WATER SUPPLY OF MIDDLETOWN, CONN.
The total receipts of the water works of Middletown, Conn., were $32,878.98. and the total expenditures, $22,075.77. leaving surplus revenues over all expenses, $10,803 The expenditures on the Higby Mountain system were $197,436 87, which, deducted from receipts from sale of bonds, interests on deposits, etc. —$215,435 38 left an unexpended balance of $17,998.51. Early in the month of October 1897, the water developed a fishy taste, caused by the presence of a globular form of plant, the Uroglena volvox, which, when broken up under the water pressure in the pipes, develops a very minute quantity of an aromatic oil. The work on the new reservoir —the Higby Mountain system—was begun early in April and finished so that the gate was closed on November 24. On December 18, there were 10q.000.000 gallons of water in the reservoir, which covers about 130 acres, with a storage capacity of 275,000,000 gallons. The depth of water at the gate house will be twenty-six feet. The dam is about 800 feet in length on top, built of earth, with inside slope two and onehalf feet horizontal to one foot perpendicular, the inside slope being covered three feet thick with stone rip-rap to prevent washing, the outer slope with soil seeded down. Width at top, sixteen feet; at bottom, 133 feet. In the centre, and extending its entire length is a Portland cement concrete core wall, with a batter on each side of one foot in ten. The core wall extended from the rock bottom to a point one foot above the water line and at its greatest depth was about forty feet in height. The concrete was made of Atlas Portland cement, one part cement,three parts sand, and three parts crushed trap rock, forming one mass of solid concrete from top to bottom, and the extreme length of the dxm, all of which was covered with cement plaster, making it perfectly watertight throughout its entire length. The wasteway was excavated through rock, leaving a clear way of fifty feet in width, over which a bridge has been constructed for convenience of travel in connection with the new roads that extend entirely round this basin. The bottom of the wasteway is located five feet below the top of the dam. The cost of construction was about $197,000. A thirty-sixinch waste gate war. placed in the gate house, and pipe extended through and under the dam, so that at any moment it can be opened or closed, as may be desirable. The south reservoir is so arranged that the water can be drained into the main reservoir, or wasted below the dam of main reservoir, as may be desirable from time to time. Cast iron pipes have been substituted for cement in many streets and extensions made in localities which are rapidly building up. One hundred and two service pipes were laid during the year, and 1,496 feet twoinch and 500 feet of one-inch cement sewer pipe laid.