DOE/ORO/2327 Oak Ridge Reservation Annual Site Environmental ...

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Oak Ridge Reservation Sect. 311 of the CWA Storm Water Pollution Prevention Plan Subtitle I of RCRA (40 CFR 280) TDEC Rule 1200-1-15 Tennessee Drinking Water Regulations The Energy Policy Act (EPACT) of 2005 Title III of SARA Title VI CAA Toxic Chemical Release Reporting Annual Report WAI Contract Requirements Document and Regulatory Management Plan Waste Handling Plan (Bldg. 3206) WQPP 5-90 Oak Ridge National Laboratory
6. ORR Environmental Monitoring Program In addition to environmental monitoring conducted at the three major Oak Ridge DOE installations, reservation-wide surveillance monitoring is performed to measure radiological and nonradiological parameters directly in environmental media adjacent to the facilities. Data from the ORR surveillance programs are analyzed to assess the environmental impact of DOE operations on the entire reservation and the surrounding area. Dose assessment information based on data from ORR surveillance programs is given in Chapter 7. 6.1 Meteorological Monitoring Eight meteorological towers provide data on meteorological conditions and on the transport and diffusion qualities of the atmosphere on the ORR. Data collected at the towers are used in routine dispersion modeling to predict impacts from facility operations and as input to emergency-response atmospheric models, which would be used in the event of accidental releases from a facility. Data from the towers are also used to support various research and engineering projects. 6.1.1 Description The eight meteorological towers on the ORR are described in Table 6.1 and depicted in Fig. 6.1. The “MT” name format for the meteorological towers is used in this document; however, other commonly used names for the sites are provided in Table 6.1. Meteorological data are collected at different altitudes (2, 10, 15, 30, 33, 60, and 100 m above the ground) to assess the vertical structure of the atmosphere, particularly with respect to wind shear and stability. Stable boundary layers and significant wind shear zones (associated with the local ridge-and-valley terrain as well as the Great Valley; see Appendix C) can significantly affect the movement of a plume after a facility release (Bowen et al. 2000). Data are collected at the 10-m level at all towers except Towers MT3 and MT9, where data are collected at 15 and 33 m. Additionally, at selected towers, data are collected at the 30-, 33-, 60-, and 100-m levels. At each measurement level, temperature, wind speed, and wind direction are measured. Data needed to determine atmospheric stability (a measure of vertical mixing properties of the atmosphere) are measured at most towers. Barometric pressure is measured at one or more of the towers at each facility (MT1, MT2, MT7, and MT9). Precipitation is measured at MT6 and MT9 at the Y-12 Complex, at MT1 and MT7 at the East Tennessee Technology Park (ETTP), and at MT2 and MT4 (as of 2010) at Oak Ridge National Laboratory (ORNL). Solar radiation is measured at MT6 and MT9 at the Y-12 Complex, at MT1 and MT7 at the ETTP, and at MT2 at ORNL. Data are collected at 1-, 15-, and 60- min intervals. General quarterly calibrations of the instruments are managed by UT-Battelle and B&W Y-12. Data are collected in real time at 15-min and hourly intervals for emergency-response purposes, such as for input to dispersion models. Data from the eight ORR meteorological towers are distributed to dispersion models at the ORNL and Y-12 Emergency Operations Centers. Annual dose estimates are calculated using the archived hourly data. Data quality is checked continuously against predetermined data constraints, and out-of-range parameters are marked invalid and are excluded from compliance modeling. Quality assurance records of data problems and errors are routinely kept for all eight tower sites. 6.1.2 Meteorological Impacts on Modeling Results Prevailing winds are generally up-valley from the southwest and west-southwest or down-valley from the northeast and east-northeast. This pattern is the result of the channeling effect of the ridges flanking the ORR sites. Winds in the valleys tend to follow the ridge axes, with limited cross-ridge flow within local valley bottoms. These conditions are dominant over most of the ORR, with the exception of the ETTP, which is located in a relatively open valley bottom (resulting in slightly more varied flow). ORR Environmental Monitoring Program 6-1
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Oak Ridge Reservation committed dos
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Oak Ridge Reservation hectare — A
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Oak Ridge Reservation quality facto
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Oak Ridge Reservation total dissolv
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Table D.1. Reference standards for
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Appendix E. National Pollutant Disc
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Appendix F. Radiation This appendix
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F.2.2 Non-ionizing Radiation Annual
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F.5.10 Dose from Consumer Products
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Appendix G. Chemicals This appendix
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Table G.1. Chemical reference doses
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BW = body weight (70 kg), and Annua
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