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2. SECONDARY PIPE SYSTEMS (CONTAINMENT) for acceptable hardware). Soid tubes are to be flanged a mechanical plate–type vibrator (2000 – 3000 vibrations 3. After calibration check of each dispenser, strainers will under the truck hose connection collar. The tubes come as per minute). Do not use a concrete vibrator or water be removed and cleaned, taking care to catch any product All containment hardware (including clamps, seals, gaskets, kits and require field assembly before installation. tamping. released while removing filters and/or strainer elements. flexible boots, etc) are "contractor furnish and install" items. All such hardware is available through local Shell's approved spill–containment fill box is a very Where sand is used to backfill the trenches, filter fabric 4. Check flow rate of each nozzle to insure pumping capacity distributors. See Approved Materials Lists for approved unique concept with a vapor & water tight sealed inner lid. barriers are required between the trenching and the tank is adequate according to manufacturer's recommendation. suppliers. This fillbox is a complete assembly which includes an 18 hole backfill material. diameter slab access box with an 18" diameter structural 5. Test the operation of all leak detectors and impact check All containment hardware is to be slipped over primary fiberglass lid. See the Approved Materials Lists for 3. STORAGE AND HANDLING OF BED/BACKFILL MATERIALS ON SITE valves in accordance with annual leak detector/line test piping and left loose while primary piping is joined, supplier details. procedure. After all segments of primary piping have been pressure Do not allow bed/backfill material to intermix with an tested (50 psig minimum with soap for 1 hour), secondary The MANDATORY absorbent sock for below--grade Pillboxes is excavated soil or other material on site. Contamination 6. The contractor to provide a red lined "as built" copy of containment hardware may be joined and similarly ressure not furnished by the box fabricator, but must be purchased of self–compacting gravels could result in the need for site plan showing actual location of all piping runs and tested (3 to 5 prig MAXIMUM with soap for 1 hour. separately by the contractor. These absorbent socks are 3" mechanical compaction. The minimum/maximum particle orientation of all tank appurtenances. Inclusion of 35 mm to 4" in diameter by 48" long, are hydrophobic (will not sizes specified are critical for self–compaction. color slides or photos taken prior to closure of secondary Stainless steel worm clamps must - be tightened in two absorb water), and oleophilic (will absorb petroleum containment or backfilling are strongly encouraged. separate passes. First pass, tighten to 35 to 40 inch– products and any chemical additives bonded to the petroleum In freezing conditions materials must be kept dry and free pounds torque. Second pass, tighten to 60 inch–pounds molecule. Preferred suppliers are: of ice. 7. A completed "Installation Inspection Procedure & Checklist" torque. NEVER tighten clamps from 0 to 60 inch--pounds in a with the accompanying "Certificate of Test" is to be single pass or minor joint leaks may result. WOLF Oil Only 1 -800-227–WOLF Do not intermix gravel, stone or gravel crushings, or sand provided the Shell Engineer for approval on completion of MATASORB M-30 1 -800-222-4799 in the some excavation or connected excavations without the installation. Containment hardware must be installed per instructions herein OCLANSORB "Sorb--Sox" 1 -403-290-6650 filter fabric barriers (see paragraph 4 covering the use of and manufacturer's guidelines. Do not mix brands of hardware soil stabilization and filter fabric to prevent migration unless instructed to do so in these drawings. Stage I vapor risers will utilize a standard 12 diameter between dissimilar soils), slab access box with a 12" by 4" Fil---Seal–Pak nitrile liner Containment Technology Corp (CTC) can furnish 6" diameter from American Liquid Controls (phone 1-313-646-3732). 4. INSTALLATION OF SOIL STABILIZATION/FILTER FABRIC HDPE tank riser co toinment pipes (either TEE'd version or non–TEE version. These riser containment pipes have a Submerged turbines are furnished by Shell and are to be All pipe trenches MUST be lined with an approved soil 1 " threaded port for sensor conduit. ordered for the appropriate tank diameter with a manway stabilization filter fabric, regardless of soil conditions and with a maximum 12" mounting riser. The turbines are and type of backfill material used. Approved fabric Unless required by local codes or specified by the Shell installed inside a 42" or 48" fiberglass sump furnished by materials are the some as specified in section XIV-9. engineer, all tank risers except turbine sump will NOT be the tank manufacturer. These sumps come standard with monitored by a sensor as they should never (or very a water–tight lid. Material should be cut to an appropriate width for the infrequently) contain any liquid. Installation drawings depth and width of the pipe trench so that there is show details for such sensors. IF/WHEN TANK RISERS ARE The sump height con be field adjusted by trimming the sufficient material to overlay the top edges of the trench CONTAINED, CONTRACTOR SHALL ALWAYS INSTALL PRESSURE bottom edge of the sump barrel, NOT the edge of the collar during pipe installation and make a complete envelope of TIGHT CONDUITS AND ANY ACCESS BOX, EVEN IF SENSORS (which is factory–bonded to the tank). For increased the backfill at sub --grade as shown on detail drawings with ARE NOT INSTALLED AT THIS TIME, THREADED CONDUIT depths, two barrel sections may be stacked. a minimum of 6" lap at the top. Laps of material along the JOINTS MUST BE PREPARED WITH AN ELECTRICALLY trench excavation should be a minimum of 2 feet. CONDUCTIVE THREAD COMPOUND TO MAINTAIN CONTINUITY All penetrations and cuts on these sump barrels should be PER N.E.C. (NFPA-70) AND TO INSURE THAT GROUND accomplished with carbide or carborundum hole saws and 5. BEDDING OF PIPE WATER DUES NOT INTRUDE THROUGH THESE JOINTS INTO blades. Ordinary cutting tools will not survive the THE CONDUITS AND, THUS, INTO SECONDARY CONTAINMENT cutting process. A minimum 6" deep compacted bed, graded to give the proper SPACES. Tslope or depth of pipe runs, must be laid in trench beforeThe sump barrel joints may be sealed €n the field without pipe runs are installed. Pipe runs should be fabricated from the tank manufacturer. All l penetration fittings must be 3. FLEXIBLE CONNECTORS/SWING JOINTS affecting the U.L. Label by ordering the sump bonding kit at grade and installed properly spaced on the completed After making g installed wet with Bostick's Chemcaulk 1000, Siliprene, RTV, necessary connections of runs, branches, Flexible connectors are to be installed at the following or fittings which must be made up in the trench, bed points; or DAP 100% Siliconized Rubber Sealant (concrete crack material should be placed back under the piping and sealer). All are compatible with gasoline and alcohol. The properly compacted. A. Between submerged pumps and fiberglass product lines. latter is normally availoble in typical hardware stores, The normal leak test for a turbine containment sump will be 6. TESTING AND INSPECTION B. Under each dispenser for both gasoline and vapor a hydrostotic test with water. However, a sealed–joint recovery as shown on installation drawings. sump with pressure–tight lid may be pressure tested to a After all lines have been installed, and before they are MAXIMUM 3 psigAFTER THE CONCRETE SLAB HAS BEEN POURED backfilled, lines are to be disconnected from the tanks, C. Underground at the base of vent risers, plugged or capped, subjected to a minimum 50 psi gauge air AND CURED. The weight of the slab is MANDATORY for safe pressure (or as required bey local or state codes) and pressure testing. checked for leaks with a 'soa " solution in the presence D. At piping connections to waste oil & fuel oil tanks. Py Contractor is responsible to provide proper clearances of the Owners representative for a minimum of 30 minutes. Swing joints of galvanized hardware are ONLY permissible in between the turbine sump, fillboxes, etc and the tank Gauges for this test should be of a range that places the 3" or 4" galvanized pipe runs (ie: remoted fills and stage risers per applicable installation drawings. Pump and fill actual test pressure in the middle third o the gauge range t i vapor connections) and ONLY where shown on applicable box manholes and/or connecting piping must be self {eg: 0-900 psi gauge fora 50-60 psi test). installation drawings, supporting and must not column–load the tank. Air testing of fiberglass piping is not a recommended A pipe swing oint shall be composed of two elbows (or 6, TRENCHING AND PIPE CHASES practice by piping manufacturers unless certain safety similar fittings and a pipe nipple. Typical approved precautions are followed. Contractors should obtain short nipples, which will allow the use of a pipe wrench on appropriate procedures from fiberglass pipe suppliers and Pp P P Trenching width must be sufficient to maintain the proper assume responsibility for following some for prescribed the body of the nipple between two fittings would be as clearances between pipes and side walls as shown on testing pressures. Their recommendations will include follows: installation drawings and of adequate depth sufficient to covering pipe between joints, placing sand bags or other provide the proper bed/cover/pitch of fines per drowincp. restraints at 'intervals and numerous safety precautions for Note that the minimum cover to finished grade over personnel working on site and/or involved in the test or PiPE NIPPLE INSTALLED product lines outside the concrete island mat area is inspection. SIZE LENGTH LENGTHS 18 inches. (in) (in) (in) Prior to making the high pressure test in the presence of Pipe chases in the concrete or asphalt paving shall be the Owner's representative, it is recommended that the 112 2 1 constructed as detailed on the drawings and as located on contractor first apply a low pressure 5 psig leak test to 3/4 2 7/8 the plot plan. The minimum spacing between adjocent pipes insure that all adapters are securely threaded into place, 1 2 1 -1/8 is 6", however piping runs may not be layered. Wherever that adhesive has been applied to every joint, and properly 1 - 1/2 2-1/2 1 -1/2 piping runs must cross, a 5" vertical dimension between cured. The low pressure leak test can be applied in a 2 3 1 -1/2 pipes should also be maintained. The exception to this short time, thus, immediately locating any badly made 3 3-1/2 1 -1/2 rule is where a branch line to a dispenser crosses adjacent joints. The line should be carefully inspected for 4 4 1 -3/4 product lines with a tee and 45 degree elbow as detailed on evidence of leakage by using a soap solution on the joints, installation drawings. fittings, and pipe walls, Once it has been determined that the line is tight, the full test pressure should be applied Where connectors ore completely contained (ie: not in All open trenches shall be, properly barricaded and and allowed to remain as long as specified. contact with ground water, native soil, or backfill designated to insure public safety. No trench shall be material), standard stainless steel connectors with one left open and unmarked overnight. After reconnection of all lines and prior to backfilling swiveling end fitting are quite acceptable. of some, the entire system, to include flanks and all Product piping and stage 11 vapor piping must terminate at lines, is to be subjected to a final air test of 5 psig Where connectors are not completely contained, ONLY anti– Containment pans under the dispensers. These pans must not maximum for approximately 1 hour without a pressure corrosion or non–metallic connectors with one swiveling end drain into or through underground piping or through the loss exceeding 1 psig, Gauges should be 0-15 psi for fitting may be used. See the Approved Materials Lists for piping containment. Any liquid trapped within the pans this test, These drawings and specifications are Shell Oil Com an 's acceptable hardware. must be removed manually and properly disposed, See 9 P P Y Approved Materials Lists for details. generic depictions of one or more components of its NOTE: Single–plone swiveling NPT end fittings use two The contractor will provide the owner s representative standard retail service station designs, They are not gasoline and alcohol compatible C–rings that seal XV-5 BEDDING/BACKFILL MATERIALS AND PROCEDURES with a certificate of testing and inspection indicating intended for use on specific projects. These drawings and as tighter pressure increases. 0–rings. are not used. that the piping and complete system has been tested in g P g specifications are the confidential and proprietary property P 1 . GRAVEL – STANDARD accordance with these specifications and has been found to of Shell Oil Company and shall not be copied or reproduced 4. VENT AND VAPOR PiPING – SLOPE OF LINES be tight and in compliance with ala state and local codes without Shell's written authorization. Standard bed and backfill material should be the some as covering such an installation, A minimum slope of 1/8" per foot is required for all that used in the tank excavation. Insure that it satisfies 7. BACKFILLING OF THE PIPING underground vent and vapor piping. However, the maximum ASTM C-33 specifications, available slope should be used within requirements for After satisfactory completion of all required testing and - cover over piping and depth of tanks. Pipe cover 2. ALTERNATE – SAND inspection of primary and secondary piping, backfilling of requirements are detailed on installation drawings. the trenches to subgrode elevation should be completed as Piping will be installed on pre–graded compacted bed Sand must be clean, wasrred, inert, well graduated and have required for the material used. p 9 P 9 p the following characteristics: material. No support or spacing material other than the If it becomes necessary during the course of construction bed and . backfill will be left in contact with the Taiping. A. Less than 8% b weight passing 200 sieve. Such REV DATE BY APPD This method of installation should prevent the possibility y g p g to switch from the standard backfill material to an p p y fines must be nonplastic. alternate such as sand, soil stabilization and filter SHELL OIL PRODUCTS of any sags or humps which would trap the fines and which fabric must be installed as a barrier between the two will not be permitted. B, 1/8" diameter or less particle size. dissimilar materials. Approval of the Shell engineer n An uncontained 3" or 4" fiberglass stage Ii vapor manifold is must be obtained before making such a substitution. COMPANY C. Free or organic material, loam, trash, snow or ice. required to interconnect tanks at the turbine end of said In freezing weather must be kept dry. --- HOUSTON, T11 tanks. This configuration is C.A.R.B. approved (see D-97004). XV-6 Actual piping connections to tanks must utilize bail float Sand is not a self compacting material and will have to valves with no–bleed nipples. These valves are NOT for be mechanically compacted in layers of 12" or less to 1 . Tanks to be gauged for product level and water. Any GENERAL SPECIFICATIONS overfill protection; they only provide added insurance achieve a minimum 90% Standard Proctor Density throughout. measurable amount of water will be removed from the system. TANK 8C WIPING minute . Do not use a concrete vibrator or water tamping.against cross--drop product contarnination. Use a mechanical plate–type vibrator (2000-3000 vibrations/ 2. All product piping is to be bled carefully for air as 5. TANK FITTINGS, MANHOLES, AND APPURTENANCES ) p g' submerged pumps are tested. System is to be tested for SHEET 3 OF 3 tightness and proper operation of leak detectors or Sand is not a se compacted materialandwill hove to be pressure sensors and impact valves after lines are bled. 3011 W. BENJAMIN HOLT DR. & FREEWAY OFF–RAMP 0,4 All fills (including remotes) are to incorporate an mechanically compacted �n layers of 12 or less to achieve p p automatic shutoff fill tube (see Approved Materials Lists a minimum 90% Standard Proctor Density throughout. Use STOCKTON, CALIFORNIA ,n 0 SCALE: NONE ENGR.: GR–MARSHALL o° c� w DATE: 4/1 /97 WIC#: L DWN. BY: GR–MARSHALL DR- 97021 0 21 — 0 0 co co CHKD. BY: L� f r.+ a, EQUILON ENTERPRISES LLC, ALL RIGHTS RESERVED 1999.