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<br />OPENING BY TANK MANUFACTURER-'
<br />MIN.
<br />VERIFY W/ TANK MFG,
<br />20,000 GAL. FIBERGLASS TANK SECTION
<br />SCALE: 1/4" . V-0"
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<br />SPECIFICATIONS
<br />1.3 EXCAVATION AND BACKFILL:
<br />A. EXCAVATION; If unexpected water condition or rock is encountered, immediately contact the
<br />Owner Rep. for instructions before proceeding with the excavation.
<br />B. TANK HOLE SIZE IN STABLE SOIL: Size excavation perimeter to allow 36" minimum between tanks
<br />antl 24" minimum between tank sides and end caps and the wall of the tank hole,
<br />C. TANK HOLE SIZE IN UNSTABLE SOIL:
<br />1. Unstable soil is defined as having less than 750 lbs./sq. 1l. cohesion, as calculated from on
<br />unconfined compression test, or soils with an ultimate bearing capacity of less then 3,500
<br />lbs./sq.ft Loose sand, muck, bog, peat, swamp or landfill where soil is soft are generally
<br />considered unstable sails.
<br />2. Size excavation perimeter to allow 36" minimum between tanks and a minimum of half the tank
<br />diameter between the lank sides/end caps and the wall of the lank hole.
<br />rubric lie hole f FRP tanks in soil,
<br />J. Filter abrl- will be used to n tank oil or R ll s unstable
<br />4. Permanent o shoring may be used la stabilize the walls of the Conk hole, le the discretion of the
<br />Contractor and/or Owner Rep. If permanent shoring is used, fallow "Stable Sail" size criteria.
<br />Refer to "Alternate Backfill Materials", below.
<br />D. DEPTH OF TANK HOLE.
<br />1. Contractor is responsible for establishing the tank hole depth, considering the length of piping
<br />runs, to the pump blocks and vent risers, pipe burial depth, yard slope and the following criteria;
<br />(Measure at the Remove Pump opening),
<br />o. FRP: The minimum depth of cover is 4'-0" and the maximum is 7'-0".
<br />E, SAFETY REOUIRE.MENT:
<br />No person shall enter a tank hole excavation below the 5 ft. deep level unless the walls are shored
<br />or side sloped as prescribed by current OSHA regulations. No exceptions. State or local requirements
<br />that are more restrictive than Company specifications are to be adhered to as though specified in
<br />Company specifications. The Contractor is responsible for any design, materials, equipment, permits,
<br />etc., for shoring or side sloping a hole.
<br />F. FILL AND BACKFILL:
<br />All fill material shall be of granular nature, free train vegetation and extraneous material. Owner
<br />Repshall inspect and approve the material before it is spread Spread material in lifts not to exceed
<br />12 inches and tamp thoroughly, when required by local code, Contractor shall provide a compaction
<br />lest far certification of fill.
<br />1.4 BALLAST
<br />A. MATERIALS
<br />Water is to be used as a ballast under all conditions where ballost is required.
<br />B. DRY HOLE CONDITION:
<br />Tonks, with backfill to lop of tanks, must be ballasted if there is any chance that surface or
<br />subsurface water will enter the lank hole to a depth of 23" or greater above the bottom of the
<br />tanks.
<br />C. WET HOLE CONDITION;
<br />Aie mpt to pumpwater from the tank hole to maintain a "Dr Hole Condition". If unable to obtain
<br />o 'Pry Hole Condition",Owner Rep. n "l be and be and will p!ermine the course of action h ebe
<br />,
<br />followed, Install filter fabric, lie -down "logs" and bedding as specified elsewhere. Set tank in hale,
<br />partially fill with water until it sinks firmly on the bed. Use only enough water to behest tank until
<br />backfill is to top of tonk. After backfill to top of tank, fill tank with water until completion of
<br />instolletion.
<br />CAUTION - BALLAST LEVEL MUST NEVER EXCEED WATER OR BACKFILL LEVEL IN THE HOLE
<br />DURING INSTALLATION. Do not remove ballast until tank slab has been poured. Do not set remote
<br />pump motor until ballast water hos been removed from tank.
<br />1.5 DOABLE WALL FRP TANK INSTALLATION:
<br />A. MATERIALS:
<br />1. Double-wall fiberglass reinforced plastic (FRP) storage tanks as supplied by Owner are to be
<br />installed by Contractor in accordance with the plans and specifications as supplied by
<br />m,anufaclarer.
<br />2. Other Contractor supplied equipment included vapor recovery (when specified) Phase I
<br />Assemblies: Adapters, dust caps and nameplate holders. Phase it Equipment; Ari Recirculation
<br />valve, high hose retractor, nozzle swivels, flow limiter, anti -kink springs, swivel stops, clamps,
<br />extension,
<br />1.6 HANDLING OF FRP TANKS;
<br />f -I the n from the deliver vehicle.
<br />A. RESPONSIBILITY: The of sufficient
<br />ter is responsible or off-loading us e to ks y
<br />A crane or backhoe of su Hicient lilting capacity must be used. The weight of the double wall FRP
<br />tank is approximately 5000 - 6000 pounds,
<br />B. LIFTING & MOVING: When lifting or moving on FRP tank, always use properly sized equipment and
<br />lift by lifting lug(s). On large tanks, greater than 8' diameter, use a spreader bar to ensure a lift angle
<br />of at least 45' at each lifting lug, Never roll or use cables or chains around an FRP tank. Set on
<br />smooth ground, free of rocks and foreign objects,
<br />EXCEPTION - Tank can be rolled up to 90' on a smooth clean surface when performing the "pre-
<br />installation" pressure lest.
<br />C. CHOCKING: Tanks are to be chocked In accordance with manufacturer's recommendation until
<br />ready for installation. If windy conditions exist or are expected, anchor tanks using minimum 1/2"
<br />nylon or hemp rope over each lank and secure to stakes of adequate size to prevent movement of
<br />the tanks.
<br />D. OPENINGS: All tanks are shipped with dust covers or steel plugs in each opening. Dust covers are to
<br />remain irk each opening until ready for the pre-instaltalion pressure test. All tanks must have either a
<br />dust captor steel plugs in place or a 5 psi pressure relief valve in place at all times.
<br />E. DAMAGE: vI
<br />1. Asped all tanks carefully for signs of damage upon receipt. Note any damage on the shipping
<br />documents and notify the Owner Rep. Contact the tank manufacturer for additional
<br />inforrl,atlon.
<br />2. If the tank is damaged of any other time, do not attempt repairs. Notify Owner Rep, who will
<br />detemine the course of action.
<br />F. SETTING: Set tanks on prepared bed with a slope downward toward the fill end of the tank. A slope
<br />of 3" diflerence between the two extreme openings of the tank is desired. The acceptable range of
<br />slope is 4" maximum and 2" minimum; with the fill end lower than remote pump and of the lank.
<br />Tanks that exceed the acceptable slope or that slope downward to the remote pump end are
<br />improperly set and must be reset.
<br />G. INSTALLATION WITH APPROVED MATERIALS:
<br />1. Place a 12" lift of bockfill evenly around the tanks. Push backfill completely underneath the tank
<br />between the ribs and under theendcops. Procedure can be done from bank or adjacent tank top,
<br />If a man will be in the hole to "work" the bit i!1, hole must be shared or side sloped as
<br />prescribed by current OSHA regulations.
<br />2. Place second 12" lift or backiill evenly around the tanks, Again, repeat the "working" or backfill
<br />between the ribs and under the end caps. Add backfill evenly around the tanks up to the tops
<br />Of the tanks.
<br />3. Backfill to subgrade after piping and testing is completed,
<br />H. INSTALLATION WITH ALTERNATE MATERIALS: All alternate materials most receive written approval from
<br />the tank manufacturer and the Owner representative.
<br />1.7 TANK TESTING
<br />A. PRE -INSTALLATION TEST SET UP: Prior to the pre -installation test, all shipping pads most be
<br />removed from the tank and the vacuum on the annular space must be released,
<br />A vacuum on the annular space is not substitute for the pre -installation test. All installation tests
<br />must be performed and recorded on company supplied forms.
<br />B. NOTIFICATION:
<br />The Owner Rep., MUST observe all tests, Notify of least 24 hours in advance of any tests.
<br />C. PRESSURE APPLICATION SYSTEM:
<br />The pressure application system is to have two pressure gauges (range 0 to 10 psi with 5 psi
<br />pressure reliefs) in the system, both in good condition and having been tested and calibrated within
<br />a three-month period prior to the tank lest (copy of the lest and calibration data to be furnished to
<br />the Owner Rep. upon request).
<br />USE EXTREME CARE AROUND AND NEAR THE PRESSURIZED TANK. Relieve the pressure prior to
<br />moving the tank or removingon fittings.
<br />Never pressurize the secondary router) lock without pressurizing the primary (inner) tank first.
<br />0. LEAKING TANKS,
<br />DO NOT install a tank which shows any evidence of a leak. The Owner Rep Is to be notified of any
<br />damage and will determine the course of action to be followed.
<br />E. SCOPE OF WORK:
<br />The Contractor Is responsible for all labor, material and equipment necessary to conduct the
<br />following Ni
<br />Pre -Installation Pressure Test, Air
<br />After-Instdlallor Pressure Test, Air or Hydrostatic
<br />GENERAL NOTES
<br />1. SET TANK DEPTH TO ALLOW PRODUCT, VAPOR, AND VENT LINES
<br />TO SLOPE 1/4' PER FOOT MIN. DOWN TO TANK.
<br />2. CONTRACTOR SHALL VERIFY THAT THE TURBINE HEAD WILL. BE 4" TO 6"
<br />A80VE THE TANK BOTTOM. DO NOT INSTALL TURBINE PUMP ASSEMBLY
<br />IF IT IS LESS THAN 4" FROM BOTTOM OF TANK.
<br />3, REMOVE SHIPPING PADS FROM TANKS PRIOR TO INSTALLATION.
<br />F. ACCEPTABLE "SOAPS": "Seeping" the tank and fittings during the lest is to be done using a small
<br />garden -type hand -pressurized spray unit, The test soap shall be a high foaming "scop" that bubbles
<br />easily if In contact with on air leak in the lank but won't bubble due to dispensing from the pressure
<br />applicator. Acceptable soaps are:
<br />$earn Test Concentrate"
<br />"Amway Lac High Soap"
<br />"47006 Soulhbend Leak Detector"
<br />or approved equal
<br />G. PRE -INSTALLATION PRESSURE TEST, AIR: Extreme care is to be used around and near the
<br />pressurized lank. Never pressurize the secondary (outer) tank without pressurizing the primary
<br />(inner) tank.
<br />1. Primary (Inner) Tank Test:
<br />Tighten all lank fillings. Locale a pressure gauge in the vent/rnorutor filling In the secondary
<br />(outer) lank. Locale a second pressure gage at a fitting in the manwey and connect the air
<br />pressure hose to this some tilting. Pressurize the primary (inner) lank to o minimum 4 psi,
<br />maximum 5 psi, Monitor the pressure gages a minimum of 1/2 hour. There should be no pressure
<br />increase in the secondary (outer) tank. Soop all lank fittings.
<br />2. Secondary (external) Tank Test:
<br />Maintain the pressure in the primary lank. Free the hose from the service fitting by cutting the
<br />nyon lie. Insert the hose Into the Quick Disconnect check valve (found of the lop of the service
<br />fitting), This wnI allow air to transfer from the primary to secondary tank. Pressurize. to 5 PSIG.
<br />Add or remove or via the supply valve as needed and allow the pressure to stabilize, Close
<br />the voiva on the test manifold. Disconnect the air supply line. Monitor the pressure for one hour.
<br />Soup the entire exterior of the tank and watch for active air bubbles which indicate a leak.
<br />valve. the air supply like already Should have been disconnected, Kien the air flow from the supply
<br />valve sloPs, remove the test manifold,
<br />Whe
<br />the test is complete, carefully release the air pressure from the tank by opening the supply
<br />H. POST-ININSTALLATION PRESSURE TEST, AIR:
<br />1. Primary (Inner) Tank Test: Perform this test with all tank risers and fittings attached. Tighten all
<br />tank fittings. Locate a pressure gauge in one of the annular space monitor fittings in the
<br />secondary (outer) tank, Locate o second pressure gauge with a 5 psi pressure relief, to one of
<br />the primary inner) lank fittings and connect the air pressure hose to this some filling. Pressurize
<br />t hie pr imory inner) tank to a minimum of 4 psi (maximum 5 psi). Soap all lank fittings and
<br />monitor the pressure gauge for a minimum of 1/2 hour. There should be no pressure increase In
<br />the secondary (outer) fork.
<br />2. Secondary (outer) tank Test: Disconnect the air supply but maintain the pressure on the primary
<br />Lack. Pressurize the secondary (outer) tank using o flexible air hose manifold. Connect a pressure
<br />hose from the primary lank to the annular space monitor fitting,
<br />Pressurize the secondary tank by opening the manifold valve between the
<br />primary and secondary tank. If necessary, bring pressure of both tanks to a minimum of 4 psi
<br />(maximum 5 psi) by reconnecting the air supply to the primary tank.
<br />Monitor the pressure for 1/2 hour and soap all lank fittings, risers and pipe connections. Upon
<br />completion of the test, release the air pressure from the secondary tank prior to releasing
<br />pressure from the rimae tank. Damage to the rimae tank may result Ii h pressure if n
<br />p e y a y primary y the p ossa a of
<br />relieved from the secondary tank first.
<br />Caution: Relieve all took pressure pr(or to removing any fittings.
<br />I, POST -INSTALLATION PRESSURE TEST, HYDROSTATIC: No lank trial shows any evidence of a leak
<br />is to be kept in the system. Any damage incurred to the tank during the installation will be ccnlraclars
<br />responsibility. The Owner Rep. Is to be notified of any damage and will determine the course of
<br />action to be followed.
<br />If a hydrostatic test is required by a local agency, the contractor is to isolate the lank for testing and
<br />reconnect when testing is complete. They hydrostatic test will be obtained by Owner,
<br />J INTERNAL MEASUREMENTS: Take internal diameter measurements at the fill and the remote e pump
<br />openings, on both single
<br />and double wall FRP tanks. The Contractor, witnessed by the Owner
<br />Rep., is responsible for making and recording on a form provided by the Company, the required
<br />measurements. Take the first set of measurements prior to placing any backfill around the lank The
<br />second set of measurements is to be taken when the backfill has reached subgrade (prior to pouring
<br />to concrete slob). -
<br />If the difference between two sets of readings is greater than 1 1/2" stop the job, The: Owner Rep.
<br />is to be notified and will determine the course of action, Contact the tank manufacturer for further
<br />guido,nce.
<br />K. BALLASTING: Only the primary (inner) lank shot be used when ballasting the tank. Never fill the
<br />secondary (outer) tank with a fluid. If the tanks are ballasted, conduct Hydrostatic Test (instead of
<br />the post -installation air test) an the tank and fittings.
<br />L. BURIAL DEPTH: The burial depth from the top of the tock to ground level shall be a mhimum of 3
<br />feet -and a maximum of 7 feet, the fittings, if a manway is used, will be approximately 5 to 6 inches
<br />off the top of the took. This shall be considered for the slope of the piping and thus may affect the
<br />Lank burial depth,
<br />M. VENTING: Vent the annular space between the primary and secondary tank only if required by local
<br />Jurisdictions- Venting of the annular space is not required by the tank manufacturer. If required, 2
<br />inch FRP pipe sholl be manifold between the tanks and connected to one vent riser. Do not use the
<br />primary (product) tank vent to eal the annular space.
<br />N. INTERSTITIAL MONITOR: A pull string may be in
<br />the took. Install a new pull string it the string is
<br />missing, lost or broken. The pull string is not a tank manufacturer worfanly item, Install the
<br />interstitial monitor at the bottomcenterline of the FRP tank. Insert fish tape through the annular
<br />space. Tag both the pull string to the probe signal cable at 12.5 ft. plus the burial depth. Attach the
<br />pull string to the probe and to the fish, Tripe and pull probe into lank. When the tags on the signal
<br />cable and the pull string match the probe is at the bottom centerline of the took. The pull string is
<br />to remain in place for future accessibility.
<br />0. INSTALLING THE CONTAINMENT SUMP: The containment sump must be watertight to prevent
<br />liquid ingress or egress. Fiberglas inside and outside of tank collar
<br />P. INSTALLING THE SPILL CONTAINMENT FILLBOX: The spill containment Albox must be liquid light.
<br />Test all fillboxes by filling with tater for a minimum of one hour, There should be no drop in the
<br />water level during this test. Do rot drain woter'into the tank.
<br />1.8 APPROVED MATERIALS
<br />A. APPROVED BACKFILL MATERIALS:.
<br />L PEA GRAVEL: A dean, naturally rounded aggregate with a 1/8" minimum and a 3/4" maximum
<br />diiorneter. Up to 57 of the particles may pass through a 48 sieve;
<br />2, STONE OR GRAVEL CRUSHING$: Washed material with a particle size between 1/8" and 1/2". Up
<br />to 5% of the particles may pass through a 48 sieve.
<br />NOTE: Approved materials mustbe dry, free of Ice and snow, and meet ASTM C-33, Paragraph 7.1
<br />for quality and soundness. The dry gavel density must be a minimum of 95 pounds per cubic foot.
<br />B. TANK HOLE LINER: Contractor is to provided a Filter Fabric Tank Hole Liner when:
<br />1. Tank hole is unstable soil, or
<br />2. Specified by Owner Rep. The entire lank hold (sides and bottom) shall be covered. Lay the
<br />fabric with 2 foot minimum overlops.
<br />NOTE: Bedding material, tie -dawn "logs" and sample wells are to be placed on the top of the filter fabric.
<br />Excess fabric at top of the hole should be folded over the backfill material at subgrade level.
<br />C, APPROVED FILTER FABRIC MATERIAL:
<br />Reemay Inc - Typor 3401 or Typor 3341
<br />Phillips Fibers Corp. - 'Supac 4Np" fabric
<br />Hoechst Coldness Corp. - Trsviro $1120
<br />or fabric approved by the tank manufacturer.
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<br />I END OF ANK.
<br />11
<br />II
<br />III
<br />1
<br />I I
<br />SLOPE TANK 1" IN 10'
<br />I DOWN TOAA DS FILL ENO
<br />�. Id 1 1
<br />STEEL PLATES UNDER EACH
<br />OPENING BY TANK MANUFACTURER-'
<br />MIN.
<br />VERIFY W/ TANK MFG,
<br />20,000 GAL. FIBERGLASS TANK SECTION
<br />SCALE: 1/4" . V-0"
<br />U) EV XULU, la
<br />TUBE
<br />OF FIBERGLASS OVERLAY
<br />STEEL PLATE
<br />7
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<br />BACKFILL
<br />2,p
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<br />SEE SET. B BELOW
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<br />`-- STEEL PLATE
<br />DE`t &5L B
<br />MIN.
<br />SPECIFICATIONS
<br />1.3 EXCAVATION AND BACKFILL:
<br />A. EXCAVATION; If unexpected water condition or rock is encountered, immediately contact the
<br />Owner Rep. for instructions before proceeding with the excavation.
<br />B. TANK HOLE SIZE IN STABLE SOIL: Size excavation perimeter to allow 36" minimum between tanks
<br />antl 24" minimum between tank sides and end caps and the wall of the tank hole,
<br />C. TANK HOLE SIZE IN UNSTABLE SOIL:
<br />1. Unstable soil is defined as having less than 750 lbs./sq. 1l. cohesion, as calculated from on
<br />unconfined compression test, or soils with an ultimate bearing capacity of less then 3,500
<br />lbs./sq.ft Loose sand, muck, bog, peat, swamp or landfill where soil is soft are generally
<br />considered unstable sails.
<br />2. Size excavation perimeter to allow 36" minimum between tanks and a minimum of half the tank
<br />diameter between the lank sides/end caps and the wall of the lank hole.
<br />rubric lie hole f FRP tanks in soil,
<br />J. Filter abrl- will be used to n tank oil or R ll s unstable
<br />4. Permanent o shoring may be used la stabilize the walls of the Conk hole, le the discretion of the
<br />Contractor and/or Owner Rep. If permanent shoring is used, fallow "Stable Sail" size criteria.
<br />Refer to "Alternate Backfill Materials", below.
<br />D. DEPTH OF TANK HOLE.
<br />1. Contractor is responsible for establishing the tank hole depth, considering the length of piping
<br />runs, to the pump blocks and vent risers, pipe burial depth, yard slope and the following criteria;
<br />(Measure at the Remove Pump opening),
<br />o. FRP: The minimum depth of cover is 4'-0" and the maximum is 7'-0".
<br />E, SAFETY REOUIRE.MENT:
<br />No person shall enter a tank hole excavation below the 5 ft. deep level unless the walls are shored
<br />or side sloped as prescribed by current OSHA regulations. No exceptions. State or local requirements
<br />that are more restrictive than Company specifications are to be adhered to as though specified in
<br />Company specifications. The Contractor is responsible for any design, materials, equipment, permits,
<br />etc., for shoring or side sloping a hole.
<br />F. FILL AND BACKFILL:
<br />All fill material shall be of granular nature, free train vegetation and extraneous material. Owner
<br />Repshall inspect and approve the material before it is spread Spread material in lifts not to exceed
<br />12 inches and tamp thoroughly, when required by local code, Contractor shall provide a compaction
<br />lest far certification of fill.
<br />1.4 BALLAST
<br />A. MATERIALS
<br />Water is to be used as a ballast under all conditions where ballost is required.
<br />B. DRY HOLE CONDITION:
<br />Tonks, with backfill to lop of tanks, must be ballasted if there is any chance that surface or
<br />subsurface water will enter the lank hole to a depth of 23" or greater above the bottom of the
<br />tanks.
<br />C. WET HOLE CONDITION;
<br />Aie mpt to pumpwater from the tank hole to maintain a "Dr Hole Condition". If unable to obtain
<br />o 'Pry Hole Condition",Owner Rep. n "l be and be and will p!ermine the course of action h ebe
<br />,
<br />followed, Install filter fabric, lie -down "logs" and bedding as specified elsewhere. Set tank in hale,
<br />partially fill with water until it sinks firmly on the bed. Use only enough water to behest tank until
<br />backfill is to top of tonk. After backfill to top of tank, fill tank with water until completion of
<br />instolletion.
<br />CAUTION - BALLAST LEVEL MUST NEVER EXCEED WATER OR BACKFILL LEVEL IN THE HOLE
<br />DURING INSTALLATION. Do not remove ballast until tank slab has been poured. Do not set remote
<br />pump motor until ballast water hos been removed from tank.
<br />1.5 DOABLE WALL FRP TANK INSTALLATION:
<br />A. MATERIALS:
<br />1. Double-wall fiberglass reinforced plastic (FRP) storage tanks as supplied by Owner are to be
<br />installed by Contractor in accordance with the plans and specifications as supplied by
<br />m,anufaclarer.
<br />2. Other Contractor supplied equipment included vapor recovery (when specified) Phase I
<br />Assemblies: Adapters, dust caps and nameplate holders. Phase it Equipment; Ari Recirculation
<br />valve, high hose retractor, nozzle swivels, flow limiter, anti -kink springs, swivel stops, clamps,
<br />extension,
<br />1.6 HANDLING OF FRP TANKS;
<br />f -I the n from the deliver vehicle.
<br />A. RESPONSIBILITY: The of sufficient
<br />ter is responsible or off-loading us e to ks y
<br />A crane or backhoe of su Hicient lilting capacity must be used. The weight of the double wall FRP
<br />tank is approximately 5000 - 6000 pounds,
<br />B. LIFTING & MOVING: When lifting or moving on FRP tank, always use properly sized equipment and
<br />lift by lifting lug(s). On large tanks, greater than 8' diameter, use a spreader bar to ensure a lift angle
<br />of at least 45' at each lifting lug, Never roll or use cables or chains around an FRP tank. Set on
<br />smooth ground, free of rocks and foreign objects,
<br />EXCEPTION - Tank can be rolled up to 90' on a smooth clean surface when performing the "pre-
<br />installation" pressure lest.
<br />C. CHOCKING: Tanks are to be chocked In accordance with manufacturer's recommendation until
<br />ready for installation. If windy conditions exist or are expected, anchor tanks using minimum 1/2"
<br />nylon or hemp rope over each lank and secure to stakes of adequate size to prevent movement of
<br />the tanks.
<br />D. OPENINGS: All tanks are shipped with dust covers or steel plugs in each opening. Dust covers are to
<br />remain irk each opening until ready for the pre-instaltalion pressure test. All tanks must have either a
<br />dust captor steel plugs in place or a 5 psi pressure relief valve in place at all times.
<br />E. DAMAGE: vI
<br />1. Asped all tanks carefully for signs of damage upon receipt. Note any damage on the shipping
<br />documents and notify the Owner Rep. Contact the tank manufacturer for additional
<br />inforrl,atlon.
<br />2. If the tank is damaged of any other time, do not attempt repairs. Notify Owner Rep, who will
<br />detemine the course of action.
<br />F. SETTING: Set tanks on prepared bed with a slope downward toward the fill end of the tank. A slope
<br />of 3" diflerence between the two extreme openings of the tank is desired. The acceptable range of
<br />slope is 4" maximum and 2" minimum; with the fill end lower than remote pump and of the lank.
<br />Tanks that exceed the acceptable slope or that slope downward to the remote pump end are
<br />improperly set and must be reset.
<br />G. INSTALLATION WITH APPROVED MATERIALS:
<br />1. Place a 12" lift of bockfill evenly around the tanks. Push backfill completely underneath the tank
<br />between the ribs and under theendcops. Procedure can be done from bank or adjacent tank top,
<br />If a man will be in the hole to "work" the bit i!1, hole must be shared or side sloped as
<br />prescribed by current OSHA regulations.
<br />2. Place second 12" lift or backiill evenly around the tanks, Again, repeat the "working" or backfill
<br />between the ribs and under the end caps. Add backfill evenly around the tanks up to the tops
<br />Of the tanks.
<br />3. Backfill to subgrade after piping and testing is completed,
<br />H. INSTALLATION WITH ALTERNATE MATERIALS: All alternate materials most receive written approval from
<br />the tank manufacturer and the Owner representative.
<br />1.7 TANK TESTING
<br />A. PRE -INSTALLATION TEST SET UP: Prior to the pre -installation test, all shipping pads most be
<br />removed from the tank and the vacuum on the annular space must be released,
<br />A vacuum on the annular space is not substitute for the pre -installation test. All installation tests
<br />must be performed and recorded on company supplied forms.
<br />B. NOTIFICATION:
<br />The Owner Rep., MUST observe all tests, Notify of least 24 hours in advance of any tests.
<br />C. PRESSURE APPLICATION SYSTEM:
<br />The pressure application system is to have two pressure gauges (range 0 to 10 psi with 5 psi
<br />pressure reliefs) in the system, both in good condition and having been tested and calibrated within
<br />a three-month period prior to the tank lest (copy of the lest and calibration data to be furnished to
<br />the Owner Rep. upon request).
<br />USE EXTREME CARE AROUND AND NEAR THE PRESSURIZED TANK. Relieve the pressure prior to
<br />moving the tank or removingon fittings.
<br />Never pressurize the secondary router) lock without pressurizing the primary (inner) tank first.
<br />0. LEAKING TANKS,
<br />DO NOT install a tank which shows any evidence of a leak. The Owner Rep Is to be notified of any
<br />damage and will determine the course of action to be followed.
<br />E. SCOPE OF WORK:
<br />The Contractor Is responsible for all labor, material and equipment necessary to conduct the
<br />following Ni
<br />Pre -Installation Pressure Test, Air
<br />After-Instdlallor Pressure Test, Air or Hydrostatic
<br />GENERAL NOTES
<br />1. SET TANK DEPTH TO ALLOW PRODUCT, VAPOR, AND VENT LINES
<br />TO SLOPE 1/4' PER FOOT MIN. DOWN TO TANK.
<br />2. CONTRACTOR SHALL VERIFY THAT THE TURBINE HEAD WILL. BE 4" TO 6"
<br />A80VE THE TANK BOTTOM. DO NOT INSTALL TURBINE PUMP ASSEMBLY
<br />IF IT IS LESS THAN 4" FROM BOTTOM OF TANK.
<br />3, REMOVE SHIPPING PADS FROM TANKS PRIOR TO INSTALLATION.
<br />F. ACCEPTABLE "SOAPS": "Seeping" the tank and fittings during the lest is to be done using a small
<br />garden -type hand -pressurized spray unit, The test soap shall be a high foaming "scop" that bubbles
<br />easily if In contact with on air leak in the lank but won't bubble due to dispensing from the pressure
<br />applicator. Acceptable soaps are:
<br />$earn Test Concentrate"
<br />"Amway Lac High Soap"
<br />"47006 Soulhbend Leak Detector"
<br />or approved equal
<br />G. PRE -INSTALLATION PRESSURE TEST, AIR: Extreme care is to be used around and near the
<br />pressurized lank. Never pressurize the secondary (outer) tank without pressurizing the primary
<br />(inner) tank.
<br />1. Primary (Inner) Tank Test:
<br />Tighten all lank fillings. Locale a pressure gauge in the vent/rnorutor filling In the secondary
<br />(outer) lank. Locale a second pressure gage at a fitting in the manwey and connect the air
<br />pressure hose to this some tilting. Pressurize the primary (inner) lank to o minimum 4 psi,
<br />maximum 5 psi, Monitor the pressure gages a minimum of 1/2 hour. There should be no pressure
<br />increase in the secondary (outer) tank. Soop all lank fittings.
<br />2. Secondary (external) Tank Test:
<br />Maintain the pressure in the primary lank. Free the hose from the service fitting by cutting the
<br />nyon lie. Insert the hose Into the Quick Disconnect check valve (found of the lop of the service
<br />fitting), This wnI allow air to transfer from the primary to secondary tank. Pressurize. to 5 PSIG.
<br />Add or remove or via the supply valve as needed and allow the pressure to stabilize, Close
<br />the voiva on the test manifold. Disconnect the air supply line. Monitor the pressure for one hour.
<br />Soup the entire exterior of the tank and watch for active air bubbles which indicate a leak.
<br />valve. the air supply like already Should have been disconnected, Kien the air flow from the supply
<br />valve sloPs, remove the test manifold,
<br />Whe
<br />the test is complete, carefully release the air pressure from the tank by opening the supply
<br />H. POST-ININSTALLATION PRESSURE TEST, AIR:
<br />1. Primary (Inner) Tank Test: Perform this test with all tank risers and fittings attached. Tighten all
<br />tank fittings. Locate a pressure gauge in one of the annular space monitor fittings in the
<br />secondary (outer) tank, Locate o second pressure gauge with a 5 psi pressure relief, to one of
<br />the primary inner) lank fittings and connect the air pressure hose to this some filling. Pressurize
<br />t hie pr imory inner) tank to a minimum of 4 psi (maximum 5 psi). Soap all lank fittings and
<br />monitor the pressure gauge for a minimum of 1/2 hour. There should be no pressure increase In
<br />the secondary (outer) fork.
<br />2. Secondary (outer) tank Test: Disconnect the air supply but maintain the pressure on the primary
<br />Lack. Pressurize the secondary (outer) tank using o flexible air hose manifold. Connect a pressure
<br />hose from the primary lank to the annular space monitor fitting,
<br />Pressurize the secondary tank by opening the manifold valve between the
<br />primary and secondary tank. If necessary, bring pressure of both tanks to a minimum of 4 psi
<br />(maximum 5 psi) by reconnecting the air supply to the primary tank.
<br />Monitor the pressure for 1/2 hour and soap all lank fittings, risers and pipe connections. Upon
<br />completion of the test, release the air pressure from the secondary tank prior to releasing
<br />pressure from the rimae tank. Damage to the rimae tank may result Ii h pressure if n
<br />p e y a y primary y the p ossa a of
<br />relieved from the secondary tank first.
<br />Caution: Relieve all took pressure pr(or to removing any fittings.
<br />I, POST -INSTALLATION PRESSURE TEST, HYDROSTATIC: No lank trial shows any evidence of a leak
<br />is to be kept in the system. Any damage incurred to the tank during the installation will be ccnlraclars
<br />responsibility. The Owner Rep. Is to be notified of any damage and will determine the course of
<br />action to be followed.
<br />If a hydrostatic test is required by a local agency, the contractor is to isolate the lank for testing and
<br />reconnect when testing is complete. They hydrostatic test will be obtained by Owner,
<br />J INTERNAL MEASUREMENTS: Take internal diameter measurements at the fill and the remote e pump
<br />openings, on both single
<br />and double wall FRP tanks. The Contractor, witnessed by the Owner
<br />Rep., is responsible for making and recording on a form provided by the Company, the required
<br />measurements. Take the first set of measurements prior to placing any backfill around the lank The
<br />second set of measurements is to be taken when the backfill has reached subgrade (prior to pouring
<br />to concrete slob). -
<br />If the difference between two sets of readings is greater than 1 1/2" stop the job, The: Owner Rep.
<br />is to be notified and will determine the course of action, Contact the tank manufacturer for further
<br />guido,nce.
<br />K. BALLASTING: Only the primary (inner) lank shot be used when ballasting the tank. Never fill the
<br />secondary (outer) tank with a fluid. If the tanks are ballasted, conduct Hydrostatic Test (instead of
<br />the post -installation air test) an the tank and fittings.
<br />L. BURIAL DEPTH: The burial depth from the top of the tock to ground level shall be a mhimum of 3
<br />feet -and a maximum of 7 feet, the fittings, if a manway is used, will be approximately 5 to 6 inches
<br />off the top of the took. This shall be considered for the slope of the piping and thus may affect the
<br />Lank burial depth,
<br />M. VENTING: Vent the annular space between the primary and secondary tank only if required by local
<br />Jurisdictions- Venting of the annular space is not required by the tank manufacturer. If required, 2
<br />inch FRP pipe sholl be manifold between the tanks and connected to one vent riser. Do not use the
<br />primary (product) tank vent to eal the annular space.
<br />N. INTERSTITIAL MONITOR: A pull string may be in
<br />the took. Install a new pull string it the string is
<br />missing, lost or broken. The pull string is not a tank manufacturer worfanly item, Install the
<br />interstitial monitor at the bottomcenterline of the FRP tank. Insert fish tape through the annular
<br />space. Tag both the pull string to the probe signal cable at 12.5 ft. plus the burial depth. Attach the
<br />pull string to the probe and to the fish, Tripe and pull probe into lank. When the tags on the signal
<br />cable and the pull string match the probe is at the bottom centerline of the took. The pull string is
<br />to remain in place for future accessibility.
<br />0. INSTALLING THE CONTAINMENT SUMP: The containment sump must be watertight to prevent
<br />liquid ingress or egress. Fiberglas inside and outside of tank collar
<br />P. INSTALLING THE SPILL CONTAINMENT FILLBOX: The spill containment Albox must be liquid light.
<br />Test all fillboxes by filling with tater for a minimum of one hour, There should be no drop in the
<br />water level during this test. Do rot drain woter'into the tank.
<br />1.8 APPROVED MATERIALS
<br />A. APPROVED BACKFILL MATERIALS:.
<br />L PEA GRAVEL: A dean, naturally rounded aggregate with a 1/8" minimum and a 3/4" maximum
<br />diiorneter. Up to 57 of the particles may pass through a 48 sieve;
<br />2, STONE OR GRAVEL CRUSHING$: Washed material with a particle size between 1/8" and 1/2". Up
<br />to 5% of the particles may pass through a 48 sieve.
<br />NOTE: Approved materials mustbe dry, free of Ice and snow, and meet ASTM C-33, Paragraph 7.1
<br />for quality and soundness. The dry gavel density must be a minimum of 95 pounds per cubic foot.
<br />B. TANK HOLE LINER: Contractor is to provided a Filter Fabric Tank Hole Liner when:
<br />1. Tank hole is unstable soil, or
<br />2. Specified by Owner Rep. The entire lank hold (sides and bottom) shall be covered. Lay the
<br />fabric with 2 foot minimum overlops.
<br />NOTE: Bedding material, tie -dawn "logs" and sample wells are to be placed on the top of the filter fabric.
<br />Excess fabric at top of the hole should be folded over the backfill material at subgrade level.
<br />C, APPROVED FILTER FABRIC MATERIAL:
<br />Reemay Inc - Typor 3401 or Typor 3341
<br />Phillips Fibers Corp. - 'Supac 4Np" fabric
<br />Hoechst Coldness Corp. - Trsviro $1120
<br />or fabric approved by the tank manufacturer.
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