(A) Any and all public water systems installed within the legal jurisdiction of the village shall be constructed in accordance with the Standard Specifications for Water and Sewer Main Construction in Illinois, latest edition.
(B) The standard specification shall be superseded by the specifications provided herein.
(1) Water mains.
(a) Scope.
1. The work covered by this section consists of furnishing all plant, labor, equipment, tools, services and materials, and performing all operations required to execute the water main work complete, in strict accordance with this specification and the applicable drawings and subject to the terms and conditions of the contract; and
2. Construct all water main work of sizes and materials, and at locations shown on the drawings; provide fittings and appurtenances, all as indicated on the drawings, and as herein specified.
(b) Materials.
1. Unless otherwise noted on the drawings, all water main of ductile iron pipe shall have a cement-mortar lining conforming to ANSI A21.4 (AWWAC104).
a. Ductile iron pipe shall be designed in accordance with ANSI A21.50 (AWWA C150 - Latest Revision) using 60,000 psi tensile strength, 42,000 psi yield strength and 10% elongation. All pipe shall have a minimum gas pipe as shown below, three and one-half feet to six feet cover, trench condition one, flat bottom, no blocks on tamped backfill and at least 100 psi water hammer allowance and two to one (2:1) factor of safely. In no case shall the wall thickness be less than the following: nominal pipe diameter inches pressure class.
b. Ductile iron pipe for aerial installations shall have flanged joints unless otherwise shown on the plans. Barrels of ductile iron pipe with screwed flanges shall conform to ANSI A21.51 (AWWA C151). Flanges shall be faced and drilled to ANSI Class 125 standard template for use with either ANSI A21.10 (AWWA C110) or B16.1 flanged fittings. Gaskets for flanged pipe shall be one-sixteenth inch thick, full faced, rubber or neoprene. Bolts for flanged joints shall be of galvanized steel.
2. Polyvinyl chloride (PVC) pipe.
a. Pipe shall conform to AWWA C900, Standard Dimension Ratio (SDR) 18, Laying Condition Class C.
b. A #12 TW tracer wire shall be laid with all PVC pipe detail on plans and as directed by the Engineer. The main tracer shall be continuous throughout. At each fire hydrant and house service, a #12 TW service wire shall be connected to the main tracer and to the fire hydrant or house service.
c. The connection at the main tracer shall be with a 3M #562 (yellow) plastic self stripping pigtail connector. At the hydrant shoe or house service tapping saddle, the connection may be done with a brass pipe, or grounding, clamp with brass screws, or similar devise approved by the Engineer.
d. All connections shall be taped and sealed with electrical mastic 4-12 350 and Scotch #22 10 E-2 seal.
(c) Fittings. Fittings for ductile iron and PVC water main shall be of class or pressure rating not less than that of the connecting pipe and shall conform to the latest revision of the following specifications:
1. ANSI A21.10 (AWA C153) gray iron and ductile iron fittings, three-inch through 48-inch;
2. ANSI A21.11 (AWA C11) rubber gasket joints for cast iron and ductile iron pressure pipe and fittings; and
3. All fittings shall be cement mortar lined in accordance with ANSI A21.4 (AWA C104).
(d) Joints and couplings. Joints for ductile iron pipe shall be either the mechanical or push- on type conforming to the following requirements.
1. Mechanical joints shall be of the stuffing box type with gasket, cast iron gland and cast iron bolts and shall conform to ANSI A21.11 (AWA C11).
2. Push-on joints shall be of a type employing a single molded rubber gasket to effect joint seal. Joint and gasket shall conform to ANSI A21.11 (AWA C11).
3. Couplings for PVC plastic pipe shall be of the elastomeric-gasket type and shall conform to ASTMD3139.
(e) Inspection. Inspection of pipe and materials will normally be made at point of destination, however, the Engineer reserves the right to provide factory inspection as deemed necessary.
(2) Gate valve.
(a) Notice. The general conditions, special conditions and all other herein bound and documents accompanying documents are part of these specifications and of the contract. Submission of proposal implies that the bidder is fully conversant with all requirements of all above mentioned.
(b) Scope.
1. The work covered by this section consists of furnishing all plant, labor, equipment, tools, services and materials and performing all operations required to execute the gate valve work complete, in strict accordance with this specification and the applicable drawings and subject to the terms and conditions of this contract.
2. The gate valve work specified herein applies to valves installed underground on distribution and transmission mains. Valves to be installed in treatment plant pumping station or similar facilities shall be as specified in the pipe section of the specifications.
(c) Shop drawings. Before commencing work, submit complete shop drawings and illustrations for work in this section for Engineer’s approval. Refer to general conditions for detailed information regarding shop drawings requirements.
(d) Gate valves.
1. Valve castings shall be made from superior quality of iron, remelted in a cupola or air furnace; tough and of even grain.
2. Valves shall open in the same direction as those installed in the owner’s existing equipment. In the absence of existing facilities, new gate valves shall open to the left (counterclockwise). Unless specifically noted on drawings or specified otherwise, valves shall have hub ends, mechanical joint ends or flanged ends. Hydrant auxiliary valves may be provided with one flange end bolting to the hydrant only where so specifically noted on the drawing or directed in writing by the Engineer. Normally, such valves shall be of the bell or mechanical joint type installed in the connecting lead between the hydrant and the main. All other valves installed in underground pipe lines shall have hub ends or mechanical joint ends.
3. All gate valves shall be fully mounted with bronze or other suitable, non-corrodible metal, of the double disc type, with non-rising stems. Fit valves three to 12 inches, nominal size, with two-inch square, cast iron operating nut, mounted directly on the stem. Valves 16 to 48 inches, nominal size, shall be fitted with bevel gears (without gear or grease cases), rollers and tracks and non-rising stem bypass valves, as per AWWA Specification C500, unless otherwise shown on drawings.
4. All valves shall conform to requirements of AWWA C500, latest revision. Valves three to 12 inches, nominal size; suitable for pressures of at least 200 psi. Valves 16 to 48 inches, nominal size; suitable for pressures of at least 150 psi.
(e) Valve boxes. Provide all valves three to 12 inches inclusive, nominal size, and all bypass valves with screw top adjustable metal boxes, approximately five inches in diameter, constructed so that removable cover will not be thrown out by travel over same. Provide boxes with suitable hoods at base of lower section to relieve any strain superimposed on valve bonnet.
(f) Valve vaults. Provide all valves 16 to 48 inches, nominal size, with standard manhole enclosure as detailed on the drawings.
(g) Foundation.
1. Set valves securely on concrete or stone foundation, laid on solidly compacted ground. Foundation thickness shall be at least eight inches; volume, one cubic foot minimum concrete, if used, shall be Class Q as specified in “concrete” section of the specifications.
2. Valves shall be set at an elevation conforming to the height of connecting pipe so that there is no strain on joints.
(h) Tapping sleeves and crosses.
1. Provide tapping sleeves and gate valves, also tapping crosses, and gate valves where pressure connections to existing facilities are shown on drawings. Tapping sleeves, similar and equal to Mueller H-610, H-611 or H-615 or Clow F2552 or F-2562. Tapping crosses, similar and equal to Mueller H-710, H-711 or H-715 or Clow F-2565 or F-2567. Gate valves for use with tapping sleeves or crosses; similar and equal to Mueller H-662, H-667 or H-642, or Clow F-2550 or F-2560.
2. Install sleeves and valves in water mains as per manufacturer’s instructions and without shutting off pressure in existing mains.
(i) Gate valve markers. Where so indicated on the drawings, gate valves shall be witnessed by permanent reinforced concrete posts of size and shape as detailed and at the locations shown. Set posts in or as near fence and valve box tops as possible, with lettering on post facing valve box top. For other conditions, set and witness post markers as directed by the Engineer.
(3) Fire hydrants.
(a) Notice. The general conditions, special conditions and all other herein bound and accompanying documents are part of these specifications and of the contract. Submission of proposal implies that the bidder is fully conversant with all requirements of all above mentioned documents.
(b) Scope. The work covered by this section consists of furnishing all plant, labor, equipment, tools, services and materials, and performing all operations required to execute the fire hydrant work complete, in strict accordance with this specification and the applicable drawings and subject to the terms and conditions of the contract.
(c) Shop drawings. Before commencing work, submit complete shop drawings and illustrations for work in this section for Engineer’s approval. Refer to general conditions for detailed information regarding shop drawings requirements.
(d) Hydrants.
1. Fire hydrants shall be provided and installed of a size and in the number indicated on the drawings, with valve openings and nozzles as follows:
Hydrant Size Approximate Connection | Valve Opening Water Main (2 Required) | Lateral Nozzles (1 Required) | Hose Pumper Nozzle | |
6” | 6” | 6” or 8” | 2-1/2” | 4-1/2” |
5” | 5” | 6” | 2-1/2” | 4-1/2” |
4” | 4” | 4” | 2-1/2” | None |
2. Where hydrants are shown on the plans to be connected directly to the hydrant lead, fit all hydrants with bell or mechanical joint ends, compatible with the type of hydrant lead pipe. Where hydrants are shown on the plans to be connected directly to auxiliary gate valves, fit hydrants with flange ends for connection to the auxiliary gate valves. Such auxiliary gate valves shall be fitted with flange end for connection to the hydrant shoe and bell or mechanical joint end to connect to the hydrant pipe lead. Auxiliary gate valve and box shall conform to requirements specified in division (B)(2) above.
3. Hydrants shall be of the compression or gate type, with preference given to valve types seating with the pressure and shall have two positively operated drain valves both being an integral part of the main valve. The hydrant body shall be of the “breakable” type so designed that neither the lower portion of the barrel, nor the stem, shall be damaged if the hydrant is broken and so designed that repairs may be effected by easily replaceable components.
4. The hydrant body shall be of cast iron, all castings of superior quality iron, remelted in a cupola or air furnace, tough and of even grain. Unless otherwise noted on the drawings, all hydrants shall have bury of four and one-half feet when measured from bottom of the connecting pipe to the ground line beading on the hydrant barrel.
5. Hose nipples, hydrant seat, drip valve and stuffing box shall be of bronze or other suitable non-corroding metal.
6. Hose threads on all hydrants shall be interchangeable with those now in service in owner’s system. Hose nozzles shall be protected with approved weather caps.
7. Hydrant valve shall be faced with suitable, yielding material, such as rubber or leather; except that, on those of the gate type, bronze ring may be used.
8. All hydrants; conform to AWWA Specification C502, latest revision.
9. Hydrants shall be provided with a one and one-fourth-inch bronze pentagon operating nut and shall be open in same direction as owner’s existing equipment or if no hydrants exist shall open to the left (counter-clockwise).
(e) Foundation. Each hydrant shall be supported on a foundation at least 12 inches square and eight inches thick of stone or solid concrete, set firmly on solid undisturbed earth. The trench around the hydrant shall be at least three feet in diameter to permit proper installation of the foundation and placement of the drainage media hereafter specified.
(f) Drainage. Provide adequate drainage for hydrants when closed, by filling circular space around hydrant with clean, coarse, crushed stone or gravel (free from foreign matter), graded from one-fourth inch to one and one-half inches. Place crushed stone or gravel carefully, so as not to displace hydrant, valve or connecting piping. The drainage fill material shall extend to the limits shown on the drawings, but in any event shall consist of a minimum of two cubic yard of crushed stone or gravel. No connection shall be made from the drainage pit to any sewer or underground drainage conduit.
(g) Installation. Before setting, clean hydrants completely free of dirt and other foreign matter. Set hydrants solidly with sufficient concrete-blocking behind barrel and behind the connection to the water main to prevent movement of pipe in joints or of hydrant.
(2007 Code, § 34-7-10)