Report Upon New York's Water Supply: With Particular Reference to the Need of Procuring Additional Sources and Their Probable Cost, with Works Constructed Under Municipal Ownership Made to Bird S. Coler, Comptroller

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Martin B. Brown Company, printers, 1900 - 593 էջ
 

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Էջ 555 - ... has become more or less stained with iron oxide and is known by geologists as the yellow gravel. From the western end of Long Island the yellow gravel extends southwestward across Staten Island and the lowlands of New Jersey; and it is to be regarded as one of the most important as well as one of the latest formations of the Atlantic seaboard. It belongs chiefly, at least, to the Lafayette division of the Neocene period; while the underlying blue clay and gray gravel may be referred, provisionally,...
Էջ 560 - ... it will probably be clearer to the general reader and more useful, we now enumerate only the principal or heavier ones. They are as follows, commencing at the base along the Delaware river and passing eastward so as to reach successively higher and higher horizons : No. 1, First Horizon — A group. This may be defined as a group of two or three horizons in heavy gravel and cobble strata near the base of the plastic clays, which clays are variously colored white, yellow and red, or they are mottled...
Էջ 561 - NJ, some of the upper of these horizons would not be met with at all points, but southward from Barnegat if a well were drilled anywhere sufficiently deep it would probably find all of them, unless perhaps a few of the thinner ones, which have as 'yet only been developed in the central and western side of the coastal plain, might not continue as open sands so far seaward. The following table gives, where known, the approximate interval in feet from the top of one horizon to the top of the next: WATER...
Էջ 578 - Notes on the Geology of the Sites of the Proposed Dams in the Valleys of the Housatonic and Ten Mile Rivers.
Էջ 560 - ... midway in the clay marl or Matawan formation. It is not, so far as yet known, more than a few feet thick, but yields mostly a satisfactory quality of water, often doing so at points where the water from the next higher horizon, as is occasionally the case, proves somewhat too irony.
Էջ 49 - Boarding houses. Average of all dwellings supplied by meter. All houses supplied with modern plumbing. These families have but one faucet each. These families have but but faucet each.
Էջ 13 - ... Croton water, in gallons per day, has been accurately measured, with the result of showing that the estimates of consumption and of growth in consumption of water made by the Department of Water Supply at the time the Ramapo contract was urged were about forty million gallons per day too large." " A very full geological study of the deep subterranean strata of Long Island and of Staten Island has been made with a view to learning of the possibility of a supply from deep wells, and of the best...
Էջ 43 - ... from 91.5 gallons per capita in 1883 to 68 gallons in 1884.
Էջ 567 - Ward of Brooklyn gave : Loam and fine sand, 10 feet ; water-bearing gravel, 25 feet ; clay, I foot ; sand and gravel, 35 to 65 feet ; and then clay (probably the blue clay). The collective yield of these wells is 2,000,000 gallons in 24 hours. The yellow gravel is, evidently, the surface formation here. The well at Malcolm's Brewery, in Brooklyn, 62 feet deep, presents similar conditions.
Էջ 358 - Crosby, of the Department of Geology at the Massachusetts Institute of Technology, and...

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