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5
<br />XiIi-5 WATER WELL C. SAori�of the tank hole walls (A) 2. UNSTABLE WALLS
<br />Caution: Bricks or blocks used to support piping must be
<br />When public water supply is not available this cork will include This method may be required at times in order to protect Those with soils having len than 750 lbs/sq ft. cohesion as removed prior to filling to grade. Do not use rock, shale,
<br />the ng asashow and specified er pumping equipment, controls and existing structures during tank removal and replacement debris or any excavated material for fill.
<br />piping a• shorn or specified herein; it rill also include or to limit the size of the excavation on small an
<br />an ultimate
<br />from in unconfined compression test, lb colla v[[h
<br />furnishia working and shop drawing, testing, and operation +n ultimato bearing capacity of leu than 3,500 16a/sq (t. 5. BARRICADE
<br />8 g P B, B, p properties. With this method, either sand with water Hole must be large enough to allow minimum of 1/2 the. tank
<br />services. � compaction or pugnvel may be used. diameter from ends and sides of tanks to hole walls. A
<br />qualified soil testing laboratory can provide data and Tank area must be barricaded to prevent any vehicle travel
<br />Thee and l Contractor well obtain all permits and comply with all FOR ADDITIONAL INFORMATION recommeadatcons. Refer also to Section 10, "Poor Soil over the tanks until the minimum cover depth exists. See
<br />cased and local requirements4"ATfor the construction pe a s(ag)e Conditions." Section 5, burial depth and cover/traffic loads.
<br />caned well using 4" ASTM Spec. A -SJ schedule 40 pipe. Well casing Questions regarding installation procedures or tank repairs should be•
<br />to be maximum 3" below finished grade with an IB" dia. manhole directed to the Shell engineer. 3. HOLE DEPTH Berms should be installed aroumd the perimeter of the tank
<br />frame and cover. Screen will be of Everdur metal of continuous Bole to prevent installed * from running foto hold during
<br />"V" slot or louvre construction. Slot Area will be selected by 1. CONTRACTOR ACCEPTANCE INSPECTION
<br />Contractor to conform with water -bearing stratum encountered. Burial hole must be deep enough to allow a minimum of 12" construction.
<br />Assume 150 foot depth. The Contractor will furnish and install a The contractor is responsible for inspection for damage in ship- backfill bed over the hole bottom or concrete slab. Tanks XIV -7 INSTALLATION PROCEDURE--WET-HOLE
<br />Reds 3/4 by submersible single phase pump or turbine well pumping- should have a minimum cover depth of 3'-6" including 8" of
<br />mens according the should
<br />be rep included he the tank shipment. reinforced concrete mat.
<br />else, electrically driven
<br />, to rated those
<br />tory we -ell, All Any discrepancies should be reported to the Shell engineer. Anchoring 1s required.
<br />electrical corrections, /od uding [hose to power lines, motor and
<br />controls, and the setting of controls will be made by others. 2. TESTING 4. PAD DIMENSIONS I. WATER LEVE•
<br />The Contractor will furnish and install all water and drainage
<br />Reinforced concrete paving oust extend at least 2' beyond Water level should b< maintained ted at the lowest radical
<br />Allwilli All Banka must be vented a tanks are designed for operation at tank outline /n all directions, as • single slab. Provide �__
<br />piping and valves as shown. pec Piping and valva "Water
<br />conform atmospheric pressure only. 3/4" thick expansion level during installation. A sump and pump or a
<br />with applicable portions or specifications for "Water Distribution D joint all around slab for • 3 -tank - yst tm of
<br />welt points and pumps is the recommended method to minimize
<br />System." A hot a dipped galvanized
<br />12 or glans capacity
<br />galvanized Plugs and drop tube fittings are not shipmened at the plant to system. Slab three -tank
<br />ee be g" thick will
<br />6•' x b" 4/4 welded wire water level in the hole. The type of system required will
<br />pressure tank at not less than 120 gallon capacity rill be alloy for temperature change doting shipment. fabric. A three -u nk slab will be cast with two longitud(mal
<br />depend on water flow rate into the hole. The hole bottom
<br />installed in storeroom. construction joint@, keyed and dowelled. Dowels to be p4 should be level, free of rocks and debris and covered with at
<br />deformed round steel bars 30" long and placed approximately least 12" of backfill material.
<br />Prior to setting tank, the contractor is responsible for making an 48" an center in the center of the slab. Place an 8 mil (See Section 16 - "Petmanent
<br />The General Contractor well guarantee that the water production as aerostatic leakage test at a pressure not exceeding 5 psi. Test polyethylene barrier over completed backfill before pouring Pipe Sumps").
<br />shown by ngofficial test is not a temporary dat condition , and if a[ any to be conducted for a mioimum of one hour without a measurable the slab,
<br />time during a Period er one Contractor
<br />from date stat, production loss of pressure. Tank under pressure should not be left 2. BALLAST
<br />falls below test, General a owner. r will reinstate the valla unattended. Use pressure gauge with full scale of not more than 5. MAXIMUM BURIAL DEPTH capacity at not cm[ to the ower. 25 psi. Isolate tanks from piping when pressure testing any Place tanks in the hole, adding only enough ballast to sink
<br />PP Depth
<br />XIII -6 NATURAL GAS
<br />Piping Do not approach ends of tanks or manvays that are under Depof cover for tanks of 10' or less in diameter in both them. Ballast level in tanks mot never exceed water level
<br />in hole during installation. While adding ballast, use only
<br />' seat. Tanks under pressure should not be left unattended, traffic and non -traffic conditions oust not exceed 7' over
<br />tank top. lifting cable to keep tanks in position. Tanks should be
<br />When required er Addenda to [heel Specifications [sons or indicated on While tank is under pressure, the entire tank, including fittings, free to roll slightly. The lifting cable must carefully
<br />Plod ce co General Contractor bull install supply line from close[ should be vetted with a "son p tended.
<br />service connection to rear of building. Size of line to be not solution t. inspect for manor X(V-5 ROCK AND WATER
<br />leaks wales otherwise might not be evident. A garden tank -type
<br />determined by local regulations and demand factor. All work to be sprayer with "Seam Test Solution" manufactured by Winton Products, Where a rock ledge or uncontrollable water condition is encountered Caution: Do not place tank' on timbers, beams or cradles.
<br />done in conformance with local codes and supply utility require- Charlotte, North Carolina, is recommended for this purpose. An in the course of excavation, the contractor shall advise the owner
<br />rents. See Section IX -5 for piping specifications. alternate acceptable solution would be one (1) cup of dishwashingimmediate) and not 3. LEVEL TANKS
<br />y proceed with the handling
<br />until a work
<br />andi the
<br />detergent such as Dove or Ivory Liquid in a gallon of .wale r. tion and agreement is made t to the handling o[ this bort sad the
<br />XIV. FIBERGLASS UNDERGROUND STORAGE TANKS While leveling tanks, insure that minimum distances between tanks are maintained. When Anchoring, d
<br />anchorage of tanks. Soft shale or boulders smaller than 1-1/2 cu. If tanks are dropped or impacted after initial test, retest tanks yds. that can be removed or handled by a power shovel shall be g, place straps over
<br />INSTALLATION SPECIFICATIONS_ and soap areas of impact to check for tank damage. If damage has considered as part of the excavation contract and will not be tanks and follow procedures in Section 9..4_
<br />PEAGRAVEL BACKFILL occurred, do not a_ttfmpt repairs. Contact the Shell engineer. considered as rock ledge. Contractor shall do all dewatering and 4. BACKFILLING
<br />(Revised Novabe r, [981) pumping required to remove accumulations of surface water fro,
<br />-%t V-2 HANDLING excavated areae at no additional cost. Underground seepage that -
<br />XIV -1 GENERAL
<br />can be controlled with a single two inch diameter construction Distribute backfill evenly around tanks and continue
<br />A fiberglass tank weighs approximately 1/4 the weight of a pump will not warrant •n extra charge for pumping.1[ additional Procedures outlined for dry hole installation.
<br />comparable steel tank, so it is easier to handle. This tank is pumping equipment, well pointing or sheeting is required, the
<br />Thy contractor accepts full responsibility for proper handling and ruggedly built and has been designed to withstand normal handling, contractor shall notify the owner immediately regarding the XIV -8 ANCHORING
<br />installation of the fiberglass underground storage tanks and shall however, the following precautions shall be taken: problem, with recommendations for handling and an estimated extra
<br />insure that good wed duringp, practices and construction
<br />io pro- cost to Complete the work with appropriate unit prices for Tanks must be anchored where high water tables exist, surface
<br />tanks,
<br />are followed during the handling and installation apt of the 1. CHOCK TANKS material, labor and equipment. water could flow into hole or other water conditions could exist
<br />cotta, raga [milts of the inclusion or omission of any applicable
<br />suggestion in these instructions. Tanks should not be dropped, rolled, or impacted. Chock the tanks XIV -6 INSTALLATION PROCEDURE - to a dry hole.
<br />__DRY KOLE ,
<br />until ready for installation and tie them down ,f high winds are - I. HOLD DOWN STRAPS
<br />Unknown situations or conditions are covered in these instructions expected. Use minimum 1/2" diameter nylon or heap rope over each Anchoring is recommended in clay, or if high water table exists,
<br />are the responsibility of the contractor. Manufacturer's tank and tie to wooden stakes of adequate size to prevent tanks or if water problems could develop after tank is installed. (See Use preformed fiberglass hold-down straps furnished by tank
<br />specialists are available for consultation. The presence of a from being moved by high winds. "Float -out," Section 13.) fabricator on tap of designated ribs. Anchor points should
<br />manufacturer or Shell observer re an installation don ante don not
<br />, be 5' from the center line of 8' diameter tanks (6' for 10'
<br />relieve the contractor of this responsibility for proper inatalla- 2. LIFTING TANKS
<br />tion on the tank. 1. BED diameter tanks) and aligned with designated ribs fi". Do not.
<br />- use straps or cables against the tank shell between the ribs.
<br />Use installation lift lug(s) to lift insure
<br />l On 1gle o and 20,000 Bed under tanks should be a minimum of 12" thick over the Attach hold-down straps to anchor points with 1/2" diameter
<br />Fiberglass undergHFPAround tanks must be installed ay apply to these gallon tanks, use spreader bar co insure lift angle of at leas[ hole bottom or concrete slab, if used. Bed should be sloped 6 x 19 plow steel wire rope loops using at least two cable
<br />instructions onsuted and slur 30 and ll. Local codes may apply and should 45° at each lift Lug. Guide the tank with guidelines. Do not use between 2" and 4" coward the (ill at end of tank unless clamps. All straps should be tightened with turnbuckles to
<br />be consulted. Failure Co follow these installation instructions chains or cables around tanks. If tanks have to be moved, (do not center fill is used, and in which case bed should be level. give a snug fit of strap to tank rib. Turnbuckle diameter to
<br />,Ill void the warranty and may result in tank failure. Proper roll) set on smooth ground, free of rocks and foreign objects, and Settingofscreeds is recommended for establishing smooth, be 1-1/4" hook type or 3/4" eye type.
<br />installation of fiberglass underground tanks helps to prevent tank rechock. Capacity of lifting equipment must be checked before properly pitched beds. Place tanks in hole on bed, after
<br />damage and to insure long-te rs corrosion -proof service. It is installation. 1 2. ANCHOR POINTS
<br />screeds have been removed. Do not place tanks on tubers,
<br />imperative to read, understand and follow the instructions below.
<br />Fiberglass underground tanks require the backfill material Co beams or cradles.
<br />3. TANK OPENINGS, Anchor points to be fabricated from round steel bar stock of
<br />2. HIGH WATER anchor bolt grade steel, formed as show in the drawing
<br />provide as much as 90% of the tank support under certain stress Tank openings shall remain closed, but tanks vented during - detail. Use 1" diameter for two task anchor and 3/4"
<br />conditions. The installing contractor must be positive he has the handling and up to the time when pipe connections are made to Tanks, whether strapped or not, must never be lett on the bed details[ for one tame.
<br />correct bed and backfill and follow, these instructions exactly. prevent the intrusion of water and/or foreign matter, All unused without backfill to the top of tank it there is any chance of
<br />openings are to be permanently plugged when piping ,s being more than 12" of water in the hole. (See "Float -out" 3. UEADMAN ANCHORS
<br />- Excavations, Trenching, (A) installed.
<br />"OSHA Construction Standards, Subpar[ P
<br />and Shoring" (Exhibit "A") covers the pertinent general and Section Lt.)
<br />The weight of backfill above a deadman on each side of a tank
<br />specific safety requirements. XIV -3 BED AND BACKFILL MATERIAL 3. BACKFILLING to which they are anchored provides the additional hold down
<br />force required to prevent float -out under the most adverse
<br />Our nsga do not and cannot depict all the various coil (A) 1. GRAVEL Use the same materials as bedding. At start of backfilling conditions. For 10,000 gallon tanks buried a minimum of
<br />conditions which tend to govern the U
<br />e appropriate aeons Co use [o -- ----- —
<br />rare must be taken no push backfill
<br />Provide sate working conditions within an excavation for under- Standard bed and backfill material should be a beneath tank bottom, material completely 7'-6", deadmen should be a minimum of 27 feet long by one (I)
<br />between _ribs and under end_ ca s to foot wide for one side of one tank or two (2) feet wide for a
<br />ground tanks. The OSHA standards are reasonably specific on nstu5ally-rounded aggregate, clean and free-flowing, with govdd< necessar_Y support. A board or similar device should dust anchor between two tanks. A table on the anchoring
<br />such
<br />r standards but are not that clear regarding an excavation Particle size not less than 1/8" or more than 7/4" in be used to push backfill under the tank, since pea gravel or detail droving shows anchor spacing and deadman length for
<br />mach as required for tanks. diameter. Use this description when specifying or ordering stone crushinRs will not flow into this area. (See installs- various sixes of 8' diameter tanks. The drawing also details
<br />because material is known by different names in different tion drawing). Good compaction can be obtained by slicing a method of prefabricating reinforced concrete deadmen at
<br />There are several means available to Shell and the General (A) areas. This material is commonly called pea gravel. the gravel with a shovel all around the perimeter of each grade which can be lowered into the tank holes after they
<br />Contractor to onditio compliance and, most rimportantly,
<br />ec to provide tank. Install the first 12" in two 6" layers, have cured for a minimum of seven � days.
<br />safe working conditions. The Shell Engineer will select the more 2. STONE OR GRAVEL CRUSHINGS ,
<br />appropriate and cost effective method to be used from one of three _-"-
<br />approved options. The method chosen will be noted in the Stone or grave] crushings with angular particle size not less Unanchored tanks installed with backfill to the top of the NOTE:
<br />section of these specifications or checked oft beside tank but without backfill to grade should be filled with
<br />than 1/8" or more th
<br />"Addenda" tan 1/2" in diameter, washed and free- product or water as ballast. Do not add ballast do tank NOT ALL SECTIONS OF THESE SPECIFCATIO N$
<br />one of the following alternatives: flowing, is acceptable as in alternate material. This before backfill material in even with top o[ trent, APPLY TO THiS JOS. REFER TO PLANS FOR
<br />material suet meet ASTM C-33 Paragraph 9.1 requirements for - - ---
<br />A. Peagrsv<1 backfill with appropriate sloping of aid Its (A) quality and soundness. Complete backfilling to tap of tank. Be sure becikfill to APPLICABLE SECTIONS.
<br />[o ,the angle of repose free of large rocks, debris or foreign materials that could _
<br />Caution: In freezing conditions, backfill must be dry and damage the tank. Avoid impacting tanks during backfilling.
<br />Revised Drawing No. AR -83021-1 depicts appropriate free of ice. Do not use other backfill materials. In areas '
<br />where specified materials are not available, contact the OAT[ APgVsO
<br />excavation for average ,oil conditions, so that the Attempt to minimize time Contractor employees are in tank (A) Plait Ll M.
<br />the tank
<br />anew could enter the r tank con to grade Shell engineer for instructions. hole. When men are in the hole, supervisors must be present -"-^--
<br />the tank bed and complete the under tank compaction on top. Cave-ins are a danger during installations. Use all P11gMIT
<br />work. The 1:1 slope depicted could be more or less Do not allow backfill material to intermix with a� excavated preceu[iona wham men are in the hale, ps rt il'b la rl}y the edges Alp
<br />depending on actual soil conditions. This option soil at the site. It this should occur, mechanical corpse- between sank hole wall and the tank. MARK OATH q■V1S1?N• •V OO NifT.
<br />demands a rush larger excavation at grade, even though tion of the backfill will be required. The minimum article
<br />the additional material to be excavated and replaced may size of 1/8" (No. 6 sieve) to critical for "self -compacting 4. LEVELING TO GRADE _ Q " N� AAi• SPECIFICATIONS POLI
<br />to only 100-200 cubic yards. size mill. -- -_
<br />�B. Sand backfill with water compaction (A) XIV -4 HOLE SIZE, BURIAL DEPTH AND COVER 'Excavation should be brought to grade with pea graivel or^®��a� CONSTRUCTION T���t O w,
<br />s stone or gravel crushings meeting the specifications shown in mal C S gig
<br />Using this method, tanks may be set, bedded and back- 1. STABLE WALLS Section 4, as used for bedding and backfilling. Dlo not six
<br />4445 N0 PERSHING AVENUW
<br />materials. QQ �.a �m a��
<br />enter
<br />he the top of the tanks before any workers need �iTOm„IICTONg CAa
<br />toter the excavation. Positioning of tanks can be Stable valla are those which normally ren be made vertical
<br />accomplished with one member of the installation crew from bed to grade without use of shoring or sheet p.tling.
<br />working on the top of the tanks. installation Hole must be large enough to allow a minimum of 24" between
<br />Banks at ribs end a minimum of 24" from ends and sides of OCAL■
<br />contractors suet be qualified [o perform this Bathos. - e,r(1f 11�/%/�(/J�� SHELL OIL COMPANY OWN. IBY
<br />tanks to hole walls. Contractor will Safety
<br />responsible for aa•►a�m
<br />compliance with OSHA "Construction, Safety f, 1lealpb Regula-
<br />tions," Subpart P - Excavations, trenching and Wiring, 204=7524-24�d
<br />1926.650 thru 1926.653. - W.1 C.♦
<br />ROBERT H. LEE S ASSOCIATES, INC.
<br />ARONIT9QYlJAI PLANNING KNOINmamlNO }mmmJ-t3
<br />'INIm `mR-
<br />1337NQWm AVNNUR.0911.mQCRAMCNTC,CA 80885 .(0181646-4003
<br />
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