ML20137V647
| ML20137V647 | |
| Person / Time | |
|---|---|
| Issue date: | 03/11/1997 |
| From: | Cool D NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Madera J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20137V631 | List: |
| References | |
| NUDOCS 9704170365 | |
| Download: ML20137V647 (1) | |
Text
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March 11, 1997 1
MEMORANDUM T0: John Madera. Chief Nuclear Materials Inspection Branch 1 Region III FROM: Donald A. Cool. Director (orig. signed by) i Division of Industrial and l
Nedical Nuclear Safety. NMSS
SUBJECT:
TECHNICAL ASSISTANCE REQUEST CONCERNING CERAC. INC.. AND EFFLUENT RELEASES TO THE SANITARY SEWER
!. I am responding to your technical assistance request dated February 20. 1997, i (attached) requesting a determination if passing radioactive material liquid effluents through a 0.45 micron filter is an adequate methodology to insure compliance with 10 CFR 20.2003(a)(1). In a letter from Cerac. Inc. dated February 11. 1997, the licensee proposes to use a 0.45 micron filter, or smaller, and pass all liquid effluent in question through it prior to discharge to the sanitary sewer.
The filtration and radiometric analysis of suspended solids is described as an acceptable method for determining solubility of an effluent in Information Notice 94-07. " Solubility Criteria for Liquid Effluent Releases to Sanitary Sewerage Under the Revised 10 CFR Part 20." The Notice cited as acceptable procedures using a 0.45 micron filter to determine the suspended solids in the effluent. The IN indicates " . . activity in the suspended solids portion of the effluent greater than that found in similarly processed background water would indicate the presence of insoluble radioactive material." Conversely, if the material passes through the filter, the ponion that passes through l should be considered soluble. Therefore, the proposal by the licensee in i Cerac's February 11, 1997 letter is deemed adequate to show compliance with l 10 CFR 20.2003(a)(1). It should be noted that a 0.2 micron filter, mentioned in their letter, is neither used in the standard analysis, nor is it required to show compliance.
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Attachment:
As stated CONTACT: Joe DeCicco. NMSS/IMNS (301) 415-7833 l e-mail (jxdl) l Distribution: INNS 5713 (SEE NEXT PAGE)
DOCUMENT NAME: G:IMNS5713.JED * - See previous concurrence To receive a copy of this document, indicate in the box: "C"- Copy without attachment / enc 1. "E"
= Copy with attachment /enci "N' = No copy OFFICIAL RECORD COPY
- 0FC IM0B* IMNS* OGC* IEW[ ,
NAME JDeCicco/ll JPiccone RFonner /M1 DATE M 3/5/97 3/6/97 3/10/97 3/l(/97
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