INCREASING WATER SUPPLY AT WALTHAM.
Waltham, Mass., recently made an appropriation of $40,000 for the purpose of building a new collecting well, installing pumps and otherwise increasing the water supply. Four 2 1/2-in test wells have been driven to a depth of 40 to 60 ft., and on the whole the business of the past year has been heavy and much work has been done. Ninety-nine hundred’ feet of cement-lined pipe were removed and iron pipe of larger size laid down in its place. A total of 13,987 ft of street mains was laid, besides 8,402 ft. of laterals: seventeen hydrants were added; six were taken out; twenty-five new gates were placed and nine removed; eighty-two services were laid, thirtyeight relaid, and eight extended; ninety-seven services were cleaned and fifty-three repaired. But very little complaint was heard of unpleasant conditions of the water; the pumps and boilers have been repaired, and it will soon be necessary to take up the question of a new boiler. The total putnpage in 1906 was 705,360,048 gals.—50,206,850 less than in 1905, and, owing to greater watchfulness and supervision on the part of the authorities, there has been a marked decrease in the consumption of water during the past five years, the per-capita consumption having fallen from 97 to 70 gals. The consumption of water for the public service amounted to 71,150,000 gals., or 7 1/2 gals, per capita per day. Water for domestic use was furnished to the following: Five thousand five hundred and sixty families; 6,250 first faucets; 3,356 second faucets; 3,140 bath tubs; 2,750 wash trays; 6,690 waterclosets; 1,310 hand-hose; 1,215 horses; 175 cows. The walls of the new reservoir are T8 ins. thick at the bottom and 12 ins. at the top, the batter being outside. The reinforcing rods are of steel, lapped forty diameters, and supported by a unique and ingenious device to secure proper spacing. The roof is concrete and steel, supported by iron trusses. There is a central pier which also serves as an overflow. The following details are interesting: Estimated total population at date, 27,350; estimated population on lines of pipe. 27.200; estimated population supplied, 26,950: total consumption for the year, 705,360.048 gals.; passed through meters, 76,121,745. Percentage of consumption metered. 10%: average daily consumption, 1,929,726 gals.: gals, per day to each inhabitant, 70.6: gals, per day to each consumer, 71; gals, per day to each tap. 533. Cost of supplying water per 1,000,000 gals., figured on total maintenance, $53.95; total cost of supplying water, per 1.000,000 gals., figured on total maintenance and interest on bonds, $94.96. L. Brown is water registrar.