ML20137H258

Confirms That Listed Actions Taken at Facility,Per 760913 IE Circular 76-03.All Areas Associated W/Facility Reviewed to Identify Continuous & Transient High Radiation Areas Per 10CFR20.202(b)

ML20137H258
Person / Time
Site:	Dow Chemical Company, 05000000
Issue date:	01/11/1977
From:	Anders O DOW CHEMICAL CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20136D183	List: IA-85-256, Requests That Encl Form Be Completed & Submitted by 760915 & Facility Emergency Plan & Implementing Procedures by 761007 in Order for NRC to Prepare Info Packets for Use in Responding to Incidents or Emergencies IA-85-258, Amend 3 Renewing License R-108 & Incorporating Security Plan as License Condition IA-85-261, Documents That Appropriate Corrective Actions Taken by Dow Chemical Co in Response to 780113 Immediate Action Ltr,Per 780207 Enforcement Conference at Facility IR 05000264/1973001 IR 05000264/1975001 IR 05000264/1977002 IR 05000264/1979003 ML20137G383 ML20137G390 ML20137G402 ML20137G410 ML20137G417 ML20137G432 ML20137G437 ML20137G446 ML20137G450 ML20137G460 ML20137G467 ML20137G472 ML20137G478 ML20137G487 ML20137G507 ML20137G524 ML20137G586 ML20137G600 ML20137G614 ML20137G637 ML20137G653 ML20137G750 ML20137G793 ML20137G816 ML20137G854 ML20137G875 ML20137G888 ML20137G896 ML20137G903 ML20137G908 ML20137G916 ML20137G921 ML20137G926 ML20137G931 ML20137G940 ML20137G951 ML20137G972 ML20137G976 ML20137G983 ML20137G990 ML20137G997 ML20137H003 ML20137H022 ... further results
References
FOIA-85-256, FOIA-85-258, FOIA-85-259, FOIA-85-261 IEC-76-03, IEC-76-3, NUDOCS 8508280236
Download: ML20137H258 (3)

Text

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e 4b3 DOW CHEMICAL U.S.A.

MIDLAND. MICHIGAN 48640 January 11, 1977 Mr. James G. Keppler US Nuclear Regulatory Commission Region III 799 Roosevcit Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

CIRCULAR NO. 76-03 This is to confirm that the following actions have been taken at the Dow TRIGA reactor facility License R-108, Midland, Michigan, in accordance with Circular No. 76-03, dated September 13, 1976.

1. A thorough review of all areas associated with the Dow TRIGA reactor has been carried out to identify the high-radiation areas both continuous and transient as defined in 10 CFR 20,202(b). The following findings are reported.

liigh-radiation areas can exist at, near or above the sampic storage facility in the reactor room which consists of a lead castic built of four inch . hick lead wall into which sampics exceeding the expectation when retrieved from the reactor are stored until further disposal arrangements are made.

Other high-radiation areas include the transient sampic storage rack placed near the loading tube of the rotary sampic rack of the reactor to roccive irradiated sampics during the unloading process. In such sampic racts the high-radiation field exists temporarily over a distance of one or two feet. Both the lead castic and the sampic rack are labeled with "lligh Radiation" arca signs.

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AN OPSMATING UNif OP THE DOW CH8MICAL COMPANY JNi l4 WI

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.. .s Mr. James'G. Keppler 2 January 11, 1977 Othe'r.high-radiation areas are encountered at the dry well storage facilities which are loaded with long life radioactive materials for storage purposes. These facilities are equipped with two-foot thick concrete plugs which can be locked and are labeled to contain radioactive material. A high-radiation field may exist above the well after the removal of the shielding plug with a hoist.

Another transient high-radiation area can existiin the

. hot lab hood when radioactive samples are retrieved via the pneumatic system. The hood area is also. labeled as a high-radiation area with the name of the reactor supervisor during such operations.

The above high-radiation areas are labeled with the proper warning signs and controlled in accordance with 10 CFR 20.202(b) so that inadvertent exposure of personnel is prevented.

3. In pursuance of the intent of Circular 76-03, a written reminder has been issued to all personnel working at the facility describing the policies concerning high-radiation areas. This circular has been made available to all present personnel and will be used for training purposes in the future.

4. The policies instituted at the facilities include the labeling and direct surveillance of the transient high-radiation areas. Any person required to perform work in high-radiation areas must first obtain consent of the originator of the high-radiation area and pc.rtaining instructions.

5. It.is planned to periodically audit the high-radiation area policies during the annual check out of the facility and ensure their continued effectiveness.

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.s l' Mr. James G. Keppler 3 January 11, 1977 l

t A copy of this letter is to be kept in the file of the reactor facility as part of the periodic reporting to the

[ Reactor Operations Committee. This will be in compliance with the request that a record and the detailed findings as l well as the actions taken and the actions to be taken are l retained within the files of the facilities for review by the NRC during the next radiological safety inspection.

l Sincerely, A ,%t a 't. 6 (. A C 4

0. U. Anders Inorganic Analysis .

1602 Building 517/636-0304 bjd

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