Critical evaluation of the nonradiological environmental technical specifications. Volume 2. Surry Power Plants, Units 1 and 2
A comprehensive study of the data collected as part of the environmental Technical Specifications program for Units 1 and 2 of the Surry Nuclear Power Plant was carried out for the Office of Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of the hydrothermal and ecological monitoring data collected from 1973 through 1975. The hydrothermal analysis includes a discussion of models used in plume predictions prior to plant operation and an evaluation of the present hydrothermal monitoring program. The two primary methods used for temperature monitoring employ a fixed thermographs network and boat measurements. Review of data indicates that both the application and formulation of the hydrothermal monitoring program are inadequate to fully characterize the operation of the plant and the behavior of the thermal plume. Furthermore, there are no existing data that can be used to adequately verify or disprove the validity of the various Surry plume predictions. The ecological analysis includes validation of impacts predicted in the Final Environmental Statement using the operational monitoring data. Phytoplankton cell concentrations, chlorophyll a, and carbon-14 measurements were used to monitor changes in the primary producers. Densities of consumers (i.e., zooplankton, benthos, and fish) were sed to monitor changes in the primary producers. Models based on operating data were constructed to determine whether changes were occurring at each trophic level. Analysis of the monitoring data suggests that the thermal discharges at Surry are having a negative effect on the phytoplankton and zooplankton but are enhancing the benthic and nekton populations in the discharge area.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- W-7405-ENG-26; NRC-INA-40-550-75
- OSTI ID:
- 7317427
- Report Number(s):
- ORNL/NUREG/TM-70; TRN: 77-009328
- Country of Publication:
- United States
- Language:
- English
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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
SURRY-1 REACTOR
ENVIRONMENTAL EFFECTS
SURRY-2 REACTOR
SURRY-3 REACTOR
SURRY-4 REACTOR
THERMAL EFFLUENTS
AQUATIC ORGANISMS
DATA ACQUISITION
DATA ANALYSIS
FORECASTING
MATHEMATICAL MODELS
MONITORING
PLANKTON
PLUMES
TEMPERATURE MONITORING
US NRC
ENRICHED URANIUM REACTORS
NATIONAL ORGANIZATIONS
POWER REACTORS
PWR TYPE REACTORS
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THERMAL REACTORS
US ORGANIZATIONS
WATER COOLED REACTORS
WATER MODERATED REACTORS
520400* - Environment
Aquatic- Thermal Effluents Monitoring & Transport- (-1989)
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled