ML16167A165

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Email - Letter to Diablo Canyon Early Warning Systems
ML16167A165
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 06/08/2016
From: Graf T
Pacific Gas & Electric Co
To: Frederick Sullivan
Division of Security Operations
Scot Sullivan 287.3624
References
Download: ML16167A165 (1)


Text

From: Graf, Timothy [1]

Sent: Wednesday, June 08, 2016 10:46 AM To: Sullivan, Frederick <Frederick.Sullivan@nrc.gov>

Subject:

[External_Sender] Letter to Diablo Canyon re: Early Warning Systems

Dear Mr. Sullivan,

Diablo Canyon (DCPP) received the attach letter entitled, The U.S. Nuclear Regulatory Commission Inspection Approach Related to Industry Implementation of Early Warning Systems. We understand that the letter is primarily about requirements to credit voluntary early warning systems (EWS),

however, it is not clear on EWS that is required to implement the protective strategy.

At DCPP, we rely on our EWS to implement our strategy (i.e. adversary timelines begin with detection prior to the protected area intrusion detection system).

The second paragraph describes the requirements for non-voluntary EWS such as DCPPs, however, it only discusses barriers described in 10 CFR 73.55(e). The next paragraph describes the requirements for voluntary EWS and must meet the requirements of both 10 CFR 73.55(e) and § 73.55(i).

Our question is if the strategy requires early detection, does this also have to be described in the Physical Security Plan and does the detection system need to meet the requirements of 10 CFR 73.55(i)?

Thank you, Tim Timothy Graf Senior Security Compliance Analyst Diablo Canyon Power Plant Company Phone: 691-3983 From Offsite: (805) 545-3983 Cell: (805) 748-7492