Document: NUREG-0800
Document ID: 48fb37ec-8e3e-4c2c-96c3-daa5e7da62f9
Document Type: srp
Title: of the applicant's SAR is reviewed to identify any missing data,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340557.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.12
CFR Part: 
CFR Title: 

Content:
ater level is subsequently exceeded. (h) State the maximum groundwater level the plant structures can tolerate under various significant loading conditions in the absence of the underdrain system. (i) Provide a description of the proposed groundwater level monitoring programs for dewatering during plant construction and for permanent dewatering during plant operation. Monitoring information requested includes (1). the general arrangement in plan and profile with approxi- mate elevation of piezometers and observation wells to be installed, (2) intended zone(s) of placement, (3) type(s) of piezometer (closed or open system), (4) screens and filter gradation descriptions, (5) drawings showing typical installations showing limits of filter and seals, (6) observation schedules (initial and time intervals .for sub- sequent readings), (7) plans for evaluation of recorded data, and (8) plans for alarm devices to assure sufficient time for initiation of corrective action. Provide a commitment to base the final design of the operational monitoring program on data gathered during the construction monitoring program (if construction experience shows the assumed operational program bases to be nonconservative or impractical). Changes to the operational program are to be documented in the FSAR. (j) Provide information regarding the.outlet flow monitoring program. The information required includes (1) the general location and type of flow measurement device(s), and (2) the observation plan and alarm procedure to identify unanticipated high or low flow in the system and the condition of the effluent. (k) For OL reviews, but only if not previously reviewed by the staff, provide (1) substantiation of assumed design bases using information gathered during dewatering for construction excavation, and (2) all other details of the dewatering system design that implement design bases established during the CP review. (1) For OL reviews, provide a Technical Specification for periods when