ML093420376

Email from J. White to D. Roberts, Oc Annual Ass. Mtg

ML093420376
Person / Time
Site:	Oyster Creek
Issue date:	05/15/2009
From:	Jason White NRC Region 1
To:	Darrell Roberts NRC Region 1
References
FOIA/PA-2009-0214
Download: ML093420376 (3)

Text

6JR From: Ronald Bellamy Sent: Tuesday, May 12, 2009 2:01 PM To: Darrell Roberts; David Lew Cc: Marc Dapas; Richard Conte; John White; James Trapp

Subject:

RE: Oyster Creek Annual Ass. Mtg.

We are aligned and I will discuss with the site again Thursday. The meeting notice will use the general terms, following similar notices. Thx Ron From: Darrell Roberts Sent-. Tuesday, May 12, 2009 12:10 PM To: Ronald Bellamy; David Lew Cc: Marc Dapas; Richard Conte; John White; James Trapp

Subject:

Oyster Creek Annual Ass. Mtg.

Ron, (b)(5)

I've cc'd the branch chiefs in DRS whol know are attending.

thx, DJR 2

N6mitz, Ronald From: John White Sent: Friday, May 15, 2009 1:34 PM To: Darrell Roberts Cc: Ronald Nlmitz; Ronald Bellamy; Harold Gray; John Richmond; Nancy McNamara

Subject:

RE: Oyster Creek Annual Ass. Mtg.

Attachments: Dose Perspective Slide 2ocrevl.ppt From: Darrell Roberts Sent: Friday, May 15, 2009 12:33 PM To: Ronald Bellamy; Nancy McNamara Cc: David Lew; Richard Conte; John White; James Trapp; Diane Screnci; Nell Sheehan; Doug T"rft

Subject:

RE: Oyster Creek Annual Ass. Mtg.

Folks, (b)(5)

In onmatiwin'this record As deleted' int,accordance with the Frdomoftnf~rmration exemptios_, .** :i Ac Frim I -do P These may be questions we should be prepared to address at our pre-brief next week w/ Sam.

I

Radiation Dose Perspective: Liquid Releases EstimatedBackgroundExposure: 360 mrem/yr (NCRP 94)

The NRC and EPA have established three layers of radiation protection limits to protect the public against potential health risks Background Radiation vs. NRC from exposure to liquid radioactive releases (i.e., effluents that Radiation Dose Limits contain byproduct radioactive material, including tritium) from nuclear power plants. These limits apply to normal releases, e.g.,

planned discharges; and abnormal releases, e.g., spills and leaks.

350 1I~

El Background La*eLr1: Liquid Effluent Limit (10 CFR 50 App I) - 3 mrem/yr, total body & 10 mrem/yr, organ 300-V The NRC selected the limits because they are a fraction of the natural background radiation dose, a fraction of the annual public dose limit, and an attainable objective 250+'

• NRC Public that nuclear power plants could meet.

Dose Limit Layer 2: Public Dose Limit (40 CFR 190) - 25 mrem/yr Standard 200-4' The EPA developed a radiation dose standard of 25 mrem/yr to the whole body, 75 mrem to the thyroid, and 25 mrem to any other organ of an individual member of. IMEPA the public. The NRC incorporated these standards into its regulations (10 CFR 150-4 Incorporated 20.1301(e)), and all nuclear power plants must now meet these requirements.

Public Dose Specific to facilities involved in generatingnuclearpower.

1004' Limit Layer*3: Public Dose Limit (10 CFR 20.1301(a))- 100 mrem/yr El Liquid Effluent The NRC adopted the dose limit from the recommendations of the International Limit Commission on Radiological Protection (ICRP). The basis of the ICRP 50T]

recommendation is that a lifetime of exposure at this limit would result in a very small health risk and is roughly equivalent to background radiation from natural sources (excluding radon). Applies to allfacilities(academic,industrial,medical, mre m/yr etc) that use radioactive material.

EPA Drinking Water Standards-Tritium (40 CFR 141.16)

Maximum contaminant level of 20,000 pCi/L for tritium (H-3) (based on a daily consumption of 2L, annually). This level is assumed to yield a dose of 4 mrem/yr.