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# US T Cleanu p Manua l Cleanu p Rule s fo rLeakin g Petroleu m US T System s OA R 340-122-020 5 throug h 340-122-036 0 an d Associate d Guidanc e Document s 

# -O ^ 

# DE Q Sfat e o f Orego n Departmen t o f Environmenta l Qualit y Lan d Qualit y Divisio n Undergroun d Tank s Progra m 81 1 S W Sixt h Ave . Portland , O

R97204 Phone:(800)742-787 8 Fax ; (503 ) 229-697 7 www.deq . state , or . u s

Originall y Publishe d - Decembe r

200 0 Editoria l Update s - Januar y 200 8 & Ma y 200 9 Mitc h Schee l 09-LQ-06 8

PRINTE D O N RECYCLE D PAPE RThi s pag e intentionall y lef t blank .Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storage Tan k Program

INTRODUCTIO N Thi s manua

l contain s guidanc e on usin g th e Department o f Environmenta

l Qualit y (DEQ , o

r Department) undergroun d storag e tan k

(UST ) cleanup rules . Thes e rules , whic h include Oregon Administrativ e Rul e (OAR ) 340

- 122-020 5 throug h 340-122-0360 , describ e th e action s you (th e responsibl e party ) must tak e if petroleumproduct s lea

k fro myour regulate d UST , anddefine th e procedure s and standard s fo r cleanin g u

p th e release d product . Thi s documen

t contains :

• Genera

l Informatio n o n th e US T progra mincludin g informatio n o

n reporting release s of

petroleim i product s from USTs , contactin g DE Q US T regiona l staff , permi t requirements , cos t

recovery , etc. ;

• US T Cleanup Rule s wit h revision s adopte d in November , 1998 , along wit h aflowchart , outlin e anda n explanatio n of

eac h o f th e rules ;

• US T Cleanup Guidanc e o n topic s such a s writin g reports , analytica l requirements , us e o f

institutiona

l controls , option s fo r handlin g soi l piles , etc. ; and

• Form s Use d fo

r US T Cleanup Project s includin g copie s ofth e releas e repor t form, decommissioning/change-in

servic e forms , soi l matri x checklis t an d scoresheet ; and

• Reference s and Addition ^ Guidanc e containin g alis t o f document s fromDEQ , EPA , an d othe r sources , includin g th e inteme t

addres s where eac h ca

n b e obtained , tha

t yo u ma y fm d usefu l fo r US T cleanu

p projects . Not e o n Heatin g Oi l Tanks : Thi s UST Cleanu p Manua l doe s not appl y t o undergroun d heatin g oi l tan k cleanup s excep t a s specifie d I n OA R Chapte r340 , Divisio n 177 . Th e Divisio n 177 mle s wer e update d I n Februar

y 200 0 t o Includ e provision s fo rvoluntar y decommissionin g o f undergroun d heatin g oi l tanks . I n 1999 , th e Orego n Legislature change d th e heatin g oi l tan k progra m significantl y b

y havin g contractors , rathe rtha n DEQ , certif y cleanup s an d decommisslonlngs . I f yo u have question s abou t heatin g oi l tanks , pleas e leave a messag e o n th e US T Progra m Helpline , 1-800-742-787 8 (tol l fre e I n Oregon) . Yo u ma y als o wis h t o refe rt o th e heatin g oi l tan k rule s an d guidanc e document s tha t ca n b e foun d o n th e UST Progra m we b sit e (se e addres s below) . Thi s manua

l wil l b e update da s ne

w guidanc e become s available . W e invit e you to visi

t ou r we b sit e frequently t o look fo r update s and othe

r guidanc e document s an

d forms relevant

t o th e US T Cleanu

p an d Complianc e Program . Ou r we b site addres s is : . http://www.deq.state.or.us/lq/tanks/ust/index.ht m

US T Cleanu p Manua l Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m

ACKNOWLEDGMENT S Thi s manua

l wa s writte n b

y atea mof DE Q staff

, includin g Michael Anderson , Rober t Hood , Hennin g Larsen , Lauri e McCulloch , Deann aMueller-Crispin , O . J . "Bud " Roman , Bruc e Scherzinger , Richar d Silverman , and Rober t Williams . An earlie r draf t wa s release dfo

r publi c comment , an

d man y other s confributed idea s an d helpe d to review thi s document . Suggestion s fo r

Improvement: Comment s an d suggestion s fo r improvemen

t o f thi s guidanc e documen

t ar e welcome . Pleas e sendyour

comments to : Departmen t o f Environmenta l Qualit y UST Progra m Polic

y Coordinato r 81 1 S W Sixt h Avenu e Portland , O R 9720 4

US T Cleanu p Manua l i i Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m



### CONTENT S INTRODUCTIO N I Acknowledgment s i i SECTIO N 1 : GENERA L INFORMATIO N 1 Sectio n 1.1 : Ho w t o Repor t a n Undergroun d Storag e Tan k PetroleumReleas e 1 Sectio n 1.2 : US T Progra

mOffice s 3 Sectio n 1.3 : Transitio n Polic y fo r Ongoin g US T Cleanup Projects.... . 5 Sectio n 1.4 : Permit

Requirement s fo

r US T Cleanup Site s 6 Sectio n 1.5 : Polic y fo

r Reus e o f Petroleu mContaminate d Soil 9 Sectio n 1.6 : US T Superviso r and Servic e Provider

Requirement s 1 0 Sectio n 1.7 : Cos t

Recover y fo r Departmenta

l Oversigh

t Wor k 1 1 SECTIO N 2 : UST CLEANU P RULE S 1 3 Sectio n 2.1 : Overvie w o f

US T Cleanup Rule s 1 3 Sectio n 2.2 : Rule s Flowchar t . - 1 4

. , Sectio n 2.3 : Outlin e o f

Rul e Section s 1 5 Sectio n 2.4 : Cleanup Rule s fo r Leakin g Petroleu mUS T System s 1 6 Sectio n 2.5 : Summar

y o f Eac h Rul e 4 2 SECTIO N 3 : UST CLEANU P GUIDANC E 5 6 Sectio n 3.1 : Writin g Cleanup Report s and Correctiv e Actio n Plan s 5 6 Sectio n 3.2 : Exampl e Report s an d Outline s : 6 9 Sectio n 3.3 : Analytica

l Requirement s 7 6 Sectio n 3.4 : Sit

e Control s 8 6 Sectio n 3.5 : Ho w t o Handl e Site s Wit h Multipl e Cleanup Option s 8 7 Sectio n 3.6 : Handlin g and Treatin g Petroleum-Contaminate d Soil 8 8 Sectio n 3.7 : Sampl e Calculation s fo r Ai r Emission s 9 1 Sectio n 3.8 : Answer s t o Common US T Cleanup Question s 9 3 

### SECTION4 : FORM S USE D FO R US T CLEANU P PROJECT S ,...9 6 Sectio n 4.1 : Petroleu mReleas e For m9 7 Sectio n 4.2 : Cos t

Recover y Agreement

10 0 Sectio n 4.3 : US T Decommissionin g Checklis t and Sit e Assessmen

t Repor t Repor t 10 2 Sectio n 4.4 : Soil Matri x Checklis t an d Scor e Shee t 11 0 SECTIO N 5 : REFERENCE S AN D ADDITIONA L GUIDANC E 11 2 Sectio n 5.1 : Reference s 11 2 Sectio n 5.2 : Additiona

l Guidanc e Document s 11 3

UST Cleanu p Manua l ii i Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

Thi s pag e intentionall y lef t blank .

US T Cleanu p Manua l i vMa y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Progra m SECTIO N 1 : GENERA L INFORMATIO N SECTIO N 1.1 : Ho w T

O REPOR T A N UNDERGROUN D STORAG E TAN KPETROLEU M RELEAS E OA R 340-122-022 0 require s th e responsibl e perso n t o repor t confirme d an d suspecte d release s fro m US T system s t o th e Departmen t withi n 2 4 hours . I n addition , OA R 340-160-0020(9 ) require s license d UST servic e provider s t o repor t a releas e t o th e Departmen t withi n 7 2 hour s i f th e responsibl e perso n doe s not . l.Ll : Wha t

i s arelease ? Ther e ar e tw o type s o f

pefroleu mreleases , "suspected " an d "confirmed. " A "Confirme d Release " (OA R340-122-0210(8) ) mean s tha t petroleu mcontamination ha s bee

n observed i

n soil or groundwate

r a s asheen , stain , o

r petroleumodor , o

r pefroleu mcontamination has bee

n detecte d i

n soil b y th e analytica

l metho dNWTPH-HCID , or detected i n groundwate

r b y an y appropriat

e analytica l method specified i

n OA R340-122

- 0218 . I n othe r words , you hav e actuall

y seen , smelled , o

r measure d th e contamination usin g som e acceptabl e method . Thes e observation s ar

e usually mad

e i n an d around th e tank

pi t s o tha t ther e i s no doub

t tha t th e releas e cam

e fromyou r tan k system . A "SuspectedRelease " (OA R340-122-0210(31) ) generall y mean s findin g evidenc e a

t your site o r i n th e surroundin g are a(e.g. , th e presenc e of

free produc t

o r vapor s in soils , basements , sewe r an d utilit y lines , an d nearb y surfac e water

) tha t indicate s tha

t your tan k ver y likely ha s aleak . Other

suc h evidenc e could include unusua l tan k systemoperatin g condition s (e.g. , th e errati c behavior of produc t dispensin g equipment , th e sudden los s of produc t fromth e US T system , or a n unexplaine d presenc e o f

wate r in th e tank) ; an d monitorin g result s fromareleas e detectio n metho d tha t indicate s areleas e ma

y hav e occurred . L1.2 : Ho w t o Repor t

aReleas e Whe n areleas e i s suspecte d or

confirmed , you mus t

repor t i t withi n 2 4 hours ' of

discovery . Telephone th e appropriat e DEQ regiona

l offic e (se e Sectio n 1.2 : US T Progra mOffices ) t o contac t

aUS T Cleanu

p projec t manage r o r leav e a voic e mail messag e durin g regula r busines s hours . T o repor

t a n emergency situatio n o

r t o repor t areleas e whe

n DE Q office s are closed , cal l th e Oregon Emergenc y Respons e System(OERS ) a t 1 -800-452-031 1 (in state) . B e prepared t o provide th e followin g type s o f informatio n t o DE Q o r

OERS : Facilit y name , address , and . I f th e tan k ha s a n US T pennit , th e US

T facilit y Identificatio n numbe r• Name , address , an d phon e numbe rofth e responsibl e person , a contac t person , an d th e perso n wh o I s reportin g th e releas e • Dat e th e releas e wa s discovere d • Ho w releas e wa s discovere d o rconflnne d • Wha t cause d th e releas e (leak , overfill , spill ) • Dat

e th e releas e was stoppe d • Wha t typ e o f produc

t was release d • Th e amoun t o f produc t release d • Wha t emergenc

y respons e measure s wer e taken , i f an y • Wha

t I s th e environmenta l Impac t (soi l contamination , groundwate rcontamination , surfac e wate rcontamination , vapor s I n buildings ) • I s ther

e any off-sit e migratio n • Date cleanu p wa s Initiate d • Wha t I s th e cunen t statu s o f cleanu p activities , an d • Ifan y contaminate d material s hav e bee n remove d fro m th e site , wher e they hav

e bee n disposed . Yo u ma y als o repor

t areleas e b y completin

g aDE Q PetroleumReleas e For man d faxin g the informatio

n to the appropriat

e regiona l office . A copy ofth e form

, whic h yo u ca n photocopy , fill out , an

d fa x t o the appropriat

e DE Q regiona l office , ca n b e foun d i n Section 4.1 : Pefroleu

mReleas e Form^ . B e sur

e to complet

e al l section s tha

t appl y t o th e release .

' Fo r heatin g oil tank s yo u ar e required t

o repor t release s withi

n 7 2 hours . Se e OA R340-177-0055 . ^ Chec k fo r update d version s o

f thi s releas e for

mo n th e US T website : http : .-'.'w

w w . deq. slate , or. us.'lq/tanks''ust/index . ht m US T Cleanu p Manua l 1 Ma y 200 9Orego n Departmen t of Environmenta l Quality - Undergroun d Storag e tan k Progra m NOTE : The mos t

current version s o f

US T an d US T cleanu

p forms , includin g interactiv e forms tha t ca n b e filled ou

t righ t o n th e screen an

d the n printed , ca

n b e foun d o n DEO' s Websit

e at : http:.''/\vww.deq.state.or.us/pubs./fon-ns.htm . DEO recommend s vou eithe r us e th e interactiv e forms o r downloa d th e mos t current version s t o use . L1.3 : Obtainin g aProjec t Lo g Numbe r

(als o know n a s aPetroleu mReleas e Number ) Whethe r you fa x areleas e repor

t t o DE Q o r repor t th e releas e b

y leavin g avoic e mail message , th e releas e ha s no t been officiall

y reporte d unti l DE Q assign s aLo g Numbe r t o th e project . Generally thi s numbe r will b e faxe

d back o r you r phone cal l wil l b e retume dth e sam e day . However , if

yo u d o no t receiv e thi s confirmation , pleas e check back wit h th e regiona

l offic e to confir

mtha t th e fa x fransmission wen

t throug h or

th e voice-mai l messag e wa s received . DE Q ma y require additiona

l informatio n dependin g on ho w sever e th e releas e is . Note : Sinc e th e Cleanu

p Manua l wa s publishe d in Decembe r 2000 , DE Q ha s develope d a n on-lin e releas e reportin g protoco l fo

r US T an dHO T Servic e Providers . T o lea mmor e about th e on-lin e releas e reportin g protoco l g o to : http://\\^vw.deq.state.or.us/lq/tanks/report.ht m LL4 : Wha t

Happen s Afte r

aReleas e i s Reported ? Afte r areleas e i s reported , DE Q begin s certai n adminisfrativ e actions , such a s enterin g infonnatio n int o ou r statewide database . W

e the n send you aletter

wit h informatio n about

applicabl e regulations , repor t requirement s an

d du e dates , an dcos t recovery . Thi s letter

wil l als o infor

myo u tha t you hav e a

n opportunit

y t o reques t

expedite d revie w by DEQ . Fo r mor e information , refe

r t o Sectio n 1.7 : Cos t

Recover y fo r Departmenta

l Oversigh t Work .

US T Cleanu p Manua l 2 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 1.2 : US

T PROGRA M OFFICE S Th e followin g ma

p show s th e thre e DE Q regions . Th e location s of regiona l office s tha

t includ e US T progra

mstaf f ar e marke dwit

h circles . A tabl e containin g th e address , phon e number , and fa x numbe r fo r eac h of thes e office s ca

n b e foun don th e next

page . A lis t

ofth e countie s covere d b

y eac h regiona

l offic e i s als o provide d fo

r you r reference .

NORTHWES T REGIO N

WESTER N REGIO N MALHEU R

EASTER N REGION

UST Cleanu p Manua l Ma y 200 9Orego n Departmen t of Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m

REGIO N RegionalOffic e Address/Phone/Fa x Countie s Covere d NORTHWES

T REGIO N Portlan d 202 0 S W Fourth , Suit e 40 0 Portland , O R 9720 1 Phone : (503)229-5263 * Fax : (503)229-694 5 Clackamas , Clatsop , Columbia , Multnomah , Tillamook , Washingto n

EASTER N REGIO N Th e Dalle s 40 0 E . Sceni c Drive , Bldg . 2 Suit e 30 7 Th e Dalles , O R 9705 8 Phone : (541 ) 298-725 5 ext . 0* * Fax : (541)298-733 0 Baker , Crook , Deschutes , Harney , Hoo d River , Gilliam , Grant , Jefferson , Klamath , Lake , Malheur , Morrow , Sherman , Umatilla , Union , Wasco , Wallowa , Wheele r WESTER N REGIO N Sale m

Eugen e

Coo s Ba y 75 0 Fron t Street , NE , Suit e 12 0 Salem , O R 9730 1 Phone : (503 ) 378-824 0 ext . 0* * Fax : (503)373-794 4 16 5 Eas t 7*

^ Avenu e Suit e 10 0 Eugene , O R 9740 1 Phone : (541 ) 686-783 8 ext . 0 " Fax : (541)686-755 1 38 1 N . Secon d Stree t Coo s Bay , O R 979742 0 Phone : (541 ) 269-272 1 ext . 3 1 Fax : (541)269-798 4 Benton , Lincoln , Linn , Marion , Polk , Yamhil l

Lan e

Coos , Curry , Douglas , Jackson , Josephin e Thi s phon e numbe r

wil l connec t

yo u with areceptionist . As k t o spea k wit h th e US T Dut y Officer . NOTE : Th e informatio n i n thi s tabl e wa s update di n Ma y 2009 .

UST Cleanu p Manua l Ma y 200 9Orego n Departmen t o f Environmenta l Quality -Undergroun d Storag e Tan k Progra m SECTIO N 1.3 : TRANSITIO N POLIC Y FO R ONGOIN G UST CLEANU P PROJECT S The following i s acopy ofth e Undergroun d Storag e Tan k Progra mPolic y Statemen

t signed b y Michael H . Kortenhof

, US T Progra

mManager , on Marc h 3 , 1999 . Transitio n int o th e 11/2/9 8 Amendment s t o th e US T Cleanu p Rule s

OA R340-122-020 5 throug h 340-122-036 0 I . Backgroun d O n Octobe r 30,1998 , th e Environmenta l Qualit y Commissio n approve d revision s to th e Undergroun d Storag e Tan k Cleanup Rule s (OA

R340-122-020 5 throug h 340-122-0360) . Th e revision s became effectiv e o n Novembe

r 2,1998 . Sinc e ther e are man y site s i n variou s stage s o f

cleanup under

th e previou s versio n ofth e rule s (10/1/92) , th e US T progra mha s develope dth e followin g polic y t o ensure afai r and consistent

approach fo

r handlin g US T cleanu

p site s durin g th e transitio n t o th e revise d rules . II . Polic y Statement s 1 . Site s reporte d to th e Department on o r afte r 11/2/9 8 mus t

mee t al l applicabl e requirement s ofth e revise d US T Cleanu p Rules . 2 . Site s reporte d to th e Department prio r to 11/2/9 8 mus t

take on e ofth e following action s base d o n wher e they wer e in th e cleanup proces s a

t th e time th e rul e revision s went into effect : a . Site s whic h wer

e operatin g under

aDepartment-approve d cleanu p pla n prior to 11/2/9 8 ma

y continu e unde

r th e approve d pla

n includin g eventua

l closur e base d on cleanup level s an d requirement s i

n effec t a t th e tim e the pla n wa s approved . b . Site s which hav e no t

complete d a

n investigation , o

r submitte d acleanu

p proposa l to th e Departmen

t prior to 11/2/9 8 mus t

carr y out al l futur e action s under

th e revise d cleanup rules . c . Site s whic h submitte dproposal s fo r cleanup to th e Department prio r to 11/2/98 , but

whic h wer

e no t ye t approve d a

t tha t time , wil l b e considere d fo r completio n under

th e old rules . Th e decisio n t o complet e sit e wor k unde r th e oldrule s wil l b e base d on th e completenes s ofth e reporte d investigation , an d th e apparen

t adequacy of th e propose dremedy . d . Site s which woul db e allowe d t o complet e wor k and seek closur e unde r th e ol d rule s ma y op t t o see k closur e unde r th e revise drules . Such closure s ma y no t b e base d on acombinatio n o f ol d an d revise d rule s unles s pre approve d b

y th e Department . 3 . Notwithstandin g Polic y Statemen t 2 , th e Department

ma y apply th e requirement s ofth e revise d rule s to site s reporte dprior

t o 11/2/9 8 i f

necessar y to adequately protec t

publi c health , safety , an

d welfar e an d th e environment .

USTCIeanu p Manua l 5 Ma y 200 9Orego n Departmen t of Environmenta l Quality - Undergroun d Storag e Tan k Progra m

SECTIO N 1.4 : PERMI T REQUIREMENT S FO R US T CLEANU P SITE S Dependin g on th e site-specifi c condition s of your US T cleanup project , yo

u ma y nee d to obtai n u

p t o thre e additiona

l permit s to carr

y out th e cleanu

p wor k a t you r site :

• Air Qualit y Discharg e Permit ; Wate r Qualit y Permit ; and/or • Soli d Wast

e Lette r Authorizatio n Permit . 1.4.1 : Ai r Qualit y Discharg e Permi t Yo u mus t giv e prior notic e to th e DE Q if

you r pro]pose d metho do f

cleanu p will produc e emission s to air (suc h a s air sfrippers o r vapor extractio n systems) . A

n air qualit y permit ma y b e require d i f

yo u expec t to discharg e mor

e tha n 1 0 ton s (20,00 0 pounds ) of

volatil e organi c compound s (VOCs ) in an y given calendar-yea

r (Januar y 1 - Decembe

r 31) . Emission s o f

1 0 tons/yea

r o r mor e ofan y individua

l hazardou s ai

r pollutan t (HAP)" , o

r 2 5 tons/yea

r o r mor e tota l HAP s als o requir

e a n air qualit y permit . Remediatio n system s wit h emissio n rate s tha

t ar e belo w thes e threshold s bu t caus e nuisanc e condition s ma y als o b e require d to get

apermit . Note : I n Lan e County , Ai rQualit y Permit s ar e Issue d b y th e Lan e Regloria l Ai rPollutio n Authorit y (LRAPA) . Fo r mor e information , pleas e contac t LRAP A a t 541-726-2514 . Mos t US T remediatio n system s d o no t approach th e 10-ton limit . However , man y of thes e system s do hav e th e potentia l of causin g nuisanc e condition s or impactin g th e heeilt

h an d safet y of individual s workin g o

r residin g in th e vicinit y of th e site . T o addres s thi s conce mth e DE Q ask s tha t you evaluat

e th e huma

n healt h risk s resultin g from exposur e t o hazardou s ai

r pollutant s discharge d fromyour remediatio n system . I

f th e calculate d healt

h risk s ar e significant , yo u wil l b e aske dto freat o r otherwis e confro

l th e impact s o

f th e discharge . A sampl e calculatio n i s provide d fo

r you r referenc e i

n Sectio n 3.7 : Sampl e Calculation s fo r Air Emissions . Fo

r mor e information , pleas e contac t th e US T projec t

manage r assigne d t o your

site . 1.4.2 : Wate r

Qualit y Permi t Som e cleanu p project s ma

y requir e aDEQ wate

r qualit y permi t t o discharg e wate

r froma n excavatio n ort o discharg e treate d water

from agroundwate

r treatment system . Wate r Qualit y 1500- A an

d 1500- B permit s relate t o th e discharg e o f petroleum-contaminate d wate r tha t ha s been freated t o limit s specifiedi n thos e permits . Ho w and wher e th e contaminate d wate

r i s discharged—t o surfac e water s o r applie d t o th e lan

d —will determine which permi t i s required . Th e 1500- A Permi t

i s aGeneral-Nationa

l Pollutan t Discharg e Elimination Syste m(NPDES ) Wast

e Discharg e Permit , which i s afedera

l permit issued b y th e Departmen

t o f Environmenta

l Quality . Thi s permit

i s require d an

y tim e contaminate dgroundwate

r o r surfac e wate

r need s t o b e discharge d an

d ha s the potentia

l of reachin g an

y surfac e wate

r (e.g., , streams , stor

msewers , ditches , intermittent streams) . Th e condition s o f th e permi t

canno t b e modified . A minimu mo f 10: 1 dilutio n (sfreamfio

w versu s discharg e flow) mus t b e maintaine d i

n th e sfrea mreceivin g you

r site' s pettoleum-contaminate dwater .

^ Hazardou s ai r

pollutants (HAPs), als o know n a s ai r toxics , ar e those air pollutants know

n o r suspecte d t o cause seriou s healt h effect s includin g cancer . US T Cleanu p Manua l 6 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Progra m Note : Eve n i f yo u ge t a NPDE S permi t fro m th e Department , yo u stil l have t o obtai n permissio n fro m th e loca l jurisdictio n before yo u ca n discharg e int o a stom i sewer . Yo u shoul d documen t thi s approva l i n you rrepor t b y Includin g th e nam e o f th e authorizin g agency , th e contac t person' s nam e an d phon e number , an d th e dat e o f approval . I f approva l wa s give n i n a letter , pleas e Includ e a cop y ofth e letter . Th e 1500- B Permi t

i s aGeneral-Water

Pollutio n Contro l Facilitie s Permit , which i s astat e permit als o issue d b

y DEQ . Th e 1500- B permi t

govern s treate d contaminate d wate r tha t i s applie d on land . Although th e permi t doe s hav e higher discharg e limit s than th e 1500-A , i t prohibit s othe

r conditions , such a s surfac e run-of f an d overloadin g th e land wit h nutrient s an

dorganics . A 1500- B Permi t

mus t als o b e obtaine d when conductin g bioremediatio n activitie s a t apefroleu

mhydrocarbo n cleanup site . Bioremediatio n activitie s covere d by th e permi t include i n sit u treatment

of contaminate d soi l and groundwater . One ofth e primar y condition s ofth e permi t

i s tha t thes e activitie s shall no t

caus e advers e impact s t o groundwate

r beyon d th e projec t

area . A n applicatio n fo

r thi s typ e of

permi t mus t include aBioremediatio n Managemen

t Pla n a s describe d in Schedul e C ofth e genera l permit . All imderground injection well s use d i n th e bioremediatio n projec t

mus t b e registere d wit

h th e Department . Note : A wate rquality permi t fro m DE Q i s not require d fo rcontaminate d wate rtha t i s othenwls e manage d throug h a publi c treatmen t syste m o rothe rtreatmen t facilit y authorize d b y DEQ . However , vo u mus t hav e prio rpermissio n fro m tha t municipa l authority . Yo u shoul d documen t thi s approva l I n you rrepor t b y includin g th e nam e o f th e authorizin g facility , th e contac t person' s nam e an d phon e number , an d th e dat e o f approval . I f approva l wa s give n I n a letter , pleas e includ e a cop y o f th e letter . Yo u d o not nee d a permi t t o discharg e clea n (i.e. , non-treate d an d non-contaminated ) wate rmeetin g th e turbidit y standards . In an y discharg e situation , whether apermi t i s require d o

r not , th e violatio n ofan y local , stat e o r federa l rule s and regulation s i s prohibited . I f apermi t i s required , you mus t

complet e a n applicatio n an

d pa y applicabl e fees . If

yo u hav e an y question s o

r nee d copie s ofth e permi t

application , pleas e contac t your regiona l DE Q office and as k

fo r th e Wate r Qualit y Permit Coordinator . Informatio n about Wate r Qualit y permit s ca

n als o b e foun

d o n th e DE Q websit

e at : http://www . deq.state , or . us/wgAvapermit/permits . htm 1.4.3 : Soli dWast e Lette r

Authorizatio n Permi t Yo u ma y needaSolidWast

e Lette r Authorizatio n permit

(SWLA) if

your proposa l to handl e pefroleum-contaminate d soil s (PCS ) include s "treatment " or i f remove d soil s will remain on your sit e fo r mor e tha n 3 0 days . I f you remov e PC S durin g a

n investigatio n or

cleanup of

petroleumcontaminatio n froma n underground storag e tank , you mus t either : • Dispos e o f

thi s materia

l a t a n approve d soli d wast

e treatment

o r disposa l facility ; o

r • Propos e to freat

and re-us e th e soi l under

a n SWLA . "Treatment " include s on-sit e o r off-sit e soi l aeration , bioremediation , or

therma l freatment

wit h amobil e unit . Yo u hav e 3 0 day s to mak

e thi s decision : vou mus t

ge t aSWL A if remove d soil s wil

l remain o n vou r sit e fo r mor e tha n 3 0 days . , Note : Yo u canno t us e a SWL A t o trea t o rdispos e o

f soil s contaminate d wit h non-petroleu m compound s o rwhic h are otherwis e classifie d a s "hazardou s waste. "

US T Cleanu p Manual 7 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m If you tak e th e PC S to a

n approve d freatment

o r disposa l facility , you don' t

need apermi t

fromDEQ . However , if

yo u intendto trea

t an dre-us e th e PC S eithe r

on - o r off-site , yo

u mus t appl y fo r aSWL A befor e beginnin g treatment . The SWL A i s asix-mont

h letter permi t wit h apotentia

l one-tim e six-mont h extension . T

o get a n extensio n o f

aSWLA , you wil l nee d to demonstrat e t o DE Q tha

t your treatment metho d i s effectiv e and tha t you wil l reach th e remediatio n goa l withi n th e secon

dsix-mont

h period . T o obtai n aSWLA , yo u mus t als o ge t approva l fro myou r loca l land-us e authorit

y ( acit y o r count y plannin g department

) t o us e th e propert

y fo r thi s purpose . While you ca n typicall y ge

t land-us e approva

l fo r on-sit e treatment wit h asimpl e phone call , off-sit e freatment

wil l requir e aLan d Us e Compatibilit

y Statemen

t (LUCS ) signe d b

y you r loca l authority . I

n residentia

l o r other restricte d us e areas , you

r loca l land-us e contac t

ma y requir e aforma l review - even fo r on-site treatment

- by askin g tha

t yo u submi

t areques t fo r aLUC S befor

e lan d us e i s approve d or

denied . You r SWL A applicatio n mus t

include : • A Soil Treatmen

t Pla n statin g ho w yo u will effectivel y trea t th e PCS , an

d demonsfrat

e treatmen t progres s an

d complianc e wit

h cleanu p requfrements . It

mus t include ho w yo u intend t o manag e th e PC S s o tha t yo u d o not creat e publi c safet

y concems , environmenta

l hazards , or

nuisanc e condition s (suc h a s wate r ran-on/run-off, odor s o r dust) . • SignedPropert

y Owne r Statement s fromowner s ofth e propertie s wher e treatment

will occur , an

d wher e th e treate dsoi l wil l b e reused . Th e statement s documen t tha t th e owner s understan d th e restriction s tha t appl y to thes e activities . • A $50 0 fe

e t o DE Q or

asigne d cos t

recover y agreement . (Fo r

additiona l information o

n fees , pleas e see Sectio n 1.7 : Cos t

Recover y fo r Departmenta

l Oversigh t Work. )

• A LUC S i

f off-sit e treatment

i s propose d (se e above) . The SWL A ha s specifi

c permi t condition s tha

t mus t b e me t throughou t th e freatment

period , includin

g quarterl y samplin g an d reporting . It

doe s no t exempt yo u fromcomplying wit

h an y state , federal , o

r loca l rule s o r regulations . DE Q ma

y rescin dauthorizatio n fo

r treatment a t an y time if th e soil i s not

bein g managed properly . I f you hav e an

y question s o

r nee daSWL

A application , contac t

your regiona l DE Q office and ask

fo r a n US T Cleanu

p projec t manager .

UST Cleanu p Manua l 8 Ma y 200 9Orego n Departmen t of Environmenta l Quality - Undergroun d Storag e Tan k Progra m

SECTIO N 1.5 : POLIC Y FO R REUS E O F PETROLEU M CONTAMINATE D SOI L Thi s i s a cop y o f Environmenta l Cleanu p Divisio n Polic y No . 550 , whic h wa s approve d fo rus e i n th e US T Cleanu p Progra m o n Septembe r9 , 1992 . A . BACKGROUN D Man y leakin g undergroun d storag e tan k site s produc e significant

volume s o f

petroleumcontaminate d soil s (PCS) . Frequentl y th e owner s an

doperator s o f

thes e site s wis h t o freat

an d reus e th e PC S rathe

r tha n dispos e ofth e soil s in landfills . I n order

to protec t huma n health , welfare , an

d th e environment , i t

i s necessar

y fo r DEQ t o establis h aforma

l polic y recommendin g standard s fo r treatment

and reus e o f

PCS . Th e purpos e o f

th e policy i s to defin

e th e reconimende dfreatment

standard s whic h shoul d b e me t in orde r t o reus e PCS . B . APPLICABILIT Y Thi s polic y applie s t o treatment and reus e o f

soil s contaminate d by release s o f petroleumproduct s only . C . POLIC Y STATEMEN T i ' 1 . Soil s whic h wil l b e use d a s backfill in th e excavatio n fromwhic h they wer e removed^ar

e require dt o b e treate d t o th e matri x cleanu p standar d applicabl e t o th e site o f

origi n i n accordanc e wit

h OA R340-122-0335. * 2 . Soil s whic h wil l b e use doff-sit e shoul d meet

th e appropriat

e Level 1 matri x cleanu

p standar d fo r th e substanc e released ; i f

th e soil s are use d off-site , th e propert y ovme r receivin g th e treate d soil should acknowledg e i n writin g tha

t th e soil s have bee n placed in accordanc e wit h thi s policy ; thi s acknowledgmen t should als o indicat

e that th e owne r ofth e propert

y acceptin g th e contaminate d soi l understand s th e nature an d origin ofth e soils . 3 . In al l cases , reus e ofth e treate d PC S shoul d b e suc h tha t soil s ar e place d above th e seasona

l hig h groundwate

r leve l an dar

e isolate d fromhuma

n contac t o r possibl e exposure . Treate d PC S shoul d no t b e placed i

n wetland s o

r withi n th e 100-yea

r floodplain. 4 . I n al l cases , dispositio n of soil s (includin g reus e on-site o r off-site ) mus t

b e reporte d to DEQ i

n accordanc e wit h OA R340-122-0360 . 5 . In accordanc e wit

h OA R340-122-025 0 (correctiv e actio n pla n requirements) , DEQ will conside r altemate cleanup standard s fo

r reus e o f PC S on acas e b y cas e basis ; unde r n o circumstance s wil l DE Q approv e o f cleanup standard s whic h d o no t

adequatel y protec t

huma n health , safety , welfare , an d th e environment . Althoug h thes e freatment

standard s an

d reus e contro l measure s ar e considere d adequat

e t o protec t huma n health , safety , welfar

e andth e environment , th e Department strongl y support s and encourage s efforts to attain th e lowes t practicabl e freatment

level s an d thereb y reduc e th e impac t t o th e environment . DISCLAIME R Thi s polic y statement

i s intende d solely a s guidanc e fo r employee s ofth e Departmen t ofEnvironmenta

l Quality . It doe s no t constitute rulemakin g b

y th e Envfronmenta

l Qualit y Commission an

d ma y not b e relied upo

n t o creat e aright o r benefit , substantiv e o

r procedural , enforceabl e a

t la w o r in equity , by an

y person . DE Q ma

y tak e action a t varianc e wit h thi s polic y statement .

• ^ Fo r specifi c rule requirements , pleas e refe r t o Sectio n 2.4 : Cleanu

p Rule s fo r Leakin g Petroleu mUS T Systems . US T Cleanu p Manua l 9 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m SECTIO N 1.6 : UST SUPERVISO R AN D SERVIC E PROVIDE R REQUIREMENT S The following i s alis t

of th e type s o f

license s require d effective March 15 , 200 0 fo r companie s an

d individual s workin g on undergroun d storag e tank s i n Oregon . Th e mle s liste d fo r eac h licens e (fo

r example , "OA

RChapte r 340 , Divisio n 163" ) pertai n to th e mle s tha t describ e th e servic e provide r an d supervisor

requirements , no t

th e cleanu

p regulation s discusse d i

n thi s document . T o obtai n copie s ofth e mle s mentione d below , pleas e refe r to Sectio n 5.2 : Additiona l Guidanc e Documents . SERVIC E PROVIDER S TYP E O F LICENS E Heatin g Oi l Tan k

Servic e Provide rLicens e

UST Servic e Provide rLicens e

UST Soi l Matri x Cleanu p Servic e Provide rLicens e ACTIVITIE S COVERED , APPLICABL E RULE S AN D FEE S Heatin g oiltan k

service s - sit e assessment , cleanup , decommissionin g OA R Chapte r340 , Divisio n 16 3 $75 0 fee , 1 2 month s Regulate d tan k

service s - decommissioning , installation / retrofit , tightnes s testing , cathodi c protectio n (compan y designate s whic h activitie s the y perforin ) OA R Chapte r340 , Divisio n 16 0 $30 0 fee , 1 2 month s Regulate d petroleu m tan k cleanup s - Thi s licens e n o longe r cover s heatin g oi l cleanup s a s o f Marc h 15 , 200 0 OA R Chapte r340 , Divisio n 162 $30 0 fee , 1 2 month s Each licens e i s separat

e an d cover s differen

t services . Ther

e ar e certai n regulation s tha

t appl y only , t o th e specifi c licens e category . Dependin g o n th e typ e o f

service s acompan

y provides , i t

ma y nee d one , two , o

r thre e separat

e servic e provider

licenses . Companie s ar

e responsibl e fo

r obtainm g each licens e require d fo

r th e wor k to b e performed . SUPERVISOR S US T Supervisor s mus t

hav e differen

t type s of license s dependin g on th e typ e o f on-sit e wor k the y ar e responsibl e for . A specific exa

madministere d b

y Intemationa

l Cod e Council (g o t

o http:./.Avvyw.iccsafe.org/certification/ust-ast ) must b e taken and passe d fo

r each licens e category . Th e US T Progra missue s thes e licenses. ' TYP E O F LICENS E Regulate d Tan k

- Installatio n an d Retrofi t Regulate d Tan k

- Decommissionin g Regulate d Tan k

- Tightnes s Testin g Regulate d Tan k

- Cathodi c Protectio n Regulate d Tan k

- Soi l Matri x Cleanu p Heatin g Oi i Tan k

Service s APPLICABL E RULE S AN D FEE S OA R Chapte r340 , Divisio n 160 , $15 0 fee , 2 4 mo . OA R Chapte r340 , Divisio n 160 , $15 0 fee , 2 4 mo . OA R Chapte r340 , Divisio n 160 , $15 0 fee , 2 4 mo . OA R Chapte r340 , Divisio n 160 , $15 0 fee , 2 4 mo . OA R Chapte r340 , Divisio n 162 , $15 0 fee , 2 4 mo . OA R Chapte r340 , Divisio n 163 , $15 0 fee , 2 4 mo .

' Fo r mor e informatio n o n US T Progra mlicensing , contac t th e progra moffic e a t

503-229-6652 , o r

leav e amessag e o n th e US T Helplin e a t

1-800

- 742

- 787 8 (toll-fre e i n Oregon ) an d reques t acop y ofth e lates t

IC C UST/AS T Examinatio n Information . US T Cleanu p Manua l 1 0 Ma y 200 9Orego n Departmen t o f Envfronmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 1.7 : COS T RECOVER Y FO R DEPARTMENTA L OVERSIGH T WOR K 1.7.1 : Wh o pay s an d why ? Owner s an

doperator s of

facilitie s or

propert y contaminate d by hazardou s substance s ar e responsible , unde

r Orego n law , fo r cleanin g u

p thei r sites . Th e US T Cleanup Progra mi s responsibl e fo

r ensurin g tha

t th e cleanu

p i s don e i n a wa y that protect s huma

n healt h an d th e environment . Orego n la w require s th e DE Q t o recove r fromth e responsibl e parties , th e cost s of

carryin g out

thi s responsibility . DE Q invoice s th e responsible part y fo r oversigh t ofthe projec

t whe n mor e tha n $25 i n cost s have been incurred . Paymen t i s due within 3 0 days . 1.7.2 : Wha t

DE Q cost s ar e charge d t o responsibl e parties ? Orego n law s authoriz e DE Q t o charg e al l reasonabl e cost s attributabl e t o o r associate d wit

h cleanu p a t aparticula

r site . DE Q account s fo

r thes e cost s a s direc t

and indirec t

costs . Direc t cost s includ e DE Q staf

f salarie s and wages , employe e benefit s suc h a s healt h care , an d employe r payrol l taxes . Direc t cost s attributabl e to asite ma y includ e but

are no t limite d t o time , equipment , an d material s use d by staff

: Consultin g wit h th e owne rand/o rconsultan t • visitin g th e sit e • reviewin g propose d cleanu p action s • reviewin g dat a an d report s describin g th e typ e an d exten t o f contaminatio n • processin g photo s an d coverin g othe r expenditure s mad e specificall y fo rth e sit e • updatin g database s • makin g an d receivin g phon e call s pertainin g t o th e site' • an d enforcin g agains t violations . Indirec t cost s suppor

t th e operatio n ofth e program , but ar e no t directly relate d t o specifi c projects . Typica l indirec t cost s include : Offic e space , offic e equipmen t an d supplie s • supplie s an d equipmen t use d I n sit e investigation s an d othe rfiel d activitie s • non-site-specifi c activitie s o f projec t staff , suc h a s trainin g an d administratio n • clerical , compute r networi< , tim e accounting , invoicing , an d grant s managemen t • developmen t o f technica l guidanc e an d polide s • a shar e o f DE Q centralize d services , suc h a s accounting , budgeting , huma n resources , an d Informatio n systems . 1.7.3 : Ho w ar e individua l sit e cost s figured? DE O doe s no t

us e standar

dhourl y billin g rates . Instead , DE Q calculate s cost s incurre d directly fo r sit e wor k an d the n add s afacto

r t o cove r indirec t costs . DE Q accountin g system s recor d th e tim e eac h employe e work s o

n aproject . Staf

f tim e i s charge d t

o th e projec t

usin g a n hourly rate calculate d fo

r each employe e (salar

y an d benefits) . Indirec t

cost s ar e calculate da s apercent

of directl y charge d personne l costs . Othe r cost s incurre d fo

r specifi c cleanu

p projects , such a s us e o f stat e cars , ar e als o recorde d an

d invoice d a s direc t

costs . 1.7.4 : Ho w ar e th e indirec t rate s established ? ^ Th e Lan dQualit

y Division' s indirec t

rate i s recalculate d eac h yea r based o n th e actua

l rati o of indirec t t o direc t cost s fro mth e previou s year . DE Q prepare s a n annua l report , which describe s th e methodolog y and show s expenditure s use di n th e calculation . , ' The DE Q agency indirec t

rate i s negotiate dannually wit h th e federa

l Environmenta

l Protectio n Agenc

y (EPA) , s o tha

t indirec t charge s ca

n b e charge d agains t

federa l grant s an d cooperativ e agreements . EP A require s tha

t thi s indirec t

rate b e charge d t o all DE Q activities .

US T Cleanu p Manua l 1 1 Ma y 200 9Orego n Departmen t of Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m 1.7.5 : Projec t

Prioritizatio n Federa l fundin g allow s DE Q t o provid e aminimu mprogra mt o carr y out th e federa l requirement s an

d Oregon' s legislativ e mandate s to protec t huma n health , safet

y an d th e environment . While cos t recover y supplement s th e federa

l funding , i t doe s no t provide enoug h fundin

g t o kee p pac e wit h th e demand s on DE Q staf f Th e informatio n belo w describe s how DE Q i s handlin g thi s workload . Th e Department' s Hig h Priorit y Site s I f you r sit e i s ahig h environmenta l priority , yo u ca n expec t to hea r fro mu s DE Q use s arisk

prioritizatio n syste mt o focu s it s limite d resource s o n thos e site s wit h th e greates t

ris k t o huma n health , safet

y an dwelfare , an

d th e environment . The prioritizatio n systemgive s high score s t o site s contaminatin g groundwate

r or surfac e water , or

wher e there ar e off-sit e impacts . Thes e hig

h priorit y projects ar

e assigne d to a

n US T Cleanu p projec t manage r fo r technical assistance , review an d genera l oversight durin g th e cleanu

p process . A s each cleanu p of ahigh priorit

y site i s completed , th e next highes t priorit y site i s assigned . Responsibl e Party' s Hig h Priorit y Site s I f you r sit e i s ahig h priority fo r

you , le t u s kno w throug h th e agreemen t proces s A n "agreement

letter " optio n ha s been set

u p fo r peopl e whos e site s ar

e lowe r o n DEQ' s priorit

y list . Thi s optio n i s fo

r thos e peopl e whos e own prioritie s ar e drivin g their

cleanu p an d nee d DE Q sign-of

f on their site (e.g. , t o sell thei r property , obtai n financing o r insurance , etc.) . Yo

u should receiv e a

n agreemen

t lette r in th e packe

t of information sen

t t o yo u whe n you first

repor t th e release . I f

yo u sig n an

d retu mthi s agreement , th e DE Q know s tha t you ar e willin g to cooperat e an dpa y oversight

costs . Unde

r thes e cfrcumstance s we ca

n schedul e th e review of

you r sit e on afirst-come, first-serve dbasis . Importan t Not e Yo u ar e require d b y rul e t o procee d immediatel y wit h you rsit e investigatio n an d cleanu p regardles s o f th e priorit y o f you rsit e o rwhe n DE Q assign s a projec t manage rt o overse e you rproject . Yo u m us t als o compl y wit h al l environmenta l regulations , includin g al l reportin g requirements . Waitin g fo ryou rsit e t o wor k it s wa y u p DEQ' s priorit y lis t carrie s som e risks . B y takin g n o actio n yo u wil l b e i n violatio n ofth e rule s an d potentiall y subjec t t o enforcement . Also , contaminatio n a t you rsit e may continu e t o mov e makin g futur e cleanu p mor e difficul t an d mor e expensive . Fo rthes e reason s yo u ar e encourage d t o tak e actio n immediatel y a s outline d i n thi s guidanc e document . Eventually , you

r sit e will mov e u

p our priorit y lis t an d we will ge

t to it . W e expect tha t if acompeten

t servic e provide

r o r consultan t carefull y follow s th e mle s and th e guidance , ther e shoul d b e no surprise s whe n your sit e come s u p fo r DE Q review .

US T Cleanu p Manua l 1 2 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Program SECTIO N 2 : US T CLEANU P RULE S SECTIO N 2.1 : OVERVIE W O F US T CLEANU P RULE S Th e Departmen t

o f Environmenta l Quality' s Cleanu p Rule s fo r Leakin g Petroleu mUndergroun d Storag e Tan k (UST ) System s (OA R340-122-020 5 throug h 340-122-0360 ) provid e severa l option s fo r cleanin g u p pefroleum-contaminate d soi l an dgroundwater . After carryin g ou t

al l appropriat e reporting , abatement , an d mvestigatio n requirement s i n OA R 340-122-020 5 throug h 340-122-0240 , yo u ca n complet e a n US T cleanu p b y demonsfratin g tha t you r facility * meet s on e o r mor e ofth e following :

• Low-impac t

sit e (LIS ) requirement s (OA R340-122-0243) ;

• Risk-base d concenfration s (OA R340-122-0244) ;

• Generi c remed y requirement s develope d b y th e Departmen t (OA R340-122-0252) ; o r

• Soi l Matti x cleanu p level s (OA R340-122-032 0 throug h OA R340-122-0360) . Th e optio n yo u selec t

will depen d o n site-specifi c factor s includin g th e magnitud e an d exten t o f contamination , ag e o f th e release , contaminant s foun dat th e site , an dlan d an d wate r use . Thi s sectio n ofth e US T Cleanu p Manua l summarize s th e requirement s ofth e US T Cleanu p Rules . A flowchart i s include dt o sho w ho w th e differen t mle s relat e t o eac h other . Th e purpos e o f thi s sectio n i s t o explai n ho w th e mle s ar e intende dt o b e applied . Althoug h th e summar y an d flowchart ar e provide d fo r

you r guidance , yo u shoul d alway s refe r t o th e mle s themselve s fo r th e specifi c requirements . Informatio n abou t

othe r guidanc e document s tha t ma y b e helpfu l for

US T cleanu p project s ca n b e foun d i n Sectio n 5.2 : Additiona l Guidanc e Document s a t th e bac k o f thi s manual . REMINDE R Thi s guidanc e documen t I s limite d t o a discussio n o f Orego n Departmen t o f Environmenta l Qualit y US T Progra m cleanu p rules . Fo ryo u t o properl y compl y wit h thes e mles , however , yo u wil l ofte n nee d t o understan d an d compl y wit h othe rmle s an d regulation s Includin g bu t not limite d t o th e following : • Monitorin g wel l Installatio n an d wel l decommissionin g requirement s (Departmen t o f Wate rResources) ; • Servic e Provide rlicensin g b y DE Q an d constmctio n contracto rregistratio n requirement s (Constructio n an d Contractors Board) ; • Professiona l geologis t o renginee rregistratio n requirement s (separat e Board s fo rRegistere d Geologist s an d Professiona l Engineers) ; • Othe rDE Q rule s suc h as Hazardou s Waste , Soli d Waste , Wate rQuality , an d Ai rQuality , dependin g o n site specifi c situations ; an d • Loca l lan d us e an d fir e preventio n rule s an d ordinances . I t i s vou rresponsibility t o ensure tha t yo u compl y wit h al l applicabl e rule s an d regulation s whe n carryin g ou t US T cleanu p activities , an d tha t yo u onl y employ peopl e wh o are qualifie d t o perfor m thes e tasks . "Facility " o r

"Site " mean s any building , structure , installation , equipment , pip e o r pipelin e includin g an

y pip e into asewer o r publicl y owne dtreatment

works , well , pit , pond , lagoon , impoundment , ditch , landfill , storag e container , above groun d tank , undergroun dstorag e tank, motor vehicle , rollin g stock , aircraft , o r an y site o r are awher

e ahazardou s substanc e ha s bee n deposited , stored , dispose dof , o r placed , o r

otherwis e com

e tob e locate d an d wher

e areleas e ha s occurre d o r wher e there , i s athrea t

o f arelease , bu

t doe s no t include an

y consumer

produc t i n consumer

us e o r an y vesse l US T Cleanu p Manual 1 3 Ma y 2009Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m

SECTIO N 2.2 : RULE S FLOWCHAR T

1 Purpos e (0205 )

Definition s (0210 ) Scop e an d Applicabilit y (0215 ) Requirement s & Option s (0217 ) Samplin g & Analysi s (0218 ) Initia l Respons e (0220 ) Initia l Abatemen t (0225 ) I f fre e produc t present , thi s i s a concurren t pattiway .

Initia l Sit e Characterizatio n (0230 ) Conside rlil<el y remedy . I f risl<-based , begi n conceptua l sit e model . Fre e Produc t Remova l (0235 )

Investigatio n fo rMagnitud e & Exten t o f Contaminatio n (0240 ) N o Continu e fre e produc t remova l a s lon g a s needed .

' ' Soi l Matri x (0320-0360 ) (Fo rSoi l Only ) ' ' Lo w Impac

t (0243 )

' \Cont i ' ' ^ \ Ye s . •Q\S'>y ^

^ 

# T i Risk-Base d (0244 ) ' ' Correctiv e Actio n Pla n (0250 )

1 ' Publi c Commen t (0260 ) ' r iN O ru i uie i rtUUUIl ' ' Generi c Remed y (0252 )

1 '

, Ye s / S ^ SCon t rolsO "

"

Note : Th e number s i n parenthese s o n th e flowchar t refe rt o th e ml e number s withi n OA R 340-122 . Fo rexample , "Initia l Respons e (0220) " mean s tha t th e initia l respons e requirement s ar e specifie d i n OA R 340-122-0220 .

US T Cleanu p Manua l 1 4 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 2.3 : OUTLIN E O F RUL E SECTION S Cleanu p Rule s Fo r

Leakin g Petroleu mUS T System s OAR340-122-020 5 throug h 340-122-036 0 Effectiv e Date : Novembe r 2,199 8 340-122-020 5 Purpos e 340-122-021 0 Definition s 340-122-021 5 Scop e andAppHcabilit y 340-122-021 7 Requirement s and Remediatio n Option s 340-122-021 8 Samplin g and Analysi s 340-122-022 0 Initial Respons e 340-122-022 5 Initia

l Abatement

Measure s an

d Sit e Check 340-122-023 0 Initia l Sit e Characterizatio n 340-122-023 5 Fre e Produc t Remova l 340-122-024 0 Investigatio n fo r Magnitude an

d Extent o f Contaminatio n 340-122-024 3 Low-Impac t Site s 340-122-024 4 Risk-Base d Concentration s 340-122-025 0 Correctiv e Actio n Pla n 340-122-025 2 Generi c Remedie s 340-122-026 0 Publi c Participatio n 340-122-032 0 Soi l Mafri x Cleanu p Option s 340-122-032 5 Evaluatio n of Matri x Cleanup Leve l 340-122-033 0 Evaluatio n Parameter s 340-122-033 5 Numeri c Soil Cleanup Standard s 340-122-034 0 Sampl e Numbe r and Locatio n 340-122-034 5 Sampl e Collectio n Method s 340-122-035 5 Evaluationo f Analytica l Result s 340-122-036 0 Reportin g Requirement s

US T Cleanu p Manua l 1 5 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

SECTIO N 2.4 : CLEANU P RULE S FO R LEAKIN G PETROLEU M US T SYSTEM S Note : Officia l copie s o f th e Orego n Administrativ e Rule s ar e containe d i n th e Administrativ e Order s file d a t th e Archive s Division , 80 0 Summe rSt . NE , Salem , Orego n 97310 . Th e cop y provide d belo w I s fo ryou rconvenienc e only . An y discrepancie s wit h th e publishe d versio n ar e satisfie d i n favo ro f th e Administrativ e Order . Th e Orego n Administrativ e Rule s ar e copyrighte d b y th e Orego n Secretar y o f State . 340-122-020 5 Purpos e Thes e rule s establis h th e standard s an d proces s fo

r th e investigation , monitoring , and remedia l activitie s necessar

y t o protec t publi c health , safety , an

d welfar e an d th e environmen

t in th e event

of areleas e o

r threa t o f areleas e from a petroleumUS T systemsubject t o ORS 466.70 5 tiirough 466.835 , 466.994,465.20 0 throug h 465.455 , an d 465.900 . Sta t Auth : ORS465.40

0 & OR S 466.74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & ORS466706

- ORS466.83 5 Hist : DEQ29-198 8 f

& cert , e f 11-9-88 ; DE

Q 15-1991 , f

& cer t e f 8-14-91 ; DEQ23-1998, f

& cert , e f 11-2-9 8 340-122-021 0 Definition s Term s no t definedi n thi s rul e hav e th e meaning s se t fort h i n ORS 465.20 0 an

d 466.706 . Additiona

l term s ar e defined a s follow s unles s th e context require s otherwise : (1 ) "Above-Groun dRelease " mean s an y releas e to th e land surfac e ort o surfac e water . Thi s include s but i s not limite d to release s fromth e above-groun d portio n o f apefroleu mUS T systeman

d release s associate d wit

h overfill s an

d fransfer operation s durin g petroleumdeliverie s t o o r dispensin g from apetroleumUS T system . (2 ) "Acceptabl e Risk

Level " ha s th e meaning s set fort h in OA R340-122-0115(1 ) throug h (6) . (3 ) "Ancillar

y Equipment " mean s an

y device , includin g but

no t limite d t o piping , fittings , flanges, valves , an d pumps , usedt o distribute , meter , o

r contro l th e flow o f

petroleumto an

d from apefroleu

mUS T system . (4 ) "Aquati c Sediments " mean s an y collectio n o f

fine-, medium- , an

d coarse-graine d mineral s an d organi c particle s tha t ar e foun dwithin aquati c habitats . (5 ) "Below-Ground Release " mean s an y releas e to th e lan

d subsurfac e havin g concentration s detecte d by th e Northwes t Tota l PetroleumHydrocarbo n Identificatio n Analytica l Metho d (NWTPH-HCID , DEQ , Decembe r 1996) , or t o groundwate

r havin g concentration s detecte d by an y appropriat

e analytica

l metho d specifie d in OA

R340-122

- 0218 . Thi s include s bu

t i s not limite d t o release s fromth e below-groun d portio n of apetroleumUS T systeman d release s to th e lan

d subsurfac e o

r groundwate

r associate d wit

h overfill s and transfe

r operation s a s th e petroleumi s delivere d to o

r dispense dfrom apetroleumUS T system . (6 ) "Buildings " mean s an

y structur e occupie d by residents , workers , o r visitors , includin g convenienc e store s fo r retailin g of

food . Fo r purpose s o f

thes e rules , "buildings " doe s no t include servic e statio n kiosk s unde r 4 5 squar e fee t in siz e if th e kios k i s exclusively dedicate d t o service s fo r motor vehicles . (7 ) "Certifie dDrinkin g Wate r Protectio n Area " i s a

n are atha t ha s been delineate d b

y th e Oregon Healt

h Divisio n in accordanc e wit

h OA R333-061-005 7 an

d certifie d b

y th e Departmen

t in accordanc e wit

h OA R340-040-0180 . Note : T o obtai n information about certifie d drinkin g wate

r protectio n areas , contac t

th e Oregon Healt

h Division' s Drinking Wate

r Progra m(503-731-4010) .

US T Cleanu p Manua l 1 6 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (8 ) "Confirme dRelease " mean s pefroleu mcontaminatio n observe d i n soi l o r groundwate

r a s asheen , stain , o

r pefroleu modor , or

petroleu mcontaminatio n detecte d i n soi l b y th e Northwes t Tota l Petroleu mHydrocarbo n Identificatio n Analytical Metho d (NWTPH-HCID , DEQ , Decembe r 1996) , o r detecte d i

n groundwate

r b y an y appropriate analytica

l metho d specifie d i

n OA R340-122-0218 . (9 ) "Contaminan

t of Concem " mean s ahazardou s constituent containe d i

n petroleumpresen

t a t aconcentratio n posing apotentiall y unacceptabl e risk t o publichealth , safety , or welfare or

th e environment . (10 ) "Engineerin g Confrol " mean s aremedia l metho d use d t o prevent

o r minimiz e exposur

e t o petroleuman

d hazardou s substances , includin g technologie s that reduc e th e mobilit

y o r migratio n o f

petroleu man d hazardou s substances . Engineerin g control s ma y include but

ar e no t limite d t o capping , horizonta l o r vertica l barriers , hydrauli c controls , an

d altemativ e water

supplies . (11 ) "Excavatio n Zone " mean s a n are acontainin g apetroleu mUS T systemand backfill materia l bounde d b

y th e groun dsurface , walls , andfloor ofth e pit an d frenches into whic h th e petroleumUS T systemi s place d a t th e tim e of installation . (12 ) "Fre e Product " mean s non-aqueou s phas e liqui d petroleum . (13 ) "Gasoline " mean s any petroleu mdistillate use d primaril y fo r motor fue l of which mor

e than 5 0 percen

t of it s component s hav e hydrocarbo n number s o f CI O o r less . Fo r purpose s o f

OA R340-122-020 5 throug h 340-122-0360 , th e concenfratio n o f

gasolin e i

n soi l o r groundwate

r i s th e leve l determine d by th e Northwes t Tota l Petroleum Hydrocarbo n Metho dNWTPH-Gx . (14 ) "Groundwater " mean s an y water , excep t

capillar y moisture , beneat

h th e lan d surfac e o

r beneat h th e bed ofan y stream , lake , reservoir , or

other bod y o f surfac e wate

r withi n th e boundarie s of

th e state , whateve

r ma y b e th e geologica l formation o

r structure in whic h suc h wate r stands , flows, percolate s o r otherwis e moves . (15 ) "Hazardou s Substance " ha s th e meanin g set fort h i n OA R340-122-0115(30) . (16 ) "Heatin g Oil " mean s petroleu mtha t i s No . 1 , No . 2 , No . 4-heavy , No . 5-light , No . 5-heavy , o r No . 6 technica

l grade s of fue l oil ; othe r residua l fiie l oil s (includin g Navy Specia l Fuel Oil an

d Bunke r C) ; o r othe r fuel s whe n used as substitute s fo

r on e o f thes e fiie l oils . (17 ) "Heatin g Oi l Tank " mean s an y on e o r combinatio n o f

undergroun d tank s an

d above-ground or

underground pipe s connecte dt o th e tank , whic h i s use d t o contai n heatin g oi l use dfo r spac e heatin g abuildin g wit h huma n habitation , or wate r heatin g no t

use dfo r commercia

l processing . (18 ) "Institutiona

l Confrol " mean s aremedia l metho d suc h a s alega

l o r administrativ e too l o

r actio n use d to reduc e th e potentia l fo r exposure t o petroleu mand hazardou s substances . Institutiona l confrol s ma

y include but

ar e not limited to us e resfriction s and site acces s and securit y measures . ^ ^ (19 ) "Motor

Fuel " mean s petroleu mor apetroleum-base d substanc e tha t i s moto r gasoline , aviatio n gasoline . No . 1 o r 2 diese l fuel , or

an y grad e o f gasohol , typicall y use d in th e operatio n o f amotor engine . (20 ) "Nativ e Soil " mean s th e soi l outsid e ofth e immediat e boundarie s ofth e pit

tha t wa s originall y excavate d fo r th e purpos e of

installin g a

n undergroun d storag e tank . (21 ) "Non-Gasolin e Fraction " mean s diesel an d an y other petroleu mdistillate used fo r motor fiael o r heatin g oil o f whic h mor

e tha n 5 0 percent

o f it s component s hav e hydrocarbo n number s of C I 1 o r greater . For

purpose s of

OA R

US T Cleanu p Manua l 1 7 Ma y 200 9' Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 340-122-020 5 throug h 340-122-0360 , th e concentratio n of non-gasolin e fraction in soi l o r groundwate

r i s th e level determine d b

y th e Northwes t

Tota l Pefroleu mHydrocarbo n Metho d NWTPH-Dx . (22 ) "Petroleum " mean s gasoline , crude oil , fue l oil , diese l oil , lubricatin g oil , oi l sludge , oil refuse , and crud e oi l flections andrefined pefroleu mfractions, includin g gasoline , kerosene , heatin g oils , diesel fuels , an d an y othe r petroleum-relate d produc t

or waste or fraction thereo f

tha t i s liqui d a t atemperatur

e o f 60 degree s Fahrenhei t

an d a pressur e o f 14. 7 pound s per

square inc h absolute . "Petroleum"'doe s no t include an

y substanc e identifie d a s a hazardou s wast

e unde r 4 0 CF RPar t 261 . (23 ) "Petroleu mUS T System " ha s th e sam e meaning a s given in OA

R340-150-0010(55) . (24 ) "Remediation " or

"Remedia l Measures " include "remedia l action " a s defined in OR

S 465.200(22) , "removal " as definedi n OR S 465.200(24) , and "correctiv e action " a s defined i n ORS 466.706(3) . (25 ) "Remediatio n Level " mean s aconcenfration o f petroleumo

r pefroleu mconstituent s i

n envfrdnmenta

l medi asuc

h a s soil an dgroundwate

r tha t alone , o r i n combinatio n wit

h institutiona

l control s o

r engineering controls , i s determine d t o b e protectiv e o f

publi c health , safety , and welfar e an d th e environmen

t in accordanc e wit

h thes e rules . (26 ) "Residentia

l Heatin g Oi l Tank " i s aheatin g oil tan k used primaril y fo

r single-family dwellin g purposes . (27 ) "Responsibl e Person " include s "owner " a s defined i n OA R340-150-0010(51) , "permittee " a s defined in OA R 340-150-0010(52) , "owne

r o r operator " a s defined i

n ORS 465.200 ( 19) , an

d an y othe r perso n liabl e fo

r o r voluntarily undertakin g remediatio n under OR S 465.200 , e t

seq . o r ORS 466.706 , e t

seq . (28 ) "Risk-Base dConcentration " mean s aconcentratio n o f petroleumo

r petroleumconstituent s in environmenta l medi asuc h a s soi l an d groundwater

tha t i s determine d to b e protectiv e o f publi c health , safety , an d welfar e an d th e envfronmen

t in accordanc e wit

h thes e rule s without

requirin g institutiona

l confrol s o

r engineerin g controls . (29 ) "Soil " mean s an

y unconsolidate d geologi c material s includin g but no t limite d t o clay , loam , loess , silt , sand , gravel , an d till s o r an y combinatio n o f

thes e materials . (30 ) "Surfac e Water " mean s lakes , bays , ponds , impounding reservoirs , springs , wells , rivers , sfreams , creeks , estuaries , wetlands , inlets , canals,'th e Pacifi c Ocea n withi n th e territorial limit s ofth e Stat e of Oregon , an

d all othe r bodies , natura

l o r artificial , inlan d o

r coastal , fresh o

r salt , publi c o

r private (excep t

thos e privat

e water s whic h do no t combine o r effec t ajunctio n wit

h natura l surfac e waters) , whic

h ar e wholl y o r partially within o

r borderin g th e stat

e or withi n it s jurisdiction . (31 ) "Suspecte dRelease " mean s evidenc e of areleas e a s describe d in 4 0 CF R§ 280.50 . (32 ) "Undergroun dstorag e tank " or "UST " mean s an

y on e o r combinatio n o f

tank s (includin g undergroun d pipes ) tha t i s usedto contai n a

n accumulatio n o f

regulate d substance s an

d th e volum

e o f which (includin g th e volume of connecte d undergroun d pipes ) i s 1 0 percent o r mor e beneat h th e surfac e ofth e ground . [Note : OA

R340-150-050 0 require s owner s and operator s o f US T system s to repor

t suspecte d release s t o th e department . Owner s an

d permittee s mus t

refe r to OA Rchapte r 340 , divisio n 15 0 fo

r complet e informatio n on requirement s fo

r undergroun d storag e tanks. ] Sta t Auth : OR S 465.40 0 & OR S 466.74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 466.8 3 Hist : DE Q 29-1988 , f

& cert , e f 11-9-88 ; DE

Q 15-1991 , f

& cer t e f 8-14-91 ; DE

Q 13-1992, f

6-9-92, cer

t e f 10-1-92 ; DE Q 23-1998 , f

& cert , e f 11-2-9 8 UST Cleanu p Manua l 1 8 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 340-122-021 5 Scop e an d Applicabilit y (1 ) OA R340-122-020 5 throug h 340-122-036 0 o f thes e rule s apply t o remediatio n of leaking pefroleu

mUS T system s require do r undertake n in accordanc e wit h OR S 465.20 0 e t

seq . o r OR S 466.706 , e t

seq . (2 ) Notwithstandin g sectio n (1 ) o f thi s rul e an

d OA R340-122-0360(3) , th e Departmen t ma y requir e tha t remediatio n of areleas e fromapefroleu

mUS T syste

mb e goveme d b

y OA R340-122-001 0 throug h 340-122-0115 , if , base d o n the magnitud e o

r complexit y ofth e releas e o

r othe r considerations , th e Department determme s tha

t applicatio n of

OA R 340-122-001 0 throug h 340-122-011 5 i s necessar y t o protec t th e publi c health , safety , an d welfar e o r th e environment . (3 ) Remediatio n o f

release s fromUS T system s containin g regulate d substances , a s defined in ORS 466.706(16) , othe r tha n petroleu mar

e goveme db

y OA R340-122-001 0 throug h 340-122-011 5 o r a s otherwis e provide d unde r applicable law . (4 ) Notwithstandin g sectio n (1 ) o f thi s rule , remediatio n o f

release s fromresidentia

l heatin g oi l tank s ar

e goveme d b

y OA R340-177-000 1 throug h 340-177-0120 . Sta t A uth. : OR

S 465.40 0 & OR S 46 6 74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 46 6 83 5 ' ^Hist : DEQ29-1988 , f

& cert, e f 11-9-88 ; DE

Q 15-1989 , f

& cer l e f 7-28-8 9 (andcorrected8-3-89) ; DE Q 15-1991 , f

& cert , e f 8-14-91 ; DE

Q 13-1992 , f

6-9-92, cert

, e f 10-1-92 ; DE

Q 23-1998 , f

& cert, e f 11-2-9 8 340-122-021 7 Requirement s an d Remediatio n Option s (1 ) Fo r areleas e o f

pefroleu mfroma n US T system , th e responsibl e perso n mus t complet e th e following requirements : (a ) Perfor minitial response , abatement , an d site characterizatio n i n accordanc e wit

h OA R340-122-022 0 throug h 340-122-0230 . (b ) Remov e free produc t

t o th e maximu

mextent practicabl e i n accordanc e wit h OA R340-122-0235 . (c ) Wher e result s ofth e initia

l site characterizatio n indicate tha t th e magnitude an

d exten t o f soil contaminatio n hav e no t been full y delineated , o

r tha t groundwate

r contaminatio n ma

y exten d beyon d th e tan

k pit , complet

e additiona l sit e investigatio n i

n accordanc e wit

h OA R340-122-0240 . (d ) Base don sit e investigations , perfor mon e ofth e followin g remediatio n approaches : (A ) Remediatio n in accordanc e wit h OA R340-122-032 0 through 340-122-036 0 fo r moto r fue l an d heating oi

l i n soils ; (B ) Closur e o r remediatio n i

n accordanc e wit

h OAR340-122-024 3 fo

r low-impac t

sites ; (C ) Remediatio n pursuant

t o acorrectiv e actio n pla

n develope d i

n accordanc e wit

h OA R340-122-0244 and 340-122-0250 ; (D ) Remediatio n pursuant

t o ageneri c remed

y develope d i

n accordanc e wit

h OA R340-122-0252 ; o

r (E ) An y appropriate combinatio n o f subsection s (A) , (C) , and (D ) o f thi s rule . (e ) Submit

all reports , plans , laborator y data , an d other documentatio n require d in thes e mle s o r otherwis e requeste dby th e Department durin g th e cours e of

investigatio n an

d remedia l measures .

UST Cleanu p Manua l ,1 9 Ma y 200 9• Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m (2 ) Th e measure s describe di n sectio n (1 ) of

thi s ml e ar

e subject to Departmen

t revie w and approva

l a s specifie di

n thes e mles , an d to publi c review and commen t a s specified i

n OA R340-122-0260 . Sta t Auth. : OR S 465.40 0 & OR S 466:746 Stats . Implemented : OR

S 465.20 0 - ORS465.45 5 & ORS466706

- ORS466.83 5 Hist. : DE Q 2 3-1998 , f&cert.e f

11-2-9 8 340-122-021 8 Samplin g an d Analysi s (1 ) T o sfreamlin

e th e investigatio n of

petroleu mUS T release-sites , aresponsibl e perso n ma y us e expedite d sit

e assessmen t method s (e.g. , pus h prob e samplers ) fo r sampl e collectio n an

d analysi s a s lon g a s all method s an d result s ar e documente d in subsequen t report s t o th e Department . However , sample s use d t o demonstrat e complianc e wit

h remediatio n level s mus t

b e collecte d and analyze d in accordanc e wit h thi s section . (a ) Sampl e collection , preservation , storage , an d handlin g method s mus t confor mwit h appropriat

e procedure s i

n "Tes t Method s fo

r Evaluatin g Soli d Waste, " SW-846 , 3r d Edition , Fina

l Update s I , II , IL\ , IIB an

d III , Revise d Ma y 199 7 (U.S . EPA) . (b ) Sample s mus t

b e teste d fo

r all reasonably-likel y contaminant s o f conce mrelevant

t o th e petroleumreleased , th e ag e o f th e release , an

d th e mediumcontaminate d takin g int o accoim t appropriate remediatio n levels . Th e following mus t

b e considere d and , where appropriate , sampled : (A ) Tota l PetroleumHydrocarbon s (TPH ) i n th e gasolin e rang e and TP H i n th e diesel/lub e oi

l range , a s appropriate ; (B ) Fo r gasoline releases , benzene , toluene , ethylbenzene and total xylene s (BTEX) ; naphthalene , lead , ethylen e dibromid

e (EDB) , ethylen e dichlorid e (EDC) , an d methy l t-buty l ethe

r (MTBE) ; (C ) Fo r diesel o r heatin g oi l releases , BTE

X an d polynuclea

r aromati c hydrocarbon s (PAHs) ; an d (D ) Fo r wast e oi l releases , BTEX , PAHs , volatil e chlorinate d hydrocarbons , and leachabl e concentration s o f cadmium , chromium , and lead . (c ) Groundwate

r sample s collecte d fo

r th e purpos e o f

testin g fo r lea d mus t b e filteredimmediately upo n collectio n usin g a0.4 5 micro n filter

an d analyze d fo

r dissolve d lead . (d ) Th e following analytica l method s mus t

b e employed . (A ) Tota l PetroleumHydrocarbon s mus t b e analyze d b

y th e Northwes t

Tota l Pefroleu mHydrocarbo n Method s (DEQ , Decembe

r 1996 ) including , a s appropriate : (i ) Hydrocarbon Identificatio n b y NWTPH-HCID ; (ii ) Gasoline Rang e Hydrocarbon s by Metho d NWTPH-Gx ; and (iii ) Diesel/Lub e Oi

l Rang e Hydrocarbon s b

y Metho d NWTPH-Dx .

-- . (B ) Leachabl e concenfration s o f cadmium , chromium , an

d lea d mus t b e analyze d by EP

A Metho d 131 1 (Toxicit y Characteristi c Leachin g Procedure) . .

UST Cleanu p Manua l 2 0 > Ma y 200 9^

Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (C ) All other

contaminant s o f

conce mmus t

b e analyze d b

y appropriat

e procedure s describe di

n "Tes t Method s fo

r Evaluatin g Soli d Waste, " SW-846 , 3r d Edition , Fina

l Update s I , II , IIA , IIB and III , Revise d Ma y 1997 (U.S . EPA) . (e ) Th e Department

ma y accep t altemativ e samplin g and analytica l method s tha

t hav e bee n shown to b e appropriat e fo r th e contaminant s o f

conceman

d th e medi ao f

interest , an

d tha t have acceptabl e qualit

y contro l measures , an

dlimit s o f detection . (2 ) Th e Departmen

t ma y reques t additiona l test s i f site-specifi c condition s warran t additiona l information . Sta t Auth. : ORS465.40

0 & ORS46674 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 466.83 5 Hist.:DEQ23-1998, f

& cert , e f 11-2-9 8 340-122-022 0 Initia l Respons e For asuspecte d or

confirme d releas e from apefroleu mUS T system , th e responsibl e perso n mus t perfor mth e following initia

l respons e action s withi n 2 4 hours : (1 ) Repor t th e followin g release s t o th e Department : (a ) A U below-groun d releases ; (b ) All above-groun d release s t o th e land surfac e i n exces s o f

2 5 gallons , or

release s o f

les s tha n 2 5 gallon s i f

th e responsibl e perso n i s unabl e t o contai n or clea n u p th e releas e withi n 24 hours ; an d (c ) Al l above-groun drelease s t o surfac e water tha t resul t in ashee n o

n th e water . (2 ) Tak e immediat

e actio n t o preven t

an y furthe r releas e ofth e petroleu minto th e envfronment . (3 ) Identif y an d mitigate fire, explosion , an d vapo r hazards . Sta t Auth. : OR S 465.40 0 & OR S 46 6 74 6 j Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 46 6 83 5 Hist. : DE Q 29-1988 , f

& cert , e f 11-9-88 ; DE

Q 15-1991 , f

& cert , e f 8-14-91 ; DE

Q 23-1998 , f

& cert , e f 11-2-9 8 340-122-022 5 Initia l Abatemen t Measure s an d Sit e Chec k (1 ) Unles s directe d t o d o otherwis e by th e Department , aresponsibl e perso n mus t perfor mth e following abatemen

t measures : (a ) Remov e a s muc h o f

th e petroleu mfro

mth e US T syste ma s i s necessar y to preven

t furthe r releas e t o th e environment ; (b ) Visuall y inspec t an y above-groun d release s o

r expose d below-groun d release s an d preven t furthe r migratio n of th e release d pefroleuminto surroundin g soil s an d groundwater ; (c ) Monitor

and mitigate any fire and safet y hazard s pose d b y vapor s o r free produc t

tha t hav e migrate d fromth e US T excavatio n zon e and entere d int o subsurfac e stmctures ; (d ) Remediat

e hazard s pose dby contaminate d soil s tha t ar e excavate d o

r expose d durin g confirmation , site investigation , abatement , or remedia l activities . Fo

r remedia l measure s including freatment o r disposa l o f soils , th e responsibl e perso n mus t

comply wit

h applicabl e stat

e and loca l requirements ; USTCIeanu p Manua l 2 1 Ma y 200 9^

Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m (e ) Measur

e fo r th e presenc e o f

areleas e wher

e contaminatio n i s mos t

likely t o b e present

a t th e US T site . I

n selectin g sampl e types , sampl e locations , an d measuremen

t methods , th e responsibl e perso n mus t conside r th e natur e o f th e store dpetroleum , typ e of backfill , dept

h t o groundwater , an

d othe r factor s a s appropriat

e fo r identifyin g th e presenc e an dsourc e ofth e release ; and (f ) Investigat

e t o determin e th e possibl e presenc e of fre e product , an

d begin free produc t

remova l a s soon a s practicabl e i

n accordanc e wit

h OA R3 40-122-02 3 5 . (2 ) Contaminate dsoi l shal l b e manage d in accordanc e wit h soli d wast

e regulations . (3 ) Within 2 0 day s afte

r releas e confirmation , or

withi n alonger

perio d o f tim e approve d by th e Department , th e responsibl e perso n shall submit arepor t to th e Departmen

t summarizing th e step s taken unde r OA R340-122-022 0 an

d 340-122-022 5 an

dan y resultin g information o

r data . Sta t Auth : OR S 465.40 0 & OR S 46 6 74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - ORS466.83 5 Hist : DE Q 29-1988 , f

&cert . e f 11-9-88 ; DE

Q 13-1992, f

6-9-92, cer

t e f 10-1-92 ; DEQ23-1998 , f

& cer t e f 11-2-9 8 340-122-023 0 Initia l Sit e Characterizatio n (1 ) Unles s directe dt o do otherwis e by th e Department , aresponsibl e perso n mus t collec t informatio n about

th e sit e andth e natur

e of th e release , includin g information obtaine d whil e confirming th e releas e o r completin g initia

l abatemen t measure s under

OA R340-122-0225(1) . Thi s informatio n mus t include th e following , a s appropriate : (a ) Datao n th e natur

e and estimate d quantit

y ofth e release ; (b ) Datafromavailabl e source s and/or sit e investigation s regardin g us e an d approximat

e location s of

well s potentially affecte

d by th e release , presenc e of acertifie d drinkin g wate

r protectio n area , distanc e to th e neares t surfac e water , subsurfac e soi l conditions , location s of subsurfac e sewers , wate

r lines , an d othe r utilities , an

d lan d us e fo r all adjacen

t propertie s an

d al l propertie s potentiall y affected b y th e release ; (c ) Result s ofth e measurement s require d unde r OA R340-122-0225( 1 )(e) ; (d ) Result s ofth e free produc t investigation s require d under OA R340-122-0225(l)(f) , t o b e use d b y th e responsibl e perso n t o determin e whethe r free produc t

mus t b e recovered ; (e ) A site map , draw n t o scale , showing th e locatio n o f buildings , curren

t an d forme r location s o f

US T systems , utilit y lines , sampl e locations , and othe r relevan t site information ; an

d (f ) Othe r informatio n necessar

y to characteriz e th e site . (2 ) Withi n 4 5 day s of

releas e confirmation , o

r withi n alonge

r perio d of tim e approve d by th e Department , a responsibl e perso n mus t

submit th e information collecte d unde r sectio n (1 ) of

thi s rale an

d require d unde

r OA R340

- 122-0235(5 ) t o th e Department . Sta l Auth. : OR

S 465.40 0 & OR S 466.74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 466.83 5 Hist : DEQ29-198 8 f

& cert, e f 11-9^-88 ; DE

Q 13-1992, f

6-9-92, cert

, e f 10-1-92;.DEQ23-1998 , f

& cert , e f 11-2-9 8 340-122-023 5 Fre e Produc t Remova l A t site s wher e investigation s under

OA R340-122-0225 ( 1 )(f

) indicat e th e presenc e o f

free product , th e responsibl e perso n mus t

remov e th e free produc t

t o th e maximu

mexten t practicabl e while continuing , a s necessary , an y action s

• • . / • ' UST Cleanu p Manua l 2 2 Ma y 200 9. Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m initiate dunde

r OA R340-122-022 0 throug h 340-122-0230 , o r whil e preparin g fo

r action s require d unde

r OA R340

- 122-024 0 throug h 340-122-0250 . I n meetin g th e requirement s o f thi s mle , th e responsibl e perso n must : (1 ) Initiate free produc t

remova l a s soo n a s practicable . (2 ) Conduc t

free produc t

remova l i n amanner

tha t minimize s th e sprea

d o f contaminatio n int

o previously

uncontaminate dzone s by usin g recover y an d disposa

l technique s appropriat

e t o th e hydrogeologi c condition s a t th e site , andtha

t properly treats , discharges , or dispose s o f

recover y byproduct s in complianc e wit h applicabl e local , state , an dfedera l regulations . (3 ) Us e abatemen

t o f fre e produc t migratio n a s aminimumobjectiv e fo r th e desig n ofth e free produc t remova l system . (4 ) Handl e an

y flammable product s i n asaf e manne r to prevent

fires or explosions . (5 ) Includ e i n th e repor

t submitte d under

OA R340-122-0230(2 ) asummar y o f fre e produc t remova l activities , describing : (a ) Th e name ofth e confracto r o r responsibl e perso n performin g th e free produc t remova l measures ; (b ) Th e estimate d quantity , type , and thicknes s of free produc t

observe d o

r measure d i n wells , boreholes , and excavations ; (c ) Th e typ e o f

free produc t

recover y systemused ; (d ) Th e locatio n o f

an y on-site or

off-sit e wastewater

discharg e associate d wit

h th e recover

y operation ; (e ) Th e typ e of

freatment applie d to , and th e effluen

t qualit y from, an y wastewater

discharge ; (f ) The step s tha

t hav e bee n o

r ar e bein g take n to obtai n necessar y permit s fo

r an y wastewate

r discharge ; and (g ) Th e dispositio n o f

recovere d free product ; an d (h ) Othe r informatio n relevant

t o th e recover

y of free produc t

a t th e site . Sta t Auth : OR S 465.40 0 & OR S 46 6 74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 466.70 6 - OR

S 466.83 5 Hist. : DEQ29-1988, f

&'cert . e f 11-9-88 ; DE

Q 13-1992 . f

6-9-92 , cert

, e f 10-1-92 ; DEQ23-1998 , f

& cert , e f 11-2-9 8 340-122-024 0 Investigatio n fo rMagnitud e an d Exten t o f Contaminatio n (1 ) I f datacollecte ddurin g th e initia l site characterizatio n do no t identif y th e ful l nature , magnitude , an

d exten t of soil andgroundwate

r contamination , th e responsibl e perso n mus t conduc t a n investigatio n fo

r thi s purpose . (a ) Th e area

l an dvertica l extent of soi l contaminatio n mus t

b e determined . (b ) Th e area

l extent o f groundwate

r contaminatio n mus t

b e determined , includin g a n estimat e o f groundwate

r velocit y andflow direction . (c ) Representativ e sample s o f al l affected medi amus t

b e analyze d fo

r reasonably-likel y contaminant s of concem base do n th e nature ofth e releas e and applicabl e remedia l option s unde

r OA R340-122-0217 . US T Cleanu p Manua l 2 3 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m (d ) Expedite dsit

e assessmen

t tool s (e.g. , push-prob e samplers ) ma y b e use d t o provide apreliminar y measur e o f th e magnitude an

dexten t o f groundwate

r contamination . (e ) I f groundwate

r contaminatio n appear s to hav e migrate d beyond th e immediat e vicinit y of th e tan k pit , additiona l groundwate

r investigatio n mus t

b e performed i

n accordanc e wit

h sectio n (2 ) of

thi s ml e unles s th e responsibl e perso n ca

n demonstrate t o th e Departmen t tha t th e contaminatio n present s no potentia l threa t t o huma n healt h o r th e environment . (2 ) Groundwate

r investigation s require d b

y sectio n (1 ) of

thi s rule , an d groundwate

r monitorin g unde

r correctiv e actio n plan s required'b y OA R340-122-025 0 mus t

b e carrie d out

a s follows : (a ) Groundwate

r monitorin g system s mus t include aminimumo f

on e hydraulically-upgradient an d tw o hydraulically-downgradient groundwater

monitorin g wells , capabl e o f adequately characterizin g bot h sit e hydrogeolog y an

dth e vertica

l an d horizonta

l magnitude an

d extent of groundwate

r contamination . Additiona

l monitorin g well s ma

y b e requfred by th e Departmen t if necessar y t o adequately characteriz e th e sit e o r t o establis h complianc e monitoring points . Al l monitorin g well s mus t b e designed , completed and , whe n appropriate , removed accordin g t o th e Wate

r Resource s Department' s administrativ e mles , OA R690-240-000 5 throug h 690-240-018 0 (Constractio n an

d Maintenanc e o f

Monitorin g WeU

s an d Othe r Hole s in Oregon) . (b ) Whe n th e installatio n o f

monitorin g well s i s impractica l du e to specifi c site conditions , th e responsibl e perso n mus t notif y th e Departmen

t and develo p a

n altemativ e cours e o f

actio n which mus t

b e approve d b

y th e Department . (c ) Groundwate

r samplin g event s mus t

mee t th e following minimumrequirements : (A ) Initially , sample s mus t

b e collecte d a

t quarterly intervals . Afte

r fou r consecutiv e quarter s of

groundwate

r monitoring , i f

site condition s warrant

mor e o r les s frequent

sampling , a

n altemativ e samplin g schedul e ma y b e proposed ; (B ) Wate r elevatio n measurement s mus t b e mad e i n al l monitorin g well s durin g each sampling event , unles s th e Departmen

t ha s approve dmeasurement s fromareduce d numbe r o f well s tha t provide sufficien

t datafo r th e determinatio n ofth e groundwater flow direction ; (C ) Forma l chain-of-custod

y record s mus t

b e prepare d and maintaine d fo r each sample ; an

d (D ) Al l samplin g event s fo r purpose s o f

identifying contaminant s of concem , o

r fo r verifying either preliminar y complianc e or

final compliance , mus t

include adequat

e qualit y assuranc e an

d qualif y contro l (QA/QC ) measures . (3 ) Th e responsibl e perso n shal l submit th e information collecte d under section s (1 ) an

d (2 ) o f thi s rale to th e Departmen

t withi n 45 day s of

completin g fieldwork , o

r within alonge

r perio d o f tim e approve d b

y th e Department . Groundwate

r monitorin g report s mus t

b e submitte d afte

r each monitorin g event

unles s a n altemativ e schedul e ha s been approve db

y th e Department , an

d mus t contain th e following information : (a ) A sit e map , drawn t o scale , showin g th e locatio n of all monitorin g well s an

d th e dfrectio

n of groundwate

r flow; (b ) A summar

y of all sampling , haindling , an

d chain-of-custod

y procedure s followed , including , as appropriate , a discussio n ofan y routin e maintenanc e procedure s performed durin g th e quarte r an d an y problem s encountere d (e.g. , failur

e o f apump , cloggin g o f

awell screen , a

n unexplaine d chang e i n th e qualif y ofth e water , o

r an y other , unusua l event) an

d wha t action s wer

e taken , o r wil l b e taken , i

n respons e t o such occurrences ; UST Cleanu p Manua l 2 4 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m " (c ) A summar

y ofth e analytical data , includin g QA/Q C result s fo r th e samplin g event ; (d ) Wate r elevatio n measurement s fro meach monitorin g well , unles s th e Departmen t approve s elevatio n measurement s fro

mareduce dnumbe

r o f wells ; an d (e ) A writte n evaluatio n o f

data , describin g trend s o

r other pertinent information derived fromth e samplin g event , andspecifying th e metho d or method s o f

statistica l analysi s use d t o describ e th e significanc e o f thes e trends . Sta t Auth : OR S 465.40 0 & OR S 46 6 74 6 ' Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46670 6 - ORS466.83 5 Hist : DE Q 29-1988 , f

& cert, e f 11-9-88 ; DE

Q 13-1992 , f

6-9-92 , cert , e

f 10-1-92 ; DE

Q 23-1998 , f

& cert , e f 11-2-9 8 340-122-024 3 Low-Impac t Site s Upon completio n o f

al l applicabl e requirement s o f OA R340-122-020 5 throug h 340-122-0240 , aresponsibl e perso n ma y propos e closur

e o f afacilif y a s alow-impac t

site i f informatio n gathere d during site investigation s clearl y demonstrate s tha

t site condition s hav e stabilize d (i.e. , significant futur e migratio n of

contaminatio n i s unlikely ) and tha t th e site i s likely t o hav e lo w current an d potentia l fiiture impac t

on th e basi s o

f ris k o r impairmen

t o f beneficia l lan dan dwate r uses . Th e purpos e ofth e low-impac t site designatio n i s t o provid e asfreamline d proces s fo

r operatin g ga s station s or

othe r industrial or

commercia

l propertie s tha

t allow s thes e facilitie s t o remain in operatio n whil e th e responsibl e perso n manage s an y potentia l ris k fromcontaminatio n remainin g a t th e site . If th e Departmen

t develop s a generi c remed

y fo r low-impac t

site s i n accordanc e wit

h OA R340-122-0252 , then th e low-impac t site requirement s specifie di n thi s ml e (OAR340-122-0243 ) will n o longer b e i n effect . Unti l such time as alow-impac t site generi c remed y i s i n effect , th e step s fo

r low-impac t

closur e ar e describe d below . (1 ) Th e site mus t

meet eac h o f th e followin g conditions : (a ) The sourc e ofth e releas e ha s been repaire d o r removed , an d all tanks , lines , an d associate d equipmen

t a t th e site hav e been upgrade d t o mee t applicabl e technica

l an d regulator

y standards . (b ) The facilif

y mus t continu e t o b e use

d a s aga s statio n o

r other industria l o r commercia

l us e precludin g potentia

l routin e exposur

e t o children . ^ (c ) Othe r tha n minima l amount s o f

pefroleu mproduc t i n th e tan k pi t a t th e tim e of tan k removal , no measurabl e fre e produc t wa s foun d on th e groundwater . (d ) Concenfration s o f

gasolin e i n th e contaminate d soi l shoul d no t excee d 100

0 ppmTPH , an

d concentration s o f diese l and othe

r non-gasolin e fraction hydrocarbo n i n th e contaminate d soi l should no t excee d 10,000 pp mTPH . (e ) Contaminate dsoi l remainin g a t th e sit e shoul d no t

b e locate d withi n 3 fee

t ofth e land surface , unless : (A ) Contaminant

concentration s do no t

exceed generi c risk-based concentration s fo r direc t contac t develope d in accordanc e wit

h OA R340-122-0252 ; or (B ) Department-approve d institutiona l o r engineerin g control s hav e bee n implemente

d an d will b e maintaine d to prevent direc t contac t wit h soils . (f ) Contaminatio n i s no t

locate d in utilif

y corridors , unless : (A ) The contaminatio n i s show n t o hay e bee n stabilize d an

d i s unlikely t

o resuh i n vapor o r groundwater problems ; US T Cleanu p Manua l 2 5 Ma y 200 9^

Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m __=__ _ (B ) Contaminant

concentration s do no t

exceed generi c risk-base d concentration s fo r afrench worke

r scenari o develope din accordanc e wit h OA R340-122-0252 ; an

d (C ) Th e correspondin g utilif y ha s been notifie d o f

th e contamination . (g ) Servic e statio n an

dother nonresidentia

l building s mus t

no t b e located ove

r or withi n 1 0 latera

l fee t an d residence s mus t

no t b e locate d ove

r o r within 5 0 latera

l fee t o f contaminate d soil , unless : (A ) Contaminant

concenfration s d o no t

excee d generi c risk-base d concentration s fo r volatilizatio n fromsoil s int o building s develope di n accordanc e wit h OA R340-122-0252 ; or (B ) It i s demonsfrated tha

t potentia l exposur e fromvolatilizatio n int

o building s fromthi s contaminatio n doe s not excee dacceptabl e risk

levels ; o r (C ) Department-approve daction s hav e been take n t o mitigat e potentia l vapor problems , (h) If groundwate

r contaminatio n i s foun

d a t th e site : (A ) There ar

e n o wate r supply well s locate d withi n one-quarte r mil e ofth e sourc e o f

contamination ; (B ) Th e groundwate

r plume i s les s tha

n 25 0 fee t in lengt h a s measure d fromth e center ofth e source ; (C ) Monitorin g dataar

e availabl e to demonsfrat

e tha t th e groundwate

r plum e ha s stabilized , o

r i s diminishing i n size ; (D ) Th e groundwate

r plum e doe s not leav e th e sourc e propert

y a t concentration s exceedin g generi c risk-based concentration s develope din accordanc e wit h OA R340-122-0252 , unles s owner s o f othe r affecte d propertie s consent t o institutiona

l o r engineerin g control s necessar y to preven

t exposur e du e t o th e contaminate d groundwater ; and (E ) Servic e statio n an

d other nonresidentia

l building s mus t

no t b e locate d ove

r o r withi n 1 0 latera

l fee t an d residence s mus t

no t b e locate dove

r o r withi n 5 0 latera

l fee t o f contaminate d groundwater , unless : (i ) Contaminan

t concenfration s withi n th e plum e d o no t exceed generi c risk-based concentration s fo r volatilizatio n fromgroundwate r int o building s develope d i

n accordanc e wit

h OA R340-122-0252 ; o

r (ii ) I t i s demonsfrated tha

t potentia l exposur e fromvolatilizatio n int

o building s fromthi s contaminatio n doe s no t excee d acceptabl e risk

levels ; o r (iii ) Department-approve daction s hav e been take n to mitigat e potentia l vapor problems . (2 ) The responsibl e perso n mus t implemen

t institutiona

l or engineerin g controls , in afor macceptabl e t o th e Department , necessar

y t o ensur e tha t asite' s designatio n a s alow-impac t sit e remain s unchanged . (3 ) The responsibl e perso n mus t submit alow-impact-site-closur

e repor t to the Departmen

t tha t include s th e following : (a) A site summar

y wit h appropriate scale d maps , adiscussio n of current and reasonably likely futur e land use s fo r th e site an dadjacen t properties , includin g informatio n fromloca l govemmen

t comprehensiv e plannin g plan s an dzonin g ordinances , an

d informatio n o

n geology , hydrogeology , topography , an d othe r relevan t factors o n whic h th e low-impac t

closur e i s based . USTCIeanu p Manua l 2 6 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m ^ ^ (b ) Informatio n about

th e release , includin g ahistor y o f al l action s taken , dat afromall sample s collecte d a t th e site , an d adescriptio n of

al l contamination , includin g scale d map s showin g th e location s o f contaminatio n that wa s treate d o

r remove d fromth e site and contaminatio n remainin g a t th e site a t th e tim e ofth e report . (c ) Sufficien

t discussio n andsupportin g dat ato addres s each ofth e specifi c low-impac t sit e requirement s liste d i

n sectio n (1 ) of

thi s rale. (d ) If groundwater

contaminatio n i s present

a t concentration s exceedin g generi c risk-base d concentrations , a discussio n of

current an d reasonably likel y futur

e wate r uses . (e ) I f groundwate

r contaminatio n i s present

a t concentration s exceeding generi c risk-based concenfration s an d th e sit e i s locate dwithi n acertifie d drinkin g water protectio n are a(DWPA) , adescriptio n ofth e DWP A an d wha t additiona l informatio n ha s been gathere d and measure s take n to ensur e tha t there ar e n o curren t o r potentia l futur e advers e impact s t o th e groundwater in th e aquife

r withi n th e DWPA . (f ) A proposal , subjec t

to Departmen

t approval , fo

r an y institutiona

l o r engineerin g control s necessar y to maintai n low-impac t

site conditions . (4 ) Upo n revie w ofth e low-impac t site closure report , th e Departmen t may : (a ) Approv e th e repor

t and , upo n receip t

o f adequat e documentatio n showin g tha t an y necessar y institutiona

l or engineerin g control s hav e been implemente d and wil l b e maintained , issu e , alow-impac t

sit e closur e letter stipulatin g th e site condition s tha t mus t b e maintained ; (b ) Reques t

tha t additiona l informatio n b e submitte d o r wor k b e performed i

n suppor t ofth e proposed low-impac t closure ; or (c ) Determin e tha

t th e site doe s no t

mee t th e condition s fo

r low-impac t

closure an d requir e tha t additiona l action s b e take n unde

r other relevant section s ofOA R340-122-020 5 throug h 340-122-0360 . ' (5 ) Th e Departmen

t shal l requir

e publi c notic e consistent

wit h applicabl e requfrements o f OA R340-122-026 0 fo

r site s propose dfo

r low-impac t

closure . (6 ) Th e owne

r ofan y propert

y requirin g control s under

thi s ml e mus t

notif y th e Departmen

t ofan y futur

e change s tha

t migh t affect th e facilify' s designatio n a s alow-impac t site . Stat . Auth : OR

S 465.40 0 & OR S 46 6 74 6 Stats . Implemente

d OR S 465.20 0 - OR S 465.45 5 & OR

S 466.706 - OR

S 46 6 83 5 Hist : DE Q 23-1998 , f

& cer t e f 11-2-9 8 340-122-024 4 Risk-Base d Concentration s Thi s ml e describe s th e requirement s fo r developin g risk-based concentration s fo r us e i n establishin g remediatio n level s i n correctiv e actio n plan s under OA R340-122-0250 . (1 ) A conceptua

l model mus t

b e develope d fo

r th e site describin g how exposur e t o contaminants , i s reasonably likel y to occur . (a ) Th e conceptua

l sit e model mus t

b e base d on , a

t aminimum : (A ) Th e magnitude andarea l and vertical extent

o f soi l an d groundwate

r contamination ; US T Cleanu p Manual . 2 7 Ma y 200 9• , • Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m , (B ) Th e concentratio n of

applicabl e contaminant s of concer n i n each contaminate d medium ; (C ) Th e likelihoo d fo

r exposur e to occur , given th e concentration , location , an d mobilif y ofth e contaminant s i n conjunctio n wit

h factor s such a s loca

l climate , geology , an

dhydrogeology ; an

d (D ) Informatio n o

n current an d reasonably likel y fiitur

e land an d wate r use s in th e are ao f

potentia l impact . (b ) Subjec t

to site-specifi c conditions , th e follovvin g exposur e pathway s mus t

b e considered i

n th e conceptua

l sit e model : (A ) Direc t contac t wit h contaminate d soil s resultin g i n exposur e due t o acombinatio n o f

derma l contact , soi l ingestion , vapor

inhalation , an

d particulate inhalation ; (B ) Leachin g fro

msoil s t o underlyin g groundwate r wit h subsequen

t groundwate

r ingestion ; (C ) Volatilizatio n fromsoil s t o outdoo r air an d subsequen

t inhalation ; (D ) Volatilizatio n fromsoil s to indoor air an d subsequen

t inhalation ; (E ) Ingestio n o

r othe r exposur e t o contaminate d groundwater ; (F ) Volatilizatio n fro

mgroundwate

r t o outdoo r

ai r and subsequen

t inhalation ; and (G ) Volatilizatio n fromgroimdwate r t o indoo r air an d subsequen

t inhalation . (c ) Subjec t to site-specifi c conditions , th e followin g exposur e scenario s mus t

b e considered i

n th e conceptua

l sit e model : (A ) Exposur

e to adult s an

dchildre n a s fypified by single-family residentia l livin g conditions ; (B ) Exposur

e t o adult s a s fypified by industria l o r commercia

l workin g conditions ; and (C ) Exposur

e t o adult s whos e occupatio n require s increase d direc t contac t wit h soi l a s fypified by atrenc h worker . (d ) Dependin g o

n condition s foun

d a t th e site , th e Departmen

t ma y requir e th e evaluatio n o f

additiona l exposur e pathway s andscenarios . ' (2 ) Risk-base dconcenfration s mus t b e develope d fo

r contaminant s o f

conce midentifie d durin g th e site characterizatio n or

othe r sit e investigatio n activities , includin g tota l petroleu mhydrocarbon s (TPH ) whe n appropriate , fo r exposur e pathway s an

d scenario s identifie d i n th e conceptua l sit e model . (a) Th e Departmen

t shall develop and maintain , in accordanc e wit h OA R340-122-0252 , atabl e of generi c risk

basedconcenfration s tha

t ma y b e use d fo

r thi s purpose ; o

r (b ) A responsibl e perso n ma y calculate site-specifi c risk-base dconcentration s b y employing contaminan

t fate , fransport, and exposur

e models . (A ) Source s of

model s an

d defaul t exposur e parameter s include : (i ) Applicabl e Departmen

t o f Environmenta

l Qualif y generi c remed

y guidanc e document s develope d pursuant t o OA R340-122-0252 ; US T Cleanu p Manua l 2 8 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (ii ) AST M Standar dGuide fo r Risk-Base d Correctiv e Actio n Applied a t Petroleu mReleas e Site s (AST

M E 1739-95) ; and (iii ) U S EP

A Ris k Assessment

Guidanc e fo

r Superfund . (B ) Th e Department

ma y approv e th e us e o f

other model s if they ar e deemed appropriat

e fo r th e propose d task . (C ) A responsibl e perso n ma y propose , subjec t

t o th e Department' s approval , th e us e of site-specifi c exposur

e parameter s in plac e o f

default exposur e parameters . (3 ) Risk-base dconcentration s fo r protectio n ofth e environment mus t b e develope d if

contaminatiorfpose s apotentia l ris k exceedin g th e acceptabl e ris k level s fo r ecologica l receptors . Unles s th e Departmen t determine s tha

t screenin g i s require dfo

r threatene dandendangere d species , screenin g fo r potentia l ecologica

l impact i s no t require d if

: (a ) Contaminate dsoil s are only present a t adept h greater than 3 fee

t belo w ground surface , or , i f present a t a shallowe r depth , suc h soil s cove

r a n are an o greater

than 0.12 5 acre ; (b ) Surfac e wate

r ha s no t bee n affected b

y th e release ; (c ) Contaminate dgroundwater doe s no t an d i s no t reasonabl y likely t o discharg e to surfac e water s or otherwis e reac h th e surfac e in amanne r tha t migh t resul t i n contac t wit h ecologica

l receptors ; and (d ) Contaminate d groundwater doe s no t an d i s no t reasonabl y likely t o com

e int o contac t wit h aquati c sediments . Sta t Auth. : OR S 465.40 0 & OR S 46 6 74 6 Stats . Implemented : OR

S 465.200-OR S 465.45 5 & OR S 466706-OR S 46683 5 Hist : DE Q 23-1998 , f

& cert , e f 11-2-9 8 340-122-025 0 Correctiv e Actio n Pla n (1 ) Subject

to sectio n (12 ) o f

thi s mle , aresponsibl e perso n proposin g t o remediat e asit e to risk-based remediatio n level s mus t

submit acorrectiv e actio n pla

n fo r respondin g t o contaminate d soil an d groundwater . (2 ) A remediatio n leve l mus t b e propose d fo

r eac h contaminant

o f conce mi n soil an d groundwate

r base d on : (a ) Site-specifi c risk-basedconcentration s calculate d accordin g t o OA R340-122-0244 , o

r generi c risk-base d concentration s develope dunder OA R340-122-0252 ; (b ) Curren t o r futur e reasonabl y likel y significant advers e effect s to beneficia l use s o f groundwate

r o r surfac e wate r no t addresse dby risk-based concentration s under subsectio n (a ) of

thi s section ; and (c ) Propose d institutional an dengineerin g controls , ifany . (3 ) Th e correctiv e actio n pla n mus t b e submitte d t o th e Departmen t within 4 5 day s of

completing field wor

k necessar y fo r it s development , o

r withi n alonger

perio d o f tim e approve d by th e Department , an d mus t contai n sufficien

t informatio n t o suppor

t th e propose d remedia

l measure s including , a

t aminimum : (a ) The site histor

y andasummar

y o f al l previou s action s take n i

n respons e to th e release ; (b ) A summar

y andanalysi s o f

all samplin g data , includin g site maps , draw n to scale , showing th e magnitude and exten t o f contamination ; UST Cleanu p Manua l 2 9 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (c ) The conceptua

l site model and a

n explanatio n fo

r each remediatio n leve

l propose d under

sectio n (2 ) of

thi s rale; (d ) Lan dan d wate r us e informatio n necessar

y to suppor

t th e conceptua

l sit e model , includin g curren

t uses , an d comprehensiv e pla

n an d zonin g designation s fo

r adjacen t properties , an

d al l propertie s potentially affecte d by th e release ; and (e ) A discussio n o f

al l remedia l measure s includin g institutiona l an d engineerin g controls , addressin g an y contaminatio n exceedin g acceptabl e risk level s an d non-ris k

impacts . (4 ) A correctiv e actio n pla

n whic h contain s aproposa l fo r groundwate

r monitorin g or

remediatio n mus t

include : (a) A recommendatio n fo

r whic h monitorin g well or

well s wil l serv e a s complianc e point s fo r th e sit e based o n th e following minimumrequirements : (A ) Complianc e monitorin g point s mus t define a n are asurroundin g th e sourc e of contamination , outside o f which remediatio n level s mus t b e attaine d and maintained . (B ) Th e complianc e monitorin g point s shall establis h avertica l boundar y extendin g fromth e uppermos t level ofth e saturate d zon e t o th e lowes t dept h whic h coul d potentiall y b e affecte d by th e release ; (C ) Complianc e monitorin g point s mus t b e locate d clos e enough t o th e sourc e o f contaminatio n s o tha

t they reasonably detec t

contamination , i f

present ; and (D ) Complianc e monitorin g point s ma y no t b e locate d beyond th e sourc e propert y boundar y excep t a s approve d by th e Department . (b ) A t leas t one monitorin g point

whic h measure s contaminant concentration s i

n th e sourc e area . (c ) A discussio n o f

al l action s bein g propose d t o monitor o r remediat e th e groundwate

r contamination . Thes e action s migh

t no t requfr e samplin g fromall well s or monitorin g fo

r all contaminant s detecte d durin g th e investigation , provided : (A ) Hydrogeologica

l and contaminatio n data , a s well a s complianc e poin t requirements , suppor

t th e well s propose dfo

r monitoring ; (B ) Appropriate indicato r

compound s ar

e analyze d a

t regula r interval s during remediatio n an d monitoring ; (C ) Analytica

l parameter s ar

e consistent

wit h remediatio n levels ; an

d (D ) Al l contaminant s o f

conce mdetecte d durin g th e investigatio n ar e sampled an

d analyze d to confir

m preliminar y an d final compliance . (5 ) The Departmen

t shal l approv e th e correctiv e actio n pla n onl y afte r ensurin g tha

t implementatio n ofth e plan , includin g an

y applicabl e remediatio n levels , wil l adequately protec t huma n health , safefy , an

d welfar e an d th e environment , an

dafte r providin g an

y publi c notic e consistent

wit h th e requirement s o f

OA R340-122-0260 .

• " - ^ _ (6 ) Upo n approva l ofth e correctiv e actio n pla n b y th e Department , aresponsibl e perso n mus t implemen t th e plan , includin g an

y modification s to th e pla

n made b y th e Department . Th e responsibl e person mus t monitor , evaluate , an

d repor t th e result s of

implementin g th e pla

n i n accordanc e wit

h aschedul e an

d i n aforma t establishe d b

y th e Department . ' US T Cleanu p Manua l 3 0 , . Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (7 ) Fo r remediatio n o f

groundwater

contamination : (a ) Preliminar

y complianc e i s attaine d when th e first samplin g even

t followin g th e installatio n o f al l require d monitorin g well s show s tha t all sample s collecte d fro

mal l complianc e monitorin g point s and ou t to th e edg e o f th e contaminan

t plum e mee t th e remediatio n level s fo

r al l contaminant s o f

concem . Whe

n preliminar

y complianc e ha s been attained , th e responsibl e perso n ma y suspend groundwate

r tteatment syste moperatio n a

t an y time . Th e Departmen

t ma y requir e tha t asuspende d groundwate

r freatment syste mb e reactivate d ifany ofth e wate r sample s collecte da

t or beyon dth e complianc e monitorin g point s durin g th e require d perio d of monitorin g ar

e foun d t o contai n an y contaminant

concentration s in exces s of remediatio n levels . I f

th e treatmen

t syste mi s reactivated , tteatment mus t b e continue d unti l preliminar y complianc e i s again attained . (b ) Fina l complianc e i s attaine dwhen : (A ) A minimumo f

fou r consecutiv e quarterl y groundwate r monitorin g event s ha s bee

n completed following shutdow n ofth e treatment

system , an

d all sample s collecte d fromall complianc e monitoring point s an d out t o Jhe edg e ofth e contaminant plum e meet th e remediatio n level s fo

r all contaminant s o f

concem . Th e fou

r consecutiv e samplin g event s ma y includ e th e samplin g even t a t whic h preliminar

y complianc e i s achieved , provide d tha

t all contaminant s o f

conce mar

e include d in th e samplin g and analysis ; (B ) Site-specifi c hydrogeologi c an d contaminan

t leve l dataar

e presente d i

n awritten repor

t t o th e Departmen

t demonsfrating tha

t an y remainin g contaminant s wil l no t migrat e beyond th e complianc e monitoring point s a t level s exceedin g remediatio n levels ; an d (C ) A final repor

t containin g asummar

y o f all groundwate

r datacollecte d a

t th e site , a n anafysi s ofth e dat a demonstratin g tha

t th e final complianc e requfrement s hav e been met , an d an y othe r relevant informatio n deeme dnecessar

y by th e Departmen

t t o demonstrate tha

t al l ofth e requirement s of

thi s ml e hav e been me

t i s submitte dt o andapprove d b y th e Department . (c ) Notwithstandin g final compliance , th e Department ma y requir e continue d monitorin g o

f groundwate

r in situation s wher

e site-specifi c condition s warrant suc h measures . (8 ) Th e responsibl e perso n mus t submit additiona l informatio n o

r develop an

d submit amodified correctio n actio n pla n at th e Department' s reques t i f th e Department

determine s tha

t remedia l activitie s mus t

b e modified o

r tha t treatment systemperformanc e (e.g. , rate o f cleanup ) i s no t

achievin g result s a s projecte d in th e approve d correctiv e actio n plan . (9 ) Whe n al l requirement s o f

a n approve d correctiv e actio n pla n hav e been me

t t o the Department' s satisfaction , th e Department

shal l issu e an o furthe

r actio n letter

t o th e responsibl e person . (10 ) I n th e even

t tha t contaminatio n exceedin g risk-base d concenfration s remains , th e Departmen t ma y require th e implementatio n of

institutiona

l o r engineerin g confrol s necessar y t o ensur e protectio n of

publi c health , safefy , an d welfar e an d th e environment . (11 ) A responsibl e perso n may , i n th e interes t

o f minimizin g environmenta l contaminatio n an

d promotin g mor

e effectiv e remediation , begi n remediatio n of soi l and groundwate

r befor e th e correctiv e actio n pla n i s approve d provide dtha

t th e responsibl e persori : (a ) Notifie s th e Department of it s intentio n t o begi n remediation ; (b ) Complie s wit

h an y condition s imposed by th e Departmen t including haltin g remediation o r mitigating advers e consequence s fro

mremedia

l activities ; and UST Cleanu p Manua l 3 1 Ma y 200 9Orego n Departmen t o f Erivironmenta l Quality - Undergroun d Storag e Tan k Progra m ^ \ \ (c ) Incorporate s th e self-initiate d remedia l measure s in th e correctiv e actio n pla n tha t i s submitte d to th e Department

fo r approval . (12 ) The requirement

tha t acorrectiv e actio n pla

n b e use d doe s no t

appl y t o low-impac t

site closures , o

r t o generi c remedie s unles s specified b y th e Departmen

t i n generi c remed

y guidance . However , th e Departmen t ma y requir e tha t a correctiv e actio n pla

n b e develope d an

d implemente d fo

r site s bein g considere d fo

r remediatio n unde

r th e soi l mafri

x cleanu p option s (OA

R340-122-0320) , a s low-impac t site s (OA R340-122-0243) , o

r unde r generi c remedie s (OA

R 340-122-0252 ) if

, upo n review o f

availabl e information , th e Departmen t determine s tha

t condition s a

t th e sit e ar e not appropriat e fo r th e initia l propose d remedia

l optio n o r th e proposa

l doe s no t provid e adequat

e protectio n to huma

n health , safefy , an

dwelfar e an d th e environment . Stat . Auth : OR

S 465.40 0 & OR S 46 6 74 6 Stats . Implemented : OR

S 465.200

- OR

S 465.45 5 & OR

S 46 6 70 6 - OR S 46 6 83 5 Hist : DE Q 29-1988 , f

& cert, e f 11-9-88 ; DE

Q 15-1989 , f

& cert , e f 7-28-8 9 (andcorrected8-3-89) ; DE Q 13-1992, f

6-9

- .92, cert, e f 10-1-92 ; DE

Q 23-1998 , f&cert.-^ef

11-2-9 8 340-122-025 2 Generi c Remedie s (1 ) Th e Department

ma y identif y o r develop generi c remedie s fo r release s frompetroleumUS T systems . (a ) Fo r purpose s o f

thi s rale, ageneri c remed

y ma y include : (A ) Generi c risk-based concentration s fo r us e i n closur e o f low-impact

sites , o r remediatio n unde

r acorrective actio n plan ; an

d , (B ) Remedia

l technologie s o

r method s fo

r us e a t eligibl e site s o

n asfreamlined basis . (b ) A generi c remed

y mus t describ e criteri amakin g site s eligibl e fo r us e ofth e generi c remedy .

. (c ) An y generi c remed

y tha t allow s fo

r implementatio n o f

specified remedia

l measure s (e.g. , tteatment technologies , excavatio n and off-sit e disposal , engineerin g confrols , institutiona l confrols ) mus t

b e base d o

n a generi c feasibilif

y stud y evaluatin g arang e o f

potentia l remedia l measure s providin g protectio n of huma n healt h an dth e environmen

t an dprotectio n o

r restoratio n o f

beneficia l use s o f waters . (d ) An y generi c remed

y tha t include s risk-base d concenfration s mus t b e base d on ageneri c risk assessmen

t documentin g th e Department' s conclusion s wit h respec t to ho w site s eligibl e fo

r us e ofth e generi c remed

y will achiev e acceptabl e risk

levels . (2 ) I n developin g generi c remed y guidance , th e Departmen t wil l provide opportunitie s fo r publi c participatio n regardin g th e scop e an

dconten t ofth e guidance . (3 ) The Departmen

t ma y approv e us e of

ageneri c remed

y a t asite i f site-specifi c information demonsfrate s tha t th e propose dgeneri c remed

y or th e complete d generi c remed y as implemented a

t th e site i s consistent

wit h Departmen

t generi c remed

y guidance . Sta t Auth : OR S 465.40 0 & OR S 46 6 74 6 Stats . Implemente

dOR S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 466.83 5 Hist : DE Q 23-1998 . f

& cer t e f 11-2-98 _ 340-122-026 0 Publi c Participatio n (1 ) The Departmen

t shall maintai n alis t

of all confirmed release s an

d ensur e tha t site releas e an

d cleanu p infonnatio n ar e mad e availabl e t o th e publi c fo

r inspectio n upo n request . UST Cleanu p Manua l 3 2 ^ Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (2 ) Fo r eac h confirme dreleas e tha t require s acorrectiv e actio n pla n unde r OA R340-122-0250 , o r tha t require s implementatio n o f

engineerin g o r

institutiona l control s fo r designatio n a s alow-impac t sit e unde r

OA R340-122-024 3 o r a s par t o f ageneric , remed y unde r OA R340-122-0252 , th e Departmen t shal l provid e notic e t o affecte d propert y owner s an dth e public . Thi s notic e ma y includ e bu t i s no t limite d t o publi c notic e i n loca l newspapers , bloc k advertisements , publi c servic e announcements , publicatio n i n astat e register , letter s t o individua l households , o r persona l contact s b y fieldstaff . (3 ) Fo r eac h confirme drelease , th e Department , upo n writte n reques t b y te n o r mor e person s o r

b y agrou p havin g te n o r mor e members , shal l conduc t apubli c meetin g a t

o r nea r th e facilif

y fo r th e purpos e o f

receivin g verba l commen t regardin g propose dremedia l activities , excep t fo r thos e activitie s conducte d unde r OA R340-122-032 0 throug h 340

- 122-0360 . (4 ) Th e Departmen t

shal l ensur e tha t

sit e releas e informatio n an d decision s concemin g complete d an d propose d pefroleu mUS T remedia l measure s ar e mad e availabl e t o th e publi c fo r inspectio n upo n request . (5 ) Befor e approvin g acorrectiv e actio n plan , th e Departmen t ma y hol d apubli c meetin g t o conside r comment s o n th e propose dcorrectiv e actio n pla n i f ther e i s sufficien t

publi c interest , o r

fo r an y othe r

goo d reason . Sta t Auth : ORS465.40 0 & ORS466.74 6 Stats . Implemented : ORS 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR

S 466.83 5 Hist : DEQ29-1988 , f

& cert , e f

11-9-88 ; DE Q 15-1989 , f

& cer t e f 7-28-8 9 (andcorrected8-3-89) ; DEQ23-1998, f & cer t e f 11-2-9 8 340-122-032 0 Soi l Matri x Cleanu p Option s A responsibl e perso n ma y elec t t o clea n u p petroleu mcontaminate d soil s accordin g t o th e procedure s an d standard s se t forth i n OA R340-122-032 0 throug h 340-122-0360 . Fo r purpose s o f

th e soi l matri x cleanu p mles , "cleanup " mean s excavatio n an doffsit e disposal , o r freatment, o f

contaminate dsoils . Whe n usin g th e numeri c soi l cleanu p standard s specifie d i n thes e rales, th e responsibl e perso n ha s th e optio n of : (1 ) Cleanin g u p th e sit e a s specifie di n thes e mle s t o th e numeri c soi l cleanu p standar d define d a s Leve l 1 i n OA R 340-122-0335(2) ; o r (2 ) Evaluatin g th e sit e a s specifie di n OA R340-122-032 5 t o determin e th e require d Matri x cleanu p level , an d the n cleanin g u p th e sit e a s specifie di n thes e mle s t o th e numeri c soi l cleanu p standar d define d b y tha t Matri x cleanu p level . ' • Sta t Auth : ORS465.40 0 & ORS46674 6 Stats . Implemented : ORS465.20 0 - ORS465.45 5 & ORS466706

- ORS466.83 5 Hist : DE Q 15-1989 . f

& cert , e f

7-28-8 9 (andcorrected8-3-89) ; DEQ23-I998 f & cert , e f

11-2-9 8 340-122-032 5 Evaluatio n o f Matri x Cleanu p Leve l (1 ) I n orde r

t o determin e aspecifi c Matri x cleanu p level , th e sit e mus t first b e evaluate d by : - (a ) Assignin g anumerica l scor e t o eac h o f th e five site-specifi c parameter s i n OA R340-122-0330(1 ) - (5) ; an d (b ) Totalin g th e paramete r score s t o arriv e a t

th e Matri x Score . (2 ) Th e Matri x Scor e mus t the n b e use dt o selec t

th e appropriat e numeri c soi l cleanu p standar d a s specifie d i n OA R 340-122-0335 .

UST Cleanu p Manua l ,3 3 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Sta t Auth : ORS465.40

0 & OR S 466.74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 466.83 5 Hist : DE Q 15-1989 . f

& cert , e f 7-28-8 9 (an d corrected 8-3-89) ; DE

Q 23-1998 , f

& cert , e f 11-2-9 8 340-122-033 0 Evaluatio n Parameter s The site-specifi c parameter s ar e t o b e scored as specified in this.section . Ifan y ofth e parameter s i n section s (1 ) - (5 ) o

f thi s ml e i s unknown , tha

t paramete r mus t b e given ascor

e often : (1 ) Dept h t o Groundwater : Thi s i s th e vertica l distanc e (rounde d t o th e neares t foot ) fromth e surfac e ofth e ground to th e highes t

seasona l elevatio n ofth e saturate d zone . Th e scor e fo r thi s paramete

r is : (a) > 10 0 feet , 1 ; \ (b ) 51-10 0 feet , 4 ; (c ) 2 5 - 5 0 feet , 7 ; (d)<25feet , 10 . (2 ) Mea n Annua l Precipitation : Thi s measuremen t ma y b e obtaine d fromth e neares t appropriat e weathe r station . The scor e fo r thi s paramete

r is : (a ) < 20 inches , 1 ; • (b ) 20 - 4 5 inches , 4 ; (c) > 4 5 inches , 10 . (3 ) Nativ e Soi l o

r Rock Type : Th e scor

e fo r thi s paramete

r is : (a ) Lo w permeabilif

y material s suc h a s clays , silf y clays , compac t

tills , shales , an

d unfractured metamorphi c an d igneou s rocks , 1 ; (b ) Moderat

e permeabilif

y material s such a s fine an d silf y sands , sand

y loams , loam

y sands , and cla

y loams ; moderately permeabl e limestones , dolomite s an d sandstones ; an

d moderatel

y fractured igneou s an

d metamorphi c rocks , 5 ; (c ) Hig h permeabilif

y material s suc h as sand s and gravels , highly fracturedigneou s an d metamorphi c rocks , permeabl e basalt s andlavas , an d kars t limestone s and dolomites , 10 . (4 ) Sensitivif

y ofth e Uppermos t

Aquifer : Du e to th e imcertaintie s involve d i n th e Matrix evaluatio n process , thi s facto r i s include dt o ad

d a n extramargin o f

safef y in situation s wher

e critica l aquifers hav e th e potentia

l t o b e affected . Th e scor e fo r thi s paramete

r is : i (a ) Unusabl e aquifer , eithe

r du e t o wate

r qualif y condition s suc h as salinify , etc. ; o r du e to hydrologi c condition s suc h a s exfremel

y lo w yield , 1 ; (b ) Potabl e aquife

r no t currentl y used fo

r drinkin g water , but

th e qualif y i s suc h tha t i t could b e used fo

r drinkin g water , 4 ; (c ) Potabl e aquife

r currently use d fo

r drinkin g water ; altemate unthreatene d source s of wate r readily available , 7 ; UST Cleanu p Manua l 3 4 Ma y 200 9- . Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m ^^_ _ (d ) Sol e sourc e aquife

r currently used fo

r drinkin g water ; ther

e ar e n o altemate unthreatene d source s of wate r readil y available , 10 . (5 ) Potential Receptors : Th e scor e fo r potentia l receptor s i s base d o

n bot h th e distanc e t o th e neares t well an d als o th e number o f peopl e a t risk. Each of

thes e tw o component s i s t o b e evaluate d usin g th e descriptor s defme d i n thi s section : (a ) Th e distanc e t o th e neares t well i s measure d fromth e are aof contaminatio n t o th e neares t wel l tha t draw s wate r fromth e aquife

r of concem . If

acloser well exist s whic h i s know n t o dra w wate r fromadeepe

r aquifer , but ther e i s n o evidenc e tha

t th e deepe r aquife r i s completely isolate d fromth e contaminate d aquifer , the n the distanc e mus t b e measure d t o th e closer , deeper well . The distanc e descriptor s are : (A ) Near , <l/ 2 mile ; (B ) Medium , 1/2- 2 miles ; (C ) Far , < 2 miles . (b ) Th e number

o f peopl e a t ris k i s t o includ e al l peopl e serve d b y drinkin g wate

r well s whic h ar

e located withi n tw o mile s ofth e contaminate darea . Fo r publi c wells , count

th e numbe

r o f user s liste d wit

h th e Oregon Healt

h Division , Drinkin g Wate

r System s Section . For

privat e wells , assum

e thre e resident s per

well . I n lie u o f adoor-to

doo r surve y o f private wells , i

t ma y b e assume d tha

t there i s one well pe

r residence . Th e numbe

r descriptor s are : (A ) Many , > 3000 ; (B ) Medium , 100-3000 ; (C ) Few , < 100 . (c ) The score fo

r thi s paramete

r i s take n fromth e combinatio n ofth e tw o descriptor s usin g th e following grid : Nea r Medium Fa r Man

y 1 0 1 0 5 Medium

1 0 5 1 Few

5 1 1 (6 ) Th e Matri x Scor

e fo r asit e i s th e su mofth e five parameter

score s in section s (1 ) - (5 ) of thi s mle . Sta t Auth : OR S 465.40 0 & OR S 466.74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 466.70 6 - OR

S 46 6 83 5 Hist : DE Q 15-1989 , f

& cert, e f 7-28-8 9 (andcorrected8-3-89) ; DE Q 46-1990, f

12-26-90, cer

t e f 3-1-91 ; DE

Q 23-1998 , f & cert , e f 11-2-9 8 340-122-033 5 Numeri c Soi l Cleanu p Standard s (1 ) I f th e Matri x Scor

e evaluate d i

n OA R340-122-033 0 is : (a ) Greater

tha n 40 , th e sit

e mus t b e cleane d u

p to a t leas t th e Level 1 standard s liste d in sectio n (2 ) of thi s mle ; (b ) From2 5 t o 40 , inclusive , th e site mus t b e cleane d u

p t o a t leas t th e Leve l 2 standard s liste d i n sectio n (2 ) o f thi s rule ; US T Cleanu p Manua l 3 5 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (c ) Les s tha

n 25 , th e sit

e mus t b e cleane d u

p to a t leas t th e Level 3 standard s liste d i n sectio n (2 ) of

thi s rule . (2 ) The following tabl e contain s th e require d numeri c soil cleanu p standard s base d on th e leve l o f Tota l Petroleum Hydrocarbon s (TPH ) a s measure d by th e analytica l method s specifie d i n OAR340-122-0218 . TP H (Gasoline ) TP H (Diesel ) Level 1

4 0 ppm 10 0 ppm Leve l 2

8 0 ppm 50 0 pp m Level 3

13 0 ppm 100 0 ppm (3 ) A sampl e o f

contaminate d soi l mus t

b e collecte d fromeac

h separat e releas e are aan

d used to identif

y th e pefroleu

m produc t contaminatio n present

a t tha t location . Th e Hydrocarbo n Identificatio n tes t specified i

n OA R340-122

- 0218(l)(c ) (NWTPH-HCID ) mus t b e use d fo

r tha t purpose . The NWTPH-HCID tes t i s no t require d fo

r pefroleu m produc t identificatio n fo

r release s fromresidentia

l heatin g oil tanks . Th e result s ofth e NWTPH-HCI D tes t mus t b e use dt b determin e which analytica l metho d o r method s ar

e require d fo

r verifyin g complianc e wit

h th e Matri x cleanu

p levels . A t location s wher

e th e soi l i s contaminate d wit h bot h gasolin e an

d diese l o r othe r non-gasolin e fraction hydrocarbons , th e gasolin e contaminatio n mus t b e shown to mee

t th e appropriate gasolin e cleanu p standar d an d th e diesel o r othe r non-gasolin e fraction contaminatio n mus t b e shown t o meet

th e appropriat

e diesel cleanu

p standard . Sta t Auth:OR S 465.40 0 & OR S 46 6 74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 466.83 5 Hist : DE Q 15-1989 , f

& cert, e f 7-28-8 9 (andcorrected8-3-89) ; DE Q 46-1990 , f

12-26-90 . cer

t e f 3-1-91 ; DE

Q 13-1992 . f 6-9-92 . cert

, e f 10-1-92 ; DE

Q 23-1998 . f

& cert , e f 11-2-9 8 340-122-034 0 Sampl e Numbe ran d Locatio n The collectio n andanalysi s o f soi l sample s i s require d to verif y tha t asite meet s th e requirement s o f thes e rules . Thes e sample s mus t

represent th e soil s remainin g a

t th e site and mus t

b e collecte d afte

r contaminate d soil s hav e been removedo r remediated . Each sampl e mus t represent asingl e location ; composit e sample s ar

e not allowed . The numbe

r o f soi l sample s require d fo

r agive n site an

d th e locatio n a

t which th e sample s are t o b e collecte d ar e a s follows : (1 ) A minimumo f

tw o soil sample s mus t

b e collecte d fromth e site : (a ) Thes e sample s mus t

b e take n fromthos e area s wher e obviousl y staine d o

r contaminate d soil s hav e been identifie dandremovedo r

remediated ; (b ) I f there ar e tw o o r mor e distinc t area s o f soi l contamination , the n aminimumof one sample mus t

b e collecte d fro meac h o f thes e areas ; (c ) Th e sample s mus t

b e take n fro

mwithi n th e first

foo t of nativ e soi l directly beneat h the area s wher

e th e contaminate dsoi l ha s been removed , or fromwithi n th e are awhere i n sit u remediatio n ha s take

n place ; (d ) A field instrament

sensitiv e t o volatil e organi c compound s ma y b e use d t o ai d in identifying area s tha t shoul d b e sampled , but

th e field datama

y no t b e substitute d fo

r laborator y analyse s ofth e soil samples ; (e ) If ther e ar e n o area s o f obviou s contamination , the n sample s mus t b e collecte d fromth e location s specifie d i n section s (2 ) - (5 ) of

thi s rale whic h ar

e mos t appropriat

e fo r th e situation ; (f ) If i t i s bein g propose d tha

t apocket of contaminatio n b e lef

t i n plac e pursuant

t o OA R340-122-0355(4) , the n sufficien t sample s mus t

b e collecte d fromth e site I n orde r t o estimat

e th e extent , volume , an

d level of contaminatio n i

n thi s pocket , and th e likelihoo d fo r th e remainin g contaminatio n to result i n unacceptabl e risk level s du e to volatilizatio n into buildings . UST Cleanu p Manua l 3 6 Ma y 200 9# y Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (2 ) I f water i s no t present i n th e tan k pit : (a ) Soil sample s mus t

b e collecte d fromth e nativ e soil s locate dno mor e tha n tw o fee t beneat h th e tan k pit i n area s wher e contaminatio n i s mos t

likely t o b e found ; (b ) For th e remova

l of a n individua

l tank , sample s mus t

b e collecte d frombeneat

h bot h end s of th e tank . Fo

r th e remova l o f multipl e tank s fromth e sam e pit , aminimumo f

on e sampl e mus t

b e collecte d fo

r eac h 15 0 squar

e fee t o f are ain th e pit . (3 ) I n situation s where leak s hav e been foun d in th e piping , o

r in whic h release d produc t

ha s preferentially followed th e fill aroun d th e piping , sample s ar e to b e collecte d fromth e nativ e soil s directly beneat h th e area s wher

e obviou s contaminatio n ha s bee n removed . Sample s shoul d b e collecte d a t 20 foo t intervals . (4 ) I f water i s present in th e tan k pit , regardles s o f

whether obviou s contaminatio n i s o r i s no t present , the Departmen

t mus t b e notifie d o f

thi s fact . Th e responsibl e perso n shall the n either continu e th e investigatio n unde r OA R340-122

- 0240 , or do th e following : (a ) Purg e th e water

fromth e tan

k pi t an d dispos e o f

i t in accordanc e wit

h al l currently applicabl e requirements . Thi s might

requir e obtainin g appropriat e permit s fromth e Departmen t o r loca l jurisdictions ; (b ) I f th e pi t remain s dr

y fo r 24 hours , testin g and cleanup ma y procee d accordin g t o th e applicabl e section s o f thes e soi l matri x cleanup rales. If wate r retum s to th e pi t

in les s tha n 24 hours , adeterminatio n mus t b e made a s to whether contaminatio n i s likely t o hav e affected th e groundwate r outside ofth e confine s ofth e pit a s indicate d below : (A ) Fo r th e remova

l o f a n individua

l tank , soi l sample s ar

e t o b e collecte d fromth e wall s ofth e excavatio n nex t t o th e end s ofth e tan

k a t th e original soil/wate r

interface . Fo r

th e remova

l o f multipl e tank s fromth e same pit , asoi l sampl e i s t o b e collecte d fromeac h o f th e fou r wall s of th e excavatio n a

t th e origina

l soil/water interface ; (B ) At leas t on e sampl e mus t

b e take n ofth e water

in th e pit regardles s o f

whethe r obviou s contaminatio n i s o r i s no t present . Thi s sampl e shall b e collecte d a s require d b y OA R340-122-0345(4) ; (C ) Th e soi l sample s mus t

b e analyze d fo

r TP H and benzene , toluene , ethylbenzene , an d xylene s (BTEX) . Th e wate r sampl e mus t

b e analyze d fo

r BTE X a t all sites , an

d fo r PAH s wher

e release s of

non-gasolin e fractions hav e occurred . Responsibl e person s ma y us e TP H analyse s o

n groundwate

r sample s a s apreliminar

y scree n fo r PAHs . Th e TP

H metho d detectio n limit

mus t b e no greate

r tha n 0. 5 ppm . An

y groundwate

r sampl e fo r whic h TP

H i s detecte dmus t

b e analyze d fo

r PAHs . Thes e analyse s mus t b e made using th e method s specifie d in OA

R340-122-0218 . Th e result s o f thes e analyse s mus t

b e submitte d to th e Department ; (D ) Th e Departmen

t shal l the n determin e how th e cleanu

p shal l proceed as specifie

d i n OA R340-122-0355(3) . (5 ) I n situation s where tanks , pumps , an d line s wil l remai n in plac e in area s o f suspecte d contamination , th e responsibl e perso n mus t

submit aspecifi c soil samplin g pla n t o th e Departmen

t fo r it s approval . (6 ) In situation s where TP

H analysi s indicate s tha

t contaminatio n i s present

du e t o areleas e fromawast e oi l tank , a

t leas t on e sampl e o f

th e wast e oi l contaminate d soil s mus t b e collecte d an

d analyze d fo

r volatil e chlorinate d solvents , volatil e aromati c solvents , andleachabl e metal s (Cadmium , Chromiuman d Lead) usin g th e analytica l method s specifie di n OA R340-122-0218( 1 )(c) . Analysi s fo r PCB s i s als o require d i f

th e contaminatio n i s fro

mawast e oil tan k other tha n on e used exclusivel y fo

r storag e o f

automotiv e waste oils . US T Cleanu p Manua l 3 7 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Sta t Auth. : OR S 465.40 0 & OR S 466.74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - OR S 466.83 5 Hist : DE Q 15-1989 . f

& cert , e f 7-28-8 9 (andcorrected8-3-89) ; DE Q 46-1990, f

12-26-90, cert

, e f 3-1-91 ; DE

Q 13-1992 . f 6-9-92, cert

, e f 10-1-92 ; DE

Q 23-1998 , f

& cert, e f 11-2-9 8 340-122-034 5 Sampl e Collectio n Method s (1 ) Th e followin g informatio n mus t b e k6pt durin g th e samplin g events : (a ) A sketc h ofth e site mus t b e made whic h clearl y show s al l ofth e sampl e location s an d identifie s eac h locatio n wit h auniqu e sampl e identificatio n code ; (b ) Each soi l an

d wate r sampl e mus t

b e clearly labele d wit

h it s sampl e identificatio n code . A written recor d mus t b e maintaine dwhich includes , but i s no t limite d to : th e date , time and locatio n ofth e sampl e collection ; th e nam e ofth e perso n collectin g th e sample ; ho w th e sampl e wa s collected ; an d an y unusua l or unexpecte d problem s encountere ddurin g th e sampl e collectio n which ma y hav e affected th e sampl e integrify ; (c ) Forma l chain-of-custod

y record s mus t

b e maintaine d fo

r eac h sample . (2 ) If soi l sample s canno t

b e safel y collecte d fromth e excavation , abackho e ma y b e use d to remov e abucke t of nativ e soil fromeac h ofth e sample areas . Th e soi l i s t o b e brough t rapidly t o th e surfac e wher e sample s ar

e to b e immediatel

y take n fromth e soil in th e bucket . (3 ) Th e following procedure s mus t b e used fo

r th e collectio n o f

soil sample s fromopen pit s o r frenches: (a ) Jus t prio r to collectin g eac h soi l sample , approximately thre e inche s of soi l mus t b e rapidly scraped awa

y from th e surfac e ofth e sample location ; (b ) T o minimiz e th e los s o f volatil e materials , i

t i s recommende d tha

t sample s b e take n usin g adriven-tub e fype ' sampler . A clea

n bras s o r stainles s stee l tub e o f

a t leas t one inch i n diamete

r an d thre e inche s i

n lengt h ma y b e use dfo r thi s purpose . The tub e shoul d b e driven int o th e soi l wit

h asuitabl e instrament

suc h a s awooden mallet o r hammer ; (c ) The end s ofth e sample-fille d tub e mus t b e immediately covere d wit h clea n aluminumfoil . Th

e foi l mus t b e hel din plac e b

y plasti c en

dcap s which ar

e the n seale d ont

o th e tub e wit

h asuitabl e tape ; (d ) Altematively , sample s ma y b e take n wit

h aminimu

mamoun t of disturbanc e and packe d immediatel y in a clea n wide-mout

h glas s ja r leavin g a s littl e headspac e a s possible . Th e ja r mus t the n b e immediatel

y sealed wit

h a teflon-line dscrew cap ; (e ) Afte r th e sample s ar

e properly sealed , the y are t o b e immediatel y place d o

n ic e and maintaine d a

t a temperature o f

no greate r tha n 4 ° C (3 9 °F) unti l bein g prepare d fo r analysi s by th e laboratofy . Al l sample s mus t b e analyze dwithin 1 4 day s o f collection . (4 ) Th e followin g procedure s mus t b e use d fo

r th e collectio n of

wate r sample s fromth e tan

k pit : (a ) Afte r th e wate r ha s bee n purge d fromth e pi t

i n accordanc e wit

h OA R340-122-0340(4)(a) , sample s shall b e collecte da s soon a s sufficien t wate r ha s retume d t o th e pi t

t o allo w representativ e sampling ; (b ) Sample s ar

e to b e taken wit

h adevic e designe d t o reduc e th e los s o f volatil e components . A baile r wit h a samplin g por

t i s suitabl e fo

r thi s purpose ; US T Cleanu p Manua l 3 8 Ma y 200 9^

Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m ' (c ) Th e water

i s t o b e fransferred into tw o identicalglas s vial s wit h a s littl e agitatio n a s possibl e an d immediately seale d wit h ateflon-line d caps . Th e vial s mus t b e filledcompletely s o tha t no ai r bubble s remain trappe d inside ; (d ) Afte r th e sample s ar

e properl y sealed , the y are t o b e immediatel y place d o n ic e and maintaine d a t a temperature o f

n o greate r tha n 4 ° C (39 ° F ) unti l bein g prepare d fo r analysi s b y th e laboratory . Al

l sample s mus t b e analyze d withi n 1 4 day s o f collection . (5 ) Th e Department

ma y approv e altemativ e samplin g method s which hav e been clearl y shown to b e a t leas t a s effectiv e wit

h respec t t o minimizin g th e los s o f

volatil e material s during samplin g an d storag e a s th e method s listed i n section s (1 ) - (4 ) o f

thi s rale. Sta t Auth : OR S 465.40 0 & OR S 46 6 74 6 . Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 466.70 6 - OR

S 466.83 5 Hist : DE Q 15-1989 , f

& cert, e f 7-28-89 (andcorrected8-3-89) ; DE Q 46-1990, f

12-26-90, cert, e

f 3-1-91 ; DE

Q 23-1998 , f & cert, e f 11-2-9 8 340-122-035 5 Evaluatio n o f Analytica l Result s (1 ) Th e result s ofth e soi l analyse s shal l b e interprete d a s follows : (a ) I f asampl e ha s aconcenfratio n les s tha n or equa l to th e require d matrix level , th e are arepresente d b y tha t sampl e meet s th e requirement s o f thes e rales; (b ) I f asampl e ha s aconcentratio n exceedin g th e require d matrix level by more tha n te n percent , th e are a represente db y tha

t sampl e doe s no t

meet th e requirement s o f

thes e mles . Furthe

r remediation , sampling , an d testin g i s necessar

y unti l th e require d leve l i s attained ; (c ) I f asampl e ha s aconcentratio n exceedin g th e require d mafri x level by les s tha

n te n percent , th e responsibl e perso n ha s th e optio n o f

collectin g an

d analyzin g tw o mor

e sample s fromth e sam

e are aan d usin g th e averag e o f al l thre e t o determin e if

th e standard ha s bee n met ; o r furthe r remediatin g th e are aand the n collectin g and analyzin g one ne w sampl e and usin g th e concentratio n ofth e ne w sampl e t o determin e i f

th e standar

d ha s bee n met . Altematively , th e Department ha s th e option s o f

approvin g th e cleanup wit

h n o furthe r action , requirin g tha

t more sample s b e taken , o

r requirin g furthe

r cleanup an

d subsequen

t sampling . Suc h adecisio n shal l b e mad e base dupo n th e analytica

l result s o f

other sample s fro

mth e site , bes t

professiona

l judgmen t

mad e fro mavisi t t o th e site , th e apparent

extent o f contamination , an

d othe r site specifi c factor s deemed appropriate . (2 ) A site shal l b e considere dsufficiently clea n when all ofth e sampled area s hav e concentration s les s tha n o r equa l t o th e require d matri x cleanup level , and whe n th e possibilif

y ofan y huma

n contac t wit h th e residua

l soi l contaminatio n remainin g on th e site ha s been precluded . (3 ) I f water i s present in th e tan k pit , th e Department

shal l decide i

f cleanu p ma y procee d unde

r thes e rule s o

r i f furthe r actio n mus t

b e take n pursuant

t o OA R340-122-0240 . Thi s decisio n shall b e base d on , but i s not limite d to : (a ) Th e apparent

extent o f th e contamination ; (b ) Th e likelihoo dtha

t groundwate

r contaminatio n exist s beyon d th e boundarie s ofth e tan k pit ; (c ) Th e likelihoo d tha

t th e BTE X concentration s in th e water an d th e BTE X an d TP H concenfration s i

n th e soil indicate asituatio n whic h pose s athrea t t o publi c health , safefy , an d welfar e o r th e environment ; an

d (d ) An y othe r site-specifi c factor s deeme d appropriate b y th e Department . US T Cleanu p Manua l 3 9 Ma y 200 9Orego n Departmen t o f Environmenta l Qualrt y - Undergroun d Storag e Tan k Progra m ^_ _ (4 ) If apocket of contaminatio n exceedin g th e require d Matrix cleanu p level i s locate d unde

r abuildin g o

r other stracture wher

e fiirther remova l woul d endange

r th e stracture o

r b e prohibitivel y expensive , th e Departmen t mus t b e notifie dof

thi s situation . The Department shal l then decide whethe r suc h contaminatio n ca

n remain without threatenin g publi c health , safefy , and welfar e o r th e environment . I f

not , th e Departmen

t shal l requir e furthe r remediation . (5 ) For wast e oi l contaminate d sites , all detectabl e level s o f volatil e chlorinate d solvents , volatil e aromati c hydrocarbons , PCBs , or

leachabl e metal s shall b e reporte d to th e Departmen t a s soo n as thes e result s ar

e known . The Departmen

t shal l the n decide whether

th e cleanu

p shall continu e unde

r thes e rales o

r whethe r furthe r investigatio n i s warrante dunder

OA R340-122-020 5 throug h 340-122-026 0 o r 340-122-001 0 through 340-122-0115 . Sta t Auth : ORS465.40

0 & ORS466.74 6 Stats . Implemented : OR

S 465.20 0 - OR S 465.45 5 & OR

S 46 6 70 6 - ORS466.83 5 Hist : DE Q 15-1989 , f

& cert , e f 7-28-89 (andcorrected8-3-89) ; DE Q 46-1990 , f

12-26-90, cer

t e f 3-1-91 ; DE

Q 23-1998 , f & cert, e f 11-2-9 8 340-122-036 0 Reportin g Requirement s (1 ) Within 6 0 day s o f

completin g wor

k a t asoil mafri

x site cleane d u

p pursuant to OA R340-122-032 0 throug h 340

- 122-0360 , or

withi n alonge

r perio d o f tim e approve d by th e Department , th e responsibl e perso n mus t submit t o th e Departmen

t afinal repor

t which mus t

contain : (a ) A narrativ e sectio n describin g ho w th e releas e wa s discovered , wha t initia l measure s wer

e take n t o confro l th e sprea do f contamination , what

wa s observe d whe

n th e tan k wa s remove d fromth e pi t

(e.g. , odor , sheen , staine d soils , hole s in tan

k o r lines) , wha

t informatio n wa s used t o scor e th e site , ho w th e cleanup was done , ho w muc h contaminate d soi l wa s removed , wha t wa s done wit

h th e contaminate d soi l an d th e decommissione d tan

k an d piping , wh o collecte d th e samples , ho w th e sample s wer e collected , stored , an

d shippe d to th e lab , and an y problem s encountere d durin g th e cleanup or sampl e collectio n process ; (b ) A site ma

p drawn t o scal e showin g relevan t information such a s th e locatio n o f tanks , lines , utilities , buildings , andothe r stmctures , excavate dsoils , samples , an d an y pocket s o f

contaminatio n lef

t pursuant t o OA R340-122

- 0355(4) ; (c ) Properl y filledout

copie s ofth e Department' s Matrix Checklis t an d Matri x Scor

e Sheet ; (d ) Al l ofth e samplin g documentatio n require d i n OA R340-122-0345 ; (e ) Copie s ofth e laborator

y report s an

d chain of custod y forms fo r al l soi l and wate

r sample s collecte d a

t th e site ; (f ) Copie s o f

all receipt s o

r permit s relate d t o th e disposa l o f free product , contaminate d soil , contaminated water , anddecommissione dtank s and piping ; (g ) A brie f explanatio n of

wha t wa s done i

n th e cas e ofan y sample s tha t initialf y exceede d th e require d cleanup levels ; (h ) A summar

y of th e concentration s measure d i n th e final roun d o f

sample s fromeach samplin g location ; (i ) I n case s wher

e groimdwate

r wa s presen

t i n th e pit , asummar

y ofth e datacollecte d an

d th e decisio n mad

e b y th e Departmen

t unde r OA R340-122-0355(3) ; (j ) I n case s wher

e pocket s of

exces s contaminatio n remain o n site in accordanc e wit h OA R340-122-0355(4) , a descriptio n o f

thi s contaminatio n includin g location , approximat e volum e an d concentration ; an

d US T Cleanu p Manua l 4 0 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m (k ) I n case s where waste oil contaminatio n require d exfr asamplin g an

d analyse s a s specifie d i

n OA R340-122

- 0340(6) , asummar

y ofth e datacollecte d and , i f appropriate , th e decisio n mad e by th e Departmen

t unde r OA R 340-122-0355(5) . (2 ) Th e responsibl e perso n shal l retai n acop y ofth e repor t submitte d to th e Departmen t unde r thi s sectio n until th e tim e o f first fransfer

ofth e property , plu s ten years . (3 ) Upo n revie w ofth e report , th e Departmen t shall : (a ) Provide th e responsibl e perso n awritte n statement that , base d upon information containe d i n th e report , th e soi l presen t

a t th e site ha s been cleane d u p i n accordanc e wit

h OA R340-122-032 0 throug h 340-122-0360 ; o r (b ) Reques t

th e responsibl e perso n t o submi t additional informatio n o

r perfor madditiona

l investigation ; o

r (c ) Reques t

th e responsibl e perso n t o conduc t additional rernedia

l actio n i n accordanc e wit

h OA R340-122-025 0 or 340-122-0252 . , Sta t Auth : ORS465.40

0 & ORS466.74 6 Stats . Implemented : OR

S 465:20 0 - . OR S 465.45 5 & OR

S 46 6 70 6 - OR S 466.83 5 Hist : DE Q 15-1989 , f

& cert, e f 7-28-8 9 (andcorrected8-3-89) ; DE Q 46-1990, f

12-26-90, cer

t e f 3-1-91 ; DE

Q 23-1998 , f & cert e f 11-2-9 8

US T Cleanu p Manua l 4 1 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 2.5 : SUMMAR Y OF EAC H RUL E Thi s sectio n summarize s eac h ofth e US T cleanu

p mles . Additiona

l information i s provide d t o clarif y how t o appl y th e mle . Althoug h thi s informatio n i s provide d to assis t you , yo u shoul d remembe

r tha t i t i s th e actua

l rule s tha t vo u ar e require d t o follow (Sectio n 2.4) , no t thi s summary . Yo

u ma y wis h t o consul t

wit h a n attomey fo

r additiona l interpretatio n or

explanation . 340-122-020 5 Purpos e Thi s simply describe s th e purpos e ofth e mle s —which i s t o set standard s and aproces s t o investigate , monitor an d clea n u p release s fromapefroleu

mUndergroun d Storag e Tan k (UST ) system—

^ an d cite s th e Oregon Statute s (law ) givin g DE Q th e authorif

y to adop t thes e mles . 340-122-021 0 Definition s The definition s of

common term s used throughou t thes e rales ar

e al l liste d here . W

e recommend tha

t yo u rea d thi s sectio n closely , a s th e specifi c wordin g o f adefinitio n ca

n sometime s mak

e asignifican

t differenc e i

n ho w t o interpret certai n rales. 340-122-021 5 Scop e an d Applicabilit y Thi s describe s th e fypes o f

release s tha

t ar e covere d b

y QA R340-122-020 5 throug h 340-122-0360 . Note tha t som e pefroleu mrelease s normally covere d under thi s portio n ofth e regulation s may , in certai n cases , b e covered unde r a differen t set o f mles : • Release s fromUS T system s containin g hazardou s substance s othe r than petroleu mar

e covered unde

r OA R 340-122-001 0 throug h 340-122-0115 . • Release s fromheatin

g oi l tank s ar e covered unde

r OA R340-177-000 1 throug h 340-177-0095 . 340-122-021 7 Requirement s an d Remediatio n Option s Thi s i s a n importan

t ml e to revie w an

d understan d becaus e i

t summarize s th e overal l requirement s fo r th e entir e se t of US T cleanup irile s an

d describe s th e option s tha

t you hav e fo

r completin g apefroleu

mcleanup . I

t basically tell s you : • Al l site s mus t

b e taken through certai n initia l phase s of wor k suc h a s initia l respons e an

d abatemen

t measures , free produc t

removal , site characterization , an d finding th e exten

t o f soi l and groundwate

r contamination . • Afte r th e initia l phase s are complete , the n anumbe r of option s ar e availabl e fo

r finishing th e cleanu

p ofth e site —low-impact

site cleanup (OA

R340-122-0243) , risk-based remediatio n carrie d ou t unde r acorrectiv e actio n pla n (OA R340-122-024 4 an

d 340-122-0250) , generi c remedie s (OA R340-122-0252) , o

r soi l mafri x cleanup (OA

R340-122-032 0 throug h 0360) . • Yo u ma y achiev e th e final remediatio n o f your site b y usin g acombinatio n ofth e option s liste d above except fo r th e low-impact

sit e option , whic h mus t

b e applie d separately . If you follo w an

dunderstandth e diagra

mgive n i n Sectio n 2.2 : Rule s Flowchart , the n you will have aver y goo d ide a of wha t thi s rale covers . It i s importan

t to kee p i n min dtha t all measure s tha

t you tak e to compl y wit h th e US T cleanu

p mle s ar e subjec t to Departmen

t revie w an d approval . Thi s i s t o ensur e tha t th e measure s take n ar

e appropriate fo

r th e sit e condition s an

d circumstance s ofth e pefroleu mrelease . Befor

e usin g non-standar

d investigatio n o

r remediatio n methods , i t

would b e i n you r bes t interes t to first ge t approva l fromth e Department . If

yo u d o not ge t prio r approval , DEQ ma

y late r rejec t you r work . Also , dependin g upo n wha t cleanup option s ar

e used , you

r action s ma

y b e subject

t o publi c review an

d commen t in additio n to Departmenta l review . US T Cleanu p Manua l 4 2 Ma y 200 9, Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 340-122-021 8 Samplin g an d Analysi s Thi s rul e list s th e requirement s an d option s you hav e fo

r samplin g an

d analyzin g soi l an

d groundwate

r sample s whe

n yo u ar e investigatin g apefroleu mrelease . Note tha

t when you ar

e first tryin g to determine th e exten t of contaminatio n you ma y choos e th e mos t

efficien t an d cost-effectiv e technique s t o investigat e you r site . However , when soi l and wate r sample s ar

e collecte dand teste d t o determin e i f your site meet s th e relevant

cleanu p requirements , the n yo u mus t us e th e method s lai d ou t

in thi s rale. Thi s i s t o ensure that yo u hav e employe d adequat e method s an

d t o provid e th e Department

wit h dataset s fromconsistent method s fo

r better compariso n o f

data . Yo u ma y propos e altemativ e samplin g an

danalytica

l method s t o DE Q t o demonstrate compliance . However , yo u shoul d get

prior approva l from DE Q or your wor k ma y b e rejected . Wha t yo u decide t o tes t

fo r wil l depen d i

n par t o n wha t metho d yo u decide to us e t p clea n u p you r site . Fo r example , i f yo u hav e afairl

y mino r releas e limite d to soi l and decid e tha t th e soil matrix i s th e bes t

optio n fo r you r site , yo u ma

y b e abl e t o investigat

e an d clea n u p th e site usin g only test s fo r TPH . I n man y case s —especially whe

n groundwate

r i s contaminate d or

when yo u are considerin g risk-based decisio n making — yo u will hav e t o tes t

fo r specifi c component s o f

pefroleu msuc h a s benzene , toluene , ethylbenzen e an d xylene s (BTEX) , o

r polynuclea

r aromati c hydrocarbon s (PAHs) . Thes e individua l pefroleu mconstituent s ar

e ofte n referred to a s "contaminant s o f concem " (COCs) . For

more informatio n about

COCs , w e recommen d tha t you refe r t o th e documen

t entitie d Risk-Base d Decisio n Makin g fo r

th e Remediatio n o f

Petroleum-Contaminate d Site s (DEQ , Septembe r 22 , 2003) . Beside s th e fypical petroleu mhydrocarbo n constituent s like BTE X an d PAHs , product s lik

e gasolin e usually contai n additive s suc h a s methy l tertiary-bufy l ethe r (MTBE) . Thi s i s fiirther complicate d by th e fac

t tha t gasolin e formulation s hav e change dover time. For example , tefraethy l lea

d (TEL) , ethylen e dibromide (EDB ) an d ethylen e dichlorid e (EDC ) wer

e use d fo r decade s in leade d gasolines , bu t hav e been phase d out

sinc e 1986 . The end result

i s tha t th e fype^ o f

COC s tha t yo u tes t fo r wil l depen d no t

only on th e produc t

fype (e.g. , gasolin e o

r diesel) , but

als o o n th e ag e ofth e release . It

i s u p t o yo u t o consider

th e histor y ofth e sit e an d wha t product s hav e been handled in th e pas t a s wel l a s th e present

when considerin g wha

t test s t o ran. ^ Rule s 020 5 throug h 021 8 specif y th e circumstance s unde rwhic h the y ar e t o b e used , defin e terms , an d provid e genera l overal l directio n wit h respec t t o remedia l option s an d testin g requirements . Startin g wit h th e nex t sectio n

—022 0 —

specifi c requirement s ar e lai d ou t fo ryo u t o Implemen t th e rules . 340-122-022 0 Initia l Respons e For ever y suspecte dor

confirme d release , yo u mus t do certai n thing s right

away , including :

• Stop th e release ; • Remov e th e potential fo r fire o r explosion ; and

• Repor t th e releas e t o DE Q withi n twenfy-fou r hours . Servic e Provider s mus t

repor t th e releas e withi n 7 2 hour s i f yo u d o not . For infonnatio n on reportin g arelease , pleas e refe r t o Sectio n 1.1 : Ho

w to Repor

t a n Underground Storag e Tan k Pefroleu mRelease .

US T Cleanu p Manua l 4 3 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m 340-122-022 5 Initia l Abatemen t Measure s an d Sit e Chec k Afte r you hav e stoppe dth e release , take n al l emergenc y measures , an d reporte d th e releas e to DEQ , yo u must : • Remov e produc t

fromth e tan

k an d pipin g a s needed ; • Kee p produc t fromspreading ; • • Tak e initia l soi l and/or

water samples ; • Sampl e fo

r vapor s o r fimies i f necessary ; • Prevent

an y hazard s tha

t ma y resul t fromth e remova

l of product , contaminate d soil s and backfill ; and

• Check whethe r free produc t

i s present . I f

free produc t

i s found , yo

u mus t remov e a s much of

i t a s possible , following OA

R340-122-0235 . Afte r takin g th e abov e measures , submi t arepor t summarizin g thes e action s t o th e appropriate DE Q regiona l office . Thi s repor t i s du e withi n twenf

y (20 ) day s afte

r th e releas e has bee

n confirmed , o

r withi n anothe

r reasonabl e perio d o f time approve db

y DEQ . Note : I f you rsit e ha s bee n assigne d a n US T Cleanu p projec t manager , chec k

wit h thi s perso n t o determin e th e appropriat e reportin g tim e fo ryou rsite . Fo ra mor e detaile d discussio n o

f how t o prepare report s an d what typ e o f Informatio n t o Include , pleas e refe rt o Sectio n 3.1 : Writin g Cleanu p Report s an d Correctiv e Actio n Plans . 340-122-023 0 Initia l Sit e Characterizatio n The next phas e ofth e investigatio n require s gatherin g information abou t you r site an d th e natur e ofth e contamination . Th e goal s o f

thi s phas e ar

e t o estimate ho w contaminate d th e soil an d groundwate

r ar e a s wel l a s to gathe

r enough information abou

t th e sit e an d it s surrounding s t o asses s th e potentia l impact ofth e release . Therefore , yo u wil l usually collec t and analyz e additiona

l soi l and/or

groundwate

r samples^ , searc h fo

r nearb y wells , locate burie d utilities , identif y critical habitat s o

r wetlands , etc . Withi n forty-fiv e (45 ) day s afte

r confirmin g th e release , o

r withi n anothe r reasonable perio d of

tim e approve d b y DEQ , yo u

. mus t submi t arepor t summarizin

g th e sit e characterization . Includ

e adescriptio

n ofth e natur

e an d quantif y ofthe releas e a s wel l a s ho w muc h produc t wa s recovered . Als o includ e adetailed sit

e pla n draw n to scal e identifyin

g adjacen t properties , buildings , tank s an

d excavations , an

d all groundwate

r wells . Dat afromal l soil an d groundwate

r sample s collected durin

g th e initia l sit e chec k an d the sit e characterizatio n shoul

d als o b e included i

n thi s report . Note: I f you rsit e ha s bee n assigne d a n US T Cleanu p projec t manager , chec k

wit h thi s perso n t o determin e th e appropriat e reportin g tim e fo ryou rsite . I n som e cases , I t ma y b e appropriat e t o submi t onl y on e combine d repor t I n plac e o f th e 20-da

y an d 45-da

y reports . 340-122-023 5 Fre e Produc t Remova l Remove all free product

(i.e. , unconfine

d pefroleu mproducts o

n the groun

d o r i n water ) discovere d durin g th e initia l abatemen t measure s as soo

n as possible fromall tan

k excavations , pits , ditches , wells , an d an y othe r locations . Remov

e no t onl y the free product

tha t yo u ca n readil y pump , but

als o an y product tha t yo u ca n remove using absorben

t materials . Fo

r recen t releases , yo

u ma y significantl

y reduc e th e sprea

d o f contaminatio

n if yo u tak e quic k actio n a t the outse t an d tak e ou t as muc h free produc

t as yo u ar e able to remove . Thi s ma

y mak e late r cleanu p effort s easie r an d les s costly . Includ

e i n you r

^ So d samples ar

e typicall y teste d fo r TP H and, i f ris k i s bein g considered

, als o fo r likel y contaminants . Groundwate r samples ar e usuall y teste d for constituents . Se

e Sectio n 3.3 : Analytica

l Requirements . UST Cleanu p Manua l 4 4 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Program 45-da y sit e characterizatio n repor

t informatio

n abou t th e typ e an

d thicknes s of

produc t found , how muc

h product was recovered , an

dwha t you didwit

h it . Afte rcompletin g th e initia l sit e characterization , yo u shoul d revie w al l availabl e dat a abou t you rsit e an d conside rth e following : I f yo u stil l d o no t kno w th e ful l exten t o rdept h o f th e soi l contamination , o ri f groundwate rma y have bee n contaminate d an d yo u nee d t o determin e th e exten t ofth e contaminan t plume , the n yo u must continu e wit h a n Investigatio n fo rth e magnitud e an d exten t o f contaminatio n a s directe d b y OA R 340-122-0240 . I f yo u have enoug h Informatio n abou t th e locatio n an d compositio n o f al l ofth e petroleu m contaminatio n o n you r site , the n yo u ar

e read y t o thin k

abou t wha t cleanu p optio n t o chose : • ' • Soi l matri x cleanu p (OA R 340-122-032 0 throug h 0360) ; • Risk-base d decisio n makin g propose d unde ra con-ective actio n pla n (OA R 340-122-024 4 an d OA R 340-122-0250) ; • Generi c remed y (OA R 340-122-0252) ; • An y combinatio n o f th e abov e thre e options ; o r • Low-impac

t sit e cleanu p (OA R 340-122-0243) . 340-122-024 0 Investigatio n fo rMagnitud e an d Exten t o f Contaminatio n A s mentione d in th e tex t

bo x above , yo u mus t

appl y thi s rul e if

th e information gathere d durin g th e initia l site characterizatio n (OA

R340-122-0230 ) i s no t

sufficien t t o describ e th e fiill exten

t ofth e pefroleu

mcontaminatio n a

t your site . Th e goal , obviously , i s t o complet e your investigatio n fo

r th e ful l magnitude and extent

o f bot h soi l an d groundwate

r contamination . Thi s ma

y require tes t

pits , soi l borings , pus h probe s and/or installin g monitorin g well s t o collec t soi l andgroundwater

samples . Soi l ga s analysi s or gra b sample s fromwell-point s ma y als o b e helpfu

l i n surveyin g th e extent

ofth e contaminant

pUime . At

afairly complex site , yo

u ma y nee d t o perfor

mthi s phas e ofth e investigatio n i

n anumbe r o f steps . The contaminant s tha t yo u mus t tes t fo r depen d o n th e fype o f

pefroleu mproduct o r product s release da

t you r site . Pleas e refe

r t o th e discussio n unde

r OA R340-122-021 8 fo

r mor e informatio n abou

t th e fypes o f sample s an

danalyse s tha

t ma y b e required . Note : Groundwate rsample s must b e collecte d an d analyze d fo rth e appropriat e contaminant s a t site s where soi l contaminatio n extend s dow n to , o rI s i n clos e proximit y of , th e seasonall y hig h wate rtable . Becaus e mos t petroleu m product s are les s dens e tha n water , th e wate rtabl e act s a s a confinin g laye rtha t restrict s th e downward migratio n o f th e petroleum . Dependin g o n th e locatio n o f you rsite , th e wate rtabl e ma y fluctuat e u p t o 1 0 fee t seasonally . As th e wate rtabl e drops , i t ca n effectivel y leav e th e contaminatio n hangin g withi n th e vados e zone . Whe n assessin g th e vertica l exten t o f soi l contamination , a rapi d declin e i n TP H level s ca n indicat e tha t yo u ar e withi n th e zon e o f groundwate rfluctuation . Therefore , som e knowledg e o f loca l hydrogeologi c condition s i s necessar y befor e yo u ca n detemnin e tha t groundwate rhas no t bee n Impacte d b y th e release . Durin g your

investigation , b e awar

e tha t man y pefroleu mcleanup site s als o contain contaminatio n fromleaking wast e oi l tanks . Use d crank-cas e oi l ofte n contain s hig h concentration s of heav y metal s an

d aromati c hydrocarbon s such a s benzene . Wast

e oil tank s hav e ofte

n als o bee n use d t o dispos e of chlorinate d solvent s and othe r non-pefroleu

m products . I f

yo u findtha

t your site als o include s waste oi l contamination , yo u mus t do othe r test s i n additio n t o th e usua l HCI D an dTP H tests , namely , yo u mus t

collec t a t leas t one sampl e o f

heavily contaminate d soi l an d tes t i t usin g approve d EP

A SW-84 6 method s for :

US T Cleanu p Manua l 4 5 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Progra m

• BTEX ; • PAHs ; - > . • Volatil e chlorinate dsolvents ; and • Toxicif

y Characteristi c Leachin g Procedur e (TCLP ) fo

r cadmium , chromiu

mand lead . If th e wast e oi l tan k ha s been use d fo

r purpose s othe

r tha n storin g automotiv e waste oils , yo u mus t als o tes t fo r Polychlorinate dBiphenyl s (PCBs) . Ifan y o f thes e contaminant s ar

e detecte d i

n asampl e fromyou

r site , pleas e discus s thi s situatio n wit

h th e appropriat

e regiona l US T Cleanu

p projec t manage r to decide ho w t o proceed . If non e ofth e abov e contaminant s i s detected , analysi s fo r Tota l PetroleumHydrocarbon s (Metho d NWTPH-Dx ) wil l usuall y b e sufficien t fo r an y subsequen

t soi l sample s fromth e wast e oi l area . Fo ryou rinvestigatio n t o b e complet e , i t mus t revea l th e ful l horizonta l an d vertica l exten t o f th e soi l an d groundwate rcontamination , bot h on-sit e an d off-site . Furthermore , relevan t numerica l dat a fro m th e sit e must cleari y suppor t th e reporte d magnitud e an d extent . Thi s I s critica l t o th e succes s o f you rproject . I f th e Investigatio n repor t I s incomplete , DE Q wil l reques t furthe r Investigation . A n Incomplet e sit e investigatio n I s probabl y th e most commo n mistake mad e a t US T cleanu p sites . Afte rth e Investigatio n I s complete , the n yo u must decid e what rnetho d o rrhethod s yo u wan t t o us e t o remediat e you rsite . You roption s are discusse d I n th e followin g rules . 340-122-024 3 Low-Impac t Site s The purpos e ofth e low-impac t site (LIS ) optio n i s t o provide asfreamlined proces s fo r us e a t operatin g ga s station s o

r othe r industria l o r commercia

l properties . Thi s optio n allow s thes e facilitie s to remain in operatio n whil e you manag e an y potentia l risk fromcontaminatio n remainin g a t th e site . Th e LI S optio n i s designed t o b e use d onl y a t site s tha t mee t certain requfrements . The sit e requfrement

s ar e Uste di n OA R340-122-0243 ( 1) . Not

e tha t som e ofth e requirement s ar

e not cleanu p requfrements , but

pertain to propert

y us e an d ho w sever e th e releas e is . I

f thes e requfrements ar

e not met , the n th e sit e canno t taken through th e LI S option . Fo r example , i f th e properf y i s being sold or

developed fo

r residentia l use , the n th e LI S cleanu

p option cannot

b e used . Thi s optio n i s onl

y fo r commercia

l o r industria l facilitie s tha

t pla n to remain i

n business . Thi s could includ e certain govemmen

t facilitie s wher

e children ar

e no t routinely presen

t suc h a s highwa

y o r forest servic e facilitie s an

d prisons . Mos t ofth e remainin g requfrements in OAR340-122-0243(1 ) ar e cleanu p requirements . In othe

r words , i f they ar e no t met , thi s doe s no t

ml e out th e us e ofth e LI S option . I t simpl y mean s tha

t you mus t tak e th e necessar

y remedia l action s to mee t thes e requirement s befor

e yo u ca n clos e th e sit

e unde r th e LI S option . For

example , i f

yo u hav e gasoline

contaminate dsoi l a

t your site that exceed s 100

0 ppmTPH , the n thi s soi l mus t b e freated o

r remove d s o tha

t wha t remain s doe s mee

t thi s requirement . In som e case s yo u ma y decide t o us e institutiona l or engineerin g site confrol s (i.e. , risk management

) instea d o f actually cleanin g u

p th e soil s or

groundwate

r t o th e acceptabl e cleanup levels . If yo u decid e to propos e usin g sit

e confrols , you should tal

k to the appropriat

e US T Cleanu

p project manage r abou t thei r application an

d possible consequences . DEQ require s dee d restriction s on you

r properf y to ensur e tha t th e confrol s remai

n i n force . If yo u us e sit e confrol s o

n you r property , yo

u mus t notif y DEQ ofan y futur

e change s to th e properf

y tha t migh t affec t thes e confrols . Also , publi c notic e wil l b e required i

f institutiona

l o r engineering confrol s sit

e ar e needed t o mee t th e cleanu p requirements . See Section 3.4 : Sit e Confrol s fo

r mor e informatio

n o n thi s topic . US T Cleanu p Manua l 46 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m A s wit h an y ofth e cleanup options , you ar e require d t o submi t

arepor t to DE Q documentin g th e wor k carrie d out

a t th e site . Carefully revie w an d follow th e LI S reportin g requirement s liste d i n OA R340-122-0243(3) . Fo

r mor e detaile dinformatio n about th e LI S cleanup option , includin g achecklis t an d descriptio n o f

wha t t o include in aLI S Report , pleas e refe

r to Guidanc e fo r

Applyin g th e Low-Impac t

Sit e Rule t o US T Cleanup Site s (DEQ , Januar y 20 0 8) . 340-122-024 4 Risk-Base d Concentration s Thi s sectio n ofth e rule s define s th e basi c requirement s fo r developin g an

d applyin g risk-base d concenfration s (RBCs ) to se t cleanup level s fo

r your site . I f yo u inten d t o apply RBC s a t your site , yo u ma y either us e generi c number s from table s prepare d b y DEQ , or calculate site-specifi c RBCs . Th e table s of generi c RBC s ar

e no t include d in th e mles , but ca n b e foun d in Appendi x A o f

Risk-Base d Decisio n Makin g fo r the Remediatio n o f

Petroleum-Contaminate d Sites . (DEQ , Septembe

r 22 , 2003) . Befor e you ca n apply an

y RBCs , eithe

r generi c or

site-specific , you mus t

develop aconceptua

l sit e model , whic h includes : , • A descriptio n o f

al l know n o

r suspecte d source s o f

contamination ; ' • A n evaluatio n o f

ho w an dwher e th e contaminant s are likely to mov e ("pathways") ; and

• A n assessment

o f wh o o r wha t i s likely t o b e affecte d b y th e contaminant s ("receptors") . Developin g aCS M require s no t onl y athoroug h investigatio n o f th e contaminatio n (wha

t kind , ho w much , an d where) , bu t

als o informatio n about

climate , geolog y and hydrogeolog y a s well a s loca l land an d wate r uses . Th e goa

l ofth e CS M i s t o us e everythin g you kno w about your site t o sho w th e contaminatio n sources , exten t and magnitude o f contamination , concentratio n trends , an d asummar y o f pathway-specifi c risk s a

t th e site . Ris k

pathway s migh

t be ' summarize di n atabl e o

r flow char t and shoul d b e accompanie d wit h supporting documentation . A n example o f

arisk pathwa y i s "Th e benzen e i n thi s soil ma y pos e arisk

t o downgradient

resident s by leachin g int

o th e groundwate

r an d contaminatin g th e drinkin g water. " Th e specifi c requirement s fo r th e CSM , includin g th e pathway s an d exposur e scenario s tha

t yo u shoul d consider , ar

e given in OA

R3 40-122-0244 ( 1) . The contaminant s tha t you shoul d include are covere din OA

R340-122-0218. * Thes e ar e sometime s referre d t o a s th e contaminant s o f potentia l conce m(COPCs) . Fo r more detai l o n ho w t o develop aCSM , se e Risk-Base d Decisio n Makin g fo r th e Remediatio n o f

Petroleum

Contaminate d Site s (DEQ , Stptemhe r 12,2003) . Afte r yo u hav e complete d th e CSM , yo u nee d t o determin e a n appropriat

e RB C fo r each contaminan

t b y each o f your ris k pathways . Usin g th e exampl e in th e previou s paragraph , yo u would nee d to determin e asoi l concenfration fo r benzen e tha

t woul db e lo w enoug h s o that yo u are no t

likel y t o create a

n unacceptabl e ris k

t o downgradien

t resident s who us e th e groundwater

fo r drinkin g water . Althoug h yo u ma y us e eithe

r generi c or

site-specifi c RBCs , DE Q recommend s tha

t yo u alway s star

t by screenin g th e lis t

o f contaminant s foun

d a t you r site usin g th e tabl e of

generi c RBC s mentione d above . Continuin g wit

h th e exampl e o f

benzene leachin g t o groimdwater , th e DE Q Tabl e of RBC s list s 0.04

4 mg/k g (44 ppb ) as th e RB C fo

r thi s combinatio n of

contaminant , pathwa

y an d receptor . If

benzen e in th e soi l a

t you r sit e doe s no t excee dthi s concenfration , the n no remediatio n woul d b e necessar y fo r th e benzene-contaminate d soil fo r thi s pathwa

y (i.e. , leachin g t o groundwater and bein g consume d a s drinkin g water) . I f i t doe s excee d thi s concenfration , the n th e benzen e woul db e referre d t o a s acontaminant o f conce m(COC ) an

d you hav e th e optio n o f

• Calculatin g asite-specifi c RB C t o determin e i f ales s stringent

.standar d ca n b e applie d a

t thi s site ; or

* OA R340-122-218(2

) allow s th e Departmen

t t o request testin g fo r additiona l contaminant

s no t liste d i n th e rule i f conditions warrant For alis t o f contaminant

s tha t ma y b e require d a

t you r sit e pleas e refe

r t o th e Tabl e o f RBC s i n Appendi x A o f Risk-Base dDecisio n Makin g fo r th e Remediatio

n o f Pefroleum-Contaminate

d Sites (DEQ

, Septembe r 22 , 2003) . UST Cleanu p Manua l 4 7 . , Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

• Cleanin g u

p th e benzen e contaminatio n in th e soi l s o tha t no remainin g contaminatio n exceed s th e 44 pp b generi c standard ; o

r _ • Usin g institutiona

l an d engineerin g control s to reduc e risk i n thos e area s wher

e th e soi l concentratio n exceed s th e risk-basedconcenfration . Note : I f yo u propos e usin g Institutiona l controls , yo u mus t Includ e enoug h discussio n t o sho w ho w risks ar e avoide d ove rtim e an d unde ral l likel y circumstances . Yo u migh t d o thi s throug h modelin g o rtesting . Thi s coul d requir e analysi s o f suc h thing s a s th e characteristic s ofth e shallo w aquife ran d ho w likel y i t i s t o becom e contaminated ; or . I f groundwate rwer e t o becom e contaminated , ho w likel y I t woul d b e t o trave l off-site . Se e Sectio n 3.4 : Sit e Control s fo rmor e informatio n o n Institutiona l an d engineerin g controls . Each relevant

combination s o f

contaminants , pathway s and receptor s a t you r site mus t b e evaluate d in thi s fashion . I f th e concenfration s detecte d a t your site ar e lo w enough tha

t they do no t

excee d an y ofth e generi c RBCs , th e easies t wa y t o clos e th e site ma

y b e to us e th e Department' s Generi c Remed y fo r Simple Risk-Base d Cleanups . Information , applicabilif

y an d reportin g requirement s about thi s generi c remed

y ca n b e foun d i n Sectio n 4. 0 ofth e documen t Risk

Base dDecisio n Makin g fo r the Remediatio n o f

Petroleum-Contaminate d Site s (DEQ , Septembe r 22 , 2003) . I f you decide t o calculat

e site-specifi c RBCs , DE Q recommend s tha t yo u star t b y following th e proces s used fo r th e generi c RBCs . Thi s i s explaine d i n detai l in Appendi x B of Risk-Base d Decisio n Makin g fo r th e Remediatio n o f Petroleum-Contaminate dSite s (DEQ , Septembe r 22 , 2003) . Suggestion s fo r site-specifi c calculation s ar e als o provide di n tha t document . Afte

r yo u hav e calculate d site-specifi c RBCs , compar e you r sampl e datato thes e RBCs . I f concenfration s a

t you r site do no t

excee d th e site-specifi c RBCs , then you ma y wan t t o propos e tha

t th e site b e closed . I f contaminan

t level s excee d th e site-specifi c RBCs , your option s ar e to perfor madditiona

l cleanup , o r

t o conside

r usin g institutiona

l an dengineerin g confrol s t o reduc e risk a t th e site . The RBC s mentione d abov e ar e use d t o evaluate potentia

l risk t o huma n health . Befor

e your sit e ca n b e close d under th e risk-based optio n yo

u mus t als o sho w tha

t there are n o unacceptabl e risks t o ecologica l receptor s (e.g. , wetlands) . For mos t fypical ga s statio n site s thi s wil l only requir e tha t you screen you

r sit e wit h th e fou r condition s liste d i

n OA R 340-122-0244(3) . If

you r site doe s no t

meet al l o f thes e screenin g requirement s yo u ma y b e asked t o carr

y out abasi c ecologica l ris k assessment . Mor

e informatio n about

thi s fype o f

assessmen t ca n b e foun d i n Guidanc e fo r

Ecological Risk Assessmen

t - Level I : Scopin g (DEQ , 1998) . (Se e Sectio n 5. 2 fo r th e we b addres s o f

thi s document. ) All risk-based cleanups , excep t fo r thos e tha t ar e close d unde

r th e generi c remed

y mentione d above , ar

e require d to : • B e submitte d to th e Departmen t in acorrectiv e actio n pla

n (OA R340-122-0250) ; an

d

• Receiv e publi c notic e befor e final approva

l (OA R340-122-0260) . For mor e informatio n abou

t conceptua l site model s an

d risk-base d concentrations , includin g table s o f generi c RBCs , an dguidanc e fo

r calculatin g site-specifi c RBCs , pleas e refe r t o Risk-Base d Decisio n Makin g fo r the Remediatio n o f Petroleum-Contaminate d Site s (DEQ , Septembe r 22 , 2003) . A flowchart

whic h show s th e step s an

d option s in th e risk-baseddecisio n makin g proces s i s provide d on th e next pag e fo r you r reference . Als o se e Sectio n 5.2 : Additiona l Guidanc e Document s fo

r mor e informatio n on institutiona l confrols , lan

d us e an d beneficia

l wate r use .

UST Cleanu p Manua l 4 8 ' Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

N o Complet e sit e investigatio n an d

refin e conceptua l sit e model .

7 Doe s sit e mee t ecologica l risk screenin g requirements ? 

# '"-"""'^^ 1 Finaliz e conceptua l sit e mode l an d scree n COPCs . 

# i Prepar e lis t o f chemical s o f potentia l concem .

• f D o an y concentration s excee d generi c RBC s fo rCS M pathways ?



# - 1 I s remediatio n t o generi c RBC s cost-effective/practicable ? Ye s

r Submi t con-ectiv e actio n pla n wit h propose d RBCs , remedia l actions , an d institutional/engineerin g controls .

Implemen t CAP .

_ f I s continue d monitorin g required ?

N o r C Publi c Notic e ^ ^ \ N o Furthe rActio n y Risk-Base ( N o

N o ^ N o ^

N o

Ye s

N o

Ye s

i Decisio n l y ' r KE Y 1 Require d Tas k

| 1 Decisio n Poin t | Q En d Poin t Chec k wit h DE Q abou t ecologica l risk

assessment . : )

/ ^ Conside rusin g generi c remed y ^ \ \ fo rsimpl e risk-based cleanups . y D o sit e condition s diffe rfro m default s use d t o calculat e generi c RBCs ?

- • ; " Calculat e site-specifi c RBC s to rrelevan t pathway s an d COCs .

' \ D o an y concentration s excee d site specifi c RBC s fo rCS M pathways ? Yes 4 I s remediatio n t o site-specifi c RBC s cost effective/practicable ? N o X I s a bette rmode l available ? Di d yo u ge t approva l fo rus e fro m DEQ ? N o

Ye s

Conduc t monitorin g t o confin n tha t complianc e goal s hav e bee n met .

/fakin g Flowchar t UST Cleanu p Manua l 4 9 Ma y 200 9Orego n Departmen t ofEnvironmenta l Qualit

y - Undergroun d Storag e Tan k Program 340-122-025 0 Correctiv e Actio n Pla n Th e UST Progra m has receive d man y question s an d comment s abou t what t o Includ e i n correctiv e actio n plan s (CAPs) . Peopl e ofte n assum e tha t CAP s mus t b e long , comple x reports . Althoug h suc h a documen t woul d b e appropriat e fo ra comple x site , w e woul d like t o mak e i t clea rtha t a CA P shoul d b e n o more comple x tha n th e site . I t shoul d tel l u s what happened , what yo u did , wha t you rgoal s (cleanu p levels ) are , an d how yo u propos e t o reac h you rgoals ; I t shoul d includ e sufficien t informatio n t o describ e an d suppor t you rproposa l a s wel l a s demonstrat e t o u s tha t wha t yo u pla n t o d o wil l likel y work . A smal l sit e ma y onl y nee d a 5-1 0 pag e CA P wherea s a larg e sit e ma y nee d a 50-10 0 pag e CAP . Don' t skimp , bu t don' t overd o I t Thi s rul e list s th e informatio n tha t you mus t include i n acorrectiv e actio n pla n (CAP) . Yo

u wil l hav e to submit

aCA P whe n yo u ar e proposin g t o use : • Site-specifi c RBC s a s your cleanu p levels ; and/o r • Institutiona

l or engineerin g confrol s t o reduc e exposur e t o contaminant s a

t your site . W e ma y als o require you t o prepar e aCA P i n certai n othe

r case s dependin g o

n site conditions. ' In you r CA P yo u shoul d tel l u s ho w you wil l respon d t o each CO C i n contaminate d soi l and groundwater . Th e main thin g to keep in mindi s tha t th e CA P mus t adequatel y describ e th e sit e an d wha t was , foun d there , and include sufficien t informatio n t o suppor

t th e proposa

l tha t yo u ar e making . Relatively complex site s ma y requir e adetaile d CAP . However , CAP s fo

r relativel y simpl e site s ma y b e quit e shor t an d no t significantly differen

t tha n wha t you woul dsubmit

fo r asoi l matri x or

low-impac t

site . Th e mai n differenc e i s likel y to b e tha t th e CA P wil l nee d t o include informatio n about

wh y yo u eliminate d certai n pathways , ho w you calculate d site-specifi c RBC s an d ma y als o include adiscussio n ofth e propose dengineerin g o r institutiona

l confrols . Man y CAPs submitted i

n the pas t have bee n considered incomplete . DEQ retums thes e wit h requests fo

r mor e information . T o avoi dthi s difficulf

y an d delay s i n cleaning u

p you r site , kee p i n min d the thre e followin

g importan t points : 1 . Yo u shouldn' t submi t a CA P unti l yo u hav e determine d th e ful l magnitud e an d exten t o f al l contaminatio n (soil , groundwater , surfac e water , an d vapor s bot h on - an d off-site) . Mak e sur e that th e numerica

l dataan d figure s fromyour

sit e clearly suppor

t an y statement s mad

e about th e extent o f contamination . An

y CA P submitte d without

first determinin g th e magnitude an d extent o f soil and groundwate

r contaminatio n wil l b e considere d incomplete . In som e case s yo u ma

y asked t o begi n developin g aCA P whil e you complet

e th e delineatio n o

f soi l an d groundwate

r contamination . Thi s reques t i s generally made i f

th e initia l site characterizatio n indicate s som e for mo f correctiv e actio n i s necessar

y although th e fiil

l scop e ofth e remediatio n projec t i s stil l unknown . I t i s no t necessary t o wai t unti l a CA P i s approve d i n orde rt o perfor m correctiv e actions , unles s implementatio n ofth e correctiv e actio n carrie s additiona l huma n healt h risk s tha t mus t b e evaluated . Becaus e environmenta

l cleanup s ar

e complex , i

t ma y tak e along tim

e to mov e you

r site throug h th e necessar

y regulator y steps . I t i s no t unusua l fo r delay s to occu

r whil e you ar

e preparin g arepor

t o r whil e w e ar

e reviewin g it . Durin g thi s time , however , th e contaminatio n a t your site ma y continu e to move , makin g i t mor e difficul t an d expensiv e t o clea

n up . Therefore , throughout th e cleanu p process , you ar

e not onl y allowed (OA

R340-122-0250 ( 11) )

' CAP s ar e no t required for

soil matri x o r low-impac t site, cleanu p projects . The

y ma y als o no t b e required i

n certai n generic remedies , bu

t yo u shoul drefe r t o th e specifi c generic remed

y guidanc e t o se e wha t typ e o f reportin g i s required . US T Cleanu p Manua l 5 0 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m but als o encourage d t o take step s to limit the environmenta

l impac t ofth e contaminants . Note , however , tha t yo u mus t notif y DEQ abou t

suc h activities , compl

y wit h an y condition s DE Q ma

y impose , and incorporat

e an y step s you tak

e int o you r CAP . Fo r example , vapor

extractio n system s and recover y well s ma

y b e operatin g befor

e submittin g th e CAP . Thes e action s shoul db e describe d i n your CAP . 3 . A CA P mus t includ e enoug h desig n an d tes t dat a t o sho w tha t th e pla n i s adequat e fo rit s purpose . Th e CA P shoul d demonstrate , usin g tes t data , tha t action s bein g take n ar

e likel y t o b e effective . Fo

r example , recover

y well s or vapo r exfractio n system s shoul d hav e enoug h field dat at o sho w tha t they cove r th e entire contaminate d are a an doperat e effectively . Specifi c requirement s fo

r submittin g progres s report s durin g implementatio n ofth e CA P ar e no t liste d i n th e rules . You shoul d discus s progres s repor t requirement s wit

h th e appropriate regiona

l US T Cleanu

p projec t manager . Fo

r mor e informatio n o n writin g CAP s an d othe r reports , pleas e refe

r t o Sectio n 3.1 : Writin g Cleanup Report s an d Correctiv e Actio n Plans . Note : Sinc e investigation s an d cleanup s ten d t o b e conducte d I n phases , i t i s importan t t o submi t report s t o DE Q a t appropriat e intervals . 340-122-025 2 Generi c Remedie s Thi s rul e authorize s th e DE Q t o develo p "generi c remedies " fo r pefroleu mcleanups . A generi c remed y i s acleanu

p optio n designe d t o apply t o aspecifi c group o f cleanup project s wit

h simila r propertie s or

characteristics . In developin g ageneri c remedy , th e Departmen t mus t see k publi c input

an d review befor

e publishin g th e final document . However , developin g ageneri c remed y i s not arulemakin g action , and generi c remedie s ca n b e mor e easil y modified (afte r publi c review ) i f

informatio n change s ove

r time . Unlik e th e other

mle s discusse d above , ther e i s nothin g in thi s particula r rul e tha t applie s to yo u whe

n cleanin g u

p your site . Wha t yo u do get

ou t of thi s rule , afte

r w e develo p them , ar

e sfreamline

d approache s t o cleanup tha t ca n b e applie dt o certai n categorie s o f sites . S o fa r w e hav e develope d tw o generi c remedie s tha t apply t o pefroleum-contaminate d sites : • Generi c Remed

y fo r Simple Risk-Base d Cleanups , whic h ca n b e foun d i n Sectio n 4. 0 ofth e documen t Risk

Base dDecisio n Makin g fo r the Remediatio n o f

Petroleum-Contaminate d Site s (DEQ , Septembe r 22,2003) ; an d

• Heatin g Oi l Tan

k Generi c Remed

y Guidanc e Document

(DEQ , Update d Augus t

2007) . Pleas e refe

r t o thos e document s fo

r th e specifi c detail s o f

eac h generi c remedy . 340-122-026 0 Publi c Participatio n Publi c participatio n i s a

n important

par t ofth e US T Cleanup program . Thi s rul e implement s th e statutor y requiremen

t fo r DE Q t o maintai n alis t

o f al l confirmed US T releases . Yo u ma y reques t acopy o f thi s lis t fromDEQ , or

find i t o n ou r we b site . I f areleas e require s aCorrectiv e Actio n Pla n (OA R340-122-0250 ) o

r implementatio n o f

engineerin g or

institutiona

l confrols , w e mus t

notif y potentiall y affected properf y owner s an

d th e genera

l public . Notic e ma

y b e given i

n variou s ways , bu t usuall y include s publishin g apres s releas e or requirin g th e responsibl e perso n to notif y adjacen t properf y owners . I n addition , DE Q ma

y hold publi c meeting s t o infor mintereste d person s ofth e action s propose d ort o hea r comment s fromth e publi c about aspecifi c cleanu

p project . UST Cleanu p Manua l 5 1 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 340-122-032 0 SoilMatri x Cleanu p Option s Th e soi l mafri

x cleanu p optio n i s covere d b

y rule s OA

R340-122-032 0 throug h 340-122-0360 . A s implied b y it s name , thi s optio n i s designe donl y fo r soils . However , i f

your sit e ha s bot h soi l and groundwate

r contamination , yo u ma y choos e t o us e th e soi l matrix optio n fo r th e soil s an

d anothe r option , suc

h a s th e risk-based concenfrations , fo r th e groundwater . Unde r thi s optio n yo

u mus t first decid e whether

to : • Choos e th e mos t

stringen t soi l mafri x cleanu p level , i n which cas e yo u don' t

hav e t o d

o asite-specifi c evaluation ; o

r • Evaluate you

r sit e a s outline d in th e rule s and us e th e resultin g soil mafri x cleanup level . Yo u migh t decid e t o immediatel

y choos e th e mos t

stringent cleanu p level t o avoi d havin g t o determine site-specifi c evaluatio n factor s suc

h a s dept h to groundwate

r o r nativ e soi l fype. Anothe

r reaso n t o chos e th e mos t

stringen t cleanu p level migh t b e t o tr y t o minimiz e an

y potentia l futur e liabilif y a t th e site . I n mos t cases , however , yo

u will probably wan t t o determin e asite-specifi c cleanu p level t o potentiall y reduc e your cleanu p costs . 340-122-032 5 Evaluatio n o f Matri x Cleanu p Leve l Thi s par t ofth e matrix rule s tell s yo u ho w to determin e th e require d soi l cleanu p level fo r you r site . First , yo

u mus t assig n score s t o th e five site-specifi c factor s liste d in OA R340-122-0330 . The

n compar e your total scor e to th e tabl e given in OA

R340-122-0335 . . - 340-122-033 0 Evaluatio n Parameter s Th e five site-specifi c parameter s that yo u mus t

evaluate t o calculate you r soi l matri x score ar

e dept h t o groundwater , mean annua l precipitation , nativ e soi l fype, sensitivif y o f th e uppermos t

aquifer , and potential receptors . Many peopl e ma y think i t bes t t o hir e alicense d Soi l Matri x Servic e Provide r to d o th e wor k fo r them . However , i t

shoul d no t

b e necessar

y t o perfor

man y specifi c scientifi c test s t o evaluat e thes e site-specifi c parameters . In mos t

cases , th e desire d informatio n i s readil y available . For example :

• Dept h t o groundwater : Tal

k t o th e owne

r o f anearb y shallo w wel l o

r cal l th e loca

l Wate r Maste r o r aloca l wel l driller . • Mea n annua l precipitation : Call th e Nationa l Weathe r Service . (Note : You shoul d NOT reduc e th e rainfall amount fo r you r sit e jus t becaus e your

properf y i s paved. )

• Nativ e soi l types : Examirie thes e material s when you di g u p th e tank . • Sensitivit

y ofth e uppermos t

aquifer : Tal k

t o th e loca

l Wate r Master , th e Healt

h Departmen

t or th e Wate r Resource s Department . • ' Potentia

l receptors : Estimat

e by obtainin g informatio n abou t well s in th e are afromth e loca l Wate r Master , th e Wate r Resource s Department , o

r b y askin g peopl e i

n th e neighborhoo d if

they hav e privat

e wells . 340-122-033 5 Numeri c Soi l Cleanu p Standard s Thi s rul e tell s you wha

t you r soi l cleariii

p level i s base d on you

r site' s mafri

x scor e an d o n th e fype o

f pefroleu m produc t tha t wa s released . Afte

r you hav e evaluate d th e five parameter s fo r your site , assig n th e prope

r scor e to eac h one . Then total th e score s an d us e themt o determin e whethe r th e sit e i s Level 1, 2 or

3 a s explaine d i

n sectio n (1 ) o f th e rule . T o determin e th e require d cleanu p level , you mus t

als o kno w and prove , b

y mean s of

specified analytica

l methods , th e natur

e ofth e petroleumcontamination. . T p accomplis h this , you mus t collec t asampl e of

obviously US T Cleanu p Manua l 5 2 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m contaminate d soi l and hav e i t analyze d usin g th e Department-approve d Hydrocarbo n Identificatio n Tes t (Metho d NWTPH-HCID) . Afte

r yo u kno w th e produc t

fype, yo u ca

n us e th e tabl e i

n sectio n (2 ) o f

thi s rul e to se

t you r soi l matri x TP H cleanup level . If th e contaminatio n bein g cleane d u p on your properf y i s from:

• Gasolin e spill s o

r releases , you mus t

us e th e gasolin e cleanup level s liste d i n th e table . • Diesel , heatin g oil , or

som e othe r non-gasolin e pefroleumproduc t covere d b

y th e rules , yo u ma

y us e th e diese l cleanup levels . • A mixture o f

gasolin e an

danon-gasolin e produc t

suc h a s diesel , then th e gasolin e componen t mus t mee t th e gasolin e cleanup level s an

d th e non-gasolin e component mus t mee t th e diese l cleanup levels . • Wast e oil , yo u mus t

first d o som e additiona

l testin g befor

e you ca n us e amatri x cleanup optio n a t your site . Se e OA R340-122-0340(6 ) fo

r th e additional test s require d fo r contaminatio n fromwast

e oi l tanks . Note : DE Q doe s no t recommen d no rrequir e th e us e o f specifi c cleanu p methods . Fo rmino rreleases , th e quickes t an d leas t expensiv e cleanu p metho d ma y simpl y b e remova l an d prope rdisposa l ofth e contaminate d soil . However , a s landfill s clos e an d tippin g fee s Increase , othe roption s ma y nee d t o b e considered . 340-122-034 0 Sampl e Numbe ran d Locatio n The soi l matri x optio n wa s designed a s asfreamline d proces s fo

r closur e whe n dealing wit

h asimple , soil-onl

y site . A s previously stated , however , i t ma y b e used i n combinatio n wit

h othe r option s a t mor e comple x sites . Most

simple soi l matrix cleanup s receiv e littl e o r n o DE Q oversight . Therefore , i t i s importan

t tha t yo u collec t enough sample s fromth e proper location s s o tha

t when we review you

r repor t w e hav e enough information to decid e if th e wor k ha s bee n completedcorrectly . Otherwis e yo u ma y have t o tak

e equipmen

t an d personne l back o n sit e to collect th e sample dat

ayo u need . Thi s ml e lay s ou

t th e sampling requirement s fo r th e soi l matrix option . Th e simples t

site s wil l fypically requir

e only tw o soi l samples , collecte d i n nativ e soi l jus t

beneat h eac h end ofth e tank . Bu t thi s wil l b e sufficien

t only i f there i s littl e or

n o obviou s contamination . I f yo u find contaminatio n that exceed s th e soi l mafri

x cleanu p leve l fo

r your site , yo u mus t

remov e o r

clea n u p th e mos t

obviously staine d o r contaminate d soils , andthe n collec t additiona l sample s fromthos e areas . Mos t site s wil l probably requir

e mor e tha n tw o samples . For

example , i f

yo u hav e cleane d u

p severa l distinc t area s of contaminatio n o

n your site , you mus t

take a t leas t one discrete sampl e fromeach area . Also , i f pipin g ha s no t

been remove d durin g excavation , yo u mus t sampl e belo w th e pipin g a

t 20-linear-foo t

interval s and unde

r dispenser islands . I f th e tan k pi t contain s water , yo

u mus t follo w specia l requirements . First , pum p th e wate r fromth e pit . Then , i f water retum s t o th e pi t

withi n twenfy-fou

r hours , yo u mus t

collec t awate r sample . Yo

u shoul d collec t

th e sampl e a s soo n a s enoug h water

ha s retume d t o th e pit

t o allo w yo u t o us e th e samplin g device . In thi s situation , yo u mus t als o collec t soi l sample s fromth e wall s ofth e pit , a t th e level where th e wate

r wa s first foun d befor e you pumped i

t out (/.£. , at th e soil-water

interface) . Th e require dtest s in thes e case s are : • Soil sample s mus t

b e teste d fo

r tota l petroleu mhydrocarbon s (TPH) , usin g th e analytica l metho d fo

r th e fype o f contaminatio n a

t th e sit e (e.g. , gasoline , diesel , waste oil , etc.) ; an d fo r benzene , toluene , ethylbenzen e and total xylene s (BTEX) .

US T Cleanu p Manua l 5 3 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

• Wate r sample s mus t

b e teste d fo

r BTE X a t aminimum . Becaus e of

concem s about

fue l additives , we hav e als o been askin g fo

r MTB E testin g in wate

r sample s a

t mos t sites.' " A

t site s wher

e diese l o r othe r non gasolin e product s hav e been released , you shoul d als o tes t fo r polynuclea

r aromati c hydrocarbon s (PAHs) . Note : Th e soi l matri x optio n allow s yo u t o us e TP H analyse s o n groundwate rsample s a s a preliminar y scree n fo r PAHs . Th e TP H metho d detectio n limi t mus t b e n o greate rtha n 0. 5 ppm . An y groundwate rsampl e fo rwhic h TP H i s detecte d mus t b e analyze d fo rPAH s b y th e method s specifie d i n OA R 340-122-0218 . Althoug h thi s ma y b e a usefu l scree n fo rver y simpl e sites , a t mor e comple x site s wher e risk question s ma y aris e yo u wil l b e bette rof f havin g th e actua l PA H results . Fo rthi s reason , w e normall y recommen d tha t yo u ski p th e scree n an d tes t directl y fo rPAHs . I f yo u encounte r

contaminatio n fromawast e oi l tank , you mus t follow specia l requirements . Whe n ther e i s a releas e from awast

e oi l tank , yo

u mus t collec t asampl e ofth e contaminate d soi l and tes t i t fo r th e presenc e o f

non pefroleu mcontaminant s suc

h a s volatil e chlorinate d solvents , leachabl e metal s (cadmium , chromium , an d lead) , and , in som e cases , PCBs . Note tha

t thi s mus t b e a n obviously contaminate d sample . Yo u shoul d tr

y t o obtain asampl e fromth e mos t

contaminate d are a("wors t case " sample) . The purpos e o f thi s sampl e i s t o identif

y constituent s in th e wast e oi l contamination , no t

to confir mtha t yo u hav e reache d aparticula r cleanup level . Yo

u mus t prov e to th e Departmen

t tha t ther e are no non-petroleumcontaminant s in th e releas e of wast e oil i n orde r to get approva l t o us e soil matri x cleanup level s fo

r wast e oil contamination . 340-122-034 5 Sampl e Collectio n Method s Yo u mus t collec t soi l an dwate r sample s in way s tha

t wil l no t caus e volatil e compound s to b e release d to th e air . Therefore , a s yo u collec t

th e samples , distur

b th e soi l a s littl e a s possible . Collec t an d stor e al l sample s individuall

y in prope r containers , an dstor

e themimmediately on ice . Composit e samples " ar e no t acceptable . Yo

u mus t als o carefull y label eac

h sample , mar

k it s locatio n on asit

e diagram , recor

d th e nam e ofth e sampl e collector , not e an y unusua l condition s tha

t yo u encounte

r durin g sample collection , an d us e prope

r chain-of-custod

y procedures . I f you intendt o collec t

your ow n samples , yo u shoul d contac t th e laborator

y tha t wil l analyz e your

sample s an

d ge t th e prope r samplin g equipment . Th e laborator y wil l usually als o b e abl e to giv e you tip s o n collectin g sample s a s well a s on logging , handling , storing , filtering, and transportin g th e samples . Mak e sur e tha t you fill out

chain-of-custody . forms fo r all o f you r samples . Proper

handlin g an

d documentatio n ar

e critical . I f

there ar e doubt s about

th e sampl e collectio n method s use d a

t your site , you ma

y b e require d t o collec t

and analyz e anothe

r set o f samples . 340-122-035 5 Evaluatio n o f Analytica l Result s Whe n th e result s of

your sampl e analyse s com

e back fromth e laboratory , yo

u shoul d examine th e dat at o determine i f your site meet s th e require d soi l matri x cleanu p standards . Thi s wil l usually requir e only asimpl e compariso n ofth e la b result s to th e site-specifi c soi l matrix cleanu p level . However , you should contac t th e appropriate regiona

l US T Cleanu p projec t manage r to discus s ho w bes t

t o procee d if

: • Wate r sample s analyze d are foun d to contai n detectabl e level s of BTE X and/or MTBE ; o r • Wast e oil contaminate dsoi l sample s ar e foun d t o contai n detectabl e level s o f BTEX , volatil e chlorinate d hydrocarbons , PCB s o

r leachabl e metals . I f contaminatio n remain s a

t aconcentratio n greate

r tha n th e calculate d numeri c soi l cleanup level , you will usually hav e to perfor

madditiona

l cleanup . Whe

n you thin k th e contaminatio n ha s bee

n adequately cleane d up , anothe r round

' " I f yo u hav e aquestio n abou t MTB E testing , chec

k wit h aUS T projec t manage r a t th e appropriat

e regiona l office . " Composit e samples ar

e mad e u p b y mixin g severa l samples fro

mdifferen t location s int

o on e final sample . Suc

h mixin g o f samples i s no

t allowed . US T Cleanu p Manua l 5 4 Ma y 200 9' Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

of sample s wil l b e require d t o confir mtha t th e final level s ar

e withi n acceptabl e limits . Confirmatio n sample s must b e analyze d usin g th e appropriate TP H tes t method. '

( • . • , Sometime s pocket s o f

contaminatio n exceedin g th e soi l matri x cleanup level s ar e locate d unde

r building s o

r i n othe r location s where fiirther

cleanup woul d b e expensiv e relativ e t o th e risk posed b y th e contamination . I

n suc h cases , yo

u ma y b e abl e t o ge t

permissio n fro

mDE Q t o leav e thi s contaminatio n i n place , a s specifie d i n OA R340-122-0355(4) . T o d o thi s yo u wil l usuall y hav e t o collec t additiona l sample s t o determine wher e th e remainin g contaminatio n i s located , and estimate bot

h th e volume an

d averag e concenfration o f

contaminatio n in th e "pocket " tha t yo u would lik

e to leav e on site . Remainin g contaminant concentration s in th e pocke t mus t no t excee d th e generi c risk-base d concenfration s liste di n Appendi x A of Risk-Base d Decisio n Makin g fo r the Remediation o f

Petroleum-Contaminate d Site s (DEQ , Septembe

r 22 , 2003) . I f

th e concentration s excee d th e RBCs , yo u ma y n o longe r b e abl e t o us e th e soi l matri x optio n fo

r tha t portio n ofth e site . Yo

u shoul d refe

r t o OA R340-122-021 7 Requirement s and Remediatio n Option s or

contac t th e appropriate regiona

l US T Cleanup projec t

manage r to discus s ho w t o proceed . 340-122-036 0 Reportin g Requirement s Whe n soi l mafri

x wor k a t th e site ha s bee

n completed , yo u mus t

submit arepor t t o DE Q a s describe d in thi s rule . Th e repor t mus t includ e awritte n descriptio n of al l activitie s tha

t too k plac e a t th e site , an

d other necessar y item s suc

h a s a sit e map , copie s o f

laborator y datasheets , an

d complete d matri x scor

e shee t an d checklist . You mus t

submi t thi s repor t to u s withi n 6 0 day s o f

completin g th e wor

k a t your site . Becaus e soi l matri x site s are fypically cleane d u p wit h littl e or n o oversigh

t b y DEQ , US T Cleanu

p projec t manager s depen dheavil y on informatio n i n th e matrix repor

t t o determin e i f

wor k ha s been don e properly . If you submit incomplet e reports , i t

wil l caus e delay s i

n completin g wor

k a t your sit e an d ma y requir e yo u t o take mor

e soi l sample s o r collec t other missin g data . Pleas e carefull y revie w th e requirement s of OA R340-122-036 0 and refe

r to othe r section s of thi s cleanup manua

l fo r th e matrix checklis t

an d scoreshee t

an d additiona

l informatio n on writin g reports . Afte r aregiona l US T Cleanup projec t

manage r ha s been assigne d t o you

r projec t (refe r t o Sectio n 1.7 : Cos t

Recover y fo r Departmenta

l Oversight

Wor k fo r informatio n o n ho w project s ar e assigned) , th e final repor

t wil l b e reviewed an

d yo u wil l b e notifie dwhether : • N o furthe

r actio n i s necessar

y a t your site ; • Mor e informatio n mus t

b e submitte d befor

e adecisio n ca

n b e made ; or • Contaminatio n remain s tha t i s outside th e scop e ofth e soi l matrix optio n an d you mus t

selec t anothe r cleanu p optio n fo r par t o r all o f you r sit e (se e OA R340-122-0217) .

US T Cleanu p Manua l 5 5 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Program SECTIO N 3 : US T CLEANU P GUIDANC E SECTIO N 3.1 : WRITIN G CLEANU P REPORT S AN D CORRECTIV E ACTIO N PLAN S The US T cleanup mle s require yo u t o submit report s t o DE Q a

t ke y point s durin g th e investigatio n and cleanu p o f pefroleu mreleases . Thes e report s rang e i n complexif

y fromth e sfraight-forwar

d summar y of initia l respons e an

d abatemen t measure s (th e "20-day " report) , to th e detaile d presentatio n of acorrectiv e actio n pla

n (CAP) . Pleas e remembe r tha t som e documents , suc h as quarterly reports , ca n b e sfreamline

d a s long a s the y contain all th e require d elements . Thi s sectio n ofth e US T Cleanu p Manua l provide s suggestion s to hel p you prepar

e report s an

d CAPs . If yo u follow thes e suggestion s your US T Cleanu

p projec t manage r shoul d b e able t o revie w your repor t mor e quickly . Note : Thi s i s no t th e onl y guidanc e documen t tha t contain s infonnatio n o n writin g reports . Othe rsource s o f Informatio n are : • A summar

y o f reportin g requirement s fo rlow-Impac t site s ca n b e foun d I n Sectio n 3.4. 2 o f Guidanc e fo r Applyin g th e Low-Impac t Sit e Rul e t o US T Cleanu p Site s (DEQ , Januar y 2008) . A checklis t I s als o include d i n Appendi x C o f tha t documen t t o provid e yo u wit h additiona l assistance . • Informatio n o n developin g a CA P fo rrisk-based site s ca n b e foun d i n Sectio n 3.2.3. 2 o f Risk-Base d Decisio n Makin g fo rth e Remediatio n o f Petroleum-Contaminate d Site s (DEQ , Septembe r22 , 2003) . • Th e reportin g requirement s forth e generi c remed y fo rsimpl e risk-based cleanup s ar e give n i n Sectio n 4. 4 o f Risk-Base d Decisio n Makin g fo rth e Remediatio n o f Petroleum-Contaminate d Site s (DEQ , Septembe r 22 , 2003) . 3.1.1 : Genera l Informatio n Whe n preparin g areport , kee

p in mind tha

t you r repor t must : • Provid e up-to-date statu s abou t condition s a

t th e sit e s o tha t w e ca n decide i f

th e wor k bein g done i s acceptabl e and i f

action s bein g propose d ar

e bot h reasonabl e an

d appropriate ; and

• Standa s apermanent

recor d tha t will remain in th e Department' s files and ca n b e reviewe d b

y intereste d partie s who wan

t t o kno w wha

t cleanu p activitie s too k

plac e a t you r site . Fo r thes e reasons , i

t i s importan

t tha t eac h repor t b e independent . I

n othe r words , whe

n aserie s o f

report s ar e submitted ove r tim e fo r agive n site , i t should no t

b e necessar

y to rea d all previou s reports to obtain a n overview of

wha t has bee n don e a t th e sit e sinc e th e releas e occurred . Thi s doe s no t mea n tha t yo u wil l have t o repea

t everythin g contained i

n previou s reports , but

i t doe s mea n tha t pas t activitie s discussed i

n detail i n earlie r report s shoul d b e summarized i n subsequen t reports . Yo

u ma y nee d t o repea

t certain item s frompas t

report s i f the y ar e essentia l t o th e discussion i

n th e curren t report . Fo r example , t o describ e frends, yo u wil l alway s nee

d to includ e acomplet

e listin g of bot h ol d an d ne w data . I n general , however , muc

h informatio

n fromearlie

r report s ca n b e summarize

d an d specifi c reference s provided t o thos e report s in cas e th e reade r want s to loo

k u p th e detail s o

n acertai n item .

US T Cleanu p Manua l .5 6 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 3.1.2 : Generi c Repor t

Outlin e Yo u shoul d consider

th e outlin e belo w to b e a n exampl e o f

wha t woul d b e neede d in arepor t fo r arisk-base d site . Mos t report s wil l no t

require all ofth e informatio n liste d below . Th e tabl e i n th e nex t sectio n ha s been develope d t o help yo u decid e wha

t fypes o f informatio n t o includ e in th e differen t report s tha

t ar e du e a t variou s stage s o f

th e cleanup process . ~

1 .

II . III .

IV . V .

VI .

Vl l ii . Iii . 1

Generi c Repor

t Outlin e Tabl e o f Content s Lis t o f Figure s Lis t o f Table s Introductio n A . B . C . D . Progres s Summar

y Sit e Descriptio n Backgroun d Sit e Map s 1 . Genera l Locatio n Ma p 2 . Detaile d Sit e Pla n Regiona l an d Loca l Geolog y an d Hydrogeolog y Technica l Informatio n A . B . C . Soi l an d Groundwate rSamplin g Subsurfac e Investigatio n Fiel d Test s Result s A . B . Presentatio n o f Dat a Discussio n an d Analysi s o f th e Result s Conceptua l Sit e Mode l A . B . C . Source s Exposure Pathways Receptor s Correctiv e Actio n Measure s A . B . C . D . Cleanu p Option s Contaminant s o f Conce m an d Risk-Base d Concentration s Cleanu p Action s Alread y Take n Future Cleanu p Activitie s

. Conclusion s VIII.Supportin g Documentatio n (Appendices ) IX . Reference s

UST Cleanu p Manua l 5 7 Ma y 200 9Orego n Departgien t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 3.1.3 : Minimu mReportin g Requirement s A s mentione din th e previou s section , thes e guideline s ar e mean t to appl y to awide yarief

y of US T Cleanu

p report s a s wel l a s correctiv e actio n plans . Therefore , no t ever y topi c liste d o

n th e generi c repor

t outlin e o n th e previou s pag e will b e appropriat

e fo r ever y report . However , unles s otherwis e directe d bv th e US T Cleanu p projec t manage r assigned to your site , yo u mus t

cove r th e following topic s when preparin g report s associate d wit h th e stage s ofth e US T cleanu p mle s liste d below : Fo rreport s on : Initia l Respons e an d Abatemen t Measure s (20-day report ) Initia l Sit e Characterizatio n (45-day report ) Investigatio n fo rMagnitud e an d Exten t o f Contaminatio n Quarteri y Report s (e.g. , groundwate rmonitorin g reports ) Correctiv e Actio n Pla n Soi l Matri x Cleanu p Report s Includ e th e followin g section s fro m th e mai n outlin e i n ' Sectio n 3.1.2 : i-il i I.A , I.Bandl. D I V VII-I X i-il l 1 III.A , an d III. B I V an d V VII-I X i-ii l l- V VII-I X . i-ii l 1 II I an d I V VII-I X i-ii l l-I X l-ll i LA , I.Ban d I. D III. A Vl l an d VII I Matri x scor e shee t & checklis t Th e specifi c informatio n tha t yo u mus t include fo r each ofth e require d topic s i s discusse d i n th e next section . Pleas e refe r t o tha t sectio n fo r guidanc e when preparin g your report s an d CAPs . Ifan y ofth e require d information caimo t b e obtained , yo u mus t

include astatemen

t to tha t effec t i n your report . If you omi t require d information becaus e i t seems irrelevant t o your site , yo u mus t include arational e fo

r thi s omissio n i

n you r report . Remember : the complexit y ofth e site an dth e stag e ofth e investigatio n determine s the complexit y ofth e repor t Note : I f yo u hav e an y question s abou t wha t Item s mus t b e Include d I n you rrepor t o rwha t leve l o f detai l i s necessary , pleas e contac t th e appropriat e regiona l US T Cleanu p projec t manager .

US T Cleanu p Manua l 5 8 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 3.1.4 : Materia l t o Includ e i n Report s an d Correctiv e Actio n Plan s Th e guidanc e presente dbelo w list s th e specifi c item s t o includ e i n variou s section s o f you r reports , an d discusse s ho w som e ofth e materia l shoul d b e presented . Explanator y materia l i s presente d i n regula r fype. Subject s yo u shoul d conside r including , dependin g o n th e condition s a t you r site , ar e liste d i n italics . Fo r eas y reference , th e openin g page s o f al l report s an d CAP s shoul d include : Tabl e o f Content s Lis t o f Figure s Lis t o f Table s Signatur e Pag e (includ e licensin g information , professiona l stamps , an d othe r

relevan t informatio n abou t

th e author s o f

thi s document. ) L INTRODUCTIO N Th e infroductor y section s o f arepor t shoul dprovid e asummar y o f pertinen t historica l informatio n a s wel l a s a descriptio n o f

th e site . Th e sit e descriptio n shoul d b e complet e enoug h s o tha t aperso n wh o ha s neve r visite d th e locatio n ca n follo w argument s mad e i n th e repor t a s wel l a s anticipat e th e potentia l impac t ofth e releas e o n th e loca l health , safefy , welfar e an dth e environment . A . Prosres s Summar y Yo u mus t

includ e anarrativ e sectio n summarizin g th e wor k don e a t th e sit e sinc e th e releas e wa s detected . Thi s sectio n shoul dgenerall y b e writte n fo r anon-technica l audience . Th e technica l detail s shoul d b e discusse d late r i n a separat e technica l section . Fo r portion s ofth e projec t

tha t hav e bee n previousl y reported , abrie f overvie w shoul d suffice . Wher e needed , b e sur e t o includ e reference s t o previou s reports . Th e narrativ e shoul d provid e amor e detaile d discussio n o f

wor k complete d sinc e th e las t report . Th e stag e ofth e projec t

an dth e content s o f

previou s report s wil l determin e whic h item s ar e summarize d briefl y an d whic h ar e discusse di n detai l i n th e summar y section . However , yo u shoul d fypically include : Ho w th e curren t

releas e wa s detecte d (routin e decommissioning , etc.) ; Wha t produc t wa s released ; Result s o f

a n US T inventor y reconciliatio n o r othe r estimat e ofth e volume ofth e release ; Summar y o f

an y previou s wor k

don e a t th e sit e relate dt o th e curren t releas e before you r

involvemen t

(suc h a s decommissionin g wor k

o r initia l cleanu p wor k

b y anothe r

contractor) ; Initia l abatemen t

measure s tha t

wer e taken ; Observation s mad e whe n th e tank s wer e remove d suc h a s colo r o f soil , odor , produc t

age , hole s in tank , etc. ; Location s o f

observe d contamination ; Quantit y o f

fre e produc t

recovered ; Wha t yo u hav e don e t o determin e i f ther e i s an y potentia l vapo r impac t fro mth e sourc e a s wel l a s fro man y contaminate d material s (soil , water , fi-e e product ) remove dfi'o mth e ground ; Approximat e volum e ofal l contaminate dsoil , fre e produc t o r groundwate r

remove d fi'o mth e site , an d wha t wa s don e wit h them ; Wha t wa s don e wit

h th e decommissione d tank s an d associate dpipin g (ifunuse d pipin g wa s no t removed , explai n wh y not) ; Descriptio n o f

activitie s t o monito r

contaminant s (tes t

pits , soi l borings , wel l installations , soi l gas , etc.) ; Descriptio n o f

ho w yo u di dth e cleanup , e.g . al l activitie s t o remov e contaminant s (excavation , pumping , vapo r extraction , etc.) ; Descriptio n ofan y unusua l condition s o r problem s encountered ; an d Descriptio n o f

wh o collecte dth e samples , ho w the y wer e collected , stored , an d shippe d t o th e laboratory . UST Cleanu p Manua l 5 9 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergr"oun d Storag e Tan k Progra m I f appropriate , yo u shoul dals o includ e adiscussio n ofan y legal o r publi c relations/informationa l activitie s relevan t t o th e site . B . Site Descriptio n You r repor t shoul ddescrib e you r

site , th e immediatel y adjacen t propertie s an d th e genera l surroundin g area . Include :

• The addres s an dlocatio n o f th e property ; • The siz e an ddimension s ofth e property ; • The lega l descriptio n ofth e property ; • Natura l an dman-mad e feature s o n theproperty ; • Use s ofth e adjacen t

properties ; • The wate r

supplie s fo r

are aresident s an dfacilities ; an d • An y importan t

natura l o r

man-mad e feature s nea r th e property , suc h a s streams , wetlands , wells , sewe r lines , burie d o r overhea dutilit

y line s (includ e approximat e distance s fi'o mth e sit e t o thes e features) . C . Backgroun d Backgroun dinformatio n shoul dprovid e relevan t histor y abou t

th e sit e befor e th e discover y ofth e release . Include :

• Importan t

pas t use s o f thepropert y (pain t

shop , bod y shop , etc. ) tha t ma y hav e cause d som e ofth e contamination , includin g th e years , i f

known , durin g whic h th e propert y wa s use d fo r suc h purposes ; • A summar y o f

al l pas t complaint s (vapors , wate r i n tank , etc. ) abou t

thi s propert y includin g an y Notice s o f Noncomplianc e o r

Notice s o f

Violatio n issue d b y th e Department ; • A summar y o f

pas t release s (wha t

happene d an dwha t

wa s done) ; • Curren t

us e o f property ; an d • Curren t

owner s an doperator s o f th e property/facility . D . Site Map s T o complet e th e descriptio n ofth e site , includ e a t leas t tw o map s i n you r

report . 1 . Genera l Locatio n Ma p Thi s ma p shoul dsho w wher e th e sit e i s locate d withi n th e cif y o r genera l surroundin g area , an d include :

• Name s o f

majo r streets ;

. • Locatio n o f

th e site ; • Locatio n o f

well s potentiall y affecte d b y th e releas e includin g well s liste d wit h th e Orego n Water

Resource s Departmen t

an dwell s identifie ddurin g field surveys ; • Locatio n o f

nearb y surfac e waters , wetlands , an d othe r environmentall y sensitiv e areas ; an d • • Locatio n o f

an y othe r

importan t

feature s discusse d i n th e repor t suc h a s possibl e off-sit

e source s o f contaminatio n o r

receptors . • A north-directio n arro w (wit h nort h a t th e to p o f

page , i f possible ) Thes e item s shoul db e highlighte do r clearl y marke d i n som e wa y o n th e map . 2 . Detaile dSit e Pla n

- Thi s ma p shoul dhav e adetaile dvie w ofth e sit e an db e draw n t o scalerMeasurin g distance s t o th e neares t foo t shoul d b e sufficient . Surveyin g wil l usuall y no t b e necessary , excep t

yo u wil l nee d t o surve y fo r wellhea d elevation s at

groundwate r

sites . Thi s ma p mus t

include :

UST Cleanu p Manua l 6 0 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m Propert y boundaries ; Name s o f surroundin g street s an d propertie s (includin g us e o f adjacen t properties) ; Building s an dothe r

man-mad e features , suc h a s canopies , walls , well s an d al l burie d utilities ; Importan t

natura l features , suc h a s hills , drainag e ditches , surfac e water ; Curren t an dforme r

tanks , both abov e an dbelo w ground , a s wel l a s pipin g an d dispensers ; Area s o f know n o r suspecte d release s o r

existin g contamination ; Sampl e collectio n site s includin g sample s take n durin g decommissionin g o r durin g previou s stage s ofth e investigation ; Monitorin g well s an dpus h prob e hole s (show n in precis e locations) ; Excavations , an y stockpile dsoi l al l remainin g soi l contamination ; an d Othe r relevan t detail s mentione di n th e tex t o f you r repor t Al l detaile dmap s mus t

includ e ascale , ake y t o symbol s used , anorth-directio n arro w (wit h nort h a t th e to p o f page , i f possible) , and , whe n known , th e directio n o f groundwate r

flow.

n . REGIONA L AN D LOCA L GEOLOG Y AN D HYDROGEOLOG Y Includ e informatio n discussin g relevan t feature s o f

th e regiona l an d loca l geolog y an d hydrogeology . Initia l sit e report s ma y includ e mostl y genera l informatio n obtaine dfrompublishe d reports . B y th e tim e yo u submi t aCAP , yo u shoul dhav e don e enoug h studie s t o includ e detaile d site-specifi c information . Include : Th e climate ; i Th e regiona l an dloca l geology ; Th e loca l topograph y an dothe r feature s tha t

ma y contro l surfac e an d subsurfac e flow ; Discussio n o f

majo r surfac e drainage s i n th e vicinity ; Loca l soi l typ e an dcharacteristics ; Regiona l groundwate r

flo w direction ; Dept h t o firs t

groundwate r

an dseasona l fluctuations ; Genera l descriptio n o f

deepe r aquifer s includin g potentia l o r know n connectio n t o othe r aquifers ; Groundwate r

qualit y an dus e o f

loca l aquifers ; Natur e o f aquife r material s includin g permeability , transmissivity , an d porosit y o f potentiall y affecte d aquifers ; Th e magnitud e an ddirectio n o f vertica l an dhorizonta l gradient s a s wel l a s th e mean velocit y o f contaminate d o r potentiall y contaminate dgroundwater ; Seasona l variation s in groundwate r flo w directions ; an d Appropriat e maps . Map s shoul d b e include dshowin g wate r tabl e elevations , groundwate r contours , an d groundwate r flow direction s fo r aquifer s o f

interes t i n th e vicinif

y ofth e site . Wel l location s shoul d b e clearl y show n t o scal e o n thes e maps . m . TECHNICAL INFORMATIO N Yo u shoul ddiscus s al l aspect s ofth e wor k a t acleanu p sit e i n th e Progres s Summar y sectio n o f areport ; howeve r

th e technica l detail s no t

immediatel y relevan t

t o tha t discussio n ar e bes t

covere d separatel y i n a"Technica l Information " section . Som e topic s bes t handle di n thi s wa y are : A . Soi l an dGroundwate r Samplin g Wheneve r

sample s ofan y kin dar e collected , yo u mus t discus s th e complet e samplin g program . Samplin g ma y b e th e mos t critica l par t

ofth e wor k

don e a t you r sit e an d shoul d b e ver y carefull y planne d BEFOR E an y sample s ar e taken . T o avoi dcommo n problem s tha t occu r i n investigatin g pefroleum-contaminate d sites , mak e sur e tha t you : UST Cleanu p Manua l 6 1 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

• Ar e awar e tha t

composit e sample s ar e NO T acceptabl e for volatil e materials , no r

ar e composit e sample s acceptabl e fo

r an y confirmatio n samples ; • Sampl e an d analyz e for non-pefroleu mcontaminatio n i f tha t i s warrante d (suc h a s i n case s o f wast e oi l contaminatio n - see OA R340-122-021 8 in Sectio n 2.5 : Summar y o f Eac h Rule) ; • Determin e th e specifi c analytica l method s neede dfo r you r sample s an d chec k

tha t th e laboratory tha t

yo u ar e plannin g t o us e i s capabl e o f performin g thes e methods ; • Chec k

with th e laborator y t o fm dou t i f the y can generall y attai n adetectio n limi t lo w enoug h fo

r you r purposes ; an d • Alway s measur e th e depth t o groundwate r an dpurg e well(s ) before every groundwate r samplin g event . Discussio n o f

you r samplin g result s shoul dinclude : [ Wher e sample s wer e collecte d(includ e th e depth o f soi l samples ) an d why yo u chos e thes e locations; . Th e relationshi p betwee n sampl e location s an d know n area s o f contamination ; Well purgin g rates , volumes , methods , an dwate r disposal ; Ho w th e sample s wer e collected , preserve d an dstore d(giv e details) ; Soi l sampl e descriptio n includin g lithology , odor , color , stainin g an d whethe r th e soi l wa s remove d o r

lef t i n place ; • • Wh o collecte d th e samples ; Wha t qualit y assuranc e measure s wer e take n (ho w th e samplin g equipmen t wa s cleaned) ; Wha t qualit y contro l measure s wer e take n (fiel dblanks , trave l blanks) ; Ho w th e sample s wer e packe dan dtransporte dt o lab ; Us e o f prope r chai n o f custod y procedures ; Wha t wa s th e length o f

time betwee n samplin g an d analysis ; To wha t lab wer e th e sample s shipped ; an d Wha t analytica l method s yo u requeste d (giv e th e specifi c EP A metho d numbers ) an d why . B . Subsurfac e Investigatio n Includ e pertinen t

technica l desig n an dinstallatio n informatio n an d wh y yo u use d thos e method s and ' equipment . Discuss :

• Choic e o f

wel l an d pus h prob e location(s) ; • Well desig n a s relate dt o propose d use ; • Well installation methods , data , as-buil t diagram s an d log s (includ e name s ofth e wel l drille r an d perso n wh o logge d th e wells) ; • Soi l sample s collecte d durin g drillin g an d field vapo r screening ; • Reaso n fo r

choic e o f

material s used , depth o f

installation , lengt

h an d locatio n o f

screene d interval , slo t

siz e an d filter pac k grai n size ; • Well developmen t

methods ; • Well developmen t

o r productio n rat e an d wate r disposal ; • Parameter s use dt o determin e whe n developmen t wa s complete ; an d • An y problem s o r

unusua l circumstance s encountere ddurin g th e installation an d developmen t ofth e wells . Remembe r

tha t al l groundwate r

monitorin g well s mus t

b e installe d b y alicense d Monitorin g Wel l Constructo r an d registere d wit h th e Orego n Wate r Resource s Departmen t

(WRD ) i n accordanc e wit h OA R690-240-000 5 throug h 690

- 240-018 0 (Constructio n an dMaintenanc e o f Monitorin g Well s an d Othe r Hole s i n Orego n (WRD,-1995)) . Fo r informatio n o n thes e mles , contac t th e Wate r

Resource s Departmen t

at 503-378-8455 . Fo r

additiona l guidanc e pleas e refe r t o Groundwate r

Monitorin g Well Drilling , Construction , an d Decommissionin g (DEQ , 1992) .

US T Cleanu p Manua l 6 2 Ma y 200 9• Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m C . Fiel d Test s Includ e technica l detail s fo r al l field test s i n you r

reports . Suc h test s includ e aquife r characterizatio n test s a s wel l a s preliminar y design/operationa l test s o n pump-and-freat , vapo r extraction , ai r

stripper , bioremediatio n o r othe r remediatio n systems . Include :

• Detail s o f

tes t metho dprocedures ; • Referenc e t o publishe darticle s describin g chose n tests ; • Reason s fo r

choosin g tes t

method s used ; • Method s use dfo r

analysi s o f

data ; • Numerica l result s o f tests ; an d • Sit e map s showin g locatio n o f equipment , resultin g cone s o f depression , groundwate r o r soi l vapo r capture/extractio n zones , an d an y othe r relevan t details . If equation s o r

graph s wer e use d t o arriv e at th e final results , b e sur e t o includ e thos e equation s o r graph s (an d thei r references ) i n th e report . If compute r

softwar e package s wer e use d t o obtai n th e results , provid e appropriat e reference s an d rational e fo r

chose n algorithms . IV . RESULT S Dat agatherin g a t

US T cleanu p site s i s generall y don e fo r on e o r mor e ofth e followin g reasons :

• T o prov e o r

disprov e th e presenc e o f contamination ; • T o identif

y th e natur e ofth e contaminants ; • T o determin e th e magnitud e an dexten t ofth e contamination ; an d T o sho w changes/trend s i n contaminan t level s ove r

time . • Whe n preparin g th e par t o f you r repor t tha t discusse s th e result s ofth e sampl e analyses , yo u shoul d kee p i n min d th e purpose(s ) o f

you r dat as o tha t

yo u ca n focu s you r

discussion . A . Presentatio n o f

Dat a Th e easies t

wa y t o presen t

you r dat ai s t o displa y i t

i n tables . I t

i s recommende d tha t

yo u presen t

you r dat ai n atabl e o r serie s o f table s eve n whe n par t

o r al l o f i t i s als o displaye d i n som e othe r for msuc h a s o n map s o r

graphs . Yo u shoul dinclud e historica l dat afo r eac h samplin g poin t

i n tables . Table s ar e eas y t o us e for aquic k revie w o f

wha t wa s foun dat th e sit e an dan y dat afrends ove r time . I n additio n t o dat atables , yo u shoul d displa y ke y dat aelement s visuall y (i.e. , o n maps) . Alway s includ e on e o r severa l map s showing : Curren t sampl e result s poste do n sit e map s a t th e sampl e locations ; Plum e outline , an d i f

dat apermits , wate r

tabl e elevatio n contours ; Dissolve dcontaminan t

concentratio n contours ; Approximat e boundarie s o f contaminate darea(s) , includin g off-sit e contamination ; Groundwate r

flo w directio n arrows ; Lithologi c cross-section s derive dfi'o mwel l logs o r borings ; Graph s o f

concentration s versus time; an d A grap h o f

concentratio n versus distanc e fro mth e sourc e area , alon g th e plum e centerline . Whe n appropriate , includ e ol dan dne w dat ao n th e sam e map s o r diagrams . B e sur e t o identif y whic h value s ar e from whic h samplin g event . I n som e cases , aserie s o f map s o r chart s showin g change s ove r tim e ma y b e th e bes t

wa y t o mak e you r

point . Th e map s an dgraph s mentione d abov e wil l b e invaluabl e i n showin g tha t groundwate r

plume s hav e stabilized . US T Cleanu p Manua l 6 3 Ma y 200 9^

Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m If yo u inten dt o us e commercia l compute r softwar e package s t o produc e concenfratio n o r elevatio n contours , b e awar e tha t the y mus t

b e use d with caution . Yo u shoul dexamin e suc h diagram s carefull y t o mak e sur e tha t the y ar e consisten t wit h th e availabl e data . Yo u ma y nee dt o experimen t wit h th e algorithm , smoothing , gri d spacin g an d othe r factor s t o sho w you r

dat ai n awa y tha t

mos t reflect s you r

interpretatio n ofth e sampl e data . Th e mos t commo n proble mwit h suc h diagram s i s extrapolatin g th e data , tha t is , displayin g estimate d concentration s o r elevation s outsid e th e are a wher e dat ahav e bee n collected . B . Discussio n an dAnalysi s ofth e Result s Althoug h thi s ma y b e th e mos t importan t componen t o f reports , i t i s b vfa rth e mos t neglecte d componen t I t i s no t enoug h t o simpl y presen t th e dat a collecte d a t you rsite , yo u mus t als o carefull y analyz e an d discus s th e meanin g o f th e data . I n th e discussio n an danalysi s section , yo u should :

• Relat e th e soi l an d groundwate r contaminatio n t o th e know n source s o f contaminatio n a s wel l a s t o eac h other ; • Specificall y addres s th e type s ofpetroleu mproduct s release d an d th e contaminant s o f conce mwhic h wer e teste d fo r an dfoun di n th e groundwater ; • Relat e groundwate r

contaminan t

plume s t o directio n an dvelocity o f groundwate r

flow ; • Sho w change s in wate r tabl e elevatio n an d discus s ho w thos e change s ma y hav e affecte d contaminan t concentrations ; • Discus s th e currentl y know n vertica l an dhorizonta l exten t ofth e soi l an d groundwate r contamination ; an d • Examin e th e dat at o determin e i f th e know n exten t

o f contaminatio n als o appear s t o b e th e fiill extent o f contamination . If ther e ha s bee n mor e tha n on e samplin g even t a t you r site , yo u shoul d also :

• Provid e asummar y o f AL L ofth e dat atha t

hav e bee n collected ; • Discus s an y trend s in th e data ; • Relat e measure dtrend s t o possibl e natura l cause s suc h a s dilutio n b y recharg e o r movemen t

ofth e plume ; an d • I f appropriate , relat e measure dtrend s t o correctiv e action s taken . Whe n yo u hav e complete dthi s sectio n ofth e report , revie w wha t yo u hav e writte n an d mak e sur e tha t th e dat asupport you r position . Fo r

example , don' t

mak e comment s abou t "fypica l backgroun d levels " withou t providin g eithe r measurement s o f

backgroun dvalue s o r

properly-reference ddat afroman outsid e source . Also , don' t stat e tha t biodegradatio n wil l eliminat e th e remainin g contaminatio n withou t specifi c evidenc e fromyou r site . Finally , whe n yo u discus s trend s i n you r data , mak e sur e tha t

vo u ca n suppor t

you r statement s wit h graph s o r statistics . V . CONCEPTUA L SH E MODE L Yo u shoul d begi n wor k

o n th e conceptua l sit e mode l earl y i n th e investigatio n s o tha t yo u ca n identif

y dat agap s an d collec t informatio n neede dfor risk-base ddecisio n making . Afte r determinin g th e curren t location s an d level s o f contaminatio n a t

you r site , yo u MUS T evaluat e th e migratio n pathway s an d potentia l effect s o f thi s contamination . Fo r thi s yo u mus t

consider : A . Source s Discus s th e fype o f

product(s ) release dincluding :

• Whe n an d wher e th e releas e occurred ; • Medi a(e.g. , soil , water ) contaminate d an dcontaminant s o f conce min eac h medium ; • Distributio n an dconcentratio n o f contaminant s i n eac h medium ; UST Cleanu p Manua l 6 4 Ma y 200 9Orego n Departmen t o f Environnienta l Quality - Undergroun d Storag e Tan k Progra m

• Chemica l an d physica l properties ; • Relevan t

component s o f

th e petroleu mproduct s tha t ar e likel y t o presen t

aris k (e.g. , benzen e in gasoline) ; • Persistenc e (i.e. , i s i t likel y t o evaporat e o r

degrad e righ t

awa y o r wil l i t remain) ; an d • Potentia l fo r

migration . B . Exposur e Pathway s Human s ca n b e expose dt o toxi c substance s i f the y breath e the min , ea t o r drin k them , o r throug h contac t

wit h th e skin . Thes e exposur e pathway s ar e discusse d i n th e documen t Risk-Base d Decisio n Makin g fo r th e Remediatio n o f Petroleum-Contaminate dSite s (DEQ , 1999) . Yo u shoul dprovid e site-specifi c informatio n t o suppor t whethe r yo u include d o r

exclude dal l standar dpathways . Summariz e existin g dat ashowin g ho w fa r th e contaminant s hav e migrate dbot h on - an doff-sit e an dus e thes e i n adiscussio n of :

• Ho w clos e the y ar e t o both surfac e an d groundwater ; • Groundwate r

an dsurfac e wate r

discharg e points ; • Curren t

an dfiiture use s o f

groimdwate r

includin g result s fo r

wel l survey s o r

beneficia l us e studies ; • The potentia l fo r

th e contaminant s to continu e migrating ; • The potentia l exposur e pathway s an d estimate dconcentrations ; an d • Whether

a n ecologica l ris k

assessmen t

i s neede dfo r

animal s o r

plants . C . Receptor s Havin g covere d th e natur e an dexten t o f contamination , discus s th e population s tha t ma y b e a t

risk fromth e contaminant s a t

you r site . Cove r

reasonabl y likel y fiiture use s an d include :

• Informatio n abou t

th e curren t

use s o f you r sit e an dadjacen t

properties ; \ • Identificatio n o f

well s withi n on e mil e o f

you r sit e an d thei r

use s includin g no t

onl y well s liste d wit

h th e Orego n Wate r

Resource s Department , bu t als o well s foun di n field surveys , includin g suc h informatio n as : • Well owner , addres s an d ma p location ; • Drille r

an ddat e drilled ; • Tota l dept h ofth e well ; • Reporte d o r

measure ddepth t o water ; • Casin g an d scree n materials ; • Screene d interval ; • Sea l types , depth s an dintervals ; • Stati c pumpin g levels ; • Approximat e lan dsurfac e elevation ; an d • Reporte dwate r

qualit y an d us e o f

wel l • The potentia l o r

actua l advers e impact s o n huma n receptors , ecosystems , natura l resources , an d th e environmen t VI . CORRECTIV E ACTIO N MEASURE S Yo u mus t includ e thi s sectio n ofth e repor t i n al l correctiv e actio n plan s prepare d unde r OA R340-122-0250 . I n i t yo u mus t identif y action s t o protec t

publi c health , safefy , welfar e an d th e environmen t fromth e releas e o f

contaminant s at you r site . Althoug h CAP s mus t als o includ e th e othe r

section s liste d i n thi s outiine , i n mos t case s th e detaile d informatio n require dfo

r thos e section s wil l alread y hav e bee n covere d i n previou s report s an d yo u wil l onl y nee d t o summariz e i t a s appropriat e fo r

th e CAP . However , i f

yo u hav e carrie d ou t

fiirther investigation s sinc e th e las t report , discus s thes e i n detai l i n th e appropriat e section s ofth e CAP . I n thi s section , b e sur e t o cove r eac h ofth e followin g topics : A . Cleanu p Option s Discus s th e cleanu p option s yo u considere dfo r thi s site . Suc h option s ma y include : UST Cleanu p Manua l 6 5 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m Soi l excavatio n an dtreatmen t o r disposal ; In-plac e soi l treatment , eithe r activ e o r passiv e (e.g. , natura l degradatio n with monitoring) ; Fre e produc t

recovery ; Groundwate r

remova l an dtreatment ; Groundwate r

gradien t control ; Vapo r contro l measures ; Replacin g th e drinkin g wate r supply ; an d Relocatin g th e resident(s) . B . Contaminant s o f

Conce man d Risk-Base d Concentration s Yo u shoul d includ e risk-basedconcenfration s fo r al l applicabl e pathway s a t th e sit e an d athoroug h justification , includin g modelin g o r

calculatio n results , fo r

an y site-specifi c risk-based concenfrations . If yo u hav e carrie d ou t

site

specifi c modeling , yo u shoul dinclud e eithe r i n thi s sectio n o r

i n a n appendi x a t

th e en d ofth e report :

• Th e nam e aru i descriptio n ofal l model s use dfo r you r calculations ; • A brie f

discussio n o f

wh y th e model s ar e appropriat e fo r you r site-specifi c calculation ; • A tabl e listin g al l ofth e inpu t values tha t

vo u use dwhe n runnin g th e models ; • A brie f

explanatio n a s t o wher e yo u obtaine dth e inpu t value s an d wh

y yo u chos e eac h on e —

thes e wil l typicall y fal l int o on e q f

thre e categories : (I. ) site-specifi c data , (2. ) laborator y data , o r (3. ) estimate s fi-o

mscientifi c literature ; • A discussio n ofth e sensitivit y ofth e mode l t o th e inpu t value s an d wha t

range s o f dat ayo u ma y hav e trie d before settlin g o n you r

final set ; an d • A discussio n ofth e uncertaint y i n th e mode l inpu t values . I t i s usuall y muc h bette r

t o sho w th e rang e o f

option s yo u fried whe n experimentin g wit h th e modelin g tha n t o jus t presen t on e final result . Thi s make s i t easie r t o follo w you r

modelin g logic . Fo r groundwate r

contaminants , includ e specifi c informatio n about :

• Eac h ofth e detecte dcontaminant s o f concern ; an d • The complianc e point s wher e th e risk-base dconcentration s will b e attained . C . Cleanu p Action s Alread v Taken I t i s importan t

t o remembe r

tha t yo u ar e no t

onl y allowed , bu t

als o encourage d t o perfor mcleanu p activitie s t o reduc e th e sprea do f

contaminant s eve n befor e th e CA P ha s bee n submitte d o r approved . Thi s ma y b e don e a s lon g a s yo u notif y DE Q abou t

suc h activities , compl y wit h an y condition s tha t DE Q ma y impose , an d incorporat e th e cleanu p measure s take n int o you r CAP . Therefore , th e correctiv e action s discusse d i n you r CA P shoul d no t

simpl y b e brie f theoretica l summarie s o f wha t migh t b e done . You r

repor t shoul d cove r

wha t yo u hav e alread y don e i n additio n t o an y futur e action s tha t

yo u ar e proposin g fo r

th e sit e (se e nex t

section) . Includ e informatio n relate d to :

• Design , specification s an dinstallatio n ofth e equipmen t bein g used ; • Operationa l parameter s suc h a s pumpin g rates , flow rates , an d discharg e rates ; • Locatio n o f

recover y wells , vapo r

extractio n systems ; an d • Reason s fo r

choosin g th e item s liste dabov e (includ e discussio n ofpreliminar y dat aconfirmin g th e effectivenes s o f th e remedia l actions) . D . Futur e Cleanu p Activitie s Base do n th e curren t

informatio n abou t

th e system , discuss : US T Cleanu p Manua l ,6 6 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

• Thepossibleneedfo r expandin g th e syste mt o completel y captur e th e contaminan t plume ; . • Operationa l an dmaintenanc e need s ofth e syste man dho w yo u wil l addres s them ; • Planne dmonitorin g activities t o evaluat e th e effectivenes s ofth e system ; • . Ho w yo u pla n t o analyz e th e dat at o prov e tha t th e cleanu p level s appea r t o hav e bee n me t

an d th e syste mca n b e shu t down ; an d • Wha t monitorin g yo u wil l d o afte r th e syste mha s bee n shu t dow n t o confir

mtha t final cleanu p level s hav e bee n me t a t th e site . B e sur e t o includ e necessar y sit e maps , equipmen t diagram s an d specifications , an d relevan t equation s an d calculation s tha t

confir mtha t

you r syste mha s bee n designe dan d i s operatin g correctly . VI L CONCLUSION S Yo u shoul dalway s includ e i n you r repor t asectio n summarizin g ke y finding s an d conclusion s abou t th e investigation/correctiv e actio n activities . Whe n preparin g thi s section , answe r an y o f th e followin g question s appropriat e t o you r

stag e o f investigation : Hav e yo u locate d an d remove do r remediate dknow n source s ofth e contaminatio n bot h on-sit e an d off-site ? Ar e ther e an y remainin g problem s wit h vapors ? Hav e yo u define d th e ful l magnitud e an dexten t o f bot h soi l an dgroundwate r contamination ? Ar e an y ofth e contaminant s stil l moving , and , i f so , wher e to , an d wha t

ar e th e potentia l impacts ? Ar e th e correctiv e action s producin g th e desire d result s ? Wil l yo u us e an y institutiona l o r engineerin g control s t o achiev e closure ? Wha t i s th e complianc e monitorin g schedule ? Wil l furthe r wor k b e needed ? Note : A recommendatio n fo r"n o furthe raction " mus t b e justified . I f vo u canno t suppor t you rrecommendation , I t wil l likel y b e rejected . If mor e wor k

i s needed , include :

• Your , plan s fo r furthe r action ; • A schedul e o f

estimate d date s fo r

thes e activities ; an d • A propose d dat e fo r

submittin g th e nex t

repor t t o th e Departmen t Vin . SUPPORTIN G DOCUMENTATIO N B e sur e t o attac h appendice s t o your-repor t wit h relevan t

supportin g documentation . Includ e suc h item s a s copies of : Laborator y dat asheets ; Chai n o f custod y forms ; Wel l start-cards ; Water Resourc e Departmen t

wel l log s fo r

existin g well s i n th e vicinit y ofth e site ; Pus h probe/soi l boring , monitorin g wel l an dtes t pi t logs ; Receipt s fo r

disposa l o f

contaminate d soi l and/o r water ; Receipt s fo r

disposa l o f

tank s an d piping ; Discharg e permit s o r

agreement s wit

h loca l waste-wate r

treatmen t

plant s fo r disposa l o f

contaminate d water ; Photographs ; an d

UST Cleanu p Manua l 6 7 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Progra m

• Information o

n an y fat e an d transpor

t mode l used i n th e risk-base d analysi s o f

indoor/outdoo

r air , groundwate

r an d surfac e water . DC . REFERENCES I f you r repor t refer s t o an

y previou s reports , technica l o r scientifi c papers . Environmenta l Protectio n Agency guidanc e documents , o r

othe r outsid e documentation , you mus t include aseparat

e sectio n wit

h complet

e bibliographi c information includin g th e name s ofth e authors , publisher s and publication s a s well a s date s publishe d an d page s cited . Thes e guideline s are Intende d t o b e a summar y ofth e topic s mos

t ofte n covere d whe n reportin g typica l activitie s a t UST Cleanu p sites . Specifi c topic s no t discusse d wil l usuall y stil l fal l int o on e o f th e categorie s covere d above ; yo u shoul d trea t the m wit h a simila rleve l o f detail . I t bear s repeatin g tha t sinc e thi s Informatio n I s mean t t o appl y t o a wid e variety o f reports , no t ever y commen t wil l b e appropriat e fo ral l reports . Yo u wil l nee d t o us e vou rbest professiona l judgmen t I n decidin g what applie s t o a repor t o n vou rspecifi c site . I f yo u hav e questions , yo u shoul d discus s the m wit h th e appropriat e regiona l US T Cleanu p projec t manager .

US T Cleanu p Manual 6 8 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 3.2 : EXAMPL E REPORT S AN D OUTLINE S A s mentione dbefore , th e repor t mus t fit th e site and mor

e comple x site s wil l hav e mor

e comple x reports . Therefore , i

n aguidanc e documen

t lik e thi s i t i s difficult

t o tel l you exactly wha

t yo u nee d to put

i n an y specifi c report . Som

e reports , however , suc h a s th e 20-da y repor t an d th e soi l matri x report , ar e mor e sfraigh t forwar d an d generally include th e same informatio n fromsite t o site . T o assis t you wit h thes e reports , w e hav e include d i n thi s section :

• A fou r pag e "fill-in-the-blanks " 20Tda y repor t tha t you ca n photocop y fromthi s manual , fill in , an d submit t o fulfil l tha t reportin g requirement ; and

• A n outlin e includin g adescriptio n ofth e fype o f informatio n tha

t mus t b e include d i

n asoi l matri x report . Thes e report s ca

n b e foun d on th e followin g pages . NOTE : Th e mos t

current version s o f

US T an d US T cleanup forms , includin g interactiv e form s tha t ca n b e filled out right o n th e scree n and the n printed , ca n b e foun d on DEO' s Websit

e at : http://www.deq.state.or.us/pubs/forms.htm . DE O recommend s vo u eithe r us e th e interactiv e forms o r downloa d th e mos t

curren t version s t o use .

US T Cleanu p Manua l 6 9 Ma y 200 9Oregon Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Progra m Sectio n 3.2.1 : Initia l (Twenf y Day ) Repor t

For mfo r

US T Cleanu p Project s Thi s repor t

i s du e twenty (20 ) day s fro mth e dat e ofth e release . DE Q UST

C Fil e No . DE Q Facilit

y I D No . Sit e Name : - Sit e Address : . INITIA L CLEANU P INFORMATIO N (1 ) Typ e o f contaminatio n (chec k al l tha t apply) : Gasolin e Diese l Wast e Oi l Heatin g Oi l Othe r(specify) (2 ) Estimat e quantit

y o f releas e (base d o n Informatio n know n t o date) : <100gal . 100-49 9 gal . 500-99 9 gal . 1,000-5.00 0 gal . >5,000gal . SIT E INFORMATIO N (Circl e N fo r "no " o r Y fo r "yes" ) (3 ) N Y Di d an y wate rente rth e excavation ? I f yes , pleas e describ e an d Identif y th e dept h t o groundwate ri n fee t below groun d surface : \ (4 ) N Y Wa s a shee n o rodo robserve d o n an y wate ri n th e excavation ? Note: I f groundwate rI s encountered , soi l sample s fro m th e soil/wate rInterfac e must b e collecte d an d analyze d fo r BTE X an d b

y th e appropriat e TP H method . At site s where diese l o rothe rnon-gasolin e product s hav e bee n released , th e wate rma y als o hav

e t o b e screene d o r teste d fo rpolynuclea raromati c hydrocarbon s (PAHs) . Refe rt o OA R 340-122-0218 . (5 ) N Y Wa s wate rpumpe d fro m th e excavation ? N Y I f yes , di d groundwate rrecharg e withi n 2 4 hour s afte rpumping ? Pleas e describ e th e pumpin g procedure an d disposa l optio n selecte d fo rth e purge d excavatio n water : (6 ) N Y Wer e there an y wate rsample s collecte d fro m th e excavation ? I f yes , pleas e describe : (7 ) N Y Have an y soi l and/o rwate rsampl e result s bee n receive d a t thi s time ? I f so , pleas e attac h an y la b reports . .- . , 20-da y Repor t Pag e 1 o f 4

US T Cleanu p Manual 7 0 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m I F GROUNDWATE R HA S BEE N ENCOUNTERED , PLEAS E ANSWE R QUESTION S #8-13 , BELOW .

I F N O WATE R HA S BEE N ENCOUNTERED , PLEAS E SKI P T O QUESTIO N #1 4 (8 ) Wha t ar e th e know n use s o f groundwate rwithi n a 500-foo t radiu s o f th e releas e site ? non-us e industria l agricultura l drinkin g suppl y (9 ) I f groundwate ri n thi s are a i s bein g use d a s a drinkin g wate rsupply , pleas e chec k th e typ e an d siz e o f populatio n serve d b y th e supply : Communit y (communit y wel l use d fo rdrinkin g wate ryea rround ) size : <1,00 0 peopl e 1,00 0 - 5,00 0 peopl e >5,00 0 peopl e Intermitten t us e (publi c wate ruse d fo rdrinkin g wate ronl y o n a part-tim e basis ) size : <5 0 peopl e 5 0 - 30 0 peopl e > 30 0 peopl e Privat e well s (Individua l privat e wel l o rwell s use d fo rdrinkin g water ) size : <1 0 peopl e 10-2 5 peopl e >2 5 peopl e (10 ) N Y I s ther e an y evidenc e thi s wate rsuppl y ha s bee n o ri s likel y t o b e impacte d fro m th e petroleu m

produc t release ? I f yes , estimat e ho w difficul t I t woul d b e t o replac e th e existin g supply :

bottle d wate ri s th e oril y alternativ e on-sit e wate rtreatment ; bul k wate rdelivery ; ne w well s ar e availabl e abl e t o connec t t o existin g wate rsuppl y d o no t kno w wha t altemative s woul d b e availabl e (11 ) N Y Are/wer e ther e an y vapor s presen t i n on-sit e o rnearb y buildings ? I f yes :

A . Ar e yo u monitorin g and/o rmitigatin g an y potentia l fire an d safet y hazard s pose d b y vapor s an d fre e product ? Explain : B . Estimat e th e numbe ro f peopl e potentiall y affecte d b y vapors :

1 - 2 peopl e 3-1 0 peopl e > 1 0 peopl e (12 ) N Y Ar e vapor s o rI s petroleu m contaminatio n presen t i n th e utilit y conidors ?

I f yes , pleas e explain : (13 ) N Y Ar e ther e natura l area s withi n 1/ 4 mil e o f th e site ? I f so , pleas e describ e types (parks , rivers , wetlands , sensitiv e habitats , etc. ) an d proximity : (14 ) N Y I f groundwate rwa s no t encountere d I n th e excavation , d o yo u believ e tha t thi s cleanu p projec t ca n

b e conducte d unde rth e requirement s fo ra n US T Cleanu p Matri x site ? I f yes , the n refe rt o OA R 340-122-030 5 throug h 0360 . 20-da y Repor t ' Pag e 2 o f 4

UST Cleanu p Manua l • . 7 1 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Program AREA/SIT E CONDITIONS : (15 ) Mea n annua l rainfall ; <2 0 Inche s 20-4 5 Inche s >4 5 inche s (16 ) Soi l type(s) o f th e naturall y occumn g soils , no t th e backfil l aroun d th e tank : clays , compac

t tills , shales , an d unfracture d metamorphi c an d Igneou s rock s sand y loams , loam y sands , silty clays , cla y loams , moderatel y permeabl e limestone , dolomite , sandstones , moderatel y fracture d Igneou s an d metamorphi c roc k fin e an d silt

y sands , sand s an d gravels , highl y fracture d igneou s an d metamorphi c rock , permeabl e basalt s an d lavas , kars t limestone s an d dolomite s SOI L MANAGEMEN T (17 ) I f soi l sampl e result s have bee n received : N Y Wil l th e leve l o f contaminatio n detecte d requir e remova l o f contaminate d soi l fo rtreatmen t o r disposal ? (18 ) Al l contaminate d soi l temporaril y stockpile d on-sit e prio rt o treatmen t o rdisposa l must b e containe d withi n a benne d area , kep t covered , an d th e entir e are a secure d t o preven t unauthorize d acces s b y th e public . I f yo u haven' t don e this , pleas e explai n why :

Note : I t i s a violatio n t o stockpil e petroleu m contaminate d soi l (PCS ) on-sit e fo rgreate rtha n 3 0 day s withou t a DE Q Soli d Wast e Lette rAuthorizatio n (SWLA ) Permit . Se e Sectio n 1.4 : Permi t Requirement s fo r US T Cleanu p Sites . (19 ) I f contaminate d soi l i s currentl y stockpile d on-site , pleas e Indicat e whe n disposa l wil l occu ro rwhe n treatmen t wil l begin : (20 ) Estimate d volum e o f contaminate d soi l (specif y ton s o rcubi c yards) : (21 ) Intende d dispositio n o f soil s (pleas e chec k one) : On-site/off-sit e treatment . Soli d Wast e Lette rAuthorizatio n Permi t Applicatio n attached . Themna l treatmen t off-sit e a t a n authorize d facility . Facilit y name : Landfil l disposal . Nam e o f Landfill : • • Note : Pleas e attac h additiona l informatio n a s necessary t o explai n an y unusua l circumstance s associate d wit h thi s projec t _ 20-da y Repor t Pag e 3 o f 4

US T Cleanu p Manual 7 2 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Thi s initia l repor t i s intende d t o provid e th e Departmen t wit h th e basi c initia l Informatio n abou t activitie s associate d wit h th e release . Futur e report s shoul d provid e a mor e detaile d an d complet e pictur e ofth e cleanu p project . Pleas e b e awar e tha t a DE Q pennit/authorizatio n I s require d fo rth e followin g activities : 1 ) Soi l aeration , bioremediatio n (on-sit e o roff-site) , o ron-sit e therma l treatment . 2 ) Wate rdischarge s t o a stream/ston n drai n fro m th e excavatio n o rtreatmen t tank . I f thes e activitie s wil l b e include d i n you rcleanu p project , contac t th e regiona l DE Q offic e fo rth e appnapriat e applicatio n forms , infonnatio n o n penni t fee s an d guidanc e documents . 

### THI S REPORT WA S PREPARE D BY : Individual : Phone : J _ Company : Address : City : • \ Stat e Zjp _

Pleas e retur n thi s for

mt o th e regiona l offic

e in which th e site i s located . ' Addresse s an dphon e number s for thes e office s can b e found in Sectio n 1.2 : US T Progra mOffices . I f you hav e questions , cal l th e contac t perso n in you r

regional office .

REMINDER : Fo r

non-heatin g o

U tanks , yo u mus t

submi t aUS T Decommissioning

/ Change-in-Servic e Report for man d aUS T Decommissionin g Checklis t to th e appropriat e regional offic

e withi n 3 0 day s ofth e US T decommissioning . See SECTIO N 4 : FORM S USED FO RUS T CLEANU P PROJECTS , for copies . Failur e t o d o s o can resul t in delay s t o you r

projec t an d ma y resul t i n continue dbillin g for

th e tan k permi t fees .



### KEE P ACOP Y O F THI S REPOR T FO R YOU R FACILIT Y RECORD S

20-day Repor

t Pag e 4 o f 4

US T Cleanu p Manua l 7 3 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Sectio n 3.2.2 : Soi l Matri x Repor t Guidanc e In general , matri x report s will no t requir e th e leve l o f detai l tha t mus t b e include d i

n man y o f th e othe r report s submitte d i

n complianc e wit

h th e US T cleanup rules . However , th e rule s requir e tha t certai n informatio n b e include d i n all matrix reports . Sinc e asoi l mafri x cleanup wil

l no t b e considere d complet

e unti l arepor

t ha s bee n submitted and approved , i

t i s importan

t tha t such report s b e properly prepared . Thi s will help reduc e th e tim e tha t i t take s fo r th e Departmen

t to review an

d respon d t o your

report . I t i s recommende d tha

t soi l matri x report s b e prepare d a s outline d below . I . All Mafri

x report s shoul d begi n wit

h anarrativ e sectio n describing : A . Ho w the releas e wa s discovered , wha t initia l measure s wer

e take n to confro l th e sprea d of contamination , wha t wa s observe dwhe n th e tan k wa s remove

d fromth e pi

t (odor , sheen , stained soils , hole s i n tan k o r lines , etc.) ; B . Ho w the cleanu

p was done'and wha

t wa s don e wit h th e contaminated soil s an

d the decommissione

d tan k an d piping (copie s of

receipt s an

d othe r record s relate d t o thi s ste

p shoul d b e included) ; C . Wh o collected th

e samples , how the

y wer e collected , stored an

d shippe d to th e laboratory ; an

d D . An y unusua l condition s o

r problem s tha

t wer e encountered . II . If there i s an y soil remainin g a

t your sit e whic h contain s contaminan

t level s i n exces s of

mafrb c cleanu p level s ("pocket o f contamination") , yo u mus t describ e wher

e i t i s located , wh

y yo u lef t it , provide a

n estimat e ofth e approximat

e volum e an d leve l of contamination , an d lis t

th e concenfration s of

an y contaminant s tha

t ma y contribute t o volatilizatio n t o indoo r o r outdoor air . Remembe r tha t you mus t hav e th e Department' s approva l to leav e such contaminatio n a t amatrix site . Therefore , thi s shoul d b e discusse d whil e cleanu p i s in progress , no t

afte r th e repor t ha s been submitted . III . If you encountere dan

y wate r in th e tan k excavation(s) , yo u mus t

describ e wha

t you di d wit

h th e water . I f wate r retume d t o th e pi t

withi n 24 hour s afte

r pumping , yo u mus t

sample th e wate

r and repor t th e result s t o th e Department . Yo

u shoul ddiscus s th e result s o f th e test s in you

r report . Include asummar y o f any discussion s tha

t yo u ha dwit h th e Departmen

t on thi s subject . IV . I f your sit e containe d an

y contaminatio n associate d wit h areleas e fromawaste-oi l tank , yo u mus t provide th e result s o f th e specia

l analytica

l test s require d fo

r such contamination , an

d discus s measure s take n fo r removin g and handlin g thi s contamination , o r an y decision s made b

y th e Departmen

t regardin g thi s contamination . Th e locatio n and magnitude ofan y remainin g wast e oi l contaminatio n mus t

b e specifically discussed . V . Include adetaile dsketc h o f your site which i s neatl y draw n an d clearly labele d to show : A . The location of

building s an

d othe r ke y features , bot

h man-mad

e an d natural ; B . The name s ofadjacen

t sfreet s an d properties ; C . Th e locatio n of excavation s includin

g thos e tha t wer e fo r the remova

l o f tanks an d associate d pipin g as well a s thos e tha t wer e strictl y fo r th e remova

l o f contaminated soils ; D ; Th e locatio n of product storag e tanks , line s an

d dispensers , includin

g thos e tha t wer e decommissione

d a s wel l as thos e tha

t remai n o n th e site ;

US T Cleanu p Manua l 7 4 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m E . The location s fromwhich soil an d wate r sample s wer

e collected . Thes e location s should b e marked wit h identifyin g sampl e number s tha

t correspon d t o th e number s use

d i n table s an d laborator y dat arefX)rts . B e sur

e t o clearl y identif y th e location s associated wit h wast e oil contamination. ; an

d F . Th e location o f

an y contaminated soi

l whic h exceed s matrix cleanu

p level s bu t whic h has bee n lef t wit h approva l ofth e Department . VI . Include copie s ofth e complete d mafrb c scor e shee t and checklist . Thes e document s ca n b e foun din Sectio n 4.4 : Soi l Matri x Checklis t

andScor e Sheet . VII . Include copie s ofal l laborator y datasheet s fo

r sample s collecte d a

t th e sit e plu s copie s ofth e chain-of

custod y forms . Als o includ e copie s of all receipt s fo

r th e disposa

l of free produc t

and/o r sludges , contaminate d soi l an d water , and decommissione d tank s and piping .

A cop y ofth e matri x repor t mus t b e submitte d t o th e appropriat e regiona l offic e ofth e Departmen t o f Environmenta l Qualit y withi n 6 0 day s o f completin g wori < a t an y matri x site .

US T Cleanu p Manua l 7 5 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 3.3 : ANALYTICA L REQUIREMENT S The analytica

l requirement s fo

r US T cleanu

p site s have becom

e mor e comple x a s th e progra

mha s evolved fromTPH

base dsoi l matri x cleanup s to constituent-base d risk-based decisio n making . Also , th e current rule s provide you wit

h a rang e o f cleanup options , no t

al l o f which wil l hav e exactly th e sam e requirements . Pleas e refe r to th e overal l samplin g an

danalysi s rul e (OA

R340-122-0218 ) fo

r th e genera

l requirement s a s well a s t o an y specifi c information liste dunde

r your chosen cleanup option . This , sectio n provide s som e additiona

l discussio n an

d guidanc e o

n th e analytica l requirements . 3.3.1 : Genera l Comment s Except fo r fairl y small and simpl e cases , mos t US T cleanup s will b e carrie d out in phases . Differen

t phase s ma

y hav e differen t purpose s and , therefore , ma y require th e us e o f

differen t analytica l methods . Th e method s wil l als o depen d upo n th e cleanup goal s fo

r you r site . Fo r example , durin g th e initia l site characterizatio n i

t i s helpfiil to collec t

a numbe r o f soi l sample s and tes t

themfo r TP H to giv e yo u aquick

and les s expensiv e picture of ho w widesprea

d th e contaminatio n i s a

t your site and t o identif

y th e type(s ) o f

produc t releeised . Th e TP

H result s ma

y als o b e usefu

l t o direc t asoi l matri x cleanu

p o n al l or par t o f your site . However , sit

e condition s ma

y requir e yo u t o g o back

an dcollec t additiona l sample s t o tes t

fo r constituent s lik

e BTEX , PAHs , lead , an

d MTBE . Thi s informatio n ca n hel p you construc t aconceptua

l site mode

l s o you ca

n bas e you

r cleanup level s an

d site closur

e o n risk. Yo

u ma y choos e t o collec t bot h kind s o f sample s a t onc e t o sav e th e cost s o f

asecond samplin g trip . That' s u p to you . In mos t

cases , however , severa

l set s of sample s collecte d a

t differen t stage s i n th e overal l cleanup proces s wil l b e required . 3.3.2 : Require dAnalytica l Method s versu s Simplifie d Fiel d Test s Whe n you collec t

asample , ther

e i s one ver

y importan

t questio n to kee

p i n mind : Wha

t i s th e purpos e ofth e sample ? Ar e you collectin g i t

jus t t o get a n ide ao f wher e th e contaminatio n i s located , o r ar e you tryin g to get

som e datato sho w tha t you r sit e meet s th e require d cleanup level s fo r th e cleanu

p optio n yo u hav e chosen ? If i t i s th e first case , the n you ma

v us e an y sampl e collectio n and analytica l procedure s vo u choos e tha t wil l help you determin e th e exten t o f contaminatio n (e.g. , visua l observation s o f

staining , sheen , noticeabl e pefroleu modors) . Yo

u ma y als o us e les s expensiv e field method s tha t wil l giv e approximat

e result s quickly an

d efficiently . It

i s only whe

n you collec t

th e data tha t you pla n t o us e to demonsfrat

e tha t your site meet s th e cleanu

p level s tha

t you mus t us e th e method s specifiedin OA R340-122-021 8 (se e rul e citatio n below) . Note , however , tha t th e result s o f

all test s mus t

b e documente d i

n report s submitte dt o th e Department . OA R 340-122-218(1) : "T o streamlin e th e investigatio n ofpetroleu m US T releas e sites , a responsibl e perso n ma y us e expedite d sit e assessmen t method s (e.g. , pus h prob e samplers ) fo rsampl e collectio n an d analysi s a s lon g a s al l method s an d result s ar e documente d I n subsequen t report s t o th e Department . However , sample s use d t o demonstrat e complianc e wit h remediatio n level s mus t b e collecte d an d analyze d i n accordanc e wit h thi s section. " 3.3.3 : Th e Rol e o

f TP H Method s Although test s fo

r tota l pefroleu mhydrocarbon s (TPH) ar

e olde r an dles s specific tha

n man y ofth e analytica

l method s usedfo r risk-base ddecisio n making , th e result s of thes e test s stil l serv e tw o importan t purpose s a

t US T cleanu

p sites : • The y ar e use dfo r determinin g th e nature , magnitude , an d exten t of pefroleu mproduc t contamination , an

d shoul db e usedt o help characteriz e you r sit e eve n if you inten d t o propos e arisk-based, low-impac t site , o r generi c remed

y closure ; and

• The y ar e used fo r complianc e purpose s fo

r an y par t o f you r site (soil only ) tha

t you decide to clos e unde

r th e soil matri x optio n (OA

R340-122-032 0 through 340-122-0360) . The res t of thi s sectio n wil l discus s th e us e of TP H method s a s applie d to soi l matri x closures . US T Cleanu p Manua l 7 6 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Whe n TP H test s ar e goin g t o b e used fo r compliance , the n vou mus t us e th e TP

H method s specified bv th e Department . There ar

e thre e TP H method s develope d fo

r your us e unde r specifi c circumstances : • Th e Northwes t

Tota l PetroleumHydrocarbo n Identificatio n tes t (Metiio d NWTPH-HCID ) identifie s th e type of pefroleu mcontaminatio n in th e soi l (i.e. , i s i t gasoline , diesel , or

heavie r hydrocarbo n products) . Afte r yo u us e NWTPH-HCID to figure ou t wha t kind o f produc t or product s ar

e present , the n yo

u appl y on e o r bot h o f th e other tw o TPH test s (Method s NWTPH-Gx an d NWTPH-Dx ) t o measure how muc h contaminatio n i s present . • NWTPH-Gx i s use d fo r volatil e petroleu mproduct s suc h a s aviatio n and automotiv e gasolines , minera l spirits , Stoddar

d solvent an dnaphtha . • NWTPH-D x i s use d fo r semi-volatil e pefroleu

mproduct s suc h a s je t

fuels , kerosene , diese l oils , hydrauli c fluids, minera

l oils , lubricatin g oils , and fiael oils . Thi s sectio n describe s when th e NWTPH-HCID tes t mus t b e used , an

d explain s ho w to interpret

th e result s of

tha t tes t t o mak e sure tha t th e proper

TP H test s ar e use d a t your site . A flow char

t (se e pag e 81 ) and severa

l example s ar

e als o provided . Note tha

t thes e TP H tes t method s are use d no t

only a t site s wher e ther e ha s been areporte d release , bu t als o a t site s wher

e tank s are bein g decommissione d and no releas e ha s been found . Therefore , yo u ma y hav e to collec t differen t fypes o f sample s fo

r th e NWTPH-HCID tes t If you ar e workin g on th e cleanup o f areporte d release , th e NWTPH-HCID tes t mus t b e performe d o

n a n obviously contaminate d sampl e - th e mor e contaminated , th e better . Th e purpos e of thi s sampl e i s t o identif

y th e fype o f contaminatio n o n th e site . Thi s sampl e will no t b e use d t o determin e i f

cleanup level s hav e been met . If ther e i s mor e tha n on e separate are ao f

contaminatio n o

n th e properfy , the n a

t leas t on e contaminate d sampl e mus t b e taken from eac h are aandanalyze dby Metho d NWTPH-HCID . If yo u ar e workin g o n aroutin e tan k decommissionin g and ther e ar e n o sign s o f

arelease , then yo

u shoul d ru

n th e NWTPH-HCID tes t

o n sample s collecte d fromth e nativ e soil s belo w bot h end s ofth e tan

k t o prov e tha

t th e site i s clea n ("confirmator

y samples") . Base d o n th e result s ofth e NWTPH-HCID tests , do on e o f tiie following :

• If n o releas e ha s been reported , th e site appear s clean , and Metho d NWTPH-HCID show s tha t ther e i s n o gasbline , n o diese l or

heatin g oi l an d relate d products , n o Bunke r C and relate d product s an

d no wast e oil , the n i t i s no t necessar y to follow u

p wit h on e ofth e othe

r TP H methods . Thi s i s th e only cas e wher e a"non

detect " b y Metho d NWTPH-HCID ma y b e use d t o confir

mtha t you r site i s clean . I

n al l othe r case s yo u wil l b e require dt o us e on e ofth e other TPH test s on th e sample s take n t o sho w tha t cleanu p level s hav e bee

n met . • I f Metho d NWTPH-HCID show s tha t gasolin e i s present , but

tha t diesel , heatin g oil . Bunke

r C , wast e oil or other non-gasolin e hydrocarbon s ar e no t present , the n yo u mus t

us e th'e tes t

Metho d NWTPH-G

x o n sample s take n t o sho w tha

t cleanup level s hav e bee n met . • I f Metho d NWTPH-HCID show s tha t diese l o r heatin g oi l i s present , but

tha t gasolin e i s no t

present , the

n yo u mus t us e th e tes t

Metho dNWTPH-D x on sample s take n t o sho w tha t cleanu p level s hav e bee

n met . I f heavie r fraction s suc h a s Bunke

r C o r waste oil

- ar

e present , or

if amixtur e o f diese l o r heatin g oil an

d heavie r fraction s are present , the n you mus t als o us e Metho d NWTPH-D x . • If Metho dNWTPH-HCID show s tha t bot h gasolin e an

d diese l o

r heatin g oil or

othe r non-gasolin e hydrocarbon s are present , the n you mus t tu n TPH test s fo

r bot h type s o f product . Tha

t is , NWTPH-G

x mus t b e ru n fo r gasolin e andNWTPH-D x mus t be.ru n fo r th e non-gasolin e components .

UST Cleanu p Manua l 7 7 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Remembe r that th e purpos e ofth e NWTPH-HCID tes t i s to identif

y th e typ e o f

contaminatio n a

t your site an d shoul d b e performed , wheneve

r possible , o

n a n obviousl y contaminate d sample . Th e purpos e of NWTPH-G

x and NWTPH

D x i s t o measur

e ho w muc

h contaminatio n i s presen

t s o tha t you ca n determin e whethe

r o r no t th e soi l remainin g a

t th e site meet s th e Department' s soi l cleanup levels . Thes e test s shoul d b e performed on "confirmator y samples, " tha

t is , sample s collecte dafte

r you'think tha t th e cleanup ha s been completed . Th e following example s illustrat e som e ofth e situation s you ma

y find when usin g th e soi l matri x optio n an d ho w thes e differen

t situation s requir

e us e of differen t tes t methods . Althoug h thes e example s d o no t cove r al l possibl e situations , the y show ho w you shoul d approac h makin g decision s abou t wha t test s to request . Exampl e 1 : Yo u ar e decommissionin g atan

k a t astatio n wher

e n o releas e ha s been suspecte d o r reported . Whe

n th e tan k i s remove dthere ar

e n o obviou s sign s o f

arelease . You complet

e th e tank remova l an d tak e tw o confirmator

y sample s fromth e nativ e soil s belo w wher e th e end s ofth e tan

k use d t o be . Thes e sample s ar e sen t to th e laborator

y an d teste d b y metho dNWTPH-HCID . Cas e A - The tes t

result s are : Sample 1 = N D Sample 2 = N

D N o furthe r test s ar e necessar y if th e detectio n limit

i s les s tha n 40 ppm . Thi s i s sufficien

t t o sho w tha

t th e sit e i s clean . Note : Thi s i s th e ONL Y situatio n wher e NWTPH-HCI D result s wil l b e accepte d t o confir m tha t you rsit e i s clean . Cas e B - The tes t

result s are : Sample 1 = Gasoline

Sample 2 = N

D Thi s site mus t

b e reporte dto DE Q becaus e areleas e of gasolin e ha s bee n identified . Yo u mus t no w hav e Sampl e 1 teste d b y Metho dNWTPH-Gx . Cas e B l - The tes t

resul t is : Sample 1=3 5 ppmTP H a s gasoline . Sinc e th e contaminatio n i s belo W eve n th e mos t stringent cleanu p level fo r gasolm e (4 0 ppm) , n o cleanu

p wil l usually b e required . You don' t

hav e to determine amatri x scor e fo r thi s site , but

yo u d o hav e to sen

d amafri x repor t t o DEQ . Cas e B 2 - The tes t

resul t is : Sample 1 = 10

0 pp mTP H as gasoline . Whethe r cleanup unde

r th e soi l matrix optio n i s require d o r no t will depend o

n th e matrix scor

e ofth e site . Therefore , yo u mus t fill out amatrix scor

e sheet , an d compar e you r resul t to th e appropriat

e gasolin e valu e i

n th e rule s (OA

R 340-122-0335) . Fo

r instance , i f

thi s i s aLeve l 1 or

Level 2 site , cleanu

p woul d b e require d (sinc e th e 10 0 pp mTP H i s greater tha n either th e 40 pp mTP H gasolin e allowe d fo

r Level 1 o r th e 8 0 ppmTP

H gasolin e allowe d fo

r Leve l 2) . I f thi s i s aLevel 3 site , cleanu p would not

b e required . NOTES : I f your site i s lik e Cas e B excep t

tha t th e only contaminant

i s diesel , heatin g oil , o

r othe r heavie r fuels , and gasoline i s no t present , the n you wouldus e asimila r approach . The main differenc e is , sinc e you ar e dealing wit

h diese l o r heavy oi l contamination , you us e Metho d NWTPH-D x fo r measurin g th e concenfration ofth e fiiel in th e soil . T o determine -i f cleanu p level s hav e bee

n met , compar

e th e result

t o th e appropriat

e diesel cleanu

p level i n th e rules . If

th e sourc e o f th e contaminatio n include s wast e oil , or waste oi l i s suspected , the n you mus t als o perfor

mexfr atest s (solvents , leachabl e metals , an

dpossibly PCBs) .

US T Cleanu p Manua l 7 8 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m For site s wher e th e measure d TP

H level s excee d th e require d soi l matri x cleanu p levels , yo

u ma y eithe r clea n u p unde r th e soi l matri x option , o

r selec t on e ofth e othe

r remedia l actio n option s allowe d unde r th e US T cleanu

p rules . If you choos e a n altemativ e optio n (i.e. , low-impact , risk-based, or ageneri c remedy) , yo

u ma y b e abl e t

o clos e th e site withou t meetin g th e TP

H cleanup level s i

n th e matri x score . Refe

r t o OA R340-122-021 7 fo

r mor e informatio n abou

t th e other cleanup options . Yo u ma y us e a combinatio n o f cleanu p option s a t you rsite , s o yo u ma y b e abl e t o clea n par t o f you rsit e usin g th e soi l matri x optio n an d th e remainin g par t o f you rsit e unde ranothe rofth e allowabl e options . Refe rt o Sectio n 3.5 : Ho w t o Handl e Site s Wit h Multipl e Cleanu p Option s fo rmor e information . Exampl e 2 : Yo u ar e workin g a

t asite wher

e areleas e ha s occurre d an d ha s bee n reporte d to DEQ . Severa l tank s hav e been remove dfromth e pi t

an dth e soil s are obviousl y contaminated . You collec t on e o r mor e obviousl y contaminate d sample s fromth e pi t

t o characteriz e th e fypes o f contaminant s by havin g th e la b tes t the mb y metho d NWTPH-HCID . Cas e A - The tes t

result show s bot h gasoline an

d diesel . Afte r th e cleanup , yo u mus t

collec t a t leas t tw o confirmator

y sample s (on e pe

r each 150 squar

e feet ) fro mth e are atha

t wa s contaminated . Eac h sampl e mus t b e analyze d b

y bot h NWTPH-G

x and NWTPH-Dx . T o compl y wit h the mles , the result s ofth e NWTPH-G

x test s mus t

no t exceed th e appropriat

e gasoline cleanu

p leve l m d th e result s ofthe NWTPH-Dx test s mus t not exceedth e appropriat

e diesel cleanu

p level . Cas e B - The tes t

result show s bot h diesel an d heav y oil . Afte r performing th e cleanup , you mus t collec t a t leas t tw o confirmator

y sample s fromth e are atha t wa s contaminated . Eac h sampl e mus t

b e analyze dby NWTPH-Dx . Th e result mus t no t excee d th e diesel cleanu

p level . Exampl e 3 : You ar e cleanin g u

p asite wher

e severa l tank s hav e been removed . Ther e ar e tw o distinc t

area s of contamination , on e i n th e pi t wher e th e wast e oi l tan k wa s remove d an d one i n th e pi t wher e th e produc t

tank s wer e removed . Yo

u collec t a n obviousl y contaminate dsoi l sampl e fromeac h o f thes e tw o locations . I

n additio n t o NWTPH-HCI D fo r bot h samples , th e sampl e fromth e waste oi l pi t mus t b e analyze d fo

r polynuclea

r aromati c hydrocarbon s (PAHs) , volatil e chlorinate dorgani c hydrocarbon s (VOCs) , an d TCLP-metal s (cadmium , chromiuman d lead) . Cas e A - Tan

k pi t NWTPH-HCI

D indicate s onl

y gasoline . Wast e oil NWTPH-HCI

D indicate s onl

y 'lieavy " hydrocarbon s (i.e. , heavie r tha n diesel) . PAH , VO C an

d TCLP-metal s test s ar

e al l negative . Cleanup o f

contaminatio n shoul d procee din th e usua l fashion . Afte

r cleanup i s complete , confirmator y sample s from th e waste oi l locatio n mus t

b e analyze d by Metho d NWTPH-Dx . Th e resul t mus t no t excee d th e diese

l cleanup level . Confirmator

y sample s fromth e gasolin e tan k pi t mus t b e analyze d by Metho d NWTPH-Gx . The result s mus t no t excee dth e gasolin e cleanup level . Cas e B - Tan

k pit NWTPH-HCI

D indicate s onl

y gasoline . Wast e oil NWTPH-HCI

D indicate s onl

y heav y hydrocarbons . On e ofth e othe

r wast e oi l test s detect s non-pefroleu mcontaminants . If an y o f th e additiona

l waste oi l test s (PAHs , VOCs , o r TCLP-metals ) sho w detectabl e level s of contaminants , yo u mus t repor t thes e result s t o DEQ . We sugges t you discus s thes e result s wit h th e appropriat

e regiona l US T Cleanu

p projec t manage r befor e yo u submit

you r mafri x report . Dependin g on th e level s found , thi s sit e ma y requir e cleanup under another se t o f rules . You should , however , b e abl e t o procee d wit h th e cleanu

p ofth e gasoline contaminatio n since , in thi s example , i

t i s no t mixed wit h th e other contaminants . Afte

r th e gasolin e contamination i s cleane d up , take confirmator

y sample s an

d analyz e the mby Metho d NWTPH-Gx . UST Cleanu p Manua l 7 9 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Exampl e 4 : Yo u ar e workin g a

t acontaminate d site wher

e wate r ha s been foun

d i n th e tan k pit . Yo u pum p al l th e wate r fro mth e pi t into aholdin g tank . Whethe r or no t wate r retum s t o th e pit , yo u wil l hav e t o collec t acontaminate d soi l sampl e an d ru n a n NWTPH-HCID tes t

t o identif y th e fype o f

contaminant s a

t th e site . Cas e A - N o wate

r retum s t o th e pi

t an d afte r 2 4 hour s th e pit

remain s dry . Sinc e wate

r di d no t retu mt o th e pit

j you don' t

hav e t o collec t

awater sample to compl

y wit h th e Matri x rales. Yo

u shoul dprocee d wit

h th e Mafri

x cleanup an

d samplin g a s discusse d i

n previou s examples . The result s ofth e NWTPH

HCI D tes t wil l determin e wha

t test s t o us e fo

r th e confirmator

y samples . Cas e B - Yo

u se e wate r immediatel

y returning to th e tan

k pit . I n onl y abou t fou r hours ther e i s enoug h wate r fo r you t o easil

y collect awate r sample . Sinc e wate r i s obviousl

y returnin g to th e pit , yo

u must collect afresh wate

r sampl e as soo n a s possibl e rather tha n waitin g fo r 2 4 hours . Yo

u must analyz e thi s sample fo

r BTEX , MTB E and , if

th e releas e i s fromdiese

l o r heavie r products , als o PAHs . Yo u mus t als o collect

soi l sample s fromth e wall s ofth e tan k pi t a t the origina l soil/wate r interface an

d analyz e thes e fo

r BTE X as wel l a s fo r TP H using th e method s determine d b y th e NWTPH-HCI

D test . Yo u mus t repor t result s o f thes e test s an dthe DE Q wil l decid e whethe r thi s sit e ca n continue unde

r th e soi l matri x option , o

r whethe r investigation fo

r groundwate

r contamination wil

l b e required . Eve

n i f groundwate

r contaminatio

n i s detected , yo

u ma y still choos e t

o complet e cleanu p ofth e soil contaminatio

n usin g the matri x option . Yo

u would , however, als o have t o select anothe r optio n fo r dealin g wit h the groundwate

r contamination .

Note : I n al l case s wher e wate rha s bee n pumpe d fro m a n excavation , yo u wil l stil l hav e t o tes t th e wate rt o arrang e fo rappropriat e disposal . I f yo u improperl y dispos e o f contaminate d wate ryo u ma y b e assesse d significan t civi l penalties .

UST Cleanu p Manua l 8 0 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

Soi l Matri x Samplin g Decisio n Flowchar t

N O Repor t Releas e

Collect CONTAMINTE D Sample s Ru n HCI D (1 )

Clea n U p Sit e Collec t Confinnator

y Sample s TP H Tes t (2 ) N O

YE S Repor

t Releas e Ru n Prope r TP H Tes t (1) , (2 )

YE S

Submi t Matri x Repor

t (3 ) YE S

YE S Collect Confimiator y Sample s Ru n HCI D

N o Additiona l Testin g Submi t Repor

t •

NOTES : (1 ) I f wate ri n pi t o rwast e oi l release , extr a test s ar e required . (2 ) Prope rtes t depend s o n result s o f HCID . (3 ) I n som e cases , DE Q ma y reques t mor e informatio n o rmor e work .

US T Cleanu p Manua l 8 1 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Progra m 3.3.4 : Constituen t

Analysi s Wit h th e possibl e exceptio n ofth e soi l matri x option , yo u will no t b e basin g mos t

fma l cleanu p decision s o

n TP H result s alone . Rather , yo u wil l nee d t o coUec t dat ao n alarg e numbe

r of individua l pefroleu mconstituent s such a s BTEX , trimethylbenzenes , PAHs , MTBE , an d other constituents . Therefore , w e recommend tha t eve n i n the early stage s of your investigatio n wher

e yo u ma y b e focusin g o

n TPH , yo u shoul d conside

r havin g som

e ofth e wors t

TP H sample s sen

t of f fo r additiona l constituent

analysis . No t

ever y sampl e will nee d thi s s o you shoul d talk to you r laborator y about ho w man y sample s shoul d b e given additiona l tests . The additiona

l test s tha t yo u run o

n thes e sample s —bot

h soi l and wate

r —wil l depen d o

n anumbe r of factors includin g th e fype(s) o f

produc t release d a s well a s th e ag e ofth e release . At newe r station s tha

t hav e neve

r sold leadedproducts , i t

will no t b e necessar

y t o tes t fo r lead , ethylen e dibromide (EDB ) o r ethylen e dichloride (EDC) . I f onl y diese l ha s been released , i t ma y no t b e necessar

y t o tes t fo r MTBE . The NWTPH-HCID tes t along wit h som e knowledg e ofth e statio n histor y ca n hel p you decide wha

t fype of produc t yo u ar e dealin g wit

h and wha t fypes of test s ar e th e mos t appropriate . I f

contaminatio n i s frombot

h gasolin e an

d diesel , you wil l probably nee d to tes t fo r th e ful l suit e o f BTEX , frimethylbenzenes, PAHs , an d MTBE . I f

ther e i s an y evidenc e o f

areleas e fromawast

e oi l tank , yo

u ma y als o hav e t o tes t

fo r chlorinate d solvents , leachabl e metals , and , in som e cases , PCBs . The rales do no t

requir e yo u t o tes t

al l o f thes e constituent s a

t al l sites , but put th e burde n o

n yo u to tes t "fo r al l reasonably-likel y contaminant s o f conce mrelevant

t o th e pefroleu

mreleased , th e ag e ofth e release , an d th e mediu

m contaminate dtakin g int

o accoim t appropriate remediatio n levels " (OA R340-122-0218(l)(b)) . W e recommend tha

t you refe r to Tabl e 2. 1 i

n Risk-Base d Decisio n Makin g fo r th e Remediatio n o f

Petroleum-Contaminate d Site s (DEQ , Septembe r 22 , 2003 ) fo

r som e suggestion s o

n wha t to tes t fo r base d on th e fype of

produc t released . Tabl e 2. 2 in tha

t sam e document

list s th e appropriat

e analytica l method s tha

t you ca n us e t o tes t

fo r th e variou s group s of

constituents . Note : Ther e are tw o importan t point s t o kee p i n min d regardin g analytica l methods . Bot h ar e covere d I n OA R 340-122-021 8 an d relat e t o th e fact tha t a s tim e passes , bot h analytica l method s an d petroleu m product s change . (1 ) W e ma

y accep t altemativ e samplin g an d analytica l method s tha t hav e bee n show n t o b e appropriat e forth e contaminant s o f concer n an d th e medi a o f Interest , an d tha t have acceptabl e quality contro l measures , an d limit s o f detection . As new method s com e alon g —especiall y I f the y ar e faste ran d les s expensiv e —yo u ma y propos e t o us e the m as lon g a s the y are o f acceptabl e quality . Yo u shoul d always consul t wit h u s before applyin g an y new metho d tha t I s no t liste d i n th e rules . (2 ) W e ma

y request additiona l test s i f site-specifi c condition s wan-an t additiona l information . A s ne w additive s com e alon g o rnew toxicologica l Informatio n i s available , w e ma y decid e tha t w e nee d informatio n o n a fe w additiona l compound s befor e a decisio n ca n b e made . Likewise , som e compound s o rtest s ma y b e droppe d fro m th e list . Th e mai n Ide a i s t o tr

y t o kee p i n min d wha t compound s ar e likel y t o b e ther e an d what subse t o f thos e compound s ar

e likel y t o b e th e one s tha t coul d produc e unacceptabl e risk. 3.3.5 : Contaminant s of

Concer n Thi s topi c i s discusse din muc h mor e detai l i n Risk-Base d Decisio n Makin g fo r th e Remediation o f

Petroleum

Contaminate dSite s (DEQ , Septembe r 22 , 2003) . However , i

t i s wort h remindin g yo u here tha

t an y pefroleum

contaminate dsite wil

l hav e hundred s t o thousand s o f differen t chemica l constituent s disperse d i

n th e soi l an

d groundwater . It

i s no t you r jo b t o tr y t o analyz e al

l o f them . You

r goa l i s to tr y t o determin e th e concentratio n of a relativel y smal l grou

p of compound s i

n pefroleu mtha t ar e currently known t o b e toxi c an d to decide if

they ma y produc e unacceptabl e ris k

a t your site . Th e grou

p of compound s tha

t creat e a n unacceptabl e ris k

i s ofte n called th e US T Cleanu p Manual 8 2 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m contaminant s o f

conce m(COCs) . Thes e ar e th e compound s tha

t yo u nee d to focu s o

n whe n plannin g aremed

y fo r your site . 3.3.6 : Detectio n Limit s versu s RBC s When you ge

t databac k fro malaborator

y yo u shoul d do mor

e tha n jus t loo k a t th e sampl e results . I

t i s alway s agoo d ide at o examine th e detectio n limit s and th e qualif y assuranc e and qualif

y confro l sample s tha

t the la b ha s ran (such a s sampl e blank s an

d standards) . I f

yo u hav e question s about

thes e factor s yo u shoul d contac t you r laboratory . There ar e som e case s wher

e th e risk-base d concenfration fo r aparticula

r constituent

i s lowe r tha n ca n b e detecte d by fypical analytica

l methods . In tha

t case , a"non-detect " wil l b e considere d acceptabl e proo f tha t th e contaminan

t i s no t present even thoug h th e detectio n limi t i s abov e th e RBC . I

n other words , you ar

e not require d to tr

y t o find specia

l method s to lowe

r th e detectio n limi t

belo w commonl

y achievabl e limits . In som e cases , however , th e detectio n limit of asampl e ma

y b e unusually high . Thi s ofte n occur s whe

n th e sampl e i s highl y contaminated . Yo u shoul d check

wit h your la b about method s tha

t the y coul d us e to clea

n u p th e sampl e i n order

t o reduc e th e detectio n limit to withi n a

n acceptabl e range . 3.3.7 : Analytica l Metho d Question s an d Answer s Th e followin g question s an d answer s are include d t o help explai n some specifi c matter s relate d to analytica l method s tha t canno t b e covere dunder

th e fypes o f

genera l discussion s covere d i n th e previou s sections . Fo r additiona l genera l question s and answer s about th e US T cleanup rales pleas e refe r t o Sectio n 3.8 : Answer s to Commo n US T Cleanup Question s on pag e 93 . I' m plannin g t o us e risk-base d concentration s fo rth e cleanu p level s a t m y site . I s ther e an y reaso n t o als o tes t som e o f th e sample s fo rTPH ? Yes . TP H test s ar e neede d t o determin e th e nature , magnitude , and extent of pefroleu mcontaminatio n a

t your site . You shoul d us e NWTPH-HCI D to identif y tiie product , and NWTPH- G and/or NWTPH- D t o determine wher e i t i s locate dan

d measure ho w muc

h i s present . Thi s mus t

b e documente d eve

n i n case s wher

e riskbase ddecisio n makin g i s use dt o se t appropriat

e cleanup level s fo

r your site . I hav e notice d tha t th e Department' s Tabl e o f RBC s list s screenin g value s fo rsevera l compounds , suc h a s 1,2,4-trimethylbenzene , tha t w e hav e not bee n aske d t o tes t fo ri n th e past . Wh y have thes e compound s bee n added ? A s mentione dearlier , th e rales allo w u s t o reques t additiona l test s i f site-specifi c condition s warrant additiona l information . Durin g th e developmen t ofth e Tabl e o f

RBC s an d th e implementatio n of

risk-based decisio n making . Department staf f identifie d additiona

l contaminant s tha

t hav e frequentiy bee

n encountere d a t US T cleanu

p site s and hav e sufficien

t toxicif y to warran

t evaluation . T o provide fo

r thes e situations , we develope d RBC s fo

r fou r additional pefroleu

mconstituents : 1,2,4-trimethylbenzene ; 1,3,5-trimethylbenzene ; n-propylbenzene ; and iso-propylbenzene . Thes e compound s ar e include d o

n afiil l Metho d 8260 repor

t along wit h man y ofth e other

potential contaminant s o f

conce mtha

t w e are seeking . i f MTB E i s no t detecte d i n groundwater , i s i t necessar y t o analyz e fo ri t i n soil ? Conversely , I woul d no t b e comfortabl e m simpl y analyzin g fo rMTB E i n soi l (let s say i t wa s N D i n soil ) a t a groundwate rimpac t site . Dependin g o

n th e site , i t

ma y b e sufficien

t to screen out

MTB E b y only testin g fo r i t i n groundwater . I f present , however , we ma

y nee d soi l sample s t

o complet e th e evaluatio n of

certain risk

pathways . Sinc e MTB E i s include d i

n aMetho d 826 0 analysis , which i s ofte n use d a t US T site s to cove

r awide rang e o f

othe r pefroleu man dnon-pefroleumcontaminants , usin g thi s metho d woul d giv e yo u th e datayo

u need .

US T Cleanu p Manua l 8 3 Ma y 200 9^

Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m I f lea d i s no t detecte d i n soi l sample s a t a sit e wit h groundwate rcontamination , shoul d groundwate r sample s b e analyze d fo rlead ? Th e answe

r depend s o

n th e fype of

produc t an d ag e ofth e release . A

t newe r site s tha t hav e neve

r handle d leade dgasolin e product s yo u woul d no t

b e require d t o tes t

fo r lea d a t all . A t olde r site s wher e leade d product s ma y hav e been released , we d o ask fo r afiltered wate

r sampl e t o b e teste d fo

r lead . Th e tren d ha s bee n tha t DE Q asks th e consultan t t o analyz e th e "hottest " soi l (i.e. , th e soi l likel y t o have th e highes t concentrations) . Th e proble m i s tha t wit h hig h BTE X concentration s com e highe rdetectio n limits , an d a s a result , i t i s difficul t t o determin e i f concentration s o f ED B an d ED C reall y mee t screenin g values . Woul d i t b e bette rt o us e groundwate ra s a scree n fo rthes e constituents , a t leas t a t groundwate rimpac t sites ? Ther e wil l b e site s wher

e wha t yo u are proposin g i s probably th e bes t solutio n to th e problem . However , th e US T cleanup rule s stat

e tha t "sample s of

al l affected medi amus t

b e analyze d fo

r reasonably-likel y contaminant s o f

concem... " (OA

R340-122-0240(l)(c)) . Therefore , you hav e t o mak e th e bes t choic e forth e condition s a

t you r site . W e do recogniz e tha

t som e contaminant s ar

e mor e likel y to b e foun

d in groundwate

r tha n i n soi l an dwoul dtak

e tha t into accoun

t whe n reviewin g th e data . Th e proximif y ofth e contaminate d soi l t o th e groundwate

r woul dals o b e take n int

o account . ' Woul d DE Q pleas e clarif y th e date s the y believ e tha t additive s (EDB , EDC , an d MTBE ) wer e introduced/remove d fro m Oregon' s petroleu m marke t t o assis t i n th e selectio n o f constituen t analyses . MTB E andothe

r alcohol s wer

e first infroduce d a s gasolin e additive s in th e mid t o lat e 70's . Accordin g to EPA , thei r

us e significantly increase d in 1979 . Though no t formalize d in policy , th e US T progra mconsider s 197 5 a s th e cutof

f yea r fo r MTBE . Gasolin e release s afte r tha t dat e shoul d b e teste d fo

r MTBE . EDB an

d ED C wer e use da s lea

d scavenger s i n leade d gasolines . The y shoul d b e teste d a

t site s wher e release s o f

leaded gasolin e are suspected . Wit h th e method s tha t yo u referenc e fo rED B an d ED C (802 1 an d 8260 ) th e reportin g limits , especiall y i n th e cas e wher e ther e ar e hig h level s o f hydrocarbons , are quit e different . Ho w shoul d th e consultan t determin e th e metho d t o use ? Man y times , 826 0 i s used , bu t th e reportin g limit s ar e severa l orders o f magnitud e ove rth e risk-base d concentration . Whe n there i s achoic e of

analytica l methods , th e RB C mus t

b e take n into accoun

t when decidin g which metho dt o apply . If

n o metho di s abl e t o mee

t th e risk criteria , the n th e metho d wit h th e lowes t

detectio n limit shoul db e used . Th e consultant shoul d b e workin g wit

h a n experience d laborator

y fo r guidance . Whe

n possible , sufficientl

y lo w detectio n limit s shoul d b e applie d t o determin e th e occurrenc e and magnitud e of contaminant s a

t aUS T site . Metho d 827 0 fo rPAH s has reportin g level s a t 100-16 0 pp b fo rsoil , an d 5-1 0 pp b fo rwater . Thes e level s ar e significantl y highe rtha n usefu l whe n compare d t o th e Tabl e o f RBCs . M y concer n i s tha t consultant s ma y selec t o n th e basi s o f pric e an d no t conside rdetectio n limits . A s th e commen

t indicates , th e reportin g level s fo r Metho d 827 0 ar

e ofte n no t lo w enough t o determin e i f PAH concenfration s ar

e belo w th e RBCs . I

n tha t case , lab s ca

n apply 827 0 SI

M modified o

r 831 0 usin g HPL C to ge t bette r detectio n levels . Yo

u shoul d wor

k closely wit

h you r laborator y whe n dealin g wit

h matter s o f detectio n limits .

US T Cleanu p Manua l 8 4 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Wit h respec

t t o man y of th e organi c compound s i n 826 0 o r8021 , reachin g th e reportin g limi t require d fo r cleanu p ca n b e difficult , especiall y o n highl y contaminate d samples , i n som e cases , especiall y wher e 826 0 i s used , wit h interference s commonl y foun d i n petroleu m sites , th e reportin g limit s ar e no t reache d fo r RBCs . Wha t shoul d b e don e i n thi s case ? There are numerou s cleanu p technique s availabl e t o help , but eve n they ar e no t alway s adequate . Ther

e wil l b e case s wher

e th e bes t analytica l metho d an d cleanup combinatio n wil l stil l hav e reportin g limit s tha t ar e higher tha n th e RBCs . I

n thos e cases , non-detect s will usually hav e to suffice . Thes e situation s shoul d b e explaine d in th e repor

t tha t yo u submi t

t o th e Departmen

t tha t include s th e relevant

data .

US T Cleanu p Manua l 8 5 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 3.4 : SIT E CONTROL S Th e optio n o f

usin g site control s a s aremed y a t US T cleanup site s wa s made possibl e throug h legislativ e and rul e change s in 199 5 an

d1998 , respectively . Thes e change s allo w you t o "manag e risks " fromcontaminatio n a s a n altemativ e to cleanin g u

p th e site to appropriat

e risk-base d concenfrations . Ther e ar e tw o kind s o f

site confrol s —institutiona l confrol s an

d engineerin g confrols . Bot h ar e mean t to eliminat

e risks to huma

n healt h an dth e environment . • A n institutiona l contro l i s alega l mechanis mtha

t resfrict s activitie s on o

r around acontaminate d site . An exampl e o f

a n institutiona

l confro l i s adee d restrictio n prohibitin g well consfruction an d us e of groundwate

r a t asite wher

e contaminant

level s i n groimdwate

r excee d health-base d cleanu p levels . • A n engineerin g contro l eliminate s risks by usin g amechanica l syste mt o trap , freat, isolate , dilute , o r ven t of f contamination . A

n exampl e of

a n engineerin g confrol i s pavemen t use d a s aca

p ove r contaminate d soi l a s a mean s o f isolatin g th e soi l fromhuma n contact . I f yo u wan t to us e site confrol s a

t a n US T cleanu

p site , you mus t

mak e tha t proposa l i n aCAP.' ^ T o substitut

e site control s fo

r cleanup , you mus t

demonsfrat

e tha t th e confrol s you propos e wil l reduc e huma n healt h risks from individua l cancer-causin g contaminant s to belo w a1 x 10" * exces s cance r risk or , fo r non-cance

r causin g contaminants , t o belo w ahazar d quotien t (HQ ) o f 1 . Yo u mus t include enough discussio n to sho w ho w al l risk s ar e avoide dove

r time an d unde r all fypical circumstances . Yo u migh t do thi s throug h modelin g o r testing . Fo

r DE Q t o approv e th e us e o f

sit e confrols , they mus t

b e sufficientl

y protective , adequately maintained, , an d legally enforceable . I n addition , your

proposa l to us e site confrol s i s subjec t t o publi c notic e requirement s a s par t ofth e CA P document . Ever y sit e contro l mus t

hav e acorrespondin g site restrictio n t o ensur e tha t th e confro l i s properly maintained . I

n man y case s thi s i s handle d wit

h a n "equitabl e easemen

t an d servitude " (ESE , mor

e commonl

y referre d t o a s a"dee d ' restriction") . Th e ES E i s attache d t o th e properf y deed and recorde d by th e appropriat e counfy . Recordin g th e dee d restrictio n wit

h th e counf

y ensure s tha

t all futur e owner s ofth e properf

y ar e awar e of contaminatio n issues , potentia l restrictiori s on properf

y use , an d th e nee d to maintai n th e controls . I n som e case s th e restrictio n i s writte n int o th e no furthe r actio n (NFA ) letter

i n lie u o f usin g a n ESE . / Note : Institutiona l an d engineerin g control s ma y no t permanentl y encumbe ra property . I f futur e samplin g a t th e sit e wer e t o sho w tha t contaminan t level s ha d subside d t o belo w risk-based concentrations , thi s woul d allo w unrestricte d us e ofth e property , an d th e dee d restrictio n coul d b e removed . Fo r mor e information , pleas e refe

r t o Guidanc e fo r

Use o f Institutiona l Control s (DEQ , 1998) .

' ^ Provision s ar

e mad e for sit e control s unde

r th e low-impac

t sit e rule (OA R340-122-0243 ) a s well

, bu t the y ar e mor e restrictive . Refe

r t o Guidanc e fo r Applyin g th e Low-Impac

t Sit e Rul e t o US T Cleanu p Sites , DE Q (Januar y 2008) . US T Cleanu p Manua l 8 6 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 3.5 : Ho w T O HANDL E SITE S WIT H MULTIPL E CLEANU P OPTION S I n additio n t o providin g anumbe r o f option s fo

r cleanin g u

p petroleum-contaminate d sites , th e lates t versio n ofth e US T cleanup rule s (effectiv e November 2,1998 ) als o specificall

y allow s you t o us e an

y combination ofth e following thre e option s on asingl e site (se e OA R340-122-0217 ( 1 )(d)(E)) : • Th e soi l matti x optio n (OA R340-122-032 0 throug h 340-122-0360 )

• Risk-base dcleanup level s propose d unde r acorrectiv e actio n pla

n (OA R340-122-0244 an

d OA R340-122

- 0250) ; and/or • An y relevant generi c remed

y (OA R340-122-0252) . Fo r example , you ma

y hav e asite tha

t ha s bot h soi l an d groundwate

r contamination . The leve

l o f contaminatio

n i n the soil ma y b e suc h tha t i t coul db e cleaned u

p t o th e appropriat

e TP H level i n th e soi l matrix option . Eve n thoug h you r sit e has . groundwate

r contamination , you could still choos e to clea n u p th e vados e zone soil s using the soi l matri x option . Obviously , yo u woul d als o hav e t o dea l wit h th e groundwate

r contaminatio n sinc e th e soil mafri x optio n doe s no t cover groundwater . You ma

y findtha t wit h limite d groundwate

r freatment

o r wit h only groundwate

r monitorin g subsequent

t o th e soi l removal , tha

t th e groundwate

r a t your site eventuall y meet s eithe r th e generi c or

site-specifi c risk-base d concentrations . At tha t poin t yo u woul d b e abl e t o clos e your site unde r acombinatio n ofth e soi l matri x optio n an dth e risk-based option . 3.5.1 : Reportin g Requirement s I f there i s aproject

manage r assigned t o you

r project , you ma

y wan t t o as k if they hav e an

y preference s fo

r ho w to combin e th e report s when tw o option s ar e used . Generally , th e fma

l repor t wil l need to includ

e th e minimu

mreportin g requirement s fo

r eac h section . Using th e example mentioned above , tha t mean s tha t th e section tha

t discusse s th e soi l cleanup mus t

include al l ofth e reportin g requirement s o f asoi l matri x report , an

d th e sectio n tha

t discusse s groundwater . remediatio n mus t

include al l o f

reportin g requirement s of

arisk base d proposa

l unde r acorrectiv e action plan . 3.5.2 : Publi c Participatio n Ifan y ofth e option s employe d a t your site require publi c participation , the n suc h participatio n will b e require d fo r th e project . So , fo

r example , i f

yo u decid e t o us e site-specifi c risk-basedconcenfration s fo r th e groundwater contamination , the n th e publi c participatio n requirement s o f OA R340-122-026 0 woul d apply t o th e site . 3.5.3 : Wha t

abou t Low-Impac t

Sites ? Th e low-impac t

site optio n (OA

R340-122-0243 ) wa s designe d t o b e implemente d i n it s entiref y a t asit e an d therefor e canno t b e use dwit

h th e other

options . Tha

t doe s no t mean , however , tha

t i f yo u decide t o tr

y th e LI S optio n tha

t yo u ar e trappe di n tha

t option . Yo u alway s hav e th e choic e to mov e your projec t completely ou

t ofth e LI S optio n and appl y another

optio n o r se t o f option s t o it . For

example , mayb e you thought tha t you coul d clos e you

r sit e unde r th e LI S option , bu t

later foun d tha t i t wa s goin g t o b e to o difficult or expensiv e t o mee

t th e requirements . It

ma y b e tha t examinatio n ofth e dat awoul dshow tha t wit h adifferen

t level o f effor t yo u woul d b e abl e to hav e you r sit e mee t th e requirement s o f

arisk-based closure . In tha t cas e you woul d simply abando n th e LI S closur e an d procee d unde

r th e risk-base dclosure . 3.5.4 : Analytica l Requirement s Sinc e no t al l ofth e option s hav e exactl y th e sam e analytica l requirements , moving fromone optio n to anothe r o n par t or all o f your site migh t require you t o g o back

an d collec t additiona l samples . That' s jus t

one ofth e factor s tha

t yo u wil l hav e to keep in min d when decidin g on th e bes t optio n o r se t o f option s t o us e fo

r closin g you

r site . I n mos t cases , however , w e fee

l tha t thi s additiona

l flexibilify wil l b e beneficia l i n th e long run . US T Cleanu p Manua l 8 7 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 3.6 : HANDLIN G AN D TREATIN G PETROLEUM-CONTAMINATE D SOI L Thi s guidanc e i s designe d t o giv e a n overvie w of

option s availabl e fo

r treatin g pefroleum-contaminated soil s (PCS) . 3.6.1 : Genera l Informatio n Befor e removin g a

n undergroun d storag e tan

k (UST) , you shoul d look

a t th e man y factors involve d i

n decidin g wha

t cleanu p optio n t o use . Plannin g wil l sav e you bot h time an d money . Whe n you find contamination , yo u mus t mak e som e difficul t decisions . Should cleanu

p begi n immediatel

y o r i s furthe r investigatio n required ? Shoul d th e contaminatio n b e remove d o r i s i t possibl e to freat

i t in-place ? Wil

l you r busines s b e undul

y interrapte d i f

soi l freatment

occur s on-site ? Are there potentia l busines s implications , such a s long-ter mliabilify , insuranc e requirements , an d futur e salabilif y ofth e properfy , etc . tha

t shoul d b e considere d whe

n selectin g th e cleanu

p method ? Becaus e cleanup s ar e complex and man

y option s ar

e available , th e service s of a qualifie dconsultan

t ar e ofte n usefu l whe n developin g cleanup sfrategie s othe r tha n simpl e remova

l of th e contaminate dsoils . - You shouldb e awar

e tha t th e Department

will no t b e abl e to complet

e final review an

d closur e on your cleanu p projec t unti l freatment

and reus e or

disposa l ofal l contaminate d soil s ha s take n place . Sinc e som e option s tak

e longe r t o complet e tha n others , thi s ma

y als o b e afacto

r i n your decisio n o f

ho w t o handl e th e contaminate d soil . Thi s guidanc e give s severa l option s fo

r handlin g petroleum-contaminate d soils , but som e ar e mor e desirabl e tha

n other s are . Fro ma

n environmenta

l perspective , th e Departmen t sfrongl y encourage s you to selec t

afreatment

metho d tha t actually desfroy s contaminatio n rather tha n transferrin g i

t fromon e mediumto anothe r (e.g. , fromsoi l t o air) . I

n addition , effective freatment o f soil s wil l le

t yo u reus e th e soi l fo

r othe r purpose s (wit

h som e restrictions) . Th

e Departmen

t wil l loo k fo r carefu l justificatio n i f

yo u propos e t o us e a

n optio n which i s environmentally les s desirable . 3.6.2 : In-PIac e Soil Treatmen t Man y method s fo

r cleanin g u

p soi l contaminatio n i

n place , o r "i n situ, " hav e been used successfully . Wjt h i n sit u treatment , contaminate dsoil s ar e no t remove d an

d suc h technique s a s vapor

exfraction an

d biologica

l freatment

ma y b e used . Typically , i

n sit u freatment

ca n b e expensiv e but

become s mor

e cos t effective whe

n larg e amount s o f contaminatio n ar

e present or woul d b e difficul

t to remove . In sit u freatment

method s are primarily use d wit h complex cleanu

p project s an

d ofte n requir e tha t you submit

aCAP . T o properly prepar

e aCAP , you usuall y hav e to d o extensiv e subsurfac e investigatio n to define th e exten t o f th e contamination . Se

e Sectio n 2.5 : Summar

y o f Each Rul e an

d Sectio n 3.1 : Writin g Cleanu p Report s an

d Correctiv e Actio n Plan s fo

r mor e informatio n on developin g CAPs . Onc e yo u hav e determmed th e ful l exten t o f th e contamination , yo

u ca n develop reasonabl e cleanu p options . If

yo u choos e to pursu e i

n sit u soi l freatment

throug h a CAP , yo u shoul dcontac t

th e DE Q regiona

l offic e tha t ha s jurisdictio n fo

r you r cleanu p project t o discus s th e detail s of wha t will b e required . 3.6.3 : Soil Removal If soi l remova

l appear s t o b e th e bes t

metho d fo r soil cleanup , you mus t

decide ho w t

o manag e th e soils . Onc e th e soil s ar e removedfromth e pit , they ca n b e take n t o a

n authorize d facilif

y fo r freatment o r disposa l o r independentiy freated (by yo u o r you r consultant) . If

th e soil s ar

e t o b e independentiy freated, you mus t tak e precaution s t o preven

t advers e environmenta

l impact s o

r nuisanc e conditions . - Yo u ca n stockpil e contaminate d soil s only on atemporar y basi s whil e making arrangement s fo r disposa l o r freatment. Durin g thi s time , soil s mus t b e place d withi n asecur

e (e.g . fenced) , lined , an

d bermed are aan

d kep t covered a t all times . Yo u hav e thirf

y (30 ) day s t o either

dispos e ofth e soil s a

t a n authorize d facilif

y o r t o obtai n asoli d waste US T Cleanu p Manua l 8 8 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m treatmen t permi t fro mth e Departmen

t (se e Sectio n 1.4 : Permit Requirement s fo

r US T Cleanu

p Sites) . Loca

l jurisdiction s ma

y hav e differen

t requirement s fo

r ho w - o r if

- soi l treatment

or stockpilin g ma

y occur . Check

wit h loca l lan dus e authoritie s befor e beginnin g an

y freatment

t o ensur e tha t thi s i s allowe d a

t you r site . 3.6.3.1 : Landfil l Disposal - Ideally , no contaminate d soil s woul d b e dispose d o f i n alandfill sinc e thi s result s in th e proble mbein g movedfromon e locatio n t o another . Also , shoul d ther e b e problem s wit

h th e landfil

l i n th e future , o

r if cleanup o f

th e landfill shoul d b e required , person s wh o dispose d of contaminate d soi l i

n th e landfil

l ma y b e hel d partiall y responsibl e fo

r cleanu p costs . However , unti l othe r disposa l an d freatment

method s becom

e readily available , landfil l disposa

l ma y b e th e mos t

cost-effectiv e optio n fo

r som e cleanu p projects . Individua l landfill s ma

y hav e specifi c requirement s yo u mus t mee t befor e disposa l i s allowed . If

landfil l disposa l i s th e optio n you choose , contac t th e landfill operato r

in advanc e - you ma

y b e abl e t o coordinat

e samplin g efforts to meet bot h landfill and Department

requirement s a

t th e same time . 3.6.3.2 : Therma l Treatmen t ("Soi l Cooker" ) - Therma l freatment

i s abette r environmenta

l solution tha

n aeratio n o

r landfil l disposal . It

desfroy s th e contaminant s rather than fransferring themt o ai r o r possibly t o landfil

l leachate . Thi s freatment metho d ma

y reduc e your

futur e liabilif y fo r th e contaminate d soil s (th e "cradle-to-grave " philosophy) . Contaminate d soi l ca

n b e treate d o

n sit e usin g amobil e uni t

o r ca n b e transporte d t o astationar y facilify . 3.6.3.2.1 : Mobil e Unit

- A mobil e unit

i s especiall y usefu

l fo r site s tha t ar e fa r from apermanen

t therma l freatment facilif y o r alandfill . I

t ma y sav e o r reduc e cost s o f

haulin g th e contaminated soil . However , you mus t ensur e tha t your treatment site i s suitabl e fo

r th e freatment

equipment . You wil l nee d to contac t loca l land us e authoritie s to mak e sur e thi s activif y i s allowe d on you

r site . You mus t

giv e specifi c information about th e us e o f th e mobil e unit

t o th e Department . A soli d waste permi t fromth e Department

i s require d (se e Sectio n 1.4 : Permi t Requirement s fo

r US T Cleanup Sites) . Ther

e ar e som e restriction s o n ho w th e treate d soi l ca n b e reused . Contac t

your regiona l DE Q offic e fo r mor e information . 3.6.3.2.2 : Permanen t

Facility - A permanent

facilif y operate s similarly to alandfill from a"user " perspective . Yo u mus t tel l th e facilif

y wher e th e contaminate d soil s cam e froman d provide contaminatio n levels . Onc e you r applicatio n ha s bee n approved , yo

u take th e contaminate d soil s to th e facilif y fo r processing . You

r involvemen

t i s the n over , unles s yo u mak

e arrangement s to reus e th e freatedsoil . Contac t th e specifi c facilitie s fo

r mor e information on thei r requirements . 3.6.3.3 : Above-Groun d Biologica l Treatmen t

("Bioremediation" ) - Thi s freatment metho d i s excellen

t fo r gasoline contaminatio n and work s relativel y well fo r diesel , wast

e oil , an d othe r heavy hydrocarbo n contamination which doe s no t aerate readily . Sinc e thi s freatment actually desfroy s th e contaminants , thi s metho d reduce s long-ter mliabilif y an d i s abetter environmenta

l solutio n tha

n soi l aeratio n or

landfill disposal . However , unles s you ar e freating alarg e amount o f soil , bioremediatio n ca

n b e arelativel y costl y wa

y t o dea l wit h contamination . The service s of aqualifie d consultant are usuall y necessar

y to desig n a

n appropriate freatment

system . A soli d wast

e permit fromth e Departmen

t i s require d(se e Sectio n 1.4 : Permit Requirement s fo

r US T Cleanu

p Sites) . There ar

e som e resfriction s o

n ho w th e freatedsoi l can b e reused . Contac t your regional DE Q offic e fo

r mor e information . 3.6.3.4 : Soi l Aeratio n - In thi s metho d hydrocarbon s evaporat e int o th e atmosphere . Fo

r tha t reason i t i s no t preferred environmentally . Thi s fype of freatment

release s hydrocarbon s int o th e air , contributin g t o the formation o f photochemica

l smo g (ozone) . Also , gasolin e contain s benzene , acarcinogen , which i s als o released int o the ai r durin g aeration . Aeratio n work s bes t fo r gasoline-contaminate d soils . I t ha s limite d succes s wit

h diesel o

r heavie r hydrocarbon s becaus e o f

thei r low volatilify ; fo

r them , soi l aeratio n i s ver

y slo w o r require s frequen

t maintenanc e (tilling , etc. ) and often doe s no t wor k a t all . Aeratio n o f

gasoline-contaminate d soil s work s bes t o n sand y or silf y soil s wit h low cla y content , an

d i s mos t effectiv e i

n warm , dr

y weather .

UST Cleanu p Manua l 8 9 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit

y - Undergroun d Storag e Tan k Progra m While soi l aeratio n ma

y sometime s b e alowe

r cos t freatment option , i t i s by n o mean s a"n o cost " procedure . I t involve s mor e tha n jus t spreading o

r piling th e soi

l an d lettin g i t si t The proces s require s th e us e o f specific confrol s to preven

t othe r problems . Considerable wor k i s needed to ensur

e tha t freatment i s effectiv e i n reducing contaminan

t concenfration s to a n acceptabl e level . Soi

l aeration should includ

e active freatment

measure s suc

h as tilling o

r usin g piping an

d pump s to push/pull ai

r through th e soil . The Departmen t ma y no t approv e project s tha

t involve th e us e of

"passiv e aeration" . A solid wast e permit fromth e Departmen

t i s required (see Section 1.4 : Pemiit Requirements fo

r US T Cleanu

p Sites) . Ther

e ar e som e restriction s o

n how th e freated soil ca

n b e reused . Contact

you r regiona l DE Q offic e fo r mor e information . Mor

e detail s o n ho w to conduct

soi l aeration ar

e i n th e guidanc e documen

t Treatmen t o f Petroleum-Contaminate d Soil s (DEQ , June 2007) . 3.6.4 : Summar y Becaus e treatment

condition s fo

r eac h site ar

e unique , th e specifi c requirement s liste d i n thi s documen

t ma y b e mor e o r les s stringent

tha n wha t i s actually neede d fo

r your site . Carefu

l coordinatio n an

d prio r approva l fromyou r loca l DE Q regiona

l office a t specifi c point s i n th e freatment proces s i s exfremel

y important . Yo

u mus t coordinat e soil freatment activitie s wit

h th e Departmen

t throughout

th e projec t

an d receiv e approva

l befor e movin g an y contaminated o

r freatedsoil s off-site . Regardles s ofth e freatment methods , ther

e ar e som e resfriction s o

n how yo u ca n reus e th e freated soil . Contact

you r regiona l DEQ office fo

r mor e information . Note: Th e Departmen t wil l not mak e a final determinatio n tha t "n o furthe ractio n i s required " fo rth e entir e cleanu p projec t unti l yo u have adequatel y addresse d an d documente d al l detail s regardin g th e treate d soils . Direc t al l question s abou t specifi c treatmen t projects , permi t requirements and/o rfonn s t o th e regiona l office tha t ha s jurisdictio n fo rth e cleanu p projec t associate d wit h you rsoi l treatmen t plan . Se e Sectio n 1.2 : US T Progra m Office s fo roffice location s an d phon e numbers .

US T Cleanu p Manua l 9 0 , Ma y 200 9Orego n Departmen t of Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 3.7 : SAMPL E CALCULATION S FO R AI R EMISSION S A s discusse d i n Sectio n 1.4 : Permi t Requirement s fo r

US T Cleanu p Sites , yo u mus t giv e u s prio r

notic e i f you r propose d metho d o f

cleanu p wil l produc e emission s t o ai r (suc h a s ai r

sfripper s o r

vapo r exfractio n systems) . Yo u mus t als o calculat e th e system' s emissio n rat e t o determin e i f yo u wil l b e require d t o obtai n a n Ai r Qualif y Permit . Althoug h mos t

US T remediatio n system s wil l no t excee d th e limit s necessar y fo r apermit , man y o f

thes e system s d o hav e th e potentia l o f

causin g nuisanc e condition s o r impactin g th e healt h an d safef y o f individual s workin g o r

residin g i n th e vicinif

y o f th e site . Therefore , w e als o as k tha t yo u evaluat e potentia l huma n healt h risks resultin g from exposur e t o hazardou s ai r pollutant s discharge dfro myou r remediatio n system . Thi s sectio n provide s yo u wit h a n exampl e o f

ho w yo u ca n us e you r

ai r sampl e dat at o mak e thes e calculations . 3.7. 1 Conversio n Factor s Analytica l Resu h Conversion s T o conver t

ai r sampl e result s reporte d i n part s pe r millio n b y volum e (ppmv ) t o milligram s pe r cubi c mete r

(mg/m^ ) fo r an y ofth e compound s liste di n th e tabl e below , simpl y multipl y th e ppm v resul t b y th e give n factor'^ . Compoun d Benzen e Toluen e Ethylbenzen e Xylene s Trimethylbenzene s TPH-G^ " T o obtai n a n ai rconcentratio n i n mg/m' , multipl y th e ai rconcentratio n i n ppm vb y th e followin g number .

3.2 5 (mg/m^ppmv 3.8 3 4.4 0 4.4 0 4.9 9 4.1 6 Example : I f

a n ai r sampl e i s reporte dt o contai n 2. 5 ppm v o f benzene , th e concenfratio n i n mg/ mwil l b e 2. 5 ppm v benzen e x 3.2 5 (mg/m^)/ppm v = 8. 1 mg/m ^ benzen e Volum e an dMas s Conversion s 1 cubi c mete r (m^ ) = 0.028 3 cubi c fee t (ft^ ) Im ^ =100 0 liter s (L ) lgram(g) = 100 0 milligram s (mg ) 1 m g = 100 0 microgram s (p-g ) 1 poun d (lb ) = 45 4 g

' ^ Th e ful l conversio n equatio n is : Concentratio n (mg/m^ ) = (ppm v x compoun d molecula

r weigh t i n g/mol ) / 24.055 , wher

e 24.05 5 i s the produc t

ofth e idea l ga s la

w constan t

(0.082 1 L-atm/K-mol) an d an assume d temperatur e o f 2 0 degree s C (29 3 K) . Therefore , th

e factor s liste din th e tabl e ar e derive db y dividin g the compound molecula r weigh t b y 24.055 .

'' ' Heptan e (M

W = 10 0 g/mol ) i s use da s asurrogat e fo r gasolin e in the calculatio n fo r TPH-G . US T Cleanu p Manua l 9 1 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 3.7.2 : Exampl e Calculatio n Problem : Yo

u hav e installe d asoi l vapo r exfraction syste

mo n you r site tha t use s a20 0 cubi c fee

t pe r minut e (cfin) blowe r to discharg e th e vapors . A sampl e of air fromyou r syste mi s foun d to contain abenzene concentratio n o f 15. 5 ppm v an daTPH- G concenfration o f 504 8 ppmv . Calculat

e th e pound s o f

benzen e an

d TPH-G' ' discharge d daily . Doe s th e concenfration of

benzen e bein g emitte d fromyou r syste mexcee d th e acceptabl e risk-based ai r concentratio n fo r benzen e o f

0.3 0 i^g/m^? Solutio n Firs t us e th e conversio n factor s i n th e tabl e t o conver t th e concentratio n to mg/m^ . Benzen e concenfration = 15. 5 ppm v x 3.2 5 (mg/m^)/ppm

v = 50. 4 mg/m ' TPH- G concenfration = 5,04 8 ppm v x 4.1 6 (mg/m')/ppm

y = 21,00 0 mg/m ' Next , determin e th e total volum e of ai r discharge d i

n one day . Volum e o f ai r discharge d = 20 0 ft^/min x 0.028 3 m'/ft ' x 1440min/da y = 8150mVda

y Finally , multiply th e abov e answer s and conver t fromgram s to pound s t o obtain th e desired : emissio n rates . Mas s o f Benzen e Discharge d = 8150m'/da y x 50. 4 mg/m ' x 1 g/l,000m g x 1 lb/45 4 g

= 0. 9 lb/da

y Mas s o f TP H Discharge d = 815 0 m'/day x 21,00 0 mg/m ' x 1 g/1,00 0 m g x 1 lb/45 4 g

= 37 6 lb/da

y Not e tha t in th e firs t ste p you calculate d abenzen e concentratio n o f 50. 4 mg/m' . If

you conver

t thi s to pg/m ' yo u ca

n compar e th e result

to th e risk-based standar

d o f 0.3 0 ng/m' . 50. 4 mg/m ' X 100

0 pg/mg = 50,40 0 jig/m ' I t shoul d no t

b e to o surprisin g t o se e tha t discharg e concentration s fromatreatment syste mar e ofte n wel l in exces s of risk-based standards . Wha t w e hav e no t

take n int o accoun t in thi s exampl e i s mixing ofth e emission s wit h ambien t air , which cause s th e concenfration s t o drop . Yo u ma y nee d to estimat

e th e on-sit

e o r off-sit e ai r concenfration s b

y usin g a n air discharg e model , or

b y collectin g ambien

t ai r samples . Whe

n designin g you

r syste mi t i s als o ver

y importan t to conside r th e locatio n an

d heigh t o f emission stacks . Thi s ca

n hav e asignifican

t impact o n th e potentia

l fo r suc h emission s to creat

e nuisanc e o

r healt h risk condition s and shoul d b e discusse d wit h th e regiona

l projec t manage r assigne d to your

site .

Th e TPH- G measuremen

t i s use d t o represen t th e tota l volatil e organic carbon s (VOCs

) bein g emitte d UST Cleanu p Manua l 9 2 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 3.8 : ANSWER S T O COMMO N US T CLEANU P QUESTION S Fo radditiona l question s an d answer s pleas e refe rt o Sectio n 3.3.7 : Analytica l Metho d Question s an d Answer s o n pag e 83 . I starte d m y projec

t befor e th e Departmen t mad e th e lates t change s t o th e cleanu p rules . Do I have t o follo w th e ol d se t o f rule s o rth e ne w set ? Tha t depend s o

n where you ar

e i n your project . In general , i f

yo u ar e stil l in th e earl

y stage s of

aprojec t yo u shoul dswitc h to th e ne w rules . However , i f you ar e alread y workin g unde

r a n approve d cleanup plan , yo u ma y continu e under

th e ol d rales. See Sectio n 1.3 : Transitio n Polic y fo r Ongoing US T Cleanu

p Project s fo

r additiona l details . Man y UST site s hav e bee n assesse d an d ar e currentl y o n long-ter m groundwate rmonitorin g programs . Man y ofth e analytica l dat a collecte d fro m soi l sample s a t thes e site s ar e TP H quantification s an d ar e no t constituen t specific . Wil l thes e site s b e considere d fo rrisk-base d closure s (suc h a s lo w impact ) withou t th e extr a cos t o f goin g ou t t o collect additiona l soi l sample s fo rconstituent-specifi c analysis ? A blanke t statement canno t b e made about

ho w t o handl e thes e sites . In som e case s additiona

l soil s sample s wil l probabl y b e require dt o asses s certai n soil-relate d risk pathways . Othe

r site s ma y no t hav e an y soi l pathway s that

needt o b e addressed . Th e decisio n regardin g additiona l sample s wil

l depend on th e conceptua

l mode l fo r th e site . Not e als o that

under th e US T Program' s Transitio n Polic y fo r Ongoin g USTCIeanu

p Projects , site s "whic h were operatin g under

aDepartment-approve d cleanup pla n prior to 1 1 /2/9 8 ma

y continu e unde

r th e approved plan includin g eventual closur e base d o n cleanup level s and requirement s in effec t a t tha t time th e pla

n wa s approved. " Therefore , th e pas t regulator y histor y ofth e sit e ma

y als o affec

t wha t i s required . Th e way th e new rule s ar e written , i t sound s lik e I ca n us e a combinatio n o f cleanu p option s t o complet e my cleanup . I s tha t true ? Yes . T o summariz e wha

t i s state d i n OA R340-122-0217(l)(d)(E) , yo u ma y us e an y combinatio n of

thre e option s —th e soi l matri x option , th e risk-based option , and/or ageneri c remed

y —t o remediat

e an y given site . Th e only optio n that

canno t b e use d alon g wit

h th e other s i s th e low-impac t site option . Tha

t particula r optio n ha s aspecia

l applicatio n an

d mus t b e use d i n a

n "al l o r none " fashion . For

mor e information see Sectio n 3.5 : Ho w t o Handl e Site s Wit h Multipl e Cleanup Options : Wh o decide s wha t cleanu p optio n i s bes t fo rmy site ? You shoul d mak

e thi s decisio n alon g wit

h your consultant

or confractor . Note tha

t th e decisio n ma

y b e mad e a t severa l point s i n th e cleanup proces s and you ma y chang e you

r approach a s mor

e informatio n i s gathered . I f th e releas e i s obviousl y verymino r and resfricte d t o th e soils , suc h a s in atan k decommissioning , you ma

y decid e right

awa y t o g o wit

h th e soil matri x option . I n som e cases , th e decisio n o

n wha t cleanup approach t o take ma y no t b e reache d unti l initia

l respons e an

d abatemen

t measure s hav e bee

n taken an d investigativ e wor

k show s th e ful

l exten t o f contamination. . Ca n 1 us e an y analytica l method s othe rtha n thos e liste d i n th e rules ? Yes . Durin g th e sit e investigatio n you ma y us e an y metho d (e.g. , visual , combustibl e ga s indicator s o r othe r field instruments , etc. ) t o trac k an d determine th e extent

o f soi l contamination . Whe

n yo u collec t datato show tha t your site i s in complianc e wit

h agiven set

o f cleanup levels , the n yo

u mus t us e th e method s specified in OA R340-122-0218 . US T Cleanu p Manua l 9 3 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m Ca n I us e th e soi l matri x optio n fo rwast e oi l contaminate d soil ? Maybe , but

you mus t first analyz e soil s contaminate d b y release s o f

wast e oi l fromUST s fo

r polynuclea

r aromati c hydrocarbons , volatil e aromati c solvents , and leachabl e metal s (cadmium , chromiumand lead ) i n additio n to th e usua

l test s fo r total petroleu mhydrocarbons . If th e waste oi l tan

k wa s used fo

r purpose s othe

r tha n exclusively storin g automotiv e waste oils , the n you mus t als o analyz e fo

r polychlorinate d biphenyl s (PCBs) . You shoul dus e ahighly contaminate d sampl e fo r thes e analyses . If

i t ca n b e clearly show n tha

t th e only compound s present

ar e petroleumproducts , the n DE Q wil l usuall y allo w th e mafri x optio n fo

r thi s soil . I f chlorinate dhydrocarbon s o r other non-pefroleumhazardou s substance s ar e present , i t ma y b e necessar

y t o refe r th e projec t

t o anothe r progra mi n th e Department' s Environmenta l Cleanu p Divisio n to complet

e th e cleanup . In mos t

cases , yo u ca n stil l complete th e cleanu p of th e petroleumcontaminatio n unde r th e US T Cleanu p rales. I remove d contaminate d soi l fro m th e tan k pit . Ca n I jus t aerat e i t o n my propert y an d the n pu t thi s soi l bac k int o th e pit ? > Firs t ofall , you mus t

obtain aSoli d Wast

e Letter Authorizatio n (SWLA ) fo

r on-site soi l freatment. Refe r t o Sectio n 1.4 : Permit

Requirement s fo

r US T Cleanu

p Site s fo r mor e information . I f

your properf y i s a n appropriate location'* , you ma y b e allowe d t o freat

i t there under

certai n conditions . Yo

u wil l usually b e allowe d to freat

such soil s on-sit

e fo r six month s to one year . Stockpilin g soil s on-site fo r lon g period s o

f tim e without freatment i s no t allowed . Afte

r freatment, i f

prope r samplin g and testin g sho w tha t TP H level s in th e soi l don' t excee d th e cleanu

p standar d fo r tha t site , yo u ma

y retu mth e soil s t o th e pit . However , yo u ma y retu mthes e soil s onl

y i f yo u plac e the mabov e th e seasona l hig h water

tabl e mark , an

d als o if yo u ca n stil l cove r the mwit h enough clea

n soi l to preven t

fiiture huma

n contact . Department

polic y doe s no t

allo w such soil s t o b e reuse d i

n a100-yea

r floodplain . Se e als o Sectio n 3.6 : Handlin g an d Treatin g Pefroleum

Contaminate dSoil an

dSectio n 1.5 : Polic y fo

r Reus e o f Pefroleu mContaminate d Soil . I a m doin g a tan k

decommissionin g an d everythin g look s completel y clean . D o I stil l hav e t o tak e samples ? I f so , wha t kin d an d how many ? Yes , yo u ar

e require d t o collec t

samples . Th e tan

k decommissionin g rales (OA R340-150-0130 ) requir

e you t o collec t an danalyz e sample s a s specifie d in th e soi l mafri x optio n to demonstrat

e tha t th e sit e was no t contaminate dwit

h pefroleu mproduct s a

t th e tim e ofth e decommissioning . Wha t i f my soi l sample s are foun d t o contai n som e contaminatio n bu t th e level s ar e alread y below th e require d cleanu p level s fo rth e cleanu p optio n tha t I have chosen ? I f Metho dNWTPH-HCI

D ca n detec t you r soi l contaminants , yo u mus t repor t th e releas e to DEQ . Thi s i s becaus e OA

R340-122-0220(l)(a ) require s you t o repor t to DE Q al l below-groun d release s in an y amoun t fromapefroleu

mUS T withi n 24 hour s afte r you discove

r themor confir mthei r presenc e throug h testing . However , i f

you r investigatio n i s complet

e and th e datashow tha

t contaminant

level s ar e alread y belo w th e cleanup level s fo

r you r site , no cleanup wil l usually b e necessary .

' * B y "appropriat

e " w e mea n tha t i t i s alocatio

n wher e th e aeratio n ofth e petroleum-contaminate

d soil ca n b e carrie d ou

t withou t creating nuisanc

e conditions o

r unacceptabl

e risks , t o huma n health , an d ca

n b e monitore d and teste d a s required i

n th e SWL A permit UST Cleanu p Manua l 9 4 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m Whe n th e DE Q firs t cam e ou t wit h risk-base d guidanc e i n 1996 , th e generi c standard s forth e indoo rai r pathway wer e s o lo w tha t the y stoppe d man y project s i n thei rtracks . Th e number s i n th e newe rguidanc e documen t ar e muc h better , bu t ther e i s stil l a lo t o f confusio n abou t wha t t o d o fo rfieldwor k t o prov e tha t th e indoo rai rpathwa

y i s no t reall y a threat ? Wha t d o yo u suggest ? Unfortunately , w e ar

e stil l tryin g t o figur

e out th e bes t approac h fo

r thi s situation . W

e hav e suggeste d and allowe dsoi l ga s monitorin g and indoo r ai r monitorin g t o help u s figur e out wha t i s happening o

n asite

specifi c basis . W

e hav e als o use d modelin g to estimat e exposures . (Pleas e refe

r t o Risk-Base d Decisio n Makin g fo r

th e Remediatio n o f

Petroleum-Contaminate d Site s (DE Q Septembe r 22 , 2003 ) fo

r mor e

. informatio n o

n modeling. ) A s o f

yet , however , we do no t

hav e apolic y o

r guidanc e documen

t o n thi s topic . W e are , however , workin g wit h Regio n 1 0 EP

A on som e fraining and hop e t o provide mor e informatio n on thi s topi c in th e fiiture. In th e meantime w e wil l hav e t o wor k wit h yo u o n thi s matte

r o n acase-by-cas e basis . Wha t i f I hav e a heatin g oi l tan k o n m y site ? A s o f Marc h 200 0 heatin g oi l tank s are covere d b y adifferen

t set o f rales (OA R340-177-000 1 throug h 340

- 177-0095 ) tha

n thos e use dfo

r regulate d US T cleanups . License d heatin g oil tan k servic e provider s no w certif y cleanup s and decommissioning s o f heatin g oi l tanks . Th e DE Q only audit s th e progra mto ensur e tha t th e wor k meet s appropriate standards . I f yo u hav e aquestio n about heatin g oil tanks , yo

u shoul d leav e a messag e along wit

h your nam e an d phon e numbe

r o n th e Department' s US T Helplin e (1-800-742-7878 , tol l free i n Oregon ) an

d your cal l wil l b e retumed . Wha t i f my sit e contain s bot h heatin g oi l an d gasolin e o rothe rUST s an d th e contaminatio n i s intermingled ? Wil l I have t o repor

t tw o separat e release s an d hire tw o differen t contractors ? Th e Departmen

t prefer s t o freat

suc h amixe d situatio n a s asingl e site . Therefore , you will onl y nee d to repor

t th e releas e onc e an

d wil l only b e issue d asingl e projec t lo g numbe

r (se e Sectio n 1.1 : How t o Repor t a n Undergroun dStorag e Tan

k PefroleumRelease) . Ho w th e cleanup wil l b e handle d wil l usually depend on th e condition s a

t you r site . I f gasolin e or

other non-heatin g oil contaminatio n i s th e dominan t problem , th e entir

e site will probably b e handle dunde r th e US T Cleanu

p Rules—th e rales discusse d in thi s guidanc e document . I f th e heatin g oi l tan

k releas e i s th e dominant

problem , the n th e site wil l probably b e handle d under th e heatin g oi l tan

k rales. You shoul d discus s th e preferre d approac h wit h th e Department .

US T Cleanu p Manua l 9 5 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m 

### SECTIO N4 : FORM S USE D FO R US T CLEANU P PROJECT S Thi s sectio n contain s severa l form s tha

t you ma y wis h to cop y and us e a s neede d o n you r US T cleanup projects . NOTE : The mos t

current version s o f

US T an d US T cleanu

p forms , includin g interactiv e form s tha t ca n b e filled out righ t on th e screen an

d the n printed , ca

n b e foun d on DEO' s Websit

e at : http://w\\'w.deq.state.or.us/pubs./forms.htm . DE Q recommend s you either us e th e interactiv e form

s o r downloa d th e mos t curren t version s to use . 1 . Th e three-pag e Petroleu mReleas e For mi s provide d fo

r your us e o n page s 9 7 throug h 99 . Yo

u shoul d fee

l free t o photocop y thes e tw o pages , fill out th e form , and fa

x i t t o th e appropriat

e regiona l offic e a s describe d i

n Sectio n 1.1 : Ho w to Repor

t a n Undergroun d Storag e Tan k Pefroleu mRelease . Pleas e refe

r t o that.sectio n fo

r mor e information . 2 . A n exampl e o f

afypical Cos t

Recover y Agreemen

t i s include d fo

r you r referenc e o

n page s 10

0 and 101 . Th e region s usually sen

d out copie s o f suc h a n agreemen

t i n thei r origina l packet of information tha

t get s maile d t o all responsibl e partie s reportin g arelease . T o rea d mor e about our cos t recover y progra mpleas e se e Sectio n 1.7 : Cos t Recover y fo r Departmenta

l Oversight

Work . 3 . Fo r non-heatin g oi l tanks , yo u mus t submit aUS T Decommissionin g Checklis t an d Sit e Assessmen

t Repor t for m to th e appropriat

e regiona l office . Fo

r your convenienc e acopy o f

thi s for mi s include d on pages , 10

2 throug h 109 . 4 . The soi l matrix checklis t (pag e 110) an

d scor e sheet (pag e 111 ) ar

e provide d t o hel

p you determin e i f

th e requirement s ofth e soi l mafri x rales hav e been met . Althoug h thi s checklis t i s agoo d summar

y ofth e matrix , rale requirements , you shoul dalway s refe r t o th e rales themselve s fo

r th e complet

e requirement s ofeae h step . T o hel p you findth e specifi c rale tha

t applie s t o aparticula

r itemon thi s list , th e rale numbe r i s given in parentheses . Fo

r example , i f aparticula

r itemon thi s lis t

i s require d by OA

R340-122-0320 , the n tha

t itemwill include th e referenc e numbe r (0320) . Pleas e mak

e sur e tha t yo u ca n chec k of f AL L ofth e item s on thi s lis t

BEFOR E submittin g you

r final repor t to DEQ . I f a n ite mo n th e lis t doe s no t apply t o your

site , mar k "N/A " o n th e line . For

example , i f

yo u ar e no t requestin g permissio n to leav e asmall inaccessibl e pocket of soil contaminatio n tha

t exceed s th e cleanu

p standards , the n item5 would b e marked "N/A" . Omittin g item s tha t appl y to your

site will caus e delay s an

d ma y result in your havin g t o retu mto th e site t o do more wor k to complet

e th e report . Yo u ar e require dby OA

R340-122-036 0 t o include acomplete d copy ofth e matri x checklis t an d th e matrix scor

e shee t a s par t of you r soi l matri x report . Th e soil matrix repor t mus t b e submitte d t o DE Q within 60 day s o f completin g acleanup .

UST Cleanu p Manua l 9 6 Ma y 200 9Orego n Departmen t o f Envirbnmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 4.1 : PETROLEU M RELEAS E FOR M

Pag e 1 of 3

Dcoortniwi t

of Envirorvnenta i Quality 

## US T PETROLEU M RELEAS E FOR M -INCIDEN T INFORMATION

- (Thi s Sectio n fo r DE Q Us e Only ) LO G NUMBER ; - - RECEIVE D BY : DAT E REPORTED : (today' s date ) _ DAT E DISCOVEREE> : SIT E NAME : SIT E ADDRESS : SITE CITY : n REGULATE D US T & FAC NBR: . ZIP : D NON-REGULATE D US T SIT E COUNTY : PHONE : -MAI L CONTACTS

REPORTE D B Y (required , perso n reportin g tlii s releas e t o DEQ ) RESPONSIBL E PART Y (required , perso n responsibl e fo r remedia l action ) NAME : ^ NAME : ._ _ COMPANY: . ADDRESS : _ CITY : COMPANY: . ADDRESS : ZIP ; CITY : ZIP : STATE: . EMAIL ; PHONE ; STATE : EMAIL ; PHONE ; INVOIC E CONTAC T (required , ma y b e sam e a s responsibl e party ) OTHE RCONTACT(S ) (Optiona l Information ) NAME ; NAME ; COMPANY; . ADDRESS ; _ CITY ; STATE ; ZIP ; PHONE : COMPANY; . ADDRESS ; _ CITY ; STATE ; ZIP : PHONE ; CONTINU

E O N NEXT PAG

E

US T Cleanu p Manua l 9 7 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m PETROLEU M RELEAS E FOR M

Pag e 2 of 3

-SIT E ASSESSMEN T (Fo r Caus e an d Sourc e Description s - See Nex t Page ) DISCOVERY : (cliecl i one ) CAUSE : (chec k one ) ' SOURCE : (chec k one ) CONFIRIVIATION : (chec k one ) D DECOMMISSIONING D OVERFIL L D TANK D CONTRACTO R D ROUTINEMONITORIN G D SPIL L D PIPING , D RP REPOR T D COMPLAIN

T n CORROSION D DISPENSE RD STAF F DE Q D LEA K DETECTION D INSTAL L PROBLE

M D TURBIN E PUM P D LAB DE Q D SIT E ASSESSMEN

T D PHYSICAL/MECHANICA L DAMAG

E D DELIVER Y PROBLE

M D LABR P D TIGHTNES S TES T D OTHE RD OTHE RD LA B OTHE R D OTHE RD UNKNOW N D OTHE R -CONTAMINANT S (Selec t on e o r more)

- n HEATIN

G OI L D UNLEADE D GASOLIN

E D LEADE D GASOLIN

E D MISCELLANEOU S GASOLIN E D DIESE

L MOTO RFUE L D WAST

E OIL D LUBRICAN T D SOLVEN T n OTHE RPET . DIST . D CHEMICA L D MTB E D UNKNOW N -IMPACTE D MEDI A (Selec t on e o r more)

- D DRINKIN

G WATE RD GROUNDWATE RD SURFACE WATE RD SOI

L D VAPOR S D FRE E PRODUCT -SITE-MANAGEMEN T (Thi s Sectio n Departmen t Us e Only)

- RELEAS E STOPPED ; FINA L REQUES T INVOIC E DATE : CLEANU P STARTED : NO FURTHE RACTION ; NOTESyCOMMENTS ;

US T Cleanu p Manua l 9 8 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m Petroleu mReleas e For

m Pag e 3 of 3 CAUS E O F RELEAS E DESCRIPTION S Overfil l - Us e thi s caus e whe n a n overfil l occurs . For

example , overfill s ma

y occu r fro mth e fil l pip e a t th e tank o r when th e nozzl e fail s t o shu

t of f a t th e dispenser . Spil l - Us e thi s caus e whe

n aspil l occurs . Fo r

example , spill s ma

y occu r whe n th e deliver

y hos e i s disconnecte d fro

mth e fill pip e ofth e tank

o r whe n th e nozzl e i s remove d fro mth e vehicl e a

t th e dispenser . Corrosio n - Us e thi s caus e when ameta l tank , pipin g or

othe r componen

t ha s areleas e due to corrosio n (fo r steel , corrosiontake s th e for

mo f mst) . Thi s i s aspecifi c typ e o f physica l o r mechanica

l damage . InstaUatio n Proble m- Us e thi s caus e when th e proble mi s determine d t o hav e occurre d specificall y becaus e th e undergroun d storag e tan

k systemwa s no t

installe d properly . Note tha t thes e problem s ma

y b e difficul

t t o determine . Physica l o r

Mechanica l Damag e - Us e thi s caus e fo r all type s o f

physica l or mechanica

l damag e except

corrosio n a s describe dabove . Som

e example s o f

physical o

r mechanica

l damag e includ e apuncture ofth e tan k o r piping , loos e fittings , broke n component s an d component s tha

t hav e change d dimensio n (fo r example , elongatio n o

r swelling) . Othe r - Us e thi s optio n whe

n th e caus e i s know n bu t

doe s no t fit into on e ofth e abov e categories . Fo r example , release s fi-omvent

lines , vapor

recover y line s and fill line s woul d b e include d i n thi s category . Unknow n - Us e thi s optio n only whe n th e caus e i s no t knovm . SOURC E O F RELEAS E DESCRIPTION S Tan k - Thi s ter mmean s th e tan

k that store s th e produc t

an d i s par t ofth e undergroun d storag e tan k system . Pipin g - Thi s ter

mmean s th e pipin g an d connector s mnnin g fro mth e tank

or submersibl e turbin e pum

p to th e dispense

r or other end-us e equipment . I

t doe s no t includ e vent , vapo r

recover y or fill lines . Dispense r - Thi s ter minclude s th e dispenser

and equipmeri

t use d t o connec t

th e dispense

r to th e piping . For

example , a releas e fro masuctio n pum

p o r component s abov e th e shea r valv e woul d b e considere d areleas e fi-omth e dispenser . Turbin e Pum p (STP ) - Thi s ter minclude s th e submersibl e turbin e pum p head (typicall y locate d i

n th e tan k sump) , th e lin e lea k detector , an

d th e pipin g that

connect s th e submersibl e turbin e pum p t o th e tank . Delivery Proble m- Thi s ter midentifie s release s tha

t occu r durin g produc t

deliver y to th e tank . Typica

l cause s associate d wit

h thi s sourc e ar

e spill s an d overfills . Othe r - Us e thi s optio n whe

n th e releas e sourc e doe s no t fit into on e ofth e abov e categories . Fo r example , release s fro

m vent lines , vapo r

recover y line s an d fill line s woul d b e include d in thi s category .

US T Cleanu p Manua l 9 9 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m • SECTIO N 4.2 : COS T RECOVER Y AGREEMEN T 

### OREGO N DEPARTMENT O F ENVIRONMENTA L QUALIT Y UNDERGROUN D STORAG E TAN KPROGRA M 

# DE Q stateoiorago n Cos t RecovGr y Agreemen t Departmen t o f Environmenta l Qualit y 

### Thi s documen

t serve s a s a

n agreement

between th e undersigne; d (hereinafte r "you" ) an d th e Department

of Environmenta

l Qualit y (DEQ ) regardin g DE Q revie w and oversight ofth e investigatio n and/or cleanup o f petroleum(hazardou s substances ) a t th e propert

y locate d at : Facilit y Name : Address : USTCNo. : DE Q agree s to revie w environmenta l document s submitte d by yo u o r o n your behal f regardin g th e investigatio n and/or

cleanu p o f th e above-reference d site . Additiona l detail s regardin g DE Q oversigh t wil l b e establishe d upon review ofth e initia l sit e data . DE Q require s tha

t person s requestin g DE Q revie w an d oversight

o f investigatio n an

d cleanu p activitie s agre e to th e term s o f

thi s cos t recover y agreemen

t an d pa y projec t oversigh t costs . DE Q projec t

oversigh t cost s wil l includ e direc t

cost s an d indirec t costs . Direc t

cost s include site-specifi c expense s an

d lega l costs . Indirec t

cost s ar e thos e genera

l managemen

t an d suppor t cost s o f th e DEQ , includin g th e Lan

d Qualit y Divisio n (LQ) , allocabl e to DE Q oversigh t o f thi s agreemen

t an d no t charged a s direct , site-specifi c costs . Indirec t charge s ar

e base d o n apercentag e o f

direc t persona l service s costs . Review an d oversigh t cost s shal l no t

include an

y unreasonabl e cost s o

r cost s no t otherwis e recoverabl e b y DE Q unde r ORS 465.255 . DE Q cost s ar

e due withi n thirt

y (30 ) day s o f

issuanc e ofth e monthly statement , b y acheck mad e payabl e t o th e "Departmen

t ofEnvironmenta

l Quality" . Nin e percent

interes t shall b e charge d o

n pas t du e accounts . Electin g no t

t o ente r int o thi s agreement

doe s no t releas e you froman

y responsibilit

y tha t yo u migh t hav e fo r an y reportin g requirements , investigatio n and/or cleanu p o f petroleum(hazardou s substances ) a t th e abov e referenced facility . Thi s doe s no t preclude th e DE Q fromconductin g audit s o r inspection s ofall or portion s ofth e investigatio n and cleanup activitie s associate d wit h thi s facility . Enforcemen

t actio n ma y b e initiate d if an y violatio n of

Orego n Administrativ e Rule s (OARs ) o r Orego n Revise d Statute s (ORSs ) i s found . US T Cleanu p Manua l , 10 0 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m ^ ^ Cos t Recovery Agreemen t i PageTw o 

### Either DE Q or you ma y terminate thi s agreement b y givin g 1 5 day s advanc e writte n notic e to the . other . Only thos e cost s incurre d or obligate d by DE Q prio r

to th e effective dat

e o f an y terminatio n o f

th e agreemen t shall b e recoverabl e unde

r thi s agreement . Terminatio n o f thi s agreemen

t will not affec t an y othe r right DE Q ma y hav e fo r recover y o f cost s under

an y applicabl e law . Yo u wil l hol d DE Q harmles s fo r an y claim s (includin g but

no t limite d t o claim s o f

propert y damag e or persona l injury ) arisin g fromDE Q revie w and/o r oversight activitie s unde

r thi s agreement . Thi s agreement

i s no t and shall no t

b e construe d t o b e a

n admissio n b

y yo u ofan y liabilit

y unde r ORS 465.25 5 o r any other la w or a s awaiver

b y yo u ofan y defens e t o suc h liability . Thi s agreemen

t i s no t an d shal l no t b e construe d to b e awaiver , release , or settlement

o f claim s tha t DE Q ma y hav e agains t

yo u o r an y other responsibl e perso n no r

i s thi s agreement

awaiver ofan y enforcemen

t authorit y tha t DE Q ma y have . Th e DE Q Tank s Progra

mwil l b e responsibl e fo

r th e revie w an

d oversigh t ofth e investigatio n an

d cleanu p activitie s associate d wit

h th e property . Pleas e refe

r al l site-specifi c inquirie s t o th e US T Regiona l Office s i n Northwes t Regio n - Portland , Weste mRegio n - Sale man d Eugen e an

d Easte mRegio n - Th e Dalles . Fo r location s andphon e number s o f th e regional offices , pleas e se e th e US T Regiona l Office lis t

a t http://www.deq.state.or.us/about/locations.ht m All inquirie s regardin g cos t recover y and/o r invoice s shoul d b e directe d t o Dawn Ismeri o a t 503-229-5812 . If th e term s o f

thi s agreement

ar e acceptable , pleas e hav e i t execute d b y a

n authorize d office

r i n th e spac e provide d below . I

n orde r t o mor e effectively schedul e you

r project , pleas e retu mthi s agreemen t withi n 3 0 day s o f receip t t o th e regiona

l offic e responsibl e fo

r vou r site . Accepte d an dagree d t o thi s da y o f , 2 0 By : Title : Pleas e provid e th e followin g informatio n a s t o where th e invoice s shoul d b e sent .

Individua l Name : . Title : Compan y Name: _ Mai l Address: . City , State , Zip : Phon e Number :

UST Cleanu p Manua l 10 1 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 4.3 : US T DECOMMISSIONIN G CHECKLIS T AN D SIT E ASSESSMEN T REPOR T



### OREGO N DEPARTMEN T O F ENVIRONMENTA L QUALIT Y UNDERGROUN D STORAG E TAN KPROGRA M 

# DE Q stamojomg m UNDERGROUN D STORAG E TAN KDECOMMISSIONIN G Environmente i CHECKLIS T AN D SiT E ASSESSMEN T REPOR T Qualit y A . FACILIT Y INFORMATION : Thi s repor t MUS T b e submitte d b

y th e undergroun d storag e tan k permitte e o

r tan k owner , or th e license d DE Q Servic e Provide r on thei r behalf , withi n 3 0 day s followin g completio n ofth e tan k decommissionin g o r

change-in-servic e regardles s of

ongoin g cleanu p work . DE Q FACILIT

Y NUMBER

: FACILIT Y NAME : FACILIT Y ADDRESS : PERMITTE

E PHONE : DATE : B . WOR K

PERFORME D BY : The checklis t

an dsite assessmen

t repor t shoul d b e complete d an

d signe d by th e DE Q license d supervisor an d signe d b y a n executiv e office

r ofth e DE Q license d Servic e Provider o n pag e 6 . The tan

k owne r o r permitte e mus t

review an d sig n th e repor t on pag e 6 . NOTE : A

N OWNE RO RPERMITTE E MA Y PERFOR M US T SERVICE S ONLY I F THE Y HAVE TAKEN AN

D PASSED TH E APPROPRIAT E US T SUPERVISO REXAMINATIO N OFFERE D B Y A NATIONAL TESTIN G SERVIC E (SE E OA R340-150-015 6 fo r requirements) .

US T Cleanu p Manua l 102 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m DEO Servic e Provider' s Licens e # : Name : Telephone : Constructio n Contractor s Boar d Licens e # :

DEO Decommissionin e Supervisor' s Licens e # : Name : Telephone : DEO Soi l Matri x Servic e Provider' s Licens e # : Name : Telephone : DEO Soil Matri x Supervisor' s Licens e # : Name : Telephone : (If applicable )

(I f applicable )

C . DATES : Decommissioning/Change-in-Servic e Notic e - Dat e Submitted : (3 0 day s befor e wor k starts) . Wor k Star t Telephon e Notic e - Dat

e Submitted : ( 3 workin g day s befor e wor k starts) . . DE Q Perso n Notified : Date Wor k Started : Dat e Wor k Completed : Note : Provid e th e followin g information ifan y soi l o r water contaminatio n i s foun

d durin g th e decommissionin g o r change-in

- service . Contaminatio n mus t

b e reporte db

y th e US T permitte e withi n 2 4 hours . Th e license d servic e provide r mus t repor t contaminatio n withi n 7 2 hour s afte

r discover y unles s previously reported . Dat e Contaminatio n Reported : DE Q Perso n Notified : By :

D . OTHE RDE Q PERMIT S MA Y B E NEEDE D WHER E SOI L O RWATE RCLEANU P I S REQUIRED . DE Q Wate

r Discharg e Permit

# : Water Dispose dto (Location) : DE Q Soli dWaste Disposa l Permi t # : Soil Disposa

l o r Treatment

Location : Date : Date : 

## 1

US T Cleanu p Manua l 10 3 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m E . TAN K

INFORMATION :

TANK ID # DEQ-US T

PERMIT # TAN K SIZ E I N GALLON S PRODUCT : GASOLINE ,

DIESEL , USE

D OIL , OTHER ? PRESEN T NE

W CLOSUR E O RCHANGE-I N

TAN K REMOVA

L

-•,• 1 CLOSUR

E I N PLACE * -SERVICE ?

CHANG E I N SERVICE * TAN K

T O B E REPLACED ? YES NO

NOT E 1 : Wher

e decommissione d tank(s ) ar e replace db

y ne w underground storag e tank s th e US T permitte e mus t submit aGenera l Permi t Registratio n For

mto Instal l an dOperate UST s containin g information on th e new tank s 3 0 day s befor e installin g them . NOT E 2 : Submi

t asoil sampling pla

n to th e DE Q regiona

l offic e an d receiv e pla

n approva l prior t o startin g wor

k if 1 ) tan k i s to b e decommissione d in-place , 2 ) tan k content s ar

e change dto anon-regulate d substance , 3 ) tan k contain s aregulate d substanc e othe r tha n petroleum , o

r 4 ) tan k changedto non-regulate duse . F . DISPOSA L INFORMATION :

TANK ID # TAN K

AN D PIPIN G DISPOSA L METHO D SCRA P LAND

FIL L OTHE

R IDENTIF

Y LOCATIO

N & PROPERT

Y OWNE R DISPOSA L LOCATIO N O F TAN K CONTENT S LIQUID S SLUDGES

NOT E 1 : Th e tan

k contents , th e tan

k an dth e pipin g ma

y b e subject

t o th e requirement s o f

Hazardou s Wast

e regulations . If

yo u hav e questions , contac t

th e DE Q regiona

l office , fo r you r area . NOT E 2 : Attac h copie s ofth e disposa l receipt s fo

r th e tank s an

d piping . If

th e tank s ar

e shipped off-sit

e fo r reus e provide th e name , addres s an dphone numbe

r ofth e perso n o r

busines s receivin g th e tank s fo r reuse . NOT E 3 : Attach copie s ofth e disposa l receipt s fo

r th e disposa

l o r treatment o f liqui d o r sludg e removed fi'omth e tank s

US T Cleanu p Manua l 104 Ma y 200 9Orego n Departmen t of Environmenta l Quality - Undergroun d Storag e Tan k Progra m G . CONTAMINATIO N INFORMATION : TAN K ID # GROUN

D WATE R I N PIT ? PRODUC T

ODORI N SOIL ? PRODUC T

STAIN S I N SOIL ? NUMBE R O F _ SAMPLE S LABORATOR Y ( NAME , CITY , STATE . PHONE )

• NOT E 1 : Attac h acopy ofth e laborator y repor t showin g th e result s ofal l test s o n all soil an

d water samples . Th e laborator

y repor t mus t identif y sampl e collectio n methods , sampl e location , sampl e depth , sampl e typ e (soi l o r water) , typ e o f

sampl e container , sampl e temperatur

e durin g transportation , type s o f tests , an dcopie s o f

analytica l laborator y reports , includin g QA/QC infonnation . Include laborator y name , addres s an

d copie s o f

chain-of-custod

y forms . NOT E 2 : I f

contaminatio n i s detecte dan d aLevel 2 o

r Level 3 soi l matri x cleanu p standar d i s applie d to th e site , attach acop y ofth e soil matri x analysi s includin g method s o f determinin g soi l type , dept h t o groundwater , an

d sensitivit

y of uppermos t

aquifer . H . SIT E SKETCH : (Sho w locatio n ofadjacen t roads , propert y lines , structures , dispensers , & al l USTs . Sho w North , genera l directio n of

groun dslop e an d soi l sampl e locations . Sketc h doe s no t nee d t o b e draw n t o scale . You ma y attac h aseparat e drawing. )

US T Cleanu p Manua l 10 5 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m I . SAFET Y EQUIPMEN T ON JO B SITE : Fir e Extinguisher : Combustibl e Ga s Detector : Oxyge n Analyzer : Type/Size :

Model : Model : Recharg e Date : Calibratio n Date : Calibratio n Date : J . DECOMMISSIONING : All Tanks : N/

A = No t Applicabl e (Chec k

(V ) Appropriat e Box ) 1 . Al l electrica l equipmen

t grounde dan

dexplosio n proof

?

/ • , 2 . Safet y equipmen

t o n jo b site ? 3 . Overhea

delectrica l line s located ? 4 . Subsurfac e electrica

l line s of f o r disconnected ? 5 . Natura l ga s line s of

f o r disconnected ? 6 . N o ope n fires o r smoking materia

l i n area ? 7 . Vehicl e an

d pedestria

n traffic controlled ? 8 . Excavatio n materia

l are acleared ? 9 . Rainwate

r runof f directe dto treatmen

t area ? 10 . Draine dan d collecte dproduc t fi-omlines ? 11 . Remove dproduc t

an dresidua l fro mtank ? 12 . Cleane dtank ? 13 . Excavate d to to p o f

tank ? 14 . Remove d tan

k fixtures? (pumps , lea

k detectio n equipment) 15 . Remove dproduct , fill an dven t lines ? YE S N O



### r UNKNOW N

».. , N/

A

K . TAN K

ABANDONMEN T IN-PLACE : Al l Tanks : N/

A = No t Applicabl e (Chec k

(V ) Appropriat e Box ) 16 . Samplin g pla

n approvedb

y DEQ ? Date : DEQ Staff: . 17 . Contaminatio n concem s fiilly resolved ? 18 . Fil l Material ? Type : YE S N O UNKNOW N N/

A

US T Cleanu p Manua l 10 6 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m L . TAN K

REMOVAL : Al l Tanks : N/

A = No t Applicabl e (Chec k

(V ) Appropriat e Box ) 19 . Tan k placement

are acleared , chock s placed ? 20 . Purge do r

ventilate d tan

k t o prevent

explosion ? Metho dused : Mete r reading : 1 21 . Wer e chain s o r stee l cable s wrappe d aroun dtan k fo r removal ? 22 . Tan k removed , se

t on ground , blocke dt o prevent movement ? 23 . Tan k se t o n truck an dsecure d wit

h straps(s) ? 24 . Tan k labele dbefor

e leavin g site ? YE S N O

' UNKNOW N N/

A

M . SIT E ASSESSMENT : Al l Tanks : N/

A = No t Applicabl e (Chec k

(V ) Appropriat e Box ) 25 . Sit e assesse dfo

r contamination ? Se e OA

R340-122-034 0 26 . Soi l sample s taken andanalyzed ? 27 . Wa s contaminatio n found ? Date/Time : 28 . Wa s hazardou s waste determinatio n made fo r tan k content s (Liquids/sludges) ? YE S N O UNKNOW N N/

A

UST Cleanu p Manua l 10 7 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m

N . REQUIRE D SIGNATURES : I hav e personall y reviewe dthi s decommissionin g checklis t an d sit e assessmen t

repor t an d th e attachment s an d fin d the mt o b e tru e an dcomplete . Permitte e o r

Tan k Owner : (Pleas e Print ) Permitte e o r

Tan k Ovmer : " Date :

(Signature ) I hav e personall y reviewe dthi s decommissionin g checklis t an d sit e assessmen t

repor t an d th e attachment s an d find the mt o b e tru e an dcomplete . License dSupervisor : • ' (Pleas e Print ) License d Supervisor : . Date : (Signature ) I hav e personall y reviewe dthi s decommissionin g checklis t an d sit e assessmen t

repor t an d th e attachment s an d find the mt o b e tru e an dcomplete . Executiv e Officer : License dServic e Provide r (Pleas e Print ) Executiv e Officer : Date : License d Servic e Provide r (Signature ) O . REPOR T FILING : Thi s repor t

signe db y th e permitte e o r tan k owner , license d superviso r an d executiv e office r

ofth e Servic e Provider , complet e wit h al l applicabl e attachments , mus t b e filed wit h th e DE Q regiona l offic e withi n 3 0 day s afte r th e excavatio n i s backfille d o r

change-in-servic e i s complete . D o no t wai t unti l an y sit e relate d cleanu p projec t i s completed . Contac t th e DE Q regiona l offic e prio r t o filing thi s repor t

wher e specia l circumstance s exis t at th e sit e (suc h a s wate r

i n pit , remainin g pocket s o f

contamination , etc.) . P . HEL P WIT H THI S REPORT : If yo u hav e an y question s abou t thi s decommissionin g checklis t an d sit e assessmen t

report , pleas e phon e you r DE Q Regiona l Office . Yo u ca n als o phon e th e US T Program' s toll-fre e number , 1-800-742-7878 . Thi s i s amessag e answerin g machin e for

call s mad e withi n Oregon . Undergroun dStorag e Tan k Progra mstaf

f will retu myou r

call s withi n 2 4 hours . Yo u ca n als o sen dan e-mai l t o tanks.info@deq.state.or.us . Ou r regiona l staf

f ar e als o availabl e t o answe r question s regardin g tan k

decommissionin g o r

change-in-servic e requirement s (se e belo w fo r telephon e numbers) .

US T Cleanu p Manua l 108 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m Q . COPIE S O F TH E GENERA L PERMI T T O DECOMMISSIO N O RCOMPLET E A CHANGE-IN-SERVICE : Obtai n copie s ofth e genera l permi t to decommissio n o

r complete achange-in-servic e condition s an d requirements , US T Progra mrule s and law s and US T Cleanu p rule s an d law s at : 1 . An y ofth e DE Q office s liste d below , 2 . B y callin g th e US T HELPLIN E a t 1 -800-742-7878 , 3 . Sen da n e-mail to tanks.info(5).deq.state.or.u s o r 4 . Downloadin g fro

mth e US T hom

e pag e at : http;//w"Ww.deQ.state.or.us/lq/tanks/ust/index.htm

NORTHWES T REGION ; Clackamas , Clatsop , Columbia , Multnomah , Tillamoo k & Washingto n Countie s

WESTER N REGION : Benton , Coos , Cuny , Douglas , Jackson , Josephine , Polk , Lane , Lincoln , Linn , Mario n & Yamhil l Countie s EASTER N REGION : Baker , Crook , Deschutes , Gilliam , Grant , Harney , Hoo d River , Jelferson , Klamath , Lake , Malheur , Mon'ow , Shemian , Umatilla , Union , Wasco , Wheele r & Wallow a Countie s

EASTER N REGION /

TH E DALLE S 40 0 E . Sceni c Drive , Buildin g 2 - 30 7 Th e Dalles ; O

R9705 8 Phone : 541-298-725 5 Fax : 541-298-733 0 NORTHWES T REGION 202 0 S W 4t h Avenue , Suit

e 40 0 Portland , O R97201-588 4 Phone : 503-229-526 3 Fax : 503-229-694 5 WESTER N REGIO N /

COO S BA

Y 38 1 N SECON

D STREET COO S BA

Y 9742 0 Phone : 541-269-272 1 Fax : 541-269-798 4 WESTER N REGIO N /

EUGEN E 16 5 Eas t 7 * Avenue , Suite 10

0 Eugene , O R9740 1 Phone : 541-686-783 8 Fax:541-686-755 1 WESTER N REGION /

SALE M 75 0 Fron t Street NE , Suit e 12 0 Salem , O R97301-103 9 Phone : 503-378-824 0 Fax : 503-373-7944

US T Cleanu p Manua l 10 9 Ma y 200 9^

Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m . _ SECTIO N 4.4 : SOI L MATRI X CHECKLIS T AN D SCOR E SHEE T SOI L MATRI X CHECKLIS T 1 . The releas e of

petroleu mha s bee n reporte d to th e DEQ (0220) . 2 . The matri

x scor e shee t ha s bee n completed fo

r thi s site , unles s th e sit

e i s cleane d u

p t o the most stringen t cleanu p leve l (0320) . • 3 . The required hydrocarbon identification tes t (NWTPH-HCID ) has bee

n performed (0335(3)) , and , i f detectable level s wer e found , the appropriat

e analytica

l method o

r method s have bee

n use d to measur

e the level s of contamination (0218) . 4 . A sketc

h ha s bee n mad e of thi s sit e (0345(1) ) whic

h clearl y shows : a . The location ofal l building s an d othe r ke y features , bot

h man-mad

e an d natural ;

_ _b . Th

e name s ofadjacen

t street s an d properties ; c . Th e location ofal l excavation s includui g thos e tha t wer e fo r the remova

l of tanks an d associate d pipin g as wel l a s thos e tha

t wer e strictl y fo r th e remova

l of contaminate

d soils ; d . Thelocationofallproductstoragetanks , line s an d dispensers , including thos e tha t wer e decommissione

d a s wel l as thos e tha

t remai n o n th e site ; an

d e . All soi l an dwate r sample locations . 5 . Ifan y contaminatedsoil exceedin g matrix limits ha s bee

n lef t o n site , the reaso n fo

r leaving thi s soi

l ha s bee n explainedan

d the requirements o f

0340(I)(f ) an d 0355(4 ) have bee

n met . 6 . If wate r wa s presen

t i n th e tan k pit , th e Departmen

t was notified , the wate

r wa s pumpe

d fro mthe pit , ah

d the requirement s o

f 0340(4 ) have bee

n met . 7 . Al l soil and/o r wate r sample s have bee

n collected , coded , stored an d shippe d a s specifie

d i n th e rules , an

d prope r chain-of-custod

y form s hav e bee n filled out

(0345) . 8 . If areleas e fi-omawast

e oil tan k was discovered , a

t leas t on e sampl e has bee n analyzed b

y th e methods specifie

d in0218(I)(b)(D) . 9 . I f atan k was decommissione

d i n place , th e Departmen

t gave prio r approva l fo r asite-specific samplin

g pla n (0340(5)) . 10 . A repor

t has bee n preparedwhic

h include s adetailed description o f everything tha

t wa s observe dan

d performe da t th e site , contain s all ofth e informatio n required by th e mle s (0360) , an d present s findings an

d recommendation s whic

h ar e consisten t wit h Departmen

t regulations .

UST Cleanu p Manua l 11 0 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SOI L MATRI X SCOR E SHEE T I . Dept h to Groundwate

r < 2 5 fee t (10 ) 25-5 0 fee

t ' ( 7 ) 51-10 0 fee

t (4 ) > 10 0 fee t (1 ) 2 . Mea n Annua l Precipitatio n > 4 5 inches , (10 ) 20-4 5 inche s (4 ) < 20 inche s (I ) 3 . Nativ e Soil Typ e Cours e sands , gravel s (10 ) Silts , fm e sand s ( 5 ) Clay s (1 ) 4 . Sensitivit

y o f Uppermos t

Aquife r Sol e Sourc e (10 ) Curren t Potabl e ( 7 ) Futur e Potabl e (4 ) Non-potabl e (1 ) 5 . Potentia

l Receptor s Many , nea r ~ (10 ) Mediu m(5 ) Few , fa r (1 ) TOTA L SCOR E MATRI X SCOR E Level 1 : > 4 0 pts . Leve l 2 : 25-4 0 pts . Level 3 : < 2 5 pts . Cleanu p Leve l (pp

mTPH ) Gasoline 4 0 80 13 0 Diese

l 10 0 50 0 100 0

US T Cleanu p Manua l 11 1 Ma y 200 9Orego n Departmen t o f Environmenta l Qualit y - Undergroun d Storag e Tan k Progra m SECTIO N 5 : REFERENCE S AN D ADDITIONA L GUIDANC E

SECTIO N 5.1 : REFERENCE S Th e followin g document s ar e reference di n thi s guidanc e manual . Copie s ofth e DE Q document s ca n b e obtaine d b y callin g th e Department' s Lan dQualit y Divisio n i n Portlan da t 503-229-6652 , o r

I -800-742-787 8 (tol l fi-ee i n Oregon) . Yo u ca n als o findthes e document s o n th e intemet . Th e addres s fo r eac h i s include d i n th e large r lis t o f guidanc e document s give n i n Sectio n 5.2 : Additiona l Guidanc e Documents . Constructio n an d Maintenanc e o f Monitorin g Well s an d Othe r Hole s i n Orego n (Orego n Wate r Resource s Department , 1995) . Groundwate r

Monitorin g Wel l Drilling , Construction , an d Decommissionin g (DEQ , 1992) . Guidanc e fo r

Applyin g th e Low-Impac t Sit e Rul e t o US T Cleanu p Site s (DEQ , Januar y 2008) . Guidanc e fo r

Ecologica l Ris k

Assessmen t

- Leve l I : Scopin g (DEQ , 1998) . Guidanc e fo r

Us e o f Institutiona l Control s (DEQ , 1998) . Heatin g Oi l Tan k

Generi c Remed y Guidanc e Documen t (DEQ , Augus t

2007) . Northwes t

Tota l Petroleu mHydrocarbo n Method s (DEQ , 1996) . Risk-Base d Decisio n Makingfo r th e Remediatio n o f

Petroleum-Contaminate d Site s (DEQ , Septembe r 22,2003) . Treatmen t

o f Petroleum-Contaminate d Soil s (DEQ , Jun e 2007) .

US T Cleanu p Manua l 11 2 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m SECTIO N 5.2 : ADDITIONA L GUIDANC E DOCUMENT S Th e following i s alis t

o f DEQ , EPA , and othe

r cleanu p an d risk-related guidanc e documents , permits , an d forms , an

d th e internet

(we b site ) addresses * wher e they ca n b e found . Yo

u ca n get printe d copie s ofth e DE Q document s by callin g th e Land Qualit y Division , 503-229-6652 , o r b y leavin g a messag e o n th e US T Helpline , 1-800-742-787 8 (tol l fre e i n Oregon) . NAM E O F DqcuMEN

T . . WE B SIT E ADDRES S

- TH E FOLLOWIN G AR E DE Q US T PROGRA M GUIDANC E DOCUMENT S - Risk-Base d Decisio n Makin g fo rth e Remediatio n o f Petroleum-Contaminate d Site s Risk-Base d Decisio n Makin g fo rth e Remediatio n o f Petroleum-Contaminate d Site s Spreadshee t Guidanc e fo rApplyin g th e Low-Impac t Sit e Rul e t o UST Cleanu p Site s Northwes t Tota l Petroleu m Hydrocarbo n Method s Treatmen t o f Petroleum-Contaminate d Soil s Heatin g Oi l Tan k

Generi c Remed y Guidanc e Documen t Heatin g Oi l Tan k

Generi c Remed y Worksheet s Heatin g Oi l Tan k

Generi c Remed y Repor t For m Heatin g Oi l Tan k

Generi c Remed y Instruction s Heatin g Oi l Tan k

Generi c Ris k

Assessmen t http://www.deq.state.or.us/lq/Dubs/docs/RBDMGuidance.Dd f httD://www,deq.state,or.us/lq/pubs/docs/RBDMSpreadsheetNotes.pd f httD://www.deq.state.or.us/lq/Dubs/docs/tanks/LowlmDactSiteRuleGuidance.pd f

httD://wvw.deq.state.or.us/lq/tanks/lust/nwDetroleum.ht m httD://www.deq.state.or.us/lq/Dubs/factsheets/tanks/PCSTreatmentODtlons.Dd f http://www.deq.state.or.us/lq/pubs/docs/tanks/hot/HOTGenericRemedvGuidan c e.pd f http://www.deq.state.or.us/lo/Dubs/forms/tanks/hot/HOTGenericRemedvWork s heet.Dd f httD://www.deq.state.or.us/lq/Dubs/forms/tanks/hot/HOTGenericRemedvReDort . Edf http://viww,deq.state.or.us/lo/Dubs/forms/tanks/hot/HOTGenericRemedvReDort l nstructions.pd f httD://www.deq.state.or.us/lq/DUbs/docs/tanks/hot/HOTRiskBasedStandards.D d 

### f -TH E FOLLOWIN

G AR E DE Q UST PROGRA M RULES - | Cleanu p Rule s fo rLeakin g Petroleu m UST System s j OA R 340-122-020 5 throug h 340-122-036 0 httD;//www.deq.state.or.us/requlations/rules.ht m

US T Cleanu p Manua l 11 3 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m NAMEOF,DOCUMEN T - - . ^ \ , Undergroun d Storag e Tan k Complianc e Rule s OA R 340-150-000 1 throug h 340-150-016 6 Undergroun d Storag e Tan k Servic e Provider s OA R 340-160-000 5 throug h 340-160-015 0 US T Soi l Matri x Cleanu p Servic e Provider s an d Supervisor s OA R 340-162-000 5 throug h 340-162-015 0 Licensin g Requirement s fo rServic e Provider s an d Supervisor s Providin g Heatin g Oi l Tan k Service s OA R 340-163-000 5 throug h 340-163-015 0 Heatin g Oi l Undergroun d Storag e Tank s OA R 340-177-000 1 throug h 340-177-009 5 -»,, , • ' V , , , . WE B SIT E AbDRES s , httD://www.deq.state.or.us/requlations/rules.ht m httD://www.deq.state.or.us/requlations/rules.ht m http://www.deq.state.or.us/requlations/rules.ht m httD://www.deq.state.or.us/requlations/rules.ht m httD://www.deq.state.or.us/requlations/rules.ht m

~ TH E FOLLOWIN G AR E DE Q US T PROGRA M COMPLIANC E PERMIT S AN D FORM S - T o Instal l an d Operat e Regulate d Tank s , an d EP A Notificatio n fo rUndergroun d Storag e Tank s T o Decommissio n Existin g Unregistere d Tank s , an d EP A Notlflcatlon.fo rUndergroun d Storag e Tank s T o Modif y Tan k

Owner , Permitte e o rPropert y Owne rInfomiatio n US T Decommisslonlng/Change-ln-Servic e 30-Da y Notic e US T Decommissionin g Checklis t an d Sit e Assessmen t Repor t US T Installatio n Checklis t US T Syste m Modificatio n 30-Da y Notic e US T Systen n Modificatio n Checklis t http://www,deq.state.or.us/Dubs/forms.ht m httD://www.deo.state,or.us/Dubs/forms.ht m httD://www.deq.state.or.us/Dubs/forms.ht m httD://www.deq.state.or.us/pubs/forms.ht m httD://www.deq.state.oi'.us/Dubs/forms.ht m http://viww.deq.state.or.us/pubs/forms.ht m

" " http://www.deq.state.or.us/Dubs/forms.ht m

http://www.deq.state.or.us/pubs/forms.ht m

~ TH E FOLLOWIN G AR E DE Q ENVIRONMENTA L CLEANU P DIVISIO N GUIDANC E DOCUMENT S THA T MA Y B E USEFU L FO R SOM E US T APPLICATION S ~ Contaminate d Aquife rPolic y Groundwate rMonitorin g Wel l Drillirig , Construction , an d Decommissionin g httD;//www.deq.state.or.us/pubs/reports.ht m http://www.deq.state.or.us/Dubs/reDorts.ht m

UST Cleanu p Manua l 11 4 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

NAM E O F DOCUMEN T Guidanc e fo rConduc

t o f Deterministi c Huma n Healt h Ris k Assessment s Guidanc e fo rConsideratio n o f Lan d Us e Guidanc e fo rConductin g Beneficia l Wate rUs e Determination s a t Environmenta l Cleanu p Site s : Guidanc e fo rEcologica l Ris k Assessmen t - Leve l 1 : Scopin g Guidanc e fo rUs e o f Institutiona l Control s WE B SIT E ADDRES S http://wvvw,deq.state.or.us/Dubs/reDOrts.ht m httD;//viww.deq.state.or.us/pubs/reports.ht m httD://www.deq.state.or.us/pubs/reDorts.ht m httD://www.deq.state.or.us/Dubs/reDorts.ht m httD://vwvw.deq.state.or.us/Dubs/reDorts.ht m

- TH E FOLLOWIN G AR E DE Q ENVIRONMENTA L CLEANU P DIVISIO N GUIDANC E DOCUMENT S THA T MA Y B E USEFU L FO R SOM E NON-US T APPLICATION S ~ Generi c Remedie s fo rSoil s Contaminate d wit h PCB s Guidanc e fo rEcologica l Ris k Assessmen t - Leve l II : Screenin g Guidanc e fo rEcologica l Ris k Assessmen t - Leve l I I Screenin g Benchmar k

Value s Guidanc e fo rEcologica l Ris k Assessmen t - Leve l III : Baselin e Guidanc e fo rEcologica l Ris k Assessmen t - Leve l IV : Fiel d Baselin e Toxicity Equivalenc

y Factor s (TEF ) Polic

y Statemen t httD://www.deq.state.or.us/Dubs/reDorts.ht m httD://www.deq.state.or.us/Dubs/reDorts.ht m httD://www.deq.state.or.us/Dubs/reDorts.ht m http://www.deq.state.or.us/Dubs/reDorts.ht m httD://www.deq.state.or.us/Dubs/reDOrts.ht m httD://www.deq.state.or.us/Dubs/reports.ht m

~ TH E FOLLOWIN G AR E OREGO N WATE R RESOURC E DEPARTMEN T RULE S O N MONITORIN G WELL S ~ Constructio n an d Maintenanc e o f Monitorin g Well s an d Othe r Hole s i n Orego n httD://arcweb.sos.state.or.us/rules/OAR S 600/OA R 690/69 0 240.htm l

- TH E FOLLOWIN G AR E EP A GUIDANC E DOCUMENT S AN D REFERENCE S ~ Catalo g o f EP

A Material s o n Undergroun d Storag e Tank s Expedite d Sit e Assessmen t Tool s Fo rUndergroun d Storag e Tan k Site s How t o Effectivel y Recove rFre e Produc t A t Leakin g Undergroun d Storag e Tan k Site s Ho w t o Evaluat e Alternativ e Cleanu p Technologie s fo r Undergroun d Storag e Tan k Site s httD://www.eDa.qov/swerust1/Dubs/index.htm#fDr q http://www.epa.g0v/swerustl/pubs/index.htm#fpr g http://www.epa.g0v/swerustl/pubs/index.htm#fpr g http://www.epa.g0v/swerustl/pubs/lndex.htm#fpr g UST Cleanu p Manua l 11 5 Ma y 200 9Orego n Departmen t o f Environmenta l Quality - Undergroun d Storag e Tan k Progra m

NAM E OF DOCUMEN T Integrate d Ris k

Informatio n Syste m (IRIS ) Institutiona l Controls : A Sit e Manager' s Guid e t o Identifying , Evaluatin g an d Selectin g Institutiona l Control s a t Supertun d an d RCR A Correctiv e Actio n Cleanup s Modelin g Subsurfac e Transpor t o f Petroleu m Hydrocarbon s Notificatio n fo rUndergroun d Storag e Tank s - EP A Fon n 7530- 1 RBC A Fat e & Transpor t Models : Compendiu m an d Selectio n Guidanc e Ris k Assessmen t Guidanc e fo rSuperfun d (RAGS) , Volum e 1 - Huma n Healt h Evaluatio n Manual , Par t B (1991 ) Soi l Screenin g Guidance : Technica l Backgroun d Documen t Soi l Screenin g Guidance : User' s Guid e Ke y OSWE R Groun d Wate rGuidance s an d Report s Tes t Method s fo rEvaluatin g Soli d Wast e (SW-846 ) W E B SIT E ADDRES S httD://www.eDa.qov/iri s httD://www.eDa.qov/superfund/Dolicv/ic/quide/quide.Dd f httD://www.eba.qov/athens/learn2mode l http://www.eDa.qov/oust/fedlaws/notlfv98.Dd f httD://www.eDa.qov/oust/rbdm/rbdmfnt.ht m httD://www.eDa.qov/oswer/riskassessment/raqsa/index.ht m httD://wvw.eDa.qov/suDerfund/health/conmedia/soil/index.ht m httD://www.eDa.qov/suDerfund/health/conmedia/soil/index.ht m

http://www.epa.qov/ada/Dublications.htm l httD;//www.eDa.qov/eDaoswer/hazwaste/test/sw846.ht m

- TH E FOLLOWIN G I S A GUIDANC E DOCUMEN T PUBLISHE D B

Y TH E U S ARM Y CORP S OF ENGINEERS Evaluatio n o f H.E.L.P . Mat e 200 0 fo rth e Identificatio n an d Quantificatio n o f Petroleu m Hydrocarbo n Product s httD://wvvw.crrel.usace.armv.mil/techpub/CRRE L ReDorts/reDorts/TR00-20.Dd f

- TH E FOLLOWIN G AR E PETROLEU M PRODUC T DOCUMENT S PUBLISHE D B Y TH E ASSOCIATIO N FO R TH E ENVIRONMENTA L H EALT H O F SOIL S ~ | Volum e 1 : Analysi s o f Petroleu m Hydrocarbon s i n Environmenta l Medi a Volum e 2 : Compositio n o f Petroleu m Mixture s Volum e 3 : Selectio n o f Representativ e TP H Fraction s Base d o n Fat e an d Transpor t Consideration s Volum e 4 : Developmen t o f Fractio n Specifi c Referenc e Dose s (RfDs ) an d Referenc e Concentratio n (RfCs ) fo rTota l Petroleu m Hydrocarbon s (TPH ) httD://aehs.com/Dublications/cataloq/contents/tDh.ht m httD://aehs.com/Dublications/cataloq/contents/tDh.ht m

. httD://aehs.com/Dublications/cataloq/contents/tDh.ht m httD://aehs.com/Dublications/cataloq/contents/tph.ht m Note : Internet

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