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I <br /> CITY OF EVERETT SPECIAL PROVISIONS <br /> 9-30.2(2)B For Earthquake Resistant Pipe <br /> Provide natural or black color polyethylene encasement in tube-form three layer <br /> co-extruded linear low-density polyethylene fused into a single minimum thickness <br /> of eight mils, and meeting the requirements of ANSI/AVWVA C105. Infuse the <br /> inside polyethylene surface that will be in contact with the ductile iron pipe with a <br /> blend of anti-microbial compounds to mitigate microbiologically influenced <br /> corrosion and a volatile corrosion inhibitor to control galvanic corrosion. <br /> Revise 9-30.1(3) Vacant to read as follows: <br /> 9-30.1(3) Earthquake Resistant Ductile Iron Pipe System <br /> 1. Meet all requirements of 9-30.1(1). <br /> 2. Meet all applicable requirements of AWWA C150 (design), AVVWA C151 <br /> (manufacture), AWWA C104 (lining), C111 (joints), AWWA C153 <br /> (fittings), AWWA C105 (polyethylene encasement), and AWVVAC600 <br /> (installation). <br /> 3. Size the ductile iron pipe in inches. <br /> 4. Meet defined classifications detailed below as shown in ISO 16134 <br /> Earthquake Resistant Ductile Iron Pipe and Subsidence-Resistant Design. <br /> Verify the seismic design by an independent seismic lab such as Cornell <br /> University or an Owner-approved alternative. <br /> a. All ductile iron pipe and fittings joints shall meet or exceed 3dKN pull out <br /> strength or category A. — <br /> b. Designated Earthquake System piping shall meet or exceed a minimum <br /> deflection of 7.5 degrees or category M2 for sizes 6" 12". <br /> c. Designated ductile iron Earthquake System piping will have a minimum <br /> strain relief of plus or minus 1% or category S1. <br /> 5. Provide designated earthquake system piping meeting the minimum <br /> requirements of A-M2-S1 in accordance with ISO 16134 for diameters up to <br /> and including 12 inches. <br /> 6. Provide expansion spigot in the assembly having a minimum of two assembly <br /> stripes, one indicating fully contracted position and one indicating the <br /> midpoint of extension. <br /> 7. Coat the exterior of the pipe the network of ductile iron pipe connected to the <br /> Earthquake Joint System coated with a minimum mass of 200 g/m2 of pipe <br /> surface area layer of arc-sprayed zinc. <br /> a. Provide the coating system conforming in every respect to ISO 8179-1, <br /> "Ductile Iron Pipes — External Zinc-Based Coating — Part 1: Metallic Zinc <br /> with Finishing Layer," second edition 2004-06-01, with a top coat of <br /> approved materials. <br /> 8. Provide "American Field Flex-Ring®Joint Pipe", or City approved equal. <br /> 9-30.2 Fittings <br /> 9-30.2(1) Ductile Iron Pipe <br /> Supplement 9-30.2(1) by adding the following: <br /> For Earthquake Resistant Ductile Iron Pipe provide push-on, boltless fittings meeting <br /> the requirements of AVVWA C110 or C153. Provide "American Flex-Ring® Fittings", or <br /> City approved equal. <br /> Delete 9-30.2(2) Vacant and substitute the following: <br /> 1 9-30.2(2) Earthquake Joint System Ductile Iron Pipe <br /> (******) <br /> Provide pre-assembled, machined ductile iron casting designed to allow for minimum <br /> Iof 2.4 inches of expansion and contraction in either direction, providing a minimum of <br /> Water Main Improvement S Division 9—MATERIALS January 29, 2018 <br /> WO No.—UP3664 SP—175 <br />