## DRAF T

VOLUM E I V APPENDIXE S 37579

8



## TAILING S DISPOSA L ARE A REMEDIA L INVESTIGATIO N

REPORT
, CALIFORNI A GULC H SITE
, LEADVILLE
, COLORAD O

Prepared fo r ASARCO
, In c 101 9 Eight h Street
, Suit e 30 4 A Golden
, C O 8040 1 Februar y 199 3 Distribute d fo r public commen t Jun e 199 3 

# Woodward-Clyd e Woodward-Clyd e Consultant s 458 2 Sout h Ulste r Stree t Stanfor d Plac e 3 , Suit e 100 0 Denver
, Colorad o 8023 7 22909 C T200 1

### VOLUME I I TABLE O F CONTENT S 

### APPENDI X A 

### APPENDI X B APPENDI X C APPENDI X D APPENDI X E APPENDI X F APPENDI X G MASTE R

SAMPL E LIS T SURFAC E WATE R TAILING S GEOCHEMISTR Y 

### DRILLIN G LOG S AN D GEOTECHNICA

L TESTIN G RESULT S 

### GROUN D WATE R TOXICOLOGICA L PROFILES
, INTERPRETATION

O F ASSES S OUTPUT
, ASSES S OUTPU T SUMMAR Y OF TH E CHEMICA L DAT A QUALIT Y 

### ASSURANCE PROCEDURE S

22909C-22327/R22-II.T

C 01-28-93(9:32pm)/RPT/1 6 -1

-

### APPENDI X E GROUNDWATE R

22909C-22327/R22.T

S 12-23-92(9:2Spm)/RPT/1 0

### APACH E TAILING S IMPOUNDMEN TMonitorin

g Wel l I D AP1TMW 1 AP1TMW 2 AP1TMW 3 AP1TMW 7 AP1TMW 8 AP1TMW 9 AP1TMW1 0 AP2TMW 1 Developmen t Dat e 10/9/9 1 10/4/9 1 10/7-8/9 1 10/16/9 1 11/21/9 1 11/21-26/9 1 11/21/9 1 11/21/9 1 Developmen t Metho d

4 " Pum p 4 " Pum p 4 " Pum p 4 " Pum p N / A Disposabl e Baile r N /A N / A MONITO F ***^*"*^^"^

B srr^ g **^ g Initia l Wate r Leve l Fro m T o p o f PV C \ (ft ) 12.3 8 3.3 4 2.47 62.9 6 Dr y 19.4 1 Dr y Dr y IIN G WEL L I Volum e Purge d (gal ) 88. 8 85. 8 151. 8 140. 2 N /A 16. 5 N /A N / A DEVELOPM

E Casin g Volume s Purge d
10. 4 10. 3 11. 4 14. 8 N /A 10. 6 N / A N/A f I E N T DAT A S Purgin g Tim e (min ) 89. 0 292. 0 210. 0 39. 0 N /A 6 6 mi n ove r 4 days N / A fj/ A JMMAR Y " • Estimate d Productio n (gpm) 1. 0 0.3 0. 7 3. 6 N / A
• = 0.0 1 N / A N / A P H

1 (st d units ) 5.6 8 6.7 2 5.8 7 7.26 N / A 6.2 9 N / A N / A . • •• • , , = = Specifi c Conductivity 1 (jumhos/cm ) 2,92 6 90 8 1,52 0 43 9 N /A 6,72 0 N /A N / A — —

— - Temperature 1 (°C ) 11. 6 9. 2 10. 5 5.9 N /A6. 5 N / A N / A

1 T h e reporte d pH
, specifi c conductivit y an d temperatur e value s wer e measure d a t th e conclusio n o f wel l development

...

„ I V =. . '" , Monitorin g Wel l I D AP1TMW 1 AP1TMW 2 AP1TMW 3 AP1TMW 7 AP1TMW 8 AP1TMW 9 AP1TMW1 0 AP2TMW 1 MONITORIN G WEL L SAMPLIN G DAT A SUMMAR Y Sampl e 

### Dat e 11/21/9 1 11/21/9 1 11/21/9 1 11/22/9 1 11/21/9 1 11/27/9 1 11/21/9 1 11/21/9 1 Samplin g



### Metho d

2 " Grundfo s 2 " Grundfo s 2 " Grundfo s 2 " Grundfo s N /A 

### Disposabl e 

### Baile r N / A N /A Initia l

Wate r 

### Leve l Fro m T o p o f PV C (ft) 11.9 4 2.6 9 2.5 6 61.9 8 Dr y 19.05 Dr y Dr y 

### Volum e Purge d 

### (gal ) 2 8 2 7 4 0 3 4 N /A 6 N / A N / A Casin g 

### Volume s Purge d
3. 0 3. 0 2. 4 3. 4 N /A 1. 9 N / A N / A — P H 1 

### (st d units ) 5.5 0 6.4 9 7.0 7 7.2 7 N / A 6.1 5 N / A N /A 

### Specifi c Conductivity 1 

### (//mhos/cm ) 1,72 0 82 7 523 44 1 N / A 6,58 0 N / A N /A 

### Temperature 1



### (°C ) 8.4 7. 0 8. 0 4. 3 N /A 7. 4 N / A N / A 

### reporte d pH
, specifi c conductivit y an d temperatur e wer e measure d a t th e tim e o f sampl e collection

.Monitorin

g Wel l I D CZ1TMW 6 AP1TMW1
AP1TMW 2 AP1TMW 3 AP1TMW 7
AP1TMW 8 AP1TMW 9

AP1TMW1 0 AP2TMW 1 GROUNDWATE R

QUALIT i Sampl e I D L-CZ1TMW06-03-9 1

111 6 L-CZ1TMW06-04-91111 6 L-AP1TMW01-01-91112 1 L-AP1TMW01-02-91112 1 L-AP1TMW01-MS-91112 1 L-AP1TMW02-01-91112 1 L-AP1TMW03-01-91112 1 L-AP1TMW03-04-91112 1 L

- A P 1 T M W07- 0 1 - 9 1 1 1 2 2 L-AP1 TMW07-02-9 1 1 1 2 2 L-AP1TMW07-MS-9 1

1 1 2 2 N / A L-AP1TMW09-01-9 1

1 12 7 L-AP1TMW09-02-9 1

112 7 L-AP1TMW09-MS-9 1

1 12 7 L-AP1TMW09-03-9 1

1 1 2 7 N / A N / A f

SAMPLE S C 

### Sampl e Dat e 11/16/9 1 11/16/9 1 11/21/9 1 11/21/9 1 11/21/9 1 11/21/9 1 11/21/9 1 11/21/9 1 11/22/9 1 11/22/9 1 11/22/9 1 N / A 1 1/27/9 1 11/27/9 1 11/27/9 1 11/27/9 1 N /A N /A 3LLECTE D

= 

### Sampl e Tim e 184 0 180 0 121 5 121 5 121 5 171 5 143 0 150 0 100 0 100 0 100 0 N / A 133 0 133 0 1330 123 0 N /A N / A ^^^T^^^^^^^^^^^^^^^T^^^5SI 5 

### Typ e o f Sampl e Fiel d Blan k Equipmen t Rinsat e Primary Duplicat e Matri x Spik e Primar y Primary Equipmen t Rinsat e Primar y Duplicat e Matri x Spik e N / A Primary Duplicat e Matri x Spik e Fiel d Blan k N / A N / AMonitorin

g Wel l I D AP1TMW 1

AP1TMW 2 MONITORIN

G Measurement Dat e 10/09/9 1 10/18/9 1 11/21/9 1 01/17/9 2 02/18/9 2 03/ 1 6/9 2 04/13/9 2 05/18/9 2 06/ 1 5/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 10/04/9 1 10/05/9 1 11/21/9 1 01/15/9 2 02/18/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 WEL

L WATE R L E ^ » j Measurement Tim e 104 9 163 1 112 5 124 5 171 0 143 3 090 4 11 3 0 145 7 1 64 2 171 4

, 155 5 123 6 1205 085 5 163 0 160 0 172 5 140 3 085 7 114 0 143 0 162 4 173 9 1542 122 9 V E L SUMMAR Y r5grrr?^*^r*Ts*TBr*^s^T5

S Dept h t o Wate r (ft )
12.3 8 12.4 0 11.9 4 12.2 7 12.0 5 12.0 3 11.7 2 11.5 6 11.6 1 11.4 4 11.9 3 12.1 9 12.5 5 3.3 4 3.2 2 2.6 9 FROZE N FROZE N FROZE N FROZE N 3.2 1 3.2 3 2.8 4 2.8 9 3.5 0 3.3 9 ••IMHMI^MMMiMMCBBMMMiMMMBHH ^ Groundwate r Elevatio n (ft ) 10031.7 8 10031.7 6 10032.2 2 10031.8 9 10032.1 1 10032.1 3 10032.4 4 10032.6 0 10032.5 5 10032.7 2 10032.23 10031.9 7 10031.61 10037.8 0 10037.9 2 10038.4 5 FROZEN FROZE N FROZE N FROZEN 10037.9 3 10037.9 1 10038.3 0 10038.25 10037.6 4 10037.7 5

### —

Monitorin g Wel l I D AP1TMW 3

A P 1 TMW 7 MONITORIN

G TM*^ M "*^*""^^^ I *TM***'^TM M " M Measurement Dat e 10/07/9 1 10/18/9 1 11/21/9 1 01/15/9 2 02/ 1 8/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 10/11/9 1 10/16/9 1 11/22/9 1 01/17/9 2 01/21/9 2 02/18/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 WEL

L WATE R L E SSSSSSS^nmf^^SSSS^^S^Sm Measuremen t Tim e 142 5 162 5 1330 161 5 173 0 140 8 084 9 113 5 1420 163 0 172 7 154 0 123 3 174 0 091 5 091 5 135 8 090 8 161 5 142 8 090 9 105 5 155 9 155 0 164 6 161 5 170 0 V EL SUMMAR Y Dept h t o Wate r (ft )
2.4 7 2.6 7 2.5 6 2.7 2 FROZEN FROZE N FROZE N 2.8 2 2.8 0 2.6 3 2.7 2 2.8 2 2.6 1 63.20 62.9 6 61.9 8 61.83 61.85 62.1 5 62.6 8 62.9 3 63.6 8 64.1 2 63.6 1 61.98 59.4 1 57.1 5 Groundwate r

Elevatio n (ft ) 10027.48 10027.2 8 10027.3 9 10027.2 3 FROZE N FROZE N FROZE N 10027.1 3 10027.1 5 10027.3 2 10027.23 10027.13 10027.34 10083.4 2 10083.6 6 10084.6 4 10084.7 9 10084.7 7 10084.4 7 10083.9 4 10083.6 9 10082.94 10082.5 0 10083.0 1 10084.6 4 10087.2 1 10089.4 7Monitorin

g Wel l I D AP1TMW 8

AP1TMW 9 MONITORIN

G Measuremen t Dat e 10/23/9 1 11/21/9 1 01/17/9 2 02/18/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 11/21/9 1 11/26/9 1 11/27/9 1 01/15/9 2 02/18/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 WEL

L WATER LE Measuremen t Tim e N A N A 1542 164 0 135 2 1139 112 0 153 0 151 0 1705 163 0 1642 085 5 081 4 070 0 113 3 163 5 134 8 113 2 1108 151 4 160 0 165 7 162 5 163 2 V E L SUMMAR Y
===:===

= Dept h t o Wate r (ft ) DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y 19.4 1 19.5 7 19,05 20.0 4 21.38 20.3 9 20.7 2 20.3 9 19.85 19.4 5 19.0 2 18.7 9 18.6 6 - — — — - - Groundwate r Elevatio n (ft ) DR Y DR Y DR Y DR Y DR Y DR Y D RY DR Y DR Y D RY DR Y DR Y 10094.7 6 10094.6 0 10095.12 10094.1 3 10092.7 9 10093.7 8 10093.4 5 10093.7 8 10094.3 2 10094.7 2 10095.1 5 10095.38 10095.5 1MONITORIN G WEL L WATE R LEVEL SUMMAR Y Monitorin g Wel l I D AP1TMW1 0

AP2TMW 1 Measuremen t

Dat e 10/23/9 1 11/21/9 1 01/17/9 2 02/18/9 2 03/ 1 6/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 10/29/9 1 11/21/9 1 01/15/9 2 02/18/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 Measuremen t

Tim e N A N A 153 5 1645 1344 112 8 111 2 152 1 160 5 170 1 163 0 163 6

: : , N A N A 112 1 1 74 0 135 8 N A 114 5 144 5 162 9 174 9 1550 170 5 L»,

—

— :r ~ ~ "

. ~ •!•• • —— — .-g-^i — . Dept h t o Wate r <ft ) DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y D RY D RY DR Y DR Y DR Y DR Y DR Y FROZE N DR Y DR Y DR Y DR Y DR Y DR Y [==^====^==

= Groun d wate r Eevatio n (ft ) DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y FROZE N DR Y DR Y DR Y DR Y DR Y DR Y

1 Wate r level s measure d fro m th e nort h sid e o f th e to p o f PV C casing

.Monitorin

g Wel l I D AP1TMW 1 AP1TMW 1 AP1TMW 2 AP1TMW 3 AP1TMW 3 AP1TMW 7 AP1TMW 7 AP1TMW 7 AP1TMW 7 AP1TMW 8 AP1TMW 9 AP1TMW1 0 AP2TMW 1 1 

### Dat e 01/ 1 7/9 2 01/17/9 2 01/15/9 2 01/15/9 2 01/15/9 2 01/17/9 2 01/17/9 2 01/21/9 2 01/21/9 2 01/17/9 2 01/15/9 2 01/17/9 2 01/15/9 2 MONITORIN

G WEL L Initia l Wate r Level 1 (ft )
12.2 7 12.2 7 

### 2. 3 Froze n 2.7 2 2.7 2 61.83 61.83 61.8 5 61.8 5 Dr y 20.0 4 Dr y Dr y Screene d Interval 1 (ft)
15.0

- 25. 0 15.0

- 25. 0 11.0

- 16. 0 15. 0 - 25. 0 15.0-25. 0 64.4 5 - 74.4 5 64.45-74.4 5 64.4 5 - 74.4 5 64.45 - 74.4 5 22. 5 - 37. 5 11.3-21. 3 11.5-21. 5 6.0-9. 1 SLU

G TES T D/> Typ e o f Slu g Tes t Fallin g Hea d Recover y N /A Fallin g Hea d Recover y Fallin g Hea d Recover y Falling Hea d 

### Recover y N / A Recover y (bai l down ) N / A N / A I i T A SUMMAR Y mS^—*****immH***£^^SSSSSSSS**»^*^f Hydrauli c Cond

. Bouwe r & Ric e (Partially 2 ) 

### (cm/sec) 3.5x 1 0' 3 

### 3.0x10 3 N /A 1.5x10' 4 1.3x10' 4 3.8x10' 2 4.7x10- z 8.5x 1 0' 2 1.2x10- N /A 7.2x10' B N / A N / A —

• Hydrauli c Cond

. Bouwe r & Ric e (Fully 2 ) 

### (cm/sec ) 4.5x 1 0' 3 3.0x 1 0' 3 N / A 2.0x 1 O' 4 1.7x10' 4 4.8x10' 2 6.0x 1 0 2 1.1x10' 1.5x10" N / A N / A N / A N / A 1

: — — ! —— — Hydrauli c Cond

. Hvorsle v (cm/sec ) 7.7x10' 3 7.0x10' 3 N / A 3.0x10' 4 2.8x10" * 9.4x10' 2 1.1x10" 1.7X10' 1 1.7x10 N / A 5.9x 1 0' 8 N / A N / A

1 

### Wate r level s an d screene d interval s measure d fro m th e to p o f 2 Partiall y refer s t o th e scree n partiall y penetrate s th e saturate d P V C casing

. zone , whil e Full y refer s t o th e scree n full y penetrate s th e saturate d zone .~£> w SS& s

= '^^^^'* KS WSi+ s&S^'Sag^tsa^Ss;'-- : ~^^^"~"~

- ^^i^^iga^s^-^^^ " ^ • -"rSKE^-rf^E

1 

### OREGO

N GULC H TAILING S IMPOUNDMEN

T

SiSS^^^.'-^S^* 3 :;?^-^

1 ^^^^^^^* ^ ^P^^^^^^S^L^^eS^^^-e^"" ^iS^SSSSSSSSSS^SSSm

Monitorin g Wel l I D OG1TMW 1 OG1TMW 2 OG1TMW 3 OG1TMW 4 OG1TMW 5 OG1TMW6 A OG1TMW 7 OG1TMW 8 "

- Developmen t Dat e 10/2/9 1 9/26/9 1 9/25/9 1 10/1/9 1 10/2-3/9 1 10/3/9 1 10/1/9 1 9/26/9 1 i

MONITORIN G WEL L DEVELOPMEN T DAT A Developmen t Metho d

2 " Baile r N /A 4 " Pum p 2 " Pum p 2 " Baile r 4 " Pum p N / A 4 " Pum p Initia l Wate r Leve l Fro m T o p o f PV C (ft )

: 185.1 0 Dr y 8.8 9 25.7 6 22.7 2 57.6 7 Dr y ; 5.6 0 Volum e Purge d (gal ) 29. 0 N / A 81, 4 92. 0 2 8 87. 9 N /A 103. 0 Casin

g Volume s Purge d
10. 1 N /A 10. 4 10. 7 10, 0 10. 3 N / A
, 10. 4 Pumpin

g Tim e (min ) 1 6 day s N /A 51 7 1 8 days 2 day s 30 0 N / A 18 6 SUMMAR Y

•••••••^•JSiSSaaa * Estimate d Productio n (gpm) <0.0 1 N / A 0.1 6 0.0 2 0.0 6 0. 3 N / A 0.5 5 iSStSSSSSSSSSSSSm P H (et d units ) 7.7 5 N / A 2.2 5 4.0 2 4.8 9 4.7 2 N / A 3.0 6 *

M M ~*^ M "*^^^"''** M ^ Specifi c Conductivity 1 (pmhos/cm ) 32 4 N / A 1 6,90 0 2,74 0 5,389 5,27 3 N / A 19,80 0 _____^____

—

_ Temperature (°C ) 8. 1 N / A 11. 9 8. 3 9. 0 14. 0 N /A 13. 7 'Th e reporte d pH
, temperature , an d specifi c conductivit y value s wer e measure d a t th e conclusio n o f wel l development

.Monitorin

g Wel l I D OG1TMW 1 OG1TMW 3 OG1TMW 4 OG1TMW 5 OG1TMW6 A OG1TMW 8 GROUNDWATE R

QUALIT Y Sampl e I D L-OG1TMW1-03-91103 0 L-O G 1 TMW 1 -04- 9 1 1 03 0 L-OG1TMW1-01-91103 1 L-OG1TMW3-01-91103 1 L-O G 1 T M W4- 0 1 - 9 1 1 03 0 L-OG1TMW5-01-91303 0 L-O G 1 TMW5-02- 9 1 303 0 L-O G 1 TMW5-MS- 9 1 303 0 L-OG1TMW6-01-91103 1 L-O G 1 T M W6-02- 9 1 1 03 1 L-OG1TMW6-MS-91103 1 L-O G 1TMW8-0 1 -91 1 03 1 SAMPLE S

COLLECTE D 

### Sampl e Dat e 10/30/9 1 10/30/9 1 10/31/9 1 10/31/9 1 10/30/9 1 10/30/9 1 1.0730/9 1 10/30/9 1 10/31/9 1 10/31/9 1 10/31/9 1 10/31/9 1 

### Sampl

e Tim e 120 0 122 0 135 0 153 0 163 0 153 0 153 0 153 0 113 0 113 0 113 0 194 5 Typ e o f Sampl e Fiel d Blan k Equipmen t Rinsat e 

### Primar y Primar y Primar y Primar y Duplicat e Matri x Spik e Primar y Duplicat e Matri x Spik e Primar yMonitoring

Wel l I D OG1TMW 1 OG1TMW 2 OG1TMW 3 OG1TMW 4 OG1TMW 5 OG1TMW6 A OGITMW 7 OG1TMW 8 

### Sampl e Dat e 10/31/9 1 

### Dr y 10/31/9 1 10/30/9 1 10/30/9 1 10/31/9 1 Dr y 10/31/9 1 t

— HI*^^MHII I I • • •!

. ——^~*^~m 

### Samplin g Metho d Disposabl e Baile r N / A 

### Disposabl e Baile r Disposabl e Baile r 

### Disposabl e Baile r Disposabl e Baile r N /A 

### Disposabl e Baile r MONITORIN

G V \ ^ = 

### Initia l Wate r Leve l Fro m T o p o f PV C (ft ) 182.7 6 • - " N / A 7.9 1 27

. 0 5 22.8 9 58.24 N / A 5.8 4 /ELL SAMPl ===•==== = Volum e Purge d 

## (gal ) 8.3 N / A 30. 8 17. 5 10. 0 29. 1 N / A 32. 2 I .IN G DAT A ! • " — Casing Volume s 

### Purge d
1. 9 N / A 3. 0 2. 1 2. 5 3. 3 N /A 3. 2 SUMMAR Y

—

_ P H 1 (std

. units ) 7.7 2 N / A 2.1 5 4.1 4 5.2 2 5.1 0 N /A 4.0 6 Specifi c Conductance 1 U/mhos/cm) 29 1 N /A 16,50 0 24,90 0 12,45 0 17,70 0 N /A 20,70 0 —

— 

### Temperature 1 

### (°C ) 5. 5 N /A 9. 9 -0. 9 7. 0 9. 3 N /A 9. 2

1 

### T h e reporte d pH
, specifi c conductivit y an d temperatur e wer e measure d a t th e tim e o f sampl e collection

.Monitorin

g Wel l I D OG1TMW 1

OG1TMW 2 MONITORI

N Measurement Dat e 10/30/9 1 0 1 / 1 6/9 2 02/19/9 2 03/ 1 6/9 2 04/13/9 2 05/18/9 2 06/ 1 5/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 09/12/9 1 09/20/9 1 09/26/9 1 02/19/9 2 03/ 1 6/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 1 0/26/9 2 G WEL L WATE R Measurement Tim e 1324 095 0 135 0 1334 0837 140 8 160 0 131 1 1440 152 5 121 8 083 0 133 2 141 5 150 0 130 5 081 4 131 7 150 0 121 5 122 6 151 2 1656 LEVE L SUMMAR Y
^*^^^^^

g< ^^^**^^^"^"TM < ^ ^ Dept h t o Water1 (ft )
182.7 6 182.33 182.5 4 182.8 9 183.5 0 183.9 5 183.7 9 183.0 8 181.8 4 180.2 9 178.8 3 DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y ».^___»_____^»

_ a Groun d wate r Elevatio n (ft ) 10101.2 9 10101.7 2 10101.5 1 10101.1 6 10100.5 5 10100.1 0 10100.2 6 10100.9 7 10102.2 1 10103.7 6 10105.2 2 DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR YMONITORIN G WEL L WATE R Monitorin g Wel l I D OG1TMW 3

OG1TMW 4 Measuremen t Dat e 09/25/9 1 10/31/9 1 01/17/9 2 02/19/9 2 03/ 1 6/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 10/01/9 1 10/30/9 1 01/16/9 2

• • : 02/19/9 2 03/ 1 6/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 Measuremen t

Tim e 0915 135 0 0925 151 0 1255 082 0 130 9 145 0 1200 1430 150 3 170 4 093 0 113 8 105 5 142 0 132 0 075 5 1348 164 2 125 0 145 5 1552 161 6 LEVE L SUMMAR Y

^ ^ M^»^M^^^^^»»5

5 Dept h t o Water 1 (ft )
8.8 9 7.9 1 8.7 0 8.4 6 6.7 4 4.6 4 6.18 8.7 1 8.8 8 7.8 3 7.9 5 8.6 5 25.7 6 27.0 5 27.9 7 27.9 2 28.3 4 28.2 7 26.9 0 26.2 2 26.3 2 25.8 7 24.8 0 24.6 3 " " Groundwate r Bevatio n (ft ) 10073.0 4 10074.0 2 10073.2 3 10073.4 7 10075.1 9 10077.2 9 10075.7 5 10073.2 2 10073.0 5 10074.1 0 10073.9 8 10073.28 10218.8 3 10217.54 10216.6 2 10216.67 10216.2 5 10216.3 2 10217.6 9 10218.3 7 10218.2 7 10218.7 2 10219.7 9 10219.9 6• ! • • • Monitorin g Wel l I D OG1TMW 5

OG1TMW6 A MONITORI

N Measuremen t Dat e 10/02/9 1 10/30/9 1 01/17/9 2 02/19/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 10/03/9 1 10/31/9 1 01/16/9 2 02/19/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 G WEL L WATE R •••^"•••"•••••^•'"•••^— i Measuremen t Tim e 104 0 120 9 102 3 143 5 131 5 080 2 135 5 163 3 124 6 145 8 154 3 161 0 105 5 092 5 1 23 2 1430 1329 074 8 133 7 162 0 124 0 145 0 160 3 163 0 LEVE L SUMMAR Y

__ _ ,^__

_ Dept h t o Water 1 (ft )
22.7 2 22.8 9 23.5 3 23.9 6 24.2 1 24.5 6 23.7 4 22.7 8 22.8 1 22.7 2 22.6 0 22.3 9 57.6 7 58.2 4 58.2 9 58.38 58.45 58.3 9 57.9 4 57.6 8 57.9 1 57.9 3 57.8 9 57.7 8 Groundwate r

Elevatio n (ft ) 10223.1 0 10222.9 3 10222.2 9 10221.8 6 10221.6 1 10221.2 6 10222.0 8 10223.0 4 10223.0 1 10223.1 0 10223.2 2 10223.4 3 10195.6 9 10195.1 2 10195.0 7 10194.9 8 10194.9 1 10194.9 7 10195.4 2 10195.6 8 10195.4 5 10195.4 3 10195.4 7 10195.5 8MONITORIN G WEL L WATE R Monitorin g Wel l I D OG1TMW 7

OG1TMW 8 Measurement Dat e 09/12/9 1 10/01/9 1 02/ 1 9/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 09/26/9 1 10/31/9 1 01/16/9 2 02/19/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 Measurement

Tim e 092 2 084 5 140 5 132 4 075 2 134 3 165 0 1255 150 0 1558 162 3 101 5 181 0 162 3 145 5 131 0 081 0 1324 153 5 122 6 150 7 152 4 165 0 LEVE L SUMMAR Y Dept h t o Water 1 (ft ) DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y 5.6 0 5.8 4 5.7 6 5.6 3 5.6 3 5.6 1 5.4 4 5.2 4 5.4 6 5.3 2 5.2 7 5.27 Groundwate r

Elevatio n (ft ) DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y

. 10162.0 8 10161.8 4 10161.9 2 10162.0 5 10162.0 5 10162.0 7 10162.2 4 10162.4 4 10162.22 10162.3 6 10162.4 1 10162.4 1 'Wate r level s measure d fro m nort h sid e o f th e to p o f PV C casing

.vi^*m*m*iHmMHm^SSSSiSSS££m

Monitorin g Wel l I D OG1TMW 1 OG1TMW 2 OG1TMW 3 OG1TMW 3 OG1TMW 4 OG1TMW 5 OG1TMW6 A OG1TMW 7 OG1TMW 8 OG1TMW 8 •^•^••••^••^••••••••••••• J Dat e 01/16/9 2 N / A 01/17/9 2 01/17/9 2 01/16/9 2 01/16/9 2 01/16/9 2 N / A 01/16/9 2 01/16/9 2 MONITORIN

G WEL L SLU G TES T DAT A SUMMAR Y 

### Initia l Wate r 

### Level 1 

### (ft)
182.3 3 N / A 8.7 0 8.7 0 27.9 7 23.5 3 58.2 9 N / A 5.7 6 5.7 6 

### Screene d Interval 1 

### (ft )
179. 0 - 189. 0 15.7-25. 7 10. 7 -20. 7 10.7-20. 7 16. 1 -36. 1 64.4 5 - 74.4 5 50. 5 - 70. 5 16.0-36. 0 10. 7 -20. 7 10. 7 - 20. 7 Typ e o f Slu g Tes t Recover y N /A 

### Fallin g Hea d Recover y 

### Recover y (bai l down ) Recover y 

### (bail down ) 

### / Recover y N /A Fallin g Hea d Recover y 

### Hydrauli c Cond

. Bouwer & Ric e 

### (Partially 2 

### ) (cm/sec)



### ~ N /A 8.0x 1 0' 6 1.5x10- "

- - ••-..-

-

- - N /A 3.5x 1 O' 4 3.1x10- " 

### Hydrauli c

Cond

. Bouwer & Rice (Fully 2 ) (cm/sec ) 1.3x10- N / A 1.0x10' 4 1.9x10' 4 4.8x10' e
5.8x 1 0 s
1.2x10 3 N /A 4.5x 1 q * 4.0x 1 0' 4 Hydrauli c

Cond

. 

### Hvorsle v (cm/sec )
4.3x 1 0' 6 N /A 2.1x10' 4 3.7x10' 4 2.2x 1 0- " 4.8x10 6
6.7x 1 0' 3 N / A 7.6x 1 0- 4 7.0x10- * 'Wate r level s an d screene d interval s wer e measure d fro m th e to p o f PV C casing

. 2 

### Partiall y refer s t o th e scree n partiall y penetratin g th e saturate d zone , whil e Full y refer s t o th e scree n full y penetratin g th e saturate d zone .

### MALT A TAILING S IMPOUNDMEN

T

•*^•~^*£v^-£3£&-^&£Z-:?'-~

"-•Monitoring

Wel l I D
MA1TMW 1 MA1TMW 2 MA1TMW 3 MA1TMW 4 MA1TMW 7 Developmen t Dat e 11/19/9 1 10/18/9 1 10/10/9 1 10/09/9 1 10/10/9 1 = Developmen t Metho d

2 " Pum p 4 " Pum p 4 " Pum p 4 " Pum p N / A MONITORING

-

~ Initia l Wate r Level Fro m T o p o f PV C (ft ) ] 160.3 2 66.6 5 74.9 2 75.6 9 Dr y WEL L DE V •**••—• Volum e Purge d (gal ) 132. 0 179. 5 132. 1 70. 9 N / A ELOPME N ,,.—^— Casing Volume s Purge d
10. 0 19. 2 10. 3 9. 8 N / A I T DAT A SUMMAR Y

——~— — — • • Pumpin g Tim e (min. ) 200. 0 78. 0 22. 0 89. 0 N / A Estimate d Productio n (gpm) 0.6 6 2.3 0 6.0 0 0.8 0 N /A . p H (et d unite ) 6.80 7.0 0 6.9 7 7.3 8 N / A ••••••••••••••••••••••S^S

j Specifi c Conductivity 1 (^mhos/cm ) 79 3 106 7 67 4 73 3 N / A = Temperature 1 <°C ) 6. 8 6. 5 6. 3 6.2 N / A 'Th e reporte d pH
, temperature , an d specifi c conductivit y value s were measure d a t th e conclusio n o f wel l development

.Monitorin

g Wel l I D MA1TMW 4
MA1TMW 3 MA1TMW 2 MA1TMW 1 GROUNDWATE R

QUALIT Y S '^^^i^^^Z^^S^^^m^^HmKi^^ii^^^mi^^Smm 

### Sampl e I D L-MA 1 TMW04-0 1 -9 1 1 1 2 0 L-MA1TMW04-02-9 1

1 1 2 0 L-MA1TMW04-MS-9 1

1 1 2 0 L-MA1TMW03-0 1 -9 1 1 1 2 0 L-MA1TMW02-01-91112 0 L-MA1TMW01-01-91112 0 AMPLE S

COL l

= = 

### Sampl e Dat e 11/20/91 11/20/9 1 11/20/9 1 11/20/9 1 11/20/9 1 1 1 /2.0/9 1 .ECTED 

### Sampl e Tim e 103 0 

### 103 0 103 0 1300 143 0 1630 = Typ e o f 

### Sampl e Primar y Duplicat e 

### Matri x Spik e Primar y Primar y Primar y QA/Q C Sample s CZ1TMW 6 AP1TMW 3 L-CZ1TMW06-03-91111 6 L-AP1TMW03-04-9 1

112 1 11/16/9 1 11/21/9 1 184 0

150 0 Tri p Blan k Rinsat e1 MONITORIN G WEL L SAMPLIN G DAT A SUMMAR Y Monitoring Wel l I D MA1TMW 1 MA1TMW 2 MA1TMW 3 MA1TMW 4 MA1TMW 7 Sample 

### Dat e 11/20/9 1 11/20/9 1 11/20/9 1 11/20/9 1 Dr y 

### Samplin g Metho d

2 " S S Pum p 2 " S S Pum p 2 " S S Pum p 

### 2 " S S Pum p N / A Initia l Wate r 

### Leve l Fro m T o p o f PV C (ft) 150.05 66.6 4 74J9 1 75.6 5 Dr y Volum e Purge d 

### (gal ) 41. 0 28. 0 40. 0 37. 0 N/A/ Casing 

### Volume s Purge d
3. 1 3. 0 3. 1 5. 1 N / A P H

1 (std

. units ) 7.01 6.7 7 6.8 7 7.0 5 N / A Specifi c Conductivity 1 (yumhos/cm ) 693 951 76 3 77 7 N / A Temperature 1 (°C ) 6. 6 6. 2 6. 7 6. 6 N / A

1 

### T h e reporte d pH
, specifi c conductivit y an d temperatur e wer e measured a t th e tim e o f sampl e collection

.^

— — ——

— • Monitorin g Wel l I D MA1TMW 1

MA1TMW 2 MONITORIN

G Measuremen t Dat e 11/19/9 1 11/20/9 1 01/15/9 2 02/19/9 2 03/17/9 2 04/13/9 2 05/18/9 2 06/ 1 7/9 2 07/21/9 2 08/17/9 2 09/21/9 2 10/26/9 2 10/18/9 1 01/14/9 2 02/19/9 2 03/17/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 WEL

L WATE R L E SSTflTSI^^'^^TffT^^TT^^^ ^ Measuremen t Tim e 103 0 154 7 120 0 161 0 143 7 144 3 111 0 103 0 84 3 173 5 145 0 1330 114 5 153 0 171 5 142 9 150 0 122 4 141 5 173 5 170 5 144 0 135 0 V E L SUMMAR Y ^"*""TM"*"*""""""

p ^"*^"^"""^ Dept h t o Wate r (ft )
150.3 2 150.05 150.3 0 150.4 6 150.7 5 151.2 7 151.8 5 152.2 3 152.5 0 152.6 5 152.8 5 152.9 8 66.6 5 66.7 0 66.8 6 67.0 3 67.2 9 67.2 8 67.7 3 68.1 4 68.4 3 68.8 1 69.1 3 —

Groundwate r Elevatio n (ft ) 9734.6 2 9734.8 9 9734.6 4 9734.4 8 9734.1 9 9733.6 7 9733.0 9 9732.7 1 9732.4 4 9732.29 9732.0 9 9731.9 6 9717.0 2 9716.9 7 9716.8 1 9716.64 9716.3 8 9716.3 9 9715.9 4 9715.5 3 9715.2 4 9714.8 6 9714.54—

Monitorin g Wel l I D MA1TMW 3

MA1TMW 4 MONITORIN

G •^B*"^^^^^TM

1 ^^*^TM'**^^" ^ Measurement Dat e 10/10/9 1 11/20/9 1 11/26/9 1 01/15/9 2 02/19/9 2 03/ 1 7/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 10/09/9 1 11/20/9 1 11/26/9 1 01/15/9 2 02/19/9 2 03/17/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 WEL

L WATE R L E

_ — — ^^^^^^ ^ Measurement Tim e 152 9 121 0 085 7 1343 170 5 1425 145 6 120 7 140 6 172 7 1 70 0 143 3 134 7 171 4 093 0 083 3 142 0 170 0 142 1 145 2 120 4 135 5 172 1 1655 143 0 1345 V E L SUMMAR Y

. . • - -i i i i • «r- n

I--M

. Dept h t o Wate r (ft )
74.9 2 74.9 1 74.9 2 75.1 4 75.15 75.2 8 75.5 8 75.6 3 75.9 6 76.28 76.5 3 76.9 1 77.1 3 75.6 9 75.6 5 75.5 9 75.7 9 75.8 0 75.9 2 76.2 3 76.3 9 76.7 4 77.0 6 77.3 1 77.6 3 77.7 9 sss Groundwate r Elevatio n (ft ) 9714.8 6 9714.8 7 9714.8 6 9714.6 4 9714.6 3 9714.50 9714.2 0 9714.1 5 9713.8 2 9713.5 0 9713.2 5 9712.8 7 9712.6 5 9720.3 2 9720.3 6 9720.4 2 9720.2 2 9720.2 1 9720.0 9 9719.7 8 9719.6 2 9719.2 7 9718.9 5 9718.7 0 9718.3 8 9718.2 2=

Monitorin g Wel l I D MA1TMW 7 MONITORIN

G ^^^^^STSJT^^^i

— i - i Measurement Dat e 09/20/9 1 11/26/9 1 02/19/9 2 03/ 1 7/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 i WEL L WATE R L E 1 Measurement Tim e 110 0 084 5 165 5 141 7 150 4 115 7 1345 171 7 164 5 142 5 134 0 V E L SUMMAR Y Dept h t o Wate r (ft ) DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y = Grouridwate r Elevatio n (ft > DR Y DR Y DR Y DR Y DR Y DR Y DR Y DR Y D RY DR Y DR Y 'Wate r level s measured fro m th e nort h sid e o f th e to p o f PV C casing

.1 MONITORIN G WEL L SLU G TES T DAT A SUMMAR Y

— - Monitorin g Well I D MA1TMW1 MA1TMW 1 MA1TMW 2 MA1TMW 3 MA1TMW 3 MA1TMW 4 ._—

— I I

. 

### Dat e
01/15/9 2 01/15/9 2 01/14/9 2 01/15/9 2 01/15/9 2 01/15/9 2 Initia l

Wate r Level 1 (ft )
1 50. 3 150. 3 66.7 0 75.1 4 75.1 5 i 75.7 9 

### Screene d Interva l (ft)
151. 9 - 166. 9 151. 9 - 166. 9 61.5

- 76. 5 81.05

- 91.0 5 81.05 - 91.0 5 71.3 2 - 86.3 2 Typ e o f Slu g Tes t Fallin g Hea d Recover y 

### Recover y Fallin g Hea d Recover y Recover y Hydrauli c Cond

. 

### Bouwer & Ric e 

### (Partially 2 

### ) (cm/sec ) 1.1x10' 2 1.2x10' 2 1.6x10' 2 5.8x 1 0' 3 4.9x 1 0' 3 4.1x10' 3 

### Hydrauli c

Cond

. Bouwer & Ric e 

### (Fully 2 

### ) (cm/sec ) 1.3x10' 2 1.4x10' 2 2.0x 1 0' * 7.4x 1 0' 3 6.4x 1 0' 3 5.1x10' 3 

### Hydrauli c

Cond

. Hvorsle v (cm/sec ) 2. 1 x10 2 2.2x 1 0' 2 1.4x10' * 1.1x10' 2 9.8x10' a 3.6x 1 0- 3

1 Wate r level s an d screene d interval s wer e measure d fro m th e to p o f PV C casing

. 2 Partiall y refer s t o th e scree n partiall y penetratin g th e saturate d zone , whil e Full y refer s t o th e scree n full y penetrating th e saturate d zone .8Spbs:«v- ;

SgS£-<-&.-

-

S§S5'>^:-

- 

### COLORAD O

ZIN C LEA D TAILINGS IMPOUNDMEN T1 MONITORIN G WEL L DEVELOPMEN T DAT A SUMMAR Y Monitorin g Wel l I D CZ1TMW 1 C21TMW 4 CZ1TMW 6 CZ1TMW7 A CZ1TMW 8 Developmen t Dat e 11/19/9 1 10/17/9 1 10/17/9 1 10/24/9 1 10/23/9 1 Developmen t

Metho d

2" Baile r 2" Baile r 4 " Pum p 4 " Pum p 4 " Pum p Initia l Wate r Leve l Fro m T o p o f PV C (ft ) i 5,5 1 12.3 0 3.5 5 4.9 0 3.6 0 Volum e Purge d (gal ) 104. 5 13. 0 119. 8 103. 0 306. 2 Casin

g Volume s Purge d
10.7 7 10.4 8 10.1 7 18.7 3 39.4 7 Pumping Tim e (min ) 816. 0 312. 0 205. 0 147. 8 474. 0 Estimate d Productio n (gpm) 0.13 0.0 4 0.5 8 0.7 0 0.6 4 P H (st d units ) 6.7 0 5.4 3 5.8 0 3.01 4.7 9 Specifi c Conductivity 1 (jumhos/cm ) 123 8 123 6 109 5 180 1 163 6 Temperature 1

(°C ) 5. 8 10. 6 8.4 11. 5 9. 6 'Th e reporte d pH
, specifi c conductivity , an d temperatur e value s Wer e measure d a t th e conclusio n o f wel l development

.SSSSSSSSS^SSSSSS^SiiS

Monitorin g Wel l I D CZ1TMW 1 CZ1TMW 4 CZ1TMW 6 CZ1TMW7 A CZ1TMW 8 ————

— • Sampl e 

### Dat e 11/19/9 1 11/18/9 1 11/16/9 1 11/18/9 1 11/19/9 1 N

- -••—-

- •MMWWWHM^MMB^PVHM

M Samplin g Metho d 

### Disposabl e Baile r Disposabl e Baile r Disposabl e Baile r Disposabl e Baile r Disposabl e Baile r I IONITORIN G WEL L SAMPLIN G DAT A SUMMAR Y Initia l Wate r Leve l Fro m T o p o f PV C (ft ) 5.4 1 12.2 1 3.5 7 4.5 5 3.51 

### Volum e Purge d 

### (gal ) 25. 8 6. 0 36. 0 20. 0 28. 0 

### Casin g Volum e Purge d
3. 0 4. 6 3. 1 3. 5 3. 6 p H

1 (std

. units ) 6.1 3 4.8 5 5.9 0 2.86 5.1 7 

### Specifi c Conductivity 1 

### (//mhos/cm) 129 2 120 6 102 8 2242 304 0 

### Temperature 1



### (°C ) 5.9 6. 5 5. 5 5. 0 5. 0

1 

### T h e reporte d pH
, specifi c conductivit y an d temperatur e wer e measure d a t th e tim e o f sampl e collection

.Monitorin

g Wel l I D CZ1TMW 1 CZ1TMW 4 CZ1TMW 6

CZ1TMW7 A
CZ1TMW 8 GROUNDWATE R

QUALIT Y

Sample I D L-CZ1T M W 0 1- 0 1-911 1 1 9 L-CZ1TMW04- 0 1-91 1 11 8 L-CZ1TMW06-01-91111 6 L-CZ1TMW06-02-9 1

111 6 L-CZ1TMW06-MS-9 1

111 6 L-CZ1TMW06-04-91111 6 L-CZ1TMW06-03-91111 6 L-CZ1TMW7A-01-91111 8 L-CZ1TMW7A-02-91111 8 L-CZ1TMW7A-MS-9 1

1 1 1 8 L-CZ1TMW08-01-91111 9 L-CZ1TMW08-02-9 1

1 1 19 L-CZ1TMW08-MS-9 1

1 1 1 9 SAMPLE S C ^^___-^__ss : 

### Sampl e Dat e 11/19/9 1 11/18/9 1 11/16/9 1 11/16/9 1 11/16/9 1 11/16/9 1 11/16/9 1 11/18/9 1 11/18/9 1 11/18/9 1 11719/9 1 11/19/9 1 11/19/9 1 OLLECTE D 

### Sample Tim e 133 0 1045 160 0 160 0 160 0 1 80 0 184 0 133 0 133 0 133 0 154 5 1 545 154 5 •MMMmBWMW^BBVWB^^H^M^^MHMV m Typ e o f Sample Primary Primary Primary Duplicat e Matri x Spik e Equipmen t Rinsat e Fiel d Blank Primary Duplicat e Matri x Spik e Primary Duplicat e Matri x Spik eMONITORIN G WEL L WATE R LEVE L SUMMAR Y Monitorin g Wel l I D CZ1TMW 1

CZ1TMW 4 Measurement

Dat e 11/06/9 1 11/19/9 1 01/20/9 2 02/19/9 2 03/17/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/21/9 2 08/17/9 2 09/21/9 2 10/26/9 2 10/11/9 1 10/17/9 1 11/17/9 1 01/17/9 2 01/20/9 2 02/19/9 2 03/17/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/21/9 2 08/17/9 2 09/21/9 2 10/26/9 2 Measuremen

t Tim e 163 4 100 5 1232 181 0 135 4 143 2 114 7 150 5 91 8 161 2 171 2 150 7 1722 084 0 115 5 094 1 1 23 7 1750 134 6 1423 1135 145 0 90 5 162 8 1700 153 0 Dept

h t o Water 1 (ft )
5.51 5.41 5.3 2 5.51 5.5 6 4.9 6 5.4 3 5.5 0 5.2 8 5.1 7 5.3 7 5.2 6 12.3 8 12.30 12.2 1 11.9 4 12.0 6 12.4 2 12.3 2 11.5 4 12.0 2 12.1 4 12.1 5 12.0 3 12.2 1 12.4 0 Groundwate r

Elevatio n (ft ) 9833.3 2 9833.4 2 9833.5 1 9833.3 2 9833.2 7 9833.8 7 9833.4 0 9833.3 3 9833.5 5 9833.6 6 9833.4 6 9833.5 7 9820.4 3 9820.51 9820.6 0 9820.8 7 9820.7 5 9820.3 9 9820.4 9 9821.2 7 9820.7 9 9820.6 7 9820.6 6 9820.7 8 9820.6 0 9820.4 1

### • = Monitorin g Wel l I D CZ1TMW 6

CZ1TMW7 A MONITORIN

G Measurement Dat e 10/11/9 1 10/17/9 1 11/16/9 1 01/17/9 2 02/ 1 9/9 2 03/17/9 2 04/13/9 2 05/ 1 8/9 2 06/16/9 2 07/21/9 2 08/ 1 7/9 2 09/21/9 2 10/26/9 2 10/24/9 1 11/17/9 1 01/17/9 2 01/20/9 2 02/19/9 2 03/17/9 2 04/13/9 2 05/18/9 2 06/ 1 6/9 2 07/21/9 2 08/17/9 2 09/21/9 2 10/26/9 2 WEL

L WATE R L

_ — .^____^__^_ : Measurement Tim e 172 6 145 0 1047 094 1 1755 134 9 142 6 113 8 1457 90 8 1 63 4 170 5 154 0 095 5 150 0 093 7 1558 174 0 134 1 141 7 112 0 143 0 85 5 161 7 165 2 155 1 EVEL SUMMAR Y
^^^••^^•••^^^^^•^••••i^^ ^ Dept h t o Water 1 (ft )
2.5 0 3.5 5 3.5 7 FROZE N FROZE N FROZEN FROZE N 3.6 7 3.7 8 3.5 8 3.4 1 3.6 5 3.5 0 4.9 0 4.5 5 4.3 4 4.5 8 4.7 8 4.4 5 2.6 9 4.3 4 4.41 4.7 1 4.1 3 4.4 7 4.6 1 Groun d

wate r Elevatio n (ft ) 9823.0 5 9822.0 0 9821.9 8 FROZE N FROZE N FROZE N FROZE N 9821.8 8 9821.7 7 9821.9 7 9822.1 4 9821.9 0 9822.0 5 9812.5 0 9812.8 5 9813.0 6 9812.8 2 9812.6 2 9812.9 5 9814.71 9813.0 6 9812.9 9 9812.6 9 9813.2 7 9812.9 3 9812.7 9Monitorin

g Wel l I D CZ1TMW 8 MONITORIN

G

_ ^ ~__«.^__^ ^ Measuremen t Dat e 10/23/9 1 11/18/9 1 01/17/9 2 02/19/9 2 03/ 1 7/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/21/9 2 08/17/9 2 09/21/9 2 10/26/9 2 WEL

L WATE R L Measuremen t Tim e 093 0 162 0 0930 1745 134 3 1420 112 4 143 9 90 0 1 62 2 165 6 154 4 EVE L SUMMAR Y Dept h t o Water 1 (ft )
3.6 0 3.4 6 • » 3.51 Froze n * * 3.4 0 Froze n • » 3.3 5 Froze n • » 3.2 5 Froze n 3.5 2 3.6 0 3.4 9 3.7 0 3.4 1 3.2 9 Groundwate r

Elevatio n (ft ) 9817.2 3 9817.3 7 Froze n Froze n Froze n Froze n 9817.3 1 9817.2 3 9817.3 4 9817.1 3 9817.4 2 9817.5 4 'Wate r level s measure d fro m nort h sid e o f th e to p o f PV C casing

.

### Monitorin

g Wel l I D CZ1TMW 1 CZ1TMW 1 CZ1TMW 4 CZ1TMW7 A CZ1TMW7 A Dat

e
01/20/9 2 01/20/9 2 01/20/9 2 01/20/9 2 01/20/9 2 M

(
**^** > *^^^^^" MI'' i ^^* M ^ 

### Initia l Wate r 

### Level 1 

### (ft )
5.3 2 5.3 0 12.0 6 4.5 8 4.5 8 DNITORIN

G WE L 1 — ~— 

### Screene d Interval 1 

### (ft )
10.0-20. 0 10.0-20. 0 6. 6 - ir. 6 5.2-10. 2 5.2-10. 2 L SLU G TES T DA T A SUMMAR Y 

### Typ e o f Slug Tes t Fallin g Hea d Recover y Recover y 

### Fallin g Hea d Recover y 

### Hydrauli c Cond

. Bouwe r & Rice 

### (Partially 2 

### ) 

### (cm/sec ) N / A N /A N / A N / A N / A •SSlS5^MMMiHiM55S««HH«HBH B 

### Hydrauli c Cond

. Bouwe r & Rice 

### (Fully 2 

### ) 

### (cm/sec ) 1.2x10- * 1.7x10- " 8.6x 1 0' 4 2.6x 1 0' 3 3.8x10' 3 ^"^**^""**TM"

M M * i M ^'^***'"TM M ^ 

### Hydrauli c Cond

. 

### Horsle v (cm/sec ) 3.5X10" 4 2.8x10- * 8.9x 1 0' 4 5.0x10- 3 7.9x 1 0' 3

1 Wate r level s an d 2 Partiall y refer s t o screene d interval s wer e measure d fro m th e to p o f th e PV C casing

. t h e scree n partiall y penetrating th e saturate d zone , whil e Full y refer s t o th e scree n full y penetratin g th e saturate d zone .

### HAMM' S MIL L TAILING S IMPOUNDMEN

T

229OTC-2232t/R22>TS2

.

0 1 -28,93(3-40|)m)/RPT

; ] 01 MONITORIN G WEL L DEVELOPMEN T DAT A SUMMAR Y

__•__—

— ^_____

_ ——— — ^""TM'TM

S Monitoring Wel l I D
HM1TMW 4 HM1TMW 5 WMW 2 Developmen t Dat e 12/05/91

- 01/06/9 2 12/05-13/9 1 11/05/91

- 12/11/9 1 Developmen t

Metho d

2 " S S Baile r & 2 " S S Pum p 2 " S S Baile r 2 " S S Baile r & Disposabl e Baile r Initia l

Wate r Level Fro m T o p o f PV C

: (ft

) 129.5 3

106.1 2 92.5 3 Volum e Remove d (gal ) 10 3

6 8 2 8 Casin g Volume s Purge d
10. 0

10. 0 10. 0 Pumpin

g Tim e (min ) 1 4 Day s

29 2 9 Day s Estimate d Productio n (gpm ) -0.0 1

-0.0 6 -0.0 7 P H (st d units ) 6.7 4

6.4 0 6.8 3 Specifi c Conductivity 1 (pmhos/cm ) 38 5

59 2 1785 Temperature 1

(°C ) 5. 0

6.2 8. 5 'Th e reporta d pH
, specifi c conductivity , an d temperatur e value s wer e measure d a t th e conclusio n o f wel l development

."*^^^^^^^^^"***^* M **"^ TM Monitoring Wel l I D HM1TMW4 HM1TMW5 WMW 2 WMW2 2 ""•^ — •• • 

### Sampl e Dat e 01/08/9 2 01/08/9 2 01/09/9 2 01/10/9 2 MONITORIN

G WEL L SAMPLIN G DAT A SUMMAR Y Samplin g 

### Metho d

2 " S S Baile r 2 " S S Baile r 

### 2 " S S Baile r 2 " S S Baile r Initia l Wate r Leve l Fro m T o p o f PV C (ft) 128.5 0 85.2 8 92.6 9 93.6 9 Volum e Purge d (gal ) 19. 2 40.2 6. 4 2. 2 Casing 

### Volume s Purge d
1.7 4 2.07 2.3 9 0. 8 P H

1 

### (std

. units ) 7.5 6 

### 6.8 5 6.6 1 6.4 4 

### Specifi c Conductivity 1 

### Ot/mhos/cm ) 39 6 55 9 305 0 318 5 Temperature 1

(°C ) 4. 5 5. 2 5. 1 4.4

1 T h e reporte d pH
, specifi c conductivity , an d temperatur e wer e measure d a t th e tim e o f sampl e collection

. 2 T h e secon d samplin g o f WMW 2 wa s performe d t o collec t a n EP A split

.•••••^^^••^•••••••^••^^•iMHi H Monitorin g Wel l I D HM1TMW4

HM1TMW 5 WMW 2 GROUNDWATE R

QUALIT Y Sampl e I D L-HM1TMW4-01-91010 8 L-HM1TMW4-02-91010 8 L-HM1TMW4-03-91010 8 L-HM1TMW4-04-91010 8 L-HM1TMW4-MS-91010 8 L-HM1TMW5-01-91010 8 L-WMW2-01-92010 9 L-WMW2-02-920 1

0 9 L-WMW2-MS-92010 9 SAMPLE

S C 

### Sampl e Dat e 01/08/9 2 01/08/9 2 01/08/9 2 01/08/9 2 01/08/9 2 01/08/9 2 01/09/9 2 01/09/9 2 0 1 /09/9 2 OLLECTE D ===•====: • 

### Sampl e Tim e 113 0 113 0 083 0 113 0 113 0 1445 120 0 120 0 120 0 ~

"' •

••i-i " •

- i -» . Typ e o f Sampl e Primar y Duplicat e Fiel d Blank Equipmen t Rinsat e Matri x Spik e Primary

. Primary Duplicat e Matri x Spik eMonitorin

g Wel l I D HM1TMW 2

- HM1TMW 3

HM1TMW 4 MONITORIN

G \ Measuremen t Dat e 01/06/9 2 02/ 1 8/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/ 1 6/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 11/16/9 2 0 1 /06/9 2 02/ 1 8/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 11/17/9 2 12/05/9 1 01/06/9 2 01/13/9 2 01/14/9 2 02/ 1 8/9 2 03/16/9 2 WELL

WATE I

= 

### Tim e
152 0 153 5 1535 095 8 120 7 0925 134 2 115 5 172 0 160 4 94 5 151 1 1550 152 3 095 7 163 8 153 4 133 5 1 200 165 5 161 0 93 5 1030 112 4 1330 124 0 155 5 152 7 3 LEVE L SUMMAR Y Dept h t o Wate r Fro m To p o f PVC 1 (ft ) -99.00 -99.00 -99.00 -99.0 0 -99.0 0 -99.0 0 -99.0 0 -99.00 -99.0 0 -99.0 0 -99.00 194.7 0 194.6 7 194.7 3 194.6 9 194.7 4 194.7 0 -99.00 194.6 7 -99.00 -99.0 0 -99.0 0 129.5 3 128.5 0 128.6 7 128.3 2 128.2 2 129.2 1 Groun d

Wate r Elevatio n (ft ) DR Y D RY DR Y DR Y DRY DR Y DR Y DR Y DR Y D RY DR Y 10131.5 9 10131.6 2 10131.5 6 10131.6 0 10131.55 10131.5 9 DR Y 10131.6 2 DR Y DR Y DR Y 10177.6 5 10178.6 8 10178.5 1 10178.8 6 10178.9 6 10177.9 7

# =====

= Monitorin g Wel l I D HM1TMW4

HM1TMW5

WMW 2 MONITORIN

G \ ""*""""^*"*"*'" P **^" M TM""^TM P *" Measuremen t Dat e 04/13/9 2 05/18/9 2 06/16/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 11/16/9 2 12/05/9 1 01/07/9 2 01/14/9 2 02/18/9 2 03/16/9 2 04/13/9 2 05/18/9 2 06/16/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 11/16/9 2 11/25/9 1 01/08/9 2 01/14/9 2 02/ 1 8/9 2 03/16/9 2 04/13/9 2 05/18/9 2 NELL

WATE I ; Tim e
094 8 163 1 152 3 153 6 121 6 1650 161 5 151 5 151 5 094 7 113 0 1600 154 3 094 2 124 4 1546 ; 153 0 122 3 164 5 1622 95 8 163 0 152 0 092 2 151 5 151 6 1006 121 5 = 1 LEVE L SUMMARY '"•^

— i^^i-^

— -^^^aa^s^^j

a ^^^^S^^^Sf^^————-

. — — . ————— — 

### Dept h t o Wate r Fro m To p o f PVC 1 <ft ) 129.8 3 130.0 7 129.9 4 130.5 2 130.3 8 130.6 8 130.8 3 130.9 1 106.1 2 85.2 8 88.2 5 85.5 4 85.8 4 86.1 1 86.0 9 85.7 2 85.6 7 85.3 9 84.7 3 84.3 5 84.10 83.4 0 92.6 9 92.9 0 93.5 2 94.1 1 94.7 5 94.3 6 = Groun d Wate r Elevatio n (ft ) 10177.3 5 10177.1 1 10177.2 4 10176.6 6 10176.8 0 10176.5 0 10176.3 5 10176.2 7 10169.1 8 10190.02 10187.0 5 10189.76 10189.4 6 10189.1 9 10189.2 1 10189.5 8 10189.6 3 10189.9 1 10190.5 7 10190.9 5 10191.2 0 10434.9 9 10425.7 0 10425.4 9 10424.8 7 10424.2 8 10423.6 4 10424.0 3Monitorin

g Wel l I D WMW 2 MONITORIN

G \ • Measuremen t Dat e 06/15/9 2 07/20/9 2 08/17/9 2 09/21/9 2 10/26/9 2 11/17/9 2 NEL

L WAT E
"*^^** > ^^*"^^***' ^ Tim e
170 0 1350 112 9 1705 154 5 100 7 = 1 LEVE L SUMMAR Y Dept h t o Wate r Fro m To p o f PVC 1 <ft ) 95.77 96.38 96.5 6 -99.0 0 -99.00 -99.0 0 ===!^= = Groun d Wate r Elevatio n (ft ) 10422.6 2 10422.0 1 10421.83 DRY DR Y DRY 'Wate r level s measure d i n feet, fro m th e nort h sid e o f th e to p o f PV C casing

.

### APPENDI X F 

### TOXICOLOGICA

L PROFILE S 

### INTERPRETATIO N

O F ASSES S OUTPU T ASSES S REPORT S

22909C-22327/R22. F

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### APPENDI X F TABLE O F CONTENT S 

### Titl e Pag e ANTIMON Y F- l ARSENI C F- 4 BARIU M F- 9 BERYLLIU M F-l l CADMIU M F-1 4 

### CHROMIU M F-1 9 COPPE R F-2 3 LEA D F-2 5 

### MANGANES E
,

"•,

. F-3 0 MERCUR Y F-3 3 ZIN C F-3 6 INTERPRETATION

O F ASSES S REPORT S F-3 8 ASSES S REPORT S F-4 3

22909C-22327/R22. F

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-1

-

### ANTIMON Y 

### Antimon y i s ofte n used i n associatio n wit h lea d an d arseni c i n industry

. Th e majo r use s o f thi s meta l includ e th e manufactur e o f lead alloys , storag e batteries , pewter , rubber, matches , ceramics , enamels , paints , lacquers , an d textile s (Goye r 1986)

. Antimony form s 

### a volatil e oxid e i n reactio n wit h steam, nitri c acid , o r strongl y oxidizin g salts

. Whe n heated , antimon y react s wit h halogen s (e.g.
, chlorin e o r bromine)

. Oxides
, sulfides , an d chloride s o f antimon y are the mos t commo n form s foun d i n industr y (Clayto n and 

### Clayto n 1981)

. 

### Mos t antimon y exposure s occu r vi a ingestio n o r inhalation

. Because antimon y i s usuall y foun d i n associatio n wit h lead and arsenic, i t i s difficul t t o asses s the toxicit y o f antimon y alone , particularl y in human s (Sa x 1986)

. Human s expose d t o high level s o f antimon y dust s ma y experienc e gastrointestina l problem s and inflammatio n o f the mucou s membrane s o f th e nos e an d throat

. I n addition , antimon y inhalatio n ma y resul t i n 

### effect s o n the nervou s syste m suc h a s irritability , sleeplessness , fatigue , dizziness , and muscula r and neurologica l pain

. Antimon y compound s ma y als o b e irritatin g t o the ski n upo n direc t contac t (Sa x 1986)

. Animal s expose d t o th e fume s o f antimon y oxid e hav e develope d pneumonitis , fatt y degeneratio n o f th e liver , a decrease d whit e bloo d cel l count , and damag e t o the hear t muscle

. The subchroni c and chroni c ora l Rf D for antimon y i s 4 x 10" 4 

### mg/kg/da y a s determine d fro m a two yea r stud y i n rat s (Schroede r et al

. 1970)

. A n inhalatio n Rf C ha s not yet been determined

. 

### Studie s sugges t tha t chroni c occupationa l exposur e t o antimon y compound s result s in deleteriou s nervou s syste m effects

. Thes e effects ar e ver y difficul t t o attribut e t o 

### antimon y alon e becaus e o f th e uncertaintie s note d above

. Nonetheless
, myocardia l effects following chroni c exposur e t o antimon y amon g factor y worker s hav e been conclusivel y documented

. Individual s expose d t o antimon y trisulfide a t concentration s 

### rangin g fro m 0.5 8 t o 5. 5 mg/m 3 

### exhibite d EC G change s an d elevate d bloo d pressur e (Carso n 1986)

.

22909C-22327/R22. F

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F- l

### Stokinge r

(1981 ) reporte d tha t femal e worker s expose d t o antimon y experience d a highe r tha n normal incidenc e o f spontaneou s abortion s lat e in th e pregnancy , prematur e births , a n d depresse d infan t weigh t gain

. Anima l studie s faile d t o reproduc e thes e finding s (Stokinge r 1981)

.

22909C-22327/R22. F

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F- 2

### REFERENCES



### Carson
, B.L.
, H.V

. Ellis.
, an d J.L

. McCann
, eds

. 1986

. Toxicolog y an d Biologica l Monitorin g o f Metal s in Humans

. Lewi s Publishers
, Inc

. Michigan

. 

### Clayto n an d Clayto n (eds.)

. 1981

. Patty' s Industria l Hygien e an d Toxicology

. Thir d Editio n (revised)

. Volum e 2B

. Wiley-Interscience

.

Ne w York
, Ne w York

. Vol

. 

### 2A : 1492-2060

. Goyer
, R.A

. 1986

. Toxi c Effect s o f Metals

. In : Casaret t an d Doull' s Toxicology : Th e Basi c Scienc e o f Poisons

. 3rd Ed

. Edite d b y C.D

. Klaassen
, M.O

. Amdur
, and J

. Doull

. MacMillan

. Ne w York

. Sax
, N.I

. 1986

. Dangerous Propertie s o f Industria l Materials

. Va n Nostran d Reinhold

. N e w York

. Schroeder
, H.A.
, M

. Mitchene r an d A.P

. Nason

. 1970

. "Zirconium
, niobium , antimon y 

### a n d lea d in rats : Life-tim e studies. " J

. Nutr

. 100:56-69

. Stokinger
, H.E

. 1981

. Th e Metals

. In : Patty' s Industria l Hygien e an d Toxicology

. 

### Edite d b y C.D

. Clayto n an d F.E

. Clayton

. Wiley-Interscience

.

Ne w York
, Ne w York

. Vol

. 2A : 1492-2060

.

22909C-22327/R22. F

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F- 3

### ARSENI C 

### Arsenic
, lik e al l elements , i s an ubiquitou s metal foun d throughou t the environmen t i n relativel y lo w concentrations

. Ther e ar e a number o f medicinal , agricultural , an d industria l use s for arseni c compounds

. Arseni c ha s also bee n use d extensivel y i n 

### medicin e (Fowler' s Solution ) fo r th e treatmen t o f leukemia , psoriasis , asthma , a s a tonic , and i n the formulatio n o f anti-parasitic drugs

. Medicina l dosage s wer e frequentl y a s hig h
a s 3 mg/day
, and at leas t one stud y ha s reporte d aplasti c anemi a amon g user s o f arsenica l drugs (Westhof f e t al

. 1975)

. I n recen t years, wit h the developmen t o f les s toxi c drugs , the medicina l us e o f arseni c ha s decline d (shinish i et al

. 1986)

. Industria l exposur e t o arseni c compound s i s predominantl y throug h inhalatio n an d 

### ingestion

. Abou t four-fifth s o f absorbe d arseni c i s widel y distribute d i n th e tissues , includin g th e liver , abdomina l viscera , bone, skin, an d particularl y hai r an d nails

. I t ca n b e detecte d i n thes e tissue s i n concentration s ove r and abov e thos e resultin g fro m a norma l diet , man y months afte r i t has disappeare d fro m th e urine an d feces

. I t i s importan t t o not e tha t industria l arseni c exposure s primaril y involv e th e trivalen t form , whic h i s considere d t o be somewhat mor e toxic tha n th e pentavalen t for m (Stokinge r 

### 1981)

. The relativel y solubl e arseni c trioxid e ha s a fata l ora l dos e o f 70 t o 18 0 m g (Valleee t al

. 1960)

. 

### Th e acut e effect s associate d wit h bot h ora l an d respiratory arseni c exposure s i n human s hav e bee n investigated

. Inhalatio n o f irritan t an d vesican t arsenical s suc h a s arseni c trioxid e and arseni c trichlorid e can caus e sever e damag e t o th e respirator y syste m a s wel l


### a s coughing , dyspnea , an d ches t pain s (Ishinish i e t al

. 1986)

. Numerou s incidence s o f acut e poisonin g (accidenta l and suicidal ) vi a arseni c ingestio n hav e bee n reported

. One inciden t involve d approximatel y 12,000 Japanes e infant s wh o wer e expose d t o a n infan t 

### formul a tainte d wit h pentavalen t inorgani c arseni c (1. 3 t o 3. 6 mg/day)

. Amon g the expose d population , approximatel y 1 percen t die d o f acut e poisoning , an d th e majorit y o f the survivor s exhibite d one or mor e o f the followin g symptoms : fever , insomnia , 

### anorexia , live r swelling , melanosis , an d disturbe d heart functionin g (WH O 1981)

. Accidenta l ingestio n ha s als o bee n reporte d i n adult s who hav e bee n expose d fo r 2 t o 3 week s t o tainte d so y sauce
. Symptom s include d facia l edema , anorexia , ski n lesions , 

### a n d live r swellin g (Mizut a e t al

. 1956)

. Individual s recoverin g fro m poisonin g b y 22909C-22327/R22. F

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F- 4

### inorganic

arseni c exhibite d disturbance s o f th e periphera l nervou s syste m wit h som e axona l degeneratio n (WH O 1981)

. Chroni c inhalatio n an d ingestio n o f arseni c b y human s ha s bee n reporte d i n a numbe r o f epidemiologica l studies

. Kurtasun e (1972 ) reporte d that population s neighborin g o n an arseni c trioxid e refiner y exhibite d ski n lesions and periphera l neuropath y wit h som e increase s i n chroni c respirator y disease , althoug h a causa l relationshi p wit h arseni c wa s neve r established

. I t ha s bee n theorize d tha t arseni c tend s t o accumulat e i n the ski n because i t contain s hig h concentration s o f sulfhydry l proteins , whic h bin d arsenic

. 

### Severa l studie s hav e describe d th e effect s o f ingestin g water fro m regions wit h high 

### naturall y occurrin g (background ) level s o f arsenic

. Hyperkeratoti c ski n lesions wer e see n i n population s i n Chil e (Borgon o et al

. 1977 ) and Taiwa n (Tsen g 1977)

. I n addition , a conditio n know n a s blackfoo t disease , whic h i s characterize d b y gangrene o f th e lower extremities , wa s reporte d i n th e Taiwanes e population

. Ski n lesions , whic h occu r primaril y o n th e pal m o f th e han d an d th e sol e o f th e foot , hav e bee n reporte d followin g occupationa l exposures (Hamad a ari d Horiguch i 1976)
, fro m therapeuti c administratio n o f Fowler' s Solutio n (Fier z 1965)
, an d fro m th e ingestio n o f naturall y contaminate d drinkin g water

. Other chroni c effect s includ e melanosi s o f th e eyelids , aroun d th e temples , nipples , an d fold s o f th e axillae , an d th e formatio n o f whit e line s o n th e fingernails

. Inhalatio n o f arseni c dust cause d perforatio n o f th e nasa l septu m (Ishinish i 

### etal

. 1986)

. A n epidemiologica l stud y o f femal e worker s at a coppe r smelte r showe d a birt h defec t rat e fiv e time s that o f the control population , but no conclusio n abou t the rol e o f arseni c coul d b e draw n becaus e o f the simultaneous exposur e t o othe r metal s and sulfu r dioxid e (Nordstro m et al

. 1979)

. Arsenic-induce d

terat a hav e bee n note d i n hamster s expose d t o hig h doses o f sodiu m arsenat e ( 6 t o 1 0 mg/kg ) on the eight h da y o f pregnancy

. Defect s include d anencephaly , rena l agenesis , and ri b malformations

. A n increas e i n feta l resorptio n was als o note d (Per m 1977)

. Co-administratio n

o f sodiu m selenit e reportedl y impairs arsenic-induce d teratogenesi s i n animal s (Holmber g and Per m 1969)

. Chromosoma l abnormalitie s hav e bee n observed i n the lymphocyte s o f worker s and patient s expose d t o arseni c (Beckman et al

. 1977 ; Petre s et al

. 1977)

. I n vitr o studie s 

### hav e show n that onl y trivalen t arseni c compound s induce d siste r chromatid exchange s 22909C-22327/R22. F

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F- 5

### (SCEs)

.

Th e relevanc e o f SC E studie s i s questionabl e since lymphocyte s fro m chronicall y expose d individual s suffering fro m blackfoo t diseas e showe d n o difference s i n SC E pattern s whe n compare d t o contro l population s (We n e t al

. 1981)

. Mutagenicit y test s fo r bot h trivalen t an d pentavalen t arseni c compound s wer e negativ e in Salmonella

. 

### E

. coli

. and Chines e hamste r V 9 assays , but positiv e i n Bacillu s subtitle s (Ishinish i et al

. 1986)

. 

### Ski n cancer, i n the for m o f epithelioma , ha s bee n see n at the site s o f arsenic-induce d keratose s (Borgon o et al

. 1977 ; Tsen g et al

. 1977)

. A n increase d incidenc e o f lun g cance r ha s bee n reporte d amon g arseni c smelte r workers , althoug h i t shoul d b e note d 

### tha t thes e worker s wer e als o expose d t o sulfu r dioxid e an d othe r metal s (Ishinish i e t al

. 1986)

. N o associatio n betwee n arseni c exposur e an d othe r form s o f cance r ha s bee n 

### establishe d (IAR C 1980)

. Th e Unite d State s Environmenta l Protectio n Agenc y (USEPA ) ha s classifie d arseni c a s a Clas s A carcinoge n base d o n epidemiologica l data

.

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F- 6

### REFERENCES

Beckman
, G.
, L

. Beckman
, and T

. Nordenson

. 1977

. Environmenta l Healt h Perspectives

. 19:145-146

. Borgono
, J.M.
, P

. Vincent
, H

. Venturino
, an d A

. Infante

. 1977

. Environmenta l Healt h Perspectives

. 19:103-105

. Perm
, V.H

. 1977

. Environmenta l Healt h Perspectives

. 19:215-217

. Fierz
, U

. 1965

. Dermatologica

. 131:41-58

. Hamada
, T

. an d S

. Horiguchi

. 1976

. Japanes e Journa l o f Industria l Health

. 19:103-115

. Holmberg
, R.E

. an d V.H

. Perm

. 1969

. Archive s o f Environmenta l Health

. 19:873-877

. IAR C Monographs

. 1980

. Evaluatio n o f th e Carcinogeni c Ris k o f Chemical s t o Humans

. Som e Metal s an d Metalli c Compounds

. Vol

. 23

. Internationa l Agency fo r Researc h o n Cancer

. Lyon

. Ishinishi
, N.
, K

. Ksuchiya
, M

. Vahter
, an d B.A

. Fowler

. 1986

. (In : Handboo k o n th e Toxicolog y o f Metals. ) 2n d ed

. Vol

. 2 Edite d b y L

. Fribirg
, G.F

. Nordberg
, an d 

### V.B

. Vouk

. Elsevier
, Ne w York

. Kuratsune
, M

. 1972

. Japanes e Publi c Healt h Association
, Repor t o n Environmenta l 

### Health

. 13:3-8

. Mizuta
, N.
, M

. Mizuta
, F

. Ito
, T

. Ito
, H

. Uchida
, H

. Yakama
, T

. Murakami
, F

. Hayashi
, K

. Nakamura
, T

. Yamaguchi
, W

. Mizuta
, S

. Oishi
, an d H

. Matsurimura

. 1956

. Bulleti n o f Yamaguch i Medica l School

. 4:131-150

. 

### Nordstrom
, S.
, L

. Beckman
, an d I

. Nordenson

. 1979

. Hereditas

. 90:297-302

.

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F- 7

### Petres
,

J.
, D

. Baron
, an d M

. Hagedorn

. 1977

. Environmenta l Healt h Perspectives

. 19:223-227

. Stokinger
, H.E

. 1981

. Th e Metals

. (In : Patty' s Industria l Hygien e an d Toxicology. ) Edite d b y C.D

. Clayto n an d F.E

. Clayton

. Vol

. 2A : 1492-2060

. 

### Tseng
, W.P

. 1977

. Environmenta l

Healt h Perspectives

. 19:109-119

. Vallee
, B.L.
, D.D

. Uliuer
, an d W.E.C

. Wacker

. 1960

. America n Medica l Associatio n Archive s o f Industria l Health

. 21:132-151

. Wen
, W.
, T

. Lieu
, H

. Chang
, S

. Wau
, M

. Yau
, an d K

. Jan

. 1981

. Huma n Genetics

. 59:201-203

. 

### Westhoff
, D.D.
, R.J

. Samaha
, an d A

. Barnes
, Jr

. 1975

. Blood

. 45:241-246

. WHO

. 1981

. Environmenta l

Healt h Criteria
, Arsenic

. Worl d Healt h Organization
, 

### Geneva
, pp

. 1-174

.

22909C-22327/R22. F

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F~ 8

### BARIU M 

### Barium
, a n alkalin e eart h metal , i s widel y distribute d i n th e environment

. Smal l amount s ma y accompan y calcium i n practicall y al l biologica l and geologica l systems

. Absorptio n o f barium compound s depend s o n th e solubilit y o f th e compound , bu t average s 2 percen t fo r norma l dietary barium

. I t i s distribute d throughou t th e body , wit h abou t two-third s bein g deposite d i n the bones

. Excretio n o f barium i s slo w and occur s 

### primaril y vi a th e fece s (Carso n e t al

. 1986)

. Th e acut e toxi c effect s o f barium ar e primaril y see n i n muscle

. Excitatio n i s followe d b y paralysis , probabl y du e t o interferenc e wit h potassiu m transport

. A characteristi c 

### featur e o f barium toxicit y i s hypokalemi a (insufficien t potassiu m in th e blood)

. Initia l symptom s ar e gastrointestina l disturbance s (nausea
, vomiting , colic , diarrhea)

. Late r symptom s includ e tinglin g in th e extremitie s an d EC G irregularitie s leadin g t o cardia c fibrillation , general muscl e paralysis , an d deat h fro m respiratory arrest (Goye r 1986)

. 

### T h e chroni c toxic effect s o f barium ar e no t wel l defined , excep t fo r baritosis , a n occupationa l pneumoconiosi

s produce d b y inhalatio n o f barit e (a n insolubl e sulfat e salt , th e mos t commonl y occurrin g barium mineral)

. Th e fe w anima l studie s conducte d hav e 

### foun d onl y nonspecifi c effect s (reduce d longevity ) (Sa x 1986 ; Stokinge r 1981)

. Exposur e t o barium ma y b e vi a inhalatio n or ingestion

. The subchroni c and chroni c inhalatio n Rf C i s 1 x 10" 3 

### mg/kg/da y and 1 x 10" 4 

### mg/kg/day
, respectively

. The 

### subchroni c and chroni c ora l Rf D i s 5 x 10" 2 

### mg/kg/day

. Thes e referenc e dose s wer e determine d fro m a stud y b y Tarasenk o e t al

. (1977)

. Ther e i s no evidenc e fo r carcinogenicit y o r teratogenicity

.

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### REFERENCES



### Carson
, B.L.
, H.V

. Ellis
, an d J.L

. McCann
, eds

. 1986

. Toxicolog y an d Biologica l Monitorin g o f Metal s in Humans

. Lewi s Publishers
, Inc

. Michigan

. Goyer
, R.A

. 1986

. Toxi c Effect s o f Metals

. (In : Casaret t an d Doull' s Toxicology : Th e Basi c Scienc e o f Poisons. ) 3r d Ed

. Edite d b y C.D

. Klaassen
, M.O

. Amdur
, an d J

. Doull

. MacMillan

. Ne w York

. Sax
, N.I

. 1986

. Dangerous Propertie s o f Industria l Materials

. Va n Nostran d Reinhold

. N e w York

. Stokinger
, H.E

. 1981

. Th e Metals

. (In : Patty' s Industria l Hygien e an d Toxicology. ) Edite d b y C.D

. Clayto n and F.E

. Clayton

. Vol

. 2A : 1492-2060

. Tarasenk o e t al

. 1977

. "Bariu m Compound s a s Industria l Poison s (A n Experimenta l 

### Study). " J

. Hyg

. Epidemiol

. Micfobiol

. Immunol

. 21(4):361-373

.

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F-1 0

### BERYLLIU M Berylliu m i s a naturall y occurrin g grayish-whit e har d metal

. Mos t mined berylliu m i s 

### used t o mak e alloy s fo r electroni c an d structura l applications

. The mos t common rout e o f berylliu m exposur e i s vi a inhalation

. Absorptio n i n th e lun g i s rathe r slo w an d contribute s t o th e lon g biologica l half-lif e o f beryllium

. 

### Gastrointestina l absorptio n o f berylliu m i s approximatel y 0.00 6 percen t o f tha t ingested

. Berylliu m i s transporte d i n th e plasma , boun d t o alpha-globulin , transientl y deposite d i n the liver , kidneys , and lungs , and ultimatel y store d i n bone

. Excretio n o f berylliu m i s extremel y slo w and occur s vi a th e urin e (Carso n et al

. 1986 ; Goye r 1986)

. Toxi c effect s associate d wit h berylliu m exposur e ar e typicall y manifeste d i n th e skin, eyes , respiratory system , liver , spleen , an d heart

. Dermal effects , whic h generall y occu r two week s followin g exposure , ma y includ e contact dermatiti s a s wel l a s ski n sensitization

. Acut e systemi c effect s followin g inhalatio n occu r primaril y in th e respiratory tract

. Symptom s includ e coughing , chest pain , an d shortnes s o f breath

. Exposur e t o high level s ma y resul t i n severe chemica l pneumonitis wit h pulmonar y 

### edema (Sax 1986 ; Stokinge r 1981)

. Intoxicatio n du e t o chroni c inhalatio n i s referre d t o a s chroni c berylliu m diseas e o r berylliosis and i s characterize d b y the developmen t o f granulomatous lesion s i n the lungs

. Thi s diseas e progresse s in stage s rangin g fro m a n asymptomatic , non-disablin g phas e t o a severel y disablin g phas e characterize d b y significan t pulmonary patholog y an d heart failure

. Chroni c berylliu m diseas e usuall y ha s a delaye d onse t ( 5 t o 1 0 years ) an d i s o f lon g duratio n wit h exacerbations an d remissions

. Berylliosis ca n occu r following exposur e t o concentration s i n ai r o f 2 /*g/m 3 

### and above

. A s o f 1983 , the U.S

. Berylliu m Cas e Registr y had on recor d onl y 90 0 case s o f berylliu m diseas e nationwid e (ATSD R 1987)

. Granulomatosis an d chemical pneumonitis hav e als o bee n attribute d t o berylliu m exposure , bu t dose-respons e dat a wer e unavailable

. Inhalatio n o f a variet y o f berylliu m compound s i n experimenta l animal s has bee n associate d wit h th e developmen t o f pulmonary tumors

. Rat s chronicall y expose d t o th e berylliu m ore , beryl , develope d lun g tumors

. Other studie s i n whic h rat s wer e expose d
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### t

o berylliu m compound s fo r period s rangin g fro m 6 t o 1 8 months generall y indicat e tha t berylliu m i s a lun g carcinoge n (ATSD R 1987)

. Berylliu m i s classifie d b y th e EP A a s a 

### potentia l huma n carcinoge n (B2)

. Th e basi s fo r thi s classificatio n include s evidenc e o f carcinogenicit y i n thre e anima l specie s b y two routes o f exposure

. The inhalatio n and


### ora l slop e factor s ar e 8.4E+0 0 (mg/kg/day)" 1 

### an d 4.3E+0 0 (mg/kg/day)' 1


### , respectively , 

### a s determine d fro m a stud y b y Wagone r et al

. (1980)

. The subchronic and chroni c ora l Rf D for berylliu m i s 5 x 10" 3 

### mg/kg/day
, based on a 197 5 stud y b y Schroede r an d Mitchener

. A n inhalatio n Rf C i s no t availabl e a t thi s time

.

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F-1 2

### REFERENCES



### Agenc y fo r Toxi c Substance s an d Diseas e Registr y (ATSDR)

. 1987

. Toxicologica l Profil e fo r Beryllium

. U.S

. Publi c Healt h Service

. Carson
, B.L.
, H.V

. Ellis
, an d J.L

. McCann
, eds

. 1986

. Toxicolog y an d Biologica l Monitorin g o f Metal s in Humans

. Lewi s Publishers
, Inc

. Michigan

. Goyer
, R.A

. 1986

. Toxi c Effect s o f Metals

. (In : Casaret t an d Doull' s Toxicology : Th e Basi c Scienc e o f Poisons. ) 3r d Ed

. Edite d b y C.D

. Klaassen
, M.O

. Amdur
, an d J

. Doull

. MacMillan

. Ne w York

. Sax
, N.I

. 1986

. Dangerous Propertie s o f Industria l Materials

. Va n Nostran d Reinhold

. N e w York

. Schroeder
, H.A

. an d Mitchener
, 1975

. "Life-tim e Studie s in Rats : Effects o f Aluminum
, Barium
, Berylliu m an d Tungsten. " J

. Nutr

. 105:421-427

. Stokinger
, H.E

. 1981

. Th e Metals

. (In : Patty' s Industria l Hygien e an d Toxicology. ) Edite d b y C.D

. Clayto n an d F.E

. Clayton

. Vol

. 2A : 1492-2060

. Wagoner
, J.K.
, P.P

. Infant e an d D.L
, Bayliss

. 1980

. "Beryllium : A n Etiologi c Agen t i n t h e Inductio n o f Lun g Cancer
, Nonneoplasti c Respiratory Disease
, an d Hear t Diseas e Amon g Industriall y Expose d Workers. " Environmental

Restoration

. 21:15-34

.

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### CADMIU M 

### Cadmiu m i s a meta l commonl y used fo r th e productio n o f yellow , orange , an d re d pain t pigments

. Representativ e pigment s includ e cadmium selenite , cadmium sulfoselenide , 

### a n d cadmiu m sulfide

. Cadmiu m als o occur s naturall y in food s includin g meat , fish , fruits , grain s an d certai n orga n meats

. Shellfis h contai n th e highes t amount s o f cadmium an d ca n b e a majo r sourc e i n th e diet

. Acut e inhalatio n o f cadmiu m fume s (e.g.
, fro m welding ) cause s a chemica l pneumonitis wit h occasional associate d pulmonar y edema

. Inhalatio n o f concentrations o f 5 mg/m 3 

### fo r ove r 8 hour s hav e bee n fatal , an d sensitiv e individual s ma y show symptom s following exposur e t o concentration s o f 1 mg/m3 

### fo r 8 hours

. Symptom s includ e shortnes s o f breath , general weakness , fever , an d i n sever e cases, respiratory insufficienc y followe d b y shoc k and deat h (Blinde r 1985)

. Respirator y absorptio n o f cadmium i s approximatel y 1 5 t o 3 0 percen t (Klaasse n e t al

. 1986)

. Ingestio n o f toxic amount s o f cadmiu m ca n produc e nausea, vomiting , abdomina l cramps , headache , diarrhe a and , i n sever e cases, shock

. Th e onset o f symptom s usuall y occur s within minutes o f ingestion

. Concentration s

foun d i n drinkin g wate r o f 1 5 mg/ 1 ar e 

### sufficien t t o induc e vomitin g (Nordberg 1972)
, whil e highe r concentration s in protein



### containin g food s ar e require d t o produc e th e sam e symptom s (Fribirg e t al

. 1986)

. 

### T h e protei n metallothioriei n offer s a protectiv e effec t agains t cadmiu m toxicit y i n most organ s (wit h th e exceptio n o f th e kidney ) b y bindin g fre e cadmium

. Pretreatmen t wit h cadmium , zinc, o r mercur y induce s metallothionei n synthesis , whic h i n turn reduce s overal l cadmiu m toxicity

. I t has bee n suggeste d tha t cadmiu m toxicit y in th e kidne y ma y be relate d t o earl y saturatio n o f metallothionei n (Fribirg e t al

. 1986)

. Ther e i s some evidenc e that th e co-administratio n

o f seleniu m wit h cadmiu m minimizes toxicity

. Evidenc e o f toxicit y associate d wit h th e chroni c ingestio n o f cadmiu m i s sparse

. Ingestio n o f foo d an d wate r fro m cadmium-contaminate d

regions o f Japa n wa s relate d t o a diseas e know n a s itai-itai , whic h wa s characterize d b y severe rena l tubula r damage , 

### osteomalacia , osteoporosis , an d le g an d bac k pain (Nomiyam a 1980)

. I t appear s tha t

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### dietar

y deficiencie s o f calcium and vitami n D ma y contribut e t o the diseas e (Fribir g et al

. 1986)

. Mos t case s o f chroni c exposur e t o cadmiu m occu r amon g industria l worker s expose d vi a inhalation

. Concentration s o f cadmiu m i n the workplac e hav e been reporte d at 4 t o 5 mg/m 3


### , althoug h the y ar e typicall y les s tha n 2 mg/m 3



### . Chronic inhalatio n produce s a 

### number o f effects , bu t th e kidne y i s probabl y th e primar y targe t orga n i n humans

. 

### Kidne y damag e i s characterize d b y rena l tubul e damage and associate d tubula r proteinuria

. I n case s o f sever e exposure , glomerula r damag e ma y occur . Physiologica l disturbanc e i n the handlin g o f calciu m and phosphoru s ma y caus e minera l resorptio n fro m th e bone, leadin g t o osteomalaci a an d kidne y ston e formation

. Tubula r damag e 

### ma y persis t or eve n increas e afte r cessatio n o f exposur e and i s probabl y relate d t o cadmiu m bound t o metallothionei n i n th e tubula r cell s (Blinde r 1985)

. Chroni c 

### cadmium exposur e ma y als o produc e lun g damag e leadin g t o emphysema

. Reversibl e anemia , probabl y du e t o hemolysis , ha s also bee n reporte d (Bernar d e t al

. 1979)

. Anima l studie s hav e indicate d that hypertensio n followin g cadmiu m exposur e ma y occu r 

### i n som e species , althoug h epidemiologica l studie s sugges t tha t thi s doe s no t occu r i n human s (Blinde r 1985)

. Th e live r i s anothe r cadmiu m repository , an d som e anima l 

### studie s repor t live r damag e following cadmiu m exposure

. Onl y sligh t changes in live r functio n hav e been reporte d i n man , however (Fribirg et al

. 1986)

. Chronic cadmiu m inhalatio n ha s also bee n show n t o caus e increased excretio n o f calciu m an d phosphoru s in animals , whic h result s in bon e effects simila r t o itai-itai

. Althoug h epidemiologica l studie s sugges t that osteomalaci a ma y occu r amon g worker s (Nicau d e t al

. 1942)
, bon e 

### effect s wer e no t see n b y Fribir g (1986 ) i n worker s wit h relativel y high occupationa l exposures

. Teratogenesi s ha s bee n induce d i n rat s an d hamsters injecte d wit h hig h dose s o f cadmiu m ( 3 mg/k g o r more)

. Defect s include d clef t lips , clef t palates , an d lim b defect s 

### (Fribirg e t al

. 1986)

. Perm an d Hanlo n (1983 ) reporte d tha t materna l pretreatmen t wit h calciu m minimized the incidenc e o f terata

. One epidemiologica l stud y amon g 

### industriall y expose d wome n did no t indicat e significan t increase s in terat a (Cvetkov a 1970)

.
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### Injectio n

o f solubl e cadmiu m salt s a t dose s fro m 1 t o 3 mg/k g i n animal s resulte d i n testicula r damag e (Barlo w an d Sulliva n 1982)

. However
, testicula r damag e has no t been 

### reporte d i n huma n populations , probabl y du e t o th e protectiv e effect s o f metallothionei n (Nordberg 1972)

. 

### T h e epidemiologica l studie s o f Elinde r (1985 ) sugges t a possibl e link o f cadmiu m exposur e t o prostat e and lun g cancer . Studie s b y Takenak a et al

. (1983 ) hav e demonstrate d increase d lun g cance r i n rat s expose d fo r 1 8 months t o cadmiu m chlorid e aerosol s (12. 5 t o 50 mg/m 3 

### )

. Cadmiu m ha s bee n classifie d b y the EP A a s a Clas s B 2 

### potentia l huma n carcinoge n b y inhalatio n onl y based on anima l studies

.

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### REFERENCE

S 

### Barlow
, S.M

. an d P.M

. Sullivan

. 1982

. (In : Reproductiv e Hazard s o f Industria l Chemicals. ^ Edite d b y S.M

. Barlow
, pp

. 137-173

. Academi c Press

. London

. Bernard
, A.
, Bucket
, J.P.
, Roels
, H.
, Masson
, P.
, and R

. Lauwerys

. 1979

. Env

. J

. dim

. 

### Invest

. 9:11-22

. Cvetkova
, R.P

. 1970

. Gig

. Tr

. Prof

. Zabol

. 14:31-33

. Elinder
, C.G

. 1985

. (In : Cadmiu m an d Health : A Toxicologica l an d Epidemiologica l Appraisa l Chapte r 11. ) Edite d b y L

. Friberg
, C.G

. Elinder
, T

. Kjellstrom
, an d 

### G.F

. Nordberg

. CR C Press

. Boc a Raton
, Florida

. Ferm
, V.H

. an d D.P

. Hanlon

. 1983

. (In : Reproductiv e an d Developmenta l Toxicit y o f Metals.) Edite d b y T.W

. Clarkson
, G.F

. Nordberg
, an d P.R

. Sager

. Pleniu m 

### Press

. Ne w York

. pp

. 383-389

. Fribirg
, L

. 1986

. Cadrniu m an d Health

. A Toxicologica l an d Epidemiologica l Appraisal

. Vol

. I
, Genera l Aspects ; Vol

. II
, Effect s an d Response

. CR C Press
, Inc.
, Boc a Raton
, Fla

. Fribirg
, L.
, G.F

. Nordberg
, and B.V

. Vouk

. 1986

. Handboo k o n the Toxicolog y o f Metals

. Vol

. 2 : Specifi c Metals

. 2n d ed

. Elsevier

. Ne w York

. Klaassen
, C.D.
, M.O

. Amdur
, an d J

. Doull

. 1986

. Casaret t an d Doull' s Toxicology : Th e Basi c Scienc e o f Poisons

. 3r d ed

. MacMilla n Publishin g Co

. Ne w York

. Nicaud
, P.
, A

. Lafitte
, an d A

. Gros

. 1942

. Arch

. Mal
, Prof

. Med

. Trav

. Secur

. Soc

. 4:192-202

. Nomiyama
, K

. 1980

. "Recen t Progres s an d Perspective s in Cadmiu m Healt h Effects Studies. " Sci

. Tota l Environ

. 14:199-232

.
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F'1 7

### Nordberg
,

G.F

. 1972

. Environ

. Phys

. Biochem

. 2:7-36

. Takenak a e t al

. 1983

. "Carcinogenicit y o f Cadmiu m Chlorid e Aerosol s i n Wista r Rats. " J

. Natl

. Cance r Inst

. 70:367-373

.

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### CHROMIU M 

### Chromiu m i s a relativel y commo n metal an d exist s i n a numbe r o f oxidatio n states , rangin g fro m Cr 2 + 

### t o Cr 6+



### . Th e trivalen t an d hexavalen t form s ar e o f primar y toxicologica l relevance

. A number o f chromiu m compound s ar e commonl y used a s pain t pigments , includin g lea d chromate , zinc chromates , an d chrome oxides

. Chromiu m i s a cofacto r fo r insuli n action, facilitatin g the attachment o f insulin t o insulin receptors

. I t i s necessar y fo r glucos e toleranc e an d thus ha s bee n classifie d a s a n essentia l element

. Ver y limite d quantitie s ar e required fo r purpose s o f huma n health , 

### however, an d no dietary requirement s hav e bee n established

. Evidenc e fo r chromiu m deficienc y i n man i s spars e (Langar d and Norset h 1986)

. Hexavalen t chromium i s carcinogenic b y inhalation

. I t i s absorbe d mor e readil y tha n th e trivalen t form

. Bot h trivalen t and hexavalen t chromium appea r t o b e toxic vi a the inhalatio n pathwa y (EP A 1991)

. Absorptio n ca n occu r through th e lung s o r th e 

### gastrointestina l tract

. Studie s i n rat s sugges t tha t 3 t o 6 percen t o f chromates ar e absorbe d through th e gastrointestina l tract (Mert z e t al

. 1965)

. Upo n absorption , hexavalen t chromiu m i s rapidl y converte d t o th e trivalen t form , whic h ca n bind t o intracellula r macromolecules

.

Man y o f th e toxi c effect s o f chromium hav e bee n relate d t o thes e macromolecula r complexes

. Anima l studie s show tha t chromiu m i s retaine d i n th e lung , hair, reticuloendothelia l

system , liver , spleen , an d bon e marrow (Wise k e t al

. 

### 1953)
, as wel l as th e testis an d epididymi s (Hopkin s 1965)

. Tossavaine n e t al

. (1980 ) estimate d tha t th e eliminatio n half-lif e fo r chromiu m in welder s range d fro m 1 5 t o 

### 4 1 hours

. Excretio n i s primaril y throug h th e urine

. Acut e effect s associate d wit h chromiu m exposur e hav e bee n reporte d fo r dermal , respiratory , an d ora l routes o f exposure

. Direc t contac t o f broke n ski n wit h hexavalen t chromiu m compound s ma y caus e dee p ulceration s o f th e ski n tha t ar e slo w t o heal

. I n 

### humans, ingestio n ca n produc e loca l ulceratio n o f th e stomac h an d intestina l mucosa , and ingestio n o f ver y hig h dose s ( 5 gm ) ha s bee n reporte d t o caus e gastrointestina l bleeding , flui d loss , an d deat h du e t o cardiovascula r shoc k (Langar d an d Norset h 1986)

. 

### Proxima l tubul e kidne y damage , alon g wit h som e hepati c necrosis , was see n i n human s following ingestio n o f 1 t o 5 g m o f chromat e (Langar d an d Norset h 1986)

. Acut e 22909C-22327/R22. F

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### inhalatio n

o f chrom e dust fo r 4 t o 8 hour s ha s reportedl y induce d bronchial asthm a 

### (Langar d 1980)

. 

### Ther e i s som e evidenc e tha t chromiu m ca n b e transporte d acros s the placenta

. Increase d incidence s o f terat a hav e als o bee n see n i n chick s expose d t o chromat e (0.00 2 t o 0.0 5 mg/egg)

. Thes e effect s includ e reduce d bod y weight , microphthalmia , shor t an d twiste d limbs , ectopi c heart , an d inverte d viscera (Gilan i an d Maran o 1979)

. 

### I n vitr o mutagenicit y studie s hav e shown that chromium ca n caus e DN A damage , siste r 

### chromatid exchanges , an d ca n induc e DN A repair

. Chromosoma l aberrations hav e als o bee n note d i n th e lymphocyte s o f chronicall y expose d workers

. Numerou s epidemiologica l studie s in chromate-expose d

worker s indicat e a correlatio n betwee n chromium exposure s an d respiratory cancer s (Langar d 1983)

. Anima l studie s 

### usin g certai n form s o f hexavalent chromiu m hav e als o provide d sufficien t evidenc e fo r carcinogenicit y (EP A 1984a)

. Th e EP A consider s chromiu m a Clas s A huma n 

### carcinoge n b y inhalatio n only

. A slop e facto r exist s fo r th e inhalatio n o f chromium, base d o n studie s b y Mancus o (1975 ) an d USEP A (EP A 1984a)

. Rf D values fo r 

### chromiu m hav e bee n base d p n studie s b y EP A (1984b)
, MacKenzi e e t al

. (1958)
, an d Lindber g an d Hedenstiern a (1983)

.

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### REFERENCES



### Gilani
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. an d M

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. Langard
, S

. 1980

. Int

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. Langard
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. 1983

. (In : Chromium. ) Edite d b y D< Burrows

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### Florida

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. Langard
, S

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. an d G

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. Mancuso
, T.F

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. (Cite d i n U S EP A 1984 ) Mertz
, W.
, E.E

. Roginski
, an d R.C

. Reba

. 1965

. America n Journa l o f Physiology

. 209:489-494

. Tossavainen
, A.
, Nurminen
, P

. Mutanen
, an d S

. Tola

. 1980

. Britis h Journa l o f Industria l Medicine

. 37:285-291

.

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### U.S

. Environmenta l Protectio n Agency (EPA)

. 1984a

. "Healt h Effect s Assessmen t fo r Hexavalen t Chromium. " Prepare d b y th e Offic e o f Healt h an d Environmenta l Assessment
, Environmenta l Criteri a an d Assessmen t Office
, Cincinnati
, O H fo r 

### th e Offic e o f Emergenc y an d Remedia l Response
, Washington
, DC

. U.S

. Environmental Protectio n Agency (EPA)

. 1984b

. Offic e o f Emergenc y an d Remedia l Response

. Washington
, D.C

. EPA/540/1-86-019

. U.S

. Environmenta l Protectio n Agenc y (EPA)

. 1991

. Healt h Effect s Assessmen t Summar y Table s (HEAST)

. Annua l FY-1991

. OSWE R (OS-230)

. 

### Wisek
, W.J
, L.B

. Whitney
, U.S.G

. Kuhn
, an d C.L

. Comar

. 1953

. Proc

. Soc

. Exp

. Biol

. Med

. 84:610-615

.

22909C-22327/R22. F

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F-2 2

### COPPE R 

### Coppe r i s a widel y distribute d elemen t and i s an essentia l componen t o f numerou s enzym e systems within the body

. (Carso n et al

. 1986 ) The route s o f exposur e includ e inhalation , ingestion , and ski n and eye contact

. Absorptio n o f coppe r fro m th e gastrointestina l tract i s regulate d b y bod y store s o f copper

. Onc e absorbed , coppe r i s initiall y transporte d i n th e plasma , bound t o albumin 

### an d late r boun d t o 2-ceruloplasmi n (Stokinge r 1981)

. Coppe r i s excrete d vi a th e bil e and coppe r homeostasi s i s maintaine d thi s way . Coppe r i s store d i n the live r and bon e marro w an d bind s t o metallotheionein

. Th e mos t importan t rout e o f exposur e t o coppe r i s throug h ora l intake

. Th e toxicologica l effect s o f coppe r ar e exerte d i n th e respiratory system , gastrointestina l system , liver , hematologi c .system, kidneys , an d ski n (Sa x 1986)

. Acut e toxicosis fro m th e ingestio n o f excessiv e amount s o f coppe r produce s damag e t o th e live r an d gastrointestina l tract

. Advers e healt h effect s associate d wit h acut e exposur e includ e vomiting , gastrointestina l bleeding , re d bloo d cel l destruction , jaundice , lo w bloo d pressure , and coma . Chroni c ingestio n toxicosis i s rar e and onl y occur s i n individual s wit h hepatolenticula r degeneratio n (Wilson' s Disease ) whic h result s i n abnormall y hig h absorption , retention , and storag e o f coppe r b y the body

. Derma l exposur e result s in itching , erythema , an d dermatitis

. Respiratory symptom s following inhalatio n includ e congestio n o f th e nasa l an d pharyngea l mucou s membranes an d possibl y nasa l septu m ulceratio n o r perforation

. Othe r symptom s following inhalatio n 

### includ e nausea, metal fum e fever , an d discoloratio n o f th e ski n an d hai r (Goye r 1986)

. T h e subchroni c an d chroni c ora l Rf D fo r coppe r i s 3.7E-0 2 (mg/kg-day)

. Th e ingestio n 

### Rf C ha s not yet been determined

. Th e carcinogenicit y o f coppe r i s no t classifie d (Grou p D ) b y th e EPA

. Thi s classificatio n i s based on the absenc e o f huma n data , inadequat e animal data , and equivoca l mutagenicit y data

. A chroni c healt h hazard assessmen t fo r noncarcinogenic effect s i s no t 

### availabl e a t this tim e (EP A 1991)

.

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### REFERENCES



### Carson
, B.L.
, H.V

. Ellis.
, an d J.L

. McCann
, eds

. 1986

. Toxicolog y an d Biologica l Monitorin g o f Metal s i n Humans

. Lewi s Publishers
, Inc

. Michigan

. Goyer
, R.A

. 1986

. Toxi c Effect s o f Metals

. (In : Casaret t an d Doull' s Toxicology : Th e Basi c Scienc e o f Poisons. ) 3r d Ed

. Edite d b y CD

. Klaassen
, M.O

. Amdur
, an d J

. Doull

. MacMillan

. Ne w York

. Sax
, N.I

. 1986

. Dangerous Propertie s o f Industria l Materials

. Va n Nostran d Reinhold

. N e w York

. Stokinger
, H.E

. 1981

. Th e Metals

. (In : Patty' s Industria l Hygien e an d Toxicology.' ) Edite d b y C.D

. Clayto n an d F.E

. Clayton

. Vol

. 2A : 1492-2060

. U.S

. Environmenta l Protectio n Agency (EPA)

. 1991

. Healt h Effect s Assessmen t Summar y Table s (HEAST)

. Annua l FY-1991

. OSWER (OS-230)

.

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F~2 4

### LEA D 

### Lea d i s a metal wit h numerou s industria l applications

. Us e o f lea d i n pain t pigment s 

### wa s widesprea d i n the past , but ha s bee n curtaile d i n recen t years
. Typica l lead-base d pain t pigment s includ e lea d chromate , dibasi c lea d phosphite , an d variou s lea d oxides

. Lead toxicit y i s generall y a functio n o f age-dependen t absorption

. Gastrointestina l 

### absorptio n ha s bee n reporte d fro m 5 t o 1 5 percen t i n adult s wit h les s tha n 5 percen t retention , and approximatel y 4 2 percen t i n childre n wit h approximatel y 3 2 percen t 

### retention

. Respirator y absorptio n i s eve n greater

. Approximatel y 9 0 percen t o f respire d particle s (0. 5 jwm or smaller ) are absorbed

. 

### The exten t o f lea d absorptio n i n th e gastrointestina l tract ha s bee n linke d t o a number o f dietary factors

. Absorptio n i s enhance d b y mil k products , lo w calciu m an d vitamin D levels , fasting , o r iro n deficiencies

. Absorbe d lea d tend s t o deposi t int o tw o pool s in th e 

### body , th e skeleto n an d sof t tissue

. Lead i n th e skeleto n i s release d ver y slowly , wit h a biologi c half-lif e o f approximatel y fiv e years
. Lead i n th e sof t tissu e has a muc h shorte r half-life , approximatel y 3 t o 4 weeks

. Tsuchiy a (1986 ) report s tha t 9 0 percen t o f ingeste d lea d i s excrete d i n th e feces , whil e mos t absorbe d lea d i s excrete d i n th e urine

. T h e majo r target s fo r lea d toxicit y ar e th e centra l nervou s system , hematopoieti c system , gastrointestina l tract , an d rena l system

. Gastrointestina l coli c i s th e most commo n effec t o f acut e lea d ingestipn

. Th e initia l stage s o f lea d intoxicatio n includ e anorexia , dyspepsia , and constipatio n followe d b y colic , whic h i s characterize d b y a diffus e paroxysma l abdomina l pain

. Th e ski n i s usuall y pal e an d bloo d pressur e ma y increase , 

### reflectin g sporadi c contractio n o f th e smoot h muscle

. Lead encephalbpath y ha s als o been reported

. Althoug h i t i s rar e i n adults , numerou s case s hav e bee n reporte d i n childre n exhibitin g pica

. Pic a i s characterize d b y a cravin g 

### f o r an d consumptio n o f unnatural article s o f food , e.g. , soil , clay , etc

. I n som e cases , th e encephalopath y syndrom e i n childre n i s characterize d b y vomiting , apathy , drowsiness , 

### stupor , ataxia , hyperactivity , an d othe r neurologica l symptoms

. Lead level s in th e bloo d 

### typicall y range fro m 8 0 t o 30 0 ^g/10 0 ml (Tsuchiy a 1986)

. Lead encephalopath y ma y

22909C-22327/R22. F

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### b

e characterize d b y a sudde n onse t o f seizure s and delirium , wit h commonl y associate d papilledema

. I n sever e cases, com a and cardiorespiratory arrest ma y occur . Anemia i s a commo n sympto m amon g worker s chronicall y expose d t o lead

. Lead

induce d anemi a i s probabl y due t o bot h an inhibitio n o f hemoglobi n synthesis and a shortene d lifespa n o f th e erythrocytes

. Decrease d hemoglobin synthesis i s apparentl y 

### du e t o inhibitio n o f severa l ke y enzyme s (Wad a e t al

. 1972)

. Chroni c exposur e als o affect s th e central an d periphera l nervou s systems , particularl y i n children

. Effect s includ e menta l deterioration , hyperkineti c o r aggressiv e behavior , sleepin g difficulties , an d vomiting

. Subclinica l effect s hav e als o bee n note d i n childre n wit h moderatel y 

### elevate d bloo d lea d level s (4 0 t o 8 0 ^tg/10 0 ml)

. Recen t wor k b y Bellinge r et al

. (1987 ) suggest s that feta l bloo d level s a s low a s 1 0 /ig/10 0 m l (compare d t o background level s o f 6 t o 7 /ixg/10 0 ml ) ma y caus e significan t deficiencie s i n learnin g abilit y durin g th e firs t tw o year s o f life

. 

### Neura l effect s hav e bee n reporte d in chronicall y expose d workers

. Symptom s includ e 

### impairmen t o f memory, attention , concentration , ari d psychomoto r performanc e (Arnvi g et al

. 1980)

. Periphera l neuropath y i s characterize d clinicall y b y wrist and foo t dro p and subclinicall y b y reduce d periphera l nerv e conduction

. Chroni c gastrointestina l effects ma y includ e los s o f appetite , upse t stomach , diarrhea , o r constipation

. Degenerativ e change s hav e bee n note d i n the proxima l tubula r cell s o f the kidne y and ar e associate d wit h swellin g o f th e mitochondria

. Long-ter m exposur e produce s a characteristi c typ e 

### o f nuclear-inclusio n

bod y in th e tubula r cell s o f th e kidney

. Thes e bodie s ar e compose d


### o f a lead-protei n complex an d apparentl y functio n as a protectiv e mechanis m fo r othe r organelles

. Long-ter m exposur e i s als o associate d wit h intens e interstitia l fibrosis , tubula r atrophy , an d dilation

. Ther e i s glomerula r involvemen t a t th e lat e stage s o f chroni c exposur e (Emmerso n 1968)

. Ther e i s littl e evidenc e fo r eithe r hepati c o r cardiovascula r effect s associate d wit h chroni c lea d exposure

. Animal studie s sugges t tha t lea d ma y b e a teratogen

. Lead and cadmiu m produc e a synergisti c teratogenic effec t (Per m 1969)
, wherea s zin c i s reporte d t o hav e an antagonisti c effec t o n lea d toxicit y (Willoughb y e t al

. 1972)

.

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### Lead

ha s bee n show n t o induc e cance r i n th e kidney s o f rodent s unde r condition s o f high 

### exposur e (Moor e an d Meredit h 1979)

. However
, there i s n o evidenc e o f rena l carcinogenicity , no r does lea d appea r t o produc e chromosoma l anomalie s i n humans

. Lea d ha s bee n classifie d a s a Clas s B 2 potentia l huma n carcinogen base d o n anima l studie s performe d b y EP A (EP A 1984 , 1986)

. A slop e facto r ha s no t bee n determine d ye t fo r lead

. Infant s and childre n (age s 0-7 ) hav e bee n identifie d a s the population s mos t vulnerabl e 

### t o lea d exposure

. A chil d absorb s a greate r fractio n o f a n ora l dos e o f lea d tha n doe s a n adult , an d a child' s developin g nervou s syste m i s mor e sensitiv e t o lead

. I n addition , 

### childre n are know n t o inges t mor e soi l (e.g.
, mouthin g behavior ) tha n adults , and soi l i s a know n reservoi r o f metal s i n th e environment

. Furthermore
, variou s physiologi c an d anatomi c factor s resul t i n greate r depositio n o f airborne lea d i n th e respiratory tract o f infant s an d children

. Finally
, transplacenta l transfe r o f lea d ca n occu r tha t result s i n a lea d burde n in th e fetus , increasin g exposur e durin g infancy an d earl y childhood

. Considerabl e controvers y exist s regardin g th e biologica l significanc e o f som e o f th e effects attribute d t o chroni c lo w lea d exposur e an d th e bloo d lea d level s a t whic h the y occur . The EP A ha s state d that a bloo d lea d leve l o f 1 0 jug/dl i s a leve l o f concern ; i f 

### 9 5 percen t o f childre n i n a give n populatio n hav e level s exceedin g this , th e EP A recommend s communit y educatio n programs

. 

### Ther e i s a currentl y n o Rf D fo r lea d becaus e a threshol d fo r neurotoxic effect s doe s no t appea r t o exist

. U.S

. EP A recommend s th e us e o f a model , th e Integrate d Uptake / 

### Biokineti c Mode l (IUBK ) (EP A 1991a,b)
, t o estimat e bloo d lea d value s resultin g fro m exposur e t o lead

. Th e IUB K mode l provide s a mean s fo r evaluatin g th e relativ e contributio n o f variou s media t o lea d exposure

. Th e mos t recen t versio n availabl e o f th e IUBR
, versio n 0.50 , wil l b e use d i n this assessment

.

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F-2 7

### REFERENCES



### Arnvig
, E.
, P

. Gradjean
, an d J

. Beckmann

. 1980

. Toxicol

. Lett

. 5:399-404

. 

### Bellinger
, D.
, A

. Leviton
, C

. Waternaux
, H

. Needleman
, an d M

. Rabinowitz

. 1987

. Ne w Englan d Journa l o f Medicine

. 316:1036-1043

. Emmerson
, B.T

. 1968

. Arthritis Rhemm

. 11:623-643

. Perm
, V.H

. 1969

. Experieutia

. 25:56-57

. 

### Moore
, M.R

. and P.A

. Meredith

. 1979

. Arch

. Toxicol

. 42:87-94

. Tsuchiya
, K

. 1986

. (In : Handboo k o n th e Toxicolog y o f Metals. ) Vol

. 2

. 2n d ed

. Edite d b y L

. Friberg
, G.F

. Nordberg
, an d V.B

. Vouk

. Elsevier

. Ne w York

. U.S

. Environmenta l Protectio n Agenc y (EPA)

. 1984

. "Healt h Effect s Assessmen t fo r Lead. " Prepare d b y th e Offic e o f Healt h an d Environmenta l Assessment
, Environmenta l Criteri a an d Assessmen t Office
, Cincinnati
, O H fo r th e Offic e o f Emergenc y an d Remedia l Response
, Washington
, DC

. U.S

. Environmenta l Protectio n Agenc y (EPA)

. 1986

. "Ai r Qualit y Criteri a fo r Lead. " June
, 198 6 an d Addendum
, September
, Offic e o f Healt h an d Environmenta l Assessment
, Researc h Triangl e Park
, NC

. EP A 600/8-83-028F

. NTI S P B 87-142378

. 

### U.S

. Environmenta l Protectio n Agency (EPA)

. 1991a

. Technica l Suppor t Document o n 

### Lead

. Offic e o f Healt h an d Environmenta l Assessment

. U.S

. Environmenta l Protectio n Agency (EPA)

. 1991b

. User s Guid e fo r Lead: A P C softwar e applicatio n o f th e Uptake/Biokineti c

Mode l (Versio n 5.0)

. Offic e o f Healt h an d Environmenta l Assessment

.

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F-2 8

### Wada
,

O.
, Y

. Yano
, K

. Toyokawa
, S
, Suzuki
, an d H

. Katsunuma

. 1972

. Industria l Health

. 19:84-92

. Willoughby
, R.A.
, E

. MacDonald
, B.J

. McSherry
, an d G

. Brown

. 1972

. Vet

. Rec

. 

### 6:382-383

.

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### MANGANES E 

### Manganes e i s used in th e manufactur e o f stee l alloys , electrica l coils , batteries , weldin g rods , dyes , ceramics , matches , glass , an d fertilizers

. I t i s a n essentia l elemen t an d cofacto r fo r a number o f physiologi c enzymati c reactions (Sa x 1986)

. 

### Route s o f exposur e includ e inhalation , percutaneous absorption , an d ingestion

. Gastrointestina l absorptio n o f ingeste d manganes e i s estimate d at 4 percent

. Absorbe d manganes e i s transporte d i n plasma , boun d t o beta-globulin

. I t i s widel y distribute d i n th e tissues , wit h th e greates t concentration s occurrin g i n th e intestines , kidney , liver , pancreas , and certai n nerv e cell s o f the brain

. Manganes e i s excrete d i n the fece s wit h
a biologica l half-lif e o f 3 7 days (Goye r 1986)

. Manganes e i s no t toxi c vi a derma l exposure

. Local effect s o f inhalatio n exposur e includ e irritatio n o f th e eye s an d respirator y tract

. Amon g Individual s exposed , ther e i s a marked variatio n i n susceptibilit y t o manganes e toxicosis

. Inhalatio n toxicosis i s manifeste d as tw o diseas e entities : (1 ) manganes e pneumonitis , an d (2 ) manganes e psychosis

. Manganes e pneumoniti s i s du e t o acut e inhalatio n exposur e an d i s characterize d b y epithelia l necrosi s an d mononuclea r proliferatio n (Goye r 1986 ; Stokinge r 1981)

. A n epidemiologi c surve y (Roel s e t al

. 1984 ) indicate d a n increase d incidenc e i n respirator y diseas e i n occupationa l exposur e situations

. Manganes e psychosis i s characterize d b y th e onse t o f a psychiatri c disorde r wit h symptom s includin g irritability , difficult y walking , impulsiv e behavior , menta l confusion , speec h disturbances , aggressiveness , an d hallucinations

. Wit h continue d exposure , th e conditio n develop s int o a Parkinson-lik e syndrom e wit h simila r symptom s an d pathologica l changes

. Live r cirrhosi s i s als o frequentl y observed wit h chroni c manganes e exposur e (Goye r 1986 ; 

### Stokinge r 1981)

. Manganes e i s classifie d b y the EP A a s Clas s D ; huma n carcinogenicit y canno t b e determined

. This classificatio n i s base d on the inadequac y o f existin g studie s t o asses s t h e carcinogenicit y o f manganese
. Th e referenc e dos e fo r th e assessmen t o f noncarcinogeni c effect s associate d wit h ora l manganese exposur e ha s bee n withdraw n fro m IRIS

. Mediu m confidenc e i s place d o n this valu e du e t o th e hig h confidenc e in

22909C-22327/R22. F

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### availabl

e huma n intak e studie s an d mediu m confidenc e i n th e databas e fro m whic h th e referenc e dos e was derived

. Th e inhalatio n Rf D fo r manganes e i s 1.4E-0 3 mg/kg/day

.

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. F-3 1

### REFERENCES



### Goyer
, R.A

. 1986

. Toxi c Effects o f Metals

. In : Casaret t an d Doull' s Toxicology : Th e Basi c Scienc e o f Poisons

. 3r d Ed

. Edite d b y C.D

. Klaassen
, M.O

. Amdur
, and J

. Doull

. MacMillan

. Ne w York

. Roels
, H.
, R

. Lauwerys
, J-P

. Buchet et al

. 1984

. "Epidemiologica l surve y amon g worker s expose d t o manganese : Effect s on lung , central nervou s system , and 

### som e biologica l indices. " A m J

. Med

. 11:307-327

. Sax
, N.I

. 1986

. Dangerous Propertie s o f Industria l Materials

. Va n Nostran d Reinhold

. N e w York

. 

### Stokinger
, H.E

. 1981

. Th e Metals

. In : Patty' s Industria l Hygien e an d Toxicology

. Edite d b y C.D

. Clayto n an d F.E

. Clayton

. Vol

. 2A : 1492-2060

.

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### MERCUR Y



### Mercur y i s used a s a componen t o f batteries , industria l and contro l instruments , 

### cathodes , wir e an d switchin g devices , fluorescen t lamps , an d a s a laboratory reagen t and/o r catalyst

. Ther e ar e thre e form s o f mercur y o f toxicologica l importance : ( 1 ) elementa l (mercur y vapor)
, (2 ) inorgani c (mercuri c an d mercurou s salts)
, an d (3 ) organi c (methy l mercury ) compound s (Sa x 1986)

. 

### Routes o f exposur e fo r mercur y includ e inhalation , ingestion , ski n absorption , an d ey e contact

. Mercur y dispositio n i s influence d b y valenc e stat e an d anioni c component

. Depositio n an d retentio n o f mercur y i n th e lung s followin g mercur y vapo r inhalatio n i s approximatel y 8 0 percent

. Elementa l mercur y ha s a high affinit y fo r re d bloo d cell s an d th e centra l nervou s system

. Gastrointestina l absorptio n o f mercur y i s .0 1 percen t fo r metalli c mercury, 7 percen t fo r inorgani c mercury, and 9 0 t o 9 5 percen t fo r organic 

### mercury . Inorganic mercur y concentrates i n the kidneys , wherea s organi c mercur y concentrate s i n the brain

. Al l form s o f mercur y hav e been demonstrate d t o cros s the placenta , an d neonata l exposur e t o mercur y ma y occu r throug h nursing

. Excretio n o f
mercur y i s vi a urine an d feces

. Th e biologica l half-lif e o f mercur y i s dependen t upo n 

### the for m o f mercur y absorbe d and ranges fro m 3 5 t o 9 0 days (Carso n et al

. 1986 ; Goye r 1986)

. 

### Toxicologica l manifestation s o f mercur y occu r i n th e skin , respiratory system , centra l
nervou s system , kidneys , and eyes
. Mercur y vapo r inhalatio n ma y produc e an acute , corrosiv e bronchiti s and interstitia l pneumonitis and ma y b e associate d wit h symptom s affecting th e central nervou s system

. Symptom s following exposur e includ e coughing , difficult y breathing , chest pains , insomnia , irritability , headaches , fatigue , weakness , an d 

### tremors

. Chronic inhalatio n exposur e i s associate d wit h degeneratio n o f th e centra l
nervou s syste m whic h i s manifeste d a s neurologic and psychiatri c abnormalities

. Ingestio n o f mercuri c mercur y produce s corrosiv e ulceratio n an d bleedin g o f th e 

### gastrointestina l tract , shock , circulator y collapse , an d renal failur e (Stokinge r 1981 ; Goye r 1986)

. 

### Mercurou s compound s ar e les s toxic tha n mercuri c salt s an d ar e associate d wit h a hypersensitivit y respons e i n childre n referre d t o a s acrodynia o r "pin k disease. " Mercur y 22909C-22327/R22. F

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### toxicosi

s due t o chroni c exposur e t o inorgani c mercur y i s typicall y manifeste d b y one or 

### mor e o f th e following fou r signs : (1 ) steatorrhea , (2 ) gingivitis , (3 ) irritability , an d (4 ) muscula r tremors

. I n term s o f toxicit y an d healt h effect s fro m environmenta l exposures , methy l mercur y i s th e most importan t for m o f mercury . Organi c mercur y exposur e produce s degeneratio n an d deat h o f centra l an d periphera l nervou s syste m tissues , wit h 

### resultin g neurologi c abnormalities

. Th e majo r lexicologica l effects includ e paresthesia , ataxia , dysarthria , an d deafness

. Mercur y exposur e ma y als o produc e a discoloratio n o f the lens and corne a o f the eye . Direct contac t ma y produc e a contac t dermatiti s wit h possibl e bliste r formatio n (Carso n e t al

. 1986 ; Goye r 1986)

. Mercur y i s not classifiabl e (Grou p D ) a s t o huma n carcinogenicit y base d on EP A weight



### of-evidence

. Thi s classificatio n i s base d o n th e absenc e o f human dat a an d inadequat e anima l an d supportin g data

.

22909C-22327/R22. F

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F-3 4

### REFERENCES



### Carson
, B.L.
, H.V

. Ellis.
, an d J.L

. McCann
, eds

. 1986

. Toxicolog y an d Biologica l Monitorin g o f Metal s in Humans

. Lewi s Publishers
, Inc

. Michigan

. Goyer
, R.A

. 1986

. Toxi c Effects o f Metals

. (In : Casaret t an d Doull' s Toxicology : Th e Basi c Scienc e o f Poisons. ) 3rd Ed

. Edite d b y CD

. Klaassen
, M.O

. Amdur
, and J

. Doull

. MacMillan

. Ne w York

. Sax
, N.I

. 1986

. Dangerou s Propertie s o f Industria l Materials

. Va n Nostran d Reinhold

. N e w York

. 

### Stokinger
, H.E

. 1981

. Th e Metals

. (In : Patty' s Industria l Hygien e an d Toxicology. ^ Edite d b y C.D

. Clayto n and F.E

. Clayton

. Vol

. 2A : 1492-2060

.

22909C-22327/R22. F

01-28-93(4:26pm)/RPT/1 6

F-3 5

### ZIN C 

### Zin c i s use d in woo d preservatives , dr y battery cells , textiles , solderin g flux , oi l refining , oi l and ga s wel l operations , and i n the manufactur e o f paper , dyes , activate d carbon, chemicals , deodorants , an d disinfectant s (Stokinge r 1981)

. Zin c i s a nutritionall y essentia l element

. Routes o f exposur e t o zin c includ e inhalatio n o f dus t an d fumes , ingestion , an d ski n an d ey e exposure

. Th e gastrointestina l absorptio n o f zin c i s approximatel y 2 0 t o 3 0 percent

. 

### Zin c absorptio n i s though t t o occu r vi a a carrier-mediate d proces s and i s homeostaticall y controlled

. Absorbe d zin c i s boun d t o albumi n an d beta-macroglobin

.

Th e highes t concentratio n o f zin c i s deposite d i n th e prostate , wit h significan t depositio n als o occurrin g i n th e bon e an d muscle

. Excretio n occur s predominantl y i n th e feces

. Th e biologica l half-lif e o f zin c i s estimate d t o range fro m 16 2 t o 50 0 days

. The effect s o f zin c toxicosi s ar e see n i n the respirator y system , skin, and eye s (Sa x 1986)

. Toxi c effect s associate d wit h derma l exposur e includ e dermatitis an d chemica l burn s du e t o th e corrosivit y o f zin c compounds , and ski n sensitizatio n characterize d b y eczematoi d dermatitis

. Occupationa l inhalatio n o f zinc has no t bee n reported

. Inhalatio n o f zin c chlorid e result s i n sever e respirator y irritatio n and ma y b e accompanie d b y pulmonar y edema , hemorrhagic alveolitis , an d bronchopneumoni a

(Goye r 1986 ; Carso n 1986)

. Zin c ha s no t bee n evaluate d b y th e EP A fo r evidenc e o f huma n carcinogenic potential

. T h e referenc e dos e fo r th e evaluatio n o f noncarcinogenic healt h effects associate d wit h subchroni c and chroni c ora l zin c exposur e i s 2. 0 E-0 1 mg/kg/day

. A referenc e dos e for 

### th e assessmen t o f chroni c inhalatio n exposur e i s no t available

.

22909C-22327/R22. F

01-28-93(4:26pm)/RPT/1 6

F-3 6

### REFERENCE

S 

### Carson
, B.L.
, H.V

. Ellis.
, an d J.L

. McCann
, eds

. 1986

. Toxicolog y an d Biologica l Monitorin g o f Metal s in Humans

. Lewi s Publishers
, Inc

. Michigan

. Goyer
, R.A

. 1986

. Toxi c Effect s o f Metals

. (In : Casaret t an d Doull' s Toxicology : Th e Basi c Scienc e o f Poisons. ) 3r d Ed

. Edite d b y C.D

. Klaassen
, M.O

. Amdur
, and J

. Doull

. MacMillan

. Ne w York

. Sax
, N.I

. 1986

. Dangerou s Propertie s o f Industria l Materials

. Va n Nostran d Reinhold

. N e w York

. Stokinger
, H.E

. 1981

. Th e Metals

. (In : Patty' s Industria l Hygien e an d Toxicology. ) Edite d b y C.D

. Clayto n an d F.E

. Clayton

. Vol

. 2A : 1492-2060

.

22909C-22327/R22. F

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F-3 7

### INTERPRETATIO N O F ASSES S OUTPU T

!?: <•:- : - 22909C-22327/R22;E T 0 1 ;2S-93(4:26pm)/RPT/1 6 

### F-3 8

••• •

### INTERPRETATIO N O F ASSES S OUTPU T 

### ASSES S provide s th e cance r ris k an d hazard inde x calculation s fo r al l exposur e pathway s evaluate d a t a site

. Al l informatio n neede d t o verif y calculation s i s provided

. Dat a ar e organize d an d reporte d i n categorie s liste d below :
• Chemica l Lis t • Receptor/Pathwa y

Summar y • Pathwa y Summar y • Intak e Factor s • Medi a Concentration s Number s in ASSES S ar e writte n in scientifi c notation

. Th e numbe r following th e E i s a powe r o f 10 ; s o 1.61E-0 2 i s 0.0161

. CHEMICAL LIS T 

### Thi s shee t list s th e EP A toxicit y values fo r eac h chemical

. Whe n available , value s ar e liste d fo r bot h ora l an d inhalatio n exposur e routes fo r eithe r subchronic o r chroni c exposur e duration s (referenc e doses o r RfDs ) o r fo r carcinogenic ris k (slop e factor s o r SF)

. Thes e values ar e obtaine d usin g th e hierarch y recommende d b y EPA' s Ris k Assessmen t Guidanc e fo r Superfun d site s (EP A 1989b , 1991b)

. Th e firs t an d secon d source s in thi s hierarch y ar e (1 ) IRI S (Integrate d Ris k Informatio n System)
, a n on-lin e compute r databas e o f chemical ris k informatio n (EP A 1992d)
, an d (2 ) HEAS T (Healt h Effects Assessmen t Summar y Tables ) (EP A 1992e)
, EP A table s whic h ar e periodicall y up-dated

. Toxicit y values (RfD s an d SFs ) d o no t ye t exis t fo r man y chemicals

. Fo r ris k assessment purposes , whe n thi s i s true , a chemical ma y b e discusse d qualitativel y i n th e text o f th e repor t bu t wil l no t be reporte d quantitativel y in ASSESS

. RfDs ma y b e derive d fo r eithe r subchronic o r chroni c exposure s and ar e used t o calculat e subchronic o r chroni c hazar d quotients , respectively

. A subchronic Rf D ma y no t exis t fo r a particula r chemical eve n thoug h a chronic Rf D exists

.
22909C-22327/R22. F

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F-3 9

### RECEPTOR/PATHWA

Y SUMMAR Y 

### T h e Recepto r Summar y sheet list s eac h recepto r an d th e potentia l healt h risk s associate d wit h chemica l exposur e fro m al l pathway s quantitated

. Th e potentia l advers e healt h 

### risk s ar e divide d int o two exposur e scenarios : averag e exposur e and reasonabl e maximum exposur e (RME)

. Fo r eac h exposur e scenario, potentia l healt h impact s ar e segregate d int o two categories : cance r ris k an d a hazard index fo r bot h subchronic an d chroni c exposures

. The value s show n on thi s sheet sho w the total carcinogeni c risk s and 

### noncarcinogenic hazard s associate d wit h average an d RM E exposure s fo r eac h recepto r listed

. 

### RfDs ar e used wit h a leve l o f exposur e durin g a specifi c tim e perio d and expresse d a s a rati o o r hazard quotient

. Accordin g t o th e EP A (EP A 1989b , 1991b)
, generally , th e 

### greate r th e valu e o f th e hazard quotien t (o r hazar d index)
, th e greate r th e leve l o f
concern fo r healt h impacts

. Anothe r are a o f EP A guidanc e state s tha t becaus e H I i s no t a probabilit y function , a n increase d value doe s no t indicat e a degre e o f risk

. The hazard inde x i s the su m o f a number o f hazard quotient s fo r a particula r pathway

. A hazard 

### index o f on e mean s th e estimate d chemical intak e equal s th e referenc e dose

. Whe n thi s occurs, a mor e detaile d evaluatio n o f th e sit e i s indicated

. Whe n th e H I i s les s tha n one , furthe r evaluatio n i s generall y no t warranted , an d th e exposur e i s expecte d t o b e saf e i f 

### the H I i s equa l t o or les s tha n one targe t organ concept

. A chemical' s slop e facto r i s multiplie d b y th e lifetim e dail y average intak e o f tha t chemica l i n a certai n mediu m t o estimat e the incrementa l probabilit y (o r risk ) o f an individua l developin g cance r durin g a lifetime

. Whe n a recepto r potentiall y i s expose d 

### t o a variet y o f chemical s (in a give n medium ) possessin g slop e factors , al l o f th e product s a r e summe d t o yiel d th e tota l cance r ris k fo r thos e chemical s fo r tha t specifi c exposur e 

### pathway

. Thi s ris k number i s acceptabl e i f i t i s les s tha n IE- 4 or 10" 4 

### or 1 i n 10,000

. Recepto r Detail Repor t Thi s repor t i s include d in th e Receptor/Pathwa y

Summar y Shee t becaus e i t detail s th e 

### carcinogenic ris k an d th e noncarcinogeni c hazar d fo r eac h o f th e receptor' s exposur e 

### pathway(s ) fo r bot h th e average an d RM E exposur e scenarios

. Tota l carcinogenic risks 22909C-22327/R22. F

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F-4 0

### and

noncarcinogeni c hazard s for eac h recepto r are als o given

. Eac h recepto r ma y hav e 

### a number o f exposur e pathways

. A n exposur e pathwa y i s a rout e tha t a chemica l ma y tak e t o reac h a populatio n or receptor

. Eac h pathway i s categorize d a s one o f the following :
• Inhalatio n • Dermal contac t wit h solid s • Dermal contac t wit h wate r • Ingestio n o f solid s • Ingestio n o f wate r PATHWA Y SUMMAR Y 

### Thi s shee t als o provide s th e sam e basi c informatio n as th e Recepto r Detail Repor t 

### describe d above

. Th e differenc e betwee n th e tw o i s tha t th e Recepto r Detail Repor t include s al l receptor s whil e th e Pathwa y Summar y Repor t i s receptor-specific , providin g informatio n o n onl y on e recepto r pe r page

. Pathwa y Detail Repor t 

### Thes e sheet s compris e th e majorit y o f th e ASSES S report

. Fo r bot h average an d RM E exposur e scenarios , carcinogenic ris k ari d noncarcinogenic

hazard s ar e liste d fo r eac h 

### recepto r exposur e rout e an d chemical

. Tota l carcinogenic risk s an d noncarcinogenic hazard s ar e also provided

. Thi s repor t i s especiall y helpfu l in determinin g whic h 

### chemical(s ) i s (are ) drivin g th e overal l risk s o r hazard s fo r a particula r exposur e route

. Othe r values provide d i n thi s repor t includ e th e concentratio n o f eac h chemica l i n th e medium , th e intak e facto r fo r that exposur e route , an d th e dail y intak e o f th e chemica l bein g evaluated

. Thi s dail y intak e o f a n individua l chemica l i s eithe r multiplie d b y it s slop e facto r o r divide d b y it s Rf D fo r a give n exposur e rout e (ora l o r inhalation)

. Unti l 

### othe r informatio n i s availabl e fro m EPA
, ora l RfDs an d SF s ar e used fo r assessin g th e 

### potentia l healt h impact s o f derma l exposure

.

22909C-22327/R22. F

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F-4 1

### INTAK

E FACTOR S 

### Thes e sheet s represent , in equatio n format , th e metho d o f calculatin g th e intak e factor s 

### tha t appea r i n th e pathway detai l repor t explaine d above

. Eac h o f th e parameter s tha t goes int o a n intak e facto r equatio n i s define d fo r bot h th e average an d RM E scenarios

. Thes e parameter s ar e mor e full y describe d i n th e Exposur e Assessmen t sectio n o f thi s report

. MEDI A CONCENTRATION

S 

### Thes e sheet s describ e th e chemical concentration s fo r th e average an d RM E scenarios 

### for a give n medium

. I n som e cases , a highe r concentratio n ma y b e use d t o evaluat e short-ter m risks

. Fo r example , paniculat e concentration s i n ai r ma y b e highe r durin g a - short constructio n projec t tha n the long-ter m (2 5 year ) average migh t be

. I n most 

### cases , th e sam e concentration s wil l b e use d fo r subchroni c an d chroni c exposures

. Thes e figure s ar e describe d i n th e Dat a Summar y an d Selectio n o f Chemical s o f Concer n sectio n o f thi s report

.

22909C-22327/R22. F

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F-4 2

### ASSES S REPORT S

22909r-22327/R22..S;6f-28-93<4:26pm>/RPT7l6 

### F-43 :Chemica l

List : Impounde d Tailin g January 28 , 199 3 =====^=========^==^^=^= = 16:5 7 Inhalatio n ——————————————

— ———— — Non-Inhalatio n Slop e Subchroni c

Chroni c Slop e Subchroni c

Chroni c Facto r RF D RF D Facto r

RF D RF D Chemica l (mg/kg/day)- 1

mg/kg/da y mg/kg/da y (mg/kg/day)- 1

mg/kg/da y mg/kg/da y Antimon y 1.HE-0 4 1.14E-0 4

4.00E-0 4

4.00E-0 4 Arseni c 1.50E+0 1 1.75E+0 0 3.00E-0 4

3.00E-0 4 Berylliu m 8.40E+0 0 4.30E+0 0 5.00E-0 3

5.00E-0 3 Cadmiu m (food ) 6.30E+0 0 1.00E-0 3 Chromiu m V I 4.10E+0 1 5.70E-0 6 5.70E-0 6 2.00E-0 2

5.00E-0 3 Coppe r 3.70E-0 2 3.70E-0 2 Manganes e 1.14E-0 4 1.14E-0 4 Zin c 2.00E-0 1 3.00E-0 1Receptor/Pathwa y

Summary : Impounde d Tailin g Januar y 28 , 199 3 16:5 8
Recepto r / Pathwa y Averag e Exposur e Cance r Subchroni c Chroni c Ris k H.I

.

H.I

. Adul t Visito r

- - Ingestio n o f Tailing

- - Inhalatio n o f Particulate s Chil d Visito r

- - Ingestio n o f Tailin g Reasonabl e Maximu m Exposur e Cance r Subchroni c Chroni c Ris k H.I

.

H.I

. 5.05E-0 7 2.35E-0 2 2.38E-0 2 2.86E-0 5 1.66E-0 1 1.68E-0 1 9.98E-1 1 1.29E-0 6 1.29E-0 6 3.95E-0 9 1.85E-0 5 1.85E-0 5 5.05E-0 7 2.35E-0 2 2.38E-02 2.86E-0 5 1.66E-0 1 1.68E-0 1 5.68E-0 6 1.32E-0 1 1.34E-0 1 3.89E-0 5 9.01E-0 1 9.15E-0 1 5.68E-0 6 1.32E-0 1 1.34E-0 1 3.89E-0 5 9.01E-0 1 9.15E-0 1 Dir t Bike r

- - Ingestio n o f Tailin g

- - Inhalatio n o f Particulate s 1.89E-0 6

2.94E-0 2 2.98E-0 2 1.70E-0 5 2.62E-0 1 2.66E-0 1 2.66E-1 0 3.45E-0 6 3.45E-0 6 4.19E-0 9 6.57E-0 5 6.57E-0 5 1.89E-0 6 2.94E-0 2 2.98E-0 2 1.70E-0 5 2.62E-0 1 2.66E-0 1Adul t Visito r Ingestio n o f Tailin g Averag e Exposur e

1 | Carcinogeni c

Ris k i Chemica l Ingestio n Concentratio n Intak e Facto r Chemica l Arseni c Berylliu m

t | Hazar d Inde x - - Subchroni c i (mg/kg ) (kg/kg/day ) 4.17E+02 6.81E-1 0 2.96E+0 0 6.81E-1 0

Chemica l Ingestio n Concentratio n Intak e Facto r Chemica l Antimon y Arsenic " Bery l liu m Chromiu m V I Coppe r Zin c

1 ————————————————————— — | Hazar d Inde x - - Chroni c <mg/kg )

(kg/kg/day ) 2.39E+ U 1.59E-0 8 4.17E+0 2 1.59E-0 8 2.96E+0 0 1.59E-0 8 6.41E+0 0 1.59E-0 8 4.94E+0 2 1.59E-0 8 3.50E+0 3 1.59E-P

8

. • •• 1 " ; i

' . : . Chemica l Ingestio n Concentratio n Intak e Facto r Chemica l Antimon y Arseni c ; Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Zin c (mg/kg ) Ckg/kg/day ) 2.39E+0 1 1.59E-0 8 4.17E+02 1.59E-0 8 2.96E+U O 1.59E-0 8 2.51E+0 1 1.59E-0 8 6.41E+0 0 1.59E-0 8 4.94E+0 2 1.59E-0 8 3.50E+0 3 1.59E-0 8 Daily

Intak e (mg / kg/day ) 2.84E-0 7 2.02E-09

D a i l y Intak e (nig/kg/day ) 3.80E-0 7 6.62E-0 6 4.70E-0 8 1.02E-0 7 7.84E-0 6 5.57E-0 5

D a i l y Intak e (mg/kg/day ) 3.80E-0 7 6.62E-0 6 4.70E-0 8 3.99E-0 7 1.02E-0 7 7.84E-0 6 5.57E-0 5 Slop e

Facto r (mg/kg/day ) - 1 1.75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-0 2 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-02 3.00E-0 1 Carcinogeni c

Ris k 4.96E-0 7 8.67E-0 9

Hazar d Quot i en t 9.49E-0 4 2.21E-0 2 9.41E-0 6 5.09E-0 6 2.12E-0 4 2.78E-0 4

Hazar d Quotien t 9.49E-0 4 2.21E-0 2 9.41E-0 6 3.99E-0 4 2.04E-0 5 2.12E-0 4 1.86E-0 4 Tota l

Ris k
5.05E-0 7

Hazar d Inde x

2.35E-0 2

Hazar d Inde x

2.38E-0 2Adul t Visito r Ingestio n o f Tailin g Reasonabl e Maximu m Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Arsenic

- Berylliu m Chromiu m V I Coppe r Zin c

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Zin c 1

1 1 Chemica l Concentratio n (mg/kg ) 6.21E+0 2 4.69E+0 0 I I I Chemica l Concentratio n (mg/kg ) 3.03E+0 1 6.21E+0 2 4.69E+0 0 1.09E+0 1 7.83E+0 2 6.28E+0 3

I I .•••'"

- : I Chemica l Concentratio n (mg/kg ) 3.03E+0 1 6.21E+0 2 4.69E+0 0 4.21E+0 1 1.09E+0 1 7.83E+0 2 6.28E+0 3 Ingestio n Intak e Facto r (kg/kg/day ) 2.58E-0 8 2.58E-0 8

I nges t i o n Intak e Facto r (kg/kg/day ) 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8
Ingestio n Intak e Facto r (kg/kg/day ) 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 Dail y

Intak e (ing/kg/day ) 1.60E-0 5 1.21E-0 7

Dail y Intak e (mg/kg/day ) 2.28E-0 6 4.67E-0 5 3.53E-0 7 8.20E-0 7 5.89E-0 5 4^72E-0 4

D a i l y Intak e (mg/kg/day ) 2.28E-0 6 4.67E-0 5 3.53E-0 7 3.17E-0 6 8.20E-0 7 5.89E-0 5 4.72E-0 4 Slop e

Facto r (mg/kg/day ) - 1 1 .75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-0 2 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 1 Carcinogeni c

Ris k 2.80E-0 5 5.20E-0 7

Hazar d Quotien t 5.70E-0 3 1.56E-0 1 7.06E-0 5 4.10E-0 5 1.59E-0 3 2.36E-0 3

Hazar d Quot i en t 5.70E-0 3 1.56E-0 1 7.06E-0 5 3.17E-0 3 1.64E-0 4 1.59E-0 3 1.57E-0 3 Tota l Ris k
2.86E-0 5

Hazar d Inde x

1.66E-0 1

Hazar d Inde x

1.68E-0 1Adul t Visito r Inhalatio n o f Particulate s Averag e Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Chromiu m V I Manganes e

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Chromiu m V I Manganes e 1

1 1 Chemica l Concentratio n (mg/m3) 9.01E-0 8 6.39E-1 0 5.42E-0 9 1.38E-0 9

I I I Chemica l Concentratio n (mg/m3) 5.16E-0 9 1.38E-0 9 2.42E-0 7 I I I

.. . •,.

. Chemica l Concentratio n (mg/m3) 5,16Er0 9 1.38E-0 9 2.42E-0 7 Inhalatio n Intak e Facto r (m3/kg/day ) 6.90E-0 5 6.90E-0 5 6.90E-0 5 6.90E-0 5

Inhalatio n Intak e Facto r (m3/kg/day ) 5.36E-0 4 5.36E-0 4 5.36E-0 4

Inhalatio n

: Intak e Facto r <m3/kg/day) 5.36E-0 4 5.36E-0 4 5.36E-0 4 D a i

l y Intak e (nig/kg/day ) 6.21E-1 2 4.41E-1 4 3.74E-1 3 9.52E-1 4

Dail y Intak e Cmg / kg/day)

•:. 2.77E-1 2 7.40E-1 3 1.30E-1 0

;"" •--::.

. Daily Intak e (mg/kg/day ) 2.77E-1 2 7.40E-1 3 1.30E-1 0 Slop e

Facto r (mg/ kg/day)

- 1 1.50E+0 1 8.40E+0 0 6.30E+0 0 :4.10E+0 1

Subchroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6

. 1.14E-0 4

Chroni c R F D (mg/kg/day )
1

. HE-0 4 5.70E-0 6 1

. HE-0 4 Carcinogeni c

Ris k 9.32E-1 1 3.70E-1 3 2.35E-1 2 3.90E-1 2

Hazar d Quot i en t 2.43E-0 8 1.30E-0 7 1

. HE-0 6

Hazar d Quot i en t 2.43E-0 8 1.30E-0 7 1

. HE-0 6 Tota l

Ris k

9.98E-1 1

Hazar d Inde x
1.29E-0 6

Hazar d Inde x
1.29E-0 6Adul t Visito r Inhalatio n o f Particulate s Reasonabl e Maximu m Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Bery l liu n Cadmiu m (food) Chromiu m V I

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Chromiu m V I Manganes e I | Hazar d Inde x - - Chroni c i Chemica l Antimon y Chromiu m V I Manganes e 1

1 1 Chemica l Concentratio n (mg/m3) 1.34E-0 7 1.01E-0 9 9.09E-0 9 2.35E-0 9

I I I Chemica l Concentratio n (mg/m3) 6.54E-0 9 2.35E-0 9 4.45E-0 7

" I I I Chemrc a I Concentratio n (mg/m3 ) 6;54E-0 9 2.35E-0 9 4.45E-0 7 Inhalatio n Intak e Facto r (m3/kg/day ) 1.82E-0 3 1.82E-0 3 1.82E-0 3 1.82E-0 3

Inhalatio n Intak e Facto r (m3/kg/day ) 4.24E-0 3 4.24E-0 3 4.24E-03:,

.

Inhalatio n Intak e Facto r (m3/kg/day ) 4.24E-0 3 4.24E-0 3 4.24E-0 3 D a i

l y Intak e (mg/kg/day ) 2.43E-1 0 1.84E-1 2 1.65E-1. 1 4.27E-1 2

D a i l y intak e (mg/kg/day ) 2.77E-1 1 9.96E-1 2 1.89E-0 9

D a i l y Intak e (mg/kg/day ) 2.77E-1 1 9.96E-1 2 1.89E-09 Slop e

Facto r (mg/kg/day ) - 1 1.50E+0 1 8.40E+0 0 6.30E+0 0 4.10E+0 1

Subchroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6

. 1.14E-0 4

Chroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6 1.14E-0 4 Carcinogeni c

Ris k 3.65E-0 9 1.54E-1 1 1.04E-1 0 1.75E-1 0

Hazar d Quotien t 2.43E-0 7 1.75E-0 6 1.65E-0 5

Hazar d Quotien t 2.43E-0 7 1.75E-0 6 1.65E-0 5 Tota l

Ris k

3.95E-0 9

Hazar d Inde x
1.85E-0 5

Hazar d Inde x
1.85E-0 5Chil d Visito r Ingestio n o f Tailin g Averag e Exposur e Carcinogeni c Ris k Chemica l \rseni c 3er y Iliu m
Hazar d Inde x - - Subchroni c Chemica l Antimon y Arsenic " Jerylliu m Chromiu m V I Coppe r line
Hazar d Inde x - - Chroni c Chemica l Vntimon y Arseni c .:• Jerylliu m :admiu m (food ) :hromiu m V I Coppe r Jin c 1

1 i Chemica l Concentratio n (mg/kg ) 4.17E+0 2 2.96E+0 0 I I I Chemica l Concentratio n < mg/kg ) 2.39E+0 1 4.17E+02 2.96E+0 0 6.41E+0 0 4.94E+0 2 3.50E+0 3

I | •"•'•'"• • , I Chemica l Concentratio n (mg/kg ) 2.39E+0 1 4.17E+02 2.96E+0 0 2.51E+0 1 6.41E+0 0 4.94E+0 2 3.50E+0 3 Inges t io n Intak e Facto r (kg/kg/day ) 7.66E-09 7.66E-0 9

I nges t i o n Intak e Facto r (kg/kg/day ) 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94ET0 8

I nges t i o n Intak e Facto r (kg/kg/day ) 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 Daily

Intak e (mg/kg/day ) 3.19E-0 6 2.27E-0 8

Dail y Intak e (mg/kg/day ) 2.14E-0 6 3.72E-0 5 2.65E-0 7 5.73E-0 7 4.41E-0 5 3.13E-0 4' ' " "•••- •

.

Dail y Intak e (mg/kg/day ) 2.14E-0 6 3.72E-0 5 2.65E-0 7 2.25E-0 6 5.73E-0 7 4.41E-0 5 3.13E-0 4 Slop e

Facto r (mg/kg/day ) - 1 1.75E+0 0 4.30E+0 0

: l :

: : Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-0 2 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 1 Carcinogeni c

Tota l Ris k Ris k 5.59E-0 6 9.75E-0 8 5.68E-0 6

Hazar d Hazar d Quotien t Inde x 5.34E-0 3 1.24E-0 1 5.29E-0 5 2.86E-0 5 1.19E-0 3 1.57E-0 3 1.32E-0 1

Hazar d Hazar d Quotien t Inde x 5.34E-0 3 1.24E-0 1 5.29E-0 5 2.25E-0 3 1.15E-0 4 1.19E-0 3 1.04E-0 3 1.34E-0 1Chil d Visito r Ingestio n o f Tailin g Reasonabl e Maximu m Exposur e Carcinogeni c Ris k Chemica l Vrseni c Jerylliu m
Hazar d Inde x - - Subchroni c Chemica l Vntimon y \rsenic~ Serylliu m ;hromiu m V I :oppe r Sin e
Hazar d Inde x - - Chroni c Chemica l \ntimon y \rseni c Jerylliu m :admiu m (food ) Chromiu m V I :oppe r :. ; Jin c 1

1 1 Chem i c a I Concentratio n (mg/kg ) 6.21E+0 2 4.69E+CO

1 1 I Chemica l Concentratio n (mg/kg ) 3.03E+0 1 6.21E+0 2 4.69E+0 0 1.09E+0 1 7.83E+0 2 6.28E+0 3 I Chemica l Concentratio n (mg/kg ) 3.03E+0 1 6.21E+02 4.69E+0 0 4.21E+0 1 1.09E+0 1 7.83E+0 2 6.28E+0 3 Inges t

io n Intak e Facto r (kg/kg/day ) 3.51E-0 8 3.51E-0 8
Inges t io n Intak e Facto r (kg/kg/day ) 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7
Inges t io n Intak e Facto r (kg/kg/day ) 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 D a i

l y Intak e (mg/kg/day ) 2.18E-0 5 1.65E-0 7

Daily Intak e (mg/kg/day ) 1.24E-0 5 2.54E-0 4 •K92E-0 6 4.47E-0 6 3.21E-0 4 2.57E-0 3

Daily Intak e (mg/kg/day ) 1.24E-0 5 2.54E-0 4 1.92E-0 6 1.72E-0 5 4.47E-0 6 3.21E-0 4 2.57E-0 3 Slop e

Facto r (mg/kg/day)- 1 1 .75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-0 2 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 1 Carcinogeni c

Ris k 3.82E-0 5 7.08E-0 7

Hazar d Quot i en t 3.10E-0 2 8.48E-0 1 3.84E-0 4 2.23E-0 4 8.67E-0 3 1.29E-0 2

Hazar d Quotien t 3.10E-0 2 8.48E-0 1 3.84E-0 4 1.72E-0 2 8.93E-0 4 8.67E-0 3 8.57E-0 3 Tota l

Ris k
3.89E-0 5

Hazar d Inde x

9.01E-0 1

Hazar d Inde x

9.15E-0 1Dir t Biker Ingestio n o f Tailin g Averag e Exposur e
1 | Carcinogeni c

Ris k i Chemica l Arseni c Bery l L i ur n

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Arsenic r Berylliu m Chromiu m V I Coppe r Zin c I ] Hazar d Inde x - - Chroni c i Chemica l Antimon y Arseni c Berylliu m

: Cadmiu m (food ) Chromiu m V I Coppe r Zin c 1

1 I Chemica l Concentratio n (mg/kg ) 4.17E+02 2.96E+0 0

I i 1 Chemica l Concentratio n (mg/kg ) 2.39E+0 1 4.17E+0 2 2.96E+0 0 6.41E+0 0 4.94E+0 2 3.50E+0 3 I I - "•'• • , I Chemica l Concentratio n (mg/kg ) 2.39E+0 1 4.17E+0 2 2.96E+0 0 2.51E+0 1 6.41E+0 0 4.94E+0 2 3.50E+0 3 I nges t i o n Intak e Facto r (kg/kg/day ) 2.55E-0 9 2.55E-0 9
Ingestio n Intak e Facto r (kg/kg/day ) 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8
Ingestio n Intak e Facto r Ckg/kg/day ) 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 Daily

Intak e (mg/kg/day ) 1.06E-0 6 7.56E-0 9

Daily Intak e (mg/kg/day ) 4.75E-0 7 8.27E-0 6 5.88E-0 8 1.27Er0 7 9.80E-0 6 6.96E-0 5 " : : " "

Dail y Intak e . (mg/kg/day ) 4.75E-0 7 8.27E-0 6 5.88E-0 8 4.99E-0 7 1.27E-0 7 9.80E-0 6 6.96E-0 5 Slop e

Facto r (mg/ kg/day)- ! 1.75E+0 0 4.30E+0 0

: : . . Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-02 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 1 Carcinogeni c

Ris k 1.86E-0 6 3.25E-0 8

Hazar d Quotien t 1.19E-0 3 2.76E-0 2 1.18E-0 5 6.37E-0 6 2.65E-0 4 3.48E-0 4

Hazar d Quotien t 1.19E-0 3 2.76E-0 2 1.18E-0 5 4.99E-0 4 2.55E-0 5 2.65E-0 4 2.32E-0 4 Tota l

Ris k
1.89E-0 6

Hazar d Inde x

2.94E-0 2

Hazar d Inde x

2.98E-0 2Dir t Bike r Ingestio n o f Tailin g Reasonabl e Maximu m Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Arsenic " Berylliu m Chromiu m V I Coppe r Zin c

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Z i n c 1 Chemica l

Concentratio n (mg/kg ) 6.21E+0 2 4.69E+0 0 I I I Chemica l Concentratio n (mg/kg ) 3.03E+0 1 6.21E+0 2 4.69E+O D 1.09E+0 1 7.83E+0 2 6.28E+0 3 I I Chemica l Concentratio n (mg/kg ) 3.03E+0 1 6.21E+02 4.69E+0 0 4.21E+0 1 1.09E+0 1 7.83E+0 2 6.28E+0 3 Ingestio n Intak e Facto r (kg/kg/day ) 1.53E-0 8 1.53E-0 8
Ingestio n Intak e Facto r (kg/kg/day ) 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7
Ingestio n Intak e Facto r (kg/kg/day) 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 Daily

Intak e (mg/kg/day ) 9.52E-0 6 7.19E-0 8

Dail y Intak e (rag / kg/day ) 3.61E-0 6 7.40E-0 5 5.59E-0 7 1.30E-0 6 9.33E-0 5 7.48E-0 4

D a i l y Intak e (mg/kg/day ) 3.61E-0 6 7.40E-0 5 5.59E-0 7 5.02E-0 6 1.30E-0 6 9.33E-0 5 7.48E-0 4 Slop e

Facto r (mg/kg/day ) - 1 1.75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-0 2 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 1 Carcinogeni c

Ris k 1.67E-0 5 3.09E-0 7

Hazar d Quotien t 9.03E-0 3 2.47E-0 1 1.12E-0 4 6.50E-0 5 2.52E-0 3 3.74E-0 3

Hazar d Quotien t 9.03E-0 3 2.47E-0 1 1.12E-0 4 5.02E-0 3 2.60E-0 4 2.52E-0 3 2.49E-0 3 Tota l

Ris k
1.70E-0 5

Hazar d Inde x

2.62E-0 1

Hazar d Inde x

2.66E-0 1Dir t Bike r Inhalatio n o f Particulate s Averag e Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Chromiu m V I Manganes e

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Chromiu m V I Manganes e 1

1 I Chemica l Concentratio n Cmg/m3) 9.01E-0 8 6.39E-1 0 5.42E-0 9 1.38E-0 9 I I I Chemica l Concentratio n (mg/m3 ) 5.16E-0 9 1.38E-0 9 2.42E-0 7

I I I Chemica l Concentratio n (mg/m3 ) 5.16E-0 9 1.38E-09 2.42E-0 7 Inhalatio n Intak e Facto r (m3/kg/day ) 1.84E-0 4 1.84E-0 4 1.84E-0 4 1.84E-0 4

Inhalatio n Intak e Facto r (m3/kg/day ) 1.43E-0 3 1.43E-0 3 1.43E-03
,

Inhalatio n

: : Intak e Facto r (m3/kg/day ) 1.43E-0 3 1.43E-0 3 1.43E-0 3 Dail y

Intak e (mg/kg/day ) 1.66E-1 1 1.17E-1 3 9.97E-1 3 2.54E-1 3

D a i l y Intak e (rng/kg/day ) 7.38E-1 2 1.97E-1 2 3.46E-1 0 ••...

.

D a i l y Intak e (mg/kg/day ) 7.38E-1 2 1.97E-1 2 3.46E-1 0 Slop e

Facto r (mg/kg/day ) - 1 V.50E+0 1 8.40E+0 0 6.30E+0 0 4.10E+0 1

Subchroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-06

. 1.14E-0 4

Chroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6 1.14E-0 4 Carcinogeni c

Ris k 2.49E-1 0 9.87E-1 3 6.28E-1 2 1.04E-1 1

Hazar d Quot i en t 6.47E-0 8 3.46E-0 7 3.04E-0 6

Hazar d Quotien t 6.47E-0 8 3.46E-0 7 3.04E-0 6 Tota l

Ris k

2.66E-1 0

Hazar d Inde x
3.45E-0 6

Hazar d Inde x
3.45E-0 6Dir t Bike r Inhalatio n o f Particulate s Reasonabl e Maximum Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I I | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Chromiu m V I Manganes e

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Chromiu m V I Manganes e 1

1 1 Chemica l Concentratio n (mg/m3) 1.34E-0 7 1.01E-0 9 9.09E-0 9 2.35E-0 9 I I I Chemica l Concentratio n (mg/m3) 6.54E-0 9 2.35E-0 9 4.45E-0 7 I I
| •••••••:.:

. Chemica l Concentratio n (mg/m3) 6.54E-0 9 2.35E-0 9 4.45E-0 7 Inhalatio n Intak e Facto r <m3/kg/day ) 1.93E-0 3 1.93E-0 3 1.93E-0 3 1.93E-0 3

Inhalatio n Intak e Facto r (m3/kg/day ) 1.50E-0 2 1.50E-0 2 i.50E-02

Inhalatio n Intak e Facto r (m3/kg/day ) 1.50E-0 2 1.50E-0 2 1.50E-0 2 D a i

l y Intak e (mg/kg/day ) 2.59E-1 0 1.95E-1 2 1.75E-1 1 4.54E-1 2

Dail y Intak e (mg/kg/day ) 9..82E-1 1 3.53E-1 1 6.68E-0 9

D a i l y Intak e (mg/kg/day ) 9.82E-1 1 3.53E-1 1 6.68E-0 9 Slop e

Facto r (mg/kg/day ) - 1 1.50E+0 1 8.40E+0 0 6.30E+0 0 4.10E+0 1

Subchroni c R F D <mg/kg/day ) 1.14E-0 4 5.70E-0 6

. 1.14E-0 4

Chroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6 1.14E-0 4 Carcinogeni c

Ris k 3.88E-0 9 1.64E-1 1 1.11E-1 0 1.86E-1 0

Hazar d Quotien t 8.61E-0 7 6.19E-0 6 5.86E-0 5

Hazar d Quotien t 8.61E-0 7 6.19E-0 6 5.86E-0 5 Tota l

Ris k

4.19E-09

Hazar d Inde x
6.57E-0 5

Hazar d Inde x
6.57E-0 5Intak e

Factor : Impounde d Tailin g January 28 , 199 3 16:5 8 Description : Adul t Visitor-Tailin g

Ingestio n Abbreviation : ART G Pathwa y Type : Ingestio n of Soi l
Intak e Facto r = ( I R x E F x E D x M E x F I x C F x S S ) ( B W x A T ) Parameters : Carcinogeni c Abbreviatio n I R EF E D M E F I C F



### - s s B W A T Descriptio n Ingestio n Rate(mg/day) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Fractio n Contaminate d Conversio n Facto r (kg/mg ) Site-specifi c Facto r Bod y Weigh t (kg ) Averagin g Tim e (dys ) A v e

1 0 2 9 3

. 5 1 .00000 1 

### 1 2 5 2555 0 R M E
3 6 8 7 2 4

. 5 1 .00000 1 

### 1 5 7 2555 0 Non

- Carcinogeni c A v e 1 0 2 9 3

. 5 r .00000 1 

### 1 2 5 1095 R M E
3 6 8 7 2 4

. 5 1 .00000 1 

### 1 5 7 876 0 Intak e Facto r Calculations : Carcinogenic : Averag e Exposur e

< 1.00E+0 1 x 2.90E+0 1 x 3.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 6.81E-1 0 = <

2.50E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Maximu m Exposur e ( 3.60E+0 1 x 8.70E+0 1 X 2.40E+0 1 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 2.58E-0 8 = <

5.70E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e ( 1.00E+0 1 x 2.90E+0 1 x 3.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 1.59E-0 8 = (

2.50E+0 1 x 1.10E+0 3 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 3.60E+0 1 x 8.70E+0 1 x 2.40E+0 1 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 7.53E-0 8 = (

5.70E+0 1 x 8.76E+03 )Intak e

Factor : Impounde d Tailin g January 28 , 199 3 16:5 8 Description : ChiI d Visitor-Tailin g Ingestio n Abbreviation : CRT G Pathwa y Type : Ingestio n o f Soi l
Intak e Facto r = ( I R x E F x E D x M E x F I x C F x S S ) ( B W x A T ) Parameters : Abbreviatio n I R EF E D M E F I C F



### - s s B W A T Descriptio n Carcinogeni c A v e RM E Ingestio n Rate(mg/day ) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Fractio n Contaminate d 3

6 2 9 6

. 5 1 5 5 8 7 6

. 5 1 Non-Carcinogeni c A v e RM E
3 6 2 9 6 • 5 1 : 5 5 8 7 6

. 5 1 Conversio n Facto r (kg/mg ) .00000 1 .00000 1 .00000 1 .00000 1 Site-specifi c Facto r 1 1 1 1 Bod y Weigh t (kg ) 1 6 1 6 1 6 1 6 Averagin g Tim e (dys) 2555 0 2555 0 219 0 219 0 Intak e Facto r Calculations : Carcinogenic : Averag e Exposur e

< 3.60E+0 1 x 2.90E+0 1 x 6.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 7.66E-0 9 = (

1.60E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Maximu m Exposur e ( 5.50E+0 1 x .8.70E+0 1 x 6.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 3.51E-0 8 = (

1.60E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e ( 3.60E+0 1 x 2.90E+0 1 x 6.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 8.94E-0 8 = (

1.60E+0 1 x 2.19E+0 3 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 5.50E+0 1 x 8.70E+0 1 x 6.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 4.10E-0 7 = (

1.60E+0 1 x 2.19E+0 3 )Intak e

Factor : Impounde d Tailin g Januar y 28 , 199 3 16:5 8 Description : Dir t Biker-Tailin g Ingestio n Abbreviation : TUT G Pathwa y Type : Ingestio n of Soi l
Intak e Facto r = I R x E F x E D x M E x F I x C F x S S ) ( BU x A T ) Parameters : Abbreviatio n I R E F E D H E F I CF

- S S B U A T Descriptio n Carcinogeni c A v e RM E Ingestio n Rate(mg/day ) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Fractio n Contaminate d 2

5 2 9 9

. 5 1 5 0 8 7 9

. 5 1. , Non-Carcinogeni c A v e RM E
2 5 2 9 9

. 5 

## r 5 0 8 7 9

. 5 1 Conversio n Facto r (kg/mg > .00000 1 .00000 1 .00000 1 .00000 1 Site-specifi c Facto r 1 1

;' \ 1 Bod y Weigh t (kg ) 5 0 5 0 5 0 5 0 Averagin g Tim e (dys ) 2555 0 2555 0 3285 3285 Intak e Facto r Calculations : Carcinogenic : Averag e Exposur e ( 2.50E+0 1 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 2.55E-0 9 = (

5.00E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Maximu m Exposur e ( 5.00E+O T x 8.70E*0 1 x 9.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 } 1.53E-0 8 = (

5.00E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e ( 2.50E+0 1 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 1.99E-0 8 = (

5.00E+0 1 x 3.29E+0 3 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 5.00E+0 1 x 8.70E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 1.19E-0 7 = (

5.00E+0 1 x 3.29E+0 3 )Intak e

Factor : Impounde d Tailin g Januar y 28 , 199 3 16:5 8 Description : Dir t Biker-Tailin g Inhalatio n Abbreviation : TUT ! Pathwa y Type : Inhalatio n ( I R x E T x E F x E D x H E x DF x C C x F I x S S )

Parameters : ( B W x A T > Carcinogeni c Abbreviatio n I R E T EF E D H E DF

- c c F I S S B W A T Descriptio n Inhalatio n Rate(m3/hr ) Exposur e Time(hrs/dy ) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Depositio n Facto r C i liar y Clearanc e Fractio n Contaminate d Site-Specifi c Facto r Bod y Weigh t (kg) Averagin g Time(dys ) A v e

1. 2 2 2 9 9

. 5 .7 5 1 1 ...1

. 5 0 2555 0 R M E
2. 1 2 8 7

: 9' 

### r;
: .75 

### 1 1 1 5 0 2555 0 Non-Carcinogeni c Ave RM E
1. 2 2 2 9 9

. 5 .7 5

. 1 

### r 1

. 5 0 3285 2. 1 2 8 7 9 1 .7 5 1 1 1 5 0 3285 Intak e Facto r Calculations : Carcinogenic : Averag e Exposur e ( 1.20E+0 0 x 2.00E+0 0 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 7.50E-0 1 x 1 x 1 x 1 ) 1.84E-0 4 = (

5.00E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Haximu m Exposur e ( 2.10E+0 0 x 2.00E+0 0 x 8.70E+0 1 x 9.00E+0 0 x 1 x 7.50E-0 1 x 1 x 1 x 1 ) 1.93E-0 3 = (

5.00E+0 1 x 2.56E+0 4 > Non-Carcinogenic :

Averag e Exposur e ( 1.20E+0 0 x 2.00E+0 0 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 7.50E-0 1 x 1 x 1 x 1 ) 1.43E-0 3 = (

5.00E+0 1 x 3.29E+0 3 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 2.10E+0 0 x 2.00E+0 0 x 8.70E+0 1 x 9.00E+0 0 x 1 x 7.50E-0 1 x 1 x 1 x 1 ) 1.50E-0 2 = (

5.00E+0 1 x 3.29E+0 3 )Intak e

Factor : Impounde d Tailin g January 28 , 199 3 16:5 8 Description : Adul t Visitor-Tailin g

Inhalatio n Abbreviation : ARU I Pathwa y Type : Inhalatio n C I R x E T x E F x E D x H E x O F x C C x F I x S S )

< B W x A T )

imeters : Carcinogeni. c Non-Carcinogeni c Abbreviatio n I R E T EF E D M E D F

- c c F I S S BW A T Descriptio n Inhalatio n Rate(m3/hr > Exposur e Time(hrs/dy > Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Depositio n Facto r C i liar y Clearanc e Fractio n Contaminate d Site-Specifi c Facto r Bod y Weight(kg ) Averagin g Time(dys ) A v e

RM E Av e .6 3 .8 3 .6 3 2 2 2 2 9 8 7 2 9 9 3 0 9

. 5 : 1 / :

. 5 .7 5 .7 5 .7 5 1 1 , : 1 1 1 1 1 1 1 7 0 70

. 7 0 2555 0 2555 0 328 5

: " : R M

E
.8 3 2 8 7 3 0 1 .7 5 1 1 1 7 0 1095 0 i k e Facto r Calculations : Carcinogenic : Averag e

Exposur e ( 6.30E-0 1 x 2.00E+0 0 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 7.50E-0 1 x 1 x 1 x 1 ) ( 7.00E+0 1 x 2.56E+0 4 ) Careinogenic : Reasonabl e Maximu m Exposur e ( 8.30E-0 1 x 2.00E+0 0 x 8.70E+0 1 x 3.00E+0 1 x 1 x 7.50E-0 1 x 1 x 1 x 1 1.82E-0 3 = (

7.00E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e ( 6.30E-0 1 x 2.00E+0 0 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 7.50E-0 1 x 1 x 1 x 1 ) 5.36E-0 4 = <

7.00E+0 1 x 3.29E+0 3 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 8.30E-0 1 x 2.00E+0 0 x 8.70E+0 1 x 3.00E+0 1 x 1 x 7.50E-0 1 x 1 x 1 x 1 ) 4.24E-0 3 = (

7.00E+0 1 x 1.10E+0 4 )Medi a

Chemica l Concentrations :

Impounde d Tailin g January 28 , 199 3 16:5 8 Medium : Tailin g Abbreviation : Tailin g Mediu m Type : Soi l Subchroni c Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Manganes e Zin c Averag e (mg/kg ) 2.39E+0 1 4.17E+0 2 2.96E+0 0 2.51E+0 1 6.41E+0 0 4.94E+0 2 1.12E+0 3 3.50E+0 3 R.M.E

. (mg/kg ) 3.03E+0 1 6.21E+0 2 4.69E+0 0 4.21E+0 1 1.09E+0 1 7.83E+0 2 2.06E+0 3 6.28E+0 3 Chronic/Carcinogeni c

Averag e R.M.E

. (mg/kg ) (mg/kg ) 2.39E+0 1 4.17E+0 2 2.96E+Q O 2.51E+0 1 6;41E+0 0 4.94E+0 2 1.12E+0 3 3.50E+0 3 3.03E+0 1 6,21E+0 2 4.69E+0 0 4.21E+0 1 1.09E+0 1 7.83E+0 2 2.06E+03 6.28E+0 3Medi a

Chemica l Concentrations :

Impounde d Tailing Januar y 28 , 199 3 16:5 8 Medium : Particulate s Abbreviation : Dust Mediu m Type : Particulat e / VOC s Subchroni c Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Manganes e Zin c Averag e Cmg/m3 ) 5.16E-0 9 9.01E-0 8 6.39E-1 0 5.42E-0 9 1.38E-0 9 1.07E-0 7 2.42E-0 7 7.56E-0 7 R.M.E

. (mg/m3) 6.54E-0 9 1.34E-0 7 1.01E-0 9 9.09E-09 2.35E-0 9 1.69E-0 7 4.45E-0 7 1.36E-0 6 Chronic/Carcinogeni c

Averag e R.M.E

. (mg/m3 ) (mg/m3 > 5.16E-0 9 9.01E-0 8 6.39E-1 0 5.42E-0 9 1.38E-09 1.07E-0 7 2.42E-0 7 7.56E-0 7 6.54E-0 9 1.34E-0 7 1.01E-0 9 9.09E-0 9 2.35E-0 9 1.69E-0 7 4.45E-0 7 1.36E-0 6Chemica l

List : Fluvia l Tailin g January 28 , 199 3 16:5 7

Chemica l Antimon y Arseni c Bery l liu m Cadmiu m (food ) Chromiu m V I Coppe r Manganes e Mercury Thalliu m (i n solubl e salts ) Zin c ————— — innate Slop e Facto r (mg/kg/day ) - 1 1.50E+0 1 8.40E+0 0 6.30E+0 0 4.10E+0 1 I

1 U l 1 ——————————— — Subchroni c R F D mg/kg/da y 1.14E-0 4 5.70E-0 6 1.14E-0 4 8.60E-0 5 Chroni c

R F D mg/kg/da y 1

. 14E-0 4 5.70E-0 6 1.14E-0 4 8.60E-0 5 Slop e

Subchroni c Facto r RF

D (mg/kg/day ) - 1 mg/kg/da y 4.00E-0 4 1.75E+0 0 3.00E-0 4 4.30E+0 0 5.00E-0 3 2.00E-02 3.70E-0 2 3.00E-0 4 7.00E-0 4 2.00E-0 1 Chroni c

R F D mg/kg/da y 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 4 7.00E-0 4 3.00E-0 1Receptor/Pathwa y

Summary : Fluvia l Tailin g January 28 , 199 3 16:5 7

Recepto r / Pathwa y Averag e Exposur e Cance r Subchroni c Chroni c Ris k H.I

. H.I

. Reasonabl

e Maximu m Exposur e Cance r Subchroni c Chroni c Ris k H.I

. H.I

. Adul t Visito r

- - Ingestio n o f Tailin g

- - Inhalatio n o f Particulate s 2.29E-0 7

1.18E-0 2 1.22E-0 2 1.07E-0 5 7.15E-0 2 7.39E-0 2 4.79E-1 1 2.10E-0 6 2.10E-0 6 1.58E-0 9 2.87E-0 5 2.87E-0 5 2.29E-0 7 1.18E-0 2 1.22E-0 2 1.07E-0 5

7.15E-0 2 7.40E-02 Chil d Visito r

- - Ingestio n o f Tailin g 2.58E-0 6

6.64E-0 2 6.85E-0 2 1.46E-0 5 3.89E-0 1 4.02E-0 1 2.58E-0 6 6.64E-0 2 6.85E-0 2 1.46E-0 5 3.89E-0 1 4.02E-0 1 Dir t Bike r

- - Ingestio n o f Tailin g

- - Inhalatio n o f Particulate s 8.59E-0 7

1.48E-0 2 1.52E-0 2 6.36E-0 6 1.13E-0 1 1.17E-0 1 1.28E-1 0 5.59E-0 6 5.59E-0 6 1.68E-0 9 1.02E-0 4 1.02E-0 4 8.59E-0 7 1.48E-0 2 1.52E-0 2 6.36E-0 6

1.13E-0 1 1.17E-0 1Adul t Visito r Ingestio n o f Tailin g Averag e Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Bery l 1 inn

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Arsenic " Berylliu m Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c 1

1 1 Chemica l Concentratio n (mg/kg )
1 .89E+0 2 1.28E+0 0

Chemica l Concentratio n (mg/kg ) 2.54E+0 1 1.89E+0 2 1.28E+0 0 3.80E+0 0 3.13E+0 2 1.52E+0 0 3.06E+0 0 6.16E+0 3 I I
, I Chemica l Concentratio n (mg/kg ) 2.54E+0 1 1.89E+02 1.28E+0 0 3.38E+0 1 3.80E+0 0 3.13E+0 2 1.52E+0 0 3.06E+0 0 6.16E+0 3 Ingestio n Intak e Facto r (kg/kg/day ) 6.81E-1 0 6.81E-1 0
Ingestio n Intak e Facto r (kg/kg/day ) 1.59E-0 8 1.59E-0 8 1.59E-0 8 1.59E-0 8 1 .59E-0 8 1.59E-0 8 1.59E-0 8 1.59E-0 8

""''•'•• • Ingestio n Intak e Facto r (kg/kg/day ) 1.59E-0 8 1.59E-0 8 1.59E-0 8 1.59E-0 8 1.59E-0 8 1.59E-0 8 1.59E-0 8 1.59E-0 8 1.59E-0 8 D a i

l y Intak e (mg/kg/day ) 1.29E-0 7 8.72E-1 0

: : . Dail y Intak e (mg/kg/day ) 4.04E-0 7 3.00E-0 6 2.03E-0 8 6.04E-0 8 4.97E-0 6 2.42E-0 8 4.86E-0 8 9.79E-0 5

Dail y Intak e (mg/kg/day ) 4.04E-0 7 3.00E-0 6 2.03E-0 8 5.37E-0 7 6.04E-0 8 4.97E-0 6 2.42E-0 8 4.86E-0 8 9.79E-0 5 Slop e

Facto r (mg/kg/day ) - 1 1

. 75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 ; • 2.00E-02

. 3.70E-0 2 3.00E-0 4 7.00E-0 4 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 4 7.00E-0 4 3.00E-0 1 Carcinogeni c

Ris k 2.25E-0 7 3.75E-0 9

Hazar d Quotien t 1.01E-0 3 1.00E-0 2 4.07E-0 6 3.02E-0 6 1.34E-0 4 8.05E-0 5 6.95E-0 5 4.89E-0 4

Hazar d Quotien t 1.01E-0 3 1.00E-0 2 4.07E-0 6 5.37E-0 4 1.21E-0 5 1.34E-0 4 8.06E-0 5 6.95E-0 5 3.26E-0 4 Tota l

Ris k
2.29E-0 7

Hazar d Inde x

1.18E-0 2

Hazar d Inde x

1.22E-0 2Adul t Visito r Ingestio n o f Tailin g Reasonabl e Maximu m Exposur e

1 | Carcinogeni c

Ris k i

_ Chemica l Arseni c Berylliu m

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Arsenic " Berylliu m Chromiu m V I Coppe r Mercury Thalliu m (i n solubl e salts ) Zin c

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts) Zin c \

\ 1 Chemica l Concentratio n (mg/kg ) 2.33E+02 1 .67E+0 0 I I I Chemica l Concentratio n (mg/kg ) 3.79E+0 1 2.33E+0 2 1.67E+0 0 5.54E+0 0 3.88E+0 2 3.65E+0 0 6.57E+0 0 9.20E+0 3 I : 

# i i Chemica l Concentratio n (mg/kg ) 3.79E+0 1 2.33E+0 2 1.67E+0 0 4.67E+0 1 5.54E+0 0 3.88E+0 2 3.65E+0 0

: 6.57E+0 0 9.20E+03 Ingestio n Intak e Facto r (kg/kg/day ) 2.58E-0 8 2.58E-0 8
Ingestio n Intak e Facto r (kg/kg/day ) 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-08 7.53E-0 8 7.53E-0 8

" • : ••:::

. Ingestio n Intak e Facto r (kg/kg/day ) 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 7.53E-0 8 D a i

l y Intak e (mg/kg/day ) 6.01E-0 6 4.31E-0 8

Dail y Intak e (mg/kg/day ) 2.85E-0 6 1.75E-0 5 1.26E-0 7 4.17E-0 7 2.92E-0 5 2.75E-0 7 4.95E-0 7 6.92E-0 4

Dail y Intak e (mg/kg/day ) 2.85E-0 6 1.75E-0 5 1.26E-0 7 3.52E-0 6 4.17E-0 7 2.92E-0 5 2.75E-0 7 4.95E-0 7 6.92E-0 4 Slop e

Facto r (mg/kg/day)

- 1 1.75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-0 2 3.00E-0 4 7.00E-0 4 2.00E-0 1

Chroni c R F D (mg/kg/day) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 4 7.00E-0 4 3.00E-0 1 Carcinogeni c

Ris k 1.05E-0 5 1.85E-0 7

Hazar d Quotien t 7.13E-0 3 5.85E-0 2 2.51E-0 5 2.08E-0 5 7.89E-0 4 9.16E-0 4 7.06E-0 4 3.46E-0 3

Hazar d Quotien t 7.13E-0 3 5.85E-0 2 2.51E-0 5 3.52E-0 3 8.34E-0 5 7.89E-0 4 9.16E-0 4 7.06E-0 4 2.31E-0 3 Tota l

Ris k
1.07E-0 5

Hazar d Inde x

7.15E-0 2

Hazar d Inde x

7.39E-02Adul t Visito r Inhalatio n o f Particulate s Averag e Exposur e Carcinogeni c Ris k Chemica l
^seni c Serylliu m :admiu m (food ) :hromiu m V I
Hazar d Inde x - - Subchroni c Chemica l \ntimon y :hromiu m V I Manganes e Mercur y
Hazar d Inde x - - Chroni c Chemica l Antimon y Chromiu m V I Manganes e Mercur y 1

1 1 Chemica l Concentratio n (mg/m3) 4.08E-0 8 2.76E-1 0 7.30E-09 8.21E-1 0

I I I Chemica l Concentratio n (mg/m3 ) 5.49E-0 9 8.21E-1 0 4.23E-0 7 3.28E-1 0 I I I Chem i c a I Concentratio n (mg/m3 ) 5.49E-0 9 8.21E-1 0 4.23E-0 7 3.28E-1 0 Inhalatio n Intak e Facto r (m3/kg/day ) 6.90E-0 5 6.90E-0 5 6.90E-0 5 6.90E-0 5

Inhalatio n Intak e Facto r (m3/kg/day ) 5.36E-0 4 5.36E-0 4 5.36E-0 4 5.36E-0 4

Inhalatio n Intak e Facto r (m3/kg/day ) 5.36E-0 4 5.36E-0 4 5.36E-0 4 5.36E-0 4 Dail

y Intak e (mg/kg/day ) 2.81E-1 2 1.90E-1 4 5.03E-1 3 5.66E-1 4

Daily Intak e tmg/kg/day ) 2.94E-1 2 4.40E-1 3 2.27E-1 0 T.76E-1 3

D a i l y Intak e (mg/kg/day ) 2.94E-1 2 4.40E-1 3 2.27E-1 0 1.76E-1 3 Slop e

Facto r (mg/kg/day)- 1 1.50E+0 1 8.40E+0 0 6.30E+0 0 4.10E+0 1

Subchroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6

. 1.14E-0 4 8.60E-0 5

Chroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6 1.14E-0 4 8.60E-0 5 Carcinogeni c

Ris k 4.22E-1 1 1.60E-1 3 3.17E-1 2 2.32E-1 2

Hazar d Quot i en t 2.58E-0 8 7.72E-0 8 1.99E-0 6 2.05E-0 9

Hazar d Quotien t 2.58E-0 8 7.72E-0 8 1.99E-0 6 2.05E-0 9 Tota l

Ris k

4.79E-1 1

Hazar d Inde x

2.10E-0 6

Hazar d Inde x

2.10E-0 6Adul t Visito r Inhalatio n o f Particulate s Reasonabl e Maximu m Exposur e
1 | Carcinogeni c

Ris k i Chemica l Inhalatio n

Dail y Concentratio n Intak e Facto r Intak e Chemica l Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I

i | Hazar d Inde x - - Subchroni c i (mg/m3) <m3/kg/day )

(mg/kg/day ) 5.03E-0 8 1.82E-0 3

9.14E-1 1 3.61E-1 0 1.82E-0 3

6.56E-1 3 1.01E-0 8 1.82E-0 3

1.84E-1 1 1.20E-0 9 1.82E-0 3

2.18E-1 2

Chemica l Inhalatio n

Daily Concentratio n Intak e Facto r Intak e Chemica l Antimon y Chromiu m V I Manganes e Mercur y

i | Hazar d Inde x - - Chroni c i (rng/m3) (m3/kg/day ) (mg/kg/day ) 8.19E-0 9 4.24E-0 3

3.47E-1 1 1.20E-0 9 4.24E-0 3

5.09E-1 2 7.39E-0 7 4.24'E-'0 3

3.13E-0 9 7.88E-1 0 4.24E-0 3

3.34E-1 2 • " " " " : ••..

.
•• "

.. .

... " :

. . Chemica l Inhalatio n

Dail y Concentratio n Intak e Facto r Intak e Chemica l Antimon y Chromiu m V I Manganes e ,.•••" --'-•"••. Mercur y (mg/m3 ) (m3/kg/day )

(mg/kg/day ) 8.19E-0 9 4.24E-0 3

3.47E-1 1 1.20E-0 9 4.24E-0 3

5.09E-1 2 7.39E-0 7 4.24E-0 3

3.13E-0 9 7.88E-1 0 4.24E-0 3

3.34E-1 2 Slop e

Facto r ( mg/kg/day ) - 1 1.50E+0 1 8.40E+0 0 6.30E+0 0 4.10E+0 1

Subchroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-06

. 1

. HE-0 4 8.60E-0 5

Chroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6 1.14E-0 4 8.60E-0 5 Carcinogeni c

Ris k 1.37E-0 9 5.51E-1 2 1.16E-1 0 8.94E-1 1

Hazar d Quotien t 3.05E-0 7 8.92E-0 7 2.75E-0 5 3.88E-0 8

Hazar d Quotien t 3.05E-0 7 8.92E-0 7 2.75E-0 5 3.88E-0 8 Tota l

Ris k

1.58E-0 9

Hazar d Inde x

2.87E-0 5

Hazar d Inde x

2.87E-0 5Chil d Visito r Ingestio n o f Tailin g Averag e Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Arsenic " Berylliu m Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c 1

1 I Chemica l Concentratio n (mg/kg ) 1.89E+02 1.28E+0 0

I I I Chemica l Concentratio n (mg/kg ) 2.54E+0 1 1.89E+0 2 1.28E+0 0 3.80E+0 0 3.13E+02 1.52E+0 0 3.06E+0 0 6.16E+0 3 I I : I Chemica l Concentratio n (mg/kg ) 2.54E+0 1 1.89E+02 1.28E+0 0 3.38E+0 1 3.80E+0 0 3.13E+0 2 1.52E+0 0 3.06E+0 0 6.16E+0 3 Ingestio n Intak e Facto r (kg/kg/day ) 7.66E-09 7.66E-09
Ingestio n Intak e Facto r (kg / kg/day ) 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8,94E-0 8 8.94E-0 8 8.94E-0 8

•' •'•• •

:...,. . . Ingestio n Intak e Facto r (kg/kg/day ) 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 8.94E-0 8 D a i

l y Intak e (mg/kg/day ) 1.45E-0 6 9.81E-0 9

Dail y Intak e (mg/kg/day ) 2.27E-0 6 1.69E-0 5 1.14E-0 7 3.40E-0 7 2.80E-0 5 1.36E-0 7

, 2.74E-0 7 5.51E-0 4

Daily Intak e (mg/kg/day ) 2.27E-0 6 1.69E-0 5 1.14E-0 7 3.02E-0 6 3.40E-0 7 2.80E-0 5 1.36E-0 7 2.74E-0 7 5.51E-0 4 Slop e

Facto r (mg/kg/day ) - 1 1..75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-0 2 3.00E-0 4 7.00E-0 4 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-02 3.00E-0 4 7.00E-0 4 3.00E-0 1 Carcinogeni c

Ris k 2.53E-0 6 4.22E-0 8

Hazar d Quotien t 5.68E-0 3 5.63E-0 2 2.29E-0 5 1.70E-0 5 7.56E-0 4 4.53E-0 4 3.91E-0 4 2.75E-0 3

Hazar d Quotien t 5.68E-0 3 5.63E-0 2 2.29E-0 5 3.02E-0 3 6.79E-0 5 7.56E-0 4 4.53E-0 4 3.91E-0 4 1.84E-0 3 Tota l

Ris k
2.58E-0 6

Hazar d Inde x

6.64E-0 2

Hazar d Inde x

6.85E-0 2Chil d Visito r Ingestio n o f Tailin g Reasonabl e Maximu m Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m

1 | Hazar d Inde x - - Subchroni c i Chemica l Ant i mon y Arseni c Berylliu m Chromiu m V I Coppe r Mercur y Thalliu m (i n soluble salts ) Zin c

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c 1

1 1 Chemica l Concentratio n (rag/kg ) 2.33E+02 1.67E+0 0
I I Chemica l Concentratio n (mg/kg > 3.79E+0 1 2.33E+02 1.67E+0 0 5.54E+0 0 3.88E+0 2 3.65E+0 0 6.57E+0 0 9.20E+0 3 I

: | | Chemica l Concentratio n (mg/kg ) 3.79E+0 1 2.33E+0 2 1.67E+0 0 4.67E+0 1 5.54E+0 0 3.88E+0 2 3.65E+0 0 6.57E+0 0 9.20E+0 3 Ingestio n Intak e Facto r (kg/kg/day ) 3.51E-0 8 3.51E-0 8
Ingestio n Intak e Facto r (kg/kg/day ) 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7

Ingestio n Intak e Facto r (kg/kg/day ) 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 4.10E-0 7 Daily

Intak e (mg/kg/day ) 8.18E-0 6 5.86E-0 8

Dail y Intak e (mg/kg/day ) 1.55E-0 5 9.55E-0 5 6.84E-0 7 2.27E-0 6 1.59E-0 4 1.50E-0 6 2.69E-0 6 3.77E-0 3

Dail y Intak e (mg/kg/day ) 1.55E-0 5 9.55E-0 5 6.84E-0 7 1.91E-0 5 2.27E-0 6 1.59E-0 4 1.50E-0 6 2.69E-0 6 3.77E-0 3 Slop e

Facto r (mg / kg/day)

- 1 1.75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-02

. 3.70E-0 2 3.00E-0 4 7.00E-0 4 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 4 7.00E-0 4 3.00E-0 1 Carcinogeni c

Ris k 1.43E-0 5 2.52E-0 7

Hazar d Quotien t 3.88E-0 2 3.18E-0 1 1.37E-0 4 1.13E-0 4 4.30E-0 3 4.98E-0 3 3.85E-0 3 1.88E-0 2

Hazar d Quot i en t 3.88E-02 3.18E-0 1 1.37E-0 4 1.91E-0 2 4.54E-0 4 4.30E-0 3 4.98E-0 3 3.85E-0 3 1.26E-0 2 Tota l

Ris k
1.46E-0 5

Hazar d Inde x

3.89E-0 1

Hazar d Inde x

4.02E-0 1Dir t Bike r Ingestio n o f Tailin g Averag e Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m

i | Hazar d Inde x - - Subchroni c i Chemica l Antimon y Arsenic

- Berylliu m Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c

i | Hazar d Inde x - - Chroni c i Chemica l

.,...;..-.. . . . Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c 1

1 I Chemi c a I Concentratio n (mg/kg ) 1.89E+02 1.28E+0 0 I I I Chemica l Concentratio n < mg/kg ) 2.54E+0 1 1 .89E+0 2 1.28E+0 0 3.80E+0 0 3.13E+0 2 1.52E+0 0 3.06E+0 0 6.16E+0 3

:::." : > . .
I I | Chemica l Concentratio n (mg/kg ) 2.54E+0 1 1.89E+02 1.28E+0 0 3.38E+0 1 3.80E+0 0 3.13E+02 1.52E+0 0 3.06E+0 0 6.16E+0 3 Ingestio n Intak e Facto r (kg/kg/day ) 2.55E-0 9 2.55E-0 9
Ingestio n Intak e Facto r (kg/kg/day )
1 .99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8
Inges t i on Intak e Facto r (kg/kg/day ) 1.99E-0 8 1.99E-0 8 1.99E-0 8 1 .99E-0 8 1 .99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 1.99E-0 8 D a i

l y Intak e (mg/kg/day ) 4.83E-0 7 3.27E-0 9

Dail y Intak e (mg/kg/day ) 5.05E-0 7 3.75E-0 6 2.54E-0 8 7.55E~0 8 6.22E-0 6 3.02E-0 8 6.08E-0 8 1.22E-0 4

D a i l y Intak e (mg/kg/day ) 5.05E-0 7 3.75E-0 6 2.54E-0 8 6.71E-0 7 7.55E-0 8 6.22E-0 6 3.02E-0 8 6.08E-0 8 1.22E-0 4 Slop e

Facto r (mg/kg/day)- 1 1.75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2

. 3.70E-0 2 3.00E-0 4 7.00E-0 4 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 4 7.00E-0 4 3.00E-0 1 Carcinogeni c

Ris k 8.45E-0 7 1.41E-0 8

Hazar d Quotien t 1.26E-0 3 1.25E-0 2 5.08E-0 6 3.77E-0 6 1.68E-0 4 1.01E-0 4 8.68E-0 5 6.12E-0 4

Hazar d Quotien t 1.26E-0 3 1.25E-0 2 5.08E-0 6 6.71E-0 4 1.51E-0 5 1.68E-0 4 1.01E-0 4 8.68E-0 5 4.08E-0 4 Tota l

Ris k
8.59E-0 7

Hazar d Inde x

1.48E-0 2

Hazar d Inde x

1.52E-0 2Dirt Biker Ingestio n o f Tailin g Reasonabl e Maximu m Exposur e

1 | Carcinogeni c

Ris k i Chemica l Arseni c Berylliu m

i ] Hazar d Inde x - - Subchroni c i Chemica l Antimon y Arsenic " Berylliu m Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c

i | Hazar d Inde x - - Chroni c i Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Mercur y Thalliu m (i n solubl e salts ) Zin c 1

1 1 Chemica l Concentratio n (mg/kg ) 2.33E+0 2 1.67E+0 0 I I I Chemica l Concentratio n (mg/kg ) 3.79E+0 1 2.33E+0 2 1.67E+0 0 5.54E+0 0 3.88E+02 3.65E+0 0 6.57E+0 0 9.20E+0 3 I I I : Chemica l Concentratio n (mg/kg ) 3.79E+0 1 2.33E+0 2 1.67E+0 0 4.67E+0 1 5.54E+0 0 3.88E+0 2 3.65E+0 0 6.57E+0 0 9.20E+0 3 Ingestio n Intak e Facto r (kg/kg/day ) 1.53E-0 8 1.53E-0 8
Ingestio n Intak e Facto r (kg / kg/day) 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7
Ingestio n Intak e Facto r (kg/kg/day ) 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 1.19E-0 7 D a i

l y Intak e (mg/kg/day ) 3.57E-0 6 2.56E-0 8

O a i l y Intak e (mg/kg/day ) 4.52E-0 6 2.78E-0 5 1.99E-0 7 6.60E-0 7 4.62E-0 5 4.35E-0 7 7.83E-0 7 1.10E-0 3

D a i l y Intak e (mg/kg/day ) 4.52E-0 6 2.78E-0 5 1 .99E-0 7 5.57E-0 6 6.60E-0 7 4.62E-0 5 4.35E-0 7 7.83E-0 7 1.10E-0 3 Slop e

Facto r (mg/kg/day ) - 1 1.75E+0 0 4.30E+0 0

Subchroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 2.00E-0 2 - 3.70E-0 2 3.00E-0 4 7.00E-0 4 2.00E-0 1

Chroni c R F D (mg/kg/day ) 4.00E-0 4 3.00E-0 4 5.00E-0 3 1.00E-0 3 5.00E-0 3 3.70E-0 2 3.00E-0 4 7.00E-0 4 3.00E-0 1 Carcinogeni c

Ris k 6.25E-0 6 1.10E-0 7

Hazar d Quotien t 1.13E-0 2 9.26E-0 2 3.98E-0 5 3.30E-0 5 1.25E-0 3 1.45E-0 3 1.12E-0 3 5.48E-0 3

Hazar d Quotien t 1.13E-0 2 9.26E-0 2 3.98E-0 5 5.57E-0 3 1.32E-0 4 1.25E-0 3 1.45E-0 3 1.12E-0 3 3.65E-0 3 Tota l

Ris k
6.36E-0 6

Hazar d Inde x

1.13E-0 1

Hazar d Inde x

1.17E-0 1Dir t Bike r Inhalatio n o f Particulate s Averag e Exposur e Carcinogeni c Ris k
Chemica l Arseni c Jerylliu m Cadmiu m (food ) :hromiur a V I
Hazar d Inde x - - Subchroni c Chemica l \ntimon y Chromiu m V I langanes e lercur y
Hazar d Inde x - - Chroni c Chemica l \ntimon y :hromiu m V I langanes e lercur y I

1 I Chemica l Concentratio n <mg/m3 ) 4.08E-0 8 2.76E-1 0 7.30E-09 8.21E-1 0 I I I Chemica l Concentratio n (mg/m3 ) 5.49E-0 9 8.21E-1 0 4.23E-0 7 3.28E-1 0

I | -"-'"• , I Chemica l Concentratio n <mg/m3 ) 5.49E-0 9 8.21E-1 0 4.23E-0 7 3.28E-1 0 Inhalatio n Intak e Facto r (m3/kg/day ) 1.84E-0 4 1.84E-0 4 1.84E-0 4 1.84E-0 4

Inhalatio n Intak e Facto r (m3/kg/day ) 1.43E-0 3 1.43E-0 3 1743E"0 3 1.43E-Q 3

Inhalatio n Intak e Facto r (hfi/kg/day ) 1.43E-0 3 1.43E-0 3 1.43E-0 3 1.43E-0 3 D a i

l y Intak e (mg/kg/day ) 7.50E-1 2 5.07E-1 4 1.34E-1 2 1.51E-1 3

Dail y Intak e (ing/kg/day) 7.85E-1 2 1.17E-1 2 6.05E-1 0 4.69E-1 3
"•••'I..

.
D a i l y Intak e (mg/kg/day ) 7.85E-1 2 1.17E-1 2 6.05E-1 0 4.69E-1 3 Slop e

Facto r (mg/kg/day ) - 1 1.50E+0 1 8.40E+0 0 6.30E+0 0 4.10E+0 1

Subchroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6

. 1.14E-0 4 8.60E-0 5

Chroni c R F D (mg/kg/day ) 1.14E-0 4 5.70E-0 6 1.14E-0 4 8.60E-0 5 Carcinogeni c

Ris k 1.13E-1 0 4.26E-1 3 8.46E-1 2 6.19E-1 2

Hazar d Quotien t 6.89E-0 8 2.06E-0 7 5.31E-0 6 5.45E-0 9

Hazar d Quotien t 6.89E-0 8 2.06E-0 7 5.31E-0 6 5.45E-0 9 Tota l

Ris k

1.28E-1 0

Hazar d Inde x

5.59E-0 6

Hazar d Inde x

5.59E-0 6Dir t Bike r Inhalatio n o f Particulate s Reasonabl e Maximu m Exposur e Carcinogeni c Ris k Chemica l \rseni c Jerylliu m :admiu m (food ) :hromiu m V I
Hazar d Inde x - - Subchroni c Chemica l \ntimon y Chromiu m V I Manganes e Mercur y
Hazar d Inde x - - Chroni c Chemica l Antimon y Chromiu m V I Manganes e

: •lercury I

1 I Chemica l Concentratio n Cmg/m3) 5.03E-0 8 3.61E-1 0 1.01E-0 8 1.20E-09

1 1 I Chemica l Concentratio n (mg/m3) 8.19E-0 9 1.20E-0 9 7.39E-0 7 7.88E-1 0

- I I • ••••'•••

. 1 Chemica l Concentratio n <mg/m3 ) 8.19E-0 9 1 .20E-0 9 7.39E-0 7 7.88E-1 0 Inhalatio n Intak e Facto r (m3/kg/day > 1.93E-0 3 1.93E-0 3 1.93E-0 3 1 .93E-03

Inhalatio n Intak e Facto r (m3/kg/day ) 1.50E-0 2 1.50E-0 2 1.50E-0 2 1.50E-0 2

Inhalatio n Intak e Facto r (m3/kg/day ) 1.50E-0 2 1.50E-0 2 1.50E-0 2 1.50E-0 2 D a i

l y Intak e (mg/kg/day ) 9.71E-1 1 6.97E-1 3 1.95E-1 1 2.32E-1 2

Daily Intak e (rag / kg/day ) 1.23E-1 0 1.80E-1 1 1.11E-0 8 1.18E-1 1

Dail y Intak e (mg/kg/day ) 1.23E-1 0 1.80E-1 1 1.11E-0 8 1.18E-1 1 Slop e

Facto r (mg/kg/day ) - 1 1.50E+0 1 8.40E+0 0 6.30E+0 0 4.10E+0 1

Subchroni c R F D (mg/kg/day )
1

. HE-0 4 5.70E-0 6

. 1

. HE-0 4 8.60E-0 5

Chroni c R F D (mg/kg/day )
1

. HE-0 4 5.70E-0 6 1

. HE-0 4 8.60E-0 5 Carcinogeni c

Ris k 1.46E-0 9 5.85E-1 2 1.23E-1 0 9.50E-1 1

- Hazar d Quotien t 1.08E-0 6 3.16E-0 6 9.73E-0 5 1.38E-0 7

Hazar d Quotien t 1.08E-0 6 3.16E-0 6 9.73E-0 5 1.38E-0 7 Tota l

Ris k

1.68E-0 9

Hazar d Inde x

1.02E-0 4

Hazar d Inde x

1.02E-0 4Intak e

Factor : Fluvia l Tailin g January 28 , 199 3 16:5 7 Description : Adul t Visitor-Tailin g

Ingestio n Abbreviation : ART G Pathwa y Type : Ingestio n o f Soi l
Intak e Facto r = < I R x E F x ED x H E X F I x C F x S S ) ( B U x A T ) Parameters : Abbreviatio n I R EF E D M E F I C F

- S S B U A T Descriptio n Carcinogeni c A v e RM E Ingestio n Rate(mg/day ) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Fractio n Contaminate d 1

0 2 9 3

. 5 1 3 6 8 7 2 4

. 5 1 Non-Carcinogeni c A v e RM E
1 0 2 9 3

. 5 1 3 6 8 7 2 4

. 5 1 Conversio n Facto r (kg/mg ) .00000 1 .00000 1 .00000 1 .00000 1 Site-specifi c Facto r 1 1 1 1 Bod y Weigh t (kg ) 2 5 5 7 2 5 5 7 Averagin g Tim e (dys ) 2555 0 2555 0 109 5 876 0 Intak e Facto r Calculations : Carcinogenic : Averag e Exposur e ( 1.00E+0 1 x 2.90E+0 1 x 3.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 6.81E-1 0 = (

2.50E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Maximu m Exposur e ( 3.60E+O T x 8.70E+0 1 x 2.40E+0 1 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 2.58E-0 8 = (

5.70E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e ( 1.00E+0 1 x 2.90E+0 1 x 3.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 1.59E-0 8 = (

2.50E+0 1 x 1.10E+0 3 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 3.60E+0 1 x 8.70E+0 1 x 2.40E+0 1 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 7.53E-0 8 = (

5.70E+0 1 x 8.76E+0 3 )Intak e

Factor : Fluvia l Tailin g Januar y 28 , 199 3 16:5 7 Description : ChiI d Visitor-Tailin g Ingestio n Abbreviation : CRT G Pathwa y Type : Ingestio n of Soi l
Intak e Facto r =
Parameters : <

I R x E F x E D x M E x F I x C F x S S ) ( B W x A T ) Carcinogeni c Abbreviatio n IR EF E D M E F I C F



### - s s B W A T Descriptio n Ingestio n Rate(mg/day ) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Fractio n Contaminate d Conversio n Facto r (kg/mg ) Site-specifi c Facto r Bod y Weigh t (kg ) Averagin g Tim e (dys ) A v e

3 6 2 9 6

. 5 1 .00000 1 

### 1 1 6 2555 0 R M E
5 5 8 7 6

, :

. 5

. 1 .00000 1 

### 1 1 6 2555 0 Non

- Carcinogeni c A v e 3 6 2 9 6

. 5 1 .00000 1 

### 1 1 6 219 0 R M E

: 5 5 8 7 6

. 5 1 .00000 1 

### 1 1 6 219 0 Intak e Facto r Calculations :

: Carcinogenic : Averag e Exposur e ( 3.60E+0 1 x 2.90E+0 1 x 6.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 7.66E-0 9 = (

1.60E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Maximu m Exposur e ( 5.50E+O T x 8.70E+0 1 x 6.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 > 3.51E-0 8 = (

1.60E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e ( 3.60E+0 1 x 2.90E+0 1 x 6.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 8.94E-0 8 = (

1.60E+0 1 x 2.19E+0 3 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 5.50E+0 1 x 8.70E+0 1 x 6.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 4.10E-0 7 = C

1.60E+0 1 x 2.19E+0 3 )Intak e

Factor : Fluvia l Tailin g January 28 , 199 3 16:5 7 Description : Dir t Biker-Tailin g Ingestio n Abbreviation : TUT G Pathwa y Type : Ingestio n of Soi l
Intak e Facto r = ( I R x E F x E D x H E x F I x C F x S S ) ( B W x A T ) Parameters : Abbreviatio n IR E F E D M E F I C F

- S S B W A T Descriptio n Carcinogeni c A v e RM E Ingestio n Rate(mg/day ) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Fractio n Contaminate d 2

5 2 9 9

. 5 1 5 0 8 7 9 • 5 1 Won-Carcinogeni c A v e RM E

Conversio n Facto r (kg/mg ) .00000 1 .00000 1 Site-specifi c Facto r 1 1 Bod y Heigh t (kg ) 5 0

5 0 Averagin g Tim e (dys ) 2555 0

2555 0 2

5 5 0 2 9 8 7 9 9

. 5

. 5 1 1 .00000 1 .00000 1 1 5 0 328 5 1 5 0 328 5 Intak e Facto r Calculations : Carcinogenic : Averag e Exposur e ( 2.50E+0 1 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 2.55E-0 9 = C

5.00E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Maximu m Exposur e ( 5.00E*0 1 x 8.70E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 1.53E-0 8 = (

5.00E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e ( 2.50E+0 1 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 1.99E-0 8 = (

5.00E+0 1 x 3.29E+03 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 5.00E+0 1 x 8.70E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 1 x 1.00E-0 6 x 1 ) 1.19E-0 7 = (

5.00E+0 1 x 3.29E+0 3 )Intak e

Factor : Fluvia l Tailin g January 28 , 199 3 16:5 7 Description : Dir t Biker-Tailin g Inhalatio n Abbreviation : TUT I Pathwa y Type : Inhalatio n ( I R x E T x E F x E D x H E x DF x C C x F I x S S Intak e Facto r =
Parameters : Abbreviatio n I R E T E F E D H E D F

- CC F I S S B W A T (

B W x A T ) Carcinogeni c Descriptio n Inhalatio n Rate(m3/hr ) Exposur e Time(hrs/dy ) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Hatri x Effec t Depositio n Facto r Ciliar y Clearanc e Fractio n Contaminate d Site-Specifi c Facto r Bod y Weight(kg ) Averagin g Time(dys ) A v e

1. 2 2 2 9 9

. 5 .7 5 1 1 1 5 0 2555 0 R H E
2. 1
2 ,: :' 8 7 9 1 .7 5

1 ^

1

1 5 0 2555 0 Non-Carcinogeni c A v e RH E
1. 2 2 2 9

. 5 .7 5 1 1 Y
, 5 0 328 5 2. 1 2 8 7 9 1 .7 5 1 1 1 5 0 3285 Intak e Facto r Calculations : Carcinogenic : Averag e Exposur e ( 1.20E+0 0 x 2.00E+0 0 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 7.50E-0 1 x 1 x 1 x 1 )

< 5.00E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Haximu m Exposur e ( 2.10E+0 0 x 2.00E+0 0 x 8.70E+0 1 x 9.00E+0 0 x 1 x 7.50E-0 1 x 1 x 1 x 1 ) 1.93E-0 3 = (

5.00E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e

< 1.20E+0 0 x 2.00E+0 0 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 7.50E-0 1 x 1 x 1 x 1 ) 1.43E-0 3 = <

5.00E+0 1 x 3.29E+0 3 ) Non-Carcinogenic :

Reasonabl e Haximu m Exposur e ( 2.10E+0 0 x 2.00E+0 0 x 8.70E+0 1 x 9.00E+0 0 x 1 x 7.50E-0 1 x 1 x 1 x 1 ) 1.50E-0 2 = (

5.00E+0 1 x 3.29E+0 3 )Intak e

Factor : Fluvia l Tailin g January 28 , 199 3 16:5 7 Description : Adul t Visitor-Tailin g

Inhalatio n Abbreviation : ARU I Pathwa y Type : Inhalatio n ( I R x E T x E F x E D x H E x DF x C C x F I x S S ) iiiua^c r rat-ti n — Parameters: ( B W x A T > Carcinogeni c Abbreviatio n I R E T EF E D M E D F



### - c c F I S S B W A T Descriptio n Inhalatio n Rate(m3/hr ) Exposur e Time(hrs/dy ) Exposur e Freq.(dys/yr ) Exposur e Duration(yrs ) Matri x Effec t Depositio n Facto r Ciliar y Clearanc e Fractio n Contaminate d Site-Specifi c Facto r Bod y Height(kg ) Averagin g Time(dys ) A v e

.6 3 2 2 9 9

. 5 .7 5 1 1 1 7 0 2555 0 R M E
.8 3 2 8 7 3 0 1 '••:.75 : :

- : 1 1 1 7 0 2555 0 Non-Carcinogeni c A v e RM E
.6 3 2 2 9 9

. 5 .7 5 

### 1 7 0 328 5 .8 3 2 8 7 3 0 1 .7 5 1 1 1 7 0 10950 Intak e Facto r Calculations : Carcinogenic : Averag e Exposur e : ( 6.30E-0 1 x 2.00E+0 0 x 2.90E+O T x 9.00E+0 0 x 5.00E-0 1 x 7.50E-0 1 x 1 x 1 x 1 ) 6.90E-0 5 = ( 7.00E+0 1 x 2.56E+0 4 ) Carcinogenic : Reasonabl e Maximu m Exposur e ( 8.30E-0 1 x 2.00E+0 0 x 8.70E+0 1 x 3.00E+0 1 x 1 x 7.50E-0 1 x 1 x 1 x 1 ) 1.82E-0 3 = <

7.00E+0 1 x 2.56E+0 4 ) Non-Carcinogenic :

Averag e Exposur e ( 6.30E-0 1 x 2.00E+0 0 x 2.90E+0 1 x 9.00E+0 0 x 5.00E-0 1 x 7.50E-0 1 x 1 x 1 x 1 ) 5.36E-0 4 = (

7.00E+0 1 x 3.29E+0 3 ) Non-Carcinogenic :

Reasonabl e Maximu m Exposur e ( 8.30E-0 1 x 2.00E+0 0 x 8.70E+0 1 x 3.00E+0 1 x 1 x 7.50E-0 1 x 1 x 1 x 1 ) 4.24E-0 3 = (

7.00E+0 1 x 1.10E+0 4 )Medi a

Chemica l Concentrations :

Fluvia l Tailin g Januar y 28 , 199 3 16:5 7 Medium : Particulate s Abbreviation : Dus t Mediu m Type : Particulat e / VOC s Subchroni c Chemica l Averag e

R.M.E

. Cmg/m3 > (mg/m3 ) Chronic/Carcinogeni c Averag e R.M.E

. (mg/m3 ) <mg/m3 ) Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Manganes e Mercur y Thalliu m (i n solubl e salts ) Zin c 5.49E-0 9 4.08E-0 8 2.76E-1 0 7.30E-0 9 8.21E-1 0 6.76E-0 8 4.23E-0 7 3.28E-1 0 2.94E-1 0 1.33E-0 6 8.19E-0 9 5.03E-0 8 3.61E-1 0 1.01E-0 8 1.20E-0 9 8.38E-0 8 7.39E-0 7 7.88E-1 0 3.41E-1 1 1.99E-0 6 5.49E-0 9 4.08E-0 8 2.76E-1 0 7.30E-09 8.21E-1 0 6.76E-0 8 4.23E-0 7 3.28E-1 0 2.94E-1 0 1.33E-0 6 8.19E-0 9 5.03E-0 8 3.61E-1 0 1.01E-0 8 1.20E-0 9 8.38E-0 8 7.39E-0 7 7.88E-1 0 3.41E-1 1 1.99E-0 6Medi a

Chemica l Concentrations :

Fluvia l Tailin g
Medium : Tailin g Abbreviation : Tailin g Mediu m Type : So i I Subchroni c Chemica l Antimon y Arseni c Berylliu m Cadmiu m (food ) Chromiu m V I Coppe r Manganes e Mercur y Thalliu m (i n solubl e salts ) Zin c Averag e (mg/kg ) 2.54E+0 1 1.89E+0 2 1.28E+0 0 3.38E+0 1 3.80E+0 0 3.13E+02 1.96E+0 3 1.52E+0 0 3.06E+0 0 6.16E+0 3 R.M.E

. (mg/kg ) 3.79E+0 1 2.33E+02 1.67E+0 0 4.67E+0 1 5.54E+0 0 3.88E+0 2 3.42E+0 3 3.65E+0 0 6.57E+0 0 9.20E+0 3 Chronic/Carcinogeni c

Averag e (mg/kg ) 2.54E+0 1 1.89E+0 2 1.28E+0 0 3.38E+0 1 3.80E+0 0 3.13E+02 1.96E+0 3 1.52E+0 0 3.06E-I-0 0 6.16E+0 3 R.M.E

. (mg/kg ) 3.79E+0 1 2.33E+0 2 1.67E+0 0 4.67E+0 1
: 5.54E+0 0 3.88E+0 2 3.42E+0 3 3.65E+0 0 6.57E+0 0 9.20E+0 3 January

28 , 199 3 16:5 7

### APPENDI X G SUMMAR Y OF TH E CHEMICA L DAT A QUALIT Y ASSURANC E PROCEDURE S

22909C-22327/R22.T

S 01-28-93(7:42pm)/RPT/1 0

### APPENDI X G SUMMAR Y OF TH E CHEMICA L DAT A QUALIT Y ASSURANCE PROCEDURE S 

### T h e Tailin g Disposa l Are a Remedia l Investigatio n (RI ) wa s performe d in accordanc e wit h th e requirement s o f th e Administrativ e Consen t Orde r 91-19 (AGO)

. T h e approve d Tailing Disposa l Are a Sampling an d Analysi s Pla n (SAP ) incorporate d b y referenc e Sampling an d Analysi s Plan
, Revision 3.1 , Yak Tunne l Operabl e Unit
, Californi a Gulch
, Leadville
, Colorad o (Res-ASARC O 1990)
, wit h modification s t o th e Y a k Tunne l SA P describe d in Sectio n 3. 0 o f th e Tailin g Disposa l Are a wor k plan

. Th e 

### Tailing Disposa l Are a Work Pla n include d th e Fiel d Samplin g Pla n (FSP)
, whic h describe s th e samplin g tasks require d fo r th e remedia l investigatio n o f tailing s disposa l site s an d potentia l fluvia l tailing s deposit s locate d within th e Californi a Gulc h Site

. Standar d Operatin g Procedure s (SOPs ) incorporate d thos e describe d i n Section s 8. 0 an d 9. 0 o f the Ya k Tunne l QAPP
, wit h modification s t o the procedure s describe d i n the Appendi x A o f th e Tailing Disposa l Area Wor k Plan

. Collectio n an d handlin g o f th e sample s wa s conducte d i n accordanc e wit h th e FSP
, an d ASARC O wa s responsibl e fo r t h e managemen t o f th e fiel d samplin g program

. Chemica l analyse s wer e performe d b y CL P method s fro m th e CL P Statemen t o f Wor k S O W 7/8 8 (EP A 1988 ) an d SO W ILM01. 0 (EP A 1990)
, an d Method s fo r Chemica l Analysi s o f Wate r an d Waste s (EP A 1983)

. Coordinatio n an d oversigh t o f th e laboratorie s an d analytica l progra m wa s undertake n b y ASARCO

. T h e laborator y responsibilities , th e analytica l parameter s an d analytica l procedures , an d th e QA/Q C requirement s wer e thos e specifie d i n Sectio n 5. 0 o f th e Ya k Tunne l QAPP

. 

### Mino r change s t o thes e specification s wer e describe d i n Sectio n 3. 2 o f th e Tailing Disposa l Are a Wor k Plan

. Thes e requirement s ar e designe d t o assure tha t th e qualit y o f analytica l measurement s i s know n an d tha t a determinatio n ca n b e mad e a s t o th e acceptabilit y o f th e dat a fo r intende d uses
. Reportin g o f result s b y th e laboratorie s was i n complianc e wit h appropriat e CL P protocol s fo r CL P analyses , an d provisio n o f analytica l result s an d QA/Q C summar y 22909C-22327/R22. G

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### sheet

s fo r non-CL P methods

. Ra w dat a packages wer e supplie d fo r al l analyses , includin g non-CL P methods , fo r referenc e durin g dat a validation

. Soli d sample s wer e analyze d fo r tota l metals , o r th e short metal s lis t comprisin g arsenic , lead , cadmium , an d 

### zinc

. Selecte d solid s sample s wer e evaluate d fo r leachabl e metals

. Thes e sample s wer e extracte d following th e SW-84 6 Metho d 131 2 leachin g procedure , an d th e leachat e analyze d fo r th e targe t metals

. Wate r sample s wer e analyze d fo r dissolve d an d tota l 

### metals , an d majo r water qualit y constituents

. Dat a validatio n was conducte d b y dat a validatio n companie s contracte d b y ASARCO

. T o establis h consisten t validatio n procedures , th e companie s conductin g th e dat a 

### validatio n followe d th e checklis t 'Dat a Validatio n Forms, Par t III
, Attachmen t A o f th e QAPP
, fro m th e Yak Tunne l SAP

. Eac h stag e o f th e dat a analysis , dat a reporting , an d dat a validatio n wa s monitore d b y ASARCO
, The purpos e o f th e validatio n wa s t o assess th e dat a quality , an d wa s a proces s t o review t h e analytica l dat a generate d through th e overal l analytica l program

. Afte r performin g th e validatio n steps , som e dat a faile d th e acceptanc e criteria , an d i n accordanc e wit h th e 

### QAP P suc h dat a ar e qualifie d a s estimated , o r no t detected , an d i n extreme case s dat a ar e rejecte d a s unusable

. Dat a tha t hav e bee n qualifie d a s estimated , an d flagge d T
, denot e tha t th e presenc e o f th e analyt e was positivel y identified , bu t th e associate d numerica l valu e i s th e approximat e concentratio n o f th e analyt e i n th e sample

. Dat a tha t wer e flagge d 'R denot e that thes e sampl e result s ar e rejecte d du e t o serious 

### deficiencie s i n the abilit y t o analyz e the sample , and that the presenc e or absence o f the analyt e canno t b e verified

. F o r analyse s conducte d unde r th e Tailing Disposa l Are a Wor k Plan
, positiv e result s reporte d betwee n th e Instrumen t Detectio n Limit (IDL ) an d th e Contrac t Require d Detectio n Limi t (CRDL ) wer e reporte d a s non-detec t at th e CRD L value , a s specifie d 

### i n th e approve d dat a validatio n protocols

. Fo r analyse s conducte d unde r th e Surfac e Wate r Work Pla n (Surfac e Wate r Work Plan
, Californi a Gulc h Site
, Leadville
, Colorado
, 

### WCC
, March 1991)
, positiv e result s reporte d betwee n th e IDL an d th e CRD L wer e qualifie d as estimated , an d flagge d M, an d non-detec t dat a wer e reporte d a t th e IDL
, a n d flagge d 'U, a s specifie d i n th e validatio n protocols

.
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### T h e

qualit y assuranc e objective s o f accuracy , precision , completeness , comparability , an d 

### representativenes s wer e describe d i n Section s 6. 2 and 6. 3 o f the Ya k Tunne l SA P and
wer e reviewed as par t o f th e dat a validatio n process

. Mino r modification s t o th e analytica l progra m fro m th e Ya k Tunne l SA P ar e note d in th e Sectio n 3. 2 o f th e Tailing Disposa l Are a Wor k Plan

. Accurac y wa s assesse d b y evaluatio n o f th e percen t recoverie s o f spike d analyte s i n th e laboratory contro l samples , CRD L standar d analyses , matri x spik e samples , an d fo r graphit e furnac e atomi c absorptio n analyses , th e pos t digestio n spik e samples

. Precisio n 

### w a s assesse d b y evaluatin g th e relativ e percen t differenc e (RPD ) obtaine d fro m result s 

### o f laboratory contro l samples , duplicat e samples , an d fiel d duplicat e samples

. Th e dat a validatio n process provide s an assessmen t o f accurac y and precisio n throug h the evaluatio n o f fiel d an d laborator y Q C sampl e result s an d a compariso n t o acceptanc e limit s specifie d in th e QAPP

. 

### Analytica l representativenes s

i s the degre e t o whic h dat a accuratel y an d precisel y represen t the concentratio n o f targe t compound s i n the samples , and wa s evaluate d b y analyzin g tw o split s fro m eac h homogenize d fiel d sampl e assigne d a s a fiel d duplicat e sample

. Th e dat a validatio n proces s provide d a n assessmen t o f representativenes s 

### throug h th e compariso n an d RPD s fo r eac h analyt e o f th e fiel d duplicat e pair

. Dat a outsid e o f th e acceptanc e limit s fo r accuracy, precision , an d representativenes s wer e assigne d T o r 'R qualifier s i n accordanc e wit h th e validatio n protocols

. The overal l completenes s o f th e collecte d an d analyze d dat a wa s assesse d o n a regula r 

### basi s i n th e monthly , quarterly , an d annua l reports , i n accordanc e wit h th e Ya k Tunne l SAP

. Laborator y completenes s was assesse d as par t o f th e validatio n process

. 

### Comparabilit y expresse s th e confidenc e wit h whic h on e dat a se t ca n be compare d wit h another

. Qualitatively
, differen t dat a set s ca n b e considere d t o b e comparabl e a s th e dat a wer e analyze d followin g th e sam e analytica l protocols , an d wer e validate d followin g th e sam e validatio n procedures

.

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### ASARC O

wa s responsibl e fo r th e dat a management , includin g verificatio n o f data , dat a entry , dat a storage , an d reportin g an d transmitta l o f data

. Th e databas e was maintaine d
a t th e ASARC O office s i n Golden

. Th e validate d data , includin g assigne d qualifiers , wer e manuall y entere d o r electronicall y loade d int o th e database

. Followin g entr y o f th e dat a i n th e ASARC O database , har d cop y o r dis k copie s o f th e validate d dat a wer e supplie d t o WC C o n a n ongoin g basis

. WC C the n entere d th e ASARCO-supplie d

dat a int o th e WC C databas e syste m fo r us e i n reportin g an d interpretation

. Wher e required , 

### changes t o th e initiall y reporte d dat a wer e take n fro m correcte d dat a report s supplie d b y ASARCO

. 

### T h e dat a report s extracte d fro m th e WC C databas e forme d th e basi s fo r dat a 

### interpretatio n durin g compilatio n o f th e Remedia l Investigatio n (RI ) Reports
, an d dat a us e wa s based o n thi s data , includin g estimate d data

. A s th e validatio n proces s evaluate d th e dat a quality , an d appropriat e dat a qualifier s wer e assigne d durin g th e validation , th e dat a wer e use d as reporte d fro m th e databas e . Wit h th e exceptio n o f dat a rejecte d durin g th e validatio n process , al l data , includin g estimate d data , wer e 

### considere d t o mee t th e qualit y assurance objective s an d t o b e usabl e fo r th e purpose s o f compilin g th e Tailin g Disposa l Are a RI

. Th e dat a sufficienc y an d usabilit y t o mee t the specifi c projec t objective s unde r the RI i s discusse d i n Sectio n 13

.

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