silo 3 - U.S. Department of Energy

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Silos Project Environmental Monitoring Plan
40000-PL-0010
August 29, 2002
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To better monitor radon levels in the K-65 area, five radon monitoring locations were added
to the existing IEMP radon network in 2000. The monitors currently provide additional
monitoring of radon levels in the vicinity of the silos and will continue to do so during the Silo
3 and AWR projects and subsequent operations for the Silos 1 and 2 material. The locations
and designations for the monitors are:
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North of Silo 2 at the K-65 exclusion fence, designated KNO.
South of Silo 1 near the new south camera tower, designated KSO.
East of Silo 4 and in the prevailing wind direction from Silo 3, designated LP2.
East of the silo project construction area near Trailer #117, designated T117.
An additional station was selected on the FEMP's west fenceline-to supplement the
established IEMP monitoring network. The monitor (PR-1) is co-located with the WPTH-2
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air particulafe monitor, on the western perimeter of the facility.
The detail of the OU4 radon monitoring locations is shown on Dwg. 94X-5500-SK-5527
(Attachment A). The map of the entire IEMP radon monitoring network is shown Attachment
B. In order to accommodate construction activities, it may be necessary to re-locate radon
monitors. Changes in monitoring locations will be documented and reviewed through the
Design Change Notice (DCN) process.
Real-time data from selected fenceline and silos area monitors is available via a secure Internet
address (the IEMP Data Information Site). The data will include the date and time of the most
recent transmission, location, and latest radon concentration. This data is sent from the
monitoring instrumentation without review or validation. Data review and validation will be
conducted in a manner consistent with the current methods used under the IEMP radon
monitoring program. Monthly radon summary data will also be posted to the IEMP Data
Information Site after quarterly data quality reviews are completed.
3.1.4 Project-Specific Air Particulate Monitoring Program
The IEMP air particulate monitoring program, which is based on air monitors located at the
FEMP's perimeter fenceline, provides early warning feedback regarding the cumulative sitewide
effectiveness of all remediation project emission controls. The OU4 project-specific air
particulate monitoring program will provide data that confirms the performance of the projects'
emissions controls. In addition to providing confirmatory data, the monitoring program will also
provide data to quantify the nature and extent of releases from the projects in the event of an
upset condition. The program consists of four high-volume particulate air samplers that are
co-located with the radon monitors at the Bio-surge lagoon, LP2, T117, and KNW-A locations
shown on Attachment A. These samplers maintain a consistent air sample flow rate between
40 and 50 cubic feet per minute through an 8 by 10-inch filter. In order to accommodate
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