Radiological Surveys and Data Trending

DOE-STD-1128-98

Guide of Good Practices for Occupational Radiological Protection in Plutonium Facilities

airborne radioactivity areas. The RWPs should also be used to control entry into

radiation and contamination areas and for handling materials with removable

contamination. The RWPs should be initiated by the work group responsible for

the activity. All RWPs should be reviewed and approved by the radiation

protection staff. Radiological Work Permits are recommended for other

radiological work in accordance with the standard, Radiological Control (DOE,

1999a). Most plutonium facilities will use them for all but routine entries into

rooms containing glove-box lines. Guidance for posting of RWPs and for their

contents are contained in the standard, Radiological Control.

Radiological workers should read and understand the applicable RWP before

performing work in a radiological area. The RWPs should be located at the access

point to the applicable radiological work area. Workers should acknowledge by

signature or through electronic means that they have read, understood, and will

comply with the RWP before they initially enter the area and after changes.

Out-of-date RWPs should be removed.

3.2.2.3 Radiological Surveys and Data Trending

Area monitoring in the workplace shall be routinely performed, as necessary, to

identify and control potential sources of personnel exposure (10 CFR

835.401(a)(6)). This monitoring should include surveys in areas that are not

ordinarily expected to be contaminated. The program should define minimum

requirements, survey types, and frequencies.

Surveys should be performed at frequencies adequate to identify changes in posting

required or an activity buildup, and to ensure that current radiological controls are

appropriate. The surveys suggested by this section are minimum

recommendations; additional surveys should be conducted, recorded, and reviewed

as necessary to ensure full protection of personnel.

Contamination surveys should be performed to determine surface contamination

area (SCA) boundaries, the appropriate posting of sources or areas, and the location

and extent of localized contamination.

Contamination surveys should be performed and documented prior to the start of

radiological work, during general work activities at times when changes in

contamination level may occur, and following work to assure that final radiological

conditions are acceptable and documented. See Munson et al. (1988).

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