### r r

202066 8

o 

### I UNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y

' " REGIO N 8 99 9 18 TM STREE T- SUIT E 30 0 DENVER , C O 80202-246 6 Phon e 800-227-891 7 http://www.epa.gov/region0 8 

### Ref:8EN F JU L 2 2 20 W 

### CERTIFIED MAIL Richar dO

. Curley , Jr

. RETUR N RECEIP T REQUESTE D Counse l fo r

Atlanti c Richfiel dCompan y Hollan d& Hart , L.L.P

. P.O

. Bo x 874 9 Denver , C O 80201-874 9 Re : Internationa l Smeltin g an dRefinin g Site ; Unilatera l Administrativ e Order fo r Soi l Remova l Dea r Mr

. Curley , A s w e recentl y discussed , th e U S Environmental Protectio n Agency , Regio n 8 (EPA) , i s issuin g t o th e Atlanti c Richfiel dCompan y an Administrativ e Orde r fo r Removal Respons e Activitie s (Order)(enclosed) , effectiv e fiv e (5 ) day s fro mth e date o f signin g b y EPA

. Th e Order require s Atlanti c Richfiel dto conduc t residentia

l soil remova

l i n identifie dyard s i n th e Pin e Canyo n Townshi p are ao f th e Internationa l Smeltin g an dRefinin g Superfun dSite , Tooel e County , Utah , an dt o submi t afina l report

o n th e action s performed

. EP A discusse dwithyo u th e optio n o f performin g thi s work

unde r a n administrativ e orde r o n consent
. Yo u indicate dtha t i n ligh t o f th e nee dt o begi n thi s wor k expeditiously , you r

client , Atlanti c Richfield , woul dno t object t o th e issuanc e o f

aunilatera l administrativ e order fo r th e work i n lie u o f negotiatin g an orde r

o n consent
. EP A recognize s Atlanti c Richfield' s effort s t o complet e th e necessar

y samplin g at

thi s Site an di n th e developmen t o f asuitabl e wor

k plan , an d anticipate s you r

continue dcooperatio n durin g th e soi l remova l phase

. I f yo u hav e an y question s regardin g thi s matter , pleas e cal l m e at (303 ) 312-6912

.

ic s Stearn s Staf f Attorne y Enclosur e

cc : Joshu aKnight , EP A Remedial Projec t Manager Daw n Tesorero , EP A Technical Enforcemen t Program Pamel aKaye , ARC O Environmenta l Remediation , LL C Robert O'Brien , UtahDE Q

Printed on Recycled

PaperUNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y REGIO N 8 99 9 18 TM STREE T- SUIT E 30 0 DENVER , C O 80202-246 6 Phon e 800-227-891 7 http://www.epa.gov/region0 8 

### JU L2 2 2004 Ref:8EN FOU L CERTIFIE D MAI L Richar d0

. Curley , Jr

. RETUR N RECEIP T REQUESTE D Counse l fo r

Atlanti c Richfiel dCompan y Hollan d& Hart , L.L.P

. P.O

. Bo x 874 9 Denver , C O 80201-874 9 Re : Internationa l Smeltin g an dRefinin g Site ; Unilatera l Administrativ e Orde r fo r Soi l Remova l Dea r Mr

. Curley , A s w e recentl y discussed , th e U S Environmenta l Protectio n Agency , Regio n 8 (EPA) , i s issuin g to the Atlanti c Richfiel dCompan y an Administrativ e Order for Remova l Respons e Activitie s (Order)(enclosed) , effectiv e fiv e (5 ) day s fro mth e date o f signin g b y EPA

. Th e Order require s Atlanti c Richfiel dt o conduc t residentia l soi l remova l i n identifie dyard s i n th e Pin e Canyo n Townshi p are ao f th e Internationa l Smeltin g an dRefinin g Superfun dSite , Tooel e County , Utah , an dt o submi t afina l report

o n th e action s performed

. EP A discusse dwit hyo u th e optio n o f performin g thi s work

unde r a n administrativ e orde r o n consent
. Yo u indicate dthat i n ligh t o f th e nee dt o begi n thi s work expeditiously , you r

client , Atlanti c Richfield , woul dno t objec t t o th e issuanc e o f

aunilatera l administrativ e orde r fo r th e work i n lie u o f negotiatin g a n orde r

o n consent
. EP A recognize s Atlanti c Richfield' s effort s t o complete th e necessar

y samplin g at

thi s Site an di n th e developmen t o f asuitabl e wor

k plan , an d anticipate s you r

continue dcooperatio n durin g th e soi l remova l phase

. I f yo u hav e an y question s regardin g thi s matter , pleas e cal l m e at (303 ) 312-6912

. Si

ic s Stearn s staf f Attorne y Enclosur e

cc : Joshu aKnight , EP A Remedia l Projec t Manage r Daw n Tesorero , EP A Technical Enforcemen t Program Pamel aKaye , ARC O Environmenta l Remediation , LL C Robert O'Brien , UtahDE Q

Printed on Recycled

Paper

### UNITED STATES 20ft o JU L2 2 ENVIRONMENTALPROTECTIO N AGENC Y

REGIO N Vff

l HLL. L



## EP AREGIO NVll i KEAR!N RCLFR K ) 

### IN THE MATTE

ROF : ) ) UNILATERALADMTNISTRATIVE Internationa l Smeltin g an dRefinin g ) ORDE RFO RREMOVA LRESPONS E Site ) ACTIVITIE S Tooel e County , Uta h) ) U.S

. EPA Regio n VO I ) Docke t

No

. CERCLA-08-2004-001 6 ) 

### Atlanti c Richfiel dCompan y ) Proceedin g Unde r Sectio n 106(a

) o f th e ) Comprehensiv e Environmenta l Respondent

. ) Response , Compensation , an dLiability ) Act , a s amended , 4 2 U.S.C

. § 9606(a)

### TABL E OF CONTENT S

I

. TTTRISDICTIO NAN D GENERALPROVISIONS

. 2 II

. PARTIE S BOUN D 2 HI

. DEFINITION S 2 IV

. FTNDING S O FFACT

. 4 Site Descriptio n an dHistor y 4 Releas e or

ThreatenedReleas e , 5 

### Endangerment

5 Respondent

6 Respons e Action s 7 V CONCLUSION S O FLAWAN D DETERMINATIONS

. 7 VI

. ORDER8 Notic e o f Intent to Comply 8 Designatio n o f

Contractor , Projec t

Coordinator , an dOn-Scene Coordinator 8 Wor k t o b e Performe d9 Reportin g H Fina l Repor t 1 1 Acces s to Propert

y an dInformatio n 1 1 RecordRetention , Documentation , Availabilit y o f Informatio n 1 2 Off-sit e Shipment s 1 2 Complianc e wit

hOthe r Law s 1 3 Emergenc y Respons e an dNotificatio n o f Release s 1 3 VII

. AT JTHORIT Y O FTH EON-SCENECOORDINATO R1 3 VHI

. F.NFORCEMENT : PENALTIE S FO RNONCQMPLIANC E1 4 IX

. RESERVATIO N O FRIGHT S 1 4 X

. OTHE

RCLAIM S 1 4 XI MODIFICATION S 1 5 YTTMDTTC EO FCOMPLETION

. 1 5 XIII

. ACCES S T O ADMINISTRATIV ERECORD 1 5 XIV

. OPPORTUNIT Y T O CONFER

. 1 5 XV

. INSURANC E1 6 XVI

. ADDITIONA LREMOVALACTIONS

. 1 6 XVII

. SEVERABILITY

. •* • 1 6 XVIII

. EFFECTIVEDAT E1 7 APPENDICES : 1 aan db - Sit e Map s 2 - Actio n Memorandu m 3 - Sampl e result sI 

# I I . JURISDICTIO N AND GENERA L PROVISION S

1

. Thi s Orde r

i s issue dpursuan t

to th e authority veste di n th e Presiden t o f th e Unite dState s b y sectio n 106(a) o f

th e Comprehensiv e Environmental Response , Compensation , an dLiability Ac t o f 1980,4 2 U.S.C

. § 9606(a) , a s amende d("CERCLA") , an ddelegate dto th e Administrato r o f th e Unite dState s Environmental Protectio n Agenc y ("EPA" ) b y Executiv e Orde r No

. 12580 , Januar

y 23 , 1987 , 5 2 Federa l Registe r 2923 , an dfurthe r

delegate dt o th e Regiona l Administrator s b y EP A Delegatio n Nos

. 14-14- A an d14-14- B an dt o th e undersigne dEP A officials

. 2

. Thi s Orde r

pertain s t o property locate dat th e Internationa l Smeltin g an dRefinin g Sit e ("IS&RSite") , locate do n the wester n slop e o f the Oquirr

hMountain s i n Tooele County , Utah , an d depicte dgenerall y o n th e ma p attache da s Appendi x l at o thi s Order

. I n particular , thi s Order pertain s to th e residential are awithin , o r know n as , th e Townshi p o f Pin e Canyo n ("Pine Canyon " o r "Site" ) depicte do n th e ma p attache da s Appendi x Ib to thi s Order

. Thi s Orde r require s th e Responden t

t o conduc t

th e Removal Action s describe dherei nt o abate an imminen t an dsubstantial endangerment

t o th e publi c healt

ho r welfar e o r

th e environmen t

that may b e presente db y th e actual o r threatene dreleas e o f

hazardou s substance s a

t o r fro mth e Site

. 3

. EP

A ha s notifie dthe Stat

e o f Uta ho f thi s action pursuant

t o section 106(a

) o f CERCLA , 4 2 U.S.C

. § 9606(a)

. II . PARTIE S BOUN D 4

. Thi s Order

applie s to an di s bindin g upo n Respondent an dRespondent' s heirs , directors , officers , employees , agents , receivers , trustees , successor s an dassigns

. Any chang e i n ownership o r corporate statu s o f

Respondent , including , bu t no t limite dto , any transfe r

o f asset s o r real o r personal property shal l i n n o wa

y alte r Respondent' s responsibilitie s under thi s Order

. 5

. Responden t

shal l ensure that

it s contractors , subcontractors , an drepresentative s receiv e acop y o f thi s Order

an dcompl y withthi s Order

. Responden t shal l b e responsibl e fo r

an y noncomplianc e wit hthi s Order

. III . DEFINITION S 6

. Unles s otherwis e expressl y provide dherein , term s use di n thi s Orde r whic hare define di n CERCL A o r

i n regulation s promulgate dunde r CERCL A shal l hav e th e meanin g assigne dt o the mi n CERCLA o r

i n suc hregulations

. Whenever term s liste dbelo w are use di n thi s Order o r i n th e appendice s attache dheret o an dincorporate dhereunder , th e followin g definition s shall apply : "Action Memorandum " shall mean th e Actio n Memorandu missuedb y EPA for th e Pine Canyo n Residentia l Are ao f th e International Smeltin g an dRefinin g Sit e o n Jul y 16,2004 , an dattache dto thi s Order a s Appendi x 2

. "CERCLA " shal l mean th e Comprehensiv e Environmental Response , Compensation , an d Liabilit y Act of 1980 , a s amended , 4 2 U.S.C

. § § 9601 , e t seq . "Day " shal l mean acalendar day unles s expressl y state dto b e aworkin g day

. "Workin g day " shal l mean aday other

than aSaturday , Sunday , o r Federal holiday

. I n computin g an y perio do f

tim e unde r

thi s Order , where th e las t day woul dfal l o n aSaturday , Sunday , o r Federal holiday , th e perio dshall ru n unti l th e clos e o f busines s o f

th e next workin g day

. "Effectiv e Date " shal l b e th e effectiv e date o f thi s Order

a s provide di n Sectio n XVIII

. "EPA " shal l mean th e Unite dState s Environmental Protectio n Agenc y an dan y successor department s o r

agencie s o f

th e Unite dStates

. "Interest " shal l mean interes t at th e rate specifie dfo r

interes t o n investment s o f

th e Hazardou s Substanc e Superfun destablishe dunde r Subchapter

A o f Chapte r 9 8 o f Titl e 2 6 o f

th e Unite d State s Code , compounde dannuall y o n October 1 o f eachyear , i n accordanc e wit h4 2 U.S.C

. § 9607(a)

. Th e applicabl e rate o f interes t shal l b e th e rate i n effec t

at th e tun e o f

accrual

. "National Contingenc y Plan " o r "NCP " shal l mean th e Nationa l Oi l an dHazardou s Substance s Pollutio n Contingenc y Plan promulgate dpursuan t t o sectio n 10 5 o f

CERCLA , 4 2 U.S.C

. § 9605 , codifie da t 4 0 C.F.R

. Par

t 300 , an dany amendment s thereto

. "Order " shal l mean thi s Unilateral Administrativ e Orde r an dal l appendice s attache dhereto , whic hare hereb y incorporate db y reference

. I n th e event o f conflic t between thi s Order

an d any appendix , thi s Order

shal l control

. "Paragraph " shall mean aportio n o f thi s Order

identifie db y an arabi c numeral

. "RCRA " shal l mean th e Soli dWaste Disposal Act , a s amended , 4 2 U.S.C

. § § 6901 , e t seq. . (als o know n a s th e Resourc e Conservatio n an dRecover y Act)

. "Removal Actions " shal l mean thos e activitie s t o b e undertake n b y Responden t i n accordanc e withth e Residentia l Soi l Removal Work Pla n a s approve db y EP A pursuan t t o thi s Order

. "Section " shal l mean aportio n o f thi s Order

identifie db y aroman numeral

. "Site " o r "Pin e Canyon " shal l mean th e residential are awithin , o r know n as , th e Townshi p o f Pin e Canyon , comprisin g part o f th e International Smeltin g & Refinin g National Priorit y Lis t Superfun dSite , i n Tooel e County , Utah , depicte dgenerall y o n th e ma p attache da s Appendi x l aan di n mor e detai l o n th e map attache da s Appendi x I b t o thi s Order

. Th e Site als o encompasse s any area s that hazardou s substance s or pollutant s or

contaminant s fro mSit

e activitie s are foun dt o hav e bee n place do n o r t o hav e migrated

. "Wast e Material " shal l mean (1 ) any "hazardou s substance " under sectio n 101(14 ) o f CERCLA , 4 2 U.S.C

. § 9601(14) ; an d(2 ) an y pollutan t o r contaminan t

unde r sectio n 101(33 ) o f CERCLA , 4 2 U.S.C

. § 9601(33)

. "Work " shal l mean al l activitie s Responden t i s require dt o performunde r thi s Order

. "Wor k Plan " shal l mean th e plan entitle d"Residential Soi l Removal Wor k Plan " require dt o b e submitte db y Respondent , an dan y modification s mad e t o th e Wor k Plan i n accordanc e wit hthi s Order , a s approve db y EPA pursuant to thi s Order

.

### IV . FINDING S O F FAC T

Sit e Descriptio n an d History 7

. I n 1910 , International Smelting & Refinin g Company (IS&R ) began operatin g acoppe r smelter (als o referre dto a s th e "Tooel e Smelter" ) o n th e wester n slop e o f th e OquirrhMountain s approximatel y thre e mile s eas t o f Tooele , Utah

. I n 1914 , Anacond aCopper Minin g Company , later know n a s Th e Anacond aCompan y (Anaconda) , acquire dal l o f th e stoc k o f IS&R , whic hwa s the n dissolved

. A ne w corporation , Internationa l Smeltin g Compan y (ISC) , wa s forme dan dAnaconda , the majo r shareholder

o f ISC , transferre dthe assets o f the Tooele Smelte

r facility to ISC

. In 1934 , IS C change dit s nam e t o Internationa l Smeltin g & Refinin g Company , th e sam e nam e a s th e company that

firs t operate dth e facility

. Th e newl y forme dIS& Rowne dan doperate dth e Tooel e Smelte r unti l 197 3 whe n IS& Rwa s merge dint o Anaconda

. Th e Respondent , Atlanti c Richfiel d Compan y (AR) , acquire dAnacond ai n 197 7 an dmerge dAnacond aint o A Ri n 1981

. Th e Responden t

i s th e curren t

owner o f th e forme r

smeltin g an dore processin g portion s o f th e IS& RSite

. 8

. Fo r more than sixty years , fro m191 0 unti l 1972 , th e Site wa s use dfo r processin g lead , copper an dzin c ores . Copper

smeltin g began i n 191 0 unde r th e ownershi p o f

IS&R , wit

h4,00 0 ton s o f coppe r ore per day bein g processed

. I n 1912 , IS& Rbuil t alea dsmelter

. Ove

r th e years , alead

zin c sulfid e flotatio n mil l an daslag treatmen t plan t fo r lea dan dzin c recovery were added

. Copper productio n cease di n 1946 , whe n th e copper smelte r closed

. Lea dsmeltin g wa s discontinue di n 1972

. The smelte

r facility wa s demolishe din 1972

. Fro m197 4 throug h1981 , the Anacond a Compan y constructe dan doperate damil l know n a s th e Car r For k Operations , jus t

to th e east

o f th e IS& Ri n Pin e Canyon

. Thes e activitie s resulte di n th e creatio n o f larg e amount s o f

wast e material s containin g heav y metals , includin g leadan darsenic

. 9

. Waste s fro msmeltin g an drefinin g operation s includin g tailing s piles , slag , settlin g ponds , land-fille dmaterial , an dadditiona l smelter waste s are present

o n portion s o f

th e IS& RSite , whic h comprise s approximatel y 1,200 acres . 10

. Th e UtahMine dLan dReclamatio n Ac t o f May 1975 , require dreclamatio n fo r th e Car r For k Operations

. Respondent

performe dreclamatio n activitie s i n bot hareas , th e IS& Ran dth e Car r For k operations , unde r

th e oversigh t

o f th e Uta hDivisio n o f

Oil , Ga s an dMining

. 11

. I n 1990 , th e UtahDivisio n o f Oil , Ga s an dMinin g release dResponden t o f furthe r minin g reclamatio n liability at

th e IS& RSite

. 12

. I n accordanc e wit

hSectio n 10 5 o f

CERCLA , th e IS& RSit

e wa s liste do n th e National Priorit y List , a s define di n Section 10 5 o f CERCLA , a s amended , 4 2 U.S.C

. § 9605 , o n Jul y 27 , 2000

. 13

. O n o r abou t September

18,2001 , A Rentere dint o th e Administrativ e Orde r o n Consent

fo r Remedia l Investigation/Feasibility Study , EP A Docke t No

. CERCLA-08-2001-12 , ("RI/F S Order") , to performsamplin g activitie s a t th e Sit e to characteriz e th e level s an dextent o f contamination

. AR sample dth e Pin e Canyo n residential are aa s part o f th e RI/FS

. Th e RI/F S wor k i s currentl y underway a

t th e IS& RSite

. 14

. Th e Townshi p o f

Pin e Canyo n i s locate do n th e western edg e o f th e Site , comprise s 4approximatel y 2 square mile s an dinclude s approximatel y 10 0 residential properties

. Approximately

20 0 peopl e liv e i n th e impacte dare ao f Pin e Canyo n Township , includin g approximatel y 2 0 childre n under the ag e o f

14

. 15

. Heav y metal soi l contaminatio n i n Pin e Canyo n Townshi p i s aresul t o f historical floodin g an dth e fallou t

o f stac k emission s fro moperation s at th e IS& RSite

. Releas e o rThreatene d Releas e 16

. Operatio n o f

the Tooele Smelter

an dCar r Fork s facilities , includin g transpor t o f materials , resulte di n th e depositio n o f Waste Material containin g heav y metals , includin g lea dan darsenic , i n an da t area s nea r th e Site , i n level s tha

t ma y threate n human healt

hor th e environment

. 17

. Fro mDecembe r

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

i n connectio n wit

hth e RI/F S Order , performe dsoi l samplin g activitie s at residence s i n Pin e Canyo n t o defin e th e area ! exten t o f contamination

. Thes e samplin g effort s identifie delevate dconcentration s o f contaminant s o f concern , includin g leadan darsenic , i n th e yar dsoil s o f variou s residences

. A Rals o performe d samplin g o f

dus t i n several residences

. Th e result s o f thes e samplin g activitie s are include di n report s submitte dto EPA , entitle d"Dat aSummar

y Repor t - Wor k Are aNo

. 10 , date dJun e 2002 , Addendu mNo

. 1 t o DataSummar y Report - Wor k Are aNo

. 10 , date dSeptember 2002 , an dLincol n Residentia

l Sampling , date dJun e 10 , 2004 , al l prepare db y Anderso n Engineerin g Company , Inc. , an daccepte db y EPA o n Jun e 12 , 2002 , October 18 , 200 2 an dJun e 23 , 2004 , respectivel y (collectivel y referre dt o a s th e Samplin g Reports ; th e Addendu mNo

. 1 t o Dat aSummar y Report - Work Are aNo

. 1 0 (withou t

attachments ) an dth e Lincol n Residentia l Samplin g repor t are attache dt o thi s Orde r

collectivel y a s Appendi x 3. ) 18

. A s describe di n th e Samplin g Reports , soi l sampl e result s fro m2002-200 4 fro mPin e Canyo n showe delevate dlevel s o f leadrangin g fro m"non-detect " to approximatel y 188 0 mg/kg (188 0 part s per millio n (ppm) ) i n residential yards

. Arseni c wa s detecte di n level s o f up to 15 0 pp mhi residential soils

. Leadlevel s i n sample s o f househol ddus t

collecte di n Pin e Canyo n i n 2002- 4 range dfro m9 3 to 31 0 mg/kg

. Endangermen t 19

. The above-describe dhazardou s substance s an dpollutant s an dcontaminant s ar e containe di n th e residentia l soil s i n concentration s an dquantitie s that may pos e an imminen t

an dsubstantial endangerment

to th e publi c healt

han dth e environment

. Outline dbelo w are th e specifi c endangermen t

criteri afo r

th e majo r contaminant s o f

concer n foun do n th e Site : 20

. Several migratio n pathway s an dexposure route s exis t withi n th e Pin e Canyo n residentia l are a throug hwhic hhuman s may b e expose dt o toxi c concentration s o f th e contaminant s o f

concern . Th e principl e pathway s withi n thes e residential area s include : ingestio n o f contaminate dsurfac e soils , ingestio n an dinhalatio n o f airborn e soi l particle s an dcontaminate ddust , an dingestio n o f vegetable s grow n in contaminate dsoils

. 21

. Youn g childre n an dadult s ma y experienc e advers e healtheffect s whe n exposedto elevate d concentration s o f

leadan darseni c an dothe r metal s i n th e soil

. Th e primary rout e o f exposure i s vi a incidental ingestio n o f

th e contaminate dsoil

. Direc t ingestio n o f

contaminate dsoi l can resul t fro mactual consumptio n o f soi l o r throug hth e mouthin g o f

contaminate dobjects

. Childre n are th e mos t susceptibl e to exposure throug hthi s pathway

. Househol ddus t containin g variou s level s o f contaminant s can b e ingeste dan dinhale dthroug hdirec t contac t wit hindoo r dus t whic hi s contaminate dfro moutdoo r soi l and/o r

ingestio n o f

foo dcontaminate dwit

hindoo r dust

. Other route s o f exposure includ e inhalatio n o f wind-blow n soi l particle s an ddermal contac t wit hth e soil

. Ingestio n o f

vegetable s grow n i n contaminate dsoil s i s anothe r potential exposure route
. Vegetable s can activel y take u p contaminant s fro mth e soi l an dincorporat e them

. Vegetable s can become contaminate dthroug hcontaminate s adherin g t o root s an ddepositio n o f wind-blow n and/o r

rain

splashe dparticle s onto plan t surfaces

. 22

. Outline dbelo w ar e th e specifi c endangermen t criteri afo r

th e majo r contaminant s o f

concer n foun do n th e Site : Arseni c - Exces s exposure t o arseni c i s know n t o caus e avariety o f advers e healtheffect s i n humans

. Thes e effect s depen do n exposure leve l an dduration

. Arseni c i s aknow n human carcinogen

. Inhalatio n exposur e i s associate dwit hincrease dris k

o f lung , gastrointestinal , rena l o r bladde r cancer . Oral exposur e t o arseni c i s associate dwit hskin , liver , an dbladde r

cancer . A t ver y hig hdoses , oral exposur e t o arseni c elicit s nause aan dvomiting

. Lower dose s over

a chroni c tim e perio dmay elici t ski n abnormalities , suc ha s hyperkeratosis ; kidney , an dliver toxicity

.

_A t hig hdose s lea dexposure i s associate dwit hadvers e effect s o n reproductio n an d development , a s wel l inhibitio n o f hem e synthesis

. At

lower doses , impairmen t

o f th e nervou s syste mi n youn g childre n i s considere dt o b e o f greates t concern . Younger

childre n are more susceptibl e t o lea dexposure becaus e the y absor b leadfro mthei r

gastrointestinal tract s at

a greater rate than adult s do , thei r

neurological system s are stil l rapidl y developing , an dthe y hav e mor e direc t

contac t withsoi l an dindoo r

dus t than adult s do

. Thes e neurological effect s manifes t a s decrease dI.Q. , shortene dattentio n span , an ddecrease dhan dan dey e coordination

. EPA classifie s lea da s aB 2 carcinogen

. Studie s i n animal s sho w an increase dincidenc e o f kidne y tumor s i n associatio n withvery hig hlevel s o f leadexposure . 23

. I n Jun e 2003 , EP A complete daris k assessment

entitle d"Baselin e Human Healt hRis k Assessmen t

fo r th e Internationa l Smeltin g an dRefinin g Site Tooel e County , Uta h(Final) " USEPA , Regio n 8 , Jun e 200 3 ("EP A Ris k Assessment" ) fo r

th e Pin e Canyo n Residential Are abasedo n th e Samplin g Reports

. Healthbase dactio n level s were establishe db y EP A base do n th e EP A Ris k Assessment

. Responden t 24

. Responden t

i s Atlanti c Richfiel dCompany

. Atlanti c Richfiel dCompany i s aDelaware corporatio n registere di n th e Stat e o f Utaha s aqualified , activ e corporatio n i n goo dstanding , organize di n th e Stat

e o f Uta ho n Apri l 30 , 1985

. 25

. Responden t

i s th e curren t

owne r an dwa s th e "owner " and/o r "operator " at

th e IS& RSite at th e tim e o f

disposa l o f

hazardou s substance s o r pollutant s o r

contaminant s at

th e facility , a s define d b y sectio n 101(20 ) o f

CERCLA , 4 2 U.S.C

. § 9601(20) , an dwithi n th e meanin g o f section s 107(a)(l ) an d(2 ) o f CERCLA , 4 2 U.S.C

. § § 9607(a)(l ) an d(2)

.

### Respons e Action s

26

. There hav e bee n prio r CERCL A respons e action s at th e Site (th e RI/FS) , an dspecificall y fo r Pin e Canyo n Township , includin g th e samplin g effort s an dris k assessment

describe dabove

. I n addition , o n Jul y 16,2004 , EP A issue dan Actio n Memorandu mfo r residential soi l removal at th e Pin e Canyo n Townshi p Residentia l Are ao f th e Internationa l Smeltin g an dRefinin g Site

. Th e Actio n Memorandu mdetermine dthat approximatel y 2 0 residence s wil l b e require dt o hav e soi l remove dt o addres s th e meta l contaminatio n presen t i n th e yar dsoils

. 27

. EP A ha s incurre drespons e cost s i n bot hit s samplin g an doversigh t activitie s at

an di n connectio n withth e Site

.

V . CONCLUSION S O F LA W AN D DETERMINATION S 28

. Base do n th e Finding s o f Fac t se t forthabov e an dth e Administrativ e Recordsupportin g thi s Removal Action , EPA ha s determine dthat :

a . Th e Site i s a"facility " a s define db y sectio n 101(9 ) o f CERCLA , 4 2 U.S.C

. § 9601(9)

. b.Th e Waste Materia l foun dat th e Site , a s identifie di n th e Finding s o f Fac t above , includ e "hazardou s substance(s) " a s define db y sectio n 101(14 ) o f CERCLA , 4 2 U.S.C

. § 9601(14) , an d "pollutant s or

contaminants " a s define db y section 101(33 ) o f CERCLA , 4 2 U.S.C

. § 9601(33)

. Thes e includ e leadan darsenic

.
c . Responden t

i s a"person " a s define db y sectio n 101(21 ) o f CERCLA , 4 2 U.S.C

. § 9601(21)

. d

. Responden t

i s liabl e unde r

sectio n 107(a

) o f CERCLA , 4 2 U.S.C

. § 9607(a) , fo r performanc e o f

respons e action s an dfo r

respons e cost s incurre dan dt o b e incurre dat th e Site

. Responden t

wa s th e "owner " and/o r

"operator " o f

th e facilit y a

t th e tim e o f

disposal o f

hazardou s substance s at

th e facility , a s define db y sectio n 101(20 ) o f CERCLA , 4 2 U.S.C

. § 9601(20) , an d withi n th e meanin g o f

sectio n 107(a)(2 ) o f

CERCLA , 4 2 U.S.C

. § 9607(a)(2)

. Responden t als o acceptedhazardou s substance s fo r transpor t to th e facility , withi n th e meanin g o f section 107(a)(4 ) o f

CERCLA , 4 2 U.S.C

. § 9607(a)(4)

.
e . The condition s describe di n the Finding s o f Fact abov e constitute a

n actua l or threatene d "release " o f

ahazardou s substanc e fro mth e facilit y a s define db y sectio n 101(22 ) o f CERCLA , 4 2 U.S.C

. § 9601(22)

. f

. Th e condition s presen t at th e Sit e constitut e an imminen t an dsubstantial endangermen t t o publi c healtho r

welfar e o r

th e environmen t

withi n th e meanin g o f

sectio n 106(a

) o f CERCLA , 4 2 U.S.C

. § 9606(a)

. Thes e condition s include , bu t are no t limite dto : actual o r

potential exposure t o nearb y huma n populations , animals , o r th e foo dchai n fro mhazardou s substance s o r pollutant s o r

contaminants ; thi s facto r i s presen t at th e Site du e t o th e existenc e o f metals , includin g lea dan darsenic , i n th e soil s at th e Sit e an dth e proximity o f residentia l area s an dother area s to whic hpeopl e an danimal s hav e access ; an dth e hig hlevel s o f hazardou s substance s o r pollutant s o r

contaminant s i n soil s largel y at o r near th e surfac e that

may migrate , du e t o win d an dtrackin g o r

other transport o f soil s b y huma n activity

.

### g . Th e action s require db y thi s Orde r ar e necessary t o protec t

th e publi c healt

ho r welfar e o r th e environment , ar e i n th e publi c interest , ar e no t inconsisten t

wit hCERCL A an dth e NCP , an dwil l expedit e effectiv e remedia l actio n an dminimiz e litigation

. VI . ORDE R 29

. Base dupo n th e foregoin g Finding s o f Fact , Conclusion s o f

Law an dDeterminations , an dth e Administrativ e Recordfo r thi s Site , EP A hereb y order s that Responden t

compl y wit

hth e followin g provisions , including , bu t no t limite dto , al l attachment s (appendices ) t o thi s Order , al l document s incorporate db y referenc e int o thi s Order , an dal l schedule s an ddeadline s i n thi s Order , attache dt o thi s Order , o r

incorporate db y referenc e int o thi s Order , an dperfor mth e followin g actions : ip p n f Inten t t o Compl y 

### 30

. Responden t

shal l notif

y EP A i n writin g withi nte n (10 ) day s afte r th e effectiv e date o f

thi s Order o f Respondent' s irrevocabl e inten t t o compl y withthi s Order

. Failur e o f Responden t

t o provid e suc hnotificatio n withi n thi s tim e perio dshal l b e aviolatio n o f thi s Order

b y Respondent

. resignatio n o f

Contractor . Projec tCoordinator , an d On-Scen e Coordinato r 3 1

. a . Responden t

shal l performth e Removal Action s o r retai n acontractor(s ) t o perfor mth e Removal Actions

. Responden t shal l notif

y EP A o f Respondent' s qualification s o r th e name(s ) an d qualification(s ) o f

suc hcontractor(s ) withi n te n (10 ) busines s day s o f th e effectiv e date o f

thi s Order , Responden t

shal l als o notif

y EP A o f th e name(s ) an dqualification^ ) o f an y other contractors ) o r subcontractor(s ) retaine dt o perfor mth e Removal Action s unde r thi s Order

at leas t fiftee n (15 ) day s prio r t o commencemen t

o f suc hRemoval Actions

. EP A retain s th e right t o disapprov e o f

any , o r all , o f th e contractor s and/o r

subcontractor s retaine db y Respondent , o r o f Respondent' s choic e o f

itsel f t o d o th e Removal Actions

. I f EP A disapprove s o f

aselecte dcontracto r

o r Respondent , Respondent shal l retai n adifferen t

contracto r

o r notif y EP A that

i t wil l perfor mth e Removal Action s itsel f withi n fiv e (5 ) busines s day s followin g EPA' s disapprova l an dshal l notif y EP A o f that contractor' s nam e o r Respondent' s nam e an dqualification s withi n fiv e (5 ) busines s day s o f EPA' s disapproval

. b

. Withi n te n (10 ) day s afte r th e effectiv e dat e o f

thi s Order , Responden t

shall designate a Projec t Coordinato r

wh o shal l b e responsibl e fo r administratio n o f

al l th e Respondent' s action s require db y th e Order

. Responden t shal l submi t

th e designate dcoordinator' s name , address , telephon e number , an dqualification s t o EPA

. T o th e greates t extent possible , th e Projec t

> Coordinato r

shal l b e present

onsit e o r readil y availabl e durin g Sit e Work

. EP A retain s th e righ t t o disapprov e o f

an y Projec t

Coordinato r

name db y Respondent

. I f EP A disapprove s o f

aselecte d Projec t Coordinator , Responden t shal l retai n adifferen t

Projec t Coordinato r

an dshall notify EP A o f that person' s nam e an dqualification s withi n fiv e (5 ) busines s day s followin g EPA' s disapproval

. Receip t b y Respondent' s Projec t

Coordinato r

o f an y notic e o r

communicatio n fro mEP A relatin g t o thi s Orde r shal l constitut e receip t

b y Respondent

. 32

. EPA ha s designate dJoshu aKnight , Superfun dRemedia l Section , Regio n 8 , a s it s Projec t Coordinator

. Excep t

a s otherwis e provide di n thi s Order , Responden t shal l direc t

al l submission s require db y thi s Order

to :

### Joshu aKnight

Internationa l Smeltin g & Refinin g Remedial Projec t Manager Superfun dRemedia l Section , 8EPR-S R U S EPA , Regio n 8 99 9 18 t

h

### Street , Suit

e 30 0 Denver , C O 80202-246 6 Phone:(303)312-653 5 Fax:(303)312-687 7 Wor kt o B e Performe d 33

. Responden t

shal l perform , a

t aminimum , al l activitie s containe di n th e Residential Soil Remova l Wor

k Plan , a s approve db y EP A pursuan t t o thi s Order

. Th e Residentia l Soi l Removal Work Plan shal l describ e Work fo r th e removal o f

soil s contaminate dwit

hleadan darseni c at

th e Site an dpreparatio n an dsubmittal o f afinal report

o n th e remova l activities

. Th e require dWor k shal l includ e categorizatio n an dinventory o f soil s a s necessar

y fo r th e residence s withi n th e Pin e Canyo n residentia l area ; excavatio n an ddisposal o f th e contaminate dsoi l a

t approve dtreatment

o r disposal facility(s) ; an drestoratio n o f th e excavate darea s withclean soi l an dnativ e seedto preven t erosion

. Th e Wor

k wil l involv e excavatio n o f soil s containin g elevate dlevel s o f leadan darseni c fro mresidential propertie s at th e Site

. Fo r

th e identifie dresidentia l properties , th e to p 1 8 inche s o f existin g soi l wil l b e excavate dan dtransporte doff-sit e fo r disposal

. Permeabl e geotextil e filte r fabri c wil l b e place do n th e sub-grad e an dcovere dwit hclean fill

. Surfac e feature s wil l b e replace do r returne da s nearl y a s possibl e to "a s was " condition

. T o the extent practicable , the Wor

k shall attai n applicabl e o r

relevan t an dappropriate requirement s (ARARs ) unde r federa l environmental , stat e environmental , o r

facilit y sitin g laws , a s identifie di n th e Work Plan approve dunde r

thi s Order

. Responden t

shal l perfor man dcomplet e al l activitie s i n th e Work Pla n i n accordanc e wit

hth e schedul e include dtherein

. WorkPla n

a . Withi n thirty (30 ) day s afte r th e effectiv e date o f

thi s Order , th e Responden t shal l submi t t o EP A fo r

approval adraf

t Residentia l Soi l Removal Work Plan ("Wor

k Plan" ) fo r

performin g th e Removal Action s se t

forthabove

. Th e draf

t Wor k Pla n shal l provid e adescriptio n of , an dan expeditiou s schedul e for , th e actio n require db y thi s Order , includin g identificatio n o f al l ARARs , subjec t

to EPA approval

. b

. EP A may approve , disapprove , require revision s to , o r modif y th e draf t Wor k Plan

. I f EP A require s revisions , Responden t shal l submi t

arevise ddraf

t Wor k Pla n withi n te n (10 ) day s o f receip t o f EPA' s notificatio n o f

th e require drevisions

. Responden t shal l implemen t

th e Work Plan a s finally approve di n writin g b y EPA i n accordanc e wit hth e schedul e approve db y EPA

. Onc e approved , o r

approve dwit

hmodifications , th e Wor

k Plan , th e schedule , an dan y subsequen t

modification s shal l b e full y enforceabl e unde r thi s Order

. Responden t

shal l notif

y EP A at leas t 4 8 hour s prio r

t o performin g an y on-sit e Work pursuan t t o th e EP A approve dWork Plan

. Responden t

shal l no t commenc e o r

undertak e an y Remova l Action s at th e Site withou t prio r EPA approval

.Additiona l Plan s an d Reportin g

an d Safet y Pla n (HASP^ t

a . Withi n thirty (30 ) day s afte r th e effectiv e dat e o f

thi s Order , th e Responden t shal l submi t fo r EP A revie w an dcommen t aplan tha t

ensure s th e protectio n o f th e publi c healt

han dsafet

y durin g performanc e o f

on-site Work

unde r thi s Order

. Thi s plan shal l b e prepare di n accordanc e wit h EPA' s StandardOperatin g Safety Guide , (Novembe r 1984 , update dJul y 1988)

. I n addition , th e plan shal l compl y wit hal l curren t

applicabl e Occupational Safety an dHealt hAdministratio n (OSHA ) regulations ; Hazardou s Waste Operation s an dEmergenc y Response ; foun dat 2 9 C.F.R

. Par t 1910

. Responden t

shal l incorporat e al l change s t o th e plan recommende db y EPA , an d implemen t

th e pla n durin g th e pendenc y o f th e Removal Actions

. Qualit y Assuranc e an d Samplin g (OAPP/OASP ) b

. Withi n thirty (30 ) day s afte r th e effectiv e date o f

thi s Order , th e Responden t shal l submi t fo r EP A revie w an dcommen t adraf t Qualit y Assuranc e Projec t Pla n (QAPP ) o r

Qualit y Assuranc e Samplin g Pla n (QASP)

. I n developin g th e QAPjP/QASP , th e Responden t shal l conside r an dutiliz e th e followin g EP A guidanc e documents : "Guideline s an dSpecification s fo r Preparin g Quality Assuranc e Projec t Plan (QAMS-004/80) " an d"Emergenc y Respons e Branc h Regio n VII I Quality Assuranc e Projec t Plan (ERB Regio n VII I QAPjP). " Th e sixtee n element s liste di n QAMS-005/8 0 shal l b e addressed

. Responden t shal l incorporat e al l change s t o th e QAPjP/QAS P recommende db y EPA

.
c . Al l samplin g an danalyse s performe dpursuan t t o thi s Orde r

shal l conformt o EP A direction , approval , an dguidanc e regardin g sampling , quality assurance/quality contro l (QA/QC) , dat avalidation , an dchai n o f custod y procedures

. Responden t shal l ensure that

th e laborator

y use dt o performth e analyse s participate s i n aQA/Q C programthat complie s wit

hth e appropriate EP A guidance

. Responden t shal l adher e t o th e followin g document s a s appropriate a s guidanc e fo r QA/Q C an dsampling : "Qualit y Assurance/Quality Contro l Guidanc e fo r Removal Activities : Samplin g QA/Q C Pla n an dDat aValidatio n Procedures, " OSWERDirectiv e Numbe r 9360.4-0 1 ; "Environmenta l Respons e Tea mStandardOperatin g Procedures, " OSWERDirectiv e Number s 9360.4-0 2 throug h9360.4-08 ; an dth e Representativ e Samplin g Guidanc e fo r soil , air , ecology , waste , an dwater

a s thi s informatio n become s finalize dan davailable

. d

. Upo n reques t

b y EPA , Responden t

shal l hav e suc halaboratory analyz e sample s submitte db y EP A fo r

quality-assuranc e monitoring

. Responden t shal l provid e t o EP A th e qualit y assurance/quality contro l procedure s followe db y al l samplin g team s an dlaboratorie s performin g dat acollectio n and/o r analysis

.
e . Upo n reques t

b y EPA , Responden t

shal l allo w EP A o r

it s authorize drepresentative s t o tak e spli t and/o r duplicat e sample s o f

an y sample s collecte db y Responden t whil e performin g action s unde r

thi s Order

. Responden t

shal l notif

y EP A no t

les s tha n fiv e (5 ) day s i n advanc e o f an y sampl e collectio n activity

. EP A shal l hav e th e righ t t o take an y additiona l sample s that i t deem s necessary .



### 1 0Reportin g

f

. Responden t

shall submi t

awritte n progres s repor

t to EPA concernin g action s undertake n pursuan t t o thi s Orde r

every sevent

h(7th ) day afte r

th e dat e o f

receip t o f EPA' s approval o f

th e Work Pla n unti l th e cessatio n o f th e Removal Action s require dunde r thi s Order , unles s otherwis e directe di n writin g b y th e EP A Projec t Coordinator

. Thes e report s shal l describ e al l significan t development s durin g th e precedin g period , includin g th e action s performe dan dan y problem s encountered , analytical dat areceive ddurin g th e reportin g period , an dth e development s anticipate ddurin g th e nex t reportin g period , includin g aschedul e o f Work t o b e performed , anticipatedproblems , an dplanne dresolution s o f pas t o r anticipate dproblems

. g . An y Responden t

an dSuccesso r

i n titl e shall , at

leas t 3 0 day s prio r

t o th e conveyanc e o f any interes t

i n rea l propert y a t th e Site , giv e writte n notic e o f thi s Order

to th e transfere e an d writte n notic e t o EP A o f

th e propose dconveyance , includin g th e nam e an daddres s o f th e transferee

. Th e party conveyin g suc han interes t shal l requir e that

th e transfere e compl y wit h Sectio n VI. , Paragraph s 3 5 an d3 6 o f thi s Order

(Acces s to Property an dInformation)

. Fina l Repor t h

. Withi n twenty-on e (21 ) day s afte r completio n o f

al l Remova l Action s require dunder thi s Order , th e Responden t

shal l submi t

fo r EP A revie w an dapproval afina l report summarizin g th e action s take n t o compl y withthi s Order

. Th e fina l report shal l conform , at

aminimum , wit

hth e requirement s set

forthi n sectio n 300.16 5 o f the NC P entitle d"OS C Reports"

. The fina l repor t shal l includ e agoo dfaithestimat e o f total cost s o r

statement o f actua l cost s incurre di n complyin g wit

hth e Order , alistin g o f

quantitie s an dtype s o f

material s removed , adiscussio n o f removal an ddisposal option s considere dfo r thos e materials , alistin g o f th e ultimat e destination s o f thos e materials , apresentatio n o f th e analytical result s o f

al l samplin g an danalyse s performed , an daccompanyin g appendice s containin g al l relevan t documentatio n generate ddurin g th e Removal Action s (e.g.

. manifests , invoices , bills , contracts , an dpermits)

. Th e final report shal l als o includ e th e followin g certificatio n signe db y aperso n wh o supervise do r directe dth e preparatio n o f

that report : "Under penalty o f

law , I certif

y that t o th e bes t

o f my knowledge , afte r

appropriate inquirie s o f

al l relevan t

person s involve di n th e preparatio n o f th e report , th e informatio n submitte di s true , accurate , an dcomplete

. I amaware that there are significan t

penaltie s fo r

submittin g fals e information , includin g th e possibility o f fin e an dimprisonment

fo r knowin g violations. " Acces s t o Property an d Informatio n 35

. Responden t

shal l provid e and/o r

obtai n acces s t o th e Site an doff-sit e area s t o whic hacces s i s necessar y t o implemen t

thi s Order , an dprovid e acces s t o al l record s an ddocumentatio n relate dt o th e condition s at

th e Site an dth e actio n conducte dpursuan t t o thi s Order

. Suc hacces s shal l b e provide d t o EP A employees , contractors , agents , consultants , designees , representatives , an dStat e o f Uta h representatives

. Thes e individual s shal l b e permitte dt o mov e freel y at th e Sit e an dappropriate off

sit e area s i n orde r

t o conduc t

action s whic hEP A determine s t o b e necessary . Responden t shal l submi t to EPA , upo n receipt , th e result s o f al l samplin g o r

test s an dal l othe

r dat agenerate db y Responden t

o r it s contractor(s) , o r

o n th e Respondent' s behal f durin g implementatio n o f thi s Order

. 1 136

. Where actio n unde r thi s Orde r

i s t o b e performe di n area s owne db y o r i n possessio n o f someon e othe r

than Respondent , Responden t shal l us e it s bes t

effort s t o obtai n al l necessar y acces s agreement s withi n thirty (30 ) day s afte r th e effectiv e date o f

thi s Order , o r

a s otherwis e specifie di n writin g b y th e EP A Projec t Coordinator

. Responden t shal l immediatel y notif

y EP A if, afte r

usin g it s bes t efforts , Responden t

i s unabl e t o obtai n suc hagreements
. Responden t shal l describ e i n writin g it s effort s t o obtai n access . EP A may the n assis t Responden t

i n gainin g access , t o th e extent necessar y t o effectuat e th e Remova l Action s describe dherein , usin g suc hmean s a s EP A deem s appropriate

. EP A reserve s th e righ t t o seek reimbursemen t

fro mResponden t

fo r al l cost s an d attorney' s fee s incurre db y th e Unite dState s i n obtainin g acces s fo r Respondent

. Recor dRetention

. Documentation

. Availabilit y o f Informatio n 37

. Responden t

shal l preserv e al l document s an dinformatio n relatin g t o Wor k performe dunde r thi s Order , o r

relatin g t o th e hazardou s substance s foun don , o r release dfrom , th e Site , fo r te n year s followin g completio n o f

th e Remova l Action s require db y thi s Order

. A t th e en do f

thi s te n year perio dan dthirty (30 ) day s befor e an y documen t o r informatio n i s destroyed , Responden t shall notif

y EP A that suc hdocument s an dinformatio n ar e availabl e t o EP A fo r inspection , an dupo n request , shal l provid e th e original s o r copie s o f suc hdocument s an dinformatio n t o EPA

. I n addition , Responden t

shal l provid e document s an dinformatio n retaine dunde r thi s Sectio n at

an y tim e befor e expiratio n o f

th e ten-year

perio dat th e writte n reques t

o f EPA

. 38

. Responden t

may asser

t abusines s confidentiality clai mpursuan t t o 4 0 C.F.R

. § 2.203(b ) wit h respec t t o part o r al l o f an y informatio n submittedt o EP A pursuan t t o thi s Order , provide dsuc h clai mi s allowe db y sectio n 104(e)(7 ) o f CERCLA , 4 2 U.S.C

. § 9604(e)(7)

. Analytical an dothe r dat aspecifie di n sectio n 104(e)(7)(F) o f CERCL A shal l no t

b e claime da s confidentia l b y th e Respondent

. EP A shal l onl y disclos e informatio n covere db y abusines s confidentiality clai mt o th e exten t permitte dby , an db y mean s o f th e procedure s se t

forthat , 4 0 C.F.R

. Part

2 , Subpar

t B

. I f n o suc hclai maccompanie s th e informatio n whe n i t i s receive db y EPA , EP A may make i t availabl e t o the publi c withou t

furthe r notic e to Respondent

. 39

. Responden t

shal l maintai n arunnin g lo g o f privilege ddocument s o n adocument-by

documen t basis , containin g th e date , author(s) , addressee(s) , subject , th e privileg e o r ground s claime d(e.g. , attorne y wor k product , attorney-client) , an dth e factua l basi s fo r assertio n o f

th e privilege

. Responden t

shal l keep th e "privileg e log " o n fil e an davailabl e fo r inspection

. EP A may at an y tim e challeng e claim s o f privileg e throug hnegotiation s o r otherwis e a s provide db y law o r th e Federal Rule s o f

Civi l Procedure

. off-Sit e Shipment s 40

. Al l hazardou s substance s o r pollutant s o r

contaminant s remove doffsit e pursuan t t o thi s Order fo r treatment , storage , o r

disposal shal l b e treated , stored , o r dispose do f

at afacility i n compliance , a s determine db y EPA , with4 2 U.S.C. § 962 1 (d)(3 ) an dth e EP A "Revise dProcedure s fo r Implementin g Off-Sit e Respons e Actions, " OSWERDirectiv e Numbe r 9834. 1 1 , Novembe r

13 , 1987

. Regiona l Office s wil l provid e informatio n o n th e acceptabilit y o f afacilit y unde r

sectio n 121(d)(3 ) o f

CERCL A an dth e abov e directive

. Unles s impracticable , prio r notificatio n o f

out-of

1 2

### state waste shipment s shoul db e give n t o th e EP A Projec t Coordinato r

consisten t wit hOSWER Directiv e 9330.2-07

. Complianc e Wit h Othe rLaw s 41

. Responden t

shal l perfor mal l action s require dpursuan t t o thi s Orde r

i n accordanc e wit

h al l applicabl e local , state , an dfedera l law s an dregulation s excep t a s provide di n CERCL A sectio n 121(e) an d4 0 C.F.R

. sectio n 300.415(i)

. I n accordanc e with4 0 C.F.R

. § 300.415(i) , al l on-sit e action s require dpursuan t

t o thi s Orde r

shall , t o th e exten t

practicable , a s determine db y EP A considerin g th e exigencie s o f th e situation , attai n applicabl e o r relevan t an dappropriat e requirement s (ARARs ) unde r

federa l environmental , state environmental , o r facilit y sitin g laws , (se e "Th e Superfun dRemoval Procedure s fo r Consideratio n o f

ARAR s Durin g Remova l Actions, " OSWER Directiv e No

. 9360.3-02 , Augus t 1991)

. Emergenc y Respons e an d Notificatio n o f Release s 42

. Responden t

shal l notif

y EP A at leas t 4 8 hour s prio r

t o performin g an y on-site Wor k pursuan t t o th e Wor

k Plan

. Responden t

shal l no t commenc e o r

undertak e an y Removal Action s at th e Site withou t

prio r EP A approval an dexcep t i n conformanc e wit

hth e term s o f

thi s Order

. 43

. I f an y incident , o r

chang e i n Site conditions , durin g th e action s conducte dpursuan t t o thi s Orde r cause s o r threaten s t o caus e an additiona l releas e o f hazardou s substance s fro mth e Sit e o r an endangermen t

t o th e publi c healtho r

welfar e o r

th e environment , Responden t shal l immediatel y take al l appropriate action

. Responden t shal l take thes e action s i n accordanc e wit hal l applicabl e provision s o f

thi s Order , including , bu t no t limite dt o th e Healthan dSafety Plan , i n orde r t o prevent , abate o r minimiz e suc hreleas e o r endangermen t

cause do r threatene db y th e release

. Responden t shall als o immediatel y notif y th e EPA Projec t

Coordinato r

or , i n th e even t

o f hi s o r her unavailability , shal l notif

y th e Nationa l Respons e Cente r at (800 ) 424-880 2 o f

th e inciden t

o r Site conditions

. I f

Responden t

fail s t o tak e action , the n EP A may respon dt o th e releas e o r endangermen t an dreserv e the right

to pursu e cost

recovery . 44

. I n addition , i n th e event o f an y releas e o f

ahazardou s substance , Responden t shal l immediatel y notif

y EPA' s EPA Projec t

Coordinator

a t (303 ) 312-684 8 an dth e National Respons e Center at (800 ) 424-8802

. Responden t shal l submi t

awritte n repor

t t o EP A withi n seve n (7 ) day s afte r eac hrelease , settin g fort hth e event s that occurre dan dth e measure s take n o r t o b e take n t o mitigate any releas e or

endangermen t

cause dor

threatene db y th e releas e an dto prevent th e reoccurrenc e o f

suc harelease

. Thi s reportin g requiremen t i s i n additio n to , no t

i n lie u of , reportin g unde r CERCL A sectio n 103(c ) an dsectio n 30 4 o f th e Emergenc y Plannin g an dCommunity Right

To-Kno w Act

of 1986,4 2 U.S.C

. § § 11001 , e t seg . VII . AUTHORIT Y O F TH E EP A ON-SCEN E COORDINATO R 45

. Th e EP A Projec t

Coordinato r

shal l b e responsibl e fo r

overseein g th e prope r

an dcomplet e implementatio no f

thi s Order

. Th e Projec t

Coordinato r

shal l hav e th e authorit y veste di n an OS C b y th e NCP , 4 0 C.F.R. § 300.120 , includin g th e authority t o halt , conduct , o r direc t an y actio n require d b y thi s Order , o r

t o direc t an y othe r remova l actio n undertake n b y EP A o r Responden t

at th e Site

.
1 3

### Absenc e o f

th e EP A Projec t

Coordinato r

fro mth e Site shal l no t

b e caus e fo r

stoppag e o f

Wor k unles s specificall y directe db y th e EPA Projec t Coordinator

. 46

. EP A an dResponden t shal l hav e th e righ t

t o chang e thei r

respective , designate dProjec t Coordinators

. EP A shal l notif y Respondent , an dResponden t shal l notif y EP A fiv e (5 ) day s befor e suc hachang e i s made

. Notificatio nmay initiall y b e mad e orally , bu t shal l b e followe dpromptl y b y writte n notice

. VIII . ENFORCEMENT ; PENALTIE S FO RNONCOMPLIANCE 47

. Violatio n o f

an y provisio n o f

thi s Orde r

may subjec t

Responden t

t o civi l penaltie s o f

u p t o thirty-tw o thousan dfiv e hundre ddollar s ($32,500 ) per violatio n per

day , a s provide di n sectio n 106(b)(l ) o f

CERCLA , 4 2 U.S.C

. § 9606(b)(l)

. Responden t may als o b e subjec t

t o punitiv e damage s i n an amoun t

u p t o thre e time s th e amoun t o f an y cos t incurre db y th e Unite dState s a s a resul t o f suc hviolation , a s provide di n sectio n 107(c)(3 ) o f CERCLA , 4 2 U.S.C

. § 9607(c)(3)

. Shoul dRespondent

violate thi s Order

o r any portio n hereof

, EPA ma y carr y ou t th e require daction s unilaterally , pursuan t

t o sectio n 10 4 o f

CERCLA , 4 2 U.S.C

. § 9604 , and/o r may see k judicia l enforcemen t

o f thi s Orde r

pursuan t t o sectio n 10 6 o f

CERCLA , 4 2 U.S.C

. § 9606

. IX . RESERVATIO N O F RIGHT S 48

. Excep t

a s specificall y provide di n thi s Order , nothin g herei n shal l limi t th e power

an d authorit y o f EPA or the Unite dState s to take , direct , or order al l action s necessar

y to protect

publi c healtho r welfar e o r

th e environmen t

o r t o prevent , abate , o r

minimiz e an actual o r

threatene dreleas e o f hazardou s substance s o r

pollutant s o r

contaminants , o r

hazardou s o r

soli dwast

e on , at , o r

fro mth e Site

. Further , nothin g herei n shal l preven t EP A fro mseekin g legal o r equitabl e relie f

t o enforc e th e term s o f thi s Order , fro mtakin g othe r legal o r equitabl e actio n a s i t

deem s appropriate an dnecessary , o r fro mrequirin g Responden t i n th e futur e t o perfor madditiona l activitie s pursuan t t o CERCL A o r an y othe r applicabl e law

. EP A reserve s th e righ t t o brin g an actio n agains t Responden t

unde r sectio n 10 7 o f CERCLA , 4 2 U.S.C

. § 9607 , fo r recover y o f any Respons e Cost s incurre db y th e Unite d State s relate dto thi s Order o r th e Site an dno t

reimburse db y Respondent

. X . OTHE RCLAIM S 49

. B y issuanc e o f

thi s Order , th e Unite dState s an dEP A assume n o liabilit y fo r injurie s o r damage s to person s o r

propert y resultin g fro man y act s o r omission s o f

Respondent

. Th e Unite d State s o r EP A shal l no t

b e deeme daparty t o an y contrac t entere dint o b y th e Responden t o r it s directors , officers , employees , agents , successors , representatives , assigns , contractors , o r consultant s i ncarryin g ou t

action s pursuan t

t o thi s Order

. 50

. Thi s Order

doe s no t constitute apre-authorizatio n o f fund s under

section 1 1 1 (a)(2 ) o f CERCLA , 4 2 U.S.C

. § 96 1 l(a)(2)

. 5 1

. Nothin g i n thi s Orde r shal l constitut e asatisfactio n o f o r releas e fro man y clai mo r caus e o f actio n agains t

Responden t

o r an y perso n no t

aparty t o thi s Order , fo r an y liabilit y suc hperso n may hav e unde r

CERCLA , othe r

statutes , o r

th e commo n law , includin g bu t no t limite dt o an y claim s


### 1 4

### o f

th e Unite dState s fo r

costs , damage s an dinteres t unde r sectio n 106(a

) an d107(a

) o f CERCLA , 4 2 U.S.C

. § § 9606(a ) an d9607(a)

. XI . MODIFICATION S 52

. Modification s t o an y pla n o r schedul e unde r

thi s Orde r

may b e mad e i nwritin g b y th e EPA Projec t

Coordinato r

o r a t th e EPA Projec t

Coordinator' s ora

l direction

. I f

th e EPA Projec t Coordinato r

make s a noral modification , i t wil l b e memorialize di nwritin g withi n seve n (7 ) days ; provided , however , that

th e effectiv e dat e o f

th e modificatio nshal l b e th e dat e o f th e EP A Projec t Coordinator' s oral direction

. Th e res t o f th e Order , o r

an y other portio n o f

th e Orde r may onl y b e modifie di n writin g b y signature o f th e undersigne dEPA progra mdirector

. 53

. I f Responden t

seek s permissio n t o deviat e fro man y approve dpla n o r schedul e o r

th e Statemen t o f Work , Respondent' s Projec t Coordinato r

shal l submi t

awritte n reques t

t o EP A fo r approval outlinin g th e propose dmodificatio n an dit s basis

. 54

. N o informa l advice , guidance , suggestion , o r commen t b y EP A regardin g reports , plans , specifications , schedules , o r an y othe r writin g submitte db y th e Responden t shal l reliev e Responden t o f it s obligation s t o obtai n suc hforma l approval a s may b e require db y thi s Orde r an dt o compl y wit

h al l requirement s o f

thi s Orde r

unles s i t i s formall y modified

. N o failur e o r delay b y EP A t o acknowledge , o r

mak e adecisio n wit

hregar dto , an y reques t

b y Responden t

t o deviat e fro man y approve dplan o r

schedul e o r

fro mth e requirement s an dprocedure s se t fort hi n th e Work

Plan shal l reliev e Responden t

o f it s obligation s t o compl y withal l requirement s o f thi s Orde r

unles s i t i s formall y modifie di n accordanc e wit hth e procedure s se t

forthherein

. XII . NOTIC E O F COMPLETIO N 55

. Whe n EP A determines , afte r EPA' s revie w o f

th e Fina l Report , that

al l Wor k ha s bee n full y performe di n accordanc e withthi s Order , wit hth e exceptio n o f

an y continuin g obligation s require db y thi s Order , EPA wil l provid e notic e to Respondent

. I f EPA determine s tha

t any Removal Action s hav e no t

bee n complete di n accordanc e withthi s Order , EP A wil l notif y Respondent , provid e alis t

o f th e deficiencies , an drequir e that Responden t

modif y th e Work

Pla n t o correc t

suc h deficiencies

. Th e Responden t shal l implemen t

th e modifie dan dapprove dWork Pla n an dshal l submi t amodifie dFina l Report

i n accordanc e wit

hth e EP A notice

. Failur e b y Responden t t o implemen t

th e approve dmodifie dWor k Pla n shal l b e aviolatio n o f thi s Order

. XIII . ACCES S T O ADMINISTRATIV E RECORD 56

. Th e Administrativ e Recor dsupportin g thes e Remova l Action s i s availabl e fo r revie w durin g norma l busines s hour s at th e EP A Regio n 8 Superfun dRecord s Cente r o n th e 5 t

h

### floor , at 99 9 18 t h

### Street , in Denver , CO

. XIV . OPPORTUNIT Y T O CONFE R 57

. Withi n fiv e (5 ) day s afte r th e effectiv e dat e o f

thi s Order , Responden t

may reques t

a conferenc e withEPA

. An y suc hconferenc e shal l b e hel dwithi n seve n (7 ) day s afte r th e effectiv e

1 5dat e unles s extende db y agreemen t o f EP A an dRespondent

. A t an y conferenc e hel dpursuan t t o th e request , Responden t

may appea

r i n perso n o r

b e represente db y an attorne y o r other representative

. 58

. I f aconferenc e i s held , Responden t may presen t

an y information , argument s o r comment s regardin g thi s Order

. Regardles s o f whethe r aconferenc e i s held , Responden t may submi t

an y information , argument s o r comment s i n writin g t o EP A withi n thre e (3 ) day s followin g th e conference , o r

withi n te n (10 ) day s followin g issuanc e o f th e Orde r i f n o conferenc e i s requested

. Thi s conferenc e i s no t

an evidentiary hearing , doe s no t constitut e aproceedin g t o challeng e thi s Order , an ddoe s no t

giv e Responden t

arigh t t o see k revie w o f

thi s Order

. Request s fo r

aconference , o r an y writte n submitta l unde r thi s Paragraph , shal l b e directe dt o Jame s Stearns , Enforcemen t Attorney , U.S

. EPA (8ENF-L) , 99 9 18 t hStreet , Suit e 300 , Denver , C O 80202-2466 , telephon e (303 ) 312-6912

. XV . INSURANC E 59

. At leas t seven (7 ) day s prio r

to commencin g any on-site Wor k under thi s Order , Responden t

shal l secure , an dshal l maintai n fo r th e duratio n o f

thi s Order , comprehensiv e general liabilit y insuranc e an dautomobil e insuranc e withlimit s o f tw o millio n dollars , combine dsingl e limit

. Withi n th e same tim e period , Responden t shal l provid e EP A withcertificate s o f suc h insuranc e an dacopy o f

eac hinsuranc e policy

. I f Responden t

demonstrate s b y evidenc e satisfactory t o EP A that

an y contracto r

o r subcontracto r

maintain s insuranc e equivalen t t o that describe dabove , o r insuranc e coverin g th e sam e risk s bu t i n alesser

amount , the n Responden t nee dprovid e onl y that portio n o f th e insuranc e describe dabov e whic hi s no t maintaine db y suc hcontracto r o r subcontractor

. XVI . ADDITIONA L REMOVA L ACTION S 60

. I f EP A determine s that

additiona l remova l action s no t include di n an approve dplan are necessary to protec t

publi c healt

ho r welfare o r

th e environment , EPA wil l notif y Respondent

o f tha t determination

. Unles s otherwis e state db y EPA , withi n thirty (30 ) day s o f receip t o f notic e fro m EP A that additiona l removal action s are necessar y t o protec t

publi c healtho r

welfar e o r

th e environment , Responden t shal l submi t

fo r approval b y EP A aWor

k Plan fo r th e additional removal actions

. Th e draf

t Wor k Plan shal l provid e adescriptio n of , an dan expeditiou s schedul e for , th e action require db y EP A a s additiona l remova l actions

. EP A may approve , disapprove , requir e revision s to , o r

modif y th e draf t Work Plan

. I f EP A require s revisions , Responden t shal l submi t

a revise ddraf

t Work Pla n withi n (20 ) day s o f

receip t o f EPA' s notificatio n o f

th e require drevisions

. Responden t

shal l implemen t

th e Work Plan a s finall y approve di n writin g b y EP A i n accordanc e withth e provision s an dschedul e approve db y EPA

. Onc e approved , o r approve dwit

hmodifications , th e Work Plan , th e schedule , an dan y subsequen t modification s shal l b e full y enforceabl e under thi s Order

. Responden t

shal l notif

y EP A at leas t 4 8 hour s prio r

t o performin g an y on-site wor k pursuan t t o th e EP A approve dWor k Plan

. Responden t

shal l no t commenc e o r

undertak e an y removal action s at th e Sit e withou t

prio r EP A approval

. Thi s Sectio n doe s no t alter o r diminis hth e EP A Projec t Coordinator' s authority t o mak e oral modification s t o an y pla n o r schedul e pursuan t

t o Sectio n XI

. XVII . SEVERABILIT Y 61

. I f acourt issue s an orde r

that invalidate s an y provisio n o f thi s Order

o r find s that Responden t

ha s sufficien t

caus e no t

t o compl y wit hon e o r

mor e provision s o f

thi s Order , 1 6Responden t shal l remai n boun dt o compl y wit hal l provision s o f

thi s Order

no t invalidate do r determine dt o b e subjec t

t o asufficien t

caus e defens e b y th e court' s order

.
XVIII . EFFECTIVE DAT E 62

. Thi s Orde

r shal l b e effectiv e fiv e (5 ) day s afte r th e Order

i s signe db y EPA

. TT T S S O ORDERED : 

# X >

_-7 - 7 -7 Date : Dougla s kkie , Director Preparedness , Assessment , andEmergenc y Respons e Progra m Offic e o f Ecosystem s Protectio n an dRemediatio n U.S

. Environmenta l Protectio n Agency , Regio n 8 EFFECTIV EDATE : Z

.

1 7

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wrmour meat wumfNpeauasioH,I n th e Matte rof : Atlanti cRichfiel d Company ; Internationa l Smeltin g an d Refinin g Site

Docke tNo . CERCLA Th e undersigne dhereb y certifie s that th e original an don e cop y o f th e attache d UNILATERA LADMINISTRATIV EORDE RFO RREMOVALRESPONS EACTIVITIE S wa s hand-carrie dto th e Regional Hearin g Clerk , EPA Regio n 8 , 99 9 18t hStreet , Denver , Colorado , an dthat atru e cop y o f

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. Curley , Jr

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. Bo x 874 9 Denver , C O 80201-874 9

Date [pij[nan dprin t name below ]

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


### Ref : 8EPR-S R
ENFORCEMEN T ACTIO N MEMORANDUM
SUBJECT :

FROM : THROUGH :

TO : 

### Reques t fo r Time-critica l Remova l Actio n a t th e Pin e

Canyo n Townshi p Residentia l Are a o f th e Internationa l Smeltin g an d Refinin g Site , Tooel e County , Uta h Joshu a Knight , RP M Dal e Vodehnal , Directo r Superfun d Remedia l Program Steve n D . Hawthorn , Supervisor ' Emergenc yRespons e Team Dou g Skie , Direc t Preparedness , Asses s 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 yo 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 an d documen t approva l fo r th e propose d Remova l Actio n describe d herei n fo r portion s o f residentia l neighborhood s a t th e Internationa l Smeltin g an d Refinin g Superfun d 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 containin g elevate d level s o f lea d an d 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 an d transporte d Pag e 1 o f 1 1

f Printed on Recycled

Paper

## A ,

off-sit e fo r disposal
. Permeabl e geotextil e filte r fabri c wil l b e place d o n th e sub-grad e and covere d wit h clea n fill
. Surfac e feature s wil l b e replace d o r returne d a s nearl ya s possibl e t o "a s was " condition
. Condition s existin g a t th e Sit e presen t a n endangermen t t o huma n healt h an d th e environmen t an d mee t th e criteri a fo r initiating a Remova l Actio n unde r 4 0 C.F.R
. Sectio n 300.41 5 (b ) (2 ) o f th e Nationa l Contingenc yPla n (NCP )
. Th e action s discusse d i n thi s memorandumar e anticipate d t o requir e les s tha n 1 2 month s t o complete
. Base d o n th e natur e o f th e Sit e condition s and response , ther e ar e n o nationall ysignifican t o r precedent-settin g issue s associate d wit h thi s Remova l Action
. II . SIT E CONDITION S AN D BACKGROUND
A . si-be Descriptio n 1 . Remova l Sit e Evaluatio n 

### Th e IS& R Sit e wa s place d o n th e Nationa l Prioritie s Lis t (NPL ) o n Jul y27 , 2000
. Th e IS& R Sit e consist s o f land s impacte d b

yhistori c smeltin

g an d milling activitie s fromth e IS& R facility
. On e Operabl e Uni t (OU 1 ) currentl yencompasse s th e entir e site
. ARemedia l Investigation/Feasibilit yStud y(RI/FS ) i s currentl yunderwa ya t th e IS& R Site
. Th e RI/F S i s bein g performe d b

ya potentiall yresponsibl e part y(PRP) , Atlanti c Richfiel d Compan y(AR) , unde r th e Administrativ e Orde r o n Consen t fo r Remedia l Investigation/Feasibilit yStudy , EP ADocke t No . CERCLA

08-2001-1 2 (RI/F S Order)
. Th e investigatio n o f th e Pin e Canyo n Townshi p wa s complete d i n Jun e 2004
. Th e investigatio n found tha t approximatel y2 0 residentia l yard s hav e soil s abov e th e 58 0 ppmlea d health

protectiv e cleanup leve l establishe d b yEP Afo r thi s Site
. Th e are a t o b e remediate d unde r thi s Remova l Action , th e Pin e Canyo n Townshi p residentia l area , i s owne d b y individua l residents
. Thi s Remova l Actio n i s expecte d t o b e conducte d byAR unde r a Unilatera 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& R Sit e i s locate d nea r Pin e Canyo n and th e cit y o f Tooele , Utah , approximatel y3 0 mile s southwes t o f Sal t Lak e City , i n Tooel e County , Utah
. Th e IS& R Sit e i s locate d i n Section s 7 , 18 , 19 , an d 3 0 o f T3S-R3 W an

d Section s 12 , 13 , 14 , 23 , an d 2 4 o f T3S-R4W , Sal t Lak e Meridian
. Th e IS& R Sit e i s roughl ybounde d b yth e Oquirr h mountain s t o th e east , rura l residentia l an d farmland o n th e nort h and south , and Pin e Canyo n Townshi p and th e cit yo f Tooel e t o th e west . Thi s Remova l Actio n wil l addres s th e Pin e Canyo n Townshi p are a o f th e IS& R Site
. Adepictio n o f th e IS& R Sit e wit h th e locatio n o f th e propose d action s i s presente d i n Figure s 1 & 2 (attached)
. 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 coppe r 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(IS&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
. Ove r severa l year s th e owner s adde d a lead

zinc sulfid e flotatio n mil l an d 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 th e coppe r smelte r closed
. Lea d 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 an d 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 , an d a coverin g 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 include s 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 and 12 5 acre s o f smeltin g wastes . Th e remainin g acreag e consist s o f ope n areas , mostl yunimpacte d b

ysmelte r operations , and th e Pin e 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 yand zin c i n th e soils , tailing s and slag
. Th e Townshi p o f Pin e Canyo n (formerl yLincoln ) i s locate d o n th e wester n edg e o f th e IS& R Sit e and comprise s approximatel y2 squar e mile s includin g approximatel y10 0 residentia l properties
. Approximatel y 20 0 peopl e liv e i n th e Pin e Canyo n area , includin g approximatel y2 0 childre n unde r th e ag e o f 14
. FromDecembe r 4 , 2001,

- t o June , 13 , 2004 , AR , unde r EPA oversigh t i n connectio n wit h th e RI/F S Order , performe d soi l samplin g activitie s i n th e Pin e Canyo n Townshi p residentia l are a t o defin e th e area l exten t o f contamination
. Thes e samplin g effort s identifie d elevate d concentration s o f contaminant s o f concern , includin g lea d an d arsenic , i n th e yar d soil s o f variou s residences
. A

R als o performe d samplin g o f dus t i n severa l residences
. Th e result s o f thes e samplin g activitie s ar e include d i n report s submitte d t o EPA , entitle d "Dat a SummaryRepor t - Wor k Are a No . 10 , date d Jun e 2002 , AddendumNo . 1 t o Dat a Summar yRepor t - Wor k Are a No . 10 , date d Septembe r 2002 , an d Lincol n Residentia l Sampling , al l prepare d b yAnderso n Engineerin g Company , Inc. , an d accepte d b yEP Ao n Jun e 12 , 2002 , Octobe r 18 , 2002 , an d Jun e 23 , 2004 , respectivel y(collectivel yreferre d t o a s Samplin g Reports)
. A s describe d i n th e Samplin g Reports , soi l sampl e result s fro

m2002-200 4 fromth e Pin e Canyo n Townshi p showe d elevate d level s o f lea d rangin g from"Non-Detect " t o approximatel y188 0 mg/k g (188 0 part s pe r millio n (ppm) ) i n residentia l yards
. Arseni c wa s detecte d i n level s o f u

p t o 15 0 ppm . Lea d level s i n sample s o f househol d dus t collecte d i n Pin e Canyo n i n 2002- 4 range d fro m9 3 t o 36 9 mg/kg
. Tw o resident s hav e show n unacceptabl e level s o f bloo d lea d a t o r abov e 1 0 microgram s pe r deciliter , th e leve l o f concer n indicate d b yth e America n Academ yo f Pediatrics
. I n Jun e 2003 , EP Acomplete d a ris k assessmen t entitle d "Baselin e Huma n Healt h Ris k Assessmen t fo r th e Internationa l Smeltin g an d Refinin g Sit e Tooel e County , Uta h (Final) " USEPA , Regio n 8 , Jun e 200 3 ("EP ARis k Assessment" ) fo r th e Pin e Canyo n Residentia l Are a base d

Pag e 4 o f 1 1

### o n th e Samplin g Reports . Health-base d actio n level s

wer e establishe d b

yEP Abase d o n th e EP ARis k Assessment .
s* 

### 4
. Releas e o r threatene d • > Pleas e int o th e environmen t o f a hazardou s substanc e o r pollutan t o r contaminan t Lea d and arseni c ar e th e primar ycontaminant s o f concer n wit h regar d t o huma n healt h i n Pin e Canyon
. Lea d and arseni c ar e hazardou s substance s a s define d b yCERCLA Sectio n 10 1 (14)
. Thes e hazardou s substance s wer e release d int o loca l soil s b yhistori c smelting and millin g activitie s an d wer e transporte d t o th e residentia l area s b

ysurfac e runof f and aerea l depositio n fro mstac k emissions
. Lea d and arseni c i n soil s presen t a ris k o f incidenta l ingestion
. Th e level s o f lea d an d arseni c reporte d i n th e Sampl e Report s ar e abov e th e health-protectiv e residentia l soi l lea d cleanup level s (actio n levels ) determine d b yEP A fo r th e Sit e (58 0 ppm ) and soi l arseni c cleanup level s fo r th e Sit e (10 0 ppm)
. Thes e actio n level s ar e consisten t wit h actio n level s determine d b yEP Aa t othe r Uta h Superfund sites
. 5
. NPL statu s 

### Th e Sit e i s currentl yliste d o n th e NPL . B . Othe 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 ) wa s 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 , EPAliste d th e IS& R Sit e o n th e NPL . Durin g 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 h an d 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 n o 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 yo f disturbe d areas . 2 . Curren t Action s 

### Th e curren t propose d Remova l Actio n wil l addres s al l th e risk s pose d i n th e Pin e Canyo n Townshi p residentia l are a tha t wer e reporte d i n th e Remedia l Investigation
. .Th e Remedia l Investigatio n fo r th e IS& R Sit e i s currentl yunderwa yand i s schedule d t o b e complete d i n Novembe r 2004
. Th e Feasibilit yStud yi s estimate d t o b e complete d i n Apri l 2005
. C . Stat e an d Loca l Authorities ' Role s 

### UDE Q i s th e suppor t agencyfo r oversigh t o f th e Remedia l Investigatio n and Feasibilit yStudya t th e IS& R Site
. UDE Q wa s activel yinvolve d i n th e preliminar y investigation s an d wil l continu e t o pla ya vita l suppor t rol e i n thi s Remova l Action
. Bot h th e Townshi p o f Pin e Canyo n an d th e Count yo f Tooel e ar e awar e o f th e curren t Sit e condition s an d ar e supportiv e o f th e action s take n t o date
. III . THREAT S T O PUBLI C HEALT H O RWELFAR E O RTH E ENVIRONMENT , AND STATUTOR YAND REGULATOR YAUTHORITIE S
A . Threat s t o Publi c Healt ho r Welfar e 

### Condition s a t th e Sit e presen t a n imminen t an d substantia l endangermen t t o huma n healt h an d th e environmen t an d mee t th e criteri a fo r initiatin g a Remova 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 fromSectio n 300.41 5 (b ) (2 ) o f th e NC P for mth e basi s fo r EPA' s determinatio n o f th e threa t presente d an d th e appropriat e actio n t o b e taken : (i ) Actua l o r potentia l exposur e t o nearbyhuma n populations , animal s o r th e foo d chai n fro m hazardou s substance s o r pollutant s o r contaminants ; (iv ) Hig h level s o f hazardou s substance s o r pollutants , largel ya t o r nea r th e surfac e o f residentia l soils , tha t ma ymigrate
. Becaus e th e propertie s i n questio n ar e alread ybein g use d a s residences , ther e i s a significant , immediat e potentia l fo r continue d exposur e o f huma n populatio n t o unacceptabl e Pag e 6 o f 1 1

### level 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 n o f actio n level s fo r thi s propose dRemova l Action

. B . Threat s 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 h th e contaminatio n withi n th e residentia l areas . IV . ENDANGERMEN T DETERMINATIO N 

### Th e actua l o r

threatene drelease s o f hazardou s substance s 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 n Memorandum , ma y presen t a n imminen t

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

th e environment

. V . PROPOSE D ACTION S AN D ESTIMATE D COST S
A . Propose d Action s 1 . Actio ndescriptio n 

### Th e primar yobjectiv e o f thi s Remova l Actio n i s t o mitigat e th e threat s pose d b ycontaminate d soil 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 and Disposal , and Sit e Restoration
. Th e detail s o f thi s Remova l Actio n wil l b e presente d t o th e PR P i n orde r t o develo p a Wor k Pla n acceptabl e t o EPA . Th e Wor k Pla n i s anticipate d t o b e include d wit h th e UAO expecte d t o b e issue d t o A R fo r thi s Site
. Th e wor k includes :

- Categorizatio n an d inventor yo f soil s a s necessaryfo r th e approximatel y2 0 residence s withi n th e Pin e Canyo n residentia l area ;

- Disposa l o f th e contaminate d soi l a t properl ydesigne d on-sit e repository ; and

- Restoratio n o f th e excavate d area s wit h clea 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 d fo r futur e institutiona l contro l purposes .

Pag e 7 o f 1 1

### Subsequen t action s wil l b e performe d t o th e exten t necessar yt o protec t huma n healt h o 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 . 2 . Contributio nt o Remedia l Performanc e 

### Thi s Remova l Actio n i s consisten t wit h th e long-ter m remedia l actio n anticipate d t o b e take n a t th e IS& R Site
. Thi s Remova l Actio n wil l complet e th e cleanu p fo r th e Pin e Canyo n Townshi p residentia l are a portio n o f th e IS& R Site ; therefore , n o furthe r remedia l actio n i s anticipate d t o b e require d fo r thi s portio n o f th e IS& R Site
. 3 . Descriptio no f Alternat e Technologie s 

### Alternativ e technologie s wer e develope d base d o n th e intende d an d actua l land us e designatio n i n th e Pin e Canyo n Township : residential
. Tw o option s wer e considere d an d evaluate d base d o n overal l protectio n t o huma n healt h and th e environment , shor t and lon g term effectiveness , implementabilit yan d cost . (1 ) Excavat e al l soil s (0-1 8 inche s belo wgroun d surfac e (bgs) ) abov e lea d remediatio n ("action" ) leve l and backfil l wit h clean topsoil
. (2 ) Cove r al l soil s (0-1 8 inche s bgs ) abov e lea d remediatio n leve l wit h clea n topsoil
. 4 . Engineerin g Evaluation/Cos t Analysi s (EE/CA ) 

### A n EE/C Ai s no t require d fo r thi s action
. A s discusse d i n paragrap h 3 , above , tw o option s wer e considere d and evaluate d base d o n overal l protectio n t o huma n healt h and th e environment , shor t and long termeffectiveness , an d implementability
. Alternative s wer e base d o n th e intende d an d actua l residentia l lan d us e i n Pin e Canyon
. Th e chose n optio n i s Alternativ e 1 , Excavatio n and Backfil l fo r Contaminate d Soils , base d o n it s superio r protectio n o f huma n healt h and th e environmen t consisten t wit h th e residentia l cleanup s tha t hav e bee n performe d a t othe r Uta h sites
. 5 . Applicabl e o r Relevan t an d Appropriat e Requirement s (ARARs ) 

### Thi s Remova l Actio n wil l attain , t o th e exten t practicable , considerin g th e exigencie s o f th e

Pag e 8 o f 1 1

### situation , al l applicabl e o r relevan t an d appropriat e Federal , Stat e o r loca l standards , criteri a o r regulation s (ARARs) , whicheve r ar e mor e stringent , fo r thi s Remova l Action
. Apropose d lis t o f ARAR s identifie d fo r thi s Remova l Actio n i s presente d i n Figur e 3 (attached )
. Th e PR P ma yprovid e additiona l ARAR s fo r thi s Action , subjec t t o EP Aapproval
. 6 . Projec t Schedul e Th e cleanu

p wil l b e conducte d i n th e 200 4 constructio n seaso n and complete d withi n approximatel y1 2 month s afte r it s initiation
.

/ 

### B . Estimate 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 yAR , includin g oversigh t cost s (t o b e bille d subsequen t t o completio n o f thi s Remova l Action. ) Oversigh t wil l b e conducte d primaril yb yth e U S Burea u o f Reclamatio n i n coordinatio n wit h th e EP Aan d UDE Q Remedia l Projec t Managers . Th e estimate d cost s o f EP Aperformin g th e propose d actio 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 14,00 0 Lodgin g 140,00 0 Trave l 20,00 0 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 R Desig n Plat(s ) 10,00 0 STAR T Samplin 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 EPACost s $100,00 0 Tota l Cos t $3,143,20 0
Pag e 9 o f 1 1

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

o r indirec t costs , 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 illustrativ e purpose s onl y an dthei r us e i s no t

intende dt o creat e an y right s fo r responsibl e parties

. Neithe r th e lac k

o f tota l cost s estimate s no r deviatio n o 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 . VI . EXPECTE D CHANG E I N TH E SITUATIO N SHOUL D ACTIO N B E DELAYE D

O RNO T TAKEN


### I f n o remova l actio n i s take n o r i f actio n i s delayed , th e resident s i n th e Sit e wil l continu e t o b e expose d t o hig h level s o f lea d and arsenic
. 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 . OUTSTANDINGPOLIC YISSUE S
Non e

Thi s wor k i s bein g conducte d throug h th e us e o f EP ACERCLA enforcemen t authority
. AConfidentia l Enforcemen t Memorandu mi s attache d a s Attachmen t 1
. EP Aanticipate s tha t th e potentiall y responsibl e part yfo r th e Site , AR , wil l complet e th e wor k unde r a Unilatera l Administrativ e Orde r t o b e issue d subsequen t t o thi s Actio n Memorandum
. IX . RECOMMENDATION S Thi s decisio n documen t represent s th e selecte d Remova l Actio n fo r th e Internationa l Smeltin g and Refinin g Sit e i n Pin e Canyon , Tooel e County , Utah
. Th e selecte d Remova l Actio n wa s develope d i n accordanc e wit h CERCLA , a s amended , and i s no t inconsisten t wit h th e NCP
. Thi s decisio n i s base d o n th e administrativ e recor d fo r th e Site
. Condition s a t th e Sit e me t th e NC P criteri a fo r a remova l se t fort h a t 4 0 C.F.R
. sectio n 300.415(b)(2 ) and I recommen d you r approva l o f th e propose d PRP-lea d Remova l Action
.

Approve : Date :

Ma x H . Dodso n Assistan t Regiona l Administrato r 

### Offic e o f Ecosyste mProtectio n and Remediatio n

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 d Remediatio n

Attachments : Fiaur e 2 " DeiledapiS& R Sit e showin g residentia l area s figur e 3 - Applicabl e o r Relevan t an d Appropriat e Requirement s Attachmen t 1 - Confidentia l Enforcemen t Addendu m

Pag e 1 1 o f 1 1V

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### Figur e 3 Applicabl e o r

Relevan t an dAppropriat e Requirement s (ARARs ) Internationa l Smeltin g an dRefinin g Actio n Memorandu m

Tabl e 1 - Chemical Specifi c ARAR s 

### &S®£&uRm®8mis FEDERAL : 4 U CF R Par

t 26 1 4 U CF R part 5 0 criteri a to r

Identificatio n an d Listin g o f Hazardou s wast e Nationa l Ambien t Ai rQualit y Standard s (NAAQS ) waste s generate d durin g th e remova l action s wil l b e identifie d an d liste d a s hazardou s wastes , a s appropriate

. Al l alternative s wil l mee t th e emissio n standard s o f thi s regulation

.

STAT E : UA C R3I5-2- 1
UA C R317-2 UAC Rjl7- b UA C R315-8- 6 UA C RJU7
- 201-1(1 ) UA C Rj07-2U b identificatio n an d

Listin g o f Hazardou s wast e Surfac e wate r Protectio n Groun d Wate r Qualit yprotectio n Rul e Emissio n standard s

- visibl e Emission s Emissio n standards : Fugitiv e Emission s waste s generate d durin g th e remova l action s wil l o e identifie d an d liste d a s hazardou s wastes , a s appropriate

. Al l alternative s wil l compl ywit h stor m wate rrunor rrequirement s t o protec t surrac e wate rbodies

. Remova l o f contaminate d soi l woul d promot e protectio n o f groun 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 h thi s standard

. Emission s fro m th e excavatio n an d disposa l operation s wil l mee t th e standard s o r thi s regulation

. Remova l action s ar e no t expecte d t o caus e significan t visibl e emissions

. , _ Fugitiv e dus t w i 1 1 b e controlle d durin g groun d disturbin g activitie s suc n a s excavation , disposal , an d soi l covering

.

C \Dou\IS\RvAct-Rei\ISActMaroFig3-ARARi-03 wp d Pag e 1 o f 7 Pruned
. July7.200 4

### Tabl e 2 - Actio nSpecifi c ARAR s 

# s^i§Bigii9S^^ ^ FEDERAL : Generatio n o f Hazardou s wast e

Closur e an d Pos t 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 CFR 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

wast e generator s an d fo r hazardou s wast e transporter s Requirement s fo r pos t closur e tha t ensur e preventio n o f derma l an d ingestio n 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 classificatio n and disposa l o f soli d waste . Handlin g an d transportatio n o f hazardou s waste s wil l b e performe d 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 repositor yar e bein g consolidate d i n a n are a o f contamination
. Al l remova l alternative s usin g stagin g pile s wil l operat e run-on/run-of f control s t o protec t huma n healt han 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 i n pile s durin g remova l activities
. Al l alternative s wil l manag e th e soli d wast e i n accordanc e wit hthes e regulations
.

STATE : Correctiv e Actio n Cleanup

Hazardou s Wast e Generato r Closur e an d Post-Closur e 

## UAC 

## Rm- m

UA C RJlb- b UAC RJ1S-8- / 

### Cleanu p standard s

Contaminate d soi l remova l regulation s Closur e Regulation s Th e remova l alternative s wil l emplo yappropriat e measure s t o contro l o r remov e contaminan t source s and wil l utiliz e soi l cleanu p 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 f hazardou s waste s w i 1 1 b e performe d i n complianc e wit hthi s ARAR . Closur e wil l b e performe d t o minimiz e maintenanc e an d threa t t o huma n healt hand th e environment
. Alternative s leavin g contaminate d soi l i n plac e o r disposin g o f contaminate d soi l i n a n on-sit e repositorywil l conduc t 30-yea r post-closur e car e i f necessary .

C \Dnln\IS\RvAci-Rc5\ISALiMcmDFigJ-ARARi-0 3 wp d Pag e 2 o f 7 Printe d July?
. 200

4Ai rPollutan t

Emission s UA C R307-10Z- 1 UA C R307-405- 6 UA C R307-413- 2 UA C R307-401- 6 Regulation s to rth e

emissio n int o th e ai r

soli d an a Hazardou s wast e Definition s UA C R315- 1 

### I T alternative s wiI T preven t emission s o t ai r ontaminant s i n significan t quantities
. Al l Iternative s wil l mee t applicabl e emissio n equirement s o f R30 7 an

d the Uta hStat e Implementatio n 

### Ian . f emission s excee d th e d e minimi s standards , the n omplianc e wit h R307-401- 6 i s require d

^^^^^^^•^^^^^•^^^^•^•^^•^MHV^^^^K^^B^VV^^^^^^^WMIVBlJlBI^^B^^^ ^ 

### ,ipiicabl e detinition s and reference s ca n b e roun d i n thi s regulation
. taste soli d an d Hazardou s wast e Definition s an d Reference s 

### 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 . 

### le s RJlb-8- 1

Landt i I i s 

### UAC nes e measure s wil l b e taken , includin g installatio n o f appropriat e liner s and leachat e collectio n system s a s necessary . installatio n o r Landfill s 

### UAC Thes e regulation s WI Nb e followe d to r an ydisposa l o f waste . Owne r Responsibilit y 

### fo r Soli d wast e soli d wast e disposa l requ i rement s soli d waste s generate d durin g th e remova l activitie s wil l b e manage d an d dispose d i n accordanc e wit hth e Uta hSoli d wast e Permittin g and Managemen t Rule s and th e Utahsoli d and Hazardou s wast e Act . closur e an a Post-Closur e UAC R3J.5-.3UV- 3



### industria l soli d wast e Facilit y Requirement s an d Land f i 1 1 i n g Standard s Groun d wate r Monitorin g Requ i rement s UA C R31i-3U 3 UA C R315-30 4

UA C RJli-30 8 

### Reg u

con t 

### o r 

### d soi l rep o Reg u 

### o f 

### c Thes e standard s ar e applicabl e t o alternative s tha t involv e th e generatio n o f soli d wast e an

d th e disposa l o f tha t wast e i n an on-sit e repository
. They ar e relevan t and appropriat e t o alternative s tha t involv e placemen t o f a cove r ove r contaminate d soi l tha t remain s i n place
. Closur e wi nb e performe dt o minimiz e maintenanc e an d threat s t o huma nhealt han dth e environment .



### Regulation s To r leavin g contaminate d soi l i n plac e o r dispos e o f contaminate d " • a t a n on-sit e Alternative s wil l compl ywit hthes e stanaaras .
Regulation s ro r placemen t o f contaminate d soi l Alternative s involvin g tn e placemen t o r soli d waste s i n a n on-sit e repositorymus 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 ) o r R315-308-K3 ) ar e me t fo r a n exceptio n o r waiver
.

Pag e 3 o f 7 Printe d Jul y 7.200 4

### P I le s use d to r

Storag e and Treatmen t Regulation s to r storag e o l remediatio n waste s i n pile s mor e tha n 9 0 day s AM remova l alternative s tha t stor e remediatio n waste s i n pile s mor e than 9 0 day s wil l compl ywit hth e applicabl e requirement s o f thi s standard
. Teanu p and Risk-Base d closur e standard UAC R315-10 1 Appropriat e sit e management , suc h a s correctiv e action , pos t closur e care , an d institutiona l control s i s require d base d o n identifie d leve l o f ri^l c

C \Dotl\IS\RvAct-Rel\ISActMonoRj3-ARARi-03 wpd PageAo l 7 Pnmet l Jul y 7

. 200

4<•*<•,



### Tabl e 3 - Location-specifi c ARAR s

EDERAL : 

### ationa l Histori c reservatio n Ac t 6 CF RPar t

80 0 0 CFRPar t

6.301Cb ) Histori c projec t ownedo r controlle d b yFedera l agency
. trchaeoIogica I andHi:

Ac t 

### ton e : 

### o r a n alternatives , measure s woul d b e take n t o preserv e ristori c propertie s an d minimiz e har mt o Nationa l Histori c Landmarks
. reservatio n 4 0 CF R Par t b.401(0 ) 1 6 US C Sectio n 46 9
. Clea n wate r Ac t section 404 ; 4 0 CF R Par t 230 , 3 3 CF R Par t 230 , 3 3 CFR Part s 320-33 0 

### 4 0 CF R Par t 6 , Appendi x A Executiv e Orde r 1199 0 4 0 CF R 6.302(a ) an yremova l activit ywil l caus e irreparabl e los s o r destructio n o f significan t cultura l resources , dat a recovery an d preservatio n activitie s wil l b e conducte d i n accordanc e wit hthes e requirement s •^•^^TM^^"^"T*"TM"'"T^T^TM^^^^^^^^ 1 *^^^TM^"TM'TM

TM 

### wetland s Fo r al l alternatives , measure s woul d b e take n t o avoi d advers e effects , minimiz e potentia l harm , an d preserv e an d enhanc e wetlands , t o th e exten t possible , i f wetland impact s d o occur , measure s woul d b e take n t o restor e o r mitigat e wetlands
.
4 UCF RZi/.J- l 4 0 CF R257. 8 Action s take n withi n 100
- yea rfloodplai n Fo ral l alternatives , activitie s woul d eithe roccu routsid e th e 100-yea rfloodplai n o rdesigne d an d maintaine d t o preven t washou t o f th e soi l covers
. Floodplai n regulation s ar e Relevan t an d Appropriat e t o on-sit e activitie s relate d t o in
sit u wast e closur e o rmovemen t an d consolidatio n o f remediatio n wast e withi n th e are a o f contamination

. Thes e regulation s ar e applicabl e t o activitie s involvin g generatio n o rplacemen t o f soli d waste

.

C \DMUS\RvAa-Ra\ISAoMOTDfig3-ARAR^O T wp d Pag e 5 o f 7 Pnntt d Jul y 7.200 4

### rotectio n o r Floodplain s

4 0 CFR 6 , Appendi x A) ; is han d wildlif e Coordinatio n Ac t (1 6 us e 66 1 e t 

### sea. ) 4 0 CF R 6.302(b ) & (g ) Executiv e Orde r 1198 8 (Floodplai n Managemen t Regulations ) i b us e isj l e t sea. ! 4 0 CF R 6.302(h ) Migrator yBir d TreatyAc t (1 6 USC § § e t 

### sea.)Applicabl e withi n floodpTain , natura l streams , and bodie s o f water .

protectio n o r endangere d specie s and migrator y b i 

### rd s 

### Fo r al l alternatives , measure s woul d b e take n t o avoi d advers e effects , minimiz e potentia l harm , restor e an d preserv e natura l and beneficia l value s o f floodplains
. Fis h and wildlif e habitat s i n natura l stream s and bodie s o f wate r woul d b e protecte d a s necessary . Complianc e wit hth e consultatio n requirement s o f th e fis han d wildlif e provision s woul d occur .
Applicabl e t o al l alternatives , i t endangere d specie s o r migrator ybird s ar e presen t a t th e site
.



### STATE : UA

C R3I5-3OZ- 1 

### Locatio n standard s to r

disposa l facilit y So l 1 0 wast e managemen t facilit y wil l beHocate d i n accordanc e wit h thi s regulation

. Thes e regulation s ar e applicabl e t o activitie s involvin g generatio n o rplacemen t o f soli d waste

. UA C R315-IP-T

. 9 FiooopFain s Fo ra n alternatives , activitie s woul d eithe roccu routsid e th e floodplai n o rdesigne d an d maintaine d t o preven t washou t o f th e soi l covers
. Floodplai n regulation s ar e Relevan t an d Appropriat e t o on-sit e activitie s relate d t o in-sit u wast e
. closur e o rmovemen t an d consolidatio n o f remediatio n wast e withi n th e are a o f contamination

. Thes e regulation s ar e applicabl e t o activitie s involvin g generatio n o rplacemen t o f

Pag e 6 o f 7 Prune dJul y 7

. 200 4

## IS&R/Car rFor k Remedia l Investigatio n ADDENDU M No

. 1 

## t o Interi m Data Summar

yRepor t Wor k Are a 1 0
By Orde r of : United State s Environmenta l Protectio n Agency Unilatera l Administrativ e Orde r CERCL A Docke t No
. 08-2001-1 2 Prepare d fo r Atlanti c Rfchfle M Company 30 7 Eas t Park Street , Suit

e 40 0 Anaconda , MT5971 1
Prepared by
.

ANDERSO N ENGINEERIN G COMPANY
. IN C

87 7 Wes t 210

0 Sout h Satt Lak e City , U T8411 9 (601)972-6222

September

2002IS&R/Car rFork Remedia l Investgatn n Dat a Summar

yRepor t Work'Are a 1 0 Addendum

No 1, September

2002 TABL E O F CONTENTS SECTIO N 1. 0 INTRODUCTIO N 1 2. 0 HISTORICA L BACKGROUN D O F TH E SIT E 1 2 1 Sit e Minin g Operatio n Histor y2 2 2 Sit e Reclamatio n Histor y3 2.2. 1 Demolitio n
. 3 22 2 Wast e Consolidatio n 3 2.2. 3 Tailing s Impoundmen t

. . . . 4 2.2. 4 Sla

g Pil e 5 22 5 Smelte rSite 5 22 6 Stor m Runof

f Contro l 6 22 7 Re-vegetatio n 7 22 8 Pos t Constructio n Monitorin g an d Maintenance 7 2. 3 Histor

yof Regulator

yInvolvemen t 7 3 0 HISTORICA L US E O F WOR KARE A 1 0 9 3 1 HistoncalUseoftheLan d 1 0 3 2 Previou s Reclamatio n Activit yi n Wor k

Are a 1 0 1 0 3. 3 Current Lan d Use o f WA1 0 1 1 4. 0 FIEL D SAMPLIN G OBJECTIVE S FO R WA1 0 1 1 5. 0 SAMPLIN G LOCATION S AN D METHODOLOG Y 1 1 5. 1 Surfac e Soi l Sample s 1 1 5 2 Sedimen t Sample s 1 1 5. 3 Residenc

e Dus t Samplin g 1 1 5 4 Auge rBorin g 1 2 5. 5 Samplin g Qualit y1 2 6. 0 RESULTS 1 2 6 1 Lead ' ^ 61. 1 5 - Poin t (Non-residentia l Yard ) Composit e Sample s (0-2 " depth ) - Lead 1 2 6. 1 2 Sedimen t Sample s - Lead 1 3 6 1. 3 Residentia l Sample s -Lead 1 3 6 2 Arseni c 1 4 6.2 1 5- Point (Non-residential

Yard) Composite

Samples

( 0-2" depth) - Arseni c 1 4 6 2. 2 Sedimen

t Sample s - Arseni c 1 4 62 3 Residentia l Sample s - Arseni c 1 5 7. 0 QUALIT

Y CONTRO L (QC

) 1 5 7. 1 Fiel d Q C 1 5 7.1 1 Sampl e Designatio n
... . 1 5 7.1 2 Samplin g Equipmen t Procedures 1 5
Atlanti c Richfiel d Company I June
- 200 2IS&R/Car rFork Remedia l Investigatjo n Dat a Summar

yRepor t Wor k Are a 1 0 Addendum

No 1, September

2002 7.1 3 Sampl e Handlin

g an d Analysi s
.. . . . . 1 5 7.1. 4 Procedures
. 1 6 71 5 WA1 0 Field Duplicat e Result s
. .1 6 71 6 WA1 0 Equipmen t Blan k Result s 1 7 7. 2 Laborator

yQ C

. . 1 7 72 1 WA1 0 Laborator yMatri xSpik

e Recover

yResult s 1 7 72 3 WA10Laborator yMatnxSpik

e Duplicate

s 1 8 8. 0 REFERENCE S
. . . 1 8 LISTO F FIGURE S Figur e 1 Vicinit

yMa p Figur e 2 Locatio n Ma p Figur e 3 Sampl e Location s Figur e 4 P b & As Value s fro m Sampl e Result s Samplin g of Residentia l Propertie s Figur e 1 R Maften a Figur e 2 R Warne r Figur e 3 R Fretwel l Figur e 4 R Blackshe r Figur e 5 R Allowa

y Figur e 6 R Jackso n Figur e 7 R Breitlga m Figur e 8 R Fis h LISTO F TABLE S Tabl e 1 WA1 0 Analytica l Result s LISTO F APPENDICE S Appendi xAStandard Operatin g Procedure s Appendi xB Laborator yQ C Procedure s Appendi xC Electroni cFil e

Atlanti cRichfiel d CompanyH " June , 200 2IS&R/Car rFork Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 DEFINITION S Anacond a ARA R Atlanti cRichfiel d BSH W CERCL A CP M DER R DOG M DQ O EPA FI T F S FS P MR S IS& R JB R KUC C LA P MC L NRC S NP L PA PARC C Q A QAP P Q C R A RCR A R D R l RO D SA P SC M SDWPS ' SGC M S I sit e SO P SO W TCL P TD S Anacond a Coppe rCompan y Applicabl e o rRelevan t an d Appropriat e Requirement s Atlanti cRichfiel d Compan y Burea u o f Soli d an d Hazardou s Wast e Comprehensiv e Environmenta l Response , Compensation , an d Liabilit yAct Critica l Pat h Metho d Uta h Divisio n o f Environmenta l Respons e an d Remediatio n Divisio n o

f Oil , Gas , an d Minin g Data Quality Objectives Unite d State s Environmenta l Protectio n Agenc y EPA' s Fiel d Investigatio n Tea m Feasibilit yStud y Fiel d Samplin g Pla n prepare d fo rth e IS&R/Car rFor k sit e byAEC I Hazard Rankin g Syste m Internationa l Smeltin g an d Refinin g Compan y JB R Environmenta l Consultants , In c(Formerl yKnow n a s JB R Consultan t Group ) Kennecot t Uta h Coppe rCorporatio n Laborator

yAnalytica l Protoco l Maximu m Contaminan t Level s Nationa l Resourc e Conservatio n Servic e Nationa l Prioritie s List fo rUncontrolle d Hazardou s Wast e Site s Preliminar

yAssessmen t Dat a QualityIndicator

s Includin g Precision , Accuracyan d Bia s Representativeness , Comparability , an d Completenes s Qualit yAssuranc e Qualit yAssurance Projec

t Plan Qualit yContro l Remedia l Actio n Resourc e Conservatio n an d Recover yAct Remedia l Desig n Remedia l Investigatio n Recor d o f Decisio n Samplin g Analysi s Pla n prepare d fo rth e IS&R/Car rFor k sit e byAEC I Sit e Conceptua l Mode l Secondar

yDrinkin g Wate rProtectio n Standard Sit e Groundwate rConceptua l Mode l Sit e Inspectio n IS&R/Car rFor k

propertyan d adjacen t propertie s t o b e investigate d Standar d Operatin g Procedure Scop e o f Wor k Toxicit yCharacteristi cLeachat e Procedure Tota l Dissolve d Solid s

Atlanti cRichfiel d Compan y i n June , 200 2IS&R/Car rFor k Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 UDE Q Uta h Departmen t o f Environmenta l Quality UDW R Uta h Divisio n o f Wildlif e Resource s USG S Unite d State s Geologica l Surve y US U Uta h Stat e Universit y Wast e Isolatio n Cel l cel l wher e specifie d waste s wer e place d i n 198 6 Wor k Pla n prepare d fo rth e IS&R/Car rFor k sit e b yAEC I

Atlanti c Richfiel d Compan yi vJune , 200 2IS&R/Car rFor k Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 WOR KARE A1 0 DAT ASUMMAR YREPOR T

1. 0 INTRODUCTIO N Atlanti cRichfiel d Compan y(Atlanti cRichfield ) i n respons e t o th e Unilatera l Administrativ e Orde r CERCL ADocke t N o 08-2001-1 2 i s completin g a Remedia l Investigatio n a t th e IS&R/Car rFor k Sit e nea rTooele , Uta h I n accordanc e wit h th e agree d upo n schedul e include d i n that documen t i s th e requiremen t tha t Atlanti cRichfiel d provid e t o th e EP Ainteri m summane s o f Fiel d Samplin g dat a result s Dat a summaryreport s ar e t o b e submitte d 6 0 day s followin g th e completio n o f eac h Wor k Are a Thi s report , summarize s th e dat a fo rWor k Are a 1 0 (WA10 ) Thi s dat a summar

yreport present s informatio n acquire d i n accordanc e wit h th e Samplin g an d Analysi s Pla n performe d durin g th e Remedia l Investigation / FeasibilityStud yo f th e IS&R/Car r For k sit e i n Tooele , Uta h Ama p fo rth e sit e i s presente d i n Figur e 1 Figure 2 show s WA1 0 an d Figur e 3 show s th e fiel d location s wher e samplin g wa s complete d Thi s repor

t als o include s a genera l sit e backgroun d discussio n an d specificall ya n operationa l histor yo f th e subject Wor k

Are a 2. 0 HISTORICA L BACKGROUN D O F TH E SIT E Th e sit e i s locate d i n Tooel e County , Uta h o n th e wes t flan k o f th e Oquirr h Mountain s at th e mout h o f Pin e Canyon

. Coverin g a n are a o f approximatel y1,20 0 acre s o n whic h copper , lead , an d zin cor e minin g an d processin g occurre d ove ra perio d o f abou t 7 0 years , th e sit e historicall yinclude d min e workings , a mil l site , a smelte rarea , a sla g pile , a tailing s impoundment , settlin g pond , an d a landfil l are a Mos t o f thes e feature s wer e reclaime d durin g th e fal l an d sprin g o f 1986/1987 , a s describe d i n th e reclamatio n pla n (JBR , 1986 ) Th e sit e wa s vegetate d durin g th e reclamatio n activitie s i n 198 6 wit h grasses , forbe s an d occasiona l shrubs , an d re-seedin g o f specifi c area s a s necessaryha s bee n performe d durin g sit e maintenanc e activitie s sinc e the n Currently , th e are a consist s o f gentl yslopin g benche s intersperse d wit h short , stee p fil l slope s Since 1994 , th e sit e ha s bee n manage d b yth e Uta h Divisio n o f Wildlife-Resource s (UDWR ) fo rwildlif e habita t an d conservatio n values

. Pin e Canyo n i s short an d narro wwit h a distanc e fro m hea d t o mout h o f approximatel ythre e mile s Th e canyo n i s draine d b yPin e Cree k wit h contribution s fro m adjacen t Pol e Canyo n an d othe rsid e canyon s tha t joi n Pin e Cree k alon g it s reac h Pin e Canyo n Cree k flow s wes t ou t o f Pin e Canyo n alon g th e norther n boundar yo f th e forme rsmelte rsit e Upstrea m o f th e site , th e strea m receive s w.ate rfrom , othe rmin e facilitie s i n uppe rPin e Canyon , flow s throug h th e sit e an d continue s westwar d fo ra short distanc e befor e infiltratin g int o th e unsaturate d alluviu m pno r t o reachin g th e propert ylin e Historicall ysno wan d stor m runof f fro m a portio n o f th e smelte r are a an d th e terrac e are a belo wth e smelter , flowe d int o Pin e Cree k Th e runof f mingle d wit h th e min e wate ran d wa s use d a s irrigatio n wate ri n WA1 0 nea rth e smelte rpropert yTh e 1986 reclamatio n include d drainag e modification s an d gradin g t o minimiz e th e opportunit yfo rrunoff flow s fro m th e sit e t o reac h Pin e Cree k

Atlanti cRichfiel d Compan y1 June

. 200 2IS&R/Car rFor k Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 Tw o facilitie s wer e operate d i n th e proximit yo f th e site , th e IS& R smelte ran d th e Car rFor k Operation s Th e olde rIS& R operations , consistin g o f approximatel y120 0 acres , wer e conducte d o n a broa d benc h a t th e mout h o f Pin e Canyo n Th e Car rFor k Millin g Operation s wer e locate d o n 1 2 5 acre s withi n Pin e Canyo n Th e propert yo n whic h th e millin g operation s wer e located , excep t fo rth e settlin g an d tailin g ponds , wa s sol d t o Kennecott i n 198 5 2 1 Sit e Minin g Operatio n Histor y I n th e earl y1900's , whe n IS& R bega n lookin g fo ra developmen t site , nea rSal t Lake City , th e mout h o f Pin e Canyo n i n th e Tooel e Valle ywa s considere d a n idea l locatio n fo r placin g a ne wsmelte rThinkin g wa s tha t predominan t westerl ywind s woul d carr ystac k emission s u p th e canyo n an d awa yfro m Tooel e CityTh e sit e wa s adjacen t t o larg e or e supplies , wa s nea rt o th e mai n lin e railroa d an d i t wa s jus t ove rth e Oquirrh s fro m th e Sal t Lak e Valle yOr e fro m th e eas t sid e o f th e Oquirrh s wa s brough t t o th e sit e b yaeria l tramwa yan d th e 4 36-mil e lon g Elto n tunne l Th e Internationa l Smeltin g an d Refinin g Compan ybega n operation s nea rTooel e i n 191 0 Fro m 191 0 throug h 1972 , IS& R operate d a coppe ran d lea d smelte ran d a lead
zin cflotatio n mil l I n th e earl yyear s o f th e IS& R operation , tailings , sla g an d flu e dust wer e produce d a t a n annua l rat e o f approximatel y650,00 0 tons/yea r(SLMR , 1 5 May , 1928 , p p 9-10 ) an d decline d wit h outpu t i n late ryear s Approximatel y32 6 acre s o f tailing s o f a n unknow n volum e wer e dispose d o f on-sit e Th e coppe rsmelte rwa s close d i n 194 6 followe d b yth e closur e o f th e lead-zin cflotatio n mil l i n 196 8 an d finall y closur e o f th e lea d smelte ri n 1972 Th e smelte rfacilitywa s demolishe d i n 1972-197 4 Fro m 197

4 throug h 198 1 th e Anacond a Compan yconstructe d an d operate d a min e an d mil l know n a s th e Car rFor k Operations , jus t t o th e eas t o f th e IS& R smelte rsit e i n Pin e Canyo n Th e Anacond a Car rFor k operatio n bega n processin g ore i n 197 9 Tailing s fro m th e Car rFor k

Operation s wer e transporte d dow n Pin e Canyo n t o th e origina l IS& R tailing s Ane wtailing s da m alon g th e wester n edg e o f th e origina l tailing s wa s constructe d a s par

t o f th e Car rFor k

operatio n t o contai n th e tailing s produce d b yth e ne wmil l Becaus e o f th e shor t operationa l duratio n o f th e Car rFor k Mill , th e Car rFor k tailing s onl yencompas s abou t 6 4 acre s (Jackson , 1979 ) Th e min e wa s idle d i n Novembe r198 1 whil e Anacond a waite d fo rmore favorabl e coppe r price s (JBR , 1986 ) Whe n th e economi cfeasibilit yo f th e operation s di d no t improve , th e processin g facilitie s wer e dismantled , sol d an d remove d fro m th e propertyA s previousl ystated , th e property , whic h house d th e Car rFor k operations , severa l acre s o f lan d eas t o f th e smelte rsit e an d selecte d othe rCar rFor k holdings , wer e sol d t o Kennecott i n Octobe r198 5 (JBR , 1986) Th e Uta h Mine d Lan d Reclamatio n Ac t o f May1975 , require d reclamatio n fo rth e Can

For k operation s Th e IS& R smelte rwa s "pre-law " an d di d no t fal l unde rclean-u p requirement s o f th e Ac t excep t a s affecte d b ypos t operation s However , Atlanti c Richfiel d voluntaril yinclude d bot h th e area s encompasse d b yth e IS& R an d Car rFor k operation s i n it s reclamatio n wor k Afte rpreliminar

ystudie s conducte d b yvariou s agencies , i n 198 6 Atlanti cRichfiel d evaluate d th e sit e an d prepare d a reclamatio n pla n fo rth e sit e (JBR , 1986 ) Upo n

Atlanti cRichfiel d Compan y2 June , 200 2

# i * 

# f IS&R/Car rFor k Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 approva l t o procee d fro m th e Stat e o f Uta h DOGM , reclamatio n action s identifie d i n th e pla n wer e complete d durin g th e fal l an d sprin g o f 1986/198 7 (Anderson , 1986 ) 2 2 Sit e Reclamatio n Histor y Durin g th e year s 1986-198 7 Atlanti cRichfiel d performe d a n extensiv e voluntar y reclamatio n a t th e propert yt o contro l potentia l risk s t o healt h an d th e environmen t Th e reclamatio n wor k

include d th e remova l of remainin g building s an d structures , consolidatio n o f wast e materials , constructio n o f stor m wate rcontrol s an d placemen t o f a ca p an d cove rsoi l ove rth e majorit yo f disturbe d area s a t th e sit e Thes e reclamatio n action s involve d th e followin g tasks ' 2 2. 1 Demolitio n Demolitio n activitie s include d th e following '

• Remova l o f remainin g asbesto s materia l fro m building s o n sit e Asbesto s containin g material s wer e abate d b ya professiona l abatemen t contracto r an d dispose d o f of

f sit e at a certifie d landfil l

• Disposa l o f remainin g surplu s equipment , furnitur e an d othe rdebri s stockpile d o n sit e an d i n building s Ther e wer e fe wmajo ritem s remainin g i n th e building s stil l standin g i n 1987 excep t fo rth e warehous e whic h containe d mechanica l equipmen t Mos t building s ha d previousl ybee n cleare d o f furniture , equipment , et cprio rt o th e reclamatio n activit y Remainin g debri s wa s place d i n th e on-sit e Car rFor k landfil l o n th e eas t en d of th e smelte rsite

.

• Demolitio n o f administratio n building , assa yla b an d office , residentia l home , warehous e an d othe rmiscellaneou s ou t building s Buildin g debn s wa s place d an d compacte d int o th e Car rFor k landfil l o n th e eas t en d o f th e smelte rsit e 22 2 Wast e Consolidatio n Th e sit e investigatio n repor t identifie d certai n scattere d wast e matenal s remainin g o n sit e whic h shoul d b e move d an d consolidate d int o a newl ycreate d wast e isolatio n cel l Th e locatio n chose n fo rth e wast e cel l wa s i n th e Car rFork tailing s Becaus e th e tailing s wer e th e flattes t terrai n o n th e propertyth e chose n locatio n ha s a minima l potentia l fo rmobilizatio n o f waste s b ysurfac e wate r erosio n I n addition , th e mineralog yo f th e tailing s include s a significan t percentag e o f carbonat e materia l providin g a sufficien t neutralizatio n potentia l fo r an yaci d leachat e produce d b yth e lo wp H smelte rwaste s Wast e Consolidatio n activitie s include d th e followin g

• Constructio n o f a Wast e Isolatio n Cel l withi n th e Car rFor k Tailing s Impoundmen t

Atlanti cRichfiel d Compan y3 June

. 200 2IS&R/Car rFor k Remedia l Investigatio n Dat a Summar

yReport Wor k

Are a 1 0

• Relocatio n o f specifie d wast e pile s Th e waste s whic h wer e selecte d t o b e relocate d t o th e isolatio n trenc h wer e thos e whic h faile d th e E P toxicit y standard s o rwer e foun d t o b e acid-generatin g Th e volum e o f waste s whic h wer e slate d fo rrelocatio n wa s 21 5 cubi cyard s (JBR , 1986 ) Th e wast e pile s wer e remove d usin g a loader , therefore , som e underlyin g an d surroundin g materia l wa s unavoidabl yremove d an d place d i n th e wast e isolatio n cel l als o Th e constructe d volum e capacit yo f th e wast e isolatio n cel l wa s approximatel y105 0 cubi cyard s I t i s suspecte d tha t 2/ 3 t o 3/ 4 o f th e content s o f th e isolatio n cel l i s compose d o f materia l whic h i s no t aci d generatin g an d woul d no t fai l th e EP-toxicitystandar d

• Construc t a 5-ft compacte d clea n borro wsoi l ca p ove rth e Wast e Isolatio n Cel l Grad e th e surfac e t o expe l wate rt o minimize wate rmigratio n int o th e wast e material s (Precipitatio n whic h fall s o n th e wast e isolatio n cel l drain s t o th e adjacen t area s an d combine s wit h runoff , whic h eventuall y drain s int o th e newl yconstructe d Dr yCree k channe l Thi s wate ri s ultimatel ycapture d i n th e forme rborro ware a a t th e southwes t corne ro f th e sit e However , du e to'th e smal l siz e o f th e wast e isolatio n cel l (approximatel y15 0 fee t b y5 0 feet) , th e wate rdrainag e fro m th e wast e isolatio n cel l ca p surfac e i s minimal )
22 3 Tailing s Impoundmen t Reclamatio n activitie s o f th e tailing s impoundmen t include d th e followin g

• Distributio n o f lim e ove rth e Car rFor k tailing s surfac e t o provid e a neutralizatio n buffe rbetwee n th e tailing s an d cove r

• Constructio n o f a 12-inc h thic k cove rsoi l ca p fro m clea n borro wmateria l ove rth e surfac e o f th e tailing s impoundmen t an d alon g th e platea u eas t o f th e impoundmen t whereve rtailing s wer e visibl e

• Cutting/fillin g ol d IS& R Tailing s dike slope s t o 3 H 1 V an d the n plac e a 6 t o 12-inc h ca p o f clea n cove rsoi l ove rentir e surfac e

• Constructio n o f erosio n terrace s a s neede d t o preven t damag e t o newl y place d cove ran d re-grade d surface s

• Constructio n o f bulkhea d i n porta l o f Elto n Tunne l an d backfil l at 3 H 1 V agains t adi t (I n 1999 , th e concret e entranc e o f th e Elto n Tunne l wa s demolishe d an d burie d i n place )

• Grad e sid e slope s o f forme rElto n Tunne l wast e roc k pil e t o 3 H 1 V an d the n plac e 12-inc h dept h o f clea n topsoi l cove rove rentire surfac e

• Construct runof f contro l terrace s a s require d t o protec t cove ran d remediate d area s fro m damag e

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• Grad e embankmen t sid e slope s o f forme rsettlin g pond s t o 3 H 1 V

• Plac e a 12-inc h dept h cove ro f clea n topsoi l ove rentir e pon d an d embankmen t surface s

• Grad e stee p slope s o n pipelin e roa d t o 3 H 1 V t o provid e surfac e fo r seedin g Construc t terrace s alon g pipelin e rout e a s require d t o contro l stor m runof f an d protect newl ygrade d surface s

• See d an d fertiliz e al l disturbe d area s wit h 16-2 5 pls/a co f nativ e grasses , forbe s an d shrub s (typica l t o al l sit e seedin g operation s wa s placemen t o f 200 0 Ib/acr e o f gree n alfalf a mulc h an d applicatio n o f 48 4 Ibs/acr e o f ammonium-phosphat e (16-48-0 ) Th e followin g spnn g (1987 ) 10 9 Ibs/acr e o f ure a (46-0-0 ) wa s applie d t o seede d areas ) I n additio n t o seeding , 18,34 5 units o f containe rstoc k (shrubs ) wer e plante d durin g th e sprin g o f 198 7 a t variou s location s o n th e smelte rsit e 22 4 Sla g Pil e Reclamatio n activitie s o f th e sla g pil e include d th e followin g activitie s

* • Fil l void s i n remainin g buildin g foundation s Constructio n of 3 H 1 V slop e agains t remainin g foundatio n walls , usin g clea n borro w

• Construc

t runof f terrace s at cres t o f slope s an d alon g pave d acces s road s t o protect newl yconstructe d area s

• Construct a 60-inc h tal l safet yber m fro m sla g materia l alon g th e oute r edg e o f th e sla g pil e t o dete ractivit ynea redg e o f sla g pil e

• Plac e clea n cove rsoil , 18-mche s i n depth , ove rth e accessibl e surfac e area s o f th e sla g pil e t o promot e evapo-transpiratio n o f rainfal l an d provid e a vegetatio n growt h laye r 22 5 Smelte rSit

e — Reclamatio n constructio n o n th e forme rsmelte rsit e include d th e followin g activities :

• Construc

t 3 H 1 V slop e fills , usin g clea n borro wmaterials , against remainin g proces s buildings , concret e retainin g wall s an d foundation s

• Consolidat e wast e material s an d clos e histori clandfill s remainin g o n sit e (thre e separat e landfill s wer e close d a s par t o f th e 198 6 reclamatio n project , includin g th e Parkin g Lot Landfill , Pin e Canyo n Landfil l an d th e Car rFor k

landfil l Thi s wa s prio rt o th e Soli d Wast e Permittin g regulations , whic h too k effec t i n July , 199 9 Al l wor k complete d i n th e 198 6 reclamatio n wa s complete d unde rth e oversigh t o f th e Divisio n o f Oil , Gas , an d Mining

. Th e materia l place d i n th e landfil l occurre d dunn g

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yRepor t Wor k Are a 1 0 th e demolitio n an d reclamatio n phase s i n 198 6 A t tha t tim e buildin g debri s wa s place d i n layers , crushed , compacted , an d covere d wit h clea n borro wa t th e en d o f eac h day ) Followin g placemen t o f debn s th e surfac e o f th e landfil l wa s cappe d wit h 1 2 inche s o f clea n soi l an d re vegetate d

• Fil l an d compact remainin g basements , tunnel s an d expose d undergroun d shaft s wit h clea n borro wmateria l

• Cut/fil l nort h embankmen t t o a slop e o f 3 H 1 V slop e t o preven t hea d cuttin g int o th e Car rFor k landfil l an d prepar e surfac e fo rseedin g

• Grad e smelte ryar d area s t o a unifor m contoure d slope , eliminatin g ridge s an d isolate d surfac e inconsistencie s

• Plac e a 12-inc h dept h o f clea n cove rsoi l ove rth e entire smelte rsit e

• Cove rove rtailing s material s i n erode d ravine s wit h clea n soi l an d prepar e fo rre-vegetatio n

• Ad d additiona l fil l an d shap e ravine s t o correlat e surfac e drainag e wit h sit e drainag e pla n * 22 6 Stor m Runoff Contro l Stor m runoff contro l activitie s a t th e sit e consiste d o f th e followin g

• Construct stor m runof f control s (se e Anderson , 1986 ) (Approximatel y 5,97 5 linea rfee t o f channe l an d on e concret e contro l structur e wa s constructe d Th e concret e structur e wa s constructe d t o contro l wate r flow s i n Dr

yCanyo n Adrawin g o f th e structur e i s include d i n th e as-buil t drawing s previousl yprovide d t o EP A2,15 7 fee t o f stor m channe l wa s constructe d wit h ston e ri p ra p Approximatel y14,24 0 linea rfee t o f larg e earthe n sedimen t berm s wer e constructe d t o redirect an d protect slop e fill s fro m stor m wate rrunoff)

.

• Excavat e a larg e engineere d breac h i n th e Car rFor k Impoundmen t (Thi s cu t allow s stor m drainag e t o pas s throug h th e tailing s impoundmen t dam , rathe rtha n collectin g an d pondin g i n th e tailing s impoundmen t wher e i t i s susceptibl e t o infiltratio n throug h tailing s materials )

• Construct cutof f channe l abov e smelte rsit e i n Wor k Are a N o 5 , t o direc

t stor m runof f aroun d reclaime d feature s

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yRepor t Wor k Are a 1 0 2. 2 7 Re-vegetatio n Re-vegetatio n activitie s consiste d o f preparin g cove rsoil , seeding , spreadin g mulc h an d fertilizin g al l disturbe d area s onsite , includin g remediate d areas , borro wsource s an d temporaryconstructio n road s (Th e fertilizatio n durin g reclamatio n activitie s adde d a tota l o f 17 7 pounds/acr e o f nitroge n (a s N ) t o th e soi l i n al l area s whic h receive d cove rmateria l an d wer e re-vegetate d Thi s include s area s withi n WA-2 , WA-3 , WA-4 , WA-6 , WA-7 , WA-8 , WA- 9 an d WA


### 11 ) 22 8 Pos t Constructio n Monitorin g an d Maintenanc e Atlanti cRichfield , i n cooperatio n wit h th e Stat e Divisio n o f Wildlif e Resources , ha s continue d t o conduct maintenanc e o f th e reclamatio n feature s a t th e sit e a s necessarysinc e completio n o f th e reclamatio n wor k i n 198 7 (Require d repai r wor k ha s primaril ybee n surficia l erosio n repai ran d fenc e repai rDurin g th e Fal l o f 1999 , Atlanti cRichfiel d complete d th e mos t recen t maintenanc e wor k show n below ) Th e followin g informatio n wa s reporte d i n th e Car rFor k Maintenanc e Operation s Fina l Repor t (Anderson , 2000 )

• Repai ro f shallo werosio n rill s whic h hav e develope d i n th e protectiv e soi l cove rplace d ove rth e tailin g impoundmen t an d smelte rarea
.

• Construc t a spillwa ya t th e ne wwate rholdin g pon d nea rth e Elto n Tunne l adi t previousl yconstructe d Repai ro f th e erode d channe l fro m th e pon d whic h ha d expose d th e forme radi t an d porta l structure

• Demolis h th e expose d concret e Elto n Tunne l porta l an d backfil l th e are a

• Fil l area s o f settlemen t i n th e soi l cove ro n th e sla g pil e t o preven t wate r fro m accumulatin g o n th e surfac e

• Constructio n o f diversio n berm s i n smelte rare a o n th e edg e o f Dr yCree k Canyo n t o preven t futur e erosio n damag e t o Dr yCanyo n hillsid e 2 3 Histor

yo f Regulator

yInvolvemen t Pas t regulator

yagenc yinvolvemen t o n th e developmen t o f th e Car rFork/IS& R Reclamatio n Project complete d i n 198 7 i s documente d belo w

. Uta h Divisio n o f Oil , Ga s an d Minin g reviewe d a Notic e o f Inten t fo rth e Car rFor k operation s an d approve d th e Minin g an d Reclamatio n pla n fo rsam e o n Marc h 7 , 1980

.

. Th e Conceptua l Reclamation/Stabilizatio n Pla n (JBR , 1986 ) fo rth e sit e wa s discusse d wit h th e Uta h Divisio n o f Oil , Ga s an d Minin g an d th e Divisio n o f Environmenta l Healt h o n Jul y22 , 198 5

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• Reclamatio n o f th e remainin g building s an d othe rIS& R Facilitie s wa s include d a s a voluntaryactio n i n th e Reclamation/Stabilizatio n Pla n

. Th e Draf t Conceptua l Reclamation/Stabilizatio n Pla n (JBR , 1986 ) fo rth e sit e wa s submitte d t o th e EP ARegio n VIII , Uta h Divisio n o f Oil , Ga s an d Mining , Uta h Divisio n o f Environmenta l Health , an d th e Tooel e Count yPlannin g Offic e fo r revie wan d commen t o n Augus t 26,198 5

• Representative s o f th e Uta h Divisio n o f Oil , Ga s an d Minin g an d th e Divisio n o f Environmenta l Healt h visite d th e sit e wit h Atlanti cRichfiel d representative s o n Septembe r1 7 an d 24 , 198 5 t o discus s th e propose d fiel d investigation s an d dat a analyse s

• Th e fina l Reclamation/Stabilizatio n Pla n fo rth e sit e wa s submitte d t o th e Uta h Divisio n o f Oil , Ga s an d Mining , Uta h Divisio n o f Environmenta l Health , an d th e Tooel e Count yPlannin g Offic e fo rrevie wan d commen t o n Marc h 3 , 198 6

• Th e constructio n o f th e Reclamation/Stabilizatio n Pla n elements wa s conducte d i n lat e 198 6 an d earl y198 7 Inspector s fro m th e Uta h Divisio n o f Oil , Ga s an d Minin g visite d th e sit e durin g constructio n

• Pos t reclamatio n monitorin g o f th e sit e wa s performe d i n 1987 , 1988 , an d 198 9 Afina l repor

t o n th e monitorin g activitie s wa s prepare d o n Apri l 5 , 199 0 an d submitte d t o th e Uta h Divisio n o f Oil , Ga s an d Minin g (JBR , 1990 ) Thi s repor t indicate d tha t th e objective s o f reclaimin g an d stabilizin g th e sit e wer e largel yme t wit h som e relativel ysmal l area s requirin g additiona l grading , whic h wa s accomplishe d th e nex

t constructio n seaso n

• Th e Uta h Divisio n o f Oil , Ga s an d Minin g release d Atlanti cRichfiel d o f furthe r minin g reclamatio n liabilit yfo rth e sit e i n 199 0

• Atlanti cRichfiel d entere d int o a conservatio n easemen t agreemen t wit h th e Uta h Divisio n o f Wildlife Resource s i n April , 199 4 t o manag e th e sit e fo rwildlif e habita t an d conservatio n value s Involvemen t o f regulator yagencie s i n th e federa l CERCLAproces s fo rth e sit e i s documente d below

• Th e Uta h Divisio n o f Environmenta l Health , Burea u o f Soli d an d Hazardou s Wast e conducte d a Preliminar yAssessmen t o f th e sit e i n Marc h 1984 Thi s P A recommende d conductin g a sit e Inspectio n

• Th e Uta h Divisio n o f Environmenta l Health , Burea u o f Soli d an d Hazardou s Wast e conducte d a n S I o f th e sit e an d publishe d thei rrepor t o n Augus t 31,198 4

• Th e EP ARegio n VII I Fiel d Investigatio n Tea m conducte d additiona l S I studie s i n th e summe ro f 198 5

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. Th e MR S scorin g packag e prepare d o n Septembe r25 , 198 5 conclude d tha t th e tota l sit e scor e wa s 9 2 7 Thi s scorin g wa s prepare d prio rt o an yreclamatio n activitie s complete d o n th e sit e i n 1986/198 7 (Tuesday , 1985 )

• Fro m September , 199 5 t o February , 1996 , th e Uta h Departmen t o f Environmenta l Qualit yDivision , unde ra n agreemen t wit h th e EPA , conducte d a n Expande d S I i n accordanc e wit h EP Aguidanc e fo ractivitie s a t CERCLAsites

. Thi s investigatio n evaluate d th e sit e base d o n previou s sample s collecte d wit h supplementa l on-sit e samplin g complete d a s par t o f th e investigatio n (UDEQ , 1997)

. Th e MR S scorin g packag e prepare d o n Februar y24 , 1999 , conclude d tha t th e tota l sit e scor e wa s 5 8 3 1 (EPA , 1999 )

. April , 1999 , EP A propose d t o lis t th e IS& R sit e o n th e NP L

. Jul y22 , 1999,Atlanti cRichfiel d submitte d t o EP A comment s opposin g th e propose d listin g o f th e sit e (Arnol d & Porter , Jul y22,1999 )

• Octobe r1 , 1999 , Atlanti cRichfiel d submitte d t o EP ASupplementa l Comment s o n th e propose d listin g o f th e IS& R sit e i n Tooele , Uta h (Arnol d & Porter , Jul y22 , 1999 )

. Jul y2000 , Fina l listin g o f th e EP A o f th e IS& R sit e o n th e NP L

• Jul y2000 , EP Aissue s response s t o Atlanti cRichfiel d comment s opposin g th e propose d listin g of th e site

.

. Decembe r2000 , Atlanti cRichfiel d prepare s an d provide s t o th e EP A a Wor k Pla n fo rth e Remedia l Investigatio n 3. 0 HISTORICA L US E O F WOR KARE A 1 0 Wor k Are a 1 0 define s a n are a whic h lie s t o th e wes t o f th e smelte roperation s an d tailing s pond s area s an d include s farm s an d residentia l propertie s o f th e area'historicall yknow n a s th e Lincol n Townshi p (thi s are a wa s neve rincorporate d an d ha s bee n know n a s Lake View , Pin e Canyo n an d Lincol n however , i n orde rt o eliminat e confusio n wit h th e actua l Pin e Canyo n drainag e thi s reoort use s th e historica l Lincol n nam e fo rWor k Are a N o 10)

. Thi s are a include s th e SW1/ 4 o f Sectio n 1 2 S 1 /

z o f Sectio n 11 , N W 1/

4 o f Sectio n 13 , N 1 / 2 o f Sectio n 14 , N 1 / 2 o f th e S % o f Sectio n 14 ' S E 1/

4 o f th e S E 1/

4 o f Sectio n 14 , an d portion s o f Sectio n 2 3 bounde d b yWA9 , al l i n townshi p 3 Sout h an d Rang e 4 Wes t (Se e Figur e 2)

. Thi s wor k

are a i s dow n gradien t fro m al l smelte ran d associate d operation s Surfac e impact s t o thi s are a coul d b e fro m smelte rstac k emission s durin g th e year s o f operations , migration s o f particle s b ywind , stor m runoff water s carryin g sediment s fro m u p gradien t impacte d areas , o rfro m irrigatio n wate rfro m Pin e Cree k an d th e Elto n Tunne l carryin g sediment s and/o ra hig h concentratio n o f dissolve d solid s fro m impacte d source s u p strea m Th e purpos e fo rthi s are a bein g include d i n th e investigation s i s t o determin e i f surfac e soil s o r groundwate rhav e indee d bee n impacted , an d i f so , wha t i s th e impac t an d potentia l transpor t pathwa yt o th e are a
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Are a 1 0 3 1 Historica l Us e o f th e Lan d Th e firs t settler s t o thi s are a wer e timbe rharvester s wh o i n 185 0 wer e force d t o leav e th e Grantsvill e are a du e t o repeate d India n raid s The yharveste d timbe rfro m Pin e an d Pol e Canyons , deliverin g th e log s t o th e Benso n sawmil l t o th e northwes t o f thi s are a ( Midgly) I n 1860 , du e t o a shortag e o f goo d soi l an d adequat e wate rsupply , th e farmin g communit yo f Tooel e determine d tha t 6 o r8 familie s shoul d mov e t o a n are a nea rPine ' Canyo n tha t ha d veryfertil e soi l an d ampl e wate rfo rirrigatio n Lot s wer e cas t an d th e followin g familie s move d t o th e Pin e Canyo n are a whic h late rbecam e know n a s th e Lincol n Townshi p Archibal d an d Robert Shield s Joh n an d Ada m Smit h Jame s Stee l Mose s Marti n Orso n Prat

t Georg e Marshal l Fro m thi s beginnin g th e are a gre wan d farm s flourishe d t o a tota l o f 25 0 person s b y 195 9 Th e origina l tow n wa s calle d Lak e Vie wbecaus e o f th e beautifu l vie wo f th e Great Sal t Lak e fro m thi s vantag e poin t Afedera l highwa ywa s constructe d t o Tooel e an d wa s name d th e Lincol n Highway , an d i n 190 4 a pos t offic e wa s constructe d i n Lak e Vie w Becaus e o f th e federa l highway , th e post-offic e wa s designate d th e Lincol n Pos t Offic e Th e nam e o f th e communitywa s change d t o Lincol n Th e firs t know n industria l typ e us e o f lan d i n thi s are a wa s th e resul t o f discoverin g a hig h qualitycla ynea rPin e Cree k I n th e lat e 1860' s th e Shield s brothers develope d th e firs t bric k makin g busines s i n Tooel e Count y(Blenthorn ) Durin g th e perio d fro m 190 9 t o 1923 , IS& R constructe d a larg e smelte ro n th e benc h eas t o f Lincol n an d man yme n fro m tow n worke d a t th e smelte rSevera l releas e o f liabilit yagreement s wer e negotiate d abou t thi s tim e wit h loca l farmer s releasin g th e compan yfro m damage s fo ra cas h settlemen t Th e IS& R Compan yals o purchase d severa l farm s creatin g a buffe raroun d th e smelte r(Miller ) Th e farmin g econom yo f th e Lincol n are a decline d a s a resul t o f smelte roperation s an d fro m ove rirrigatio n whic h cause d a buildu p o f alkal i i n th e surfac e soil s Man yfarmer s left th e are a t o fin d bette rsoil , the n i n 192 8 a chai n o f event s occurre d tha t brough t a n en d t o agricultura l productio n bein g th e leadin g us e o f are a land s First , th e valle ywa s greatl yove rgraze d b ylarg e herd s o f shee p an d cattl e brough t t o th e valle yfo rwinte r pasture , whic h almos t completel ydenude d th e land , followe d b ya thre e yea rdrough t Subsequen t wind s create d dus t bow l condition s i n th e Tooel e Valle y(Blenthorn ) 3 2 Previou s Reclamatio n Activit yi n Wor k Are a 1 0 N o reclamatio n activit ywa s conducte d withi n WA1 0 durin g th e Smelte rSit e reclamatio n o rregradm g an d cappin g operation s

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yRepor t Wor k Are a 1 0 3 3 C urren t Lan d Us e o f WA1 0 Curren t us e o f lan d withi n th e WA1 0 are a include s residentia l lot s i n Lincol n Townshi p an d a fe wsurroundin g ranche s wher e cattl e an d a fe whorse s graz e ove rth e fields

. Becaus e of th e hig h alkal i conten t of th e soil , verylittl e produce i s grow n i n WA1 0 A portio n o f WA1 0 whic h lie s mostl ywithi n th e S W 1/ 4 o f th e S W 1/

4 o f Sectio n 1 2 wa s designate d a s a Boy s Ranc h fo rwaywar d boys , i n th e earl yyear s o f Lincol n Thi s ranc h ha s sinc e bee n donate d t o th e Bo yScout s o f Amehc | j-^h o currentl yru n a scou t cam p o th e property

. o n

4. 0 FIEL D SAMPLIN G OBJECTIVE S FO R WA1 0 Th e objectiv e o f fiel d samplin g i n WA1 0 wa s t o determin e i f surfac e soil s hav e bee n impacte d b y smelte roperations , o rb ymigratio n o f material s fro m impacte d area s du e t o win d o rsurfac e wate r 5. 0 SAMPLIN G LOCATION S AN D METHODOLOG Y Sampl e point s wer e establishe d accordin g t o th e gri d patter n an d judgemen t location s a s show n i n th e SA P Thes e point s includ e surfac e soils , drainag e channe l sedimen t samples , residence dust sample s hollo

wste m boring s an d groundwate rsamplin g Thi s repor t summarizes soil , sedimen t and'dus t samplin g complete d t o dat e i n th e wor k area
. 5
. 1 Surfac e Soi l Sample s Samplin g i n Wor k

Are a N o 1 0 wa s limite d t o determinin g th e ns k associate d wit h surficia l soils

. Samplin g of th e surfac e soils , 0-2 " depth , wer e collecte d usin g 5 point composit e sampl e method s o n a gn d patter n an d othe rselecte d location s a s show n i n th e project SAP

. On e o f th e 5 point s wa s randoml yselecte d a s th e aliquo t sampl e at eac h locatio n an d analyze d fo rcompariso n t o th e composite sampl e analysis

. Th e sampl e location s are show n b ysampl e numbe ro n Figur e 3 , an d includ e location s numbere d 150-151,153-157,159 , 162-164 , 166-184

. Sampl e results wil l b e use d fo r inpu t into th e EP Aprepare d baselin e ns k assessmen t 5 2 Sedimen t Sample s Sedimen t gra b sample s wer e collecte d a s a singl e poin t gra b sampl e at soi l depth s o f 0
- 2 " an d 2-6"

. lf(("h e sample s wer e take n i n establishe d stor m drainag e channel s at property boundarie s ai d at point s o f likel yhistori csedimen t depositio n Thes e sampl e location s are show n bynumbe ro n Figur e 3 an d includ e location s numbere d 18 7 -19 7 

# i> 5 3 Residenc e Dus t Samplin g Eiqh t residence s wher e yar d sample s wer e bein g take n wer e als o teste d fo rmeta l conten t i n th e interio rdust of th e hom e Thes e sample s wer e gathere d byutilizin g a

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yRepor t Wor k Are a 1 0 Addendum

No 1, September

2002 Mode l HVS-3 , hig h volum e smal l surfac e sampler , Manufacture d b yth e CS S Company

. Th e locatio n o f thes e home s ar e show n o n Figur e 3 an d ar e numbere d 1- 8 5. 4 Auge rBorin g Sample point 186 is a follow stem auger boring Samples

will be obtained

at depths of 10', 25' and 50' depths Analytical

results from hollow stem borings will be provided

in a separate data summary

report. 5 5 Samplin g Qualit y Fiel d samplin g wa s complete d b yAnderso n Engineerin g Compan yInc. , samplin g crews
. Al l samplin g wa s complete d unde rth e oversigh t o f EPA' s qualit ycontro l contractor , th e Burea u o f Reclamatio n Othe ragenc ypersonnel , includin g th e EP Aals o provide d periodi coversigh t of samplin g activitie s Al l samplin g equipmen t wa s cleane d an d decontaminate d prio rt o eac h sampl e i n accordanc e wit h SO P 1- 9 Th e sampl e identification , sampl e location , samplin g tim e an d samplin g personne l wer e note d i n th e Sit e Logboo k and/o rsampl e lo g sheet

. Composit e sample s wer e collecte d i n accordanc e wit h SO P 5- 1 -Compositin g Soi l Samples

. Sedimen t sample s wer e collecte d accordin g to th e protocol s liste d i n SO P 5. 2

- Soi l Sampling , an d residenc e dust sample s wer e collecte d i n accordanc e wit h SO P 5- 8

- Indoo rDus

t Samplin g 6. 0 RESULTS Result s of th e RI/F S samplin g of WA1 0 are summarize d i n Tabl e 1 an d illustrate d o n Figur e 4

. Lea d an d arseni chav e historicall ybee n th e indicato rmetal s o n th e sit e Th e curren t samplin g even t continue s t o sho wtha t thes e metal s represen t impact s t o soi l whic h mayb e a resul t o f smelte roperation s Thes e two element s are summanze d here

. 6 1 Lead Complet e analytica l result s fro m sample s collecte d are foun d i n Tabl e 1 Lead concentratio n analytica l result s fro m WA1 0 samplin g are summanze d below 6.1. 1 5 - Poin t (Non-residentia l Yard ) Composit e Sample s (0-2 " depth ) - Lead Th e fiv e sampl e location s havin g th e highes t concentration s o f lea d foun d i n WA1 0 composit e sample s are : Locatio n Maximu m #170 1990 mg/k g - P b #174 198 0 mg/kg-P b #16 3

. . . . . . 1200 mg/k g - P b #172 1200 mg/kg-P b #16 7 1100 mg/kg-P b Mea n o f 3 0 sample s 58 3 mg/kg - P b
Atlanti cRichfiel d Company1 2 June

. 200 2f f

IS&R/Car rFor k Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 Addendum

No 1, September

2002 Figure 4 show s th e locatio n an d concentration s o f thes e sampl e points Al l fiv e location s wit h th e highes t P b reading s ar

e i n th e ope n fiel d wes t of th e histori c IS& R tailing s impoundment

. Lincol n resident s hav e indicate d that thi s fiel d wa s periodicall yfloode d a s a resul t o f IS& R dike failure s durin g plan t operations

. Th e sampl e location s wit h th e lowes t concentration s of lea d i n th e 5-poin t composit e sample s are : Locatio n Minimu m #17 5 130mg/kg-P b #17 7

. .. . ... . 140mg/kg-P b #17 6 150mg/kg-P b #18 0

... . 18 0 mg/kg-P b #15 6

. . 200mg/kg-P b Se e Figur

e 4 fo rsampl e location s an d concentrations

. 61 2 Sedimen t Sample s - Lead Th e lea d concentration s i n sedimen t gra b sample s fro m th e drainag e channels , rang e fro m a hig h of 180 0 mg/kg at locatio n #197 , 0- 2 inc h dept h whic h i s locate d withi n th e histori c Dr yCree k channel , no

w use d fo rMiddl

e For k Irrigatio n water , t o a lowconcentratio n valu e of 2 0 mg/kg collecte d fro m locatio n #188 , 0- 2 inc h depth , i n a n irrigatio n pon d locate d o n th e Boy' s Ranch propert yResult

s o f sample s collecte d at 2 t o 6 inc h dept h ha d a hig h o f 160 0 mg/k g at locatio n #189 , locate d i n th e histori c Dr yCree k channe l wes t o

f Lincol n (no

wused fo rMiddl

e For k Irrigatio n water) , an d a lo w concentratio n o

f 3 5 mg/k g a t locatio n #188

. Th e mea n concentratio n fo rlea d foun d i n th e sedimen t sample s collecte d fro m WA1 0 wa s 59 1 mg/kg at th e 0 t o 2 inche s dept h interva l an d 46 2 mg/k g at th e 2 t o 6 inc h dept h interva l Se e Figur e 4 fo rsampl e location s an d concentration s 6.1.3 Residential

Samples

-Lead Residential

sampling

yielded lead results which ranged in value from 12 mg/kg to 1100 mg/kg. The

residential

units with the highest concentrations

are: Yard No. Pb 1872PC (Z2YN) 1100 mg/kg 1711BP (Z4GF) 900 mg/kg 1844 BP (Z1GF) 820 mg/kg The mean of all residential

sampling

(32 points) 477

mg/kg Dust samples taken from home intenors ranged in value from 93 mg/kg to 310 mg/kg, Pb. The

mean of all house dust samples

(8 homes) was 190 mg/kg, Pb.

Atlanti cRichfiel d Compan y1 3 June

. 200 2IS&R/Car rFork Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 Addendu m N o 1 , Septembe r2002 6. 2 Arseni c Arsenic concentration

anl lytical results from WA10 sampling

are summanzed

below 621 5-Point

('fan-residential

Yard) Composite

Samples

(0-2*depth)

- Arsenic Th e fiv e sampl e location s havin g th e highes t concentration s o f arseni cfoun d i n theWAIOare

. Locatio n Maximu m #172

... . 200mg/kg-A s #16 3

.. . 19 0 mg/k g - A s #16 7

. . . 19 0 mg/kg-A s #17 0

.. . . ..17 1 mg/kg-A s #174 17 0 mg/kg-A s Th e mea n o f al l sample s (30 ) 8 1 mg/k g - As Thes e sampl e location s are locate d i n th e ope n fiel d wes t of th e histori c IS& R tailing s impoundment

. Th e sampl e result s demonstratin g th e lowes t concentration s o f arseni ci n th e 5 poin t composit e sample s are Locatio n Minimu m #17 5 2 0 mg/k g - arseni c #176

.. . 2 0 mg/k g - arseni c #17 7 2 1 mg/k g - arseni c #18 0

. 2 1 mg/k g - arseni c #18 3 3 2 mg/kg - arseni c Se e Figur

e 4 fo ra ful l summar

yof sampl e location s associate d Pb/As concentrations

. 6.2 2 Sediment

Samples

- Arsenic Th e arseni cconcentration s foun d at th e 0- 2 inc h leve l i n sedimen t gra b sample s fro m th e drainag e channel s rang e fro m a hig h o f 33 0 mg/kg at location s #197 , t o a lowconcentratio n valu e of 1 4 mg/kg collecte d fro m locatio n #19 3 i n th e ol d Pine Cree k

irrigatio n diversio n channe l Th e mea n concentratio n fo rarseni c foun d i n th e sedimen t collecte d fro m th e 0- 2 inc h dept h o f WA1 0 wa s 8 3 1 mg/kg

. Th e rang e o f concentration s fo rarseni ca t th e 2 t o 6 inc h dept h wa s a hig h o f 21 0 mg/k g a t sampl e locatio n #197 , an d a lo wo f 1 0 mg/k g a t sampl e locatio n #19 3 Th e mea n concentratio n fo rarseni cfoun d i n th e sedimen t collecte d fro m th e 2- 6 inc h dept h o f WA1 0 wa s 71. 5 mg/k g Se e Figur

e 4 fo ra ful l summar

yor " sampl e location s an d concentration s

Atlanti cRichfiel d Company1 4 June , 200 2IS&R/Car rFork Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 Addendum

No 1, September

2002 62.3 Residential

Samples

- Arsenic Residential

sampling

results for arsenic ranged in value from 3 8 mg/kg to 150 mg/kg, with

a mean concentration

of 46 5 mg/kg The residential

units with the highest readings

are' Address 1711BP(Z4GF). 1844BP (Z1GF). 1861BP (Z1GF) As

150 mg/kg 81 mg/kg 65 mg/kg Arsenic in dust samples taken from home mtenors ranged from 10 mg/kg (1861 BP) to 30 mg/kg (2089 PC). The

mean arsenic concentration

of all dust samples from homes (8) was 21 mg/kg.
7. 0 QUALIT

Y CONTRO L (QC ) Th e Dat a Qualit

yObjective (DQO ) Proces s fo rHazardou s Wast e Investigation s wa s followe d a s outline d i n th e Qualit

yAssuranc e Projec

t Pla n (QAPP)

. 7. 1 Fiel d Q C Fiel d Samplin g qualit

ycontro l i s outline d i n th e Qualit yAssuranc e Projec

t Pla n of th e SAP

. Environmenta l measure s an d standard s wer e implemente d throughou t th e samplin g to assure that data was 1 pientificall yvalid , of know n an d acceptabl e quality , an d me t th e establishe d objective s Standar d Operatin g Procedure s (SOPs ) were followe d t o accomplis h thes e parameters

. Th e SOP s whic h are applicabl e t o WA1 0 samplin g are locate d i n Appendi xA

. As a par t o f th e fiel d Q C procedures , blin d duplicat e sample s an d equipmen t blan k sample s wer e collecte d o n fiv e percen t o f th e tota l numbe ro f samples

. 7.1.1 Sample

Designation Individual

samples collected

were examined

and the sample designation

were found to be consistent

and in accordance

with procedures

listed in Section 4 of the SAP. 7.1.2 Sampling

Equipment

Procedures Equipment

utilized to collect aqueous

and soil samples were in strict compliance with Section 5 of the SAP and this equipment

was used and decontaminated

in accordance

with the procedures

listed in SOP numbers

1-7, 1-9. 7 1.3 Sample

Handling

and Analysis Sample logs were kept, listing

every sample collected, the

sampler, date

sample was collected

and conditions

at the time of sampling. These

entnes are in
Atlanti cRichfiel d Compan y 1 5 June , 200 2IS&R/Car rFork Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 Addendum

No 1, September

2002 chronological

order and clearly show the sample identification

number, which includes the sample point and work area The documentation

record tracks each individual sample to a sample log sheet and thence to the chain of custody form that verifies delivery and time of receipt of the sample by the lab, placing

it under their control. 7.1.4 Procedures As part of the field QC procedures, blind

duplicate

samples and equipment

blank samples were collected on a five percent frequency

Two sample splits were taken at sample points 164 and 172 in WA10 Custody

of these samples were transferred

to the Bureau of Reclamation, thence

to Amencan

West Analytical Laboratones

(AWAL) for analysis. 715 WA10 Field Duplicate

Results Samples referred to as field duplicates

were collected at 5%of the sample locations (5%refers

to the overall number of sample locations and may not necessanly

correspond with

individual

work areas). Samples

were collected to determine

the heterogenity

of the media tested and the reproducibility

of results Samples were collected by excavating

soil with a large spoon and placing it into a mixing bowl. The

sample was then mixed with a spoon. Samok

-'jars were filled by placing alternating

spoonfuls

of sample into each of the jf>rs Legitimate vanabilities

within the media, such

as cohesion, moisture

and gradation

nullify the ability to reproduce

results or confirm analytical

results. The

duplicate samples do provide a rough check on field collection

and sample labeling and transport procedures. Field duplicate

samples were collected at locations 156,168,172

and 182 and at residential

locations 1047 BP and 2231 PC Analytical

results of these field QC duplicate samples indicate that 5 of the 144 analytes compared

did not pass the acceptance

catena of *35 RPD These deviations

are asfollowsSample
168 172 172 182 1047 Blue Peak Analyte

Sodium Sodium Mercury Antimony Antimony Value

128 72 1.07 1.2 03 Duplicate

Value 649 110 0643 18 0493 RPD

654 -418 49.9 -40 -48.7

Atlanti c Richfiel d Company 1 6 June , 200 2IS&R/Car rFork Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0

x Addendum

No 1, September

2002 Although these results exceeded

the project RPD of 35%the results do not raise a concern since the sample results are not neargenenc

screening

levels for mdustnal/recreational

or residential

scenarios

provided in the EPApublication: Supplemental

Guidance

for Developing

Soil Screening

Levels forSuperfund Sites (EPA, March, 2001). 7.1.6 WA10 Equipment

Blank Results Four equipment

blank samples were collected and analyzed in accordance

with the Quality Assurance

Project Plan. The

only constituent

which fell outside of acceptance

criteria (*CRQL) was sodium, in

samples 156 and 168(15 mg/Land 174 mg/L, compared, with

the CRQLof 5 mg/L). 7. 2 Laborator

yQ C Dat a Che m Laboratories , In c(DCL ) performe d al l laborator ywor k fo rWA10

. DC L i s a NELA P (Nationa l Environmenta l Laborator yAccreditatio n Program ) approve d laborator y an d i s on e o f onl ya fe wlaboratorie s currentl yoperatin g a s bot h a n organi can d inorgani cCL P facility

. Genera l qualit

ycontro l procedure s fo rDCL , Inc

. ar e liste d i n Appendi xB

. Analytical results of lab matrix duplicates, matnx

spike recovery, matrix

spike duplicates and performance

evaluation

for WA10 are shown on Table 1. 721 WA10

Laboratory

Matnx Spike Recovery

Results Matnx spike recovery results show that, 37 of the 226 analytes tested for spike recovery fall outside of the general acceptance

cntena for soils of 65 -135% recovery, however, for

23 of these analytes, the

indigenous

sample concentration for the analyte is greater than 4 times the spike concentration;

therefore, the results are not indicative

of method perfomance. The

following table indicates the range in percent of spike recovery for remaining

14 analytes:

Percent Recovery 0-40 41-65 135 - 150 >150 Positive Recovery 7 5 1 1

Atlanti cRichfiel d Company 1 7 June , 200 2IS&R/Car rFork Remedia l Investigatio n Dat a Summar

yRepor t Wor k Are a 1 0 Addendum

No 1, September

2002 7.2 2 WA10 Laboratory

Matrix Duplicates

Results Lab results for matrix duplicates

indicate that only 10 out of 269 duplicate

analyte tests fell outside of the general acceptance

cntena of*35%RPD

(or ±1xMDLfor samples having concentrations

<> SxMDL) None of the 10 analytes had RPDs greater than 50%and

none of them had concentrations

near the EPAindustrial generic screening

levels. 7.23 WA10

Laboratory

Matrix Spike Duplicates Lab results formatnx

spike duplicates

show that only one of the 228 analvtes fell outside of the general acceptance

cntena of s35%RPD

Antimony

had an RPD of 37%for sample number 172. 8. 0 REFERENCE S Anderson , 1986 , As-buil t Constructio n Documents , prepare d fo rAnacond a Mineral s Compan y byAnderso n Engineerin g Company

. Anderson , 2000 , CarrFor k Maintenanc

e Operation s Final Repor t b yAnderso n Engineerin g Compan y Arnol d Porter , ARC O Environmental Remediation , L. L C.' s Comment s o n EPA' s Proposed Rule t o include IS& R Sit

e nea rTooele , Uta h o n th e National List , Jul y22,1999

. Blenthom , Ouida , Histor yo f Tooel e County , pp
. 360-363

. EPA , 1999 , MR S Documentatio n Record , Februar y24,199 9 EPA, March, Supplemental Guidance

for Developing

Soil Screening

Levels for Superfund

Sites, 2001. Jackson , Dan , 1979 , Car rFork

. Ne w mine , olddistncti n Engmeenn g & Minin g Journal , Januar

y reprin t p p A1-A8

. JBR , 1986

. Reclamation/Stabilizatio n Plan , Anacond a Mineral s Company , Car rFor k an d IS& R Tooel e Smelter , Tooel e Valley , Utah , fo rAnacond a Mineral s Compan y JBR, 1990, Carr

Fork Reclamation

Project Water Quality, Waterfall

Erosion, Revegetation, Photo Plots, for

Anaconda

Minerals

Company, April

5,1990. Midgly, Early

Exploration, pp. 16-17. Miller , Mining , Smeltin g an d Railroadin g i n Tooel e County , pp
. 63 , 71-79

. SAP , 2001 , IS& R Remedia l Investigatio n byAnderso n Engineerin g Compan y UDEQ , 1997 , Analytica l Result s Report , Anacond a Copper

- Car rFork , Hele n L Sadi k - Macdonal d

Atlanti cRichfiel d Company 1 8 June , 200 2 

# < PDAT E PREPARE D 2/17/0 4 ATLANTI C RICHFIEL D COMPAN Y 1S& R Remedia l Investigatio n Lincol n Residentia l Samplin g prepare d b y Anderso n Engineerin g Compan y In c

I D

LO T 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 8 1 7 1 8 19 a 19 b 2 0
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' S 3 34 55 5 6 5 7 5 6 5 9 6 0 8 1 62 63 6 4 1 a s 6 6 97 6 8 e g
7 1 7 2 7 3 74 EP A LOT 1 2 3 8 7 6 4 5 NAM E Georg e T & Jo e Marian o Rlchar t K

. & Shaun a Warne r .eAnnFretwef l War yBtodtshft

T KurtAIIows v DaM n A , Jac-kao n Euoen a & Manone freltiga m WBlvln J Fb h EOdto Shear

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a Dewsnu O ona W P a Chitao n Kueate r ASSESSO R PARCE L NUMBE R 323- 3 3-2 1 2 9 3-1&-1 4 3-21- 6 3-19-1 1 3-17-0 3 3-21-3 9
1 1 28- 1 10-9-H- 3 1O&-H- 4 3-19-5 3-2 1 7 10-&^-5 10-9-H-6 10-&44-7 10-6-H- 8 10-9-H-2 13-83-103

. ^ 3»1U-I3 3-19-1 0 3-21^ 5 1O-W J 10-44- 1 3-21-3 5

, 3-21-6 32 1 3 4 10-44-5 3-2 1 2 4 3/21/194 1 J l 3- 1 00-4 3-18-1 4

. 3-16-4 13-100- 3

r3-18-1 7
>1&.1 3 3-18-1 0 13-63*10 4 3-17-30 3-17-4 2 3-17-4 3-21*4 0 3-21-3 B 3-21-4 2 3*1-6 1 3-21-4 B 3-21-06 4 10-44- 4 10-t4-3 1 1 2840 2 lo-no- a 3-21-04 3 3-21-04 5 3-21*05 8 3-21-08 2 3-21-01 0 3-21-009 3-2 1 1 7 3-2 1 1 7 3-21-1 1 3-10-1 2 3-1&-2 ^-18-003 3^31-00 3 3-32-2 0 10-11& 5 341-6 3-1 7 7 3*17- 6 3-17-40 3-21-2 2 PHYSICA L ADDRES S

1047B(uaPaakDnv e 171 1 Blu e Pea k

Drtw i 184 4 Blu e Pea k

Dnv o 222 3 E Pin e Crayo n R ( 208 9 Pin e Canyo n R d 200 5 Cnurchwoo

d Driv e 166 1 Pin e Canyo n R d 1872 Pin e Canyo n R d 215 1 E Pin e Canyo n R ( 204 9 E Pin e Canyo n R e 203 1 E Pin e Canyo n R e 189 4 Blu e Pea k

Dm * 158 9 Blu e Pea k

Dnv s 201 5 Plr wCanyo n R d 200 7 E Pin e Canyo n R e 108 1 Pir wCanyo n Rd B5 8 Crturcnww

d Drtv o 20 1 2 Churcfiwco d Drive 204 8 Churcnwood Drive 185 0 Blu e Poak pflvp 1B3 2 Blu e Pea k

Driv e 867 Blu e Peo k

Drtv a 191 4 WoOca rLnn

o S3 3 WaUca rLano 049 Pin e Canyo n Rd B5 4 Pin e Canvo n rea

d 192 1 E Pin e Canyo n Roa c 191 8 E Pin e Canyo n Roa c 04 9 Blu a Pea k

O r 191 5 E Pin e Canyo n Roa< 2389 Churcrwood Drtv

o 2368 Chwchwood Drt

w 32 0 ChufCh*oo

d Driv e 31 1 ChurchMoo

d Drt w 2P 1 Churchwoo

d Drtv o 227 0 Churchwoof l Ortr

e 2210Chur(*MoodDrW

a 16 0 Churctiwood Driv

e 2060 N Churcnwoo

d Dn V 203 3 N Churcnwoo

d Dnv J33 Chutcrrwood Ortv » )1 1 Cnurchwoo

d Dnv o 17 5 Pine Canyo n Roa

d 88 1 Pine Canyo n Road 10 3 Pin o Canyo n Roa

d BOS Pine Canvo n Hoa

d 63 2 Pine Canyo n Roa

d 19 6 Pin e Canyo n Roa

d 16 5 Walke rLan e 970 Walte rLan e 21 1 Pm a Canyo n Road IB S Pin o Canyo n Roa

d 13 2 BU M Pea h Driv

e \0 7 N Blue Peak

Drt w 785 Blu a Paa k

Driv e 8 1 Blu e Paa k

Drtv o 4 5 Blu e Peak Drtv o 39 Blu a Pea k

Drtv o 553 Blu e Paa k

Drtv o 2 7 Blu e Pea* Driv

e 625 Blue Pea k

Driv e 1 8 Blu e Pea k

Drtv B 62 Bb e Pea k

Drtv a 7 4 Blu a Poa k

Drfva 15 5 Efltto n Roa

d 3EricsonRoa d OgeCnurchuoodD r 12 4 Pin e Canyo n Roa

d 83 Pin e Canyo n Road 5 3 E Pin e Canyo n Roa

c 72 3 Plr wCanyo n Roa

d 90 Pin e Canyo n Road PHON E

(435 ) 882-827 2 (435 ) 882-363 ' (435 ) 86 2 242

. (435 ) 882-688

. (435168 2 203 2 (435 ) B82-263 I (435 ) 682-316 1 (435 ) 643-56 ? (435 ) 843-706 1 (4351&43-5194 (435 } 882-054 ! (435 1 86 2 321 ! (435)662-662 1 (435)843-71 3 (435 ) &43-B58 S
(435)633-011 1 (435 ) 882-518 9 J43S) &02-43I K (435)682-14 K ca n Walker

s (435)66 2 146

2 (435) 662473 ( (435)88 2 7564 435-682-810 9 (435 ) 88 2 573 S (435)68 2 1450 <43S)B8XJ49 8 |433)&32^M» 1 l435)0a&lSt i 435482-782 3 435-W3-S&42 601-631-683

2

. 435-662-532 7 (434)652-7572 '435] 643-755 2 435-643-6000 80 1 240-404 8 435>-&a2-660f l 435)843-111 8 435 ) 882-1692 435-843447 8 435168 2 123 0 435 ) 830-733

7 801)978-2866 7 435)682-764 1 435 ) 862-2474

- 435)88 2 149

3 435 ) S82-9074 435) 662-482 9 435 ) 6334907

435-682-5187 435)682-623 7 435)862-337 6 435 ) 682-33/

y 435 ) 882-368 9 801)706-3775 435)88 2 171 7 501)955-4672 o m a t hous e 139-643-160 1

35 ) 843-73B2 5-88 2 771 3 35)68^462 8 LO T

REQUIRIN G ADDITIONA L SAMPLIN G N/ A N/ A W A N/ A N/ A N/ A N/ A N/ A 7 7 7 7 7 1 2 1 2 2 1

' 2 1 1 0 1 0

, r2 2 1 2 2 1 2 1 2 1 2 1 2 1 2 6 2 5 2 3 2 8 M A*

. NA

—MAT - NA HA' f NA

. N A NA NA NA NA NA NA NA NA HA- , . N A NA HA NA NA NA

_ NA NA NA NA NA NA

- N A NA NA NA NA NA NA NA NA NA NA NA NA NA SA M PU N Q

DAT E SAMPLE D 4/2/200 2 4/2/200 2 4/4/200 2 4/3/200. 2 4/3/2002 4/5/200 2 4/2/200 2 4/3/ 2 00 2 8/24/200 3 &T24/2Q0 3 6/24/200 3 6/24/200 3 - 6/24/2003

. &/30/200 3 &30/200 3 7/31/2003 7/31/2003 7/15J200 3 7/31/200 3 7/2W2003 7/15/200 3 7/29/2003 7/31/2003 7/31/200 3 7/202003

- 7/29/2003 8/11/200 3 8/11/200 3 8/11/200 3 fl/20/2003 12/2/2003

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'1/23/200 4 1/2S/2Q0 4

1/2W200 4 12W200 3 12/4/2003

1/29C00 4

1 "

1/2SQ00 4 RESULT S

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# Colo r Chart(s )

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images

. T o vie wth e actua l images , pleas e contac t th e Superfun d Record s Cente r a t (303 ) 312-6473

.DAT E PREPARE D 6/10/0 4 ATLANTI C RICHFIEL D COMPAN Y IS& R Remedia l Investigatio n Lincol n Residentia l Samplin g prepare d b yAnderso n Engineerin g Compan yIn c

I D

LO T 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 19a 19 b 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 28 a 28 b 2 9 3 0 3 1 3 2 3 3 34 3 5 3 5 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 0 6 1 6 2 6 3 6 4 6 5 6 6 6 7 6 8 6 9 7 0 7 1 7 2 7 3 7 4 PHYSICA L ADDRES S 104 7 Blu e Pea k

Dnv e 171 1 Blu e Pea k

Dnv e 184 4 Blu e Pea k

Drw e 222 3 E Pin e Cnayo n R d 208 9 Pin e Canyo n R d 200 5 Churchwoo d Dnv e 166 1 Pin e Canyo n R d 1872 Pin e Canyo n R d 215 1 E Pln a Canyo n R d 204 9 E Pin e Canyo n R d 203 1 E Pin e Canyo n R d 189 4 Blu e Pea k

Dnv e 158 9 Blu e Pea k

Dnv e 201 5 Pin e Canyo n R d 200 7 E Pin e Canyo n R d 198 1 Pin e Canyo n R d 195 8 Churchwoo d Driv e 201 2 Churchwoo d Driv e 204 8 Churchwco d Dnve 185 6 Blu e Pea k

Driv e 187 9 Blu e Pea k

Dnv e 183 2 Blu e Pea k

Dnve 186 7 Blu e Pea k

Dnve 191 4 Walke rLan e 1938 Welke rLan e 194 9 Pin e Canyo n R d 195 4 Pin e Canyo n roa d 192 1 E Pin e Canyo n Roa d 191 8 E Pin e Canyo n Roa d 184 9 Blu e Pea k

D r 191 5 E Pin e Canyo n Roa c 238 9 Churchwoo d Drive 238 8 Churchwoo d Dnve 232 0 Churchwoo d Driv e 23 1 1 Churchwoo d Drive 229 1 Churchwoo d Driv e 227 0 Churchwoo d Driv e 221 0 Churchwoo d Driv e 219 0 Churchwoo d Driv e 206 0 N Churchwoo d Dnv E 203 3 N Churchwoo d Dnv e 203 3 Churchwoo d Driv e 20 1 1 Churchwoo d Drive 187 5 Pin e Canyo n Roa d 188 1 Pin e Canyo n Roa d 190 3 Pin e Cenyo n Roa d 190 9 Pin e Canyo n Roa d 1832 Pin e Canyo n Roa d 189 8 Pin e Canyo n Roa d 186 5 Walke rLan e 187 0 Walke rLan o 22 1 1 Pin e Canyo n Roa d 228 9 Pin e Canyo n Roa d 183 2 Blu e Pea k

Dnv e 1807 N Blu e Pea k

Dnve 178 5 Blu e Pea k

Dnv e 178 1 Blu e Pea k

Dnv e 1645 Blu e Pea k

Dnve 1 62 9 Blu o Pea k

Driv e 155 3 Blu e Pea k

Dnv e 52 7 Blu e Pea k

Dnve 51 9 Blu e Pea k

Dnv e 15 1 6 Blu e Pea k

Dnve 148 2 Blu e Pea k

Onv a 67 4 Blu e Pea k

Onv a 95 5 Encso n Roa d r 0 3 Encso n Roa d 209 8 Churchwoo d D r 182 4 Pin e Canyo n Roa d 80 6 Pin e Canyo n Roa d 178 3 Pin e Canyo n Roa d 75 3 E Pin e Canyo n Roa d 72 3 Pin e Canyo n Roa d 179 0 Pin e Canyo n Roa d LOT REQUIRIN G ADDITIONA L SAMPLIN G N/ A N/ A N/ A N/ A N/ A N/ A N/ A N/ A 7 7 7 7 7 1 2 1 2 2 1 2 1 1 0 1 0 2 2 1 2 1 2 2 1 2 1 2 1 2 1 2 1 2 6 2 5 2 3 2 8 N A NA N A NA NA NA NA N A N A N A NA NA NA NA N A N A N A NA NA NA NA N A NA N A NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA SAMPLIN G

DAT E SAMPLE D 4/2/200 2 4/2/200 2 4/4/200 2 4/3/200 2 4/3/200 2 4/5/200 2 4/2/200 2 4/3/200 2 6/24/200 3 6/24/200 3 6/24/200 3 6/24/200 3 6/24/200 3 6/30/200 3 6/30/200 3 7/31/200 3 7/31/200 3 7/15/200 3 7/31/200 3 7/29/200 3 7/17/200 3 7/15/200 3 7/29/200 3 7/31/200 3 7/31/200 3 7/29/200 3 7/29/200 3 8/11/200 3 8/11/200 3 8/11/200 3 8/20/200 3 12/2/200 3 3/29/200 4 12/2/200 3 12/11/200 3 12/11/200 3 12/11/200 3 4/2/200 4 12/11/200 3 3/29/200 4 3/30/200 4 12/2/200 3 12/2/200 3 12/4/200 3 12/4/200 3 12/4/200 3 3/30/200 4 1/29/200 4 12/4/200 3 6/1/200 4 3/23/200 4 3/30/200 4 3/29/200 4 1/29/200 4 1/29/200 4 3/29/200 4 3/23/200 4 1/29/200 4 3/29/200 4 12/4/200 3 12/4/200 3 3/23/200 4 3/23/200 4 3/29/200 4 3/23/200 4 3/29/200 4 1/29/200 4 3/30/200 4 1/29/2004 4/2/200 4 3/23/200 4 3/23/200 4 1/29/200 4 RESULT S

Z 1 27 0 55 0 82 0 37 0 65 0 27 0 64 0 55 0 21 1 59 9 26 4 114 0 19 4 16 7 23 9 6 1 182 38 9 18 2 38 5 181 0 1130 92 7 14 9 81 9 123 0 23 9 98 7 40 9 23 0 43 8 26 6 12 5 6 8 22 9 26 0 48 0 12 9 30 1 24 3 22 3 25 2 54 8 59 6 49 4 28 5 32 0 122 20 1 36 9 38 8 28 0 5 7 188 0 25 3 62 9 143 0 101 0 64 7 25 1 16 4 19 0 17 6 21 1 204 0 X 9 1 40 4 7 6 21 2 29 0 5 6 14 6 59 0 Z2 12 0 47 0 53 0 34 0 80 0 13 0 64 0 110 0 31 2 50 3 24 6 81 8 14 7 15 8 14 5 7 2 N O 38 0 24 2 63 3 67 4 22 2 79 8 21 5 45 8 35 0 9 4 47 6 26 6 18 2 10 7 24 2 11 9 8 8 17 8 27 3 13 5 17 2 24 7 28 9 7 6 63 2 40 7 37 7 73 5 22 0 26 0 37 9 38 2 31 5 41 2 26 9 122 30 0 37 7 76 4 70 8 63 1 53 2 23 0 19 6 21 3 19 3 17 6 173 0 X 9 4 62 7 24 5 22 6 10 1 28 2 16 6 32 2 Z 3 14 0 22 0 58 0 19 0 66 0 34 0 60 0 54 0 27 6 52 2 N D 33 9 21 4 N D N D 12 2 37 5 57 2 40 7 75 4 155 0 58 1 77 4 544 58 8 46 6 353 31 0 23 3 21 7 67 1 26 7 19 1 9 3 24 9 23 7 26 7 133 23 3 40 9 35 6 51 7 30 3 35 5 69 8 32 1 34 6 11 6 36 4 40 3 44 7 20 9 9 5 42 0 39 4 27 6 100 0 60 2 42 5 26 7 16 7 20 9 19 0 41 4 140 0 X 9 8 32 7 7 7 35 2 22 5 14 2 26 7 40 0 Z 4 2 4 90 0 25 0 84 0 61 0 72 0 40 0 51 2 33 9 61 0 15 2 20 1 N D 6 0 39 8 40 2

102 0 101 0 101 0 30 3 185 68 7 71 2 29 7 73 9 24 6 29 0 14 1 36 3 24 8 7 3 29 8

52 2 56 7 22 6 43 0

21 4 35 3 34 1 35 6 27 6 340 35 4 90 4 1170 40 5 44 2 28 2 14 7 13 4 32 0 97 5 X 17 4 64 21 3 25 7 102 13 7 11 5 17 9 Z 5 1 2

30 2

84 6

79 6 43 7

25 7 18 0 7 5

59 7

25 7 32 9 44 0 27 4

53 0 41 7 5 0

47 6

138 26 9 X

40 2 12 4 21 4 100 2 6

49 4

12 1 14 4

37 2

48 2

15 6

X

9 0 17 9 Z M 139 43 0 64 3 28 8 73 8 338 65 0 648 26 6 53 4 28 3 72 7 17 7 14 3 160 7 9 20 2 43 5 27 7 40 2 59 1 1180 73 6 8/ / 30 3 51 3 68 3 22 9 65 6 49 4 32 8 34 2 40 5 25 5 18 4 10 3 22 4 21 9 23 9 18 3 26 0 31 4 29 4 46 7 48 4 38 9 58 9 27 5 30 9 21 8 32 6 37 3 37 5 25 9 9 1 69 4 35 9 51 8 107 7 74 8 50 2 33 3 20 2 190 165 27 8 1536 X 11 4 36 5 138 25 2 16 6 154 17 4 37 3 WEIGHTE D

Z 1 27 0 55 0 82 0 37 0 65 0 27 0 640 55 0 21 1 59 9 26 4 114 0 194 16 7 23 9 6 1 18 2 38 9 18 2 38 6 181 0 113 0 92 7 14 9 81 9 123 0 23 9 98 7 40 9 23 0 43 6 26 6 12 5 8 8 22 9 26 0 48 0 12 9 30 1 24 3 22 3 25 2 54 8 59 6 49 4 28 5 32 0 122 20 1 36 9 38 8 28 0 5 7 188 0 25 3 62 9 143 0 101 0 64 7 25 1 16 4 19 0 17 6 21 1 204 0 X 9 1 40 4 7 6 21 2 29 0 5 6 14 6 59 0 22

12 0 47 0 53 0 34 0 80 0 130 64 0 110 0 31 2 50 3 24 6 81 8 14 7 15 8 14 5 7 2 5 0 38 0 24 2 63 3 67 4 22 2 79 8 21 5 45 8 35 0 9 4 47 6 26 6 18 2 107 24 2 11 9 8 8 17 8 27 3 13 5 172 24 7 28 9 7 6 63 2 40 7 37 7 73 5 22 0 26 0 37 9 38 2 31 5 412 26 9 12 2 30 0 37 7 76 4 70 8 63 1 53 2 23 0 19 6 21 3 19 3 17 6 173 0 X 9 4 62 7 24 5 22 6 10 1 28 2 166 32 2 Z 3 14 0 22 0 58 0 190 66 0 34 0 60 0 54 0 27 6 52 2 4 5 33 9 21 4 4 7 6 5 12 2 37 5 57 2 40 7 75 4 155 0 58 1 77 4 54 4 58 8 46 6 35 3 31 0 23 3 21 7 67 1 26 7 19 1 9 3 24 9 23 7 26 7 13 3 23 3 40 9 35 6 51 7 30 3 35 5 69 8 32 1 34 6 11 6 36 4 40 3 44 7 20 9 9 5 42 0 39 4 27 6 100 0 60 2 42 5 26 7 167 20 9 19 0 41 4 1400 X 9 8 32 7 7 7 35 2 22 5 14 2 26 7 40 0 2 4

2 4 90 0 25 0 84 0 61 0 72 0 40 0 51 2 33 9 61 0 152 20 1 5 0 6 0 39 8 40 2

102 0 101 0 101 0 30 3 185 66 7 71 2 29 7 73 9 24 6 29 0 14 1 36 3 24 8 7 3 29 8

52 2 56 7 22 6 43 0

21 4 35 3 34 1 35 6 27 6 34 0 35 4 90 4 117 0 40 5 44 2 28 2 14 7 13 4 32 0 97 5 X 174 64 21 3 25 7 10 2 13 7 11 5 17 9 2 5 1 2

30 2

84 6

79 6 43 7

25 7 18 0 7 5

59 7

25 7 32 9 44 0 27 4

53 0 41 7 5 0

47 6

138 26 9 X

40 2 12 4 21 4 10 0 2 6

49 4

12 , 14 4

37 2

48 2

15 6

X

9 0 17 9 ZW M 15 1 47 5 58 1 28 8 72 9 29 5 634 57 6 26 3 588 28 7 78 4 18 7 16 9 21 6 6 7 32 4 39 6 19 2 40 2 68 7 88 6 97 4 342 30 4 75 2 69 9 26 0 80 7 49 4 39 2 55 3 43 3 25 5 25 7 11 9 17 9 24 3 20 7 15 4 26 2 34 1 33 1 35 1 50 6 44 6 51 2 27 9 30 9 16 4 31 0 36 5 39 7 25 7 9 5 61 2 34 0 72 4 101 7 71 4 48 5 37 6 254 17 3 18 5 28 2 1620 ultima 14 5 34 1 13 7 27 1 14 7 16 9 23 9 37 9

1st Roun d 2n d Roun d 3rd Roun d 4t h Roun d 5t h Roun d 6t h Roun d Fina l Roun d

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Retur n Reclep

t Fe e (Endorsement Required ) Restricte d Deliver

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. CURLEY , JR . COUNSE L FO R ATLANTI C RICHFIELD COMPAN Y HOLLAN D & HART , L.L.P . P.O
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X 874 9 DENVER , C O 80201-874 9 P S For m 3100 , Jun e 200 2 So o Revers e fo r Instruction s