UNITE D STATE S ENVIRONMENTA L PROTECTIO N A C REGIO N 8 99 9 18 WSTREE T- SUIT E 30 0 DENVER , C O 80202-246 6 http://www.epa.gov/region0 8 202800 8

Ref : 8EPR-SR .

ACTIONMEMORANDU M SUBJECT :

FROM : THROUGH :

TO : Reques t

fo r Time-critica l Remova l Actio n a t th e Pin e Canyo nTownshi p Residentia l Are ao f th e Internationa l Smeltin g an dRefinin g Site , Tooel e County , Uta h Joshu a Knight , RP M 

# •fVCJ ^ Dal e Vodehnal , Directo r W\J<S ^ Superfun dRemedia l Progra m Steve n D
. Hawthorn , Supervis e Emergenc y Response , Tea m 

### Dou g Skie , Preparedness , Assessmen t rgenc yRespons e Program Ma x H . Dodson , Assistan t Regiona l Administrato r Offic e o f Ecosystem s Protectio n & Remediatio n Sit e ID# : 086 Y Categor y o f

Removal : Time-Critical , Potentia l Responsibl e Party-Lea d(PRP-Lead ) 

### I
. PURPOS E 

### Th e purpos e o f thi s Actio n Memorandumi s t o reques t and documen t approva l fo r th e propose d Remova l Actio n describe d herei n fo r oortion s o f residentia l neighborhood s a t th e Internationa l Smeltin g and Refinin g Superfund Sit e (UTD093120921 ) i n Pin e Canyon , Tooel e County , Uta h(IS&R Site ) . Th e are a o f th e IS& R Sit e addresse d b

ythi s Remova l Actio n comprise s th e Pin e Canyo n Townshi p residentia l are a (Pin e Canyo n Townshi p o r Site) . Th e Remova l Actio n wil l involv e excavatio n o f soil s containing elevate d level s o f lea d and arseni c fromresidentia l propertie s a t th e Site . Fo r th e 

### identifie d residentia l properties , th e to p 1 8 inche s o f existin g soi l wil l b e excavate d and transporte d Pag e 1 o f i l

Printed on Recycled

Paper

### • • off-sit e fo r

disposal
. Permeabl e geotextil e filte r fabri c wil l b e place do nth e sub-grad e an dcovere dwit hclea nfill , • Surfac e feature s wil l b e replace do r returne da s nearl y a s possible-t o "a s was " condition
. ; . Condition s existin g a t th e Sit e presen t

a n endangerinent
. t o huma n healt han dth e environmen t an dmee t

th e criteri afo r

initiatin g a Remova l Actio n unde r 4 0 C.F.R
. Sectio n300.41 5 (b ) (2 ) o f th e Nationa l Contingenc y Pla n(NCP )
. Th e action s discusse di n thi s memorandu mar e anticipate dt o requir e les s tha n1 2 month s t o complete
. Base do n th e natur e o f th e Sit e condition s 'an dresponse , ther e ar e n o nationally , significan t o r precedent-settin g issue s associate dwit hthi s Remova l Action
. ' I I SIT E CONDITION S AN D BACKGROUND ; .

A i gj+g

_Descriptio n I . Removal Sit e Evaluatio n . 

### Th e IS& RSit e wa s place do nth e Nationa l Prioritie s Lis t (NPL ) o nJul y 27 , 2000
. Th e IS& RSit e consist s o f land s impacte db y histori c smeltin g an dmillin g activitie s fro mth e IS& Rfacility
. On e Operabl e Uni t (O U 1 ) currentl y encompasse s th e entir e site
. .. . ARemedia l Investigation/Feasibilit y Stud y (RI/FS ) i s currentl y underwa y a t th e IS& RSite
. Th e RI/F S i s being
. performe db y apotentiall y responsibl e part y (PRP) , Atlanti c Richfield-Compan y (AR),
. unde r th e ' Administrativ e Orde r o nConsen t

fo r Remedia l Investigation/Feasibilit y Study , EP ADocke t No
. CERCLA

08-2001-1 2 (RI/F S Order)
. Th e investigatio n o f th e Pin e Canyo nTownshi p wa s complete di nJun e 2004.
. Th e investigatio n foun dtha t approximatel y 2 0 residentia l yard s hav e soil s abov e th e 58 0 pp mlea dhealth- , protectiv e cleanu p .leve l establishe db y EP A fo r thi s : 

### Site.
. . . • : ; . . •'.'.'..
. Th e are at o b e remediate dunde r thi s Remova l Action , th e pin e Canyo nTownshi p residentia l area , i s owne db y individua l residents
. Thi s Remova l Actio n i s expecte d t o b e conducte db y A Runde r aUnilatera l Administrativ e Orde r fo r Remova l Actio n (UAO )
. !



### Pag e 2 o f

1 12 . Physica l locatio n

Th e IS& RSit e i s locate dnea r Pin e Canyo nan dth e cit y o f Tooele , Utah , approximatel y 3 0 mile s southwes t o f • Sal t Lak e City , i n Tooel e County , Utah
. Th e IS& RSit e i s locate di n Section s 7 , 18 , 19 , an d3 0 o f .T3S-R3 Wan d Section s 12 , 13 , 14 , 23 , an d2 4 o f T3S-R4W , 'Sal t

Lak e Meridian
. Th e IS& RSit e i s roughl y bounde db y th e Oquirr hmountain s t o th e east , rura l residentia l an d farmlan do nth e nort han dsouth , an dPin e Canyo n Townshi p an dth e cit y o f Tooele
. t o th e west . Thi s Remova l Actio n wil l addres s th e Pin e Canyo nTownshi p are ao f th e IS& RSite
. A depictio n o f th e IS& RSit e wit hth e locatio n o f th e propose daction s i s presented : i nFigure s 1 & 2 (attached)
. . 

### •i 3 . Sit e Characteristic s 

### Coppe r smelting , bega n a t th e IS& R Sit e i n 1910 . Th e smelte r ha d a capacit yo f 4,00 0 ton s o f copper , or e pe r day . Tw o year s later , coppe r or e supplie s decline d and th e Internationa l Smelte r & Refinin g Compan y(TS&R ) , th e then-owne r o f th e facility , buil t a lea d smelter . I n 1914 , Th e Anacond a Compan y(Anaconda ) purchase d th e IS& R subsidiary . Over , severa l year s th e owner s adde d a lead

zin c sulfid e flotatio n mil l and a sla g treatmen t plan t fo r lea d and zin c recovery . Coppe r productio n cease d i n 1946 ' whe n the coppe r smelte r closed' . Lead smeltin g cease d i n earl y1972 . A n estimate d 650,00 0 ton s pe r yea r o f tailings , sla g and flu e dus t wer e produce d durin g earl yoperation s a t th e IS& R Site . A R i s th e curren t owne r o f th e Sit e and corporat e successo r t o IS& R and Anaconda . • Reclamatio n wor k a t th e Sit e wa s performe d i n 198 6 unde r a voluntar yagreemen t betwee n A R an d th e Stat e o f Utah . .Th e reclamatio n include d demolitio n o f al l building s a t th e Site , consolidatio n .o f th e wast e material , and a covering o f th e majorit yo f th e wast e material . Th e IS& R Sit e cover s abou t 1,20 0 acres , no t includin g th e Pin e Canyo n Township . Th e IS& R Sit e includes . approximatel y33 0 acre s o f tailings , 27.5 . acre s o f metal-contaminate d slag , 1 3 acre s o f settlin g ponds , abou t 5 0 acre s o f landfill s an d 12 5 acre s o f smelting wastes . Th e remainin g acreag e consist s o f ope n areas , mostl yunimpacte d b

ysmelte r operations , and the

- Pine Canyo n Townshi p residentia l area . Investigation s

Pag e 3 o f

1 1

### indicat e th e presenc e o f arsenic, , cadmium , copper , lead , mercur y an dzin c i n th e soils , tailing s an dslag
. T 

### h e

### Townshi p o f

Pin e Canyo n(formerl y Lincoln) ' 'i s locate do nth e wester nedg e o f th e IS& RSit e an d comprise s approximatel y 2 squar e mile s includin g approximatel y 10 0 residentia l properties
. .Approximatel y 20 0 peopl e liv e i nth e Pin e Canyo narea , includin g approximatel y 2 0 childre nunde r the
. ag e o f

14
. Fro mDecembe r

4 , 2001 , t o Jun e 13 , 2004 , AR , -unde r EP A oversigh t

i nconnectio nwit hth e RI/F S Order , performe d soi l samplin g activitie s i n th e Pin e Canyo ntownshi p residentia l are at o defin e th e area l exten t o f contamination
. Thes e samplin g effort s identifie d
. elevate dconcentration s o f contaminant s o f

concern , includin g lea dan darsenic , i n th e yar dsoil s o f variou s residences
. A Rals o performe dsampling , o f dus t i n severa l residences
. Th e result s o f thes e samplin g activitie s ar e include di n report s submitte dt o EPA , entitle d"Dat aSummar y Repor t - Wor k Are aNo
. 10 , date d Jun e 2002 , Addendu mNo
. 1 t o Dat aSummar y Repor t - Wor k Are aNo
. 10 , date dSeptembe r 2002 , an dLincol n •Residentia l Sampling , al l prepare db y Anderso n Engineerin g Company , Inc. , an daccepte db y EP Ao nJun e 12 , 2002 , October
. 18 , 2002 , an dJun e 23 , 2004 , respectivel y (collectivel y referre dt o a s Samplin g Reports )
. : 

### .:.•'
. i
. 

### A s describe di n the
. Samplin g Reports , soi l sampl e result s fro m2002-200 4 fro mth e Pin e Canyo nTownshi p showe delevate dlevel s o f lea drangin g fro m"Non-Detect " t o approximatel y 188 0 mg/k g (1880 | part s pe r millio n (ppm) ) i n residentia l yards
. Arseni c wa s detecte di n level s o f

u p t o 15 0 ppm . Lea dlevel s i n sample s o f househol ddus t

collecte di n Pin e Canyo ni n 20.02- 4 range d fro m9 3 t o 36 9 mg/kg
. | i - . 

### Tw o resident s hav e show nunacceptabl e level s o f bloo d lea da t o r abov e 1 0 microgram s pe r deciliter , th e leve l o f concer nindicate db y th e America nAcadem y o f Pediatrics
. - i I nJun e 2003 , EP A complete daris k assessmen t

entitle d "Baselin e Huma nHealt hRisk

- Assessmen t fo r th e Internationa l Smeltin g an dRefinin g Sit e Tooel e County , Uta h(Final)"
. USEPA , Regio n8 , June
. 200 3 ("EP A Ris k Assessment'' ) fo r

th e Pin e Canyo nResidentia l Are abase d

t 

### Pag e 4 o f

1 1 : 

### i

### on the Sampling Reports. Healthrbased action levels were established

by EPA based

on the EPA Risk Assessment

*• •' • 4
. Releas e o r

threatene dpleas e int o th e environmen t o f ahazardou s substanc e o r pollutan t

o r contaminan t 

### Lea dan darseni c ar e 'th e primar y contaminant s o f concer n wit hregar dt o huma nhealt hi nPin e Canyon
. Lea d.an d arseni c ar e hazardou s substance s a s define d.b y CERCL A Sectio n 10 1 (14)
. Thes e hazardou s substance s wer e release dint o loca l soil s b y histori c smeltin g an d millin g activitie s an dwer e transporte dt o th e residentia l area s b y surfac e runof f an daerea l depositio n fro mstac k emissions
. Lea dan darseni c i n soil s presen t

aris k o f incidenta l ingestion
. Th e level s o f

lea' dan darseni c reporte di n th e Sampl e Report s ar e abov e the—health-protectiv e residentia l soi l lea dcleanups/level s (actpp nlevels ) determine db y EP A fo r th e Sit e (58 0 ppm ) an asoi l arseni c cleanu p level s fo r th e Sit 4 (10 0 ppm). / Thes e actio n level s ar e consisten t

w,ithactio n level s determine db y EP A a t othe r Uta hSupe r

fun dsites
. ...- "

. 5
. NP Lstatu s Th e Sit e i s currentl yliste d o n th e NPL . B . n+Ve r Action s t o Dat e 1 . Previou s Action s N o prio r soi l remova l o r simila r remedia l action s hav e bee n take n fo r th e Pin e Canyo n Townshi p residentia l area . .'•'• • APreliminar yAssessment/Sit e Investigatio n (PA/SI ) was complete d i n 198 4 fo r th e IS& R Sit e b yth e Uta h Departmen t o f Environmenta l Qualit y(UDEQ) , wit h additiona l expande d S I wor k complete d i n 199 5 an d 1996 .

. i n Jul y2000 , EP Aliste d th e IS& R Site , o n th e NPL


### During th e year s 1986-1987 , A R performe d reclamatio n wor k a t th e IS&R Sit e t o contro l potentia l risk s t o healt hand th e environment . Th e reclamatio n wor k included : th e remova l o f remainin g building s and

Pag e 5 o f 1 1

### structures ; consolidatio no f wast e materials ; constructio n o f

stor mwate r

controls ; and,
. placemen t o f cove r soi l ove r

th e majorit y o f

disturbe dareas. . i 2 . Curren tAction s ; 

### Th e curren t

propose dRemova l Actio nwil l addres s al l th e risk s pose di nth e Pin e Canyo nTownshi p residentia l are a tha t wer e reporte di n th e Remedia l Investigation
.
•Th e Remedia l Investigatio n fo r th e IS& RSite'i s currentl y underwa y an di s schedule dt o b e complete di n Novembe r

2004
. Th e Feasibilit y Stud y i s estimate dt o b e complete di nApri l 2005
. C tstat e an d Loca l Authorities ' Roles . 

### UDE Qi s th e suppor t agenc y fo r

oversigh t

o f th e Remedia l Investigatio n an dFeasibilit y Stud y a t th e IS& RSite
. UDE Qwa s activel y involve di nth e preliminar y investigation s an dwil l continu e t o pla y avita l suppor t rol e i n thi s Remova l Action
. Bot hth e Townshi p o f Pin e Canyo nan dth e Count y o f Tooel e ar e awar e o f th e curren t Sit e condition s an dar e supportiv e o f th e action s take n t o date
. . . III . THREAT S T O PUBLI C HEALT H O RWELFARE .O RTH E ENVIRONMENT , AN D

STATUTORY AN D REGULATORY AUTHORITIE S A . Threat s t o Publi cHealt h o rWelfar e 

### Condition s a t

th e Sit e presen t

a n imminen t

an dsubstantia l endangermen t

t o huma nhealt han dth e environmen t and
. .meet th e criteri afo r

initiatin g aRemova l Actio n unde r 4 0 C.F.R
. sectio n 300.415(b ) (2 ) o f th e NCP. ' Th e followin g factor s fro mSectio n 300.415(b ) (2).o f th e NCP , for mth e basi s fo r EPA' s determination , o f th e threa t

presente dan dth e appropriat e actio n t o b e taken : j • i• 

### Actua l o r

potentia l exposur e t o nearb y huma n' populations , animal s o r th e foo dchai n fro m hazardou s substance s o r pollutant s o r

contaminants ; (iv ) Hig hlevel s o f hazardou s substance s o r pollutants , largel y a t

o r nea r th e surfac e o f

residentia l soils , tha t ma y migrate
. i Becaus e th e propertie s i n questio n ar e alread y bein g use da s residences , ther e i s asignificant , immediat e potentia l fo r continue dexposur e o f huma npopulatio n t o unacceptabl e Pag e 6 o f

1 1level s o f lea dan darseni c i n surfac e soils
. EP A
. . toxicologis t

Susa nGriffin , Ph.D. , DABT , ha s reviewe dth e dat aan dsupport s EPA' s determinatio no f actio n level s fo r thi s propose dRemova l Action
. . • ; . •

t o th e Environmen t Th e primar y threa t identifie di s exposur e t o huma n populations
. Pets , an dt o alesse r degre e wildlife , woul d b e affecte da s the y com e int o direc t contac t

wit hth e contaminatio n withi nth e residentia l areas . IV
. ENDAN GDETERMINATIO N Th e actua l o r

threatene drelease s o f hazardou s substances , fro m thi s Site , i f no t addresse db y implementin g th e respons e actio n selecte di n thi s Actio nMemorandum , ma y presen t a n imminen t

an d substantia l endangermen t t o publi c healt ho r welfar e o r

th e environment
. V PROPOSE D ACTION S AN D ESTIMATE D COST S

Aprocee dAction s 1 . Actio n descriptio n Th e primar y objectiv e o f thi s Remova l Actio n i s t o mitigat e th e threat s pose db y contaminate dsoil s whic h ar e presen t

a t th e Site
. Th e Remova l Actio n .consist s o f Sit e Stabilization , Remova l an dDisposal , an dSit e Restoration
. .Th e detail s o f thi s Remova l Actio n wil l b e presente dt o th e PR Pi n orde r t o develo p aWor k Pla n acceptabl e t o EPA
. Th e Wor k Pla n i s anticipate dt o b e include dwit hth e UA O expecte dt o b e issue dt o A Rfo r tn i s Site
. Th e wor k

includes : , ,

- Categorization and inventory of

soils as necessary for the approximately 20residences within the Pine Canyon residential

area;

• - Disposa l o f

th e contaminate dsoi l a t properl y designe d on-sit e repository ; an d

_Restoratio n o f

th e excavate darea s wit hclea n soil ; restoratio n o f

propertie s t o previou s sit e conditions
.

_Bottom-of-excavatio n samplin g t o b e utilize dfo r futur e institutiona l contro l purposes .

Pag e 7 o f

1 1

### Subsequen t action s wil l b e performe dt o th e exten t necessar y t o protec t huma nhealt ho r

th e environmen t

an d t o mitigat e th e threa t o f releas e o f

hazardou s substance s present . . j 2 . Contributio n t o Remedia l Performanc e 

### Thi s Remova l Actio ni s consisten t wit hth e long--ter m• remedia l actio n anticipate dt o b e take na t th e IS& R Site
. Thi s Remova l Actio nwil l complet e th e cleanu p fo r th e Pin e Canyo nTownshi p residentia l are aportion , o f th e IS& RSite ; therefore , n o further/remedia l actio n i s anticipate dt o b e require dfo r thi s portio n o f

the ' IS& R Site
. • ; ' .:••; • "..

_ 3
. Descriptio n o f Alternat e Technologie s . 

### Alternativ e technologies

- wer e develope dbase d-o nth e ' , intende dan dactual , lan dus e designatio n i n -th e Pin e Canyo nTownship : residential
. Tw o option s wer e considere dan devaluate dbase do n overal l protectio n t o human , healt han dth e environment , shor t an dlong-ter m effectiveness , implementabilit y an dcost . . (1 ) Excavat e al l soil s (0-1 8 inche s belo w groun dsurfac e (bgs) ) abov e lea dremediatio n( w 

### action" > .leve l an d backfil l wit hclea n topsoil
. ' (2 ) Cove r

al l soil s (0-1 8 inche s bgs ) abov e lea d remediatio n leve l wit hclea n topsoil
. . - 4
. Engineerin g Evaluation/Cos t Analysi s (EE/CA ) 

### A nEE/C Ai s no t

require dfo r

thi s action
. A s discusse d i nparagrap h3 , above , tw o option s wer e considere dan d evaluate dbase do n overal l protectio n t o huma nhealt h an dth e environment , shor t an dlon g ter meffectiveness , an dimplementability
. Alternative s wer e base do nth e intended-an dactua l residentia l lan dus e i n Pin e Canyon
. Th e chose noptio n i s Alternativ e 1 , Excavatio n an d Backfil l fo r

Contaminate dSoils , base do n its-superio r protectio n o f

huma nhealt han dth e environmen t ' consisten t

wit hth e residentia l cleanup s tha t -hav e bee n performe da t

othe r Uta hsites
. ; 5
. Applicabl e o r Relevan t

an dAppropriat e Requirement s (ARARa )
. 

### Thi s Remova l Actio nwil l attain , t o th e exten t practicable , considerin g th e exigencie s o f th e : P.ag e 8 of

1 1situation , al l applicabl e o r relevan t

an dappropriat e Federal , Stat e o r

loca l standards , criteri ao r regulation s . (ARARs ) , whicheve r ar e mor e stringent , fo r thi s Remova l Action
. A propose dlis t o f ARAR?
. identifie dfo r

thi s Remova l Action , i s presente di n Figur e 3 (attached)
. Th e PR Pmay . provid e additiona l ARAR s fo r

thi s Action , subjec t t o EP A approval
. 6
. Projec t

Schedul e Th e cleanu p wil l b e conducte di n th e 200 4 constructio n seaso n an dcomplete dwithi napproximatel y 1 2 month s afte r it s initiation
. B . ggjfcimate d Cost s EP Aanticipate s tha t th e entir e cos t

o f th e Remova l wil l b e born e b y AR , includin g oversigh t cost s (t o b e bille d subsequen t

t o completio no f

thi s Remova l Action. ) Oversigh t wil l b e conducte dprimaril y b y th e U S Burea u o f Reclamatio n i ncoordinatio n wit hth e EP A an dUDE QRemedia l Projec t Managers
. Th e estimate dcost s o f EP A performin g th e propose dactio n ar e a s follows : Extramura l Mob-Demobilizatio n. $5,00 0 Labo r 750,00 0 Equipmen t

32,00 0 Genera l Subcontract s 35,00 0 Analytica l Trave l ' 2 ° Subtota l
. . $996,00 0 

### Larg e Subcontract s . Disposa l 770,00 0 Acquir e Fil l & Soi l 240,00 0 Al l Transportatio n - -510,00 0 Subtota l $1,520,00 0 BO RDesig nPla t

(s ) 10,00 0 STARTSamplin g . 10,00 0 Subtota l $20,00 0 Tota l $2. , 536 , 00 0 Extramura l Contingenc y (20% ) $507,20 0 Extramura l Tota l $3,043,20 0 EP ACost s $1°° ' 00 0 Tota l Cos t

. $3,143,20 0

Pag e 9 of

1 1

### ThPs e estimate s d o no t includ e pre-judgemen t interes t

o r indirec t «* Q d o no t

tak e int o accoun t

othe r enforcemen t

costs , includin g Departmen t o f Justic e costs . Th e estimate s ar e fo r ^?,,«?rativ e purpose s onl y an dthei r use . i s no t

intende dt o 1 

### iia? P an v right s fo r responsibl e parties
. ! Neithe r the" , lac k

o f "®* i cos 

### t s estimate s no r deviatio no f

actua l cost s fro mthi s estimat e wil l affec t th e Unite dStates ' righ t t o cos t

recovery . V I EXPECTE D CHANG EI NTH ESITUATIO NSHOUL D ACTIO NB EDELAYED

O RNO T TAKEN| 

### if no removal

action is taken or if action! is delayed, the ^• ?H*nt s i n th e Sit e wil l continu e t o b e expose dt o hig h level s • r 

### ? S 

### ^a 2 an darsenic , th e residentia l contaminatio n woul d continu e t o presen t a n unacceptabl e ris k t o th e curren t residents
. VII . OUTSTANDIN G POLIC Y ISSUE S I 

### Non e j VIII . ENFORCEMENT , 

### Thi s wor k

i s bein g conducte d.throug hth e u U o f EP A CERCL A
. Thi s wo 

### * * authority
. A Confidentia l Enforcemen t Memorandum-i s ^heTa s Attain t 1
. EP A anticipates : tha t th e potentiall y Snnlibl e part y fo r

th e Site , AR , wil l complet e th e wor k unde r a e 

### Unilatera l Administrativ e Orde r t o b e issue dsubsequent ; t o thi s Actio n Memorandum
. . . j IX . RECOMMENDATION S . | 

### TV^C , decisio n documen t represent s th e selecte dRemova l Actio n fo r ?£ i internationa l Smeltin g an dRefinin g Sit e i n Pin e Canyon , 5 n o rnuntv , Utah
. Th e selecte dRemova l Actio n was - develope d ^rdanc e wit hCERCLA , a s amended , an di s no t inconsisten t wit hth e NCP ? Thi s decisio n i s base do n th e administrativ e • recor dfo r

th e Site
. rendition s a t

th e Sit e me t

th e NC Pcriteri afo r aremova l se t

- f 

### t i a t 4 0 C.F.R
. sectio n 300.41. 5 (b ) (2 ) ali dI recommen dyou r approva l o f

th e propose dPRP-lea dRemova l Action
.
Date : Approve : 

### Ma xH . Dodso n . !

Assistan t Regiona l Administrato r Offic e o f Ecosyste mProtectio n and Remediatio n 

### i Pag e 1 0 o f 1 1 !

### Disapprove : __. Date:
. Ma x H
. Dodso n. Assistan t

Regiona l Administrato r : • • '.

- Offic e o f

Ecosyste mProtectio n an dRemediatio n

Attachments : Figur e 1 - Ma 

### Po f IS& Rsit e 

### Figur e 2 - Detaile dma p o f IS& RSit e showin g residentia l area s Figur e 3 - Applicabl e o r Relevan t

an dAppropriat e Requirement s Attachmen t

1 ~ Confidentia l Enforcemen t Addendu m.

Pag e 1 1 o

f 1 1. :? 5rT : ij*''i?'^'^'f*'rin : fi' !r:^ft'if T V'i y ' : * K'''"' t:: " '

•*S"»iSi«p*-S-iiS<C!'i?Sf/K!;S- W0 IKDKOUN O 4FHflOUM ) D mifUXH O O (TMWXK O • HHROUN D fx ] SCREE

N N O LCVB . (M O ' PTO )

•AHPUI M R&SULT

*

»» r L« aorrr , ur« * » n i » MB wwi «or f t com . mavota . o n stmoauct o WITHOU TIMM

### Figure 3 Applicabl e o r

Relevant an dAppropriat e Requirement s (ARARs ) International Smeltin g an dRefinin g Actio nMemorandu m

Tabl e 1-Chemical Specifi c ARAR s

y ast i es . generate d durin g th e remova l action s w i 1 1 b e identifie d an d liste d a s hazardou s wastes , a s appropriate . 26 1 CF RPart " 5 0 Listin g o f

Hazardou s wast e A M alternative s wi n meet tn e emissio n standard s o rthi s regulation
. Nationa l Amoien t Ai rQualit

y Standard s (NAAQS ) TATE : 

### ikdRjlb-2- 1 identificatio n an d

Listin g o f Hazardou s wast e taste s generate d durin g th e remova l action s wi n o e identifie d an a liste d a s hazardou s wastes , a s appropriate . Al l alternative s wil l compl ywit h stor m wate rrunoffrequirement s t o protec t surrac e neate rbodie s 

### RJ17- 2 surfac e wate r Protectio n RemoWTof"contaminate d soi l woul d promot e protectio n o rgroun d water
. Repository wil l b e constructe d t o no t b e nea rgroundwater , s o actio n i s expecte d t o compl ywit n this standard. ^ , , Emission s fro m th e excavatio n an d disposa l operation s wi n mee t w e standard s thi s regulation
. Remova l action s are no t expecte d t o caus e significan t «*-* * emissions
. 

### UAC " Ril7- b UA C R315-8- 6 

### Ground wate r T1 

### !

Qualit yProtectio

n Rul e ; UA C R307 - 201-1(1 ) Ein i ss i o n Standard s

- visibl e Emission s UA C R307-20 S Emissio n standards :

Fugitiv e Emission s an d Fugitiv e Dust Fugitiv e dust wi.
. _ __ excavation , disposal , an d soi l covering . controlle d durin g groun d disturbin g activitie s suc n a s

Page 1 o f7Table 2 - Actio nSpecifi c ARAR s

FEDERAL : Generatio

n o f Hazardous wast e

Closur e

surfac e wate r Contro l Stagin g Pile s Criteri a fo r Classificatio

n o f soli d wast e Disposa l an

d Practice s Resourc e

conservatio

n an d Recover yAct , 4 0 CF R Part s 26 2 an d 26 3 4 0 CF R 26 4 Subpar t G 4 0 CF R 264.31 0
4 0 CF R 264.554(d ) 4 0 CF R 264.55 4 4 0 CF R 257. 3 Requirement s fo r hazardou s

vast e generator s an

d for tazardou s wast e transporter s Requirement s for pos t closur e tha t ensur e preventio n o f derma l an d inges t ion exposur e an

d contaminan t transport . Surfac e wate r contro l measure s require d fo r stagin g pile s Requirement s fo r stagin g pile s Regulate s classification an d disposal o f solid waste . land ! ing an d transportatio n o f hazardou s waste s wil l b e performed i n complianc e wit hthi s ARAR .
i f contaminate d soil s abov e PRG s wil l remai n i n place , actions , suc ha s placemen t o f soi l covers , mus t b e take n t o preven t derma l an d ingestio n exposur e an d contaminan t transport . Th e material s goin g int o repositoryar e being consolidate d i n an are a o f contamination . Al l remova l alternative s usin g staging pile s wil l operat e run-on/run-of f control s t o protec t huma n healthan

d th e environment . Al l remova l alternative s usin g stagin g pile s wil l addres s temporar

ystorag e o f remediatio n waste s 1 n pile s durin g remova l activities . Al l alternative s wil l manag e th e soli d wast e i n accordance withthes e regulations . 

### STATE : ^ corrective Action cleanu

p

Hazardou s wast e Generato r 

### Closur e an d Post-Closure 

## UA

C uii- m

UA C R315- 1 Cleanu

p standards .

Contaminate d so i i remova l regulation s 

### Closure Regulations The remova l alternative s wi n employappropriat e measure s t o contro l o r remove contaminan t source s an d wil l utiliz e soi l cleanup standard s tha t ar e protectiv

e o f publi c healt

han d th e environment . Handlin g an

d transportatio n o r nazardou s waste s wi n b e performe d i n complianc e wit hthi s ARAR . _^ ^ Closur e wil l DC performe d t o minimiz e mninteiiain. c «i u threa t t o huma n healt han d th e environment . Alternative s leavin

g contaminated soi l i n plac e o r disposin g o f contaminate

d soi l 1 n a

n on-sit e repositor ywil l conduc t 30-yea

r post-closur e car e i f Page2o f7 M f 7.W Mutan l

Emission s UA C R307-405- 6

UAC R307-413- 2 UAG R307-401-6 RcgulationsTfo rth e

emissio n Into th e ai r „. . alternative s Wil l preven t emission s o raT T contaminant s i n significan t quantities
. Al l alternative s wil l meet applicabl e emissio n requirements ofR30 7 an d th e Uta h Stat e Implementatio n Plan
. . i f emission s excee d th e d e minimi s standards , the n complianc e wit h R307-401- 6 i s required
. soii a an a Hazardou s Definition s I UA C RilS- l soli d an d Hazardou s wast e Definitions an

d Reference s lApplicabl e definition s and reference s can b e foun d i n \thi s regulation . wast e PIle s

Landt i M S owne r Responsibilit y 

### fo r Soli d wast e UAC Rili-8-l Z

UAC RJ15-B-1 4 UA C R315-301- 3 Establishe s requirement s

fo r wast e pile s t o preven t contaminan t migratio n t o adjacen t subsurfac e soil , groundwate r o r surfac e [water .

cTo s an d installatio n o t Landfill s soli d wast e disposa l requlrements es e measure s wil l b £ taken , includin g installatio n o f appropriat e liner s an d leachat e collectio n system s a s necessary .

Thes e standard s are ; applicabl e t o alternative s that involv e th e generatio n of soli d wast e an d th e disposa l o f that wast e i n a n on-sit e repository
. The y ar e relevan t an d appropriat e t o alternative s that involv e placemen t o f a cove rove rcontaminate d soi l tha t remain s I n place
. Thes e regulation s w i 1 1 b e followe d fo ran ydisposa l o f

waste . ^_^__^_

_^

_ waste s generate d durin g th e remova l activitie s wil l b e manage d and dispose d i n accordanc e wit hth e UtahSoli d wast e Permitting an d Managemen t Rule s an

d th e Uta hsoli d and Hazardou s wast e Act . 

### ur e Post-Closur e UA C R315-302- 3 Closur e w i 1 1 b e performe d t o minimiz e maintenanc e an d threat s t o huma n healt h an d th e environment .

industria l so n a wast e Facility Requirement s an d Landfil l in g Standard s Groun d Wate r Monitorin g Requirement s UA C UAC R315-30 4
UA C Rili Regulation s fo rleavin g

contaminate d soi l i n plac e o rdispos e of contaminate d soi l a t a n on-sit e 

### reposito n regulation s fo r placemen t o f contaminated soi l Alternative s m l compl ywit htnes e standards . Alternative s involvin g th e placemen t o f soli d waste s i na n on-sit e repositor

ymus t compl ywit hth e groun d wate r monitorin g requirement s o f th e rul e unles s th e criteri a o f UA

C R315-302-l(2)(e)(vi ) or R315-308-K3 ) .ar e me t fo r a

n exceptio n o r waiver . Page 3 of7 MO * Julr7.M0 4PIlesUse c

Storag e and reatmen t Regulation s to r storag e 0 1 remediatio nwaste s i npile s mor e tha n9 0 day s AT T remova l alternative s tna t stor e remediatio nwaste s npile s mor e tha n9 0 day s wil l compl y wit hth e applicabl e requirement s o f thi s standard . Cleanu pan d Risk-Base d Closur e standard UAC RJli-lO l Appropriat e sit e management , suc ha s corrective action , pos t closur e care , and institutiona l control s i s require dbasedon

Page4o f 7Tabl e 3 - Location-specifi c ARAR s



### FEDERAL : Fo r al l alternatives , measure s woul dD C take nt o preserv e histori c propertie s andminimiz e har m t o Nationa l Histori c Landmarks . ' lationa i Histori c Preservation ! Ac t 3 6 CF RPar t 80 0 4 0 CFRpar t Histori c projec t ownedo r controlle db

y Federa l agency . >aeologica l and'Histori c Preservatio nAc t 4 UCF RPar t b.iUllc ) 1 6 us e Sectio n46 9 . ca nwate r Ac t sectio

n 4 0 CF RPar t 230 , 3 3 CFRPar t 230 , 3 3 CFRPart s 320-33 0 4 0 CFRPar t 6 , Appendi xA Executiv e orde r 1199 0 4 0 CFR6.302Ca" ) i t an yremova l activit yvnn caus e irreparabl e los s o r destructio n o f significan t cultura l resources , dat a recovery and preservatio n activitie s wil l b e conducte d i n accordanc e wit hthes e requirement s KB Wetland s



### 4 0 

### CF R 4 0 CF R257. 8 Fo r al l alternatives , measure s woul db e take nt o avoi d advers e effects , minimiz e potentia l harm , an dpreserv e an d enhanc e wetlands , t o th e exten t possible , i f wetlan dimpact s d o occur , measure s woul db e take nt o restor e o r mitigat e wetlands . Action s take nwitni n1UO yea r floodplai n Fo r al l alternatives , activitie s woui a eitne r occu r outsia e th e 100-year floodplai no r designe dan dmaintaine dt o preven t washou t o f th e soi l covers . Floodplai nregulation s ar e Relevan t andAppropriat e t o on-sit e activitie s relate dt o 1n situwast e closur e o r movemen t andconsolidatio no f remediatio nwast e withi nth e are a o f contamination . Thes e regulation s ar e applicabl e t o activitie s involvin g generatio n o r placemen t o f soli dwaste .

PaoeSo f 7 WT7.M0 4rotectio nofFloodplain s

4 0 CF R 6 , Appendi xA) ; is han dwildlif e .oordinationAc t (1 6 US C 66 1 t seg. ) 0 CFR6.302(b ) & (g ) Executiv e orde r 1198 8 (Floodplai nManagemen t Regulations ) withi n floodplain , natura l streams , an

d bodie s o f water .



### us c 

### 153 1 e t 4 0 CF R 6.302(n ) 

### MigratoryBir d Treat

yAc t 

### (1 6 us e § § e t >l i cabl e Fo r al l alternatives , measure s woul db e take nt o avoi d adverse , effects , minimiz e potentia l harm , restor e an d preserv e natura l an dbeneficia l value s o f floodplains . Fis h an dwildlif e habitat s i nnatura l stream s an dbodie s o f wate r woul db e protecte da s necessary . Complianc e wit hth e consultatio nrequirement s o f th e fis han dwildlif e provision s woul doccur .
Protectio no r endangere d specie s andmigrator y bird s ppncaoi e t o a nalternatives , i f endangere dspecie s or ' migrator y bird s ar e presen t a t th e site .


### STATE : UA C RJ15-J02- 1 IUlb-8-2 . Locationstandard s ro r

disposa l facilit y Soli dwast e managemen t tacitit y wi1 1 b e locatedi naccordanc e wit hthi s regulation . Thes e regulation s ar e applicabl e t o activitie s involvin g generatio no r placemen t o f soli dwaste . ^^"^^^•"Tr*^""TMTT^TM^^^"^ff^'^^^^^'^^^"""^T^*""" 1 ^^"^""^"•"^~* — ^"^^^^•^•^*TM"^ — ^^"•^^"^•TM" - "^TMTM' —

^*""*

— ^•^TM l Fiooapiain s Fo ral l alternatives , activitie s woul d eithe r occu routsid e th e floodplai n o rdesigne d an d maintaine d t o preven t washou t ofth e soi l covers . Floodplai n regulation s are Relevan t an d Appropriat e t o on-s1t e activitie s relate d t o in-slt u wast e closur e o rmovemen t an d consolidatio n o fremediatio n wast e withi n th e are a o fcontamination . Thes e regulation s ar e applicabl e t o activitie s involvin g generatio n o r placemen t o f

Page 6 o f 7 Mud : M y 7.2004-r '

Tabl e 14-

4 - To B e Considered(TBC ) Materia l
Clarificatio n t b th e 1994 Revise d Interi m Soi l Lea d Guidanc e fo r CERCL Asite s an d RCRA correctiv e Actio n Facilitie s OSWE R D i rectiv e #9200.4-27 ? Augus t 199

8

center s ro rDiseas e Contro l an d Preventio n (CDC ) Guidanc e fo r determinin g soi l lea d actio n level s offic e o f Soli d wast e an d Emergenc yRespons e (OSWER ) recommend s tha t th e integrate d exposur e uptake an d biokineti c(IEUBK ) mode l b e use d a s th e primar ytoo l t o generat e risk-base d soi l cleanu p level s a t lea d site s fo r curren t o rfuture residentia l lan d use . i n selectin g managemen t strategies , i t I s OSWER' s preferenc e t o see k earl yris k

reductio n wit h a combinatio n o fengineerin g control s (action s whic h permanentl y remove o r trea t contaminants , o r creat e reliabl e barrier s t o mitigat e th e ris k o f exposure ; an d non-engineerin g respons e action s (suc h a s educatio n an d healt h interventio n programs) . A s a give n projec t progresses , OSWE R recognizes th e NC R preferenc e fo rpermanen t remedie s an d emphasize s selectio n o fengineerin g ove rnon-engineerin g remedies fo rlong-ter m respons e actions . "Preventin g Lea d Poisonin g i n Youn g Children : A statemen t byth e Center s fo r Diseas e control" , Octobe r 199 1 CD C recommend s tha t tner e snoui a o e no mor e tha na ! > percen t chanc e tna t

childre naged1 t o 3 hav e bloodlevel s highe r than1 0 ug/dL .



### Page 7 o f 7 M y 7,2004