ML20086T096

Proposed Tech Spec,Changing Monitoring Program on Stability of West Embankment & Effects on Intake Structure

ML20086T096
Person / Time
Site:	Summer
Issue date:	02/29/1984
From:	SOUTH CAROLINA ELECTRIC & GAS CO.
To:
Shared Package
ML20086T094	List: ML20086T092 ML20086T096
References
NUDOCS 8403060130
Download: ML20086T096 (1)

Text

---

7_.

v

- ATTACHMENT -

(5) Stability of the West Embankment and its Effects on the Intake Structure (Section 2.5.4, SSER 3)

SCE&G shall conduct the monitoring program described in Section 2.5.4.10.6.2 of the Final Safety Analysis Report as amended through Amendment No. 33, to specifically include the following:

a. At the vicinity of the pumphouse and intake struc-ture, four (4) settlement points capable of monitoring both horizontal and vertical movements shall be established to monitor the embankment movements.

b. The submerged slope profile of the west embankment over the intake structure shall be established and monitored to detect any unusual movements that may affect the intake structure.

c. The schedule and the reporting requirements of the above inspection shall be in accordance with the recommendations stated in Regulatory Guide 1.127.

d. The condition of the intake structure shall be monitored to detect new cracks and changes to the old grouted or ungrouted cracks. Observed changes (length or width) in existing cracks and any new cracks shall be reported by SCE&G to the NRC Staff.

The maximum inspection interval for this monitoring of the intake structure is five (5) years.

e. The condition of the intake structure shall also be monitored as specified~in-(d.) above following any earthquake during which the plant seismic instrumentation indicates that the operating basis earthquake has been exceeded.

8403060130 840229 PDR ADOCK 05000395 P PDR

. _ _ _ _ . _ . _ _ _ . _ . . _ _ -