3.5. p 

### I pd&zAL I N 

### I

### T I AL Fi

### EV 

### IE

### W ENG 

### IN'E 

### E R 

### IM G RFFORT

3'TI-IEF. TJSES: None fcund b!S 3s : Yes (all FblNs) Genzr6l Eqp. : Respirator: .Yeaith Effects: Label: Yes (ail P."!Nsj

17 is~I/PEL (FMN or raw materials) :PMN: 

### 00-1121, 1122, 1123, 

### 1125 i 

### 1126

213.95 278.79

r- 

### vun~umer

A 

### LTse: No SAT 

### (concerns): 

### Ground Water: negligible Health: 1-2 inhalation only Ecc : PBT: 

### 2 all releases to 

### surface water P3I32T2 APC , L;LLCPATIONAL EXPGSURE RATING: 2 ASSUMPTIONS: 

### The 

### PB scores for 

### all PMNs 

### are 2 or greater, therfore assessed for inhalation, dermal, and drinking water. 

### All PMN substances are manufacutured and used interchangably, the releases and exposures assessed are applicabli ts 

### each PMN 

### substance. The submission provided 

### 3 different processing opticns and 

### 5 use options fsr these 

### PMN substances.

# 3 N 0 Page # 3

### INiTIAL REVIEW ENGINEERING RE,PORT 

### Page # 

### 4 PNN: 

### 90-1121, 

### 1122, i123, 1125 6( 1126 DlFG : SiC3/3catim: 1 submitter site (Washington, PA 15301) Days/yr: 42.5-170 Frocess Descripticn: Wet Grind: 

### Cry Grind:

7-%7,7-- z~1~ L?.3N:..IENT+?.5 

### RELEASES (Eqpt. 

### cleaning, container resiclue, etc. ) : WAT Z 

### R : kg/site-day over 

### Days /year 

### from: to: basis: ;Ip.j 9 

### from: kg/site-day 

### over hysiyear

### kg/site-day Days/year 

### from: to: basis:


### from: to: basis: INCINERATION: .frcrn: 

### basis: 5

cver


### .kg/site-day over Days/ year

kg/ yr J

### INITIAL REVIEW ENGINEERING REPORT PEN: 

### 00-1121, 1122, 

### 1123, 1125 & 

### 1126
Cays 

### /yr: Page # 

### 6 (submissionj

.. ( 

### submission j IEhsiation: 

### 1121: mg/day aver Days/yr 

### 1122: 

### mg/day over Days/yr 1123: mg/day over Days/yr 

### 1125: 

### mg/day over Days/yr 

### 1126: mg/day 

### over Days/yr 

### Number of 

### workers with 

### inhalation exposure: 

### Basis:

&ma? * contact with 3 

### concentration Basis: Note:



### mg/day 

# 6

### ..
Site/Locati.cja: 1 submitter site (Washington, PA 15301) 23 *<.S // :jr : 3 - 1 

### 2 9 

### ... Process Descript icn: SN*JI3CNMENTAL 

### RELEASES (Eqpt. cleaning, container residue, etc. : 

### WATER: AIR: 

### from: ts: ._ . kg/site-day cver Days/year basis: 

### I

NC 1NEF.AT

### ION : z Lrom: basis:

### INITIAL REVIEW ENGINEERING REPORT 

### Page # 8 

### ?MM: 00-1121, 1122, 1123, 1125 tG 1126 OCCUPATIONAL+ EXPOSURE 

### Tor. !? sf 

### wcrkers: 

### - i?ays/yrr 

### submission) Inhalation: 1121: rr,g/day 

### aver Days/ 

### yr 1122: mq/day c7er 

### r)ays/yr 

### 1123: mg/day over Days/yr 1125: mg/day over Days/yr 

### 1126: mg/day over Days/yr Number 

### of.workers with 

### inhalation 

### exposure: 

### Basis: Note:

2c?rn? - 

## - ccntact with 

### concentration Basis: mg/diay


# 8

### INITIAL REVIEW ENGINEERING REPORT Page $ 9 

### wm: 00-1121, 1122, 1123, 

### 1125 ,s 

### 1126 PROC 2: 1 SiteiLocatioQ: 9 proc/use sites (submission) 

### ._ Da\;s/yr: 100 (submission) Process Description: 

### EN

### V I

### F. 0

NME 

### NTAL REL

### E AS E 

### S WATER: 

### from: cc: (Eqpt. cleaning, container residue, etc. : kg/site-day over Days/year basis: 

### INCINERATION : 

### from: basis: 

### LANDFILL: from: basis: 

### note: AIR.:

. 

### frcm: to: kg/yr I kg/yr

kg/site-day ov3r basis:

..INITIAL REVIEW 

### ENGINEERING REPORT 

### Page # 

### 10 PMN : 00-1121, 

### 1122, 1123, 1125 -‘V r3-3 i: 

## - (conti 9C

### Cc! PAT I 0

i\J

### A&.: EX ?

### CS

### rJ 3

### E Tot. i+ -of workers: Days/yr: 

### Iz>3lat:on: ng/day over



### mg/day over Number of 

### workers Basis: Dermal * contact i 

### concentration Basis: G: 

### 1126



### Days/yr

Days/yr with 

### inhalation exposure: 

### with

. ,, ,

### IN I

### T I AI, REV 

### I E

### W Er\l 

### G 

### I N 

### EER ING 

### RE PORT Page # 

### 11 PMN: 30-1121, 

### 1122, 1123, 

### I125 & 

### 1126 USE: 

### Site/Locatiqg: 10 use sites 

### (submission) Daysfyr: 100 

### (submission) Process Description: ,--

EMVIRONMSNTAL RELEASES (Eqpt. 

### cleaning, contair,er 

### .residue, etc. ) : WATER: 

### from : to: basis: 

### INCINERATION: from: basis: 

### LANDFILL: 

### from: basis: note: AIR: 

### kg/site-day over Days/ year
kg/yr

### IPJ 

### I

### T I A L 2. 

### EV 

### I

### E W 

### E?\I

### G 

### I N E

### ER I NG 

### RE

### P0 

### RT Page # 

### 12 PMN: 

### 00-1121, 1122, 1123, 1125 & 

### 1126 LJSE: 

### (ront) 

### OCCU PATIONAL+EXPOSURE 

### Tst. 8 cf wcrkirs: 

### Days/yr: inhalation: 1121: 

### mg/day over Cays/yr 1122: mg/day over Days/yr 1123: 

### mg/day over Days/yr 

### 1125: 

### mg/day aver 

### Days/yr 1126: mg/day over 

### Days/yr Number 

### of workers with inhalation 

### exposure: Basis: Dermal: contact 

### with concentration .p Basis:
.. 3 .c 

### mg/ 

### da

### y