33_56_10.pdf

Replace POL Facilities, Hill AFB, Utah HU05

SECTION TABLE OF CONTENTS

DIVISION 33 - UTILITIES

SECTION 33 56 10

FACTORY-FABRICATED FUEL STORAGE TANKS

01/08

PART 1 GENERAL

1.1 SUMMARY

1.1.1 Related Sections

1.1.1.1 Earthwork

1.1.1.2 Leak Detection

1.1.1.3 Cathodic Protection

1.2 REFERENCES

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Contractor Qualifications

1.4.2 Regulatory Requirements

1.4.2.1 Permitting

1.4.2.2 Registration

1.4.2.3 Licensed Personnel

1.5 DELIVERY, STORAGE, AND HANDLING

1.6 PROJECT/SITE CONDITIONS

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 General

2.1.2 Nameplates

2.2 MATERIALS

2.3 ELECTRICAL WORK

2.3.1 Underground Wiring

2.3.2 Grounding and Bonding

2.4 ABOVEGROUND STORAGE TANK

2.4.1 Secondarily Contained Steel Tank

2.4.1.1 Fully-Enclosed Steel Containment

2.4.1.2 Not Used

2.5 TANK PROTECTIVE COATINGS

2.5.1 Interior Surfaces

2.5.2 Exterior Surfaces, Aboveground Tanks

2.6 TANK COMPONENTS

2.6.1 Tank Manway

2.6.2 Tank Piping Penetrations

2.6.3 Tank Striker/Impact Plates

2.6.4 Tank Cleanout and Gauge Assembly

2.6.5 Tank Ladder

2.6.6 Aboveground Tank Emergency Vent

2.7 AUTOMATIC LEVEL ALARM SYSTEM

2.7.1 Setpoints

2.7.2 Control Panel

2.7.2.1 Audible Alarm

2.7.2.2 Visual Alarm

SECTION 33 56 10 Page 1 Revised in Accordance with Am #0002

2.7.2.3 Acknowledge Switch

2.8 TANK GAUGES

2.8.1 Stick Gauge

2.8.2 Tank Strapping Table

2.8.3 Analog Tank Gauge

2.8.4 Hydrostatic Tank Gauge System

2.8.5 Digital Tank Gauge System

2.9 ACCESSORIES

2.9.1 Concrete Anchor Bolts

2.9.2 Bolts and Studs

2.9.3 Nuts

2.9.4 Washers

2.9.5 Polytetrafluoroethylene (PTFE) Tape

2.10 FINISHES

2.10.1 Factory Coating

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Underground Storage Tank

3.1.1.1 Steel Tank Handling

3.1.2 Equipment

3.2 FIELD QUALITY CONTROL

3.2.1 Aboveground Storage Tank Tightness Tests

3.2.2 Tank Manufacturer's Tests

3.2.3 System Commissioning

3.3 DEMONSTRATIONS

3.4 Tank Fill Tests

3.5 FIELD PAINTING

-- End of Section Table of Contents --

SECTION 33 56 10 Page 2

SECTION 33 56 10

FACTORY-FABRICATED FUEL STORAGE TANKS

01/08

PART 1 GENERAL

1.1 SUMMARY

This section defines the requirements for factory-fabricated fuel storage tanks.

1.1.1 Related Sections

1.1.1.1 Earthwork

Excavation and backfilling for tanks shall be as specified in Section

31 00 00 EARTHWORK.

1.1.1.2 Leak Detection

Leak detection shall be as specified in Section 33 58 00 LEAK DETECTION FOR

FUELING SYSTEMS.

1.1.1.3 Cathodic Protection

Provide buried metallic components including pipe, anchors, conduit, etc., with a cathodic protection system as specified in Section 26 42 14.00 10 (SACRIFICIAL ANODE) and Section 26 42 17.00 10 CATHODIC PROTECTION SYSTEM (IMPRESSED CURRENT). Cathodic protection for metal components that attach to a tank shall be coordinated and compatible with the tank corrosion control system.

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.

AMERICAN PETROLEUM INSTITUTE (API)

API MPMS 2.2E (2004; Errata 2009; R 2009) Petroleum and Liquid Petroleum Products - Calibration of Horizontal Cylindrical Tanks - Part 1:

Manual Methods

API RP 1615 (2011) Installation of Underground Petroleum Storage Systems

API RP 2003 (2008; 7th Ed) Protection Against Ignitions Arising out of Static, Lightning, and Stray Currents

API RP 540 (1999; R 2004) Electrical Installations in Petroleum Processing Plants

SECTION 33 56 10 Page 3

ASTM INTERNATIONAL (ASTM)

ASTM A193/A193M (2016) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service and Other Special Purpose Applications

ASTM A194/A194M (2014) Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both

ASTM A307 (2014; E 2017) Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength

ASTM A563 (2015) Standard Specification for Carbon and Alloy Steel Nuts

ASTM B117 (2016) Standard Practice for Operating Salt Spray (Fog) Apparatus

ASTM D3308 (2012) PTFE Resin Skived Tape

ASTM F844 (2007a; R 2013) Washers, Steel, Plain (Flat), Unhardened for General Use

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 1100 (2005) Emerald Book IEEE Recommended Practice for Powering and Grounding Electronic Equipment

IEEE 142 (2007; Errata 2014) Recommended Practice for Grounding of Industrial and Commercial Power Systems - IEEE Green Book

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA 250 (2014) Enclosures for Electrical Equipment (1000 Volts Maximum)

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 30 (2018) Flammable and Combustible Liquids Code

NFPA 30A (2018) Code for Motor Fuel Dispensing Facilities and Repair Garages

NFPA 407 (2012; TIA 11-1) Standard for Aircraft Fuel Servicing

NFPA 70 (2017; ERTA 1-2 2017; TIA 17-1; TIA 17-2;

TIA 17-3; TIA 17-4; TIA 17-5; TIA 17-6;

TIA 17-7; TIA 17-8; TIA 17-9; TIA 17-10;

TIA 17-11; TIA 17-12; TIA 17-13; TIA

17-14) National Electrical Code

SECTION 33 56 10 Page 4

NFPA 77 (2014) Recommended Practice on Static Electricity

NFPA 780 (2017) Standard for the Installation of Lightning Protection Systems

STEEL TANK INSTITUTE (STI)

STI 010-50-1000 (2011) Specification and Manual for External Corrosion Protection of Underground Steel Storage Tanks

STI 020-50-1000 (2010) ACT-100 Specification for External Corrosion Protection of FRP Composite Steel USTs

STI 700-50-5007 (2010) Installation Instructions for Shop Fabricated Aboveground Tanks for Flammable, Combustible Liquids

UNDERWRITERS LABORATORIES (UL)

UL 142 (2006; Reprint Jul 2013) Steel Aboveground Tanks for Flammable and Combustible Liquids

UL 1746 (2007; Reprint May 2012) External Corrosion Protection Systems for Steel Underground Storage Tanks

UL 2085 (1997; Reprint Sep 2010) Protected Aboveground Tanks for Flammable and Combustible Liquids

1.3 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. Submittals with an "S" are for inclusion in the Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Grounding and Bonding

SD-03 Product Data

Aboveground Storage Tank; G-OMA

Tank Protective Coatings Automatic Level Alarm System Tank Gauges

SD-06 Test Reports

Aboveground Storage Tank Tightness Tests; G

SECTION 33 56 10 Page 5

Tank Manufacturer's Tests Tank Fill Tests

SD-07 Certificates

Contractor Qualifications; G Permitting Registration Licensed Personnel Demonstrations

SD-08 Manufacturer's Instructions

Aboveground Storage Tank Automatic Level Alarm System Tank Gauges

SD-10 Operation and Maintenance Data

Aboveground Storage Tank Automatic Level Alarm System Tank Gauges

1.4 QUALITY ASSURANCE

1.4.1 Contractor Qualifications

Each installation Contractor shall have successfully completed at least 3 projects of the same scope, and the same size or larger within the last 6 years, and demonstrated specific installation experience in regard to the specific system installation to be performed. Each installation Contractor shall have taken, if applicable, manufacturer's training courses on the installation of storage tanks and shall meet all applicable licensing requirements in the state. Submit a letter listing prior projects, the date of construction, a point of contact for each prior project, the scope of work of each prior project, and a detailed list of work performed. The letter shall also provide evidence of prior manufacturer's training, state licensing, and other related information.

1.4.2 Regulatory Requirements

1.4.2.1 Permitting

Obtain necessary permits in conjunction with the installation of underground storage tanks as required by federal, state, or local authority.

1.4.2.2 Registration

Obtain and complete all required tank registration forms required by federal, state, and local authorities. Submit all tank registration forms within 30 days after contract award. The Contracting Officer will submit the forms to the proper regulatory agencies.

1.4.2.3 Licensed Personnel

Tank installers shall be licensed/certified by the state when the state requires licensed installers.

SECTION 33 56 10 Page 6

1.5 DELIVERY, STORAGE, AND HANDLING

Handle, store, and protect equipment and materials to prevent damage before and during installation in accordance with the manufacturer's recommendations, and as approved by the Contracting Officer. Replace damaged or defective items.

1.6 PROJECT/SITE CONDITIONS

Exposed moving parts, parts that produce high operating temperatures and pressures, parts that may be electrically energized, and parts that may be a hazard to operating personnel shall be insulated, fully enclosed, guarded, or fitted with other types of safety devices. Install safety devices so that proper operation of equipment is not impaired.

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 General

Provide materials and equipment that are standard products of a manufacturer regularly engaged in the manufacturing of such products, that are of a similar material, design and workmanship. Provide materials and equipment that have been in satisfactory commercial or industrial use for a minimum 2 years prior to bid opening. The 2 year period shall include applications of the equipment and materials under similar circumstances and of similar size. Provide materials and equipment that have been for sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2 year period.

2.1.2 Nameplates

Attach nameplates to all specified equipment defined herein. List on each nameplate the manufacturer's name, address, acceptance date, component type or style, model or serial number, catalog number, capacity or size, and the system that is controlled. Construct plates of anodized aluminum .

Install nameplates in prominent locations with nonferrous screws, nonferrous bolts, or permanent adhesive. Minimum size of nameplates shall be one by 2.5 inches. Lettering shall be the normal block style with a minimum 0.25 inch height. Accurately align all lettering on nameplates.

Key the nameplates to a chart and schedule for each system. Frame charts and schedule under glass, and locate where directed near each system.

Furnish two copies of each chart and schedule. Each nameplate description shall identify its function.

2.2 MATERIALS

Internal parts and components of equipment, piping, piping components, and valves that could be exposed to fuel during system operation shall not be constructed of zinc coated (galvanized) metal, brass, bronze, or other copper bearing alloys. Do not install cast iron bodied valves in piping systems that could be exposed to fuel during system operation.

2.3 ELECTRICAL WORK

Provide controllers, integral disconnects, contactors, controls, and control wiring with their respective pieces of equipment. Provide electrical equipment, including motors and wiring, as specified in Section

SECTION 33 56 10 Page 7

26 20 00 INTERIOR DISTRIBUTION SYSTEM. Provide switches and devices necessary for controlling and protecting electrical equipment. Controllers and contactors shall have a maximum of 120-volt control circuits and shall have auxiliary contacts for use with the controls provided.

2.3.1 Underground Wiring

Enclose underground electrical wiring in PVC coated conduit.

Dielectrically isolate conduit at any steel storage tank connection.

2.3.2 Grounding and Bonding

Grounding and bonding shall be in accordance with NFPA 70, NFPA 77, NFPA 407, NFPA 780, API RP 540, API RP 2003, IEEE 142, and IEEE 1100. Provide jumpers to overcome the insulating effects of gaskets, paints, or nonmetallic components.

2.4 ABOVEGROUND STORAGE TANK

2.4.1 Secondarily Contained Steel Tank

Provide a factory-assembled unit that includes a primary storage tank and an integral factory-fabricated secondary containment. Tank assembly shall be in accordance with NFPA 30 and NFPA 30A and be designed and manufactured for a horizontal cylindrical installation. Primary storage tank shall be factory-welded, steel that conforms to UL 142. Tank assembly shall be mounted on the tank manufacturer's standard UL listed support skid that elevates the tank assembly above the underlying concrete slab a minimum of 12 inches. Tank assembly shall have lifting lugs that allow tank relocation. Provide tank assembly with the manufacturer's standard external ladder and platform assembly, except as modified herein. The ladder and platform assembly shall be constructed of structural steel and shall allow personal access to the top of the tank system.

2.4.1.1 Fully-Enclosed Steel Containment

The secondary containment reservoir shall be the factory-fabricated, steel type that fully-encloses the primary storage tank. The containment reservoir shall conform to UL 142. The interstitial space between the primary tank and the containment reservoir shall be both pressure testable and verifiable. The entire tank assembly shall conform to UL 2085. Tank assembly shall bear the UL 2085 label as a protected tank. The primary storage tank shall be supported within the containment reservoir with steel tank saddles, or other similar supports, fabricated and installed by the tank manufacturer.

[*Am-2]

2.4.1.2 Not Used

2.5 TANK PROTECTIVE COATINGS

2.5.1 Interior Surfaces

Coat 100 percent of a metal tank's interior surfaces including all metal piping and metal appurtenances as specified in Section 09 97 13.17 THREE

COAT EPOXY INTERIOR COATING OF WELDED STEEL PETROLEUM FUEL TANKS.

SECTION 33 56 10 Page 8

2.5.2 Exterior Surfaces, Aboveground Tanks

Protect the exterior surfaces of each aboveground tank as specified in Section 09 97 13.27 EXTERIOR COATING OF STEEL STRUCTURES.

2.6 TANK COMPONENTS

2.6.1 Tank Manway

Tank manway shall have an internal diameter of 30 inches. Provide each manway with a matching flanged watertight manway cover. Manway covers shall be UL listed, be constructed of pressed or mild steel, and include a UL listed gasket.

2.6.2 Tank Piping Penetrations

Provide a welded-in-place double tapered National Pipe Thread (NPT) coupling for each tank piping connection.

2.6.3 Tank Striker/Impact Plates

Provide an interior striker/impact plate under each tank manway and pipe connection. Each plate shall be a minimum of 1/4 inch in thickness, be larger in diameter than the tank penetration, fit the curvature of the tank bottom, and be completely coated in the same fashion as the interior tank bottom coating. Each plate shall be welded to the tank bottom at the factory (full circumference connection).

2.6.4 Tank Cleanout and Gauge Assembly

Provide a combination cleanout and gauge assembly. The assembly shall include a bronze top-seal type adapter with a corresponding locking type cap (adapter and cap both externally-mounted to the top of the tank) and a steel or aluminum pipe mounted internal to the tank. The pipe shall be a minimum 2 inches in size and extend downward through the top of the tank to within 3 inches of the tank bottom. Provide the entire length of pipe inside the tank with 1/2 inch wide by 12 inches long slots at alternate locations. Coat the pipe in the same fashion as the interior tank bottom coating.

2.6.5 Tank Ladder

Provide interior tank ladders constructed of either fiberglass or steel.

If steel, coat the ladder in the same fashion as the tank interior. The two stringers shall be a minimum 3/8 inch thick and a minimum 2 inches wide. The rungs shall be a minimum 3/4 inch rod on 12 inches centers.

Members of the ladder shall be securely affixed. Ladder shall be of sufficient length to extend from the bottom of the tank to the top surface of the tank. Ladder shall be rigidly connected to the tank bottom in accordance with the tank manufacturer's standard. Ladder shall be connected to the top of the tank with pipe guides or slip bars to accommodate expansion of the two stringers.

2.6.6 Aboveground Tank Emergency Vent

Vent shall be the normally-closed, UL listed type that vents outward and upward. Vent shall conform with NFPA 30 and UL 142. Provide vent with the cubic feet per minute (cfm) rating permanently labeled on the the vent's exterior.

SECTION 33 56 10 Page 9

2.7 AUTOMATIC LEVEL ALARM SYSTEM

Provide a system that will monitor 3 programmable liquid level setpoints.

The system shall delineate between each individual setpoint . The system shall produce an audible and visible alarm in the event of monitoring an alarm condition. Mechanically-actuated float assemblies shall be field adjustable. The system shall be totally independent of the tank gauging system.

2.7.1 Setpoints

Configure the alarm system's 3 setpoints in accordance with the following.

a. High Level Setpoint. Produce an alarm condition when a tank's liquid level rises above 95 percent capacity.

b. High-High Level Setpoint. Produce an alarm condition when a tank's liquid level rises above 98 percent capacity.

c. Low Level Setpoint. Produce an alarm condition when a tank's liquid level drops below 15 percent capacity.

2.7.2 Control Panel

Install the control panel for the alarm system in a NEMA 4 rated enclosure in accordance with NEMA 250 . Panel doors shall swing left or right.

2.7.2.1 Audible Alarm

Panel shall have internal speakers that produce a buzzer sound of 70 decibels or greater in the event of a detected alarm condition.

2.7.2.2 Visual Alarm

Panel shall have a visual alarm that illuminates in the event of a detected alarm condition. The visual alarm shall include either individual lights for each alarm condition or shall include a single light and a liquid crystal display (LCD) panel that displaces information regarding each alarm condition.

2.7.2.3 Acknowledge Switch

Panel shall have a manual acknowledge switch that will deactivate the audible alarm. The acknowledge switch shall not deactivate subsequent audible alarms unless depressed manually again for each occurrence. Under no circumstance shall this acknowledgement switch extinguish the visual alarms until the alarm condition has been corrected. The acknowledge switch shall be an integral component located on the front of the control panel. The switch shall be either a key switch or push button.

2.8 TANK GAUGES

2.8.1 Stick Gauge

For each tank, provide 2 wooden stick gauges. Gauge length shall allow the measurement of the entire level of fuel in the corresponding tank. Gauges shall be compatible with the fuel to be measured (no swelling or damage from fuel contact). Provide gauge with non-sparking caps on each end.

SECTION 33 56 10 Page 10

Mark gauges in feet and inches. The smallest unit of measure on the gauge shall be 1/16 inch.

2.8.2 Tank Strapping Table

Furnish 2 API MPMS 2.2E certified strapping tables (calibration charts) for each tank. Tables shall indicate the liquid contents in gallons for each 1/16 inch of tank depth. For each tank, provide an electronic media file of each strapping table.

2.8.3 Analog Tank Gauge

Gauge shall be the level sensing, mechanically actuated type that provides the tank level readout in a sealed glass cap contained in a gauge box.

Gauge shall be accurate to plus or minus 1/4 inch and shall measure the liquid level over the full range of a tank's height. Gauge shall have vapor tight seals to prevent condensation from fogging the viewing glass.

2.8.4 Hydrostatic Tank Gauge System

System shall be the dial type calibrated in gallons. Gauge shall be manually actuated using a built-in hand pump. The transmission line from the gauge to the tank shall be seamless copper tubing run in Schedule 80 PVC carrier pipe. The tank assembly (fittings, air bells, and tubing) shall be installed according to the gauge manufacturer's recommendations.

2.8.5 Digital Tank Gauge System

Gauge system shall be the mechanically or electronically actuated type that can continuously monitor a tank's usable liquid level storage capacity.

The system shall provide a digital readout of a tank's liquid level in terms of inches and gallons. The system shall be accurate to plus or minus 1/16 inch. The system shall measure water accumulation in inches from 3/4 to 5 inches off the bottom of a storage tank. Construct system components to be chemically compatible with the fuel to be handled. For each tank monitored, provide a sending unit that transmits the digital readout from a tank to the electronic monitoring/alarm panel defined in Section 33 58 00

LEAK DETECTION FOR FUELING SYSTEMS

2.9 ACCESSORIES

2.9.1 Concrete Anchor Bolts

Concrete anchors shall conform to ASTM A307, Grade C, hot-dipped galvanized.

2.9.2 Bolts and Studs

Carbon steel bolts and studs shall conform to ASTM A307, Grade B, hot-dipped galvanized. Stainless steel bolts and studs that conform to ASTM A193/A193M, Grade 8.

2.9.3 Nuts

Carbon steel nuts shall conform to ASTM A563, Grade A, hex style, hot-dipped galvanized. Stainless steel nuts shall conform to ASTM A194/A194M, Grade 8.

SECTION 33 56 10 Page 11

2.9.4 Washers

Provide flat circular washers under each bolt head and each nut. Washer materials shall be the same as the connecting bolt and nut. Carbon steel washers shall conform to ASTM F844, hot-dipped galvanized. Stainless steel washers shall conform to ASTM A194/A194M, Grade 8.

2.9.5 Polytetrafluoroethylene (PTFE) Tape

Tape shall conform to ASTM D3308.

2.10 FINISHES

2.10.1 Factory Coating

Unless otherwise specified, provide equipment and components fabricated from ferrous metal with the manufacturer's standard factory finish. Each factory finish shall withstand 500 hours exposure to the salt spray test specified in ASTM B117. For test acceptance, the test specimen shall show no signs of blistering, wrinkling, cracking, or loss of adhesion and no sign of rust creepage beyond 1/8 inch on either side of the scratch mark immediately after completion of the test. For equipment and component surfaces subject to temperatures above 120 degrees F, the factory coating shall be appropriately designed for the temperature service.

PART 3 EXECUTION

3.1 INSTALLATION

Install work so that parts requiring periodic inspection, operation, maintenance, and repair are readily accessible. Handle storage tanks with extreme care to prevent damage during placement and install in accordance with the manufacturer's installation instructions and NFPA 30 or NFPA 30A, as applicable. Inspect the exterior surface of each tank for obvious visual damage prior to and during the placement of each storage tank.

Repair surface damage to a storage tank according to manufacturer's requirements before proceeding with the system installation. Provide the termination of fill lines within a tank with an antisplash deflector.

Provide nylon dielectric bushings on pipe connections to a steel tank.

3.1.1 Underground Storage Tank

Install underground storage tanks in accordance with API RP 1615 except as modified herein. Place tank on a 1/8 inch per foot slope with the fill point at the low end and the vent connection at the high end. Locate tank so that the fuel discharge pipes slope up uniformly toward the fuel outlet. Install containment sumps prior to any backfill being added above the storage tanks.

3.1.1.1 Steel Tank Handling

Store, handle, and place externally coated steel tanks with care and in a manner that will minimize damage to the coating and will not reduce its protective value. Place coated tanks in position carefully and with a minimum of handling. Prior to backfilling a tank, visually inspect the tank exterior protective coating for damage. Repair any damaged tank coating in accordance with the appropriate UL or STI standard (UL 1746, STI 020-50-1000, or STI 010-50-1000).

SECTION 33 56 10 Page 12

3.1.2 Equipment

Properly level, align, and secure equipment in place in accordance with manufacturer's instructions. Provide supports for equipment, appurtenances, and pipe as required. Install anchors, bolts, nuts, washers, and screws where required for securing the work in place. Sizes, types, and spacings of anchors and bolts not indicated or specified shall be as required for proper installation.

3.2 FIELD QUALITY CONTROL

3.2.1 Aboveground Storage Tank Tightness Tests

Perform tightness tests on each aboveground storage tank prior to making piping connections. Perform testing in accordance with STI 700-50-5007 except as modified herein. Gauges used to monitor the tests shall have a scale with a maximum limit of 10 psig. Repair leaks discovered during the tightness tests in accordance with tank manufacturer's instructions.

Following any repair, re-test the tank until the tank successfully passes the testing requirements of this paragraph.

3.2.2 Tank Manufacturer's Tests

In addition to the tests required herein, perform any additional tests (i.e., leak tests, cathodic protection verification tests, etc.) on each storage test that is required by the tank manufacturer's written test procedures. Manufacturer's tests that are redundant to tests already required by this specification will only be performed once per tank.

Repair all leaks discovered during the tests in accordance with manufacturer's instructions. Following tank repairs, re-test the tank until the tank successfully passes the manufacturer's testing requirements.

3.2.3 System Commissioning

System commissioning shall conform to Section 33 08 53 AVIATION FUEL

DISTRIBUTION SYSTEM START-UP.

3.3 DEMONSTRATIONS

Conduct a training session for designated Government personnel in the operation and maintenance procedures related to the equipment/systems specified herein. Include pertinent safety operational procedures in the session as well as physical demonstrations of the routine maintenance operations. Furnish instructors who are familiar with the installation/equipment/systems, both operational and practical theories, and associated routine maintenance procedures. The training session shall consist of a total of 4 hours of normal working time and shall start after the system is functionally completed, but prior to final system acceptance. Submit a letter, at least 14 working days prior to the proposed training date, scheduling a proposed date for conducting the onsite training.

3.4 Tank Fill Tests

Tank fill tests shall not be performed until after the flushing, cleaning, and adjusting requirements defined in Section 33 08 53 AVIATION FUEL DISTRIBUTION SYSTEM START-UP. For the tank fill tests, initially fill each storage tank with fuel in order to verify the tank level alarm system operates properly and the tank overfill protection device functions as

SECTION 33 56 10 Page 13 designed. Stop filling each tank immediately once the overfill devices operates. Do not overfill any storage tank more than the 98 percent level. Drain the system below the low liquid level setpoint to verify operation of the low level alarm. Correct and retest any problems with the level alarm system or the overfill device until each operate as specified herein. During the tests, verify that all tank gauges are calibrated and operating appropriately.

3.5 FIELD PAINTING

Painting required for surfaces not otherwise specified shall be field painted as specified in Section 09 97 13.27 EXTERIOR COATING OF STEEL STRUCTURES. Do not paint stainless steel and aluminum surfaces. Do not coat equipment or components provided with a complete factory coating.

Prior to any field painting, clean surfaces to remove dust, dirt, rust, oil, and grease.

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SECTION 33 56 10 Page 14