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An NRC-identified Green NCV of TS 6.8.4.c, … An NRC-identified Green NCV of TS 6.8.4.c, Secondary Water Chemistry, was identified for the licensees failure to follow secondary water chemistry control requirements in accordance with procedure CSD-CP-HNP-0002, Harris Secondary Water Chemistry Strategic Plan. . Specifically, the licensee remained at 100% power for approximately 10 hours after entering secondary water chemistry Action Level 3 due to elevated chlorine and sulfates chemical impurity concentrations, which was contrary to the procedure requirements to downpower the unit to below 5% power as quickly as safe plant operation permits. This unit downpower delay allowed additional time for the chemical impurities to adversely affect the steam generators. to adversely affect the steam generators. +

Discovered date

23:59:59, 30 June 2018 +

Docket

05000400 +

Event date

23:59:59, 30 June 2018 +

Finding integer

5 +

Finding type

Non-cited violation +

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Hours

1.157407e-4 d (0.00278 hours, 1.653439e-5 weeks, 3.805e-6 months) +

WP.4 +

IP 71152, Problem Identification and Resolution (PI&R) +

Inspection report

IR 05000400/2018002 +

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22:35:36, 10 September 2018 +