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Ðrevised.€€Userððs€technical€comments€are€appreciated.€€Also,€otherÐ V¦" Ðrelated€or€similar€specifications€that€are€written€ð ðfrom€scratchðð€thatÐ ùI# Ðcould€benefit€others,€or€other€questions€can€be€sent€to€NARSC€A/EÐ œì$ ÐGroup,€RS„110€or€call€(303)€987„6851.Ð?%€(#€(# ÐÌÐ  …Õ' Ðà0   àF.à0€ (# (#àDESIGN€NOTES:а€(#€(# ÐÌà0   àà0€ (# (#àUse€of€a€steel€water€storage€tank€is€a€decision€that€should€be€madeÐ öF Ðonly€after€careful€consideration€of€alternatives€(concrete,Ð ™é Ðfiberglass,€plastic,€glass„fused€steel,€etc.).€€Ô_ÔAWWAÔ_Ô€D€100€is€a€veryÐ <Œ Ðcomprehensive€standard€which€addresses€all€aspects€of€welded€steelÐ ß/ Ðwater€storage€tanks.€€Designers€should€be€familiar€with€this€standard,Ð ‚Ò Ðand€use€additional€references€to€specific€provisions€as€appropriate.Ð% u€(#€(# ÐÌà0   àà0€ (# (#àConsider€freezing€potential,€and€damages€that€could€result€from€iceÐ k »  Ðlayer€movement€in€the€tank.€€Corrosion€protection€is€part€of€theÐ  ^  Ðdesign€and€installation€of€any€steel€water€storage€tank.€€ThisÐ ±   Ðincludes€an€appropriate€paint€system,€as€well€as€cathodic€protection.€Ð T ¤  ÐIt€is€suggested€that€painting€be€addressed€in€a€separate€section€inÐ ÷ G  Ðdivision€9,€separately€from€other€painting€requirements€of€theÐ š ê Ðproject.€€The€interior€paint€for€any€potable€eater€storage€tank€shouldÐ =  Ðbe€listed€by€the€National€Sanitation€foundation€as€approved€for€use€inÐ à0  Ðcontact€with€potable€water.ÐƒÓ €(#€(# ÐÌà0   àà0€ (# (#àCathodic€protection€should€be€designed€in€consideration€of€theÐ É  Ðcharacteristics€of€the€water€to€be€stored,€as€well€as€the€environmentÐ l¼  Ðin€which€the€tank€will€reside.€€Either€sacrificial€Ô_ÔaanodeÔ_Ô€(usingÐ _  Ðmagnesium€anode)€or€impressed€current€systems€can€be€used.€Ð ² ÐSacrificial€anode€systems€are€generally€simpler€to€design,€and€oftenÐ U¥ Ðconsist€of€anodes,€electrically€bonded€to€the€tank,€suspended€into€theÐ øH Ðwater.€€Most€cylindrical€tanks€should€have€at€least€three€such€anodesÐ ›ë Ðevenly€spaced€at€a€distance€of€one„third€the€tank€radius€from€theÐ >Ž Ðsides,€extending€about€halfway€into€the€depth€of€the€contained€water.Ðá1€(#€(# ÐÌà0   àà0€ (# (#à1.à0` €(#€(#àò òDRAWING€DATA€REQUIRED:€ó óDrawings€should€indicate€the€desiredÐ 'w Ðtank€configuration,€including€only€those€specific€details€andÐ Ê Ðdimensions€required€beyond€the€conformance€with€standards€in€theÐ m½ Ðspecification.€€Examples€include€minimum€and€maximum€water€surfaceÐ `  Ðelevations,€pipe€penetration€locations,€connecting€pipe€and€valveÐ ³! Ðconfiguration,€clearances€from€existing€structures€or€other€siteÐ V¦" Ðfeatures,€and€types€of€foundation.€€A€site€plan€which€establishesÐ ùI# Ðhorizontal€location€and€shows€all€connected€lines,€including€drainÐ œì$ Ðand€overflow€piping€is€also€needed.Ð?%` (#` (# ÐÌÌò òREVISIONS€OF€THIS€SECTION:Ð (x( Ðó óÔ_ÔCSIÔ_Ô€format,€editorial€changes€9/99Ð Ë) ÐMetric:€3/00Ð n¾* ÐTechnical€Update:€3/00Ð  a+ ÐÌÌÌÌÌÐ  ã#31 ÐÓ$ ° ’àÿÿX à$ÓÔ_ÔÖ€ÿÿÖÔ_ÔØØà@bb-ìàSECTION€13209ˆÐ ° ÐÌà@66*ìàWATER€STORAGE€TANKSˆÐ öF ÐÌòòPART€1:€€GENERALóóÐ <Œ ÐÌ1.1à0 € àSUMMARYЂҀ(#€(# ÐÌà0   àA.à0€ (# (#àSection€Includes:€€[Furnishing]€[and]€[Installing]€[Installing€with]Ð È  Ð[Government-furnished€property]€[Contractor-furnished€andÐ k »  ÐGovernment-furnished€property]€[elevated]€steel€water€storage€tanks,Ð  ^  Ðand€other€appurtenances€necessary€to€complete€the€storage€tanks.б  €(#€(# ÐÌà0   àB.à0€ (# (#àRelated€Sections:Ð÷ G €(#€(# Ð****************************************************************************Ð š ê ÐLIST€ITEMS€OF€WORK€THAT€MIGHT€LOGICALLY€BE€FURNISHED€AND€INSTALLED€UNDER€THISÐ =  ÐSECTION,€BUT€INSTEAD€ARE€SPECIFIED€IN€ANOTHER€SECTION.€€THIS€ARTICLE€IS€RARELYÐ à0  ÐREQUIRED.Ð ƒÓ  Ð*****************************************************************************Ð &v  ÐÌ1.2à0 € àSYSTEM€DESCRIPTIONÐl¼ €(#€(# Ð****************************************************************************Ð _  ÐMODIFY€BELOW€PARAGRAPH€WHEN€REQUIRED€BY€THE€CORROSIVE€NATURE€OF€STORED€WATER,Ð ² ÐLACK€OF€PROPER€MAINTENANCE€FACILITIES,€OR€BY€CLIMATIC€CONDITIONS.€Ð U¥ Ð*****************************************************************************Ð øH ÐÌà   àA.à0 € àDesign€Requirements:€€The€design€fabrication,€and€erection€of€theÐ >Ž Ð[elevated]€tank€shall€be€according€to€the€applicable€requirements€ofÐ á1 ÐÔ_ÔAWWAÔ_Ô€D€100.€€Earthquake€design€shall€be€for€seismic€zone€[___].€€TheÐ „Ô Ðelevated€tank€shall€be€designed€for€a€basic€wind€speed€of€[___]€kmÐ 'w Ð([___]miles)€per€hour€in€accordance€with€ASCE€7€or€designed€inÐ Ê Ðaccordance€with€Ô_ÔAWWAÔ_Ô€D€100€wind€load€design,€whichever€provides€theÐ m½ Ðgreater€pressure.€€[The€elevated€tank€shall€be€designed€for€a€snowÐ `  Ðload€of€[òò€€€€óó]psf€([òò€€€€óó]€Pa).г!€(#€(# ÐÌÔ& / Ô1.3à0 € àÔ_ÔSUBMITTALSÔ_ÔÐùI#€(#€(# ÐÌà0   àA.à0€ (# (#àGeneral:€€Ô_ÔSubmittalsÔ_Ô€shall€be€according€to€[Section€01009€-€GeneralÐ ?% ÐInformation€and€Requirements.]€€[Section€01331€-€Ô_ÔSubmittalÔ_ÔÐ â2& ÐProcedures.]€and€€[Section€Ô'/ù‘!Ô01331€-€Certificates.]Ð…Õ'€(#€(# ÐÌà0   àB.à0€ (# (#àManufacturer's€Literature:€€Submit€three€copies€of€manufacturer'sÐ Ë) Ðdescriptive€data€for€the€tank,€including€accessories,€components,€andÐ n¾* Ðinterior€and€exterior€coating€systems€to€be€used.Ð a+€(#€(# ÐÌà0   àC.à0€ (# (#àShop€Drawings:€€Submit€three€copies€of€shop€drawings€for€foundationsÐ W!§- Ðand€shop€drawings€of€catalog€cuts€of€the€steel€tank€to€be€used€on€thisÐ ú!J. Ðproject.€€Shop€drawings€shall€show€types,€sizes,€and€locations€of€allÐ "í/ Ðpanels,€members€and€accessories,€metal€gauges,€welded€joints,€andÐ @#0 Ðother€construction€details.€€Standard€welding€symbols€as€recommendedÐ ã#31 Ðby€the€Ô_ÔAWSÔ_Ô€shall€be€used.€€Provide€metallurgical€information€on€theÐ †$Ö2 Ðsteel€used€in€the€tank€system.Ð)%y 3€(#€(# ÐÌà0   àD.à0€ (# (#àCertificates€of€Conformance:€€Submit€three€copies€of€writtenÐ o&¿!5 Ðcertification€from€the€supplier€of€the€following€Contractor-furnishedÐ 'b"6 Ðitems€to€be€used€on€this€project€that€they€conform€to€the€requirementsÐ µ'#7 Ðof€this€specification€section:ÐX(¨#8€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àTankÐû(K$9` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àPiping€and€FittingsО)î$:` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àValves;€Gate,€Check,€[and€Altitude]ÐA*‘%;` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àPressure€GaugeÐä*4&<` (#` (# Ðà0   àà0€ (# (#à5.à0` €(#€(#àInterior€Coating€Systemа` (#` (# Ðà0   àà0€ (# (#à6.à0` €(#€(#àExterior€Coating€SystemÐS£` (#` (# Ðà0   àà0€ (# (#à7.à0` €(#€(#àWork€was€inspected€in€accordance€with€Ô_ÔAWWAÔ_Ô€D€100,€Section€11.€Ð öF ÐThis€shall€meet€the€requirements€of€Section€11.2.1€and€also€coverÐ ™é Ðthe€hydrostatic€test.Ð<Œ` (#` (# ÐÌà0   àF.à0€ (# (#àDesign€Analyses€and€Calculations:€€Submit€three€copies€of€theÐ ‚Ò Ðstructural€design€loading€conditions€used€for€the€design€of€entireÐ % u Ðtank€including€the€foundation.ÐÈ €(#€(# ÐÌ1.3à0 € àQUALITY€ASSURANCEÐ ^ €(#€(# ÐÌà0   àA.à0€ (# (#àFailure€Criteria:€€Not€limited€to€the€following:ÐT ¤ €(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àEvidence€of€leakageÐ÷ G ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àMalfunctioning€valvesК ê` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àBlockage€of€pipingÐ= ` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àContamination€of€water€rendering€it€not€potableÐà0 ` (#` (# Ðà0   àà0€ (# (#à5.à0` €(#€(#àMisalignment€or€settlement€of€tank€structureÐƒÓ ` (#` (# ÐÌ1.4à0 € àDELIVERY,€STORAGE,€AND€HANDLINGÐÉ €(#€(# ÐÌà0   àA.à0€ (# (#àStorage:€€Items€which€are€subject€to€deterioration€by€exposure€to€theÐ _  Ðelements€must€be€stored€off€the€ground,€in€a€well-drained€location,Ð ² Ðprotected€from€the€weather,€and€accessible€for€inspection€andÐ U¥ Ðhandling.ÐøH€(#€(# ÐÌ1.5à0 € àMAINTENANCEÐ>Ž€(#€(# ÐÌà0   àA.à0€ (# (#àTouch-Up€Paint:€€Furnish€1€gallon€(3.8€liters)€each€of€inside€andÐ „Ô Ðoutside€paint€for€field€touch-up€for€each€tank€furnished.Ð'w€(#€(# ÐÌÔ  ÔòòÔ& u ÔPART€2:€€PRODUCTSóóÐ m½ ÐÌ2.1à0 € àMATERIALSг!€(#€(# ÐÌà0   àA.à0€ (# (#àTank:€€The€steel€water€storage€tank€shall€be€fabricated€from€materialsÐ ùI# Ðas€shown€on€the€drawings€and€according€to€Ô_ÔAWWAÔ_Ô€D€100.Мì$€(#€(# ÐÔ'um×2ÔÌà0   àB.à0€ (# (#àAccessories:€€Attached€valve€pit,€access€parts€and€other€accessoriesÐ â2& Ðshall€be€constructed€as€shown€on€the€drawings.Ð…Õ'€(#€(# ÐÌà0   àC.à0€ (# (#àPipes:€€ASTM€A€153;€appurtenant€pipes€4€inches€(100€mm)€in€diameter€orÐ Ë) Ðlarger€shall€be€welded€steel;€pipes€smaller€than€4€inches€(100€mm)€inÐ n¾* Ðdiameter€shall€be€galvanized€steel.Ð a+€(#€(# ÐÌà0   àD.à0€ (# (#àFittings:€€ASTM€A€153€or€ASTM€B€633,€for€threaded€pipe.ÐW!§-€(#€(# ÐÌà0   àE.à0€ (# (#àCheck€Valves:€€Ô_ÔAWWAÔ_Ô€C€508,€horizontal€swing€check€valve,€flanged€ends,Ð "í/ Ðand€composition€to€metal€seat.Ð@#0€(#€(# ÐÌà0   àF.à0€ (# (#àSmall€Valves:€€ASTM€B€62€for€valves,€2€inches€(50€mm)€and€smaller.І$Ö2€(#€(# ÐÌà0   àG.à0€ (# (#àConcrete€and€Reinforcing€Steel:€€For€foundations,€valve€vaults,€pipeÐ Ì%!4 Ðsupports€and€blocking€shall€conform€to€the€requirements€of€[SectionÐ o&¿!5 Ð03306€„€Minor€Concrete.]€€[Section€03310€-€Structural€Concrete.]Ð'b"6€(#€(# ÐÌ2.2à0 € àFABRICATIONÐX(¨#8€(#€(# ÐÌà0   àA.à0€ (# (#àVolume€and€Size€of€Tank:€€[Elevated€steel€tank]€[Skid„mountedÐ ž)î$: Ðhorizontal€tank]€[Steel€standpipe]€[Steel€ground€storage€reservoir]Ð A*‘%; Ðshall€have€a€minimum€active€volume€of€[òò€€€€óó]€gallons€([òò€€€€óó]€cubicÐ ä*4&< Ðmeters).€€High€water€level€shall€be€at€elevation€[òò€€€€óó,]€with€top€ofÐ ° Ðfoundations€at€elevation€[òò€€€€óó].€€Range€between€high€and€low€waterÐ S£ Ðlevel€shall€be€approximately€[òò€€€€óó]€feet€([òò€€€€óó]€m).€[Elevations€shallÐ öF Ðbe€as€shown].Йé€(#€(# ÐÌà0   àB.à0€ (# (#àElevated€Steel€Tank:€€Ô_ÔAWWAÔ_Ô€D€100€for€fabrication.€€Tank€shall€have€anÐ ß/ Ðellipsoidal€or€spheroidal€top€and€bottom.€€Construct€tank€supportÐ ‚Ò Ðtower€of€tubular€sections.€€Thoroughly€brace€tower€with€horizontalÐ % u Ðstruts€and€diagonal€tie.€€Tower€columns€may€be€vertical€or€inclined€asÐ È  Ðthe€design€may€require.€€Main€column€splices€shall€be€located€at€theÐ k »  Ðintersection€of€the€centerline€of€the€struts.€€Weld€splice€plates€toÐ  ^  Ðhold€members€in€line€and€to€transmit€tension€or€shearing€stresses€toÐ ±   Ðwhich€the€members€may€be€subjected.€€Make€connections€between€tank€andÐ T ¤  Ðcolumns€to€distribute€the€load€over€the€column€sections€and€the€shellÐ ÷ G  Ðof€the€tank.€€[Provide€a€balcony€at€least€2€feet€(600€mm)€wide€and€aÐ š ê Ðstructural-steel€Ô_ÔhandrailingÔ_Ô€at€least€42€inches€(1050€mm)€high€aroundÐ =  Ðthe€balcony.€€Make€balcony€floor€plates€at€least€1/4-inch€(6€mm€)Ð à0  Ðthick€and€punch€or€drill€for€drainage].€€ÐƒÓ €(#€(# ÐÌà0   àC.à0€ (# (#à[Steel€Standpipe:]€€[Steel€Ground€Storage€Reservoir:]€€[Skid„MountedÐ É  ÐHorizontal€Tank:]€€Shall€have€a€standard€shell€height€and€diameterÐ l¼  Ðthat€meet€the€requirements€for€selected€capacity€and€high€waterÐ _  Ðelevation€according€to€Ô_ÔAWWAÔ_Ô€D€100.в€(#€(# ÐÌà0   àD.à0€ (# (#àAccessories:€€Ô_ÔAWWAÔ_Ô€D€100,€section€7€for€[steel€standpipe]€[steelÐ øH Ðground€storage€reservoir]€with€the€following€additions€orÐ ›ë Ðmodifications.€€Safety€devices€are€required.€€Pipe€connections€shallÐ >Ž Ðbe€[òò€€€€óó]inches€([òò€€€€óó])€mm€in€diameter€for€inlet,€[òò€€€€óó]inches€([òò€€€Ð á1 Ðóó])€mm€in€diameter€for€outlet,€and€[òò€€€€óó]inches([òò€€€€óó])€mm€in€diameterÐ „Ô Ðfor€draining€of€tank.€€Overflow€shall€be€[stub]€[to€ground]€of€[òò€€€Ð 'w Ðóó]inches€([òò€€€€óó])€mm€in€diameter.€€Vent€connection€shall€be€[òò€€€€Ð Ê Ðóó]inches€([òò€€€€óó])€mm.€€A€manhole€cover€on€top€of€the€tank€will€provideÐ m½ Ðaccess€to€the€inside€of€the€tank.Ð` €(#€(# ÐÌà0   àE.à0€ (# (#àTank€Openings:€€See€Work€Data€Sheet.ÐV¦"€(#€(# ÐÌ***************************************************************************Ð œì$ ÐDelete€information€when€corrosion€protection€is€not€required.€Ð ?% Ð****************************************************************************Ð â2& ÐÌà0   àF.à0€ (# (#àCorrosion€Protection:€€Shall€be€sacrificial€anodes€or€other€corrosionÐ (x( Ðprotection€as€recommended€by€the€tank€manufacturer.ÐË)€(#€(# ÐÌ*****************************************************************************Ð  a+ ÐSeveral€options€for€surface€preparation€and€paint€systems€are€available.€Ð ´ , ÐCheck€references€closely€and€use€coating€manufacturerððs€representatives€forÐ W!§- Ðinformation€as€appropriate.€€Attention€to€coating€volatile€organic€compoundsÐ ú!J. Ðand€toxicity€is€also€important.Ð "í/ Ð*****************************************************************************Ð @#0 ÐÌà0   àG.à0€ (# (#àShop€Painting:І$Ö2€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àAfter€sand€blasting,€paint€shall€be€applied€on€the€inside€of€theÐ )%y 3 Ðtank€before€oxidation€occurs.€€Maximum€time€between€sand€blastingÐ Ì%!4 Ðand€painting€shall€be€24€hours.€€Surface€preparation€and€paintingÐ o&¿!5 Ðthe€inside€of€tank€shall€conform€to€NSF€61€and€Ô_ÔSSPCÔ_Ô€Manual,€GoodÐ 'b"6 ÐPainting€Practices,€Volume€1,€Chapter€14.€[Use€formula€151,€withÐ µ'#7 Ðwhite€or€blue€finish€coat.€€Use€contrasting€color€for€eachÐ X(¨#8 Ðcoat.][Use€commercially€available€polyamide€epoxy€system.]€€Ðû(K$9` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àSurface€preparation€and€painting€of€the€outside€of€tank€shall€beÐ ž)î$: Ðin€conformance€with€Ô_ÔSSPCÔ_Ô€Manual,€Good€Painting€Practices,€ChapterÐ A*‘%; Ð14,€Volume€1.Ðä*4&<` (#` (# Їà0   àH.à0€ (# (#àHeating:€€In€cold€climates,€water€tanks€that€serve€fire€systems€andÐ ° Ðthose€where€the€daily€consumption€is€small€will€be€provided€withÐ S£ Ðheating€facilities€according€to€Ô_ÔNFPAÔ_Ô€22.€€The€size€of€the€heatingÐ öF Ðsystem€may€be€reduced€by€an€amount€commensurate€with€the€W€(Btu€perÐ ™é Ðhour)€input€from€makeup€water€during€periods€of€minimum€consumption.Ð <Œ ÐHowever,€the€heating€facility€will€be€capable€of€maintaining€theÐ ß/ Ðcoldest€water€in€the€tank€at€a€minimum€temperature€of€42€degrees€F.€Ð ‚Ò Ð(6€degrees€C).€€(Do€not€provide€Ô_ÔfrostproofÔ_Ô€casings€in€lieu€of€heat€forÐ % u Ðlarge€riser€tanks.ÐÈ €(#€(# ÐÌ2.3à0 € àSOURCE€QUALITY€CONTROLÐ ^ €(#€(# ÐÌ***************************************************************************Ð T ¤  ÐDETERMINE€IF€SHOP€TESTING€IS€REQUIRED.€€WHEN€IT€IS,€THEN€DETERMINE€WHETHER€THEÐ ÷ G  ÐGOVERNMENT€OR€THE€CONTRACTOR€IS€GOING€TO€PERFORM€THE€REQUIRED€TESTING€AND€EDITÐ š ê ÐACCORDINGLY.Ð =  Ð****************************************************************************Ð à0  ÐÌà0   àA.à0€ (# (#àTesting:€€[The€Government€will€perform€the€required€testing,Ð &v  Ðrecording,€and€distributing€of€the€results.]€€[The€Government€willÐ É  Ðmake€arrangements€for€a€certified€independent€testing€laboratory€toÐ l¼  Ðperform€the€required€testing,€recording,€and€distributing€of€theÐ _  Ðresults.]€€[Conduct€the€performance€and€acceptance€tests€according€toÐ ² ÐSection€4€of€Ô_ÔAWWAÔ_Ô€C€600.]€€[Furnish€necessary€equipment,€labor,€andÐ U¥ Ðmaterials€to€conduct€the€testing.€€Testing€shall€be€conducted€in€theÐ øH Ðpresence€of€the€Contracting€Officer.]€€[Arrange€for€a€certifiedÐ ›ë Ðindependent€testing€laboratory,€according€to€the€requirements€ofÐ >Ž ÐSection€01410€„€Testing€Laboratory€Services,€to€perform€the€requiredÐ á1 Ðtesting,€recording,€and€distributing€of€the€results.]ЄԀ(#€(# ÐÌà0   àB.à0€ (# (#àRadiographic€Inspection:€€Shop€fabricated€steel€storage€tanks€shallÐ Ê Ðhave€radiographic€inspection€of€weld€joints.€€Perform€the€inspectionÐ m½ Ðaccording€to€the€requirements€of€Ô_ÔAWWAÔ_Ô€D€100,€section€11,€InspectionÐ `  Ðand€Testing.г!€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àPersonnel€performing€radiographic€inspection€shall€be€qualifiedÐ V¦" Ðaccording€to€Ô_ÔSNTÔ_Ô„T„1A.€€Only€individuals€qualified€Ô_ÔNDTÔ_Ô€Level€II,Ð ùI# Ðor€Ô_ÔNDTÔ_Ô€Level€I€working€under€an€Ô_ÔNDTÔ_Ô€level€II€shall€performÐ œì$ Ðtesting.Ð?%` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àUnacceptable€welds€shall€be€repaired€according€to€the€Ô_ÔAWSÔ_Ô€D€1.1€atÐ â2& Ðno€additional€cost€to€the€Government.Ð…Õ'` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àFurnish€radiographic€test€reports€and€film€to€the€ContractingÐ (x( ÐOfficer.€€Repair€welds€determined€to€be€unacceptable€on€the€basisÐ Ë) Ðof€the€test€results.Ðn¾*` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àWhen€a€weld€is€unacceptable€on€the€basis€of€a€visual€inspection,Ð  a+ Ðadditional€radiographs€shall€be€made€of€that€weld.€€When€the€weldÐ ´ , Ðis€unacceptable,€the€Contractor€shall€pay€the€cost€of€theÐ W!§- Ðadditional€radiograph€and€repair.Ðú!J.` (#` (# Ðà0   àà0€ (# (#à5.à0` €(#€(#àAfter€acceptance€of€the€structure,€the€radiographs€and€writtenÐ "í/ Ðreports€will€become€the€property€of€the€Government.Ð@#0` (#` (# ÐÌÔ  ÔòòPART€3:€€EXECUTIONóóÐ †$Ö2 ÐÌ3.1à0 € àPREPARATIONÐÌ%!4€(#€(# ÐÌà0   àA.à0€ (# (#àClearing€and€Grubbing:€€Shall€be€performed€according€to€Section€Ô_Ô02231Ô_ÔÐ 'b"6 Ð-€Clearing€and€Grubbing.е'#7€(#€(# ÐÌà0   àB.à0€ (# (#àFoundations:€€Construct€foundations€[including€foundation€design]Ð û(K$9 Ðaccording€to€Ô_ÔAWWAÔ_Ô€D€100€for€the€general€type€of€foundation€indicated.О)î$:€(#€(# ÐÌ3.2à0 € àINSTALLATIONÐä*4&<€(#€(# Їà0   àA.à0€ (# (#àPlacement:€€Install€the€tanks€according€to€the€manufacturers'Ð ° Ðinstructions€and€these€specifications€and€drawings.€€Consult€andÐ S£ Ðcomply€with€local€codes.€€Failure€to€follow€these€installationÐ öF Ðinstructions€may€result€in€tank€failure.Йé€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àTanks€should€not€be€dropped,€rolled€or€impacted.€€Chock€the€tanksÐ <Œ Ðuntil€ready€for€installation.Ðß/` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àUse€installed€lift€lugs€to€lift€tank.€€Guide€the€tank€withÐ ‚Ò Ðguidelines.€€Do€not€use€chains€or€cables€around€the€tanks.€€WhenÐ % u Ðtanks€have€to€be€moved,€they€must€be€set€on€smooth€ground€free€ofÐ È  Ðrocks€and€foreign€objects€and€Ô_ÔrechockedÔ_Ô.€€Capacity€of€liftingÐ k »  Ðequipment€should€be€checked€before€installation.€€When€tanks€areÐ  ^  Ðdropped€or€impacted€after€initial€test,€retest€tanks€and€soapÐ ±   Ðareas€of€impact€to€check€for€tank€damage.€€When€damage€hasÐ T ¤  Ðoccurred,€do€not€attempt€repairs.€€Contact€the€area€tank€salesÐ ÷ G  Ðrepresentative€for€further€instructions.К ê` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àWhen€the€tank€has€been€installed€and€tested€for€leakage,€paintÐ =  Ðareas€needing€touch-up.€€Paint€piping€exterior€to€the€tank€aboveÐ à0  Ðground€in€the€same€manner€as€the€tank.ÐƒÓ ` (#` (# ÐÌà0   àB.à0€ (# (#àPiping:€€Ô_ÔAWWAÔ_Ô€C€600,€Sections€1€and€3€and€Section€02514€„€Site€WaterÐ É  ÐDistribution.Ðl¼ €(#€(# ÐÌ3.3à0 € àFIELD€QUALITY€CONTROLв€(#€(# ÐÌ****************************************************************************Ð øH ÐDETERMINE€WHETHER€THE€GOVERNMENT€OR€THE€CONTRACTOR€IS€GOING€TO€PERFORM€THEÐ ›ë ÐREQUIRED€TESTING€AND€EDIT€ACCORDINGLY.Ð >Ž Ð****************************************************************************Ð á1 ÐÌà0   àA.à0€ (# (#àTesting:€€[The€Government€will€perform€to€required€testing,€recording,Ð 'w Ðand€distributing€of€the€results.]€€[The€Government€will€makeÐ Ê Ðarrangements€for€a€certified€independent€testing€laboratory€to€performÐ m½ Ðthe€required€testing,€recording,€and€distributing€of€the€results.]€Ð `  Ð[Conduct€the€performance€and€acceptance€tests€of€theÐ ³! Ð[____________________].€€Furnish€necessary€equipment,€labor,€andÐ V¦" Ðmaterials€to€conduct€the€testing.€€Testing€shall€be€conducted€in€theÐ ùI# Ðpresence€of€the€Contracting€Officer.]€€[Arrange€for€a€certifiedÐ œì$ Ðindependent€testing€laboratory,€according€to€the€requirements€ofÐ ?% ÐSection€01458€„€Testing€Laboratory€Services,€to€perform€the€requiredÐ â2& Ðtesting,€recording,€and€distributing€of€the€results.Ð…Õ'€(#€(# ÐÌà0   àB.à0€ (# (#àRadiographic€Inspection:€€Radiographically€inspect€weld€joints€onÐ Ë) Ðfield€fabricated€steel€storage€tanks.€€Perform€the€inspectionÐ n¾* Ðaccording€to€the€requirements€of€Ô_ÔAWWAÔ_Ô€D€100,€section€11,€InspectionÐ  a+ Ðand€Testing.д ,€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àPersonnel€performing€radiographic€inspection€shall€be€qualifiedÐ W!§- Ðaccording€to€Ô_ÔASNTÔ_Ô„TC1A.€€Only€individuals€qualified€Ô_ÔNDTÔ_Ô€Level€II,Ð ú!J. Ðor€Ô_ÔNDTÔ_Ô€Level€I€working€under€an€Ô_ÔNDTÔ_Ô€Level€II€shall€performÐ "í/ Ðtesting.Ð@#0` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àRepaired€unacceptable€welds€according€to€the€Ô_ÔAWSÔ_Ô€D€1.1€at€noÐ ã#31 Ðadditional€cost€to€the€Government.І$Ö2` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àFurnish€radiographic€test€reports€and€film€to€the€ContractingÐ )%y 3 ÐOfficer.€€Repair€welds€determined€to€be€unacceptable€on€the€basisÐ Ì%!4 Ðof€the€test€results.Ðo&¿!5` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àWhen€a€weld€is€unacceptable€on€the€basis€of€a€visual€inspection,Ð 'b"6 Ðadditional€radiographs€shall€be€made€of€that€weld.€€When€the€weldÐ µ'#7 Ðis€unacceptable,€the€Contractor€shall€pay€the€cost€of€theÐ X(¨#8 Ðadditional€radiograph€and€repair.Ðû(K$9` (#` (# Ðà0   àà0€ (# (#à5.à0` €(#€(#àAfter€acceptance€of€the€structure,€the€radiographs€and€writtenÐ ž)î$: Ðreports€shall€become€the€property€of€the€Government.ÐA*‘%;` (#` (# ÐÐ ä*4&< Ðà0   àC.à0€ (# (#àAir€Test:€€Before€placing€tank€in€the€excavation,€provide€an€aboveÐ ° Ðground€air€test€according€to€the€manufacturers€instructions€or€theÐ S£ Ðfollowing:€Introduce€air€into€the€tank€to€create€an€internal€pressureÐ öF Ðof€3€to€5€Ô_ÔpsigÔ_Ô€while€a€soap€solution€is€applied€to€weld€seams.€€NoÐ ™é Ðevidence€of€air€leakage€shall€be€observable€at€weld€seams,€and€noÐ <Œ Ðpressure€loss€of€1.0€psi€or€more€shall€occur€during€and€8„hour€testÐ ß/ Ðperiod,€without€introduction€of€additional€air.ЂҀ(#€(# ÐÌ*****************************************************************************Ð È  ÐNORMALLY,€CATHODIC€PROTECTION€SHOULD€BE€ADDRESSED€AS€A€DESIGN€SPECIFIC€TO€THEÐ k »  ÐTANK,€THE€CHEMISTRY€OF€WATER€IT€WILL€STORE,€AND€THE€ENVIRONMENT€TO€WHICH€ITÐ  ^  ÐWILL€BE€SUBJECTED.Ð ±   Ð*****************************************************************************Ð T ¤  ÐÌ3.4à0 € àCATHODIC€PROTECTIONК ê€(#€(# ÐÌà0   àA.à0€ (# (#à[Requirements:€€Section€16640€„€Cathodic€Protection.]:€[Provide(s)Ð à0  Ðevenly€spaced,€[12]€pound€magnesium€anode,€suspended€from€the€top€ofÐ ƒÓ  Ðthe€tank€at€a€distance€of€one„third€the€tank€radius€from€the€sides,Ð &v  Ðextending€below€the€water€surface,€electrically€bonded€to€the€tank.]ÐÉ €(#€(# ÐÌ3.5à0 € àCLEANINGÐ_ €(#€(# ÐÌ****************************************************************************Ð U¥ ÐCHOOSE€ONE€OF€THE€FOLLOWING€OPTIONS:Ð øH ÐÔ_ÔAWWAÔ_Ô€C€652€COVERS€THREE€METHODS€FOR€DISINFECTION.€€TYPICALLY,€ONLY€ONE€METHODÐ ›ë ÐWILL€BE€USED€FOR€A€GIVEN€STORAGE€FACILITY€DISINFECTION,€BUT€COMBINATIONS€OFÐ >Ž ÐTHE€METHODS€MAY€BE€USED.€€THE€THREE€METHODS€ARE:Ð á1 Ð1.€€CHLORINATION€OF€THE€FULL€STORAGE€FACILITY€SUCH€THAT€THE€END€OF€THEÐ „Ô ÐAPPROPRIATE€RETENTION€PERIOD€THE€WATER€WILL€HAVE€A€FREE€CHLORINE€RESIDUAL€OFÐ 'w ÐNOT€LESS€THAN€10€MG/L.Ð Ê Ð2.€€SPRAYING€OR€PAINTING€OF€ALL€STORAGE€FACILITY€WATER€CONTACT€SURFACES€WITH€AÐ m½ ÐSOLUTION€OF€200€MG/L€AVAILABLE€CHLORINE.Ð `  Ð3.€€CHLORINATION€OF€FULL€STORAGE€FACILITY€WITH€WATER€HAVING€A€FREE€CHLORINEÐ ³! ÐRESIDUAL€OF€2€MG/L€AFTER€24€HR.Ð V¦" Ð*****************************************************************************Ð ùI# ÐÌà0   àA.à0€ (# (#àDisinfection:€€[Disinfect€tank€and€connecting€lines€according€to€Ô_ÔAWWAÔ_ÔÐ ?% ÐC€652,€[Method€1]€[Method€2]€[or]€[Method€3].€€After€disinfection,Ð â2& Ðflush€tank€and€connecting€lines€and€dispose€of€chlorinated€water€inÐ …Õ' Ðaccordance€with€Ô_ÔAWWAÔ_Ô€C€651€[and€according€to€Section€02512€„Ð (x( ÐDisinfection€of€Water€Distribution].ÐË)€(#€(# ÐÌ*****************************************************************************Ð  a+ ÐOBSTRUCTION€LIGHTING€MAY€BE€REQUIRED€ON€ELEVATED€TANKS.€€THE€FOLLOWINGÐ ´ , ÐPARAGRAPH€CAN€BE€DELETED€FOR€OTHER€TYPES.Ð W!§- Ð*****************************************************************************Ð ú!J. ÐÌ3.6à0 € àOBSTRUCTION€LIGHTINGÐ@#0€(#€(# ÐÌà0   àA.à0€ (# (#àRequirements:€€Provide€obstruction€lighting€as€indicated.€€PlaceÐ †$Ö2 Ðwiring€in€rigid€conduit€and€threaded€conduit€fittings.€€ControlÐ )%y 3 Ðobstruction€lighting€by€a€[time€switch]€[photo„electric€control]Ð Ì%!4 Ðenclosed€in€a€cast€metal€weatherproof€housing€located€approximately€Ð o&¿!5 Ð6„feet€(1.8€m)€above€the€ground€on€[standpipe]€[one€of€the€towerÐ 'b"6 Ðlegs].€€Perform€electrical€work€in€accordance€with€Ô_ÔNFPAÔ_Ô€70.е'#7€(#€(# Ðâ âÐ X(¨#8 ÐÔ  Ôâ âòòPART€4:€€MEASUREMENT€AND€PAYMENTóóÐ ° ÐÌ4.1à0 € àMETHOD€OF€MEASUREMENTÐöF€(#€(# Ð****************************************************************************Ð ™é ÐWHEN€A€"LUMP€SUM"€CONTRACT€IS€USED,€DELETE€THE€TITLE€PART€4:€€MEASUREMENT€ANDÐ <Œ ÐPAYMENT,€AND€BOTH€ARTICLES€FROM€THIS€SECTION.€€MEASUREMENT€AND€PAYMENT€WILL€BEÐ ß/ ÐADDRESSED€IN€PART€4€OF€SECTION€01009€OR€SECTION€01010.Ð ‚Ò ÐÌWHEN€NOT€A€"LUMP€SUM"€CONTRACT,€SELECT€APPLICABLE€PHRASES;€USE€THE€"NOÐ È  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Ð****************************************************************************Ð á1 ÐÌà0   àA.à0€ (# (#àPayment:€€[No€direct€payment€for€the€work€described€under€this€sectionÐ 'w Ðwill€be€made.€€Consideration€for€this€item€shall€be€included€in€theÐ Ê Ðbid€price€for€other€items€of€the€Contract.]€€[Prices€and€payment€willÐ m½ Ðbe€full€compensation€for€the€work€described€in€this€section.€€PaymentÐ `  Ðwill€be€made€under:]г!€(#€(# ÐÌà0   àà0€ (# (#àòòPay€Itemóó€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€à0@€(#€(#àà  àòòPay€UnitóóÐùI#@(#@(# ÐÌà0   àà0€ (# (#à13209(01)€€Elevated€Steel€Water€Storage€Tank.€.€.€.€.€.€.€.€.€Lump€SumÐ?%€(#€(# Ðà   àà0 € à13209(02)€€Elevated€Steel€Water€Storage€Tank.€.€.€.€.€.€.€.€.€EachÐâ2&€(#€(# Ðà   àà0 € à13209(10)€€Steel€Standpipe.€.€.€.€.€.€.€.€.€.€.€.€.€.€.€.€.€.€Lump€SumÐ…Õ'€(#€(# Ðà   àà0 € à13209(11)€€Steel€Standpipe.€.€.€.€.€.€.€.€.€.€.€.€.€.€.€.€.€.€EachÐ(x(€(#€(# Ðà   àà0 € à13209(20)€€Steel€Ground€Water€Storage€Tank€€.€.€.€.€.€.€.€.€.€Lump€SumÐË)€(#€(# Ðà   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