B.08.02 - Spec Changes Amendment 0001 - W912HP21R0002 - FY21 Winding Woods Reach Water LinesAmendment.pdf

LMRWA WINDING WOODS REACH COE

07/30/21 responsible for dechlorinating and discharging water associated with testing in accordance with all applicable SCDHEC environmental and stormwater control regulations. No additional compensation shall be made by the Government or any agent thereof for delays associated with this coordination work. Pipeline contractor shall be solely responsible for putting pipeline into successful operation including all additional requirements implied.

1.3 SYSTEM DESCRIPTION

This specification covers the requirements for above and below grade water transmission pipe, pipe supports, fittings, equipment and accessories.

1.3.1 Performance Requirements

The pressure ratings and materials specified represent minimum acceptable standards for piping systems. The piping systems shall be suitable for the services specified and intended. Each piping system shall be coordinated to function as a unit. Flanges, valves, fittings and appurtenances shall have a pressure rating no less than that required for the system in which they are installed.

1.3.2 Buried Piping Systems

Piping systems shall be suitable for design conditions, considering the piping both with and without internal pressure. Consideration shall be given to all operating and service conditions both internal and external to the piping systems. All buried DIP and fittings shall have an arc-sprayed zinc coating on the exterior surfaces in accordance with AWWA C151. The zinc coating shall be applied at 200 g/m^2 of pipe surface area. A finishing layer topcoat shall be applied to the zinc. The mean dry film thickness of the finishing layer shall not be less than 3 mils with a local minimum not less than 2 mils. All zinc coating shall be applied at the manufacturer's facility and conform to ISO 8179 standard. DIP shall be encased in Polyethylene in accordance with AWWA C105 only where indicated on the Drawings.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Pipe and Equipment; FIO

Equipment shop drawings and support system detail drawings showing piping systems and appurtenances, such as mechanical joints, valves, local indicators and hangers, including a complete list of equipment and materials. As-built drawings showing pipe anchors and guides, and layout of piping systems relative to other parts of the work including clearances for maintenance and operation.

As-built piping and instrumentation diagrams (P&IDs) identifying and labeling equipment, instrumentation, valves, vents, drains, and all other inline devices.

SECTION 02 60 00 Page 7 kbair Arrow kbair Arrow kbair Arrow kbair Arrow kbair Arrow kbair Arrow kbair Arrow kbair Callout (refer to paragraph 2.4 for corrosion control requirements) section shall be designed to be at least as hydrostatically strong as the pipe barrel and meet the requirements of AWWA C905. The joint design shall meet requirements of ASTM D3139, under both pressure and 22 inches Hg vacuum.

2.3 PIPING JOINTS

2.3.1 Ductile Iron Joints

Joints shall have a working pressure rating for liquids equal to the pressure rating of the connected pipe. Dielectric fittings or isolation joints shall be provided between all dissimilar metals.

2.3.2 Mechanical Joint Fittings

Mechanical joint fittings shall conform to AWWA C153, AWWA C110 and AWWA C111, as applicable. Gaskets, glands, bolts and nuts shall be furnished in sufficient quantity for the complete assembly of each mechanical joint. Glands shall be ductile iron with an asphaltic coating. Gaskets shall be vulcanized synthetic rubber or Styrene Butadiene Copolymer (SBR), reclaimed rubber is not acceptable. Housings shall be composed of ductile iron, and gaskets of molded synthetic rubber shall be used. Bolts and nuts shall be carbon steel conforming to ASTM A 307 , Grade B. Bolted mechanical joints may only be used for joints that are not in areas where the drawings indicate that restrained joint is required. Mechanical joint connections requiring restraint as indicated on the drawings shall utilize a mechanical joint restraint system such as Megalug Series 1100, Ford UFR Series 1400, Sigma One-Lok or A.E. bolt heads are to be "auto torque" twist off.

2.3.3 Push-on Joints

Push-on type joints unless otherwise specified or shown on the Drawings shall conform to applicable requirements of AWWA C111. Each push-on joint shall be supplied complete with single rubber gasket and lubricant.

Gaskets shall be compatible with joint design and comprised of vulcanized synthetic rubber or SBR, reclaimed rubber is not acceptable. Lubricant shall be specifically formulated for use with push-on joints and shall be non-toxic, odorless, tasteless and shall not support bacteria growth.

Gasket and lubricant shall be supplied and recommended by pipe manufacturer.

2.3.4 Restrained Joint Ductile Iron Pipe and Fittings

Restrained joints shall conform to the applicable requirements of AWWA C111, and be designed for a working pressure equal to the pipe rating with a safety factor of 1-1/2. When using ductile iron pipe with restrained joints, field cuts shall be supplied with a lock ring complete with all required accessories as required by manufacturer's recommendations, procedures and/or installation instructions. Restrained pipe shall consist of either "Megalug" type assemblies (at valves and fittings) or the pipe manufacturer's welded-ring boltless type which includes ductile iron locking segments and rubber or neoprene retainers such as ACIPCO "F lex-Ring" US Pipe "TR-Flex", Griffin Pipe "Snap-Lok", or approved equal.

Field flex ring type restrained joints (i.e. no welded bead on plain end) shall not be permitted unless specifically approved by the Contracting Officer. Restrained plugs shall be installed as shown on the Drawings.

These plugs shall be watertight and capable of withstanding the test pressure specified herein. After testing, the plug shall remain in

SECTION 02 60 00 Page 12 kbair Callout Amarillo Fast-Grip gasket, Flex-Ring, Field Flex-Ring, Lok-Ring, Barracuda orange gasket, US Pipe Red Field Lok gaskets, TR Flex, Ebba Megalug or equal. Restrained joint gaskets shall be colored, non-black. The color shall be consistent throughout the entire cross section of the gasket and not be attained by surface coating; the color shall be inherent within the rubber. Gaskets shall meet applicable requirements of AWWA/ANSI C111/A21.11 and shall be ANSI/NSF Standard 61 certified. Restrained gaskets shall be manufactured in the United States.

kbair Arrow kbair Arrow place. Bolts for restrained joints (if applicable) shall be as recommended by the manufacturer. Gripping gaskets shall not be considered an acceptable form of restrained joint. Restrained joint gaskets shall be colored, non-black. The color shall be consistent throughout the entire cross-section of the gasket and not be attained by surface coating; the color shall be inherent within the rubber.

2.4 CORROSION CONTROL

2.4.1 Interior Linings - Potable Water Use

All ductile iron pipe and fittings shall be cement mortar lined. Linings shall be 100% Type II and Type V Portland cement, sand and water, and shall conform to American Standard Specifications for Cement Mortar Lining for Cast Iron Pipe and Ductile Iron Pipe and Fittings, AWWA C104 and shall be standard thickness. The mortar lining shall be protected with the bituminous seal coat. Prior to installation, no pipe shall have cracks in cement mortar lining exceeding 0.016".

All Ductile Iron Pipe and fittings shall receive an external factory applied 2-4 mil asphaltic coating in accordance with the lastest revision of AWWA C151. Where indicated on drawings, DIP shall be installed with 8 mil Polyethylene (Polywrap) in accordance with AWWA C105.

2.5 BRASS PIPING AND APPURTENANCES

2.5.1 Piping

Brass piping shall be manufactured in accordance with ASTM B 43 latest revision of the standard dimensions, weights and tolerances as shown in Table 1 therein for "regular" weight pipe. Material composition shall be copper alloy UNC NO> C23000. The pipe shall be furnished in adequate quantities to meet the requirements of these specifications. Brass piping shall consist of 84-86% copper, maximum 0.05% lead, maximum 0.05% iron, and zinc. The pipe shall be furnished in the annealed condition so Standard No. "O 61" in accordance with ASTM B 601 -94, such that the pipe shows complete recrystallization to enable the pipe to meet the tests required of ASTM B 43 . Brass piping shall conform to AWWA C800.

2.5.2 Brass Fittings

Brass fittings furnished under this specification shall be new and unused and shall have an alloy composition of copper, tin, lead, and zinc in accordance with ASTM B 62 . Material is to be of copper alloy UNC No.

C83600, commonly referred to as 85-5-5-5. All fittings shall have working pressure of 200 psig and shall conform to AWWA C800. Detailed design and testing shall be in accordance with AWWA C800. All castings shall not have injurious blowholes, porosity, shrinkage defects, cracks, or other injurious defects. Castings shall not be plugged, welded, burned in, or impregnated. Mechanical services shall have a 100 percent machine finish with no gaps or low spots due to insufficient parent material. All materials shall be NSF certified for use with potable water.

2.5.3 Brass Gate Valves

If applicable, brass gate valves shall be furnished and installed as indicated on the Contract Drawings. Brass gate valves 2 inches and smaller shall be of bronze body, rising stem, wedge disc and minimum 300 psi non-shock cold water pressure rating. Valves shall have screwed ends

SECTION 02 60 00 Page 13 kbair Arrow kbair Arrow kbair Callout

2.4.2 Exterior Coatings

Ductile Iron Pipe: For buried service, the exterior of ductile iron pipe shall be coated with a layer of arc-sprayed zinc. The mass of the zinc applied shall be 200 g/m2 of pipe surface area. A finishing layer asphaltic topcoat shall be applied to the zinc. The mean dry film thickness of the asphaltic finishing layer shall not be less than 3 mils with a local minimum not less than 2 mils. The zinc coating system shall conform to ISO 8179 standard. All pipe shall be manufactured and zinc coated in the United States at the pipe manufacturer’s facility. For exposed service, all ductile iron pipe unless otherwise noted, shall be primed with Tnemec 37H-77, Tnemec 140-1211, Wasser FerroClad, or equal. All primed material to receive a field coating as specified by the design engineer. Contact ductile iron manufacturer for additional recommended primers.

Ductile Iron Fittings: For buried service, the exterior of ductile iron fittings shall be asphaltic coated per AWWA C151/ANSI A21.51. For exposed service, all ductile iron fittings unless otherwise noted, shall be primed with Tnemec 37H-77, Tnemec 140-1211, Wasser FerroClad, or equal. All primed material to receive a field coating as specified by the design engineer. Contact ductile iron manufacturer for additional recommended primers.

Exposed Piping: All exposed piping shall be primed and painted. Work shall include surface preparation, paint application, inspection of painted surfaces and corrective action required, protection of adjacent surfaces, cleanup and appurtenant work required for the proper painting of all surfaces to be painted. Perform Work in strict accordance with manufacturer's published recommendations and instructions, unless the Government stipulates that deviations will be for the benefit of the project. Subject to compliance with the Specifications, provide products from one of the following manufacturers:

a. Tnemec Company Inc.

b. Ameron

c. CARBOLINE

d. Sherwin-Williams

Painting Schedule: All exterior nonsubmerged piping shall be coated as follows:

Primer: 1 coat epoxy polyamide primer (4-6 mils DFT), Ref 104 below Finish Coat (gloss): 1 coat epoxy polyamide (4-6 mils DFT), Ref 102 below Finish Coat: 1 coat aliphatic polyurethane (3-5 mils DFT), Ref 115 below Color: Light Blue (coordinate with Owner)

Ref Tnemec Series PPG/AMERON CARBOLINE Sherman Williams 104 66 Amercoat 385 Carboguard 893SG Macropoxy 646 102 N69 Amerlock 2 Carboguard 890 Dura-Plate 235 115 1074 or 1075 Amercoat 450HS Carbothane 134HG Acroion 218HS kbair Arrow kbair Arrow kbair Arrow kbair Arrow