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1 - 2 1 3 1 4 1 5 1 6 7 1 8 9 10 11 12 13 14 15 16 17 04 DOUBLE WALL FRP . TANK INSTALLATION TANK TESTINr 05 TANK HOLD- DOWN INSTALLATION S. PRE.-wsrALtATIGN TEST SET UP: Prion to the "ra instplfation test, all shipping ods muse 06 PATCH PAVING AND CONCRETE WORK he removed from the tank and the vacuum on the annular space -must be preleased. ,'GENERAL REQUIREMENTS: Anchor all. underground storagetanks with concrete hold-downs MATERIALSi Double-Wall fiberglass reinforced plastic (FRP) storage tanks as supplied by Chevron ` ' Ips or when s are to be installed by Contractor in accordance with ,the plans and specifications. A wocuum on the annular space is not a substitute for the pre-installation test. All installation ('logs" ) pacified by Company Rep, in the Scope of Work. ' Refer to drawing SCOPE OF WORK: M tests must be performed and :recorded on company supplied forms. F-1D' (N-PET-F10-5). - Tank bedding, ballasting 1 Patch Paving: Patch paving work applies to minor work in connection with covering of pipe 10. TANK TESTING - INSTRUCTIONS: d g, ala t ng and tank hoe backfill procedures are described undeir Section 02 of these trenches, areas adjacent to tank slab and other areas disturbed during tank installation. Double Wall Double Wall specifications. - - - - - - Nominal Gallons Xerxes Owens/Cornina General: Notify. Company Representative, who MUST observe all tests, at least 24 hours Concrete: Concrete work applies to installing tank slob, repair of drive slobs and other are 15,000 29' 5-3 p The tank anchorage system shown on the drawings is designed for a maximurm -level ' of ground water distributed during tank installation. Refer to applicable drawing F-4 or F-7 - /4 Long in advance of any test, t d " 10' - 4' , O.D. - .j . equal to the sub9rq a level. � � � for slab details. 12,000 37' - 0-1/2" Long 36' - 3" Lor1g The pressure opplicotion system is to have two pressure gauges (range: 0 to 10 psi witf 6:.' MATERIALS:' t 8' - 17° O',D. 8` - 1-1/2' O.D. psi. pressure reliefs) in the system; both in good condition and having been tested and t , 10,000 31' - 6-1/2" Long 30' 9" Long calibrated within a three-month pperiod prior to the, tank test (copy of the test and ", !: I. CONCRETE. HOLD-DOWNS: Pre-cast, reinforced concrete "logs", 12" x 12" or 12"' x 18" in - L 8'. - 0. O.Q. 8' - 1-1/ " O.D calibration' data to be furnished-Eo the Company Representative upon request). 9 1,000 it' - 4-t/4" Lonq f1' - 6-1 8"Lone) cross,-section, with chamfered edges. Length, as _shown on the drawings.. 1/2" diameter 4' - 1" O.D. 4" 3-1�" 0 D. USE EXTREME CARE AROUND AND NEAR THE PRESSURIZED TANK. Relieve . ;... galvanized steel anchor loops ore to be cast into 'logs" at locations shown. Pre-cost material the pressure prior to moving the tank or removing any of the fittings. y shall have achieved its ultimate compressive strength of 2500 psi (28 days) prior to installation. (Note: O.D. is over the ribs) ` -' Pre-cost foundation Iles which -meet or exceed above specifications ore acceptable, 07 APPROVED MATERIALS 00NOTinstall a tank which shows any evidence of leaking The .Company Representative�; P D P •' is to be notified and will determine the course of action that will , be followed. 2. WIRE ROPE CABLE: Hot-di - The contractor will furnish the exact hardware listed on the Bill of Materials unless otherwise The Contractor is responsible for all labor, materlal and equipment necessary to conduct p galvanized steel wire rope, minimum 1/2" diameter, breaking specified by the Company Rep. - the following tests: _ strength, 20.4K. APPROVED BACKFILL MATERIALS: Pre-Installot(on Pressure Test, Air 3. HARDWARE: Cable clamps, cable guides, guards, etc. shall be hot-dip golvinized steel. 1. PEA GRAVEL: A clean, naturally rounded ag regale with a 1/6" minimum and a 3/4" Other Contractor supplied equipment includes: vapor recovery (when specified) Phase I Assemblies: Post-Installation Pressure Test, Air or Hydrostatic g Adapters, dust caps and nameplate holders.' Phase 11 Equipment: Anti-Recirculation valve,'^'high hose `i' maximum diameter. Up to 3% of the particles may pass through a #8 sieve. K retractor, nozzle swivels, flow limiter, anti-kink springs, swivel stops, clamps, extension. I. ACCEPTABLE SOAPS: "Soaping" the tank exterior and fittings using a small garden;''; 4. PROTECTIVE COATING: Prior to beckfilling tanks, apply a generous quantity of "Chevron 2. STONE OR GRAVELH Cut the submerged drop lupe for product and heating fuel tanks at a 45' angle so the lowest point type hand-pressurized spray unit. The test soap shall be a high foaming soap that Asphalt Coating" b brush to, all exposed steel cables, loos and hardware. CRUS e pa Washed material, with particle size between 1/8" and g p p g 9 p bubbles easily if in contact with an air leak in the tank but wont bubble due to p 9 y D P 1/2 Up to 3% of the. particles may pass through a #8 sieve. will be 3" (Hold true) from the bottom of the tank. The highest point must be a dispensing from the pressure applicator. Acceptable soaps are: INSTALLATION PROCEDURE: maximum of 6" from the bottom of the tank. The 6" maximum dimension is critical due to air Approved materials must be dry, fuse of ice and snow, and meet ASTM C-33, Para. 7.1 for quality quality rules. Orient the submerged drop tube to direct incoming product toward the opposite end 'Seam Test Concentrate: 1. Prepare. the tank hole to receive hold-down 'logs". Install shoring (or side sloping) in and soundness. The dry gravel density must be a minimum of 95 pounds per cubic foot. of the tank, Refer to installation drawings for additional details. " mway loo- High Soap' accordance with Section 02:. 7008 Southbend Leak Detector'" - TANK HOLE LINER: Contractor is to provide a Filter Fabric Tank Hole liner when: 1. HANDLING: The Contractor is responsible for off-loading the tanks from the del'rvery;vehlcle. or approved equal ' A crane or backhoe of sufficient liftingca acit must be used. The weight of the double wall 2. - Pump the water out. of the tank hole. Keep water out of the tank hole until tanks hove a) Tank hole is in unstable soil, or P Y 9 been set, tied down, ballasted and backfilled. FRP tank is approximately 5000 - 6000 lbs. iii. - PRE-INSTAessuriN PRESSURE TEST, AIR: Use extreme care around and near any pressurized. lank. Never pressurize secondary (outer) tank without pressurizing b) Specified by Company Rep. The entire tank hole (sides and bottom) shall be covered Loy J 2. LIFTING & MOVING: When lifting or moving an GRP tank, always use properly sized ' ; _ 'the primary (inner) tank. - r�' 3. Insert each cable ifirougH its own anchor loop in the "log'" reserving sufficient" cable so that the fabric with 2 foot minimum overlaps. equipment and lift by lifting lu s(s). On large tanks, greater than 8 diameter, use a spreader both rends of tl je cable will be kept at the top of the tank hole offer the logs' are set. 9 9 A.Prima Inner) Tank Test: Locate a pressure gauge in the vent monitor fitting Lower and position the 'logs in the tank hole keeping both ends of the cables at the top Bedding material, tie-down "logs" and sample wells ore to be laced on the to of the filter bar to ensure a lift angle of at least 45 degrees at each lifting fu rY ( P 9 9 / 9 9 9 P D P 9 9 g 9 - in the. secondary (outer) tank. Locate d' second pressure gauge at the till opening sl the hole. Install the 72 minimum thick bedding material in tank hole. Smooth and fabric. Excess fabric at the top of the hole should be folded over the backfill material of and connect the air pressure to this fittin slope per the tank bedding instructions. sub rade level, Never roll or use cables or chains around an FRP tank. Set on smooth ground {!ee`Of . rocks Q P 9• 9 and foreign objects. I I Pressurize the primary (inner) tank to a minimum of 4 psi (maximum 5 psi). 4. Proceed with setting the tanks by adding ballast as necessary to sink and keep down the APPROVED FILTER FABRIC MATERIAL: Exception: FRP Tanks may be rolled u to 90 degrees on a smooth clean surface when performing Monitor the pressure gauges for I hour. There should be no pressure increase°,' tanks. Use only enough bollost to hold the tanks down until the backfill is even with the - P " y p 9 p g in the secondary outer tank. Soap all tank fittings. top of the tanks. (Refer to Section 04 for tank setting requirements.) Reema Inc. - T air 3401 or T ar 3341 the pre-installation pressure test. - ry ( ) P 9 Y Yp YP Caution: Ballast level in tank must never exceed water or backfill level in tank hole Phillips Fibers Corp r "S Tr 4NP" Fabric 3. CHOCKING: Chock tanks in accordance with manufacturer's recommendation until ready for B.Secondory (Outer) Tank Test: Leave the pressure on the primary tank. Using aurin installation. ( )) Hoechst Celanese Corp. - Treviro S1120 installation. If windy conditions exist or ore expected, anchor tanks using nor mum,'1/2" nylon a flexible air hose manifold, connect the air pressure hose from the primary tank - 9 or fabric approved by the tank manufacturer. - H or hem roe over each tank and secure to stakes of adequate size to prevent moveirent of the to the secondary tank, This manifold hose should be connected to the D P q p + vent monitor fitting that does not contain the air pressure gauge. Close the vorven 5. Install the cable guards, guides, etc., on the designated ribs ur the tank. tanks. - / g a D 4 9 (Note:. Designated Ribs" are marked by arrows On the tank surface.)I ' - to the primary tank and disconnect the air supply. Pressurize the secondary tank ., - 4. OPENINGS: Al tanks are shipped with dust rovers in each opening. Dust covers are Is remain by opening the valve between the primary and secondary tank. Soap the entire Pp P 9 Caution: Oti not place straps or cables between the ribs of the tank, in each opening until ready for the pre-installation pressure test. All tanks must have wither tank and alt takings. a dust cop in place or a 5 psi pressure relief valve in place at all times. , - r , . 6, Pass each set of cables (a set of cables is those cables possin through the matching, or _Opon completion of the test, release pressure from the secondary tank prior to 9 5. DAMAGE: Inspect all tanks carefully for signs of damage upon receipt. Note any damage on the releasing pressure from the primary tank. . ' opposite, loops on the"logs") through the guides and loops as shown on the drawing. shipping documents and notify the Company Rep. Contact the tank manufacturer for One end of each cable is be crossed over the lap of the tank in the retainer portion of the additional information. iii. POST-INSTALLATION PRESSURE TESTS, AIR: Extreme care is to be used around and .near any pressurized tank. hold-down strap, Using three cable clamps on each set of cables, clamp bath cables If the tank is damaged at an other time, do not attempt repairs. Notify Campari Rx who together on top of the tank. Prior to tightening the clamps, tension the cables with come- . C] 9 Y P P Y Y P ' a-longs" secured outside the tank hole. Use enough tension to tighten the cables but not will determine the course of action. A.Prtmgry (Inner) Tank Test: Perform this test with all tank risers and fittings the to lift the "logs" or crush the tank. : f .attached. Tighten all took fittings. Locate a pressure gauge in one of the an,lar 6. SETTING: Set tanks on prepared bed with a slope downward toward the fill 'end of thtank. space monitor fittings in the secondary (outer) tank. Locate a second pressure Caution: All sets of cables on a tank must be tightened equally to avoid tank deformation. A slope of 3" difference between the two extreme openings of the tank is' desired, Ticee gouge with a 5 psi pressure relief, to one of the primary (inner) tank fittings and acceptable range of slope is 4' maximum and 2" minimum; with the fill end lower tflo ��remote connect the air pressure hose to this some fitting. Pressurize the primary (inner). „. The cable must rest on the to of the hold-down stropbetween then guides provided. - pump end of the tank. Tanks that exceed the acceptable slope or that slope downwald to the tank to a minimum of 4 psi (maximum 5 psi). Soap all tank fittings and . monitor Repeat this process for each set of tie-down cables. remote pump end are improperly set and must be reset. ,. I` the pressure gauges for a minimum of 1 hour. There should be no pressure �. increase in the secondary (outer) tank. After all tie-downs are completed, commence the backfill procedures to the top of the 7. INSTALLATION WITH APPROVED MATERIALS: Place a 12" lift of backfill evenly around �. tanks. - the tanks. Push backfill completely underneath the tank between the ribs and under the end B.Secondary (Outer) Tank Test: Disconnect the air supply but maintain the pressure` caps. This is the most important part of the backfill process. Procedure can be dope from onthe primary tank. Pressurize the secondary (outer) tank using a flexible air base F bank or adjacent tank top. If a man will be in the hole to "work" the backfill, hole must be manifold. Connect a pressure hose from the primary tank to the annular space's - shored or side sloped as prescribed by current OSHA regulations. monitor .fitting that does not contain the dir pressure gauge. Pressurize the lilt secondary tank by opening the manifold valve between the primary and secondoryr Place second 12" lift or backfill evenly around the tanks. Again, repeat the "working of tank. backfill between the ribs and under the end caps. Add backfill evenly around the tanks up ` to the tops of the tanks. If necessary, bring. pressure of both tanks to a minimum of 4 psi (maximum 5 psi) by reconnecting the air supply to the primary tank. Backfill to subgrade after piping and testing is completed. Monitor the pressure for 1 hour and soap all tank fittings, risers and pipe 8. INSTALLATION WITH ALTERNATE MATERIALS: All alternate materials must be compacted connections. Upon completion of the test, release the air pressure from the to 907 relative density (ASTM D-1557-70). Contractor is to furnish Company Rep,' with secondary tank prior to releasing pressure from the primary tank. Damage to the ' certification of compaction from a registered soil engineer. primary tank may result it the pressure is not relieved from the secondary tank Efirst. Company Rep- is responsible for providing the exact installation specification foralternate materials. Caution:. . Relieve all funk pressure prior to removing any fittings. r No tank that shows any evidence of a leak is to be kept in the system. Any damageinpurred to the tank during the installation will be the Contractor's responsibility. The Company Rep, ;s to be notified of any damage and will determine the course of action to be followed. 01/28/98 CONDOCS If a hydrostatic test is -required by the local agency, isolate the tank for testing and reconnect when ,testing is complete. The hydrostatic test will be obtained by: ----- --- Chevron: _ - - D 11. INTERNAL MEASUREMENTS: Take internal diameter measurements at the fill and the remote !� pump openings, on both single and double wall FRP tanks. The Contractor, witnessed by,the•�", no. wrE em+sansysuewssaNs Na. onrzsewsays/sviss�ens Company Rep., is responsible for making and recording these measurements on a form provlded by the Company, Take the first set of measurements prior to placing any backfill around the: tank. The second set ofmeasurements is taken when the backfill hos reached subgrode .(pr,o7 to pouring the concrete slab). - H the difference between any 2 sets of readings is greater than. n. Co , stop the job. /�(/avu§ // /r®/m�/J�f� Notifymane . ct Company Rep., who will determine the course of action. Contact the tank (� (� (� (� (l(� (�(� - manufacturer for further guidance. 12. BALLASTING: Only the primary (inner) tank shall be used when ballasting the tank. Never fill C - the secondary (outer) tank with a fluid. If the tanks are ballasted, conduct a Hydrostatic Test ; Psaccr awe (instead of the post-installation air test) on the tank and fittings. Paure Chevron Statlon 601 E Kettlelnan Lane 13. BURIAL et and The burial depth from the top of the tank to y is u d, shall be a imoell L CA 95240 of 3 feet and a maximum of 7 feet. The fittings, If o manwoy is used, will be a prox'motetys, - �+ 5 - 6 inches off they top of the tank, This shall be considered for the slope of the piping qpd D61GN thus may affect the tank burial depth. - Tel. 510.4281758 14. VENTING: Vent the annulary space between the primary and secondary tank only if required by r." Fax 5AILOA.5898 com local jurisdictions Venting of the annular space is not required by the tank manufacturer; If bC1E Park Ave , Ste, required manifold a 2 inch .FRP pipe between the tanks and connected to a separate vent riser; Emeryville, Park Ave, Ste, 204 00 not use the primary (product) tank vent to vent the annular space. Emeryville, California 94806 15• INTERSTITIAL MONITOR A pull string may be in the tank. Install a newppteall string if the DRnvnra ane string s missing, lost,. or broken. The pull string is not p tank. manufacturer warranty . m tial monitor at , UNDERGROUND TANK + PIPING Install the Interstitial he bottom. centerline of iia FRP .tank. Insert fish tape`� • - through th� annular space. pull string to the probeend probesignal cable at 12.5 ft. plus`�the - ` burial depth. Attach the g h p 6 fish tope and at probe into tank. __T When the. tags on the signal cable and the pull .stringg match, the probe is at the bottom - sca. sake Peaecr No. centerline of the tank,The pull string is to' remain in 'place and future accessible. -NOTED 97013 ------=. --- T_ .. 16. INSTALLING THE CONTAINMENT SUMP: The containment sump must be watertight to - vw•WM saceT prevent liquid ingress:'or egress,- Install a gasket between the tank collar and the containment' - KP - sump and 'make o"tight seal with o petroleum resistant butyl caulking. ". - cHrcKev Test the containment sump with water if required by local inspectors or Company Rep + - ��■ 17. INSTALLING THE SPILL CONTAINMENT FILLBOX: Tao- spill. containment fillbox must be r `�. liquid tight 'rest all 011boxes by filing wth-water for o minimum of 1 hour, There should : 0.0E be no drop in the water level during this test. 0o not drain water into the tank. • e *� 10/07/97 1 2 3 4 6 6 7 8 ;. 9 10 11 12 13 14