CHAPTER 2
WATER LINE CONSTRUCTION SPECIFICATIONS
WATER LINE CONSTRUCTION SPECIFICATIONS
SECTION:
9-2-1: Compliance With Regulations
9-2-2: Plan And Construction Requirements; State Approval
9-2-3: Materials Required
9-2-4: Method Of Construction
9-2-5: Special Conditions, Water Line Near Sewer Line
9-2-6: Application To Public Water Lines Only
9-2-7: Violations; Penalties
A person desiring to construct a water line extension within the corporate limits of the city, which water line will be turned over to the city for operation and maintenance upon completion, shall be required to construct said water line in accordance with the specifications set forth in this chapter. (Ord. 14.04)
A. Plan Required; Specifications:
1. Before any water line is installed in the city, a plan and profile of the proposed installation shall be submitted to the city council for their consideration.
2. The plan will show the location of the water line in relation to the centerlines of the streets, location of all valves and the location of fire hydrants. The location of valves and fire hydrants shall be dimensioned from property lines of the block or centerlines of the streets. The profile shall show the grade to which it is proposed to place a line below the streets. All water lines shall be placed sufficiently deep so that a minimum of six feet (6') of cover from the finished grade of the street is obtained. Should the street in which the line is being laid not be to proper grade at the time of construction, it will be required to obtain from the engineer representing the city or the city superintendent the finished grade of the street and the water line shall be laid sufficiently deep so that a six foot (6') minimum cover is obtained after the street has been brought to proper grade.
B. Plan Submitted To State; Approval Required: The plan and profile shall be complete enough so that it can be submitted to the Montana state department of public health and human services for their approval prior to construction. In no case will construction be started before written approval is obtained from the Montana state department of public health and human services and the city council.
C. Supervision; Inspection:
1. Any water line installation made in the city shall be under the supervision of the engineer representing the city or the city superintendent. The engineer or city superintendent shall approve the layout of the work and shall be responsible to see that the water line is being laid to the grades specified on the plans.
2. During construction, it shall be required to have an inspector or the city superintendent on the work. The inspector or the city superintendent shall be an employee of the engineer representing the city or an employee of the city. The inspector or city superintendent shall be authorized to inspect all work done and all materials furnished. Such inspection may extend to all or any part of the work and to the preparation, fabrication or manufacture of the materials to be used. The inspector or city superintendent will not be authorized to revoke, alter or waive any requirements of the specifications; however, he is authorized to call attention to any failure of the work or materials to conform to these specifications. He shall have the authority to revoke materials or suspend the work until any question at issue can be referred to and decided by the engineer or city superintendent. The cost of employing the inspector, engineer or city superintendent shall be borne by the person making said improvements.
D. Pressure Test: After the water line has been laid and partially backfilled, all joints, fittings and valves shall be subjected to a hydrostatic pressure test of fifty percent (50%) above the normal operating pressure. The "normal operating pressure" is defined as the maximum pressure in the water system in the city. All such tests shall be conducted in the presence of the engineer, inspector, and/or city superintendent. (Ord. 14.04; amd. Ord. 2.32)
E. As Constructed Drawings: Before the water line will be accepted by the city council, "as constructed drawings" shall be submitted to the city council. These drawings shall be prepared on regular plate A 4 x 20 plan and profile paper and shall be prepared in India ink to serve as a permanent record for the city. These final drawings shall show the final grade and alignment of the water line as constructed and the final location of all valves in relation to property lines or street intersection. (Ord. 14.04)
A. Pipe:
1. Any pipe installed in the city shall be class 150 cast iron and shall conform in regard to dimensions, weights and tolerances to federal specifications for pipe, water, cast iron (bell and spigot) no. WW-P-421. The mechanical joint and accessories shall conform in regard to dimensions, weights and tolerances to American standard specification A21.11.
2. The use of asbestos cement pipe in installations within the city is to be allowed only after careful study in each specific instance to determine the suitability of such material for the particular installation under consideration, and in every instance where a majority of the council determines that concrete asbestos pipe is not suitable to be used in an installation, it shall not be installed or accepted as a part of the water distribution system of the city.
B. Fittings: All pipe fittings installed in the city shall be class 250 and conform in regard to dimensions, weight and tolerances to American standard specifications A21.10 for short body cast iron fittings.
C. Valves And Valve Boxes:
1. Any gate valves installed in the city shall be iron body, full bronze mounted, parallel seat, double gate valves of some standard make. Valves shall be thoroughly tested to three hundred (300) pounds psi and shall be suitable for working pressure of not less than one hundred fifty (150) pounds psi. There shall be no iron against iron construction in the wedging mechanism or the moving parts of the valve when closed. They shall be of a design that will ensure, in closing, a perfect contact between the gates and the seats and shall be easily operated by hand. Each valve shall have gates moving parallel to their respective seats with a bronze or noncorrodible metal wedging device between them, so arranged that it acts upon gates equally. (Ord. 14.04)
2. Names of the manufacturer of the valves being furnished shall be submitted to the engineer or city superintendent for his approval. (Ord. 14.04; amd. Ord. 2.32)
3. Any valve boxes installed in the city shall be cast iron adjustable (screw type) valve boxes with a minimum four inch (4") diameter shaft. The valve boxes shall be of sufficient length to allow adjustment to the finished surface grade of the street. The covers furnished on the boxes shall have the word "WATER" cast on them.
D. Hydrants:
1. Hydrants installed in any water line in the city shall be Corey type as manufactured by Pacific States Cast Iron Pipe Company, Provo, Utah.
2. Hydrants installed on four inch (4") water lines shall be provided with two inch (2") hose connections. Hydrants installed on six inch (6") or larger water lines shall be provided with two inch (2") hose connections and one six inch (6") steamer connection.
3. The hydrants shall be so constructed that all the working parts may be removed through the head without the use of special wrenches.
4. All hydrants furnished shall be provided with a sidewalk breaking flange using drilled steel bits of a proper size to allow for easy shearing and optimum holding. The hydrant shall be of sufficient length that the sidewalk breaking flange is just above the surface of the ground. The operating nut shall be pentagon (5 sided) in shape and shall be finished with a slight taper to one and one-half inches (11/2") from point to flat. (Ord. 14.04)
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