FiberglassAboveground Products

Xerxes Fiberglass Aboveground Products

Since the 1960s, employees at the Xerxes Aboveground Prod-ucts (AGP) Division in Anaheim, California, have designedand manufactured corrosion-resistant, fiberglass productsaimed at protecting the environment. In the early 1960s,Century Fiberglass, a precursor of the Xerxes AbovegroundProducts Division, played a key role when the fiberglass in-dustry addressed corrosion-related issues of abovegroundchemical storage tanks.

Both at its Anaheim location and its other strategicallylocated facilities, Xerxes Corporation has a reputation as anindustry leader, in part because the company constantly ex-amines the needs of the marketplace in order to provide in-novative solutions to customers’ ever-changing needs. Ascommunities, industries and regulating bodies solve their liq-uid storage needs while protecting the environment, Xerxes isthere with products that meet those needs. Today, Xerxesaboveground fiberglass products include storage and processtanks, piping, ductwork and custom-fabricated equipment,as well as a full line of accessories and fittings.

Customers choose Xerxes aboveground products becausethey are engineered and manufactured to be long-lasting, cor-rosion-resistant, durable, cost-effective solutions for a wide

variety of aboveground storage and production applications.Customers also choose Xerxes fiberglass products because, un-like polyethylene products, they easily lend themselves to awide variety of fitting configurations. And, unlike steel above-ground products, they are easy to ship and easy to install be-cause they are lightweight yet structurally strong. A furtheradvantage of choosing a Xerxes tank is that Xerxes offers fieldservice, including field installation of additional tank acces-sories after tank installation.

Xerxes Anaheim is RTP-1 accreditedXerxes’ Anaheim facility has been an American Society ofMechanical Engineers (ASME) RTP-1 accredited manufac-turer since 1997. This ASME Reinforced Thermoset Plasticaccreditation, the most stringent fiberglass-tank specificationfor manufacturers, is held by only a select number of compa-nies in the world. The Xerxes Aboveground Products Divi-sion is one of a handful of U.S. companies that continue tomeet the stringent and evolving RTP-1 standards by success-fully passing the shop qualifications, surveys and annual au-dits necessary for accreditation.

Fiberglass aboveground tanks – a long-term storage solution

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Xerxes Corporation has long been a leader in the design andmanufacture of high-quality, cost-effective fiberglass productsthat help protect the fragile relationship between humans andtheir environment. Xerxes Corporation manufactures bothaboveground and underground storage tanks. Headquarteredin Minneapolis, Minnesota, Xerxes operates several manu-facturing facilities strategically located to provide prompt de-livery and quality service, both economically and efficiently.The Xerxes Aboveground Product Division is located atXerxes’ Anaheim, California, facility.

For decades, Xerxes has been well-known as a major tanksupplier to the petroleum industry, with more than 150,000underground tanks installed. Many of the world’s largest oilcompanies rely on Xerxes to supply environmentally safe un-derground tanks for storage of gasoline at their retail servicestations. Throughout the neighborhoods and communities ofAmerica, Xerxes underground products are in place, simulta-neously storing liquids and protecting the environment.

More recently, Xerxes has become a major supplier of un-derground storage tanks for water and wastewater applica-tions. This product line includes septic, recirculation, dosing,holding, leachate and chemical tanks, as well as tanks de-signed for potable water, fire-protection water, irrigationwater, stormwater and emergency-supply water.

All the while, Xerxes has also been a major supplier offiberglass aboveground tanks to a variety of companies andmunicipalities throughout the western United States. Everytime a Xerxes fiberglass tank – whether aboveground or un-derground – is delivered to a customer, the same performancestandard has been met – a vessel for safe storage and carefulprotection of the environment.

Features of Xerxes Aboveground Tanks

l Can be manufactured with ASME RTP-1 stamp

l Constructed of long-lasting fiberglass

l Manufactured to requirements of ASTM D 3299

and D 4097 standards

l Manufactured to meet customers’ needs with

accessories that meet specific requirements –

including PS 15-69

l Can be manufactured to meet NSF Standard 61

requirements (potable water tanks)

l Designed for all seismic zones

l Available in single-wall and double-wall models

l Available in horizontal and vertical models

l Available in diameters up to 14 feet

l Available in capacities up to 50,000 gallons

l Easy to ship and install

Products designed and manufacturedby a long-time industry leader

Xerxes – for today and tomorrow

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Each Xerxes tank represents decades of innovation and provenexperience developing and fabricating fiberglass tanks. AtXerxes, excellence in service is as highly valued as excellencein product design and manufacturing. Xerxes’ commitmentto quality is the foundation of the strong, long-lasting rela-tionships we have with our customers. Unlike less durablegoods, Xerxes tanks must perform to standards for decades.We believe in going the extra mile for our customers. Ourcommitment to customer satisfaction and quality productsmakes Xerxes an excellent choice in both aboveground andunderground storage – for today and tomorrow.

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Aboveground fiberglass tanksXerxes aboveground fiberglass vessels and piping are widelyused by municipalities and manufacturers because of theirability to handle corrosive chemicals. For instance, wastewatertreatment facilities use aboveground fiberglass storage tanksand piping because they safely contain and transport harshchemicals such as sodium hypochlorite (bleach), alum andferric chloride. In addition, aboveground fiberglass corrosion-resistant stacks are used to ventilate wastewater treatment fa-cilities.

On the other end of the spectrum, food manufacturersfavor fiberglass products because they keep their products freefrom contamination. Applications of aboveground fiberglasstanks, piping and equipment include the storage of such di-verse items as bleach, food, chemicals and brine, as well as thecollection of refinery spills.

Aboveground fiberglass pipingXerxes also manufactures a full line of custom fiberglass pip-ing and pipe fittings. Pipe ends are available with plain-end,bell-guide and flanged connections. Xerxes specializes insmall-diameter to mid-diameter piping applications, up to 60inches in diameter. Xerxes also offers factory spooling togreatly reduce field-assembly costs.

The piping is complemented by a full line of lightweight,easy-to-install, filament-wound and hand-lay-up fittings, in-cluding elbows, tees, crosses, flanges and reducers. Piping 3 to12 inches in diameter is rated at 150 psi. Piping 14 inches indiameter and larger is available in pressure ratings of 50, 100and 150 psi. The dimensions for bolt circles and bolt-hole sizesmeet ANSI B16.1 requirements.

Custom fabricationWhile Xerxes offers a full line of standard tank and pipe sizes,it also is able to fabricate a wide range of engineered fiberglassstructural products to meet specific customer requirements.

Examples of this custom fabrication are contact-moldedtanks, piping, ductwork, free-standing exhaust stacks, air-stripping towers, scrubbers, precision-built transportationcases, wastewater holding tanks, food-processing tanks andbrine makers.

A full range of products for a variety of applications

Typical Aboveground Applications

l chemical storage (sodium hypochlorite, etc.)

l chemical processing and mixing

l manufacturing processes

l ultrapure water storage

l wastewater treatment

l potable water and fire-protection water storage

l emergency water for health care facilities

l food processing and storage(vinegar, mustard, etc.)

l latex-paint storage

l brine

l agricultural product storage (olives, pickles,tomatoes, etc.)

Xerxes Aboveground Products Division uses premium mate-rials to manufacture its tanks, piping and accessories. Xerxesfiberglass products are manufactured of high-quality resinsand glass, resulting in durable laminated products. Other ben-efits of fiberglass are that it is inherently corrosion-resistantand essentially maintenance-free.

Also, compared to other options in aboveground tanks –such as steel, stainless steel or concrete – fiberglass offers cus-tomers a cost-effective and easy-to-ship alternative. For ex-ample, an aboveground fiberglass tank weighs about one-thirdof what a steel tank of equal capacity weighs, yet, as a com-posite, the material of construction is three to six timesstronger than steel on a pound-for-pound basis. As a pro-tection against ultraviolet-ray degradation, the exterior of allXerxes aboveground tanks have either a resin-based, clear-waxcoating or gel coat that can be tinted according to customerpreference.

Xerxes aboveground tanks are designed to meet load condi-tions specified by customers, which can include buildingcodes such as the Uniform Building Code, the InternationalBuilding Code and local codes. The analysis performed forthese prescribed loads is based on finite-element models, asgenerated for specific tank and vessel geometries and operat-ing conditions. The computer-generated, finite-element mod-els provide a realistic and accurate analysis of the vessels andtanks, thus allowing for optimum design of the various tankelements – such as wall thickness, material selection and an-choring systems.

Through the use of different glass fabrics and glass rov-ing, each tank or vessel laminates are optimized to satisfy notonly the building codes, but also various fiberglass specifica-tions, such as those prescribed by ASME RTP-1 and ASTM(American Society for Testing and Materials).

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Aboveground products offering the benefits of fiberglass

Technology to fit the changing needs of the marketplace

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The majority of Xerxes aboveground tanks are filament-wound. A typical Xerxes filament-wound tank has at leastfour layers. First, the inner surface of the tank is 20 mils thick,with a 90 percent, resin-rich surface reinforced with either aglass or synthetic veil. The second layer is a resin-rich, ran-dom-oriented, chopped-strand glass layer no less than 80 milsthick. This layer has an approximately 65 percent resin con-tent and 35 percent glass content. Together, these first twolayers create a 100-mil corrosion barrier. The resin for thisbarrier is determined by the specific liquid being stored andthat liquid’s required temperature limits.

The third layer involves the process of filament winding.Resin-impregnated, continuous strands of fiberglass are ap-plied to a rotating mandrel. The filaments are applied at ap-proximately 70 degrees to the tank’s longitudinal axis. Thisfilament-wound layer is approximately 70 percent glass and30 percent resin. The final layer of each tank is either a 10-mil, resin-based, pigmented or clear gel coat that protects thetank from ultraviolet-ray degradation.

In some applications, additional or adjusted layers are re-quired to meet specific site or usage requirements. For instance,continuous filaments of resin-impregnated glass can be appliedat a 90-degree angle to the tank’s longitudinal axis (rather thanthe earlier described 70-degree angle). This provides hoopstrength and allows tapering of the tank-wall thickness in dis-

creet steps.When tanks need to be designed andmanufacturedto protect against wind and earthquake conditions, unidirec-tional layers, comprised of resin-impregnated glass fibers, areapplied along the longitudinal axis of the tank to provide ad-ditional reinforcements against buckling due to seismic or otherloads. A tank can also be insulated with foam and covered witha fiberglass jacket.

Filament-wound layers for structural strength

Xerxes standard nonseismic tanksAll Xerxes aboveground standard filament-wound tanks aredesigned to meet ASTM D 3299, Type I, Grade 2 require-ments for hydrostatic loads with a specific gravity of 1.2(maximum hoop strain of .0010 in./in.). Tanks are designedfor 100 mph windload when anchored. Tank tops are de-signed for a 250-pound manload and/or for snow at25lbs./sq.ft. In terms of pressure and vacuum, tanks are de-signed for service at atmospheric pressure; however, a slightinternal pressure (to 0.5 psi) is allowed as long as the tank ispositively vented and properly anchored.

Tanks designed for seismic conditionsXerxes aboveground tanks can also be designed for seismiczones 1, 2A, 2B, 3 and 4, as well as various specific gravitiesand pressures up to 15 psi. All seismic tanks are designed ac-cording to the latest applicable building codes and RTP-1,ASTM D 3299 and/or according to other customer require-ments or specifications.

Hoop and axial stresses and strains due to hydrostaticand seismic loads are computed by means of a finite-elementcomputer program. The filament winding primarily providesthe required hoop strength. Since seismic loads also producelarge axial stresses, each Xerxes seismic filament-wound tankincludes a special lug design appropriate for the size of thetank. Xerxes seismic tanks exceed the applicable design re-quirements of American Petroleum Institute API 650 (Tanksfor Oil Storage).

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Manufacturing standards for AGP tanks

Xerxes aboveground tanks can be designed and manu-factured to meet the following standards, as well asother customer requirements and specifications:

l American Society of Mechanical Engineers

l ASME RTP-1

l American Society for Testing and Materials

l ASTMD3299

l ASTM D 4097

l National Bureau of Standards

l NBS PS 15-69

l National Sanitation Foundation

lNSF Standard 61

Typical models of Xerxes fiberglass aboveground tanks

Vertical, dish-bottom,dome-top, fiberglass-skirt tank

Horizontal, dome-end,fiberglass-saddle tank

Vertical, flat-bottom, dome-top tank

Vertical, cone-bottom, dome-top,fiberglass-leg tank

(Cone-bottom tanks can be orderedwith varying degrees of cone angle.)

Shown on these pages are Xerxes’ most commonly orderedcylindrical aboveground tank models. A Xerxes abovegroundtank can be manufactured to exact customer specifications,including fittings and accessories. (See pages 9-11 for infor-mation on fittings and accessories.)

Xerxes aboveground tanks may be ordered in single-wallor double-wall models, for a full range of seismic conditions,insulated or not, in diameters up to 14 feet, and in capacitiesup to 50,000 gallons. When an aboveground tank is orderedwith saddles, legs or a skirt, those components are manufac-tured of fiberglass.

Xerxes aboveground tanks can be designed and manu-factured with the following options:

l vertical or horizontal models

l open, flat or dome tops

l flat-bottom, dish-bottom, cone-bottom or sloped-bottom

l leg-supported, skirt-supported or saddle-supported

l single-wall or double-wall models.

7

figure 1

figure 4figure 2

figure 3

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BelowThis horizontal aboveground tank with fiber-glass saddles was specified with a ladderand work platform. These accessories areshop-fit, then disassembled for shipping andfield installation.

On the leftShown here are flanged spools thatinclude pipe, elbows, tees andcrosses used for a fume scrubbingapplication. The piping was factory-assembled to reduce field labor.

BelowXerxes manufactures a wide varietyof aboveground piping and duct-work. Shown here are examples ofcustom piping with a clear coating.

Typical accessories for Xerxes aboveground fiberglass tanksXerxes designs and manufactures a complete line of acces-sories and fittings to equip tanks for a variety of applicationsand to meet the building codes in any geographical area.Mounting brackets and other structural accommodations canbe factory-fitted to facilitate field installation of special ac-cessories, such as a variety of float-gauge systems, internal pip-ing or electronic sensors.

All tanks must have a vent, and manways are requiredfor horizontal and closed-top vertical tanks to allow internalbonding of dome ends and tops. Unless otherwise specified,a Xerxes aboveground tank carries a label showing date ofmanufacture, capacity, resin system, inner-liner data, tem-perature limits and serial number.

Customer-specified items, such as logos, may generallybe added to tank exteriors. See page 11 for placement of fre-quently ordered accessories.

9

ManwaysStandard side and topmanways are availablein both 20-inch and24-inch diameters.Larger-diameter man-ways are also available. Manways are designed to meet all re-quirements of ASTM D 3299, ASTM D 4097 or ASMERTP-1. Cadmium-plated bolts, nuts and washers, and flat-faced neoprene gaskets are standard on manways. Stainless-steel hardware is available for an additional charge. Manwaysare required for horizontal and closed-top vertical tanks toallow internal bonding of dome ends and tops.

Hinged manwaysHinged manwaysoffer quick and easyaccess to tank inte-riors through thetank top. Thehinged manway does not offer an airtight or watertight seal.However, when seated and locked down, this manway pre-vents rainwater and contaminants from entering the tank.

Mounting bracketsThe mountingbrackets providethe necessary re-straint for both in-ternal and externalaccessories, such aspiping and instru-mentation. Unless otherwise specified, they are fiberglass. Valves,controllers or other heavy items connected to tank nozzles shouldbe independently supported.

Vents (gooseneck and mushroom)All Xerxes aboveground tanks mustbe vented to prevent serious damagefrom the excess pressure or excessvacuum that typically occurs duringloading or offloading of liquids.Xerxes offers two standard ventstyles – the common gooseneck ventand the mushroom vent. Both venttypes are equipped with birdscreens.Minimum vent size should exceedthe size of the largest inlet or outletnozzle.

Flanged nozzlesXerxes supplies bothhand-lay-up and fila-ment-wound flanges.Flanged nozzles areavailable in 1-inchthrough 42-inch in-ternal diameters.When required, noz-zles can be strengthened by either plate or conical gussets. AllXerxes flanges meet ASTM D 3299, ASTM D 4097, ASMERTP-1 or NBS PS 15-69 standards, as specified. Flange dimen-sions (except thickness) and bolting correspond to ANSI B16.1.Mating flanges must be flat-faced using a full-face gasket. Xerxescan also manufacture custom flanges.

LaddersFor access to tank tops, ladders are available in fiberglass, alu-minum or carbon steel. All ladders are factory-fitted to the tankbut disassembled for shipment and subsequent field installationby others. Ladders that are 20-feet high and higher must be or-dered with safety cages. Safety cages can also be ordered forshorter ladders. (See page 11 for ladder illustration.)

Lifting lugsUnless otherwise specified, all tanks areequipped with two opposing galvanized-steel lifting lugs. Fiberglass lifting lugs areavailable for certain sizes of tanks. Sometie-down lugs can be used as lifting lugswhen unloading the tank.

Tie-down lugsXerxes offers six different designs of gal-vanized steel tie-down lugs. These lugsare incorporated into the design for eachvessel to fit the vessel’s specific require-ments, whether it be for seismic, non-seismic and/or wind-load conditions.These lugs are usually filament-woundonto the outside of the completed tankwall. Lugs are also available in fiberglassand special metals.

DrainsXerxes suppliesseveral differ-ent styles ofdrain fittings.The two mostpopular stylesare the siphondrain (which isinstalled in thesidewall of thevessel and hasinternal pipingthat terminatesclose to the in-side bottom of the tank) and the full drain (which is installedwith the centerline level with the tank bottom). Full drain noz-zles are equipped with three plate gussets and require a notch inthe foundation. Other drain styles include the side bottom drain,side shell drain, bottom drain and bottom elbow drain.

BafflesFiberglass baffle as-semblies can be in-stalled inside thetank to promotemixing. Baffles areavailable in bothcustom designs anda standard stand-off baffle configura-tion, with standardwidths of 1/12 thetank diameter.

Work platforms and catwalksWork platformsand catwalksthat connect twoor more tanksprovide access totank tops (andmeet currentOSHA specifica-tions). They areavailable in fiber-glass, aluminumor carbon steel.These accessoriesare shop-fit to thetank but disassembled for shipment and subsequent field instal-lation by others.

HandrailsHandrails areavailable in fiber-glass, aluminumor carbon steel.They are shop-fitto the tank butdisassembled forshipment andfield installationby others.

Heating and insulation

Self-regulating heater cable, designed for each application, is at-tached to the tank with aluminum tape. The heating cable dis-tributes the heat to hold liquids to desired temperatureminimums. Along with the heating unit, insulation conservesenergy and provides temperature stability. Heating tape is ap-plied to the tank’s external wall (typically on the lower quarter).Agitators or some type of liquid recirculation may be required toachieve temperature requirements, depending on the applica-tion and environment.

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11

Handrail

Side manway

Gooseneck vent

Mushroom vent

Lifting lug

Flanged nozzle(conically gusseted)

Flanged nozzle(no gussets)

Largetie-down lugFlanged nozzle

(with plate gussets)

Hinged-top manway

Work platform

Caged ladder

Smalltie-down lug

Typical vertical flat-top tankshowing accessories and fittings

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6-foot-diameter

8-foot-diameter

10-foot-diameterAboveground Tank Data (nominal)

6

7

8

9

10

11

12

13

14

15

16

17

18

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

1,260 1,460 1,660

1,470 1,670 1,870

1,680 1,880 2,080

1,890 2,090 2,290

2,100 2,300 2,500

2,310 2,510 2,710

2,520 2,720 2,920

2,730 2,930 3,130

2,940 3,140 3,340

3,150 3,350 3,550

3,360 3,560 3,760

3,570 3,770 3,970

3,780 3,980 4,180

2,960 3,440 3,920

3,330 3,810 4,290

3,700 4,180 4,660

4,070 4,550 5,030

4,440 4,920 5,400

4,810 5,290 5,770

5,180 5,660 6,140

5,550 6,030 6,510

5,920 6,400 6,880

6,290 6,770 7,250

6,660 7,140 7,620

7,030 7,510 7,990

7,400 7,880 8,360

7,770 8,250 8,730

8,140 8,620 9,100

8,510 8,990 9,470

8,880 9,360 9,840

5,800 6,620 7,400

6,380 7,200 7,980

6,960 7,780 8,560

7,540 8,360 9,140

8,120 8,940 9,720

8,700 9,520 10,300

9,280 10,100 10,880

9,860 10,680 11,460

10,440 11,260 12,040

11,020 11,840 12,620

11,600 12,420 13,200

12,180 13,000 13,780

12,760 13,580 14,360

13,340 14,160 14,940

13,920 14,740 15,520

14,500 15,320 16,100

480

520

560

600

640

680

720

760

800

840

880

920

960

890

940

990

1,040

1,080

1,130

1,180

1,230

1,280

1,360

1,420

1,480

1,540

1,600

1,660

1,760

1,830

1,390

1,460

1,530

1,600

1,670

1,790

1,870

1,960

2,050

2,180

2,280

2,380

2,480

2,630

2,750

2,860

Vertical Flat-BottomTank Capacity (gal.)

Vertical Dish-BottomTank Capacity (gal.)

HorizontalTank Capacity (gal.)

Flat-Btm., Dome-topWeight (lbs.) **

Tank Shell Height *(feet)

Chart notes:These charts provide details for commonly ordered tanks. However, there are many other tank sizes, models and configurations – forexample, 14-foot made-to-order (MTO) tanks. For more information, contact the Xerxes Aboveground Products Division. (See backcover for contact information.) See additional notes below for information related to chart details.

* The tank shell height given in these charts is for the shell only. To determine height of tank with dome, add:l 1' 4" for a 6-foot-diameter tankl 1' 8" for an 8-foot-diameter tankl 2' 1" for a 10-foot-diameter tankl 2' 0" for a 12-foot-diameter tankl 2' 5" for a 13-foot-diameter tank.

** The weight given in the charts is for a dry, flat-bottom, dome-top, nonseismic, vertical tank without fittings oraccessories. For information on weights for other types of tanks and for tanks with accessories and fittings, contact theXerxes Aboveground Products Division. (See back cover for contact information.)

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12-foot-diameter

13-foot-diameter

Aboveground Tank Data (nominal)

10111213141516171819202122232425303136

101112131415161718192025303540

8,200 8,970 9,7409,020 9,790 10,5609,840 10,610 11,38010,660 11,430 12,20011,480 12,250 13,02012,300 13,070 13,84013,120 13,890 14,66013,940 14,710 15,48014,760 15,530 16,30015,580 16,350 17,12016,400 17,170 17,94017,220 17,990 18,76018,040 18,810 19,58018,860 19,630 20,40019,680 20,450 21,22020,500 21,270 22,04024,600 25,370 26,14025,420 26,190 26,96029,520 30,290 31,060

10,300 12,020 13,74011,330 13,050 14,77012,360 14,080 15,80013,390 15,110 16,83014,420 16,140 17,86015,450 17,170 18,89016,480 18,200 19,92017,510 19,230 20,95018,540 20,260 21,98019,570 21,290 23,01020,600 22,320 24,04025,750 26,540 28,26030,900 31,490 33,21036,050 36,440 38,16041,200 41,390 43,110

1,7401,8201,9102,0102,1102,2202,3202,4802,6202,7202,8403,0203,1603,3003,4404,0604,8905,0606,000

2,2902,3752,4602,5802,6852,7902,8903,0253,1453,2603,3804,0804,7405,4456,170

Vertical Flat-BottomTank Capacity (gal.)

Vertical Dish-BottomTank Capacity (gal.)

HorizontalTank Capacity (gal.)

Flat-Btm., Dome-topWeight (lbs.) **

Tank Shell Height *(feet)

Limited WarrantyAboveground Products

Xerxes Corporation (“Xerxes”) warrants to the original owner (“Owner”) that all aboveground tanks, accessories,pipes, ducts or other goods (collectively “Goods”), if installed, used and maintained in the United States in accor-dance with Xerxes’ published specifications, installation instructions and operating guidelines, Owner’s specifications,and all applicable laws and regulations, will not fail due to material defects in materials and workmanship for a periodof one (1) year from date of original delivery by Xerxes.

Owner’s sole and exclusive remedy for breach of warranty relative to any Goods proved upon Seller’s inspection tohave been defective when shipped is limited at Seller’s option to: (a) repair of the defective Goods, b) delivery of re-placement Goods to the point of original delivery, or c) refund of the original purchase price. A claimant must giveSeller the opportunity to observe and inspect the Goods and system prior to removal, or the claim will be foreverbarred. All claims must be made in writing promptly and in any event within one (1) year after failure of the Goods, orbe forever barred. No allowance will be granted for any repairs or alterations made by Owner without Seller’s writtenconsent.

The foregoing warranty does not extend to Goods damaged due to acts of God, fire, flood, earthquake, war, ter-rorism, or failure of Goods caused, in whole or in part, by misuse, improper installation, storage, servicing, mainte-nance, or operation in excess of their rated capacity, or contrary to their recommended use, whether intentional orotherwise, or any other cause or damage of any kind not the fault of Xerxes. Xerxes only warrants repairs or alter-ations performed by Xerxes or its authorized contractors. Xerxes does not warrant any product, components or partsmanufactured by others.

This warranty does not extend to Goods damaged by chemical reaction or other wear caused by the presence ofmaterials or conditions not included in the Owner’s specifications provided to and accepted in writing by Xerxes, or toGoods which have been repaired or altered in any manner without Xerxes’ prior written consent.

THE FOREGOING WARRANTY CONSTITUTES XERXES’ EXCLUSIVE OBLIGATION AND XERXES MAKES NO OTHERWARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, WITH RESPECT TO THE GOODS, REPAIR, REPLACEMENT,MATERIALS OR ANY SERVICE, ADVICE OR CONSULTATION, IF ANY, FURNISHED TO OWNER BY XERXES OR ITS REPRE-SENTATIVES, WHETHER AS TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE. THESELLER (XERXES) UNDERTAKES NO RESPONSIBILITY FOR THE QUALITY OF THE GOODS, EXCEPT AS OTHERWISE PRO-VIDED IN THIS CONTRACT. THE SELLER (XERXES) ASSUMES NO RESPONSIBILITY THAT THE GOODS WILL BE FIT FORANY PARTICULAR PURPOSE FOR WHICH YOU (OWNER) MAY BE BUYING THESE GOODS, EXCEPT AS OTHERWISEPROVIDED IN THE CONTRACT. THE REMEDIES SET FORTH IN THE ABOVE WARRANTY ARE THE ONLY REMEDIESAVAILABLE TO ANY PERSON OR ENTITY FOR BREACH OF WARRANTY OR FOR BREACH OF ANY OTHER COVENANT,DUTY, OR OBLIGATION ON THE PART OF XERXES. XERXES SHALL HAVE NO LIABILITY OR OBLIGATION TO ANY PER-SON OR ENTITY FOR BREACH OF ANY OTHER COVENANT, DUTY, OR OBLIGATION UNDER THIS WARRANTY EXCEPTAS EXPRESSLY SET FORTH HEREIN. IT IS EXPRESSLY AGREED THAT THIS WARRANTY DOES NOT FAIL OF ITS ESSENTIALPURPOSE. XERXES SHALL HAVE NO LIABILITY FOR COSTS OF INSTALLATION OR REMOVAL OF GOODS, ENVIRONMEN-TAL CONTAMINATION, FIRES, EXPLOSIONS, OR ANY OTHER CONSEQUENCES ALLEGEDLY ATTRIBUTABLE TO ABREACH OF WARRANTY, OR INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR OTHER DAMAGES OF ANY DESCRIPTION,WHETHER ANY SUCH CLAIM OR DAMAGES BE BASED UPON WARRANTY, CONTRACT, NEGLIGENCE, STRICT LIABIL-ITY OR OTHER TORT, OR OTHERWISE. IN NO EVENT SHALL XERXES TOTAL LIABILITY HEREUNDER EXCEED THE ORIGI-NAL PURCHASE PRICE OF THE GOODS WHICH GAVE RISE TO SUCH LIABILITY.

Consumer Notice: This warranty gives you (Owner) specific legal rights. You (Owner) may also have other rights whichvary from state to state.

Effective: 6/1/05

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Xerxes fiberglass products are designed and fabricated in the Xerxes manufacturing facility located in Anaheim,California. One of Xerxes Corporation’s four manufacturing operations, this 84,000-square-foot plant occupies asix-acre lot and is among the leading production facilities of its type in the world.

© 2007 Xerxes Corporation xagp04/07pp

Xerxes Corporation Aboveground Products1210 North Tustin AvenueAnaheim, CA 92807714-630-0012 phone714-632-7133 faxagp@xerxescorp.comwww.xerxescorp.com

Xerxes Corporation Main Office7901 Xerxes Avenue SouthMinneapolis, MN 55431-1288952-887-1890 phone952-887-1882 faxwww.xerxescorp.com