ML19043A796

Battelle - Fyi Copy of SC-OP-002

ML19043A796
Person / Time
Site:	07000008
Issue date:	05/20/2005
From:	Jacobsen J Battelle
To:	Gene Bonano NRC/RGN-III
References
Download: ML19043A796 (13)

Text

May 20, 2005 Mr. Gene Bonano U.S. Nuclear Regulatory Commission Region III 2443 Warrenville Road Suite 210 Lisle, IL 60532-4352

Subject:

FYI Copy of SC-OP-002 Battene The Business o/ Innovation 505 King Avenue Columbus, Ohio 43201-2693 (614) 424-6424 Fax (614) 424-5263 Gene, as we discussed by phone yesterday I am sending this copy of the procedure SC-OP-002 "Facility Post-Decontamination Final Status Survey For Baseline Areas Rev O." This is to help clear up a question from your last inspection.

If you have any questions or comments please do not hesitate to call me at 614-424-4098.

Sincerely,

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Joe Jacobsen BCLDP Radiation Safety Officer MAY 2 4 2005

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This is an approved change by one of the following methods:

• Field Change D

Waiver Effective until--------

NOTE:

Waivers may not be used on any documents involved with the TRU Waste Program.

THIS CHANGE APPLIES TO:

Procedure/Plan D

Work Instruction Doc. No.

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Radiological Sign Technical Support Manager I

Sign I

Date I

Print or Type Sign W. I. Originator (Technical Rep.)

I Print or Type Sign W. I. Originator (Health Physics Rep.)

I Print or Type Sign Waste Representative Print or Type Safety Officer I

Sign I

Print or Type Sign Functional Manager Radiological Technical Su I

Date I

Date I

Date I

Date I

Date I

Date DD0-398 Rev. 5 03/02 (rb)

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... Putting Technology To Work SITE CHARACTERIZATION OPERATING PROCEDURE.

SC-OP-002 Revision 0 (Formerly DD-CP-002)

FACILITY POST-DECONTAMINATION FINAL STATUS SURVEY FOR BASELINE AREAS BATTELLE 505 King A venue Columbus, Ohio 43201 Procedure Status:

[ X ] Non-Critical Procedure

[ ]

Critical Procedure-Procedure Qualification Packet (PQP)

Required CONTROLLED COPY #f

()Batelle

... Putting Technology To Work REVISION RECORD INDICATING LATEST DOCUMENT REVISION

Title:

Facility Post-Decontamination Final Status Survey for Baseline Areas INDEX OF PAGE REVISIONS I

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Issued By

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SC-OP-025

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This procedure, SC=OP-025, Facility Post-Decontamination Final Status Survey for Baseline

,r(1 Areas, has been reviewed and approved by the following.

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Approved By:

P. Weaver Manager, Field Operations

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(/. Poliziani j o 'ect Manager, ;;a-racterizatioil ance Manager, Radiological Technical Support Manager, Regu.latory Compliance and Envi'ronment, Safety, and Health Oversight G. Eriksen Manager, Quality Date l-2.1 -OZ-Date I -d-3 -03,.-

Date Date Date SC-OP-002(psm)

1.0 2.0 Scope FACILITY POST-DECONTAMINATION FINAL STATUS SURVEY FOR BASELINE AREAS SC-OP-002 Revision 0 Page 1 of7 This document discusses the requirements for performing a final status survey on facility surfaces following completion ofBattelle Columbus Laboratories Decommissioning Project (BCLDP) decontamination operations in baseline areas.

Purpose The purpose of this document is to identify, describe, and establish procedures for the monitoring and documentation of residual contamination levels on the surfaces of a facility following decontamination in baseline areas. The final status survey will determine if the radiological conditions are within the limits established in References 3.1.1 and 3.1.2.

3.0 References, Definitions, and Developmental Resources 3.1 References 3.1.1 DD-93-02, Surface Release Criteria Technical Basis Document 3.1.2 NUREG/CR-5849, Manual for Conducting Radiological Surveys in Support of License Termination-Draft Report for Comment, 1992 3.1.3 HS-OP-001, Completion of Industrial Safety Checklist 3.1.4 QD-AP-05.2, Work Instructions 3.1.5 WA-OP-020, Identification, Segregation, Separation, and Documentation of Low Level and Radioactive Mixed Waste 3.1.6 SC-OP-007, Baseline Reference Values for Facility Radiological Characterization Surveys 3.1.7 SC-OP-010, Establishing a Surface Reference Grid for Walls, Floors and Ceilings for a Detailed Characterization Survey 3.1.8 PR-AP-17.1, Operation of the Project Records Management System 3.1.9 Guidelines for Decontamination of Facilities and Equipment Prior to Release for Unrestricted Use or Termination of Licenses for By-Product, Source or Special Nuclear Material, U.S. Nuclear Regulatory Commission

SC-OP-002 Revision 0 Page 2 of7 3.1.10 SC-OP-004, Radioactive Contamination Monitoring Requirements for Facility Surface Characterization 3.2 Definitions Refer to the BCLDP Procedures Directory for definitions of the following terms:

Adjacent Grid Baseline Area Decision Level Value (DL V)

Designated Grid 3.3 Developmental Resources None 4.0 General 4.1 Equipment Minimum Detectable Activity (MDA)

Non-Designated Grid Static Count

• 4.1.1 Gas proportional detectors and associated electronics sensitive to alpha and beta/gamma radioactivity and equipped with an aural indicator. These instruments may be operated in gas flow or static gas configuration and will be capable of detecting alpha-only and alpha-plus-beta activity. Some electronics may also allow beta-only readings. Examples of gas proportional detectors are the Eberline ESP-2 meter with a Ludlum 239-lF detector (floor monitor) and the Eberline ESP-2 meter with a Ludlum 43-20 detector.

4.1.2 Scintillation detectors and associated electronics sensitive to alpha, beta, or gamma radiation. These instruments may be capable of detecting both alpha and beta activity and discriminating between them. Examples of scintillation-type instruments are the Delta 3/DP6 combination for alpha and beta detection/discrimination and a Nal crystal (Ludlum 12S Micro R meter) for gamma detection.

4.1.3 A pressurized ionization chamber, Micro R meter, or Geiger-Mueller instrument may be used to measure external penetrating radiation (gamma) and to estimate exposure rates.

4.1.4 Smears to quantify removable contamination.

SC-OP-002 Revision 0 Page 3 of7 4.1.5 Scaffolding equipment, ladders, and related elevated or remote access equipment.

4.1.6 Personal protective clothing and/or equipment and monitoring equipment as required by the Work Instruction and Radiation Work Permit.

5.0 Procedure Unless otherwise specified, the Surveyor(s) shall be responsible for completing the steps of this procedure.

5.1 Start-Up Documentation 5.1.1 The Project Manager or designee will initial Work Instruction (DD0-104) and Industrial Safety Checklist (DD0-195) in accordance with References 3.1.3 and 3.1.4.

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5.1.2 The Project Manager or designee will request Waste Managemeitr.f ~

Checklist (DD0-164) in accordance with Reference 3.1.5.

5.1.3 Surveyors will, under the direction of the Project Manager or designee, establish a DL V and attach to the Work Instruction, in accordance with Reference 3.1.6.

5.1.4 Surveyors shall complete DD0-380, Field Instrument Check Source, prior to beginning surveys.

5.2 Scanning - Surveys 5.2.1 Refer to the logic chart in Exhibit 1 for the basic steps of the final status survey.

5.2.2 Grid rooms/areas in accordance with Reference 3.1.7.

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Consider inaccessible areas contaminated and not ready for final status ~llt!~1i:~'00 unless documentation is provided by the Remedial Action Manager oe.~,c;l\\\\i..e stating that the contamination levels are below the release criteria in References 1 1.1 !'Inn 1 1 2 RE.~E:.RE:.NC..E.

Perform the final status survey in compliance with References 3.1.8 arul 3.1.9. The general survey procedure is outlined in Reference 3.1.10.

Scan the entire surface area of each adjacent and designated grid section with an alpha/beta survey instrument as the fundamental survey technique.

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SC-OP-002 Revision 0 Page4 of7 Perform a scan in the alpha-plus-beta mode ( or beta-only mode). Also perform an alpha-only scan unless the MDA of the instrument in the alpha-plus-beta mode is less than the surface release criteria specified in Reference 3.1.1.

5.2.6 Perform scans for each category of surface material (e.g., metal, solid concrete, concrete block).

5.2. 7 Scan manually or by some mechanically driven device.

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Cheek the instt mnent's operation at least once per hom (01 as needed by Hl.Skam0ftt ttsage 8fl6: experience) using a check source of established count rate. Document source check readings on DD0-380.Discontinue use of the monitoring instrument if the check source reading varies more than 10% of the established rate (i.e., reading does not fall within the source check range listed on the detector). If source check is failed, the Characterization Project Manager shall evaluate all data collected since the last acceptable source check for validity.

5.2.9 Do not separate surface materials less than 10 centimeters in width from the predominant surface material in the grid.

5.2.10 Perform scanning slowly (-5 cm/sec) at-.5 cm passing the detector over the surface of interest. Record the maximum value displayed by the instrument for the entire surface on DD0-376 if the DL V is not exceeded.

5.2.11 For areas where measurements exceed the DLV, provide precise identification of the area and additional information.

5.2.11.1 5.2.11.2 5.2.11.3 Provide identification of the area in accordance with Reference 3.1.7 and include additional data collection: (1) a static alpha.-

plus-beta measurement, (2) a static alpha-only measurement, and (3) a smear sample.

Take static measurements in the ratemeter mode of the instrument. If the instrument is capable of storing the highest measurement (i.e., peak trap), use this mode.

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Designate grids in which dpm values exceed 80% of.'t!fi~v.alues stated in Reference 3.1.1 shall be designated for further evaluation by the Characterization Project Manager (or designee). Calculation of the dpm values shall be perfff..~ed as follows:

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SC-OP-002 Revision 0 Page 5 of7 instrument reading (cpm/180 cm2) mean value for background ( cpm/180 cm2) instrument efficiency expressed as a decimal (cpm/dpm) 5.2.12 Record all readings and locations on DD0-376.

5.3 Population Surveys 5.3.1 Perform a large population statistical survey for designated, adjacent, and non-designated grids according to the following.

Total Number Number of Grids to ofGridsa Receive Static Counts

<30 100% of total grids 30 to 300 30 grids

>300 10% of total grids a

2 Gnds are normally 1 m.

5.3.2 Ensure that population measurements consist of (a) static, one minute, alpha-plus-beta integrated count; (b) static, one minute, alpha-only integrated count; and ( c) a smear sample.

5.3.3 Record all readings and locations on DD0-376.

5.4 Summarize each work day's survey/sampling activities, including any atypical events, on DD0-382.

6.0 Records Records generated by implementation of this procedure are completed data sheets, which are compiled and submitted to Project Records as referenced in PR-AP-17.1, (Reference

,3.1.8).

Work Instruction Waste Management Checklist Industrial Safety Checklist Characterization Radiological Survey Report

Field Instrument Source Check Daily Summary Report Form 7.0 Forms, Exhibits and Attachments 7.1 Forms DD0-104, Work Instruction (Reference 3.1.4)

DD0-164, Waste Management Checklist (Reference 3.1.5)

DD0-195, Industrial Safety Checklist (Reference 3.1.3)

SC-OP-002 Revision 0 Page 6 of7 DD0-376, Characterization Radiological Survey Report (Reference 3.1.10)

DD0-380, Field Instrument Source Check (Reference 3.1.10)

DD0-382, Daily Summary Report Form (Reference 3.1.10) 7.2 Exhibits Exhibit 1, Logic Chart 7.3 Attachments None.

Scan all designated grid EXHIBIT 1 LOGIC CHART SC-OP-002 Revision 0 Page 7 of7 in the a+ ~ mode for l.-------------------------------------------1 each surface material Perform large population static counts and smears Scan all adjacent grids in a + ~ modes for each surface material Perform large population static counts and smears Non-designated grids large population counts and smears Yes Static count in a+ ~

and a only modes and smear samples Static count in a+ ~

and a only modes and smear samples Is grid > 80%

of Release Criteria Yes Designate grid for evaluation by Characterization Manager Designate grid for evaluation by Characterization Manager

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