Final Draft

INITIAL REVIEW ENGINEERING REPORT CBI: No

PMN: 02-996 ENGINEER: Hall/TMB PV (kg/yr): ,500,000 SUBMITTER: E.I. duPont de Nemours and Company

USE:

OTHER USES:

MSDS Label: No

General Eqp.:

Respirator:

Health Effects:

TLV/PEL (PMN or raw materials):

CRSS: Chemical Category:

VP: 2.94E-05 torr @25 E C
S-H 2 O: 17.5 g/L
MW: 229.41 Phys State: Neat: liquid; Mfg: liquid; Proc/Form: NA;
End Use:

Consumer Use: No

SAT (concerns):
Ground Water: slow Health: 2 inhalation, dermal; XB: testing desired Eco: 2 all releases to water; XB: testing desired
PBT: P1B1T2
OCCUPATIONAL EXPOSURE RATING: 2-3INITIAL REVIEW ENGINEERING REPORT Page # 2 CBI: No

PMN: 02-996

ASSUMPTIONS: Health exposure based testing desired, therefore
PMN substance has been evaluated for inhalation, dermal and ingestion exposure potentials. Key assumption:

The submitter was contacted to provide additional information on this case, see contact report.

POLLUTION PREVENTION CONSIDERATIONS: None listed

EXPOSURE-BASED REVIEW Yes (4 criteria met) 1) # of workers exposed (>1,000?): 2,559 Y 2) >100 workers with >10 mg/day inhalation exposure : Y 3) >100 workers w/1-10 mg/day inh. exp. & >100 days/yr: Y 4) Routine Dermal Cont: >250 workers & >100 days/yr: YINITIAL REVIEW ENGINEERING REPORT Page # 3 CBI: No

PMN: 996

MFG:

Site/Location: 1 toll site (Chemicals Incorporated, Baytown, TX 77521 or Centauri Technologies LP, Pasadena, TX 77507) Days/yr: 125 or 218

Process Description:

ENVIRONMENTAL RELEASES (Eqpt. cleaning, container residue, etc.):

WATER: none expected

AIR: negligible (<23.26 kg/site-yr)
from: basis:

INCINERATION: 420,000 kg/yr OR 670,000 kg/yr
from: basis:INITIAL REVIEW ENGINEERING REPORT Page # 4 CBI: No

PMN: 02-995 & 996

MFG: (cont)

LANDFILL: none expected

OCCUPATIONAL EXPOSURE Tot. # of workers: 42 (submission for both operations) Days/yr: 218 (maximum, submitter)

Inhalation: negligible (VP <0.001 torr, liquid)

Dermal: contact with liquids: up to 1,800 mg/day 97.5-99.9% concentration Basis: CEB estimate for routine contact, two handsINITIAL REVIEW ENGINEERING REPORT Page # 5 CBI: No

PMN: 02-996

USE 1: 996

Site/Location: 25 sites Days/yr: 250 (CEB estimate)

Process Description:

ENVIRONMENTAL RELEASES (Eqpt. cleaning, container residue, etc.):

WATER: 7 kg/site-day over 250 Days/year
from:

to: basis:

OR INCINERATION: <<200,000 kg/yr
from:

OR LANDFILL: 41,000 kg/yr
from:

AIR: negligible (VP < 0.01 torr, liquid)

OCCUPATIONAL EXPOSURE Tot. # of workers: 75 (CEB estimate of 3 per site) Days/yr: 250

Inhalation: negligible (VP <0.001 torr, liquid)

Dermal: contact with liquids: up to 1,800 mg/day 97.5-99.9% concentration Basis:INITIAL REVIEW ENGINEERING REPORT Page # 6 CBI: No

PMN: 02-996

USE 2:

Site/Location: 30 sites Basis: (CEB estimate)

Process Description:

ENVIRONMENTAL RELEASES (Eqpt. cleaning, container residue, etc.):

WATER: 6 kg/site-day over 10 Days/year
from:

to: basis:

AIR: 0.6 kg/site-day over 250 days/yr
from: basis:

INCINERATION: Not expected basis:

LANDFILL: 41,000 kg/yr
from: basis:INITIAL REVIEW ENGINEERING REPORT Page # 7 CBI: No

PMN: 02-996

USE 2: (cont)

OCCUPATIONAL EXPOSURE Tot. # of workers: < 2,400 Days/yr: 250

Inhalation: mist (class I respirator) <1 to 48 mg/day over 250 Days/yr Number of workers with inhalation exposure: < 2,400 Basis: Note: The respirator class is: I. Particulate (including solids or liquid droplets).

Dermal: contact with liquids: up to 1,800 mg/day 97.5-99.9% concentration Basis: CEB estimate for routine contact, two hands

contact with liquids: up to 1,700 mg/day 5-20% concentration Basis: CEB estimate for routine immersion, two handsCONTACT REPORT (Telephone Log, page 1 of 2)

PMN: 02-995 & 996

Call By: Timothy Brenza (Eastern Research Group for EPA/OPPT/CEB)

Call To: Kathleen E. O = Keefe

Submitter: E. I. duPont de Nemours and Company

Date: 9/25/02

Time: 2:00 pm