United States Nuclear Regulatory Commission - Protecting People and the Environment

U.S. Nuclear Regulatory Commission

Safety Evaluation of the Proposed Yankee Atomic Power Company's Modification of their Technical Specifications Relating to High Radiation Areas.

HPPOS-015 PDR-9111210114

Title: Safety Evaluation of the Proposed Yankee Atomic

Power Company's Modification of their Technical

Specifications Relating to High Radiation Areas.

See the memorandum from D. G. Eisenhut to K. R. Goller,

dated March 16, 1977. Enclosures with the document provided

the basis for revised Technical Specifications relevant to

entry into high radiation areas. These allow entry

controlled by RWP and radiation monitoring, alarming

dosimeter, or health physics qualified individual. (It

should be noted that new Technical Specifications clarify

the requirements for high radiation areas in containment.)

The health physics position was written in the context of

10 CFR 20.203, but it also applies to "new" 10 CFR 10.1601.

Enclosure 2 states that in lieu of the "control device" or

alarm signal required by paragraph 10 CFR 20.203 (c) (2)

[or 10 CFR 20.1601 (a)], each high radiation area in which

the intensity of radiation is between 100 and 1000

mrem/hour must be barricaded and conspicuously posted as a

high radiation area and entrance controlled by requiring

the issuance of a Radiation Work Permit (RWP). Any

individual or group of individuals permitted to enter these

areas must be provided with one or more of the following:

1. A radiation monitoring device that continuously

indicates the radiation dose rate in the area.

2. A radiation monitoring device that continuously

integrates the radiation dose rate in the area and alarms

when a preset integrated dose is received. Entry into high

radiation areas with this type of monitoring device may be

made only after the dose rate levels in the area have been

established and personnel have been made knowledgeable of

them.

3. A health physics qualified individual (i.e.,

qualified in radiation protection procedures) with a

radiation dose rate monitoring device and who is

responsible for providing positive control over the

activities within the area and performs periodic radiation

surveillance at the frequency specified in the RWP and

established by the Plant Health Physicist.

Health physics personnel are exempt from RWP issuance

requirements during the performance of their assigned

radiation protection duties, providing they are following

plant radiation protection procedures for entry into high

radiation areas.

The above procedures also apply to each high radiation area

in which the intensity of radiation is greater than 1000

mrem/hr. To prevent unauthorized entry into high radiation

areas, locked doors with the keys maintained under the

administrative control of the on-duty shift supervisor

and/or the Plant Health Physicist must be provided.

Individuals are considered qualified in radiation

protection procedures when they are certified as capable of

successfully accomplishing the following activities as

required by federal regulations, license conditions, and

facility procedures pertaining to radiation protection:

1. Conducting and evaluating special and routine

radiation, contamination and airborne radioactivity surveys.

2. Establishing protective barriers and posting

appropriate radiological signs.

3. Establishing a means of limiting exposure rates and

accumulated radiation doses, including the use of

protective clothing and respiratory protection equipment.

4. Performing operability checks of radiation monitors

and survey meters.

5. Recommending appropriate immediate actions in the

event of a radiological problem, and performing necessary

activities until the arrival of health physics personnel.

6. Conducting other routine radiological duties as

required on backshifts or weekends.

Regulatory references: 10 CFR 20.203, 10 CFR 20.1601,

Technical Specifications

Subject codes: 1.7, 4.1, 7.1

Applicability: Reactors

Page Last Reviewed/Updated Thursday, March 29, 2012