Document: NUREG-1555
Document ID: 0cf173cf-50b9-425f-94a2-99810a0f33d4
Document Type: esrp
Title: THERMAL MONITORING
Source: NUREG-1555
Source URL: https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1555/initial/
Revision Date: 2007-10
Chapter: 6
Section ID: 6.1
CFR Part: 
CFR Title: 

Content:
h description of the thermal monitoring is essential for the evaluation of potential impacts to the environment that may result from plant construction and operation. Adequate monitoring (baseline and operational) is generally a prerequisite for obtaining or renewing an NPDES permit. NUREG-1555 6.1-4 October 1999 III. REVIEW PROCEDURES The reviewer should consider the following separate but related aspects of the applicant’s thermal monitoring program: ` Preapplication Monitoring. The program of field monitoring and data collection is used to support the applicant’s thermal descriptions. ` Preoperational Monitoring. The program of thermal monitoring establishes a baseline for identifying and assessing environmental impacts resulting from plant operation. ` Operational Monitoring. The program of thermal monitoring establishes changes in water temperature resulting from plant operation. Each of these aspects is discussed in greater detail in the sections that follow. Preapplication Monitoring Information from the applicant’s preapplication monitoring program is used to aid in the description of the baseline water temperature. Generally, data are needed on a seasonal basis and should be sufficient to characterize seasonal variations throughout an annual cycle. Long-term trends may be established using regional data; the reviewer may rely on input from other sources (e.g., Federal, State, regional, local, or Native American tribal agencies) for these data. The reviewer should analyze the available data to determine that they are adequate to support the environmental descriptions of ESRP 2.3.1 and the impact analyses of ESRPs 5.2 and 5.3.2. The following factors should be considered in the analysis: ` the location and number of monitoring stations as required to consider the following factors: - bathymetric characteristics in the vicinity of the site - type of cooling system employed and its probable operating modes - transient hydrological parameters in the