自来水厂的改善在威尔明顿

自来水厂的改善在威尔明顿

威尔明顿的自来水厂系统。有限公司nstructed in 1881 by J. A. Cloud for the Clarendon Water Works Company. The supply then as now is taken from Cape Fear River, from which it is pumped to standpipe. The source of supply is only two miles front the city. The capacity of the present standpipe is 146,000 gallons. It is 150 feet high and 20 feet in diameter. and is constructed of steel. The contractors were R. D. Cole & Company, of Newman, Ga. There is a receiving reservoir at the pumping station with an elevation of 20 feet above city datum. The system of filtration is mechanical, constructed by the Pittsburg Filtration Company. There is also a water softening plant installed by the American Water Softener Company. There are four Worthington pumping engines employed in the system with an aggregate capacity of 8,500,000 gallons. The improvements recently made are described by a correspondent as follows: The pumping station has been entirely rebuilt, giving a very substantial and attractive looking brick and concrete fireproof building. The old 100-horsepower boiler with two old alternates have been replaced with three modern water-tube boilers of 150 horsepower each. One old pump has been discarded and a new, triple expansion, high duty pump of four million gallons capacity added; also an additional low lift pump and electric generator. The capacity of the filter plant has been doubled by the addition of new filters with sedimentation basin, all of the most modern construction, and which can be run separately or in connection with the old filters. The capacity of the entire plant is now four million gallons per day or four times the present average daily consumption, and space has been provided for a future extension of two and one-half millions, and a possible extension of five and one-half millions. A steel tower and tank of 146,000 gallons capacity and 150 feet high has been erected, which has increased the domestic pressure about thirty pounds, making the present pressure seventy-five pounds, and which affords all parts of the system sufficient pressure for all domestic services, and also for all ordinary fire service demands. The storage of filtered water has been increased to 1,250,000 gallons. The twelve-inch force main connecting the pumping station with the city has been paralleled with a twenty-four-inch line. The distributing system has been doubled in mileage, and primary and secondary mains added of twenty, sixteen, twelve and ten-inch sizes.

The distribution consists of 30 3/4 miles of cast iron mains from 24 inches to 4 inches in diameter, and there are 225 hydrants of the Columbia, Holyoke and Chapman patterns. The 277 valves were supplied by the Michigan Brass and Iron Company and the Chapman Valve Manufacturing Company. The total number of meters set is 1,327. of which 33 are Crown, 14 Empire, 200 Nash, 2 Gem. 7 King. 100 Union Rotary. 10 Columbia. 12 Ball & Fitts, 158 Trident, 227 Hersey, 146 Hersey Disc, 2 Hersey Detectors, 55 Lambert, 16 Worthington piston, 22 Worthington Disc. 3 Duplex, 1 Buffalo, 19 Keystone and 1 Standard, all being owned by the city. The works cost $387,000 to construct to date, and there is a bonded indebtedness for the full amount. The interest paid on bonds is 4 1/2 per cent, and the yearly cost of maintenance is $225,000. The plant is owned by the city. The officials are Walter G. MacRae, Mayor; John J. Fowler, City Clerk; C. R. Humphreys, City Engineer, and R. C. Cantwell, superintendent.