Document: NUREG-1555
Document ID: 7624f829-e560-45db-bb97-cc869890a892
Document Type: esrp
Title: HYDROLOGICAL 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: 6.3
CFR Part: 
CFR Title: 

Content:
yses of ESRPs 4.2, 5.2, 5.3.1, and 5.3.2. The following factors should be considered in the analysis: ` the location and number of monitoring stations (and wells) as required to consider the following factors: - bathymetric characteristics of surface waters in the site vicinity - soil and groundwater system characteristics in the site vicinity - the type of cooling system employed and its operating modes - type of sanitary and chemical waste retention method - transient hydrological and meteorological parameters in the site vicinity. ` the sampling frequency and times to ensure that important temporal variations (e.g., tidal variations and intense rainfall) are adequately monitored ` the duration of monitoring programs ` the sediment transport characteristics. Construction Monitoring Construction monitoring will be required when specific adverse impacts are predicted (e.g., impact due to dewatering, increased turbidity). The reviewer should determine these predicted impacts from the ESRP 4.2 and 4.3 reviews and should analyze the proposed monitoring programs associated with these predicted impacts. Preoperational Monitoring The preoperational monitoring program is designed to provide the database necessary for evaluating any hydrologic changes arising from operation of the proposed plant. The applicant’s preoperational monitoring plan should be analyzed to determine if adequate baseline data will be available to assess the following: ` the alteration of surface-water flow fields in the site vicinity October 1999 6.3-7 NUREG-1555 ` alteration of groundwater flow (e.g., saltwater intrusion) ` impact of sanitary and chemical waste-retention methods on groundwater quality ` alteration of sediment transport ` alteration of floodplains or wetlands. Operational Monitoring The operational monitoring program is designed to establish the impacts of operation of the plant and to detect any unexpected impacts arising from plant operation. Operational monitoring may be