Important Water Works Development in Canton, O.
Improvements Consisting of 15,000,000 Gallon Distributing and Equalization Basin, 1,000,000 Gallon Receiving Basin, New Pumping Station, Extension of Mains, Etc., Under Way
APPROXIMATELY $1,500,000 is being spent by the city of Canton O., in the development of its water supply, which when completed will insure the city an adequate water supply for the next 50 years. The various projects, several of which already have been completed have been approved by the state department of health. The water development which was started two and one half years ago, with the selection of a water commission comprised of eight men of technical experience, has progressed without interuption despite abnormal times and the high cost of material under the supervision of the late R. Winthrop Pratt, of Cleve land. W. R. Zollinger, is head of the city water commission. Engineers in charge say the development will be completed early next spring.
Although delayed by inclement weather, inability to get material and labor shortage, all projects now are being rushed to completion, according to Superintendent L. B. Ohliger. Work of laying the steel network of the huge floor of the equalization basin was started recently. With the arrival of a supply of cement work was resumed on the receiving basin. Laying of the 36 inch main is progressing rapidly and with favorable weather this project should be completed this year. It will run from the new pumping station to the big 10,000,000 gallon capacity equalization basin.
Improvements Included in Developments
The projects included in the development are the construction of a 15,000,000 gallon distributing and equalization reservoir, construction of a 1,000,000 capacity receiving basin, extension of mains, erection of a new pumping station, drilling of twenty 12-inch wells, installations of new pumps and motors and metering of the city.
The rapid growth of “the city of diversified industries” in the last ten years and especially in the last five began to tax the available water supply almost to its limit. Water shortages throughout the summer months were frequent. Finally investigations for additional sources was started.
Wells Present Source of Supply
For twenty years past the source of supply has been from six and twelve inch wells in gravel formation of the west creek valley in the southwest part of the city. These wells were provided with wrought iron casting, perforated pipe and brass screen for strainers and averaged about 125 feet in depth. They were connected with a 3-inch cast iron pipe suction line, about a mile in length, level through its entire length and connected with the suction chambers with a vertical triple expansion pump of 12,000,000 gallons per day capacity. Originally the head at the wells was sufficient to deliver the water to the pumps, but on account of the increased demand the water had receded until the present static head under pumping is about 14 feet.
To stimulate the supply several wells were drilled into the rock, about 400 feet in depth, penetrating the vein of conglomerate known as “Big Injun.” Deep well pumps were installed at seven such wells, five having 750,000 gallons per day capacity and two having 1,500,000 gallons capacity per day each. The last mentioned pumps at present are the only ones of this type in operation
Other Wells Added to System.
During the winter of 1916 and 17 prospecting was carried on northeast of the city in the valley of the middle granch of Niminshillen creek. Surface formations pointed to the possibility of an excellent ground water supply in that section. This prospecting, chiefly to ascertain the depth of the rock which underlies the gravel deposits, was carried on by driving one and a quarter inch pipe by hand until rock was struck or the limit was reached by that method, which was about 83 feet. What purported to be an excellent location was thoroughly investigated in this manner and later an eight inch well was drilled to the depth of 197 feet, passing through 191 feet of excellent water bearing gravel of various grade from coarse sand to one and a half inches in size. The farm at this site consisting of 93 acres was purchased. Eight six inch wells were sunk to a depth of 100 feet and connected with an old three m. g. d. pump. discharging into the distribution system, to test this supply, but on acount of the increased de mand this equipment has been kept in operation.
Receiving Basin Added
In the spring of 1918 two 7.5 m. g. d. low head motor driven centrifugal pumps and vacum pumps were installed at the southwest field as boosters, discharging into the 30-inch suction line and delivering the water to the 12 million gallon pumps mentioned above. At this booster station now has been constructed a receiving basin of 1,000,000 gallons capacity which when in operation will receive the water from the booster pumps, aerate it, reducing the iron which it contains and feed it to the large pumps as well as afford a small storage should the large pumps distribute less at times than the boosters discharge. This basin is of reinforced concrete construction with flat slab roof design of one chamber with controlling equipment and facilities for cleaning. A by-pass is provided to deliver the water to the large pumps, while for various reasons the basin may not be in operation.
Work already has been started on permanent installations for the development of the northeast field. The number of wells, which will be 12 inches in diameter, to be drilled in this field will depend on the amount of water each will supply. Eight have already been contracted for and it is likely that at least 14 will be drilled. The eight 6-inch wells will also be utilized with the permanent installations. Each well will be provided with pumping equipment of some time not yet determined and will discharge into a 1.5 million gallon capacity receiving basin of similar construction as that in the southwest end. A new pumping station (Fig. 1) is being erected adjacent to this receiving basin and building and equipment already has been contracted for. This building will be of concrete brick and steel construction. It will house four high head motor driven centrifugal pumps each of five million gallons capacity, three of which will be in continuous service and one for reserve. The water will flow from the receiving basin to the pumps and will be discharged into the distribution system and to the equalizing basin.
Equalization Basin Largest Unit
The equalizing basin for which the contract has been awarded and on which work is progressing rapidly will be of 15,000,000 gallon capacity, and will be the largest individual project of the development. The bottom of this basin will be 154 feet higher than the public square level, affording ample pressure for ordinary use. It will be of reinforced concrete construction, flat slab roof, two chambers and facilities for cleaning. The valve chamber will have electrically operated 36-inch valves as well as necessary checks. A 36-inch main will lead from the new pumping station to this basin a distance of about two miles, with various branches to mains in other streets which are intercepted. From the basin a 36-inch main, later reduced to 30 inches, will deliver the water to the heart of the city. The illustration on the cover shows the floor of the equalization basin in course of construction and (Fig. 2) shows the work further developed, with the reinforced concrete walls partly erected.
All structures were to be completed by the end of the present year, but it probably will take until the early part of the 1921 season to complete laying the large mains. This schedule of improvement was recommended by the city water commission. The late R. Winthrop Pratt of Cleveland prepared the plans and two local contractors are building the structures and the city water works department will install the mains and meters.
Louis Bogliger, head of the city water works department, is a practical man and has been many years as water works superintendent. His former assistant George Reese is a capable engineer and supervises all detail in the mammoth development.
Work Completed or In Process of Construction
Below is a comparative report of the work already completed or in process of construction, compiled by former Service Director William I. Zink, and submitted recently to William Zillinger, head of the city water commission. Mr. Zink was responsible for pushing the project to completion.
Items and Estimated Cost of Work
Herewith given is a report listing the contractors doing the work together with the particular items and estimated cost of the job:
Contracts Entered Into and Work Completed or Under Construction