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<br />6. TANK FITTINGS_i_NANNOLES AND APPURTENANCES
<br />Contractor is responsible to provide proper clearance between tank
<br />f. BARRICADING AND DIKING
<br />L PIPING
<br />b. Flexible connectors, where called for, shell be U.L. approved with (R)
<br />PERMIT
<br />QI
<br />CNET.
<br />Contractor should check the installed tank diameter at the opening
<br />MARK DATE R■VISI?N• EY J
<br />teflon convoluted inner tube encased in stainless steel braid and
<br />Tank area must be protected with lighted barricades for safety
<br />During vibrating, piping and relating fittings, including sub-
<br />coupled with cadmium plated male pipe nipples with an integral hex
<br />SCALE
<br />OWN. my
<br />purposes and to prevent damage to the tanks. Barricades may be
<br />merged pump riser, can be installed. Do not install submerged
<br />not.
<br />IIh�
<br />removed after concrete tank pad has been installed and cured.
<br />pump until the water ballast has been removed from the tanks.
<br />clearance can be adjusted as required.
<br />Pump and fill box manholes and/or connecting piping must be
<br />Install 4' diameter FRP manway riser, 2'-6" fu length (min.) above
<br />C. All pipe, fittings, appurtenances, drop tubes (with 1/8" pressure
<br />Berms should be installed around the perimeter of the tank hole to
<br />- each tank manway. Bottom of riser should be 6" from the top of
<br />equalization hole), manholes (other than sub -pump) and valves are
<br />prevent groundwater from running into hole during construction.
<br />the tank. Seal the FRP manway riser with filter fabric material
<br />to be furnished by the contractor unless specified otherwise in
<br />depth sufficient to provide the proper bed and cover, and pitch of
<br />around the bottom of the riser P.o prevent sand intrusion into the
<br />the addenda or equipment list.
<br />S. ROCK AND WATER
<br />-
<br />riser space. FRP manway riser may be cut to desired depth by
<br />chases in the concrete or asphalt paving shall be constructed as
<br />detailed on the drawings and as located on the plot plan. The
<br />sawing (std. mfg. length is 3'-61
<br />d. Dispensers or self-contained pumps are furnished with a 1-1/2"
<br />Where a rock ledge or uncontrollable water condition is encountered in
<br />threaded union at the inlet piping connection.
<br />the course of excavation, the contractor shall advise the Shell
<br />g BACKFILLING TO_SU8_-GRADE
<br />adjacent product lines with a tee and 450 elbow as shown on the
<br />Engineer immediately and not proceed with the excavation until
<br />XV -4 PIPING INSTALLATION
<br />determination and agreement is made as to the handling of this work and
<br />1) Complete the backfilling to sub -grade with washed clean sand
<br />overnight.
<br />KV -5 BED
<br />the anchorage of tanks. Soft shale or boulders smaller than 1-1/1 cu.
<br />in 18" layers using water to compact.
<br />1. FIBERGLASS PIPE
<br />yds. that can be removed or handled by a power shovel shall be
<br />aggregate, clean and free flowing, with particle size not less
<br />considered part of the excavation contract and will not be considered
<br />2) CAUTION! Tanks may rise while ballasted if backfill is nor
<br />Storage and handling, stringing, joining, layout and preparation
<br />rock ledge. Contractor shall do all dewatering and pumping required to
<br />placed over the tanks and the excavation is flooded by rain
<br />for installation, cutting, tapering, bonding, curing, adaptors to
<br />remove accumulations of surface water from excavated areas at no
<br />or ground water. Water standing on top of the tanks could
<br />steel piping or flexible connectors shall be in accordance with
<br />additional cost. Underground seepage that can be controlled with a
<br />produce a hydraulic action on sand and move the tanks.
<br />manufacturer's instructions or recommendations. Contractor must
<br />single two inch diameter construction pump will not warrant an extra
<br />Insure against this possibility by having the tank hole
<br />be familiar with such practices and procedures and follow same
<br />charge for pumping. If additional pumping equipment, well pointing or
<br />backfilled to ane -grade or keeping the excavation dry from
<br />unless certain instructions which are specifically covered in
<br />sheeting is required, the contractor shall notify the owner immediately
<br />midpoint of tanks to subgrade by pumping during piping.
<br />these specifications, i.e., pipe burial, seem to be at variance.
<br />regarding the problem, with recommendations for handling and an
<br />In such case, Shell's specification will be followed.
<br />estimated extra cost to complete the work with appropriate unit prices
<br />3) After the sand has been brought to sub -grade, lower water
<br />C. Free or organic material, loam, trash, snow or ice. In
<br />for material, labor and equipment.
<br />level in the tank hole to a level below the top of the tanks
<br />All unconnected pipe stubs or runs shall be protected during
<br />mechanically compacted in layers of 12" or less to achieve a
<br />by pumping from the pipe sumps or well point system.
<br />construction against the intrusion of dirt or other foreign
<br />6. WATER LEVEL CONTROL
<br />material into the piping system. Protective caps used in shipping
<br />4,
<br />STORAGE AND HANDLIN4 OF BED BACKFILL MATERIAL ON SITE'
<br />h.UQ ALITY CONTROL MEASUREMENTS
<br />the pipe are suitable if taped in place.
<br />Water level should be maintained at or below tank hole bottom during
<br />- - -
<br />gravels could result in need for mechanical compaction of the
<br />the initial phases of the installation. A sump and pump or a system of
<br />1) After completion of backfill and sub -grade compaction, remove
<br />Where repairs are found to be required during construction or
<br />well points and pumps is the recommended method to control water level
<br />tank water ballast, enter tanks through manway and sponge dry
<br />after testing or inspection, the defective portion of the piping
<br />in the hole. The type of system required will depend on water flow
<br />interior of tanks. CAUTION! fiberglass tanks should be
<br />shall be removed and replaced with appropriate new pipe and
<br />rate into the hole.
<br />cleared of styrene vapors prior to entering for installation
<br />fittings. Repairs such as a sleeve type line patch over a damaged
<br />inspections. If an order is present after the water has been
<br />pipe or a glass cloth and adhesive build-up over a joint or
<br />7. INSTALLATIONPROCEDURE
<br />removed from the tanks, a respirator and goggles should be
<br />fitting are not acceptable on new work.
<br />worn by anyone entering the tanks. Contact the District
<br />a. PREPARATION OF_TANK HOLE
<br />Engineer for the proper safety procedure.
<br />Based on criteria available from manufacturers we have selected
<br />the following minimum bending radii for 2" - 4" pipe, which will
<br />I) The hole bottom should be level and free of rocks and debris.
<br />2) While the tanks are empty, the water table must not be
<br />simplify any field calculation for installation of a bead if one
<br />allowed to rise higher than the top of the tanks in order to ,
<br />is required.
<br />2) All dry soil conditions: Line tank hole with a clear 8 mil
<br />prevent a float -out situation.
<br />polyethylene liner, draping the liner beyond the top edge of
<br />2. PIPE DIAMETER 2" 3" 4"
<br />the hole at least 4'.
<br />3) In each tank the Shell Engineer and Contractor shall measure
<br />the vertical, horizontal and bottom flattening dimensions at
<br />Minimum Bending Radius (Ft) 57 86 115
<br />3) Spread 12" bed of washed sand at a 2"-4" slope toward the
<br />both ends and 1/3 distance from each end of the tank. Record
<br />Pipe Length/Degree of Bend (Ft) 1 1-1/2 2
<br />fill end in the position where the tanks are to be set. Two
<br />the measurements on the inspection form provided.
<br />(Example -150 Bend -Pile Length (Ft) 15 22-1/2 30
<br />foot wide strips on the center lines of the tank positions
<br />are sufficient. Washed sand shall have no more than 5" fines
<br />4) Tank meaaureients not meeting the minimum specifications must
<br />To check maximum deflection use the following information as a
<br />f
<br />q wetiht passing the No. 200 sieve size be well graded
<br />be reported twediately to the tank manufacturer before the
<br />guide:
<br />_and
<br />(SW, Unified Soil Classification).
<br />tanks can be placed in service.
<br />w
<br />4) Inspection wells and water level control sumps: Place two
<br />i. FINISH_CRADE,
<br />MIN. LENGTH MAX.
<br />12' sections of 4" slotted (.020" slots or wrap pipe with
<br />PIPE SIZE BENDING RADIUS OF PIPE DEFLECTION_
<br />filter fabric when using larger pipe slots or drilled 3/4"
<br />1) Install an 8" reinforced concrete tank slab with an 8 mil
<br />diameter holes) PVC pipe as manufactured by Hydrophilic
<br />polyethylene barrier between the backfill and slab.
<br />2" 57' 15' 24"
<br />Industries. Inc., or approved equal, vertically, in opposite
<br />3" 84' 15' 16.2"
<br />corners of tank hole. Install two 12" perforated PVC pipes
<br />2) Insure proper street reinforcement is installed as shown 1
<br />4" 108' IS' 12.6"
<br />(3/4" diameter holes - 48 holes per lineal foot of pipe) in
<br />including the additional reinforcement at the manholes.
<br />tank hole as shown in Shell drawing DR -81047. All PVC pipe
<br />MALLEABLE 3. GALVANIZED STEEL PIPING (GALVANIZED MALE IRON FITT'.INGS
<br />_ ._. )
<br />to be schedule 40.
<br />J. INSTALLATION CHECKLIST AND INSPECTION FORM
<br />_ _INTERNAL
<br />_.Galvanized steel piping has been selected to be used in conjunc-
<br />5) Tape or wire to one of the 4" pipe sumps a 2" PVC solid pipe
<br />A completed "Installation Checklist and Internal Inspection" form
<br />tion with fiberglass piping at such locations where size of the
<br />with slotted (.020") perforation on the bottom 12" of the
<br />is to be provided the Shell Engineer for approval on completion of -
<br />piping, complexity of the arrangement, structure, or aboveground
<br />This is to be determine the sand is
<br />the tank installation.
<br />application precludes the use of fiberglass material.
<br />pipe. pipe used to when
<br />adequately saturated during the water compaction and
<br />vibration process.
<br />_
<br />All joints of piping shall be made up with an approved gasoline
<br />pipe compound or teflon tape. The latter is preferred. (Litharge
<br />%V - GASOLINE PIPING SPECIFICATIONS
<br />and glycerine are not approved). All unconnected pipe stubs,
<br />b. SETTING TANKS
<br />----- ----
<br />risers or runs shall be capped right to prevent tampering or
<br />Set tanks on a 12" sand bed or strips and insure the spacing of
<br />KV -1 GENERAL
<br />intrusion of dirt. The use of a filler material, such as plumbers
<br />the tanks is at least 2'-0" from hale side walls and 2'-0" from
<br />,;
<br />strias in making uimproperly
<br />g, g p a pipe joint when threads are cut
<br />adjacent tanks. (Note: See 4.b. for unstable wall condition)
<br />The contractor accepts full responsibility for
<br />p p y proper handling and
<br />is unacceptable.
<br />installation of the fiberglass or galvanized steel piping and shall r
<br />Vent risers, gasoline (or vapor) risers under dispensers, tank
<br />C. BACKFILLING
<br />insure that good workmanship practices and construction procedures are
<br />risers (and manifolds) shall be in accordance with the drawing
<br />followed throughout the installation, regardless of the inclusion ordetails.
<br />1) Backfill with washed sand to the top of the tanks.
<br />omission of any applicable suggestion in these instructions or on the
<br />"
<br />2) Record the elevation of the top of the end rib on each end of
<br />drawings.
<br />4. FLEXIBLECO_NNECTO_RS/_SWING JOINTS
<br />all tanks.
<br />Unknown situations or conditions not covered in these instructions are
<br />Flexible connectors or pipe swing joints are to be installed at
<br />the responsibility of the contractor. Manufacturer's specialists are
<br />the followingpoints.
<br />D
<br />J) Fill each tank to the midpoint with water.
<br />available for consultation. The presence of a Shell or Manufacturer's
<br />-
<br />4) With a 3" fire hose, thoroughly wet top layer of backfill
<br />representative at an installation site does not relieve the contractor
<br />a. Tank connections to vents or vapor lines.
<br />p
<br />of the responsibility for a
<br />p y proper installation.
<br />over tanks with 1,500-2,000 gallons of water to obtain
<br />incremental compaction, Caution must be taken to not place
<br />The contractor shall be responsible for proper safeguarding of the
<br />b. um Submerged s.
<br />g pumps.
<br />more than 2.00 allons of water in tank hole at this time.
<br />- 8_.-__.___ ._. -_ -
<br />installation and materials and equipment stored on the site to prevent
<br />C. Between riser(s) under each dispenser and fiberglass
<br />5) Complete filling tanks with water.
<br />theft, vandalism or damage.
<br />pipe
<br />gasoline or vapor as may
<br />runs for either 8 p y be required.
<br />d. WATER JETTING
<br />XV-2 SCOPE -OF WORT( -
<br />d. Underground at base of vent risers - pipe swing joint only.
<br />The piping system to be installed under this section will include
<br />Flexible connectors should not be used for making900 bends in (R)
<br />1) Using an 8' long 2" FRP pipe attached to a J" hose and
<br />product and vent piping and applicable vapor piping as shown on the
<br />pressured water supply, saturate the bottom 72" layer of sand
<br />r or covered in the addenda to these specifications or on the
<br />the piping system, however may be used for some res of mise 11 den -
<br />g g
<br />between ever other rib and two points under each end ca
<br />Y P P�
<br />plot plan
<br />related piping drawings. Included are appropriate connections and
<br />went.
<br />Probe the jetting pipe fully into sand. This will wash sand
<br />appurtenances to the installed equipment in the complete system, e.g.,
<br />into existing voids. Atter water Docks up to surface around
<br />underground tanks, pumps, dispensers and indicated vapor control or
<br />Flexible connectors should be installed so that there is no radial
<br />the jetting pipe, slowly remove the pipe and allow the sand
<br />recovery equipment. Contractor should refer to the plot plan for the
<br />stress or twist in the hose when joints are assembled.
<br />to wash into the hole created by the pipe. Care must be
<br />orientation of connections at tanks and pipe chases for piping.
<br />taken to prevent any s_tandinj water above the sand backfill
<br />A pipe swing joint shall he composed of two elbows (or similar
<br />during installation.
<br />%V-3 PIPING
<br />fittings) and a pipe nipple. Close continuously threaded nipples
<br />_HATF.R/ALS
<br />are not acceptable for underground installation. Typical approved
<br />2) Use a gauge stick in the solid 2" PVC pipe to measure the
<br />A. Standard suction/pressure and underground vent or vapor piping
<br />short nipples, which will allow the use of a pipe wrench on the
<br />water level. (See 7.a.4) above)
<br />, shall be Underwriters Laboratory, Inc. (U.L,) approved Reinforced
<br />body of the nipple between two fittings would be as follows:
<br />Thermosetting Resin Line Pipe (RTRP), molded fittings and
<br />Pipe Di. (") 1/1 3/4 1 1-1/2 2
<br />D u
<br />3) Sand mot be saturated with water to a level of 72" from
<br />adapters. Refer to the Approved Material List for currentapproved
<br />3 4
<br />Length 2 2 2 2-1/2
<br />bottom of tank hole before mechanical vibration of sand can
<br />suppliers and type of grade of system to be used. Fill
<br />3 3-1/Z 4
<br />begin.
<br />ApproxNipple
<br />Installed
<br />pipes end other vertical risers et tanks, vent risers, and risers
<br />Length.
<br />Length (") I 7/8 1-1/8 1-1/2 1-1/2 1-1/8 1-3/4
<br />under dispensers or vapor equipment shall be standard galvanized
<br />e. MECHANICAL VIBRATION OF SAND
<br />-- -
<br />steel pips with fittings standard galvanized malleable iron.
<br />S. VENT AND VAPOR PIPING -SLOPE OF LIKES
<br />Galvanized malleable iron unions, where called for on the detailed
<br />Use a single 1-1/2" hose vibrator and vibrate three points around
<br />drawings shall be ground joint construction with brass/brass seat,
<br />each end e� and one point between each Vibrate sand between
<br />P /8" foot is required in all underground
<br />A minimum alma a o[ 1 p q 8
<br />_rib
<br />tanks at each rib section. Hose must be worked through sand to
<br />150# for above round and 250/300# for below round applications,
<br />g g PV
<br />we
<br />vent and vapor piping, however, the maximum available slope should
<br />the bottom of Che tank hole. Allow vibrator to vibrate down, to
<br />Galvanized malleable iron coupling$, where required are to be
<br />b< used within requirements for cover over g p
<br />9 piping and depth of
<br />the hole bottom and [hen after 30 seconds withdraw the hose and
<br />extra heavy duty. threaded steel pipe
<br />close, round,
<br />tanks. Pipe cover requirements are detailed on the drawings.
<br />P 9
<br />repeat the until all the an has been vibrated Do not
<br />h s L 1 sand a
<br />Join
<br />nipples are to be used underground. Joints
<br />used steel piping shell
<br />Piping will be installed on pre -graded p
<br />led tom acted be m
<br />P 8 d scarier. N
<br />P B o
<br />process
<br />p pr _
<br />use vibrators Lamer than 11/2" 00., more than one vibrator .
<br />be made up with •n approved gasoline pipe compound or teflon tape.
<br />mp
<br />o
<br />support or spacing materiel other than the bed and back Piil will
<br />After vibrating, check for tank movement by recording the eleva-
<br />be left in contact with the piping. This method of installation
<br />on the end ribs of she tanks.
<br />should prevent the possibility of any sage or humps which would
<br />,tions
<br />trap the lines and which will not be permitted.
<br />U
<br />e] I::,r_._u L- .nII— eau+m:e,vu:uvursu.—mu,.w...«a—....sFi..e...n. .......,....-v ..............-.....-....
<br />6. TANK FITTINGS_i_NANNOLES AND APPURTENANCES
<br />Contractor is responsible to provide proper clearance between tank
<br />NOTE:
<br />NOT ALL SECTIONS OF THESE SPECIFCATiONS .
<br />APPLY TO THIS JOB. REFER TO PLANS FOR
<br />APPLICABLE SECTIONS.
<br />n
<br />shell and submerged pumps or fill tubes. (Refer also to tank
<br />-
<br />installation specifications, Section x[v, paragraph 14).
<br />PERMIT
<br />QI
<br />CNET.
<br />Contractor should check the installed tank diameter at the opening
<br />MARK DATE R■VISI?N• EY J
<br />into which the pump or tube is being installed and make necessary
<br />adjustments to maintain the specified clearance of 4" (max -5").
<br />When installing fillboxes or vapor adaptors, contractor should
<br />SCALE
<br />OWN. my
<br />provide a minimum of 3" (max. -4") clearance between the top of the
<br />cap and bottom of the manhole cover. The drawings call for a
<br />IIh�
<br />coupling to be installed near the top of each riser so that this
<br />clearance can be adjusted as required.
<br />Pump and fill box manholes and/or connecting piping must be
<br />self-supporting and not contact the tank. Do not place any
<br />spacing material on the top of the tank for any reason.
<br />7.
<br />TRENCHING AND PIPE CHASES
<br />Trenching width will be sufficient to maintain the clearance
<br />between pipes and side walls as shown on the drawings and of a
<br />depth sufficient to provide the proper bed and cover, and pitch of
<br />lines. Note that the minimum cover to finish grade over product
<br />lines outside the concrete island mat area is Winches. Pipe
<br />chases in the concrete or asphalt paving shall be constructed as
<br />detailed on the drawings and as located on the plot plan. The
<br />minimum spacing between adjacent pipes is 5", however piping runs
<br />will not be layered. Where piping runs must cross, a 5" vertical
<br />dimension between pipes should also be maintained. The exception
<br />to this rule is where a branch line to a dispenser crosses
<br />adjacent product lines with a tee and 450 elbow as shown on the
<br />detail showing the dispenser piping.
<br />All open trenches shall be properly barricaded and designated to
<br />insure public safety. No trench shall be left open and unmarked
<br />overnight.
<br />KV -5 BED
<br />AND BACKFILL MATERIAL
<br />1.
<br />GRAVEL - STANDARD
<br />Standard bed and backfill material should be naturally -rounded
<br />aggregate, clean and free flowing, with particle size not less
<br />than 1/8" or more than 3/4" in diameter. Use this description
<br />when specifying or ordering because material is known by different
<br />areas. This material is commonly called pea gravel. This is, the
<br />some material as specified for the tank installation and is
<br />classified as a self -compacting material. ,
<br />2.
<br />ALTERNATE - STONE OR GRAVEL CRUSHINGS
<br />Stone or gravel crushings with angular particle size not less than
<br />1/8" or more than 1/2" in diameter, washed and free flowing is
<br />acceptable as an alternate material, This material must meet ASTM
<br />C-33 paragraph 9.1 requirements for quality and soundness and to
<br />also classified as a self -compacting material.
<br />3.
<br />ALTERNATE - SAND
<br />Sand must be clean, washed, inert, well -graduated and have the
<br />following characteristics:
<br />A. Lens than 81 by weight passing 0200 sieve. Such fines must
<br />be nonplastic.
<br />b. 1/8" diameter or less particle size.
<br />C. Free or organic material, loam, trash, snow or ice. In
<br />freezing weather must be kept dry.
<br />Sand is not a self -compacting material and will have'to be
<br />mechanically compacted in layers of 12" or less to achieve a
<br />minimum 90% Standard Proctor Density throughout. Use a mechanical
<br />plate -type vibrator (2000-3000 vibrations/minute). Do not use a
<br />concrete vibrator or water taping.
<br />4,
<br />STORAGE AND HANDLIN4 OF BED BACKFILL MATERIAL ON SITE'
<br />Do not allow bed/backfill material to intermix with an excavated
<br />soil or other material on site. Contamination of self -compacting
<br />gravels could result in need for mechanical compaction of the
<br />minimum/maximum particle sizes specified are critical for self -
<br />compaction.
<br />In freezing conditions materials must be kept dry and free of ice.
<br />NOTE:
<br />NOT ALL SECTIONS OF THESE SPECIFCATiONS .
<br />APPLY TO THIS JOB. REFER TO PLANS FOR
<br />APPLICABLE SECTIONS.
<br />n
<br />CATS APFAWC
<br />PRELIM.
<br />-
<br />PERMIT
<br />QI
<br />CNET.
<br />MARK DATE R■VISI?N• EY J
<br />311NORAL SPINPICIFICATIONS FOR
<br />M093UL,AR CONS'T`RUCTION '
<br />14446 No PERSHING AVENUE
<br />STOCKTON, CA.
<br />SHELL OIL COMPANY
<br />IC N RTHW ■T DISTRICT
<br />PACIp O ■
<br />0W.I,C.*4,
<br />SCALE
<br />OWN. my
<br />,,
<br />4
<br />RHL/ 649 1' :
<br />20 J ?4-24.
<br />ROBERT H. LEE & ASSOCIATES, INC.
<br />AAOMITNDi49N PLANNING' ANnlNSRRINm
<br />1909 NOW&AVaNUW,0011, mACRAMmNTO, CA 2681815. 16101 moa 9003
<br />IIh�
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<br />}arp�aJn7.
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