All property building laterals using ductile iron pipe shall conform to the following specifications.
(A) Description.
(1) The work specified by this section shall include all supervision, coordination, labor, materials, tools, equipment, services and incidentals necessary to furnish and install new ductile iron pipe and fittings as shown, specified, and required, in association with building laterals, four inches and larger.
(2) In general, work shall include installation of the potable water service, from an existing valve, blow-off assembly, or harnessed end cap, to the facility to receive the water service.
(3) In no case, will a contractor be allowed to tap an existing water main. In the event that the water main must be tapped to allow for installation of the water service, the village shall be notified, and the tap shall be made by the village.
(4) The performance of products depends on proper installation. The purchaser/installer must follow the instructions supplied by or available from, the manufacturer.
(B) Quality assurance.
(1) Qualifications of the manufacturer.
(a) Manufacturer shall have a minimum of five years experience producing ductile iron pipe, fittings, and accessories, and shall show evidence of at least ten installations in satisfactory operation.
(b) Parts interchangeability. It is the intent of these specifications that all materials furnished herein shall be compatible with similar materials of other manufacturers.
(c) The contractor shall obtain each type of material from a single manufacturer.
(d) The village reserves the right to reject the material of a manufacturer if that material fails to meet the requirements or performance criteria of these specifications.
(2) Reference standards.
(a) AWWA C104, American National Standard for Cement-Mortar Lining for Ductile Iron Pipe and Fittings for Water;
(b) AWWA C105, American National Standard for Polyethylene Encasement for Ductile Iron Pipe Systems
(c) AWWA C110, American National Standard for Ductile-Iron and Gray-Iron Fittings, 3-inch through 48-inch, (75 mm through 1200 mm), for Water and Other Liquids;
(d) AWWA C111, American National Standard for Rubber-Gasket Joints for Ductile Iron Pressure Pipe and Fittings;
(e) AWWA C115, American National Standard for Flanged Ductile-Iron Pipe with Ductile-Iron or Gray-Iron Threaded Ranges;
(f) AWWA C150, American National Standard for Thickness Design of Ductile-Iron Pipe G.AWWA C151, American National Standard for Ductile Iron Pipe, Centrifugally Cast, for Water;
(g) AWWA C153, American National Standard for Ductile-Iron Compact Fittings. 3 in. through 24 in. (76 mm through 610 mm) and 54 in. through 64 in. (1400 mm through 1600 mm), for Water Service;
(h) ANSI B16.1, Cast Iron Pipe Flanges and Flanged Fittings;
(i) ANSI B1.20, Pipe, Threads, General Purpose (Inch);
(j) ANSI B18.2.1, Square and Hex Bolts and Screws Inch Series, Including Hex Cap Screws and Lag Screws;
(k) ANSI 818.2,2, Square and Hex Nuts;
(l) ASTM A307, Specification for Carbon Steel Bolts and Studs, 60,000 psi Tensile Strength;
(m) ASTM A354, Specification for Quenched and Tapered Alloy Steel Bolts, Studs and Other Externally Threaded Fasteners;
(n) ASTM A536 Standard Specification for Ductile Iron Castings;
(o) NSF International (NSF) Standard 61;
(p) Underwriter's Laboratories (UL);
(q) International Organization for Standardization (ISO);
(r) Factory Mutual Research Corporation;
(s) 1996 Safe Drinking Water Act.
(C) Materials, general.
(1) All materials must be suitable for use in potable water systems.
(2) All ductile iron pipe, fittings and accessories shall be designed for a working pressure and field hydrostatic test pressure as specified by the village.
(3) All ductile iron pipe, fittings, and accessories must be new materials in first-class condition. Used or recycled materials shall not be allowed, regardless of condition.
(D) Ductile iron pipe.
(1) All pipe mains shall be ductile iron pipe with tyton-type bell and spigot joints (slip-on) meeting AWWA C111.
(2) The pipe shall be in compliance with AWWA C150 and C151.
(3) The pipe shall have a Class 52 barrel thickness,
(4) The pipe shall be cement mortar lined and double seal coated inside and out with an approved bituminous coating one mil thick in accordance with AWWA C104.
(E) Ductile iron fittings.
(1) All pipe main fittings shall be fabricated of ductile iron and shall be of mechanical joint design complying with AWWA C153 and shall be Class 350.
(2) The fittings shall be cement mortar lined and seal coated inside and out with an approved bituminous coating one mil thick in accordance with AWWA C104.
(3) All fasteners used on fittings shall be StandCote SC-1 fluorocarbon coated Fasteners as manufactured by Stand Cote Industries, Inc. or approved equal.
(F) Accessories: caps and plugs.
(1) Conform to the requirements of AWWA C1 10 for material, dimensions, tolerance, tests, markings and other requirements.
(2) Caps and plugs shall be mechanical joint or push-on joint and be furnished with all necessary joint accessories consisting of ductile iron follower glands, plain tipped rubber gaskets, nuts and bolts, unless otherwise specified.
(3) All nuts and tee bolts for mechanical joint accessories shall be fluorocarbon coated as specified herein.
(4) Threaded outlets or taps, (Mueller threads), shall be provided in plugs and caps as specified or required.
(G) Thrust blocking.
(1) All plugs, caps, tees, valves and bends of 22 1/2° or more shall be anchored to prevent movement by providing suitable reaction blocking (thrust blocking). Concrete used for such blocking shall have a minimum 28-day compressive strength equal to 3000 psi.
(2) Prior to placing concrete, the fitting shall be completely wrapped with a six-mil polyethylene membrane to prevent concrete bond to pipe or fittings.
(3) All thrust blocking shall be placed so that fittings, nuts, bolts, and joints are accessible for repairs.
(4) Blocking shall be placed against firm, undisturbed earth.
(5) Area of bearing on the pipe and the ground shall be as recommended by the manufacturer.
(6) As an alternative to thrust blocking, upon the approval of the Superintendent, mechanical joint restraints complying with the following specifications may be used:
(a) Restraint devices for nominal pipe size three-inch through 48-inch shall consist of multiple gripping wedges incorporated into a follower gland meeting the application requirements of ANSI/AWWA C110/A21.10, ANSI/AWWA C151/A21.51, ANSI/AWWA C1507A21.50, ANSI/AWWA C153/A21.53, and ANSI/AWWA C111/A21.11.
(b) The devices shall have a working pressure rating of 350 psi for 3-16 inch and 250 psi for 18-48 inch. Ratings are for water pressure and must include a minimum safety factor of 2 to 1 in all sizes.
(c) Gland body wedges and sedge actuating components shall be cast from grade 65-45-12 ductile iron material in accordance with ASTM A536.
(d) Mechanical joint restraints shall be installed in accordance with AWWA C600.
(H) Installation: general.
(1) The contractor shall coordinate all work with the village.
(2) The contractor shall construct all water lines as recommended by the manufacturer, and as generally accepted by the industry.
(3) All materials incorporated into the work shall be transported, handled, stored, and installed in the work in such a manner as to insure against breakage, cracking or other damage. No such defective material shall be incorporated into the work.
(4) Prior to installing pipe, every precaution shall be taken to ensure that no foreign material enters the pipe.
(5) Ductile iron pipe shall be installed in accordance with the applicable provisions of this subchapter. The water line should be installed to follow the designed lines and grades, and provide a minimum depth of cover of four and one-half feet over the top of the pipe bell.
(6) The trench bottom shall be graded fiat to allow uniform support for the entire length of the pipe. This will require that the trench bottom be prepared with bell holes to allow the full-length support. After the pipe is carefully placed and the pipe layer has assured himself that the pipe is uniformly supported, the trench shall be carefully backfilled by hand to the spring line. Care shall be taken to insure that the material is worked under the haunches of the pipe by hand. The trench shall then be carefully backfilled with the excavator bucket or by front-end loader to a depth of 12 inches of cover over the top of the pipe with excavated material free of stones larger than 3 inches, wood, trash, or other deleterious material.
(7) Proper implements, tools and facilities, shall be provided and used by the contractor for the safe and convenient prosecution of the work, including hoists, ropes, or other means to lower the material into the trench. Under no circumstances shall pipe, valves, specials, etc., be dropped or dumped into the trench.
(I) Ductile iron pipe - underground installation.
(1) The water line shall be installed in accordance with applicable sections of AWWA C-600 and this specification.
(2) Every precaution shall be taken to prevent foreign material from entering the pipe at any time.
(a) Excess dust, dirt, or oil on the inside of the pipe shall be removed by an approved means prior to installing the pipe.
(b) If the pipe laying crew cannot get the pipe into the trench without getting dirt into it, the ends shall be covered with a heavy tightly woven canvas bag, which shall be left in place until the connection is to be made to the adjacent pipe.
(c) At times when pipe laying is not in progress, the open ends of pipe shall be closed with a watertight plug or other approved means.
(d) If water is in the trench when work is to resume, the seals shall remain in place until the trench is pumped completely dry (these provisions shall apply during the noon hour as well as overnight).
(3) Pipe shall be laid with the bell end facing in the direction of laying, unless otherwise directed by the village.
(4) Installation shall be made in accordance with the recommendations of the manufacturer and as directed by the village. The contractor shall provide the village with a copy of the manufacturer's instructions for making joints and installing pipe. In assembiing the pipe, the contractor shall not deflect the ductile iron pipe joints horizontally or vertically more than five degrees for mainline pipe. Fittings shaft be used to accomplish any change in alignment that exceeds the standard.
(5) Pipe cutting shall be done in a neat and workmanlike manner taking care not to damage the pipe. Cuts shall be smooth and at right angles to the axis of the pipe. Bevel ends as per manufacturer's recommendations.
(6) Each joint shall be assembled with no less than two bronze wedges approved for establishing electrical continuity through the joint.
(J) Sampling taps.
(1) To facilitate the testing and subsequent chlorination and bacteriological sampling, sampling taps shall be installed.
(2) The sampling tap shall consist of a corporation stop installed in the main, with a soft copper pipe from the corporation to a point two feet above the surface. For ease of operation a curb stop may then be installed with a short soft copper gooseneck following the curb stop.
(3) At the completion of all testing, the sampling taps shail be properly abandoned. To do so, shut off the corporation stop, remove the copper riser, replace the plastic cap on the corporation stop and backfill.
(K) Testing and disinfection. All testing and disinfection of ductile iron service line shall be done in accordance with all applicable sections of the AWWA Standards, specifically AWWA C600, and AWWA C651, and the Cattaraugus County Health Department.
(Ord. 2-2009, passed 3-23-2009)