INITIAL REVIEW ENGINEERING REPORT PMN: 07-0453 Focus Ready Draft 6/11/2007

ENGINEER: El-Zoobi \ KPR PV (kg/yr):

SUBMITTER:

USE:

OTHER USES:

MSDS: Label: No

Gen Eqpt: Respirator:
Health Effects: TLV/PEL:

CRSS (05/31/2007): Chemical Name: S-H20: 1.5 g/L @
VP: 1.0E-6 torr @
MW: 266.27 %<500 %<1000 Physical State and Misc CRSS Info: Neat: Solid Mfg: NK-Import Proc/Form: Paste, PMN material formulation End Use: Destroyed. Submitted data: hygroscopic solid, MP = 77 °C, soluble in water. An IR spectrum was submitted. Estimated data: EPI (input MP = 77 °C): log P = 1.69, BP = 440 °C, VP = 2.8e-7 torr, WS = 1516 mg/L.

Consumer Use: No

SAT (concerns) (06/06/2007): Migration to groundwater: Slow PBT rating: P1B1T2 Health: 1-2 Dermal, Drinking Water, Inhalation, ingestion Eco: 3 Water (All releases to surface water; cc = 20 ppb)

OCCUPATIONAL EXPOSURE RATING: 1-2C

NOTES & KEY ASSUMPTIONS: Generated by the 06/07/2005 version of ChemSTEER.

POLLUTION PREVENTION CONSIDERATIONS: None.

EXPOSURE-BASED REVIEW: NoINITIAL REVIEW ENGINEERING REPORT CBI: No PMN: 07-0453

PROC:

Number of Sites/ Location: 4 unknown site(s) Days/yr: 20 Basis:

Process Description:

ENVIRONMENTAL RELEASES ESTIMATE SUMMARY IRER Note: The daily releases listed for any source below may coincide with daily releases from the other sources to the same medium.

Water Output 2: 3.0E-2 kg/site-day over 20 days/yr from 4 sites

to: from: basis:

Water or Air or Incineration or Landfill Output 2: 6.2E-3 kg/site-day over 20 days/yr from 4 sites or 5.0E-1 kg/yr to: uncertain
from:

Water or Air or Incineration or Landfill Output 2: 6.2E-3 kg/site-day over 20 days/yr from 4 sites or 5.0E-1 kg/yr to: uncertain
from:

Water or Incineration or Landfill Output 2: 1.2E-2 kg/site-day over 20 days/yr from 4 sites or 10.0E-1 kg/yr to: uncertain
from:

Water or Incineration or Landfill Output 2: 1.2E-2 kg/site-day over 20 days/yr from 4 sites or 10.0E-1 kg/yr to: uncertain
from:

RELEASE TOTAL 5.4E+0 kg/yr - all sites

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 4 Basis: Submission estimates 10 workers/site. CEB conservatively assumes all workers exposed to the PMN

Inhalation: Negligible exposure to vapors expected (VP <0.001 torr); however, exposure to dust is possible.

Exposure to Particulate (Class I) Typical: 6.0E-2 mg/day over 20 days/yrWorst Case: 2.0E-1 mg/day over 20 days/yr Number of workers (all sites) with inhalation exposure: 4 Basis: NOTE: The respirator class is: I. Particulate (including solid or liquid droplets).

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit, or data not specific to industry): Yes 2)a) Exposure level > 1 mg/day? No

OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? No

Dermal:

Exposure to Solid at % concentration High End: 3.1E+3 mg/day over 20 days/yr Number of workers (all sites) with dermal exposure: 4 Basis:INITIAL REVIEW ENGINEERING REPORT CBI: No PMN: 07-0453

USE: Number of Sites/ Location: 12 unknown site(s) Days/yr: 250 Basis:

Process Description:

ENVIRONMENTAL RELEASES ESTIMATE SUMMARY IRER Note: The daily releases listed for any source below may coincide with daily releases from the other sources to the same medium.

Water or Air or Incineration or Landfill Output 2: 1.6E-4 kg/site-day over 250 days/yr from 12 sites or 4.9E-1 kg/yr to: uncertain
from:

Water or Incineration or Landfill Output 2: 3.3E-4 kg/site-day over 250 days/yr from 12 sites or 9.9E-1 kg/yr to: uncertain
from:

Water or Incineration or Landfill Output 2: 3.3E-4 kg/site-day over 250 days/yr from 12 sites or 9.9E-1 kg/yr to: uncertain
from:

RELEASE TOTAL 2.5E+0 kg/yr - all sites

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 180 Basis:

Inhalation:

Exposure to Particulate (Class I) Typical: 1.6E-3 mg/day over 250 days/yr Worst Case: 5.3E-3 mg/day over 250 days/yr Number of workers (all sites) with inhalation exposure: 180 Basis: NOTE: The respirator class is: I. Particulate (including solid or liquid droplets).

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit, or data not specific to industry): Yes 2)a) Exposure level > 1 mg/day? No

OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? No

Dermal:Exposure to Solid at %concentration High End: 3.1E+1 mg/day over 250 days/yr Number of workers (all sites) with dermal exposure: 180 Basis: