p110329.eng INITIAL REVIEW ENGINEERING REPORT PMN: 11-0329 Focus Ready Draft 5/19/2011 ENGINEER: Avcin \ JD \ EV PV (kg/yr): 47,000,000 YX

SUBMITTER: KiOR, Inc. USE: Blendstock for gasoline, diesel and other transportation fuels. P2 REC: CRSS: forward. P2 Claims: The substance can be substituted for petroleum-based fuels, is expected to reduce greenhouse gas emissions, and utilizes excess biomass feedstocks.

MSDS: Yes Label: No Gen Eqpt: Eye Protection: For general work, use a minimum of safety glasses with side shields. Where a spray, mist or heavy vapor may exist, use chemical safety goggles or a full-face respirator. Although face shields can be used to supplement the level of protection, they should never be used instead of primary eye protection.| Skin Protection: Wear impervious protective clothing, including boots, gloves apron or coveralls, as appropriate, to prevent skin contact. Respirator: Where vapors are present and engineering controls have been unsuccessful or not available, use NIOSH approved respiratory protection to mitigate potential respiratory exposures. In situations where the levels of the airborne contamination are unknown, use a supplied air respirator or a self-contained breathing apparatus (SCBA). Respirators should be used in accordance with OSHA requirements (29 CFR 1910.134). Health Effects: High vapor concentrations are irritating to the eyes and respiratory tract and may be a central nervous system (CNS) depressant (headaches, dizziness and anesthetic effects). In addition, brief contact with liquid may result in a minor irritation. This material may also cause irritation of the eyes upon contact with the liquid. TLV/PEL: none established

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Consumer Use: No SAT (concerns) (04/26/2011): Related Cases and Related Cases and Misc SAT Info:
Migration to groundwater: Moderate PBT rating: P1B1T1 . Health: 1-2 Dermal, Drinking Water, Inhalation Eco: 2 Water (All releases to water with a CC = 82 ppb) OCCUPATIONAL EXPOSURE RATING: 2-3C NOTES & KEY ASSUMPTIONS: Generated by the 06/07/2005 version of ChemSTEER.

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EXPOSURE-BASED REVIEW: Yes (2 criteria met) 1) # of workers exposed: 0 >1000? No 2) >100 workers with >10 mg/day inhalation exposure: Yes 3) (a) >100 workers w/1-10 mg/day inh. exp. & >100 days/yr: Yes (b) Routine Dermal Cont: >250 workers & >100 days/yr: Yes
INITIAL REVIEW ENGINEERING REPORT CBI: Yes PMN: 11-0329 Manufacturing: Production Plants Number of Sites/ Location:

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: 1.1E+2 kg/site-day over 365 days/yr

Page 5p110329.eng Water Output 2: 2.2E+2 kg/site-day over 365 days/yr

Water or Incineration Conservative: 1.3E+3 kg/site-day over 1 day/yr or 2.6E+3 kg/yr

Air Output 2: 1.3E+1 kg/site-day over 365 days/yr to: Air (per submission)

Air Output 1: 9.3E-3 kg/site-day over 365 days/yr Output 2: 1.3E-1 kg/site-day over 365 days/yr

Air Typical: 3.5E+1 kg/site-day over 365 days/yr Worst Case: 3.5E+1 kg/site-day over 365 days/yr

Incineration Output 2: 3.5E+1 kg/site-day over 365 days/yr or 2.5E+4 kg/yr

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Incineration Output 2: 1.5E+0 kg/site-day over 365 days/yr or 1.1E+3 kg/yr

RELEASE TOTAL 2.1E+5 kg/yr

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 32

Inhalation: Exposure to Vapor (Class II) Typical: 5.6E-2 mg/day over 365 days/yr Worst Case: 6.9E+0 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 6

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? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Exposure to Vapor (Class II) Typical: 1.7E+4 mg/day over 365 days/yr Worst Case: 5.0E+5 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 26

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? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Dermal: Exposure to Liquid at 100.00% concentration Page 7p110329.eng High End: 1.8E+3 mg/day over 365 days/yr Number of workers (all sites) with dermal exposure: 26

INITIAL REVIEW ENGINEERING REPORT PMN: 11-0329 Manufacturing: Number of Sites/ Location:

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. Air Output 2: 1.1E+0 kg/site-day over 365 days/yr

Air Typical: 6.0E-1 kg/site-day over 365 days/yr from 1 site Worst Case: 6.0E-1 kg/site-day over 365 days/yr

RELEASE TOTAL 8.5E+2 kg/yr - all sites

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 3

Inhalation: Exposure to Vapor (Class II) Typical: 2.9E+2 mg/day over 365 days/yr Worst Case: 8.6E+3 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 3

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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? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Dermal: Exposure to Liquid at 100.00% concentration High End: 1.8E+3 mg/day over 365 days/yr Number of workers (all sites) with dermal exposure: 3

INITIAL REVIEW ENGINEERING REPORT PMN: 11-0329 Processing: Blending Number of Sites/ Location:

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 Incineration or Landfill High End: 3.8E+1 kg/site-day over 124 days/yr or 9.4E+4 kg/yr

Water or Incineration or Landfill Conservative: 1.3E+2 kg/site-day over 365 days/yr or 9.4E+5 kg/yr

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Air Typical: 3.5E+0 kg/site-day over 365 days/yr Worst Case: 3.5E+0 kg/site-day over 365 days/yr

Air Typical: 3.5E+1 kg/site-day over 365 days/yr Worst Case: 3.5E+1 kg/site-day over 365 days/yr

RELEASE TOTAL 1.6E+6 kg/yr

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 60

Inhalation: Exposure to Vapor (Class II) Typical: 1.7E+3 mg/day over 365 days/yr Worst Case: 5.0E+4 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 60

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? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Exposure to Vapor (Class II) Typical: 1.7E+4 mg/day over 365 days/yr Worst Case: 5.0E+5 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 60

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? Yes OR Page 10p110329.eng b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Dermal: Exposure to Liquid at 100.00% concentration High End: 1.8E+3 mg/day over 365 days/yr Number of workers (all sites) with dermal exposure: 60

INITIAL REVIEW ENGINEERING REPORT PMN: 11-0329
Use: Number of Sites/ Location:

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 Incineration or Landfill High End: 3.8E+0 kg/site-day over 106 days/yr from or 9.4E+4 kg/yr

Air Typical: 3.0E+0 kg/site-day over 365 days/yr Worst Case: 3.0E+0 kg/site-day over 365 days/yr

Incineration Output 2: 5.5E+2 kg/site-day over 365 days/yr

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RELEASE TOTAL 4.8E+7 kg/yr

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 705

Inhalation: Exposure to Vapor (Class II) Typical: 1.4E+3 mg/day over 365 days/yr Worst Case: 4.3E+4 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure:

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? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Dermal: Exposure to Liquid at 10.00% concentration High End: 1.8E+2 mg/day over 365 days/yr Number of workers (all sites) with dermal exposure: 705

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