PPI 035 33 56 21.17.pdf

Phase 2 Tank Far m I mpr ovement s ( P2002) N4425522F4025 FLCPS Manchest er , Washi ngt on PN 139588

SECTI ON 33 56 21. 17

SI NGLE WALL ABOVEGROUND FI XED ROOF STEEL POL STORAGE TANK

11/ 18, CHG 1: 11/ 20

PART 1 GENERAL

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

AMERI CAN I RON AND STEEL I NSTI TUTE ( AI SI )

AI SI E 1 ( 2011) St eel Pl at e Engi neer i ng Dat a Ser i es

- Desi gn of Pl at e St r uct ur es, Vol umes I & I I

AMERI CAN PETROLEUM I NSTI TUTE ( API )

API MPMS 2. 2A ( 1995; R 2017) Manual of Pet r ol eum Measur ement St andar ds Chapt er 2- Tank Cal i br at i on Sect i on 2A- Measur ement and Cal i br at i on of Upr i ght Cyl i ndr i cal Tanks by t he Manual Tank St r appi ng Met hod

API MPMS 2. 2B ( 1989; R 2019) Manual of Pet r ol eum Measur ement St andar ds Chapt er 2: Tank Cal i br at i on - Sect i on 2B: Cal i br at i on of Upr i ght Cyl i ndr i cal Tanks Usi ng t he Opt i cal Ref er ence Li ne Met hod

API MPMS 2. 2C ( 2002; R 2013) Manual of Pet r ol eum Measur ement St andar ds Chapt er 2: Tank Cal i br at i on - Sect i on 2C - Cal i br at i on of Upr i ght Cyl i ndr i cal Tanks Usi ng t he Opt i cal - Tr i angul at i on Met hod

API MPMS 2. 2D ( 2003; R 2014) Manual of Pet r ol eum Measur ement St andar ds Chapt er 2: Tank Cal i br at i on - Sect i on 2D Cal i br at i on of Upr i ght Cyl i ndr i cal Tanks Usi ng t he I nt er nal El ect r o- Opt i cal Di st ance- Rangi ng Met hod

API RP 2009 ( 2002; R 2007; 7t h Ed) Saf e Wel di ng, Cut t i ng, and Hot Wor k Pr act i ces i n Ref i ner i es, Gasol i ne Pl ant s, and Pet r ochemi cal Pl ant s

API St d 650 ( 2020; Er r at a 1 2021) Wel ded Tanks f or Oi l St or age

API St d 653 ( 2014; Addendum 1 2018) Tank I nspect i on, Repai r , Al t er at i on, and Reconst r uct i on

SECTI ON 33 56 21. 17 Page 1 8/ 28/ 2023 Amendment 0003

AMERI CAN SOCI ETY FOR NONDESTRUCTI VE TESTI NG ( ASNT)

ASNT SNT- TC- 1A ( 2020) Recommended Pr act i ce f or Per sonnel Qual i f i cat i on and Cer t i f i cat i on i n Nondest r uct i ve Test i ng

AMERI CAN SOCI ETY OF MECHANI CAL ENGI NEERS ( ASME)

ASME B16. 5 ( 2020) Pi pe Fl anges and Fl anged Fi t t i ngs NPS 1/ 2 Thr ough NPS 24 Met r i c/ I nch St andar d

ASME B16. 9 ( 2018) Fact or y- Made Wr ought But t wel di ng Fi t t i ngs

ASME B16. 11 ( 2016) For ged Fi t t i ngs, Socket - Wel di ng and Thr eaded

ASME B31. 3 ( 2020) Pr ocess Pi pi ng

AMERI CAN WELDI NG SOCI ETY ( AWS)

AWS A5. 10/ A5. 10M ( 2021) Wel di ng Consumabl es - Wi r e El ect r odes, Wi r es and Rods f or Wel di ng of Al umi num and Al umi num- Al l oys - Cl assi f i cat i on

AWS QC1 ( 2016) Speci f i cat i on f or AWS Cer t i f i cat i on of Wel di ng I nspect or s

ASTM I NTERNATI ONAL ( ASTM)

ASTM A123/ A123M ( 2017) St andar d Speci f i cat i on f or Zi nc ( Hot - Di p Gal vani zed) Coat i ngs on I r on and St eel Pr oduct s

ASTM A325 ( 2014) St andar d Speci f i cat i on f or St r uct ur al Bol t s, St eel , Heat Tr eat ed, 120/ 105 ksi Mi ni mum Tensi l e St r engt h

ASTM B241/ B241M ( 2016) St andar d Speci f i cat i on f or Al umi num and Al umi num- Al l oy Seaml ess Pi pe and Seaml ess Ext r uded Tube

ASTM B247 ( 2020) St andar d Speci f i cat i on f or Al umi num and Al umi num- Al l oy Di e For gi ngs, Hand For gi ngs, and Rol l ed Ri ng For gi ngs

ASTM E329 ( 2021) St andar d Speci f i cat i on f or Agenci es Engaged i n Const r uct i on I nspect i on, Test i ng, or Speci al I nspect i on

NACE I NTERNATI ONAL ( NACE)

NACE SP0178 ( 2007) Desi gn, Fabr i cat i on, and Sur f ace Fi ni sh Pr act i ces f or Tanks and Vessel s t o be Li ned f or I mmer si on Ser vi ce

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NATI ONAL ELECTRI CAL MANUFACTURERS ASSOCI ATI ON ( NEMA)

NEMA MG 1 ( 2018) Mot or s and Gener at or s

NATI ONAL FI RE PROTECTI ON ASSOCI ATI ON ( NFPA)

NFPA 70 ( 2020; ERTA 20- 1 2020; ERTA 20- 2 2020; TI A

20- 1; TI A 20- 2; TI A 20- 3; TI A 20- 4)

Nat i onal El ect r i cal Code

U. S. DEPARTMENT OF DEFENSE ( DOD)

MI L- DTL- 5624 ( 2016; Rev W; Not i ce 1 2020) Tur bi ne Fuel , Avi at i on, Gr ades JP- 4 and JP- 5

U. S. NATI ONAL ARCHI VES AND RECORDS ADMI NI STRATI ON ( NARA)

29 CFR 1910. 25 St ai r ways

1. 2 SUBMI TTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" or " S" c l assi f i cat i on. Submi t t al s not havi ng a " G" or " S" c l assi f i cat i on ar e f or Cont r act or Qual i t y Cont r ol appr oval . Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

SD- 01 Pr econst r uct i on Submi t t al s

Copi es of API Publ i cat i ons

Acknowl edgement of API St d 650

NACE Vi sual Compar at or ; G

Acknowl edgement of Sur f ace Fi ni sh Requi r ement s; G

SD- 02 Shop Dr awi ngs

St eel Tank; G

Tank Bot t om Shi mmi ng and Gr out i ng Pl an; G

Wat er Dr aw- Of f Syst em; G

Pr oduct Saver Tank; G

Channel Mount i ng Pads; G

SD- 03 Pr oduct Dat a

St r uct ur al St eel ; G

Car bon St eel , Pi pe Fi t t i ngs, Fl anges, Gasket s, and Bol t i ng; G

Al umi num Pi pi ng; G

Al umi num Fl anges; G

Gasket s f or Manhol e Cover s, St i l l i ng Wel l Fl anges, and Roof Cent er

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Vent ; G

Tank Gr out ; G

Tank Shi ms; G

Sampl e Gauge Hat ch; G

Mechani cal Tape Level Gauge; G

Cent er Roof Vent ; G

St ai r way St ep and Pl at f or m Tr ead Gr at i ng; G

St ai r way Bol t i ng; G

Ant i sei ze Compound; G

SD- 05 Desi gn Dat a

St eel Tank Desi gn; G

SD- 06 Test Repor t s

API St d 653 I nspect i on Repor t s; G

Vi sual Exami nat i on of Ver t i cal Shel l - Seam Tack Wel ds

Vi sual Exami nat i on of I ni t i al Pass of I nt er nal Shel l - t o- Bot t om Wel d

Vacuum Box Test i ng of I nt er nal Shel l - t o- Bot t om I ni t i al Wel d Pass

Vi sual Exami nat i on of Compl et ed I nt er nal and Ext er nal Shel l - t o- Bot t om Wel ds

Radi ogr aphi c Exami nat i on of Shel l But t Wel d

Vi sual Exami nat i on of Shel l But t Wel ds

Vi sual Exami nat i on of Fi l l et Wel ds

Vi sual Exami nat i on of Tank Bot t om Pl at es

Vacuum Box Test i ng of Tank Bot t om Fi l l et Wel d

Pneumat i c Test s of Rei nf or ci ng Pl at es

Hydr ost at i c Test i ng; G

Shel l Set t l ement Measur ement s Taken Bef or e, Dur i ng, and Af t er Hydr ost at i c Test i ng; G

I nt er nal Bot t om El evat i on Readi ngs Taken Bef or e and Af t er Hydr ost at i c Test i ng

Shel l Pl umbness

Shel l Roundness

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Maxi mum Local Devi at i ons, Shel l

Ti ght ness Test Recor ds

Tank Bot t om Puddl e Test

Roof Puddl e Test

St i l l i ng Wel l Pl umbness Test

SD- 07 Cer t i f i cat es

Qual i f i cat i ons of Tank Er ect or

Wel di ng Pr ocedur e Speci f i cat i ons ( WPS)

Wel di ng Pr ocedur e Qual i f i cat i on Recor ds ( PQRs)

Wel der Per f or mance Qual i f i cat i on Recor ds ( WPQ)

Tank Cal i br at i on Exper i ence

Wel d I nspect or Cer t i f i cat i on

NDE Per sonnel Cer t i f i cat i on

Qual i f i cat i ons of Test i ng Agency

Qual i f i cat i ons of API St d 653 I nspect or

SD- 09 Manuf act ur er ' s Fi el d Repor t s

Mi l l Test Repor t s; G

I mpact Test Dat a; G

SD- 10 Oper at i on and Mai nt enance Dat a

API St d 653 I nspect i on Repor t s, Dat a Package 2

Tank Cal i br at i on Tabl e, Dat a Package 2

El ect r oni c Cal i br at i on Tabl e, Dat a Package 2

Mai nt enance I nst r uct i ons, Dat a Package 2

Oper at or I nst r uct i ons, Dat a Package 2

Submi t i n accor dance wi t h Sect i on 01 78 23 OPERATI ON AND

MAI NTENANCE DATA.

1. 3 COPI ES OF API PUBLI CATI ONS

Pr ovi de f our copi es of API RP 2009, API St d 650, and API MPMS 2. 2A, API MPMS 2. 2B, API MPMS 2. 2C and API MPMS 2. 2D t o t he Cont r act i ng Of f i cer .

1. 4 RELATED REQUI REMENTS

Mat er i al s, desi gn, f abr i cat i on, wel di ng, er ect i on, t est i ng, and

SECTI ON 33 56 21. 17 Page 5 appur t enances must be i n accor dance wi t h API St d 650 and as i ndi cat ed and speci f i ed her ei n. Submi t acknowl edgement of API St d 650 as r equi r ed st andar d. Pr oduct s t o be st or ed i n t he t ank ar e MI L- DTL- 5624 Gr ade JP- 5 or Di esel ( F- 76) . 05 50 13 MI SCELLANEOUS METAL FABRI CATI ONS and Sect i on 26 20 00 I NTERI OR DI STRI BUTI ON SYSTEM appl y t o t hi s sect i on except as speci f i ed ot her wi se.

1. 5 DESI GN REQUI REMENTS

Desi gn t ank t o r esi st t he f ol l owi ng l oads and f or ces:

a. Wi nd: 108 mph.

b. Desi gn speci f y gr avi t y of l i qui d i s 1. 0 f or hydr ot est wi t h wat er .

c. Desi gn shel l and nozzl es f or a desi gn l i qui d l evel equal t o t ank hi gh- hi gh l evel condi t i on.

d. Roof snow l oad of 25 psf .

1. 5. 1 Sei smi c Desi gn Requi r ement s

Sei smi c l oads and f or ces must be i n accor dance wi t h API St d 650 Appendi x E. See Sheet S- 001 f or sei smi c desi gn par amet er s.

1. 5. 1. 1 Col umns

Pr ovi de t ank wi t h mul t i pl e r oof suppor t col umns. See dr awi ngs f or pr ef er r ed col umn l ocat i ons. Desi gn r oof suppor t col umns t o r esi st t he f or ces caused by s l oshi ng of t he l i qui d cont ent s dur i ng a sei smi c event .

Pr ovi de ext er i or epoxy coat ed r oof suppor t col umn. Pr ovi de col umns wi t h an i ncr eased wal l t hi ckness f or cor r osi on al l owance gr eat er t han t he speci f i ed 1/ 16- i nch t hi ckness.

1. 5. 1. 2 Shel l Hei ght

Shel l hei ght must pr ovi de cl ear ance bet ween t he hi gh- hi gh l i qui d l evel set t i ng and t he f i xed r oof t hat i ncl udes an al l owance of at l east 7 f eet - 1 i nch f or s l oshi ng due t o sei smi c event .

1. 5. 2 Tank Nozzl es

Desi gn t ank nozzl es t o accommodat e ext er nal pi pi ng l oads i n accor dance wi t h API St d 650.

1. 5. 3 Tank Roof

Pr ovi de t ank r oof pl at es, l ap wel ded wi t h i nner pl at es on t op, and at l east 1/ 4 i nch t hi ck ( i ncl udes 1/ 16 i nch cor r osi on al l owance) . Suppor t beams must be desi gned so as t o mi ni mi ze uncoat abl e sur f aces. Pr ovi de sol i d web t ype r oof beams. Open web t r usses ar e not per mi t t ed. Do not at t ach r oof suppor t member s t o t he r oof pl at e. Pr ovi de a r oof wi t h ever y par t havi ng a s l ope of 1- 1/ 2: 12.

1. 5. 3. 1 Emer gency Vent i l at i on

Pr ovi de emer gency vent i l at i on by a f r angi bl e r oof desi gn. The wel d at t achi ng t he r oof pl at e t o t he t op angl e must not be gr eat er t han 3/ 16 i nch.

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1. 5. 4 Cor r osi on Al l owance

Pr ovi de cor r osi on al l owance of 1/ 16 i nch i n t hi ckness of st eel f or t he i nt er i or of t he shel l , r oof , and i nt er i or st r uct ur al member s.

1. 5. 5 Desi gn Met al Temper at ur e

API St d 650 0 t o 100 degr ees F.

1. 5. 6 Tank Bot t om

Tank bot t om and annul ar r i ng i f r equi r ed must be as i ndi cat ed. Bot t om pl at es must be l ap wel ded wi t h i nner pl at es on bot t om.

1. 6 QUALI FI CATI ONS OF TANK ERECTOR

The Cont r act or must be r egul ar l y engaged i n t he er ect i on of API St d 650 t anks. The Cont r act or must cer t i f y successf ul compl et i on of at l east 12 f i el d er ect ed API St d 650 abovegr ound t anks i n t he past t hr ee year s. The i nf or mat i on pr ovi ded i n t he Cont r act or ' s cer t i f i cat i on must i ncl ude t he dat e of t he not i ce t o pr oceed, dat e of compl et i on, l ocat i on of t ank, Owner , Owner ' s poi nt of cont act , t ank s i ze, conf i gur at i on ( e. g. , ver t i cal AST, hor i zont al AST) , pr oduct st or ed, and mat er i al of const r uct i on.

1. 6. 1 Wel di ng Qual i f i cat i ons

Submi t Wel di ng Pr ocedur e Speci f i cat i ons ( WPS) , Wel di ng Pr ocedur e Qual i f i cat i on Recor ds ( PQRs) , and Wel der Per f or mance Qual i f i cat i on Recor ds ( WPQ) . Qual i f y al l wel der s on si t e. Compl et e al l WPQs speci f i cal l y f or t hi s pr oj ect . Gi ve t he Cont r act i ng Of f i cer not i ce and oppor t uni t y t o wi t ness each of t he wel der per f or mance qual i f i cat i on t est s 24 hour s i n advance of t he per f or mance of each of t he t est s.

1. 7 TANK CALI BRATI ON EXPERI ENCE

Per f or m cal i br at i on of t he t ank usi ng a qual i f i ed or gani zat i on t hat can cer t i f y t o havi ng per f or med successf ul and accur at e cal i br at i on of at l east ei ght t anks of compar abl e t ype and si ze wi t hi n t he l ast t wo year s.

Submi t cer t i f i ed dat a on t ank cal i br at i on exper i ence.

1. 8 QUALI TY ASSURANCE

1. 8. 1 Del i ver y and St or age Handl i ng

Handl e, st or e, and pr ot ect syst em component s and mat er i al s t o pr event damage bef or e and dur i ng i nst al l at i on i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons, and as appr oved by t he Cont r act i ng Of f i cer . Repl ace damaged or def ect i ve i t ems.

1. 8. 2 St eel Tank Dr awi ng Requi r ement s

Dr awi ngs f or t he st eel t ank must be pr epar ed, seal ed, s i gned, and dat ed by a r egi st er ed pr of essi onal engi neer . I ncl ude er ect i on di agr ams and det ai l dr awi ngs of t he t ank r oof , shel l pl at es, wi nd gi r der s, openi ngs, and connect i ons f or f i t t i ngs and appur t enances. The st eel t ank dr awi ngs must i ncl ude t he f ol l owi ng:

a. Tank er ect i on det ai l s showi ng di mensi ons, s i zes, t hi ckness, gauges, SECTI ON 33 56 21. 17 Page 7 mat er i al s, f i ni shes, and er ect i on pr ocedur es.

b. Tank component det ai l s t o i ncl ude as a mi ni mum:

( 1) I nt er nal pi pe and f i t t i ngs, i ncl udi ng suppor t s and bear i ng pl at es.

( 2) Tank Bot t om t o f oundat i on gasket .

( 3) Tank Bot t om Shi mmi ng and Gr out i ng pl an and det ai l s.

( 4) Tank Anchor s.

( 5) Locat i on of al ar m and cont r ol swi t ches.

( 6) Locat i on of nozzl es i ncl udi ng nozzl es f or gauges and al ar ms.

( 7) Roof suppor t syst em det ai l s.

( 8) Roof manhol e.

( 9) Cent er r oof vent .

( 10) Shel l manhol es and davi t s.

( 11) St ai r way, i ncl udi ng r epl aceabl e st ai r t r ead i nst al l at i on and pl at f or ms.

( 12) Channel mount i ng pads.

( 13) Tank Dat a Pl at e Pl an and I nf or mat i on.

( 14) Shel l t o bot t om connect i on.

( 15) Tank bot t om t o r i ngwal l i nt er f ace.

( 16) St i l l i ng wel l s.

( 17) Gr oundi ng l ugs.

( 18) Sump.

( 19) Scaf f ol d Cabl e Suppor t .

1. 8. 3 Dat a Requi r ement s

Cal cul at i ons f or t he st eel t ank desi gn must be pr epar ed by a St at e r egi st er ed Pr of essi onal Engi neer . St eel t ank desi gn cal cul at i ons must i ncl ude cal cul at i ons f or t he desi gn of t he shel l , as wel l as cal cul at i ons f or t he desi gn of t he r oof , f r angi bl e r oof connect i on, t ank anchor age and r oof suppor t .

1. 8. 4 Wel d I nspect or Cer t i f i cat i on

Cont r act or must ar r ange f or t he ser vi ces of an i ndependent ( i mpar t i al t hi r d par t y not a par t or af f i l i at ed wi t h Cont r act or or subcont r act or pr i nci pal or subsi di ar y busi nesses) wel d i nspect or cer t i f i ed by t he Amer i can Wel di ng Soci et y t o over see al l wel d t est s and exami nat i ons r equi r ed by API St d 650.

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1. 8. 5 Test Repor t s

Test Repor t s must consi st of t he f ol l owi ng:

a. Recor ds made by t he AWS cer t i f i ed i nspect or f or al l dut i es per f or med per par agr aph 4. 2 of AWS QC1.

b. Al l Nondest r uct i ve Exami nat i on ( NDE) ( e. g. ; r adi ogr aph, ul t r asound, et c) r epor t s wi t h uni que wel d I D f or each wel d t est ed.

c. " Wel d Map" . These maps/ dr awi ngs cor r el at e t he shop dr awi ngs submi t t ed t o t he NDE r epor t s. The NDE r epor t t hat shows a wel d number as accept abl e i s cor r el at ed wi t h wel d number on t he dr awi ngs.

Pr ovi de t he l ocat i on of each wel d, what pr ocedur e was used, whi ch wel der made t he wel d, t he r esul t s of t he v i sual t est , and t he r esul t s of t he NDE.

1. 8. 6 I nspect i on and NDE Per sonnel

Al l i nspect i on and NDE per sonnel must be qual i f i ed i n accor dance wi t h t he f ol l owi ng r equi r ement s. The Cont r act or must submi t t he qual i f i cat i ons of al l t he t est i ng per sonnel t hat wi l l per f or m al l f i el d t est s f or r evi ew by t he Cont r act i ng Of f i cer . The qual i f i cat i ons of al l per sonnel on t he j ob s i t e t hat wi l l per f or m wel di ng i nspect i ons and NDE must be submi t t ed f or appr oval . Al l i nspect or s and NDE exami ner s must have a mi ni mum of one- year exper i ence i nspect i ng t he pi pi ng or pl at e mat er i al bei ng used and f i ve year s i n mi l i t ar y or commer ci al f uel i ng syst ems or pet r ol eum r ef i ner i es, power gener at i ng pl ant s, paper mi l l s , or chemi cal pr ocess pl ant s.

1. 8. 6. 1 NDE Per sonnel Cer t i f i cat i on

A wr i t t en pr ocedur e/ qual i t y assur ance pr ogr am f or t he t r ai ni ng, exami nat i on, cer t i f i cat i on, cont r ol and admi ni st r at i on of NDE per sonnel must be est abl i shed. The pr ocedur es must be based on appr opr i at e speci f i c and gener al gui del i nes of t r ai ni ng and exper i ence r ecommended by ASNT SNT- TC- 1A. Submi t pr oof of compl i ance of nondest r uct i ve t est exami ner s wi t h API St d 650 i ncl udi ng, but not l i mi t ed t o, exami ner s per f or mi ng r adi ogr aphi c ( RT) , v i sual ( VT) , penet r ant ( PT) , ul t r asoni c ( UT) , and magnet i c par t i c l e ( MT) t est i ng.

1. 8. 6. 2 Qual i f i cat i ons of Test i ng Agency

The t est i ng agency, t est i ng l abor at or y, t echni cal consul t ant or cont r act or ' s appr oved qual i t y assur ance or gani zat i on must meet t he r equi r ement s of ASTM E329.

1. 8. 7 Qual i f i cat i ons of API St d 653 I nspect or

Cont r act or must ar r ange f or t he ser vi ces of an i ndependent ( i mpar t i al t hi r d par t y not a par t or af f i l i at ed wi t h Cont r act or or subcont r act or pr i nci pal or subsi di ar y busi nesses) API St d 653 i nspect or . API St d 653 I nspect or must have a mi ni mum of f i ve year s of exper i ence. Submi t copy of cur r ent cer t i f i cat e.

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PART 2 PRODUCTS

2. 1 MATERI ALS

Conf or m t o t he f ol l owi ng r equi r ement s except t hat mat er i al s not def i ni t el y speci f i ed must conf or m t o API St d 650. Al l mat er i al s must be car bon st eel unl ess ot her wi se not ed.

2. 1. 1 Mat er i al s f or Syst em Component s, Pi pe, and Fi t t i ngs

a. The t ank f i l l l i ne, t ank i ssue l i ne, and t ank l ow suct i on l i ne pi pi ng and f i t t i ngs must be i nt er i or and ext er i or coat ed car bon st eel . Al l val ves i ncl udi ng DBB val ves must be as speci f i ed. Al l pi pi ng and f i t t i ngs 2 i nches and smal l er must be st ai nl ess st eel .

b. Al l pi pi ng and f i t t i ngs i nsi de t he t ank must be ext er i or epoxy coat ed car bon st eel except f or pi pi ng 2 i nches and smal l er whi ch must have an uncoat ed i nt er i or . St i l l i ng wel l and l adder mat er i al must be as i ndi cat ed.

c. Do not wel d st ai nl ess st eel t o car bon st eel , except wher e speci f i cal l y i ndi cat ed or speci f i ed.

d. I f mat er i al s f or syst em component s ar e not speci f i ed, t hey must be st ai nl ess st eel .

e. Pr ovi de st ai nl ess st eel HLV f l oat cont r ol chamber , pi l ot , l evel swi t ch housi ngs, and l evel swi t ch pr obe hol der s.

2. 2 STRUCTURAL STEEL

API St d 650. Pr ovi de mi l l t est r epor t s f or shel l pl at es, shel l nozzl e r ei nf or ci ng pl at es, shel l i nser t pl at es, and al l st eel pl at e used i n const r uct i on of shel l penet r at i ons. Pr ovi de i mpact t est dat a when r equi r ed by API St d 650 f or t he mat er i al gr oup and t hi ckness pr ovi ded.

2. 3 CARBON STEEL, PI PE FI TTI NGS, FLANGES, GASKETS, AND BOLTI NG

Car bon st eel , pi pe f i t t i ngs, f l anges, gasket s, and bol t i ng must be pr ovi ded i n accor dance wi t h Sect i on 33 52 40 FUEL SYSTEMS PI PI NG ( NON- HYDRANT) , except gasket s i nsi de t ank and on r oof nozzl es must be non- asbest os, f uel r esi st ant composi t i on, or pr ef or med t ype. Fl anges must be wel d- neck t ype i n accor dance wi t h ASME B16. 5. Thr eaded f i t t i ngs must conf or m t o ASME B16. 11 ( Cl ass 3000) , and but t - wel ded f i t t i ngs must conf or m t o ASME B16. 9.

2. 4 STAI NLESS STEEL PI PE, FI TTI NGS, FLANGES, GASKETS, AND BOLTI NG

St ai nl ess st eel pi pe, pi pe f i t t i ngs, f l anges, gasket s, and bol t i ng must be pr ovi ded i n accor dance wi t h Sect i on 33 52 40 FUEL SYSTEMS PI PI NG ( NON- HYDRANT) and API St d 650, except : Fl anges must be wel d- neck t ype i n accor dance wi t h ASME B16. 5, t hr eaded f i t t i ngs must conf or m t o ASME B16. 11 ( Cl ass 3000) , and but t - wel ded f i t t i ngs must conf or m t o ASME B16. 9.

2. 5 ALUMI NUM PI PI NG FOR STI LLI NG WELLS

Al umi num pi pe must be ASTM B241/ B241M, al l oy 6061- T6, Schedul e 40 f or pi pe si zes 2 i nches t hr ough 12 i nches; Schedul e 80 f or pi pe si zes 2 i nches and smal l er .

SECTI ON 33 56 21. 17 Page 10

2. 6 BOLTI NG AND ALUMI NUM FLANGES FOR STI LLI NG WELLS

Al umi num f l anges must be ASME B16. 5, Cl ass 150 or Cl ass 300 wher e i ndi cat ed, Fl at Face Type, except al umi num must conf or m t o ASTM B247, al l oy 6061- T6 or al l oy 356- T6. Al umi num f l anges may be wel di ng neck or s l i p- on t ype. Pr ovi de bol t i ng i n accor dance wi t h Sect i on 33 52 40 FUEL SYSTEMS PI PI NG ( NON- HYDRANT) . Pr ovi de el ect r i cal i sol at i on f or separ at i on of di ssi mi l ar met al s.

2. 7 WELDI NG FOR ALUMI NUM PI PI NG

2. 7. 1 Pr ocess f or Al umi num

ASME B31. 3, Gas Tungst en Ar c Wel di ng ( GTAW) Pr ocess or Gas Met al Ar c Wel di ng ( GMAW) Pr ocess. Backi ng r i ngs ar e not per mi t t ed.

2. 7. 2 Al umi num Wel di ng El ect r odes and Rods

AWS A5. 10/ A5. 10M, ER5356 el ect r odes.

2. 8 BOLTI NG FOR SHELL MANHOLE COVERS

Bol t i ng f or shel l manhol es must be i n accor dance wi t h Sect i on 33 52 40

FUEL SYSTEMS PI PI NG ( NON- HYDRANT) .

2. 9 GASKETS FOR MANHOLE COVERS, STI LLI NG WELL FLANGES, AND ROOF CENTER VENT

Pr ovi de composi t i on asbest os- f r ee, f uel and f i r e- r esi st ant gasket s f or shel l manhol e cover s, st i l l i ng wel l f l anges, and r oof cent er vent .

2. 10 TANK BOTTOM TO FOUNDATI ON SEAL

2. 10. 1 Tank Shi ms and Tank Gr out - Anchor ed Tanks

Gr out must be non- shr i nk t ype and consi st of 1 par t Por t l and cement t o 1- 1/ 2 par t s sand by vol ume. Do not use cal c i um chl or i de admi xt ur es. When t he ambi ent t emper at ur e i s expect ed t o f al l bel ow 60 degr ees F wi t hi n t he next 48 hour s, t he cement used must be " hi gh ear l y st r engt h" t ype.

2. 11 I NTERI OR PROTECTI VE COATI NG SYSTEM

Sect i on 09 97 13. 15 LOW VOC POLYSULFI DE I NTERI OR COATI NG OF WELDED STEEL

PETROLEUM FUEL TANKS.

2. 12 EXTERI OR PROTECTI VE COATI NG SYSTEM

Sect i on 09 97 13. 27 HI GH PERFORMANCE COATI NG FOR STEEL STRUCTURES. As i ndi cat ed on Cont r act Dr awi ngs, s l i p r esi st ance coat i ng wal kways wi l l be pr ovi ded on r oof f or saf e oper at or access t o t he sampl e gauge wel l , r oof manhol e, and cent er r oof appur t enances.

2. 13 APPURTENANCES

2. 13. 1 Sampl e Gauge Hat ch

Pr ovi de sampl e gauge hat ch on t op of st i l l i ng wel l wher e i ndi cat ed f or manual gaugi ng. Pr ovi de gasket f or di ssi mi l ar met al pr ot ect i on. The t ank er ect or must measur e t he st i l l i ng wel l gauge hat ch hol d- of f di st ance wi t h

SECTI ON 33 56 21. 17 Page 11 t he t ank empt y, hal f f ul l , and f ul l , and pl ace t he i nf or mat i on on a per manent l y af f i xed mar ker at t ached t o t he sampl e gauge hat ch. Thi s must be per f or med dur i ng t ank f i l l t est i ng. The st i l l i ng wel l gauge hat ch hol d- of f di st ance i s def i ned as t he di st ance f r om t he t ank bot t om dat um pl at e t o t he t op of t he gauge hat ch.

2. 13. 2 Mechani cal Tape Level Gauge

The mechani cal t ape l evel gauge must be at t ached t o t he t ank f l oor by gui dewi r e anchor s and compl et e wi t h al l necessar y i nci dent al pi pe, pul l eys, f i t t i ngs, suppor t s, suppor t br acket s, t ensi on spr i ngs, and gui de wi r e assembl i es. The gauge must aut omat i cal l y pr ovi de t he l ocat i on of t he pr oduct l evel wi t hi n pl us or mi nus 1/ 8 i nch of t he act ual l i qui d l evel .

The head must be made of al umi num and must be mount ed on t he ext er i or of t he t ank shel l appr oxi mat el y 54 i nches above t he t ank bot t om. The head must cont ai n a gl ass cover ed wi ndow compl et e wi t h an i nsi de wi per . The seal s must be made of Tef l on. The shaf t s and gr aduat ed t ape assembl y must be made of st ai nl ess st eel . The t ape dr um must be made of pl ast i c. The t ape must be of suf f i c i ent l engt h t o measur e t he l i qui d l evel f r om t he bot t om t o t he t op of t he st or age t ank. Gauge measur ement s must be gr aduat ed i n 1/ 16 i nch i ncr ement s. The t ape must be car r i ed over pul l eys housed i n el bow assembl i es at each change of di r ect i on.

2. 13. 3 Vent i ng

Pr ovi de t ank vent i ng as i ndi cat ed.

2. 13. 3. 1 Cent er Roof Vent

Pr ovi de open vent at t he cent er or at t he hi ghest el evat i on of t he r oof .

Open vent must have a st ai nl ess st eel weat her hood as i ndi cat ed and st ai nl ess st eel bi r d scr een as i ndi cat ed on t he dr awi ngs wi t h openi ngs wel ded i n pl ace. Weat her hood must be r emovabl e. I nsect scr eens ar e not al l owed.

2. 13. 4 Ci r cumf er ent i al St ai r way and Pl at f or ms

OSHA 29 CFR 1910. 25 St ai r ways. Pr ovi de bol t - on r emovabl e doubl e st r i nger c i r cumf er ent i al st ai r ways as i ndi cat ed. Hot - di p gal vani ze st ai r way i n accor dance wi t h ASTM A123/ A123M Gr ade 100. Al l bol t ed connect i ons must be gal vani zed pr i or t o er ect i on. Hot di p gal vani ze st ai r way and pl at f or m sect i ons af t er al l wel di ng i s compl et e. No wel di ng on t he st ai r way wi l l be per mi t t ed af t er gal vani z i ng. Col d spr ay- on gal vani z i ng i s not al l owed as a subst i t ut e f or hot di p gal vani z i ng or i t s r epai r . Al l c i r cumf er ent i al st ai r component s i ndi cat ed t o be hot di p gal vani zed shal l be pr i med and pai nt ed wi t h same t ank ext er i or epoxy coat i ng.

Pr ovi de st ai r way wi t h r epl aceabl e gal vani zed st ai r way st ep and pl at f or m t r ead gr at i ng. The st ai r way must be of bol t ed const r uct i on t o al l ow f or compl et e r emoval af t er const r uct i on t o avoi d i nt er f er ence wi t h coat i ng oper at i ons. St ai r way bol t i ng must be ASTM A325, hot di pped gal vani zed.

Al l mount i ng br acket s, used t o connect t he st ai r way t o t he t ank, must be wel ded t o t he t ank usi ng seal wel ded mount i ng pl at es and must be coat ed wi t h t he t ank. Pr ovi de one appr oach st ep on t he secondar y cont ai nment concr et e as i ndi cat ed. Pr ovi de shel l mount ed met al bar st ai r way st ep and pl at f or m t r ead gr at i ng wi t h non- sl i p nosi ngs. Suppor t t he st ai r way and pl at f or ms compl et el y on t he shel l of t he t ank wi t h bot t om- of - shel l - mount ed por t i on c l ear of and not st r uct ur al l y suppor t ed or connect ed t o t he gr ound or appr oach st eps. Pr ovi de r i se and r un of st ai r way st eps as i ndi cat ed, SECTI ON 33 56 21. 17 Page 12 adj ust i ng s l i ght l y t o sui t f i nal l ayout of t he t ank and i t s appur t enances, but wi t h r i se and r un consi st ent f r om t he gr ound l evel t o t he t op pl at f or m. Const r uct st ai r way ent i r el y of st eel .

Pr ovi de l andi ngs f or accessi ng t he hi gh l evel al ar m swi t ches, l evel cont r ol f l oat pi l ot chamber , and t ank r oof . Rai l i ngs must be cont i nuous ar ound t he pl at f or ms, except f or access openi ngs, and must be const r uct ed si mi l ar t o t he r oof per i met er guar dr ai l . At access openi ngs, any space wi der t han one i nch bet ween t he t ank and t he pl at f or m must be f l oor ed.

Ends of handr ai l s, guar dr ai l s, and post s must be seal ed by wel di ng.

Guar dr ai l s must be const r uct ed i n wel ded sect i ons and t hei r post s seal wel ded or bol t ed t o t he st r i nger s. Cont i nuousl y but t - wel d pl at f or m guar dr ai l t oeboar ds t o guar d r ai l post s. Do not f i el d wel d gal vani zed mat er i al s.

2. 13. 5 Manhol e Access Pl at f or ms

Pr ovi de pl at f or m f or accessi ng t he l ower shel l manhol e and ci r cumf er ent i al st ai r way as i ndi cat ed and i n accor dance wi t h Sect i on 05 50 13

MI SCELLANEOUS METAL FABRI CATI ONS.

2. 13. 6 Roof Per i met er Guar dr ai l

Const r uct i on of r oof per i met er guar dr ai l must be as- det ai l ed on t he dr awi ngs and i n accor dance wi t h OSHA. Fi ni shi ng of r oof per i met er guar dr ai l must be si mi l ar t o t he st ai r way. Do not f i el d wel d gal vani zed mat er i al s.

2. 13. 7 Wat er Dr aw- Of f Syst em

Pr ovi de a wat er dr aw- of f syst em compl et e wi t h al l syst em component s and cont r ol s and connect ed t o t he AST as i ndi cat ed. Syst em must r emove f uel f r om i t s associ at ed st or age t ank, separ at e t he f uel and wat er by gr avi t y, r et ur n t he f uel back t o t he st or age t ank, and di schar ge t he wat er . The syst em and i t s component s must meet t he r equi r ement s of t he speci f i cat i on her ei n. The syst em must i ncl ude, but i s not l i mi t ed t o, t he f ol l owi ng pi pi ng, f i t t i ngs, val ves, syst em component s, and cont r ol s:

a. Pr oduct Saver Tank: Pr ovi de a 300- gal l on pr oduct saver t ank wi t h t he t ank, pi pi ng and f i t t i ngs packaged and f abr i cat ed as a s i ngl e syst em.

Fabr i cat e f r om Type 304 st ai nl ess st eel wi t h t ank vol ume as i ndi cat ed. Pr ovi de t ank wi t h r emovabl e t op, one- i nch i nl et l i ne, one- i nch dr ai n l i ne, and ot her l i nes as i ndi cat ed, al l wi t h f ul l por t bal l val ves and cam- t ype connect i ons. Pr ovi de concr et e mount i ng pad and anchor t ank t o i t . Gr ound t o dedi cat ed gr oundi ng syst em.

b. Pr ovi de t he pr oduct saver t ank syst em wi t h t ank sump heat i ng syst em.

Syst em must be sel f - r egul at i ng heat t r aci ng sui t abl e f or use i n Cl ass I , Di v i s i on 1, Gr oup D hazar dous envi r onment s. Pr ovi de t her most at f or cont r ol l i ng heat t r aci ng t ur n on by t emper at ur e.

c. Pr oduct Saver Pump: Pump must be a c l ose coupl ed cent r i f ugal havi ng a capaci t y of 20 gpm at not l ess 60 f eet of head and a r equi r ed Net Posi t i ve Suct i on Head of not mor e t han 3 f eet . Pump mot or must be i n accor dance wi t h NEMA MG 1. Al l pump component s i n cont act wi t h f uel must be st ai nl ess st eel . The uni t must be UL l i s t ed and l abel ed f or use i n Cl ass I , Di v i s i on 2, Gr oup D hazar dous envi r onment s as def i ned by NFPA 70, wi t h a maxi mum t emper at ur e r at i ng of " T3" - 392 degr ees F.

The mot or must be non- over l oadi ng at ever y poi nt on t he pump cur ve.

SECTI ON 33 56 21. 17 Page 13

d. Pi pi ng, Val ves, Fi t t i ngs, and I nst r ument s: Pi pe, pi pe f i t t i ngs, f l anges, manual val ves, gasket s, and bol t i ng must be i n accor dance wi t h Sect i on 33 52 40 FUEL SYSTEMS PI PI NG ( NON- HYDRANT) . Mat er i al s of const r uct i on must be as descr i bed i n t hi s speci f i cat i on par agr aph MATERI ALS FOR SYSTEM COMPONENTS, PI PE, AND FI TTI NGS except as modi f i ed her ei n.

e. Cont r ol s: Pr ovi de a combi nat i on mot or st ar t er wi t h cont act or f or wat er dr aw- of f pump cont r ol s, i ndi cat or l i ght s, and ot her equi pment per det ai l on dr awi ngs. Ther e must al so be a power t i e- i n f or f i el d wi r i ng t o sump heat t r aci ng and t her most at .

f . El ect r i cal : Pr ovi de compl et el y pr ewi r ed wi t h s i ngl e poi nt of ser vi ce connect i on at hor sepower r at ed, 3 pol e br eaker . Pr ovi de sui t abl e f or Cl ass I , Di v i s i on 1, Gr oup D ser vi ce.

2. 13. 7. 1 Basi s of Desi gn of Wat er Dr aw- Of f Syst em

The syst em must be ar r anged i n t he same gener al conf i gur at i on as i ndi cat ed. However , t hese ar e not f abr i cat i on dr awi ngs and ar e f or basi s of desi gn onl y. The Cont r act or must be r esponsi bl e f or pr ovi di ng a compl et e and usabl e syst em.

2. 13. 7. 1. 1 Det ai l Dr awi ng

Submi t det ai l ed dr awi ngs showi ng t he Wat er Dr aw- Of f Syst em, i ncl udi ng t ypes, s i zes, l ocat i on, and i nst al l at i on det ai l s f or :

a. Pi pe hanger s and suppor t s.

b. Gr oundi ng.

c. Tank.

d. Pump.

e. Cont r ol s.

f . Val ves.

g. Pi pi ng.

2. 13. 8 Shel l Manhol es

Pr ovi de shel l manhol es, manhol e cover s wi t h f i l l er dr ums, and davi t s as i ndi cat ed. Hi nged cover s ar e not al l owed.

2. 13. 9 Scaf f ol d Cabl e Suppor t

Pr ovi de t wo scaf f ol d cabl e suppor t s on t he t ank r oof i n accor dance wi t h API St d 650. Locat e t he suppor t near t he cent er of t he t ank and i n a manner t hat suppor t ed cabl es wi l l have maxi mum r ange and f l exi bi l i t y of oper at i on wi t h mi ni mum i nt er f er ence wi t h ot her t ank f i t t i ngs.

2. 13. 10 Ant i sei ze Compound

Pr ovi de mar i ne gr ade ant i sei ze compound f or f ast ener s on t ank ext er i or f l anges and bol t ed connect i ons and cover s. On t ank i nt er i or f ast ener s, SECTI ON 33 56 21. 17 Page 14 use oi l onl y.

2. 13. 11 Channel Mount i ng

Pr ovi de seal wel ded channel mount i ng pads wi t h seal wel ded st ai nl ess st eel bol t i ng st uds f or mount i ng channel t o suppor t condui t , t ubi ng, and l evel al ar m t est / dr ai n pi pi ng. Rack t ubi ng, smal l pi pi ng, and condui t par al l el t o t he shel l as i ndi cat ed. Do not mount wi t hi n 7 f eet above st ai r way.

2. 13. 12 Anchor s

When anchor s ar e r equi r ed by API St d 650 pr ovi de wi t h anchor bol t chai r s conf or mi ng t o AI SI E 1 St eel Pl at e Engi neer i ng Dat a and as i ndi cat ed.

PART 3 EXECUTI ON

3. 1 SAFETY PRECAUTI ONS

API RP 2009 f or f i r e and expl osi on hazar d ar eas.

3. 2 API St d 653 I NSPECTI ON REPORTS

The API St d 653 i nspect or must i nspect t he compl et ed t ank i n accor dance wi t h API St d 653 and del i ver a f ul l r epor t t o t he Cont r act i ng Of f i cer .

The r epor t must i ncl ude a r ecor d of ul t r asoni c t hi ckness measur ement s ( UTMs) , excl usi ve of t he coat i ng, of each t ank bot t om pl at e, each bot t om shel l cour se pl at e at 5 r andom l ocat i ons per pl at e, t he shel l al ong t he ci r cumf er ent i al st ai r way at 5 l ocat i ons per shel l cour se. The r ecor d of UTMs must i ncl ude sket ches of t he t ank bot t om pl at e and shel l pl at e l ayout s. The l ocat i on on each pl at e, wher e each ul t r asoni c t hi ckness measur ement ( UTM) i s t aken, must be r ecor ded. Fi ve UTMs must be r ecor ded on each t ank bot t om pl at e and on each l owest shel l cour se pl at e. Fi ve UTMs must be r ecor ded f or each of t he shel l cour ses above t he l owest shel l cour se and must be t aken al ong t he ci r cumf er ent i al st ai r way. The r epor t must i ncl ude t he t ank dat apl at e i nf or mat i on and phot ogr aph of t he t ank dat a pl at e. Pr ovi de el ect r oni c copi es of t he t ank i nspect i on r epor t s t o Ser vi ce Headquar t er s or of f i c i al l y desi gnat ed al t er nat e, Ser vi ce Cont r ol Poi nt s, and DLA- Ener gy. The paper and el ect r oni c copi es of t he r epor t and UTMs must be pr ovi ded t o t he Cont r act i ng Of f i cer f or f i l i ng wi t h t he t ank' s " as- bui l t dr awi ngs. " Ref er t o Sect i on 01 45 00. 00 20 QUALI TY CONTROL f or API St d 653 i nspect or cer t i f i cat i on r equi r ement s.

3. 3 CONSTRUCTI ON

3. 3. 1 Accessi bi l i t y

I nst al l al l wor k so t hat par t s r equi r i ng per i odi c i nspect i on, oper at i on, mai nt enance, and r epai r ar e r eadi l y accessi bl e. I nst al l conceal ed val ves, expansi on j oi nt s, cont r ol s, damper s, and syst em component s r equi r i ng access i n l ocat i ons f r eel y accessi bl e t hr ough access door s.

3. 3. 2 Tank Er ect or Si t e Super i nt endent

Tank er ect or s i t e super i nt endent must be on si t e at al l t i mes dur i ng any wor k by t hat cr ew.

3. 3. 3 Tank

Pr ovi de t ank of wel ded const r uct i on and suppor t t ank on a concr et e r i ng

SECTI ON 33 56 21. 17 Page 15 wal l . On t he si de of t he t ank f ur t hest f r om t he sump, s l ope t he t ank bot t om down t o t he sump appr oxi mat el y 6 i nches f or each 10 f eet of t ank r adi us. But t wel d or l ap wel d bot t om pl at es wi t h t he out er pl at es on t op. Lap annul ar r i ng on t op of bot t om pl at es or but t wel d t o t he bot t om pl at es. Rei nf or ce openi ngs l ar ger t han 2 i nches i n di amet er t hr ough pl at i ng of t he t ank shel l and r oof . Pr ovi de st r uct ur al st i f f eni ng, consi st i ng of r i ngs, t hi cker pl at es, or ot her appr oved means, t o mai nt ai n r oundness when t he t ank i s subj ect ed t o wi nd or sei smi c l oads.

3. 3. 4 Roof Pl at e Seams

Tank r oof pl at e must be l ap wel ded wi t h t he pl at es c l oser t o t he cent er of t he t ank on t op. The under si de of al l r oof pl at es must be caul ked usi ng t he r oof j oi nt seal ant as speci f i ed i n Sect i on 09 97 13. 15.

3. 3. 4. 1 Pr ohi bi t i on of Pr ot ect i ve Coat i ngs on Sur f aces t o be Wel ded

Remove pr ot ect i ve coat i ngs on sur f aces t o be wel ded and on sur f aces wi t hi n one i nch f r om wel d pr epar at i on. " Wel d- t hr ough" i nor gani c z i nc coat i ngs and si mi l ar coat i ngs wi l l not be per mi t t ed.

3. 3. 5 Roof Suppor t s

When col umns ar e pr ovi ded i n t he t ank, pr ovi de col umn base pl at es and 1/ 2 i nch t hi ck bear i ng pl at es. Wel d t he col umns t o t he col umn base pl at es.

Cent er t he col umn base pl at es on t he bear i ng pl at es and wel d t he col umn base cl i p- gui des t o t he bear i ng pl at es. Do not wel d t he col umn base pl at es t o t hei r bear i ng pl at es. Cont i nuousl y seal wel d t he bear i ng pl at es t o t he t ank bot t om so as t o pr ovi de a seal agai nst t he ent r y of wat er or ot her l i qui ds i nt o t he space bet ween t he col umn bear i ng pl at es and t he t ank bot t om. Bear i ng pl at es must be l ar ger t han t he base pl at es by at l east 6 i nches i n ei t her di r ect i on. Pr ovi de seal - wel ded cap pl at es on al l col umns. Roof suppor t col umns must be of pi pe or r ound st r uct ur al t ubi ng.

3. 3. 6 Sur f ace Fi ni shi ng

Pr ovi de Cont r act i ng Of f i cer wi t h NACE vi sual compar at or as descr i bed i n NACE SP0178 Sect i on 5. Fi ni sh i nt er i or sur f aces bef or e hydr ot est i ng, i n accor dance wi t h Sect i on 5 of NACE SP0178 and accompanyi ng Vi sual Compar at or , t o t he condi t i on descr i bed and shown f or NACE Wel d Desi gnat i on " C" wel ds. Fi ni sh ext er i or sur f aces, i n accor dance wi t h Sect i on 5 of NACE SP0178 and accompanyi ng Vi sual Compar at or , t o t he condi t i on descr i bed and shown f or NACE Wel d Desi gnat i on " D" wel ds. Submi t acknowl edgement of sur f ace f i ni sh r equi r ement s. Remove al l wel d spl at t er , shar p cor ner s, edges and poi nt s f r om al l car bon st eel sur f aces bef or e coat i ng.

Cont r act or use of a t empor ar y door sheet openi ng f or access of mobi l e equi pment dur i ng i nt er i or coat i ng appl i cat i on i s accept abl e wi t h pr oper exami nat i on and t est i ng of wel d r epai r ar ea whi ch meet s t he r equi r ement of API St d 650.

3. 3. 7 Tank Bot t om To Foundat i on Seal

Al l anchor ed t anks ar e t o be gr out ed bef or e l oadi ng wi t h wat er or pr oduct and bef or e t i ght eni ng anchor bol t s. Pr epar e t he t op of t he f oundat i on f or shi mmi ng and gr out i ng by r emovi ng al l di r t , sand, and l oose mat er i al .

Pr ovi de one- i nch shi m on t op of f oundat i on at hi gh poi nt and devel op al l ot her shi m st acks t o mat ch t he el evat i on of t he shi m at t he hi gh poi nt of t he f oundat i on. Pl ace shi ms a mi ni mum of 1 1/ 2 i nches i nsi de t he per i met er of t he t ank bot t om and under t he t ank shel l . Do not r et emper

SECTI ON 33 56 21. 17 Page 16

( add wat er ) t o a st i f f eni ng gr out mi x. Pl ace gr out wi t hi n 30 mi nut es af t er mi xi ng wi t h wat er or di scar d t he mi x.

3. 3. 8 At t achment s

Al l ext er i or shel l and r oof at t achment s must be connect ed t o t he t ank usi ng cont i nuousl y wel ded mount i ng pl at es. Mount i ng pl at es must exceed t he si ze of t he at t achment by a mi ni mum of one i nch. Al l mount i ng pl at e cor ner s must have a 2 i nch r adi us. At t achment must be seal wel ded t o t he mount i ng pl at e wi t h st r uct ur al l y sound wel ds of suf f i c i ent s i ze t o suppor t t he i nt ended l oads.

3. 3. 9 Nozzl es

Al l shel l nozzl es must be f l anged t ype. Shel l nozzl es s i zes l ar ger t han 2 i nches must have a r ei nf or ci ng pl at e. Nozzl es f or pi pe connect i ons i nsi de t he t ank must be f l anged i nsi de near t he shel l . Rei nf or ci ng pl at es f or shel l nozzl es must be r ol l ed t o t he cur vat ur e of t he shel l .

3. 3. 10 Tank Bot t om Sump

Wel d sump t o t he under si de of t he t ank bot t om at t he l owest poi nt of t he t ank bot t om as i ndi cat ed.

3. 4 END CONNECTI ONS FOR SYSTEM COMPONENTS, VALVES, PI PE, AND FI TTI NGS

Al l val ve, syst em component s, pi pe and f i t t i ng connect i ons i ncl udi ng, but not l i mi t ed t o, pi pi ng f or t he Wat er Dr aw- Of f Syst em, dr ai ns, t her mal r el i ef s, HLV f l oat pi l ot chamber , and l evel swi t ches must be wel ded or f l anged except as i ndi cat ed. Pi pi ng and f i t t i ngs 2. 5 i nches and l ar ger must be but t wel ded. Pi pi ng and f i t t i ngs 2 i nches and smal l er may be but t wel ded or socket wel ded. Thr eaded connect i ons ar e not al l owed except wher e wel ded or f l anged connect i ons t o appur t enances ar e not avai l abl e,

e. g. , pr essur e gauges, f uel sampl e connect i ons, l evel swi t ch pr obes, HLV f l oat pi l ot chamber .

3. 5 FI ELD QUALI TY CONTROL

The Cont r act i ng Of f i cer wi l l conduct f i el d i nspect i ons and wi t ness f i el d t est s and t r i al oper at i ons speci f i ed i n t hi s sect i on. The Cont r act or must per f or m al l t r i al oper at i ons and f i el d t est s and pr ovi de al l l abor , equi pment and i nci dent al s r equi r ed f or t est i ng.

3. 5. 1 Tank Cal i br at i on Tabl e

Af t er i nst al l at i on of t he t ank i s compl et e, pr ovi de t wo cal i br at i on t abl es st amped by a Pr of essi onal Engi neer , one i n Engl i sh uni t s and one i n met r i c uni t s. Tabl es must be l ami nat ed. Bot h t abl es must show t he vol ume of t he f uel f or al l l i qui d l evel s i n t he t ank st ar t i ng at t he bot t om of t he sump and goi ng up t o t he l evel of t he over f l ow. The Engl i sh uni t cal i br at i on t abl e must show t he vol ume of f uel i n gal l ons and i n bar r el s of 42 gal l ons and t he l evel of t he f uel i n 1/ 16- i nch i ncr ement s. The met r i c t abl e must show t he vol ume of t he f uel i n l i t er s and i n m3 and t he l evel of t he f uel i n 2. 0 mm i ncr ement s. The t abl e must i ncl ude not es at t he bot t om i ndi cat i ng 42 gal l ons = 1 bar r el ; and one ki l ol i t er = one cubi c met er .

Vol ume cal cul at i ons must be i n t he smal l er uni t s. Lar ger uni t s may be obt ai ned by r oundi ng of f . The 0 i nch l evel must be t he l evel of t he bot t om of t he shel l . Level bel ow t he bot t om of t he shel l must be shown i n negat i ve uni t s st ar t i ng at t he bot t om of t he shel l . The l evel of t he

SECTI ON 33 56 21. 17 Page 17 bot t om of t he shel l , al ar m set poi nt s, hi gh l evel shut of f val ve act uat i on poi nt , and t he l evel of t he over f l ows must be i dent i f i ed on t he cal i br at i on t abl e ( st r appi ng char t ) . The t abl e must not i ncl ude t ank vol ume above t he l evel of t he over f l ows. Al so, pr ovi de El ect r oni c Cal i br at i on Tabl e compat i bl e wi t h t he El ect r oni c Aut omat i c Tank Gaugi ng Syst em. Cont act Cont r act i ng Of f i cer f or di r ect i on on r equi r ed f or mat .

3. 5. 1. 1 Tank Cal i br at i on Met hod

The t ank gaugi ng syst ems must be cal i br at ed i n accor dance wi t h t he API Manual of Pet r ol eum Measur ement St andar ds ( API MPMS) f or cr i t i cal measur ement usi ng met hods out l i ned i n one of t he f ol l owi ng chapt er s.

a. API MPMS 2. 2A, Measur ement and Cal i br at i on of Upr i ght Cyl i ndr i cal Tanks by t he Manual St r appi ng Met hod.

b. API MPMS 2. 2B, Cal i br at i on of Upr i ght Cyl i ndr i cal Tanks Usi ng t he Opt i cal Ref er ence Li ne Met hod.

c. API MPMS 2. 2C, Cal i br at i on of Upr i ght Cyl i ndr i cal Tanks Usi ng t he Opt i cal Tr i angul at i on Met hod.

d. API MPMS 2. 2D, Cal i br at i on of Upr i ght Cyl i ndr i cal Tanks Usi ng t he I nt er nal El ect r o- Opt i cal Di st ance Rangi ng Met hod.

3. 5. 2 Wel d I nspect i on

Per f or m i nspect i on of wel ds i n accor dance wi t h API St d 650. I nspect but t wel ds r equi r i ng compl et e penet r at i on and compl et e f usi on by t he r adi ogr aphi c met hod. I nspect r oof suppor t col umn wel ds bel ow desi gn l i qui d l evel by v i sual and dye penet r ant met hods. Submi t t he f ol l owi ng wel d i nspect i on r epor t s t o t he Cont r act i ng Of f i cer :

a. Vi sual exami nat i on of ver t i cal shel l - seam t ack wel ds, i f l ef t i n pl ace, i n but t wel ds.

b. Vi sual exami nat i on of i ni t i al pass of i nt er nal shel l - t o- bot t om wel d.

c. Vacuum box t est i ng of i nt er nal shel l - t o- bot t om i ni t i al wel d pass.

d. Vi sual exami nat i on of compl et ed i nt er nal and ext er nal shel l - t o- bot t om wel ds.

e. Radi ogr aphi c exami nat i on of shel l but t wel d.

( 1) Submi t r epor t s f or i nspect i on of wel ds and r adi ogr aphs t o t he Cont r act i ng Of f i cer .

f . Vi sual exami nat i on of shel l but t wel ds.

g. Vi sual exami nat i on of f i l l et wel ds.

h. Vi sual exami nat i on of t ank bot t om pl at es af t er wel di ng.

i . Vacuum box t est i ng of t ank bot t om f i l l et wel d.

j . Pneumat i c t est s of r ei nf or ci ng pl at es.

SECTI ON 33 56 21. 17 Page 18

3. 5. 3 Repor t s of Ot her Test s and Exami nat i ons

Submi t r epor t s of t he r esul t s of t he f ol l owi ng exami nat i ons and t est s r equi r ed by API St d 650 t o t he cont r act i ng of f i cer :

a. Hydr ost at i c t est i ng.

b. Shel l set t l ement measur ement s t aken bef or e, dur i ng, and af t er hydr ost at i c t est i ng.

c. I nt er nal bot t om el evat i on r eadi ngs t aken bef or e and af t er hydr ost at i c t est i ng.

d. Shel l Pl umbness.

e. Shel l Roundness.

f . Maxi mum l ocal devi at i ons, shel l .

3. 5. 4 Ti ght ness Test s

Per f or m t i ght ness t est s descr i bed under t hi s par agr aph i n accor dance wi t h API St d 650, as modi f i ed her ei n. Per f or m t he t est s af t er f i ni shi ng wel ds i n accor dance wi t h t he par agr aph SURFACE FI NI SHI NG, but pr i or t o bl ast c l eani ng and appl i cat i on of t he pr ot ect i ve coat i ng. Submi t t i ght ness t est r ecor ds t o t he Cont r act i ng Of f i cer .

3. 5. 4. 1 Penet r at i ng Oi l Test

I nspect t ank shel l - t o- bot t om, i nsi de cor ner wel ds usi ng t he penet r at i ng oi l t est pr i or t o any vacuum box t est i ng. Af t er t he i ni t i al i nsi de f i l l et wel d i s made, appl y No. 2 Di esel t o t he out si de of t he i nsi de cor ner wel d ( bef or e t he out si de wel d i s made) . Af t er 4 hour s, i nspect t he i nsi de f i l l et wel d f or oi l penet r at i on t hr ough def ect s. The Cont r act or must cor r ect any def ect s. Remove oi l compl et el y pr i or t o f i ni shi ng wel d j oi nt . Then, compl et e t he r emai nder of t he shel l - t o- bot t om wel d j oi nt .

3. 5. 4. 2 Vacuum Box Test of Tank Bot t om

Per f or m a vacuum box t est of t he t ank bot t om i mmedi at el y af t er i nst al l at i on and af t er compl et i on of t he penet r at i ng oi l t est and pr i or t o i nst al l i ng any col umns. Test seams i n bot t om of t ank and shel l - t o- bot t om j oi nt by appl y i ng a commer ci al soap f i l m and subj ect i ng t he seam t o a vacuum. Use a gl ass t op vacuum box wi t h hypal on or neopr ene seal i ng gasket . Appl y a commer ci al bubbl e f or mi ng sol ut i on t o t he wel d or ar ea t o be t est ed; posi t i on t he vacuum box over t he ar ea and sl owl y pul l a par t i al vacuum. Obser ve t he sol ut i on f i l m f or bubbl e f or mat i on bet ween 0- 2 psi di f f er ent i al pr essur e. Cont i nue t o open t he val ve unt i l a di f f er ent i al pr essur e of 5 psi or 11. 5 f eet of wat er or 10. 2 i nches of mer cur y i s achi eved and hol d f or at l east 20 seconds whi l e cont i nui ng t o obser ve t he sol ut i on f or bubbl es.

3. 5. 4. 3 Hydr ost at i c Test and Set t l ement

Fol l owi ng t he successf ul compl et i on of t he r adi ogr aphi c i nspect i on of t he t ank and pr i or t o i nt er nal coat i ng and connect i ng pr oduct / oper at i ng pi pi ng t o t he t ank, t he t ank shal l be subj ect ed t o a hydr ost at i c wat er f i l l t i ght ness t est . Shel l set t l ement must be measur ed bef or e, dur i ng, and af t er hydr ost at i c t est i ng i n accor dance wi t h API St d 650. Tank shal l be

SECTI ON 33 56 21. 17 Page 19 f i l l ed wi t h wat er t o t he hi gh- hi gh al ar m l i qui d l evel f or t he hydr ost at i c t est .

Pr i or t o f i l l i ng any t ank wi t h t est wat er , t he Cont r act or shal l have t he f ol l owi ng compl et ed:

a. A hydr ost at i c t est i ng schedul e showi ng t he pr ocedur e, sequence and est i mat ed dat es of f i l l i ng and t est i ng of t he t anks, submi t t ed t o, and appr oved by, t he Cont r act i ng Of f i cer .