33 56 13.pdf

East Branch, Miscellaneous Dam Area Improvements

SECTION TABLE OF CONTENTS

DIVISION 33 - UTILITIES

SECTION 33 56 13

ABOVEGROUND DIESEL FUEL STORAGE TANK

PART 1 GENERAL

1.1 SUMMARY OF WORK

1.2 REFERENCES

1.3 SYSTEM DESCRIPTION

1.4 SUBMITTALS

1.5 DELIVERY AND STORAGE

1.6 DISPOSITION OF MATERIALS

1.7 WORK PLAN

PART 2 PRODUCTS

2.1 ABOVEGROUND FUEL STORAGE TANK

2.2 ACCESSORIES FOR ABOVEGROUND STORAGE TANK

2.2.1 Leak Detection Sight Gauge

2.2.2 Tank Fuel Level Sight Gauge

2.3 PIPING

2.3.1 Steel Pipe

2.3.2 Fittings for Steel Pipe

2.3.2.1 Threaded Connections

2.3.2.2 Service Vent Cap

2.3.2.3 Emergency Vent Cap

2.3.3 Black Steel Pipe

2.3.4 Labels

2.3.5 Gate Valves

2.3.6 Pipe Hangers

2.3.7 Protection of Piping

2.3.8 Heat Trace

2.3.9 Pipe Insulation

PART 3 EXECUTION

3.1 GENERAL

3.2 REMOVAL OF EXISTING TANK

3.2.1 Tank Support Modification

3.3 INSTALLATION

3.3.1 Temporary Fuel Supply

3.3.2 Fuel Storage Tank and Piping

3.3.3 Saddles

3.4 PAINTING

3.5 FIELD TESTING

3.5.1 Piping System Test

3.5.2 Storage Tank Low Pressure Test

-- End of Section Table of Contents --

SECTION 33 56 13 Page 1 W911WN-09-B-0017 Revised by Amendment 0002

SECTION 33 56 13

ABOVEGROUND DIESEL FUEL STORAGE TANK

PART 1 GENERAL

1.1 SUMMARY OF WORK

The work involves removing an existing 1,500 gallon Diesel fuel tank located under the Service Bridge to the Control Tower and installing a new 500 gallon, double wall fuel tank in the same location. The Contractor shall remove the fuel from the existing fuel prior to removal of the tank.

The fuel shall become the property of the Contractor and shall not be placed in the new fuel tank.

A temporary fuel supply system shall be provided for the existing generator while the storage tank is out of commission. The temporary fuel supply system shall have a minimum 50 gallon storage capacity. The Contractor shall provide the initial fill of fuel and maintain the temporary storage tank in the full condition until the new storage tank is put into service.

During the replacement of the fuel tank, the Contractor shall not exceed the bridge loading conditions shown on the reference drawing 038-U1-40/40.

Removal of the existing fuel tank and installation of the new fuel tank shall be performed in accordance with 25 Pa. COde 245. The removal and installation shall be performed by a DEP-certified individual certified in the appropriate category.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASME INTERNATIONAL (ASME)

ASME B16.3 (2006) Malleable Iron Threaded Fittings, Classes 150 and 300

ASTM INTERNATIONAL (ASTM)

ASTM A 325 (2009) Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

ASTM A 36/A 36M (2008) Standard Specification for Carbon Structural Steel

ASTM A 490 (2008b) Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength

ASTM A 53/A 53M (2007) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

SECTION 33 56 13 Page 2

ASTM C 1136 (2008) Standard Specification for Flexible, Low Permeance Vapor Retarders for Thermal Insulation

ASTM C 795 (2008) Standard Specification for Thermal Insulation for Use in Contact with Austenitic Stainless Steel

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-69 (2003; R 2004) Standard for Pipe Hangers and Supports - Selection and Application

MSS SP-80 (2008) Bronze Gate, Globe, Angle and Check Valves

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 30 (2007; Errata 2008) Flammable and Combustible Liquids Code

NFPA 30A (2007; Errata 2008) Code for Motor Fuel Dispensing Facilities and Repair Garages

PENNSYLVANIA CODE (PA CODE)

25 Pa. COde 245 Title 25, Environmental Protection, Part 1, Department of Environmental Protection;

Subpart D Environmental Health and Safety, Chapter 245, Administration of the Storage Tank and Spill Prevention Program

THE SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC SP 6 (2007) Commercial Blast Cleaning

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910.1025 Lead

UNDERWRITERS LABORATORIES (UL)

UL 142 (2006; Rev thru Dec 2007) Steel Aboveground Tanks for Flammable and Combustible Liquids

1.3 SYSTEM DESCRIPTION

Provide aboveground storage tank (AST) and fuel piping system complete and ready for operation. Fuel piping systems shall include piping, and connections to existing piping system.

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. Submit the following in

SECTION 33 56 13 Page 3 accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Work Plan; G, RE

SD-02 Shop Drawings

Aboveground Fuel Storage Tank; G, ED

Temporary Fuel Supply System

SD-03 Product Data

Aboveground Fuel Storage Tank; G, ED

Leak Detection Sight Gauge; G, ED

Tank Fuel Level Sight Gauge; G, ED

Pipe Insulation Systems; G, ED

A complete list of materials, including manufacturer's descriptive technical literature, performance data, catalog cuts, and installation instructions. The product number, k-value, thickness and furnished accessories including adhesives, sealants and jackets for each mechanical system requiring insulation shall be included. The product data must be copyrighted, have an identifying or publication number, and shall have been published prior to the issuance date of this solicitation. Materials furnished under this section of the specification shall be submitted together in a booklet.

SD-06 Test Reports

Field Acceptance Test; G, RE

SD-08 Manufacturer's Instructions

Installation Instructions

SD-10 Operation and Maintenance Data

Accessories For Aboveground Storage Tank; G, RE

1.5 DELIVERY AND STORAGE

Handle and store aboveground storage tank and containment piping systems, to prevent distortions and other damage that could affect their structural and mechanical integrity. Replace damaged items that cannot be restored to original condition. Store items subject to deterioration by exposure to elements, in a well-drained location, protected from weather, and accessible for inspection and handling.

1.6 DISPOSITION OF MATERIALS

All materials removed by the Contractor such as fuel tank, fuel and vent piping, diesel fuel, construction debris, etc., shall become the property of the Contractor and shall be disposed of in accordance with Section

SECTION 33 56 13 Page 4

02 42 00 DISPOSAL OF MATERIALS.

1.7 WORK PLAN

Submit the proposed methods for removing the existing tank and associated items and installing the new tank, supports, and piping. The plan shall include methods and equipment to be used to perform the work and to protect adjacent structures and materials that are not to be removed.

PART 2 PRODUCTS

2.1 ABOVEGROUND FUEL STORAGE TANK

The aboveground storage tank shall meet the requirements of UL 142, secondary containment aboveground storage tank. The tank shall be cylindrical and horizontal, with flat ends. The tank shall bear the UL label in compliance with UL 142.

Fuel tank shall be of double wall construction with a capacity of 500 gallons. The fuel tank shall be approximately 4 ft. outside diameter, with a length of 5 ft. - 5 inches. Fittings shall be arranged approximately as shown on the drawings. The Contractor shall verify dimensions in the field to insure clearances with bridge structural members and vertical alignment with the existing fill system. The tank shall be constructed of mild carbon steel meeting the requirements of ASTM A 36/A 36M. The tank shall be constructed in compliance with UL 142. The double wall tank shall consist of a primary containment aboveground tank contained within a steel secondary containment shell, forming an interstitial (annular) space which is capable of being monitored for leakage into the space from either the interior or exterior walls. The inner fuel tank shall be 7 gauge minimum thickness, and the outer tank shall be 10 gauge minimum thickness. The containment area shall be provided with a monitoring well and gauge for this purpose. The level gauge shall be as recommended by the tank manufacturer. The tank shall be provided with connections for a service vent, emergency vents (one for the inner tank and one for the outer tank), fuel fill, fuel supply lines, and fuel level gauge. The piping connections shall be the size and location shown on the plans. Thread protectors shall be provided for all tank openings prior to shipment from the manufacturer.

Tank openings shall be sealed to prevent water and debris from entering the tank during transport. The exterior of fuel tank shall be prepared in accordance with SSPC SP 6. The surface of the exterior tank shall be prepared in accordance with SSPC SP 6 and painted with epoxy primer coat and a top coat of white polyurethane paint.

2.2 ACCESSORIES FOR ABOVEGROUND STORAGE TANK

2.2.1 Leak Detection Sight Gauge

Leak detection shall be by monitoring tube with level gauge.

2.2.2 Tank Fuel Level Sight Gauge

Provide tank manufacturer's standard cataloged level gauge system.

2.3 PIPING

2.3.1 Steel Pipe

Steel pipe shall be in accordance with ASTM A 53/A 53M, Pipe shall be black

SECTION 33 56 13 Page 5 steel in accordance with ASTM A 53/A 53M, Type S, Grade B. Pipe shall be Schedule 40.

2.3.2 Fittings for Steel Pipe

2.3.2.1 Threaded Connections

Connections shall be in accordance with ASME B16.3, Class 150. Threaded connections shall be sealed tightly with a thread sealant or lubricant which is compatible with the fuel to be handled.

2.3.2.2 Service Vent Cap

The service vent cap shall be of the double outlet type. Cap shall be cast iron with brass screen. Vent cap shall prevent rain, debris and insects from entering the vent piping. Size shall match piping shown on the drawing.

2.3.2.3 Emergency Vent Cap

Emergency vent cap shall be painted cast iron with a venting capacity of 119,000 CFM. Pressure required to open vent shall be in compliance with UL 142 and NFPA 30. Cap shall prevent water from entering vent piping when closed. Size shall match piping size shown on the drawings

2.3.3 Black Steel Pipe

Provide ASTM A 53/A 53M, black steel pipe with threaded fittings for fuel oil supply piping.

2.3.4 Labels

Direction-of-flow labels shall be applied on all piping. This shall include all supply piping.

2.3.5 Gate Valves

MSS SP-80, Class 125.

2.3.6 Pipe Hangers

Pipe hangers shall conform to MSS SP-69 and be of a type appropriate for the installation.

2.3.7 Protection of Piping

All vent piping and other steel piping shall be painted. The emergency vent piping above the bridge deck shall be painted yellow.

2.3.8 Heat Trace

Heat trace shall be an Underwriters Laboratories listed self-regulating heater similar or equal to Raychem XL-Trace 3XL-1, as manufactured by Tyco Thermal Controls. Heat trace shall be designed to operate at a thermal rating of 3 watts/foot at 50 degrees F and a service voltage of 120 VAC. A power connection kit, compatible with the heater, shall be furnished to connect the heat trace cable to the existing electrical system at the junction box on the outside of the Control Tower near the access door. All accessory items required for the proper connection of the heat trace shall

SECTION 33 56 13 Page 6 be as recommended by the Contracting Officer.

2.3.9 Pipe Insulation

Semi-rigid glass fiber pipe insulation with vapor barrier, conforming to ASTM C 795. Vapor retarder jacket shall conform to ASTM C 1136, Type II.

PART 3 EXECUTION

3.1 GENERAL

Removal of the existing fuel tank, modification of the tank supports, and installation of the new fuel tank shall be performed in a manner to prevent any fuel, debris, paint or other materials entering the reservoir.

3.2 REMOVAL OF EXISTING TANK

The existing fuel fill piping, supply piping from the fuel tank to the connection to the existing piping inside the Control Tower, and vent piping shall be removed. The fuel within the existing fuel tank shall be removed by the Contractor. The removed fuel, piping, fuel tank and tank saddles shall become the property of the Contractor and shall be disposed or recycled in accordance with Section 02 42 00 DISPOSAL OF MATERIALS. The Contractor is cautioned that the existing fuel tank, piping, and bridge have a coating system which incudes a red lead primer. The Contractor shall be responsible for compliance with the requirements of

29 CFR 1910.1025.

3.2.1 Tank Support Modification

The existing bridge angle cross bracing beneath the existing fuel tank shall be removed by grinding off the rivet heads and punching the rivets from the gusset plates. The existing walkway and handrailing along the tank shall be removed and stored for reinstallation after the new fuel tank is installed. The existing saddle support beams that are bolted through the web of the bridge beam shall also be removed after the tank is raised.

It is anticipated that the Contractor will raise and lower the tank by a system of winches attached to the bridge structure. The existing fuel tank would then be lowered to a workflat located in the reservoir below.

Installation of the new tank would be in the reverse order.

3.3 INSTALLATION

3.3.1 Temporary Fuel Supply

The Contractor shall provide and maintain a temporary fuel supply system to the existing emergency generator and furnace during the replacement of the fuel storage tank. The Contractor shall submit a plan for the temporary fuel supply system for approval by the contracting officer. Indicate location, installation details, and other construction details.

The temporary fuel storage capacity for the generator shall be 50 gallons minimum. The fuel tank shall be provided with duel containment.

3.3.2 Fuel Storage Tank and Piping

Install fuel storage tank, vents, and other connections as shown on drawings and in accordance with NFPA 30 and NFPA 30A and manufacturer's published installation instructions. Hangers shall be provided at no more

SECTION 33 56 13 Page 7 than 10 feet on center. The hole in concrete deck for the new emergency vent pipe and in the Control Tower wall for the fuel supply piping shall be core drilled, and the opening between the pipe and the sides of the core drilled hole shall be sealed watertight. Pipe insulation shall be installed in accordance with the manufacturer's recommendations. Pipe insulation shall be installed on the fuel supply line to form a continuous thermal retarder, including straight runs, fittings and appurtenances unless specified otherwise. Pipe insulation shall be continuous through the Control Tower wall. An aluminum jacket with factory applied moisture retarder shall be provided over the insulation wherever penetrations require sealing. Where penetrating exterior walls, the aluminum jacket required for pipe exposed to weather shall continue through the concrete wall to a point 2 inches beyond the interior surface of the wall.

Installation shall be with full length units of insulation and using a single cut piece to complete a run. Insulation shields shall be used at pipe hangers. Electrical work for heat tracing shall conform to the requirements of Section 26 05 00.00 40 COMMON WORK RESULTS FOR ELECTRICAL.

After the new fuel storage tank is installed the Contractor shall fill the tank with new #2 diesel fuel.

3.3.3 Saddles

New saddles shall be provided to support the new fuel tank as shown on Drawing M-8004 and in accordance with Section 05 50 13 MISCELLANEOUS METAL FABRICATIONS. The existing S10x24.5 support beams used for supporting the tank saddles shall be reused. The beam closest to the Control Tower shall be relocated at the same elevation to accommodate the length of the new tank. The beam toward the abutment end of the bridge shall be reinstalled at the same location. The Contractor shall coordinate the location of the beams, fuel tank and tank inlet fittings to provide straight, vertical access for the tank fuel fill pipe. All bolts shall be replaced with new bolts meeting the requirements of ASTM A 325 or ASTM A 490. The bolt diameter and length shall be the same as those removed. The existing walkway and handrailing along the fuel tank shall be reinstalled. Portions of the C7x9.8 channel and L3x3x3/8 angle supporting the walkway grating shall be replaced to accommodate the relocation of the tank support beams.

The horizontal cross bracing previously removed shall be reinstalled.

Bolts meeting the requirements of ASTM A 325 or ASTM A 490 shall replace the rivets. Bolt diameter shall be 1/16" smaller than the hole.

3.4 PAINTING

All new steel support members and all existing steel where the finish is damaged by the removal of the existing tank and piping and installation of new tank and piping shall be cleaned and painted to match the existing service bridge. Surface preparation shall be in accordance with the paint manufacturer's instructions for the type of exposure. Primer shall be epoxy similar or equal to Devoe Bar-Rust 235, Carboline Carboguard 888 or Tnemec Tneme-Fascure Series 161. Top coat shall be acrylic aliphatic urethane similar or equal to Devoe Devthane 369, Carboline Carbothane 134 HS, or Tnemec Endura-Shield Series 73. The color shall approximately match the existing bridge coating, except for the above deck emergency vent piping which shall be painted yellow.

3.5 FIELD TESTING

Prior to application of test pressure, remove or valve off piping components which may be damaged by tests and install a calibrated test gauge in the system. Maintain test pressure for at least one hour on all

SECTION 33 56 13 Page 8 new piping work. In the event of leakage, locate and repair leak and repeat test. Submit a field acceptance test report for the tests performed.

3.5.1 Piping System Test

After tank erection, and installation of valves and piping, perform a low air pressure test of the fuel piping assembly using 7 psig as the test pressure. The pressure shall be applied for a minimum of one hour. Piping shall be isolated from the storage tank during the piping pressure test to prevent overpressure in the tanks. Replace defective material disclosed by pressure test and repeat test until results are satisfactory.

3.5.2 Storage Tank Low Pressure Test

Fuel tank shall be leak tested at the job site by the Contractor prior to installation of the tank. Testing shall be in accordance with manufacturer's recommendations.

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SECTION 33 56 13 Page 9