. Journal of the New England Water Works Association . er, the textile, paper and the silk. It is diffi-cult to state the volume used in each trade, because in many plants no recordis kept and estimates vary widely. On some streams the entire flow of ariver is diverted through the plant at certain seasons of the year. Someidea may be had from the following estimates of the volume of water usedby all industries on the Naugatuck and Hockanum rivers: Waste Waters from Factories. Gal. per Day. Naugatuck River 73 082 000 Hockanum River 8 000 000 * Director, Bureau of Sanitary Engineering, Connectic
. Journal of the New England Water Works Association . er, the textile, paper and the silk. It is diffi-cult to state the volume used in each trade, because in many plants no recordis kept and estimates vary widely. On some streams the entire flow of ariver is diverted through the plant at certain seasons of the year. Someidea may be had from the following estimates of the volume of water usedby all industries on the Naugatuck and Hockanum rivers: Waste Waters from Factories. Gal. per Day. Naugatuck River 73 082 000 Hockanum River 8 000 000 * Director, Bureau of Sanitary Engineering, Connecticut Department of Health. JACKSON. 15 Water Consumption. Gal. per Day. Naugatuck Eliver 21 050 000 Hockanum River 1 740 000 The relation between the use for domestic and industrial purposes isshown clearly by these figures, and even more so if we consider two specificeases. • % The estimated water consumption of Torrington is 2 710 000 gal. perday. The plant of the Coe Brass Company in this city usedjrom its ownprivate supply 8 150 000 gal. per Vanatloninf low Hockcmym River The estimated water consumption for Waterbury is 11 600 000 day. The Scovill Manufacturing Company from its private supplyused 13 950000 gal. per day. }t fc*fc. In this connection the record of gage heights of the Hockanum Eliverbelow the city of Etockville is very interesting. By comparing flow for week days and Sundays, it appears thai twelvefactories use practically the entire How of the river in their processes ofmanufacl inc. 16 POLLUTION OF STREAMS. Evidently, then, one of the main considerations determining the lo-cation of industries on our rivers was volume of flow. The constancy ofthis volume is another very important factor, but we do not propose todiscuss that here. The second main consideration affecting the use of water industriallyis quality. The quality of water desirable for boiler purposes has been the subjectof much discussion, and the amount and character of chemical const
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