Rejection of Quote - Studebaker Fountain Water Improvements Proj No. 121-032 - Culligan Water

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Version 08/25/2021 Page - 14 Public Works Quote e. Spoils and excess drilling fluid shall be recovered by use of a vacuum system mounted on a vehicle for removal of the spoils. Spoils may not be discharged into sewer or storm drains. The Contractor is responsible for disposal of spoil, excess drilling fluid and excess excavated material. f. Equipment shall be fitted with a permanent alarm system capable of detecting an electrical current. This system will have an audible alarm to warn the operator when the drill head nears electrified cables within a safe operating distance. g. Execution (i) Work shall be performed in accordance with AREMA and NUCA guidelines (ii) All existing utilities to be crossed by the directional drilled service lines shall be potholed and the depth and location field verified by the contractor. The contractor shall adjust the routing of the drilled service lines as required to successfully complete the installation and avoid conflict with existing utility infrastructure as required at no additional cost to the project. Any route adjustments made shall be documented by as-built plans and the engineer shall be notified. (iii) Intercept and divert all groundwater away from all excavation areas, pits and pipe installation areas. (iv) Excavate approach trenches and pits as site conditions and proposed construc tion requires. 5. Valves a. Gate Valves (i) Buried gate valves 4” and larger shall be full ductile iron body, non-rising stem, fusion bond epoxy coated and resilient seat gate valves. Valves shall meet the requirements of ANSI/AWWA C509 and shall have mechanical joint ends. Mechanical joints and joint accessories shall meet the requirements of ANSI/AWWA/C111/A21.11. Valve opening direction shall be consistent with operation of existing valves in the waterworks in which the valves are installed, unless otherwise directed by the Town’s authorized representative, valves shall open counter clockwise. (ii) Three-inch buried gate valves shall be iron body, non-rising stem gate valves. Valves shall meet the requirements of ANSI/AWWA C509 except ends shall be screwed. Screwed ends shall meet the requirements of ANSI B16.3. Valve opening direction shall be consistent with operation of existing valves in the waterworks in which the valves are installed, unless otherwise directed by the Town’s authorized representat ive. (iii) Gate valves 4” and larger installed above ground or in structures shall be resilient seat, iron body, outside screw, and yoke gate valves. Valves shall meet the requirements of ANSI/AWWA C509, except those parts of ANSI/AWWA C509 only applicable to non-rising stem gate valves and wrench nuts. Outside screw and yoke gate valves shall have flange joint ends and malleable iron handwheels. Flange joints and accessories shall meet the requirements of ANSI/AWWA C110. Nuts and bolts shall be cadmium plate d. Gaskets shall be full face and shall be red rubber or equal. (iv) Gate valves smaller than 4” installed above ground or in structures shall be resilient seat bronze, 125 lb. S.W. P. double disc, screwed-in bonnet, rising stem, inside screw gate valves with screwed ends and malleable iron handwheels. Valves shall meet the requirements of Federal Specification WW-V-54d for Class A, Type III valves. (v) The following requirements apply to all gate valves: Wedge shall be ductile iron, fully encapsulated in synthetic rubber except of guide and wedge nut areas. Synthetic rubber shall be molded in place and bonded to the wedge; mechanical fasteners are not allowed. Stem shall be sealed by at least two O-rings; contained within the stuffing box (grooving of stem O-rings is not allowed). All stem seals shall be replaceable with the valve wide open and while subjected to full rated pressure. Valve body and bonnet shall be coated, inside and out; with fusion-bonded epoxy. Bonnet and stuffing box bolts and nuts shall be type 18-8 stainless steel and must be installed by the manufacturer. (vi) Gate valves shall be manufactured by Mueller, Clow or American Flow Control. (vii) Gate valves shall be configured for installation within 3 feet of adjoining fittings.