution channels bywhich it is traversedin some places serveas drains through therock itseK and afforda rapid escape forwater along theircourses; conse-quently above thevalley levels the lime-stone may becomedry very early in
Ground water in the Hartford, Stamford, Salisbury, Willimantic and Saybrook areas, Connecticut . (PI. V, B).Water enters these passages, joints, or cracks from the saturatedoverlying material, circulates througli them, and eventually issuesas springs or seepsback into drift atlower levels. Thelimestone is so com-pact that it containsonly small quantitiesof water, and thesolution channels bywhich it is traversedin some places serveas drains through therock itseK and afforda rapid escape forwater along theircourses; conse-quently above thevalley levels the lime-stone may becomedry very early in aperiod of drought. GROUND WATERFOR MUNICIPALUSE. PROBLEMS IN-VOLVED. The problems tobe considered inplanning the use ofground water for anew or enlarged pub-lic water system re-late to the quantityof water available,the quality of thewater, the methodsof obtaining it, andthe cost of establish- * ing and maintaining the works. These problems are largely interde-pendent, and their relative importance depends on the proposed usesof the water and the conditions under which it is to be 26 (iROUND WATER TN TTTF HARTFORD AND OTHER AREAS, CONX. QUANTITY REQUIRED. In a town having an established water system the per capita con-sumption is kno^vn and the quantity of water required for extendingthe system can be estimated with a fair degree of accuracy. Ina small town or community in which a public supply is designed toreplace private weUs an estimate of the amount of water requiredshould be based on a comparative study of the consumption in townsof similar characteristics. Plans for cities or for smaller communi-ties involve consideration of future needs based on the probablerate of increase in population and the circumstances affecting it,and also on the estimated rate and amount of development of indus-trial enterprises. In a State such as Connecticut, where the sig-nificance of past conditions and present trends of population and in-dustries are fairly well understood, an
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Keywords: ., bookcentury1900, bookdecade1910, bookpubl, booksubjectwatersupply
