silo 3 - U.S. Department of Energy

2.1.2 Emission Control During Retrieval, Transfer, and Packaging
~~ 40430-Pt-0005,Rev;
Silo 3 Environmental Control Plan
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Jacobs Project Number 35H19605
September 23, 2003
Particulate and radon emissions from retrieval, transfer, and packaging operations are
collected by the PVS, pneumatic retrieval system, and HVAC systems, which are
described in the Process Description (Doc. No. 40430-RP-0003). The expected emissions
from these operations and the resulting off-site impact are summarized in Section 2.2 of
this document.
The total design airflow for the PVS is approximately 5,500 standard cubic ft per minute
(scfm). Gases from the following sources are transferred to the PVS:
Silo 3,
0 Vacuum Wand Enclosures (ENC-10-5020 A-F),
0 Retrieval Bin Register (EAR-1 1-50521,
0 Excavator Room Register (EAR-1 1-50531,
Inclined Conveyor (DFC-11-50561, and
Packaging Stations A & B Exhaust Registers A & B (EAR-25-5290A&B).
Each of these sources are described in Section 4.2 of the Process Description (Doc. No.
40430-RP-0003).
2.1.3 Ambient Monitoring
As detailed in Section 3.1 of the Fluor Fernald's Silos Project Environmental Monitoring
Plan, monitoring and reporting of emissions from the Silo 3 Project will be accomplished
through a combination ambient radon and particulate monitoring and project-specific stack
monitoring.
2.2 ESTIMATED POINT SOURCE AIR EMISSION DATA
The Stack Release Considerations for the Silo 3 Project calculation (Doc. No. 40430-CA-
0003) provides estimates of the anticipated air emissions from operation of the Silo 3
Project. As described in the preceding sections, the emissions from various sources within
the Silo 3 facilities are collected and discharged through the monitored exhaust stack after
filtration. Table 2-1 summarizes expected emissions from the Silo 3 Exhaust Stack (STK-
19-5209) for both Phase I Pneumatic Extraction and Phase II, Mechanical Extraction. The
Silo 3 exhaust stack is equipped with an air particulate monitor and a continuous radon
monitor.
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