33 56 10 Rev.pdf

Bangor P-907 TPP Pier 217069

SECTION 33 56 10

FACTORY-FABRICATED FUEL STORAGE TANKS AND OIL/WATER SEPARATOR

01/08

PART 1 GENERAL

1.1 SUMMARY

This section defines the requirements for factory-fabricated double wall fuel storage tanks and oil/water separator double wall tank.

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 13.00 20

CATHODIC PROTECTION BY GALVANIC ANODES.

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 ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO HB-17 (2002; Errata 2003; Errata 2005, 17th Edition) Standard Specifications for Highway Bridges

AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)

ACI 318 (2014; Errata 1-2 2014; Errata 3-5 2015;

Errata 6 2016; Errata 7-9 2017) Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14)

AMERICAN PETROLEUM INSTITUTE (API)

API RP 2003 (2015; 8th Ed) Protection Against Ignitions Arising out of Static, Lightning, and Stray Currents

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

SECTION 33 56 10 Rev 1 Page 1 October 13, 2020

Petroleum Processing Plants

ASME INTERNATIONAL (ASME)

ASME B16.5 (2017) Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard

ASTM INTERNATIONAL (ASTM)

ASTM A193/A193M (2017) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service and Other Special Purpose Applications

ASTM A194/A194M (2017a) Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both

ASTM A27/A27M (2017) Standard Specification for Steel Castings, Carbon, for General Application

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

ASTM A48/A48M (2003; R 2012) Standard Specification for Gray Iron Castings

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

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

ASTM B26/B26M (2014; E 2015) Standard Specification for Aluminum-Alloy Sand Castings

ASTM D3308 (2012; R 2017) PStandard Specification for TFE 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 FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 30 (2018) Flammable and Combustible Liquids Code

SECTION 33 56 10 Rev 1 Page 2 October 13, 2020

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

NFPA 407 (2017) 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; TIA 17-15; TIA 17-16; TIA 17-17 )

National Electrical Code

NFPA 77 (2014) Recommended Practice on Static Electricity

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

1.3 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval. Submittals with an "S" are for inclusion in the Sustainability eNotebook, 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

Underground Storage Tank (UST-1 and UST-2); G

Underground Oil/Water Separator (OWS-1); G

Tank Management System with Automatic Level Alarm System (TMS-1)

Tank Gauges

Containment Sumps and Manway Sumps; G

SD-06 Test Reports

Underground Storage Tank Tightness Tests; G

Underground Storage Tank and Oil/Water Separator Manufacturer's Tests (UST-1, UST-2, OWS-1)

Tank Fill Tests

SD-07 Certificates

Contractor Qualifications; G

Permitting

Registration

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Licensed Personnel

Demonstrations

SD-08 Manufacturer's Instructions

Underground Storage Tank (UST-1 and UST-2)

Underground Oil/Water Separator (OWS-1); G

Containment Sumps and Manway Sumps; G

Tank Management System with Automatic Level Alarm System (TMS-1); G

Tank Gauges

SD-10 Operation and Maintenance Data

Underground Oil/Water Separator (OWS-1); G

Containment Sumps and Manway Sumps; G

Tank Management System with Automatic Level Alarm System (TMS-1); G

Tank Gauges; G

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.

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1.4.2.3 Licensed Personnel

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

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.

1.7 COMPLIANCE

Provide all underground storage tanks and appurtenances in compliance with Washington Administrative Code 173-360A.

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, contract number, 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

SECTION 33 56 10 Rev 1 Page 5 October 13, 2020 valves that could be exposed to fuel during system operation shall not be constructed of zinc coated (galvanized) metal. 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 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 UNDERGROUND STORAGE TANK (UST-1 AND UST-2)

Provide a factory-fabricated, double-walled type fiberglass reinforced plastic (FRP) underground storage tank that conforms to NFPA 30 and NFPA 30A. The tank shall be designed and manufactured for an underground, horizontal installation. The tank size, fittings, and accessories shall be as shown on the drawings.

The underground storage tank shall be manufactured with structural ribs which are fabricated as in integral part of the tank wall. Tank shall be manufactured with a laminate consisting of resin and glass fiber reinforcement only. No sand/silica fillers or resin extenders shall be used. The interstitial space between the primary and secondary walls shall be constructed with a glass reinforcement material, which provides a structural bond between the two separator walls, while creating a defined interstice that allows for free flow of liquid. Tank shall be vented to atmosphere. Tank shall be capable of handling liquids with specific gravity up to 1.1. Tank shall be compatible with liquids identified in the manufacturer's standard limited warranty.

The underground storage tank shall be designed to withstand a 5-psig (35 kPa) air-pressure test with a 5:1 safety factor. tank shall be designed to withstand surface H-20 and HS-20 axle loads when properly installed according to manufacturer's current Installation Manual and Operating Guidelines. Tank shall be designed for 7 feet of overburden over the top of the tank, the hole fully flooded, and a safety factor of 5:1 against general buckling. The interstitial space of double-wall separators shall withstand a minimum 20-psig pressure test.

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2.5 UNDERGROUND OIL/WATER SEPARATOR (OWS-1)

Provide a factory-fabricated, double-walled type fiberglass reinforced plastic (FRP) underground oil/water separator that conforms to NFPA 30 and NFPA 30A. The separator shall be designed and manufactured for an underground, horizontal installation. The separator size, fittings, and accessories shall be as shown on the drawings.

The oil/water separator shall be manufactured with structural ribs which are fabricated as in integral part of the tank wall. The primary and secondary walls of the separator shall be manufactured with 100% premium resin and glass-fiber reinforcement. No sand or silica fillers shall be added to the resin. The interstitial space between the primary and secondary walls shall be constructed with a glass reinforcement material, which provides a structural bond between the two separator walls, while creating a defined interstice that allows for free flow of liquid. The separator shall be supplied with factory-installed vertical tube coalesces made from polypropylene. The number of coalescer rows installed shall be as specified on the drawings. Separator shall be vented to atmosphere.

Separator shall be capable of handling liquids with specific gravity up to

1.1. Separator shall be compatible with liquids identified in the manufacturer's standard limited warranty.

Separator shall be designed to withstand a 5-psig (35 kPa) air-pressure test with a 5:1 safety factor. Separate shall be designed to withstand surface H-20 and HS-20 axle loads when properly installed according to manufacturer's current Installation Manual and Operating Guidelines.

Separator shall be designed for 7 feet of overburden over the top of the tank, the hole fully flooded, and a safety factor of 5:1 against general buckling. The interstitial space of double-wall separators shall withstand a minimum 20-psig pressure test.

2.5.1 Oil/Water Separator Coalescing Filter (OWS-1 Only)

Provide factory installed vertical tube coalesces made from polypropylene.

Provide coalescer as indicated on drawings. Coalescer shall be capable of removing free-floating oil droplets to a size of 20 micron and shall be capable of attaining a minimum effluent quality of 10 ppm.

2.5.2 Fiberglass Sludge Baffle (OWS-1 Only)

Provide separators with a FRP grate on which the coalescer packs will be placed to keep sludge build-up from interfering with the coalescer media.

2.5.3 Flanged Fiberglass Nozzles (OWS-1 Only)

All separators shall be equipped with one FRP, factory-installed, flanged inlet nozzle. All separators shall be equipped with one FRP, factory-installed, flanged outlet nozzle and clean-water collector. All flanged nozzles shall be flanged and flat-faced, and conform to Class 150 bolting patterns as specified in ASME B16.5 .

2.5.4 Underground Storage Tank and Oil/Water Separator Anchoring

Anchor straps shall be as supplied by the manufacturer and designed for a maximum load of 25,000 lbs. Galvanized turnbuckles shall be supplied by the manufacturer. Prefabricated concrete anchors shall be supplied by the manufacturer, designed to the ACI 318 standard, manufactured with 4,000 psi concrete and shall have adjustable anchor points.

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2.6 STORAGE TANK AND OIL/WATER SEPARATOR COMPONENTS

2.6.1 Tank Manway

Storage tank manway shall have an internal diameter of 36 inches. The OWS-1 tank manway shall have standard internal diameter to allow for filter access. 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. Frame and cover assembly shall be rated to withstand H-20 highway loading as defined by AASHTO HB-17.

Tank manway shall be designed to withstand 5-psi test pressure with 5:1 safety factor.

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 Ladder

Provide interior tank ladders constructed of fiberglass reinforced plastic.

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.

2.7 TANK MANAGEMENT SYSTEM WITH AUTOMATIC LEVEL ALARM SYSTEM (TMS-1)

Provide a tank management system that provides tank inventory monitoring and alarms, secondary containment monitoring and alarms for the UST-1 and UST-2 hydrostatic monitoring of double wall FRP tank construction, tank sumps, double wall DFM piping and vents, utility enclosure filter room containment basin, and if available, fuel pump interface with the pump control panels (PCP-1 and PCP-2). Provide static and continuous tank testing, tank calibration, inventory reconciliation, and containment compliance monitoring. System shall be provided with an LCD full-color 7-inch touch screen human-machine interface (HMI) including color graphics, programmable single buttons to carry out automated tasks.

Provide system with integral thermal printer (for printout of fuel delivery temperature compensated receipt volumes, alarms, and leak detection test results), internal audible alarm, RS485 connectivity including MODBUS support, English units such as gallons and inches, operating temperatures between 32 and 104 degrees F, operating humidity levels 0 to 90 percent non-condensing, a minimum of 25 percent extra

SECTION 33 56 10 Rev 1 Page 8 October 13, 2020 inputs over project requirements for future growth, and non-volatile memory to store up to 3 months minimum of inventory data logging and alarm history. Coordinate MODBUS connections to Niagara Controller in Network Equipment Cabinet in Utility Enclosure Equipment Room (see electrical drawings). System must monitor a minimum of 3 programmable tank liquid level setpoints. The system shall delineate between each individual setpoint as well as each individual tank. 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 90 percent capacity.

b. High-High Level Setpoint. Produce an alarm condition when a tank's liquid level rises above 95 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 standard industrial enclosure. Panel doors shall swing left or right.

2.7.2.1 Audible Alarm

Panel shall have external speakers and remote speaker mounted as indicated at exterior wall of Utility Enclosure 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 remote visual alarm mounted as indicated at exterior wall of Ultility Enclosure that illuminates in the event of a detected alarm condition. The visual alarm shall display information regarding each alarm condition at the HMI.

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.

2.7.3 Leak Detection System Interface

At the Contractor's option, the associated leak detection system LDS-1 serving the underground storage tanks UST-1 and UST-2 that is specified in Section 33 58 00 LEAK DETECTION FOR FUELING SYSTEMS AND OILY WASTE SYSTEMS may be integrated into the Tank Management System (TMS-1) on the condition that all specified functions for LDS-1 are incorporated into the TMS-1.

SECTION 33 56 10 Rev 1 Page 9 October 13, 2020

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

2.8.2 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.

2.9 CONTAINMENT SUMPS AND MANWAY SUMPS

Sump shall be the factory-fabricated, direct-buried type that provides a watertight connection either directly to the exterior of the tank or to a flanged opening. Sump shall be constructed of fiberglass reinforced plastic. Sump construction shall be chemically compatible with the type of products being handled within the connecting tank. Sump shall allow access to a tank cover without disturbing surrounding backfill. Sump shall be larger in diameter than the connecting tank opening. Sump shall be designed to withstand the underground burial loads. Sump assembly shall prevent the influx of rainfall drainage or ground water.

2.9.1 Piping Penetrations

Sump sides shall allow the penetration of carrier pipes, exterior containment pipes, conduits, and vapor pipes as required. Sump penetrations shall be booted or sealed to ensure that liquid will not escape from the sump in the event that the liquid level within the sump rises above the pipe penetration. Boots and seals used shall be compatible with the fuel to be handled. Boots and seals shall be water resistant to the influx of water from outside the sump. Boots and seals shall be designed and installed to accommodate the anticipated amount of thermal expansion and contraction in the piping system.

2.9.2 Access Cover

Where indicated, the entire top of a containment sump shall be capped with a bolted down, watertight access cover. Cover shall be constructed of the same material as the sump. Cover shall have a larger diameter than the tank manway cover below.

2.10 ACCESSORIES

2.10.1 Concrete Anchor Bolts

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

SECTION 33 56 10 Rev 1 Page 10 October 13, 2020

2.10.2 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.

2.10.3 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.

2.10.4 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.

2.10.5 Polytetrafluoroethylene (PTFE) Tape

Tape shall conform to ASTM D3308.

2.10.6 Street Manway Assembly

Round street manhole frames and covers shall be the straight traffic type. Frames and covers shall be constructed of cast steel in accordance with ASTM A27/A27M, grade 60-30 as a minimum, or cast iron in accordance with ASTM A48/A48M aluminum in accordance with ASTM B26/B26M. Covers shall be the solid plate type with a checker pattern. Covers shall form a watertight seal with the manhole frame to prevent surface water inflow.

Frame and cover assembly shall be rated to withstand H-20 highway loading as defined by AASHTO HB-17.

2.11 FINISHES

2.11.1 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

SECTION 33 56 10 Rev 1 Page 11 October 13, 2020 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 and Oil/Water Separator (UST-1, UST-2, and

OWS-1)

Install underground storage tanks in accordance with manufacturer's installation manual and Operations & Maintenance manual.

3.1.1.1 FRP Tank Handling

Handle tank with extreme care to prevent damage during installation and transportation to the site. Any damaged tank shall be replaced or repaired and tested under direct supervision and advice of the tank manufacturer, using the manufacturer's written procedures.

3.1.1.2 FRP Tank Installation Procedures

Anchor tank to a reinforced concrete anchor deadman as indicated through the use of manufacturer's supplied holddown straps. Separate tank from an anchor deadman and undisturbed earth in bottom of excavation by a minimum of 12 inches of backfill material. Backfill material under tanks is sand.

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 Underground Storage Tank Tightness Tests

Perform a tightness test on each underground storage tank on-site just prior to their placement into the ground. Pneumatically pressurize each storage tank's primary chamber to 5 psig and monitor for a drop in pressure over a 2-hour period during which there shall be no drop in pressure in the tank greater than that allowed for thermal expansion and contraction. Following the successful completion of the primary chamber test, bleed the pressure from the primary chamber into the interstitial space. Maintain this pressure while applying soapsuds or equivalent material over the exterior of the tank. While applying the soapsuds, visually inspect the entire tank, including the bottom surfaces, for leaks (bubble formations). Inspection of the bottom surfaces of a tank may be performed by rotating the tank; however a tank shall only be rotated in strict accordance with the manufacturer's recommendations. Do not rotate a tank more than 90 degrees from the upright position. During testing, install a pressure relief device that relieves at the tank manufacturer's suggested pneumatic pressure limit. Gauges used in pneumatic tests shall have a scale with a maximum limit of 10 psig.

3.2.1.1 Brine Level Test

In lieu of the pneumatic testing procedures described above, a brine level test may be performed on the interstitial space of double-walled FRP tanks

SECTION 33 56 10 Rev 1 Page 12 October 13, 2020

(not applicable to steel tanks). For a brime level test, completely fill a FRP tank's interstitial space with a brine solution. Connect a riser pipe to the interstitial space that will allow the solution to rise up within the riser at least 12 inches. After filling the interstitial space, the tank shall set approximately 3 hours. Following the 3-hour period, measure and record the level of solution within the riser. After a subsequent 4-hour period, again measure and record the level of solution within the riser. If the level of solution within the interstitial decreases anytime during the test, the tank is considered leaking and therefore fails the test.

3.2.1.2 Repairs

Repair leaks discovered in either the primary chamber or the interstitial space in accordance with the tank manufacturer's instructions. Following any tank repairs, re-test the tank until the tank successfully passes the testing requirements defined herein.

3.2.2 Underground Storage Tank and Oil/Water Separator Manufacturer's Tests

(UST-1, UST-2, OWS-1)

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 55 COMMISSIONING OF

FUEL FACILITY SYSTEMS.

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 8 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 55 COMMISSIONING OF FUEL FACILITY SYSTEMS. 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 designed. Stop filling each tank immediately once the overfill devices operates. Do not overfill any storage tank more than the 98 percent

SECTION 33 56 10 Rev 1 Page 13 October 13, 2020 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 90 00 PAINTING, GENERAL. 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 Rev 1 Page 14 October 13, 2020

2.7.3 Leak Detection System Interface

3.1.2 Equipment