Water systems shall have sufficient number of outlets and shall be of sufficient size to furnish adequate domestic water supply, to furnish fire protection to all lots, and to conform with the city’s Master Water Plan.
(A) All water mains shall be constructed in streets, easements or alleys.
(B) All water mains 12-inch and smaller may be either gray or ductile cast iron pipe, Class 150 unless otherwise specified, with single rubber gasket joint, shall have a cement mortar lining of the “Enameline” type, or proved equal, and shall have a minimum cover of 42-inches. Water mains 14-inch and larger may be either gray or ductile cast iron pipe, Class 150 minimum, with cement mortar lining or reinforced concrete steel cylinder pipe, Class 150 minimum.
(C) Ductile iron pipe will be required in all bores, in unstable soil conditions (expensive clays, unstable subsoil) in or near creeks or where lines must be installed at shallow depths (less than 36 inches).
(D) Polyvinyl chloride (PVC) pipe may be installed for water mains in the public water utility system.
(1) Polyvinyl chloride (PVC) pipe and fittings.
(a) PVC pipe shall be new, manufactured in the United States of America, and shall be blue in color PVC pipe shall conform to the current specifications of AWWA C900, PVC pipe with cast iron outside dimensions and with rubber ring joints. PVC water pipe shall be listed by Underwriters Laboratories and approved for use in cities and towns of the state by the State Board of Insurance. The rigid PVC pipe shall bear the seal of approval (or “NSF” mark) of the National Sanitation Foundation Testing Laboratory for potable water pipe. Provisions must be made for contraction and expansion at each joint with a rubber ring, and an integral thickened bell as part of each joint. Pipe and fittings must be assembled with a non-toxic lubricant. Pipe shall be made from NSF approved class 12454-A or B PVC compound conforming to ASTM resin specification D1784 PVC pipe shall be Class 200 (SDR 14) and meet the physical dimensions as shown on the following list:
Nominal Size (Inch) | Outside Diameter (Inch) | Class 200 (SDR14) Minimum Wall Thickness (Inch) |
4 | 4.08 | 0.343 |
6 | 6.90 | 0.493 |
8 | 9.05 | 0.646 |
(b) PVC pipe shall be designed for 200 psi water pressure plus 35 psi surge. Service connections may not be made by direct tapping for service lines. A brass tap saddle shall be used to tap service lines. Fittings may be mechanical joint or rubber O ring slip joint constructed of cast iron, ductile iron or PVC material. Valves shall be anchored with concrete blocking and straps. Concrete thrust clock will be used as required at all bends.
(2) PVC pipe special embedment.
(a) PVC pipe shall be placed on a four-inch layer of crushed rock or rounded gravel bedding material.
(b) The trench shall be backfilled with a minimum of six inches of sand on the sides and 12 inches (loose) over the top of the pipe and consolidated to a minimum of 90% standard Proctor density. This is basic-Class “B” as defined by ASCE Manual No. 37 and AWWA C900-75. Final backfill is to conform to § W.4.16.1. or § W.4.16.2. The Class “B” embedment material is further defined as follows:
1. Ninety-five percent of material pass three-fourths screen; and
2. Ninety-five percent of material retained on No. 4 screen.
(c) Tracer tape, blue in color, similar to Terra Tape “D” “DETECTABLE “ as supplied by Griffolyn Co., Inc., Houston, Texas shall be installed in the backfill material over the top of the PVC-non metallic pipe accordance with the manufacturer’s recommendations.
(E) Fittings shall be either gray or ductile cast iron with mechanical joints and shall be cement lined and coated inside and out with a seal coat of bituminous material, unless the pipe material is reinforced concrete steel cylinder in which case special fittings shall be furnished.
(F) The term
RESIDENTIAL PROPERTY within the means of this chapter shall mean any tract of land developed for the purpose of single-family or two-family domestic living, but not excluding educational or religious institutions. The term COMMERCIAL TRACT within the meaning of this chapter shall mean any tract of business or nonresidential property and residential uses of including but not limited to multi-family complexes, residential attached, condominiums religious, light and heavy industry, and all other classifications of properties other than single-family residential; however, nothing herein contained shall be construed as limitation or repeal of the definitions set forth in § 1.12, page 5 of the Fire Prevention Code.
(G) Location of fire hydrants.
(1) Fire hydrants shall be placed on block corners or near the center of the block as to place all of every lot within a radius of 500 feet in residential areas, but under no circumstances shall a hose lay of more than 500 feet be made from the fire hydrant to cover all of every lot within the subdivision or tract under development.
(2) The owner of commercial tracts of real estate located in the city shall cause to be installed upon the premises’ fire hydrants in a radius of 300 feet in commercial or industrial areas, but under no circumstances shall a hose lay of more than 400 feet be made in order to adequately afford fire protection to the building or buildings.
(H) The owner of any commercial tract of property contemplated in this chapter on which fire hydrants and water lines have been installed shall by reason of the installation, grant an easement to the city whereby the Fire, Police and Water Utilities Departments of the city shall have ingress and egress to, from and across the property to any location on the property when necessary to extinguish a fire or to prevent the occurrence of a fire or to maintain, service and inspect the fire hydrants and water lines that may be installed or when access to and from the property is essential to the preservation of life or property.
(I) All fire hydrants shall have one pumper nozzle and two hose nozzles with the city’s standard threads, shall have a main barrel valve opening of not less than five inches, and shall be placed on mains of not less than six inches in diameter. Six-inch gate valves shall be placed on all fire hydrants leads.
(J) (1) All fire hydrants shall be painted by the developer in accordance with the size of the line constructed.
6-inch line | Bright red |
8-inch line | Royal blue |
10-inch and larger | Standard yellow |
(2) The top and outlet caps of all hydrants installed shall be painted with a machine implement paint or approved equal. The body of all hydrants shall be painted a silver color with an approved aluminum paint.
(Ord. 459, passed 12-17-1985)