ML20202A836
| ML20202A836 | |
| Person / Time | |
|---|---|
| Site: | 07000693 |
| Issue date: | 11/13/1997 |
| From: | Mcgovern J CINTICHEM, INC. |
| To: | Dragoun T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 9712020235 | |
| Download: ML20202A836 (5) | |
Text
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CINTICHEM, INC.
P O, DOX.D* O luxCDO, f%iW YOPK 10007 1914) 351-G131 November 13, 1997 U.S. Nuclear Regulatory Commission Region I 475 Allendale Rd.
King Of Prussia, PA 19406 Att: Hr. Thomas 9ragoun
Dear Mr. Dragoun:
Intelim Lutter Report-Phase 5 Areas At Ref.. Cintichem, Inc., Tuxedo, NY(Docket 70-693; RFTA Ho. 96-17) dated Oct.
2, 1997 The referenced report provided a summary of findings from the last confirmation surveys that were conducted by ORISE at the Cintichem facility. In our review of the data in this report we noted two locations where soil sample results were not in close agreement with the comparable Cintichem final-survey data. These locations were at ORISE sample points #5061 and #5084 in the Reactor building and west of the Hot Lab building, respectively.
Cintichem final-survey samples were not located in these same exact locations and therefore, to obtain an exact comparison, we resampled where the ORISE samples were taken to reconcile the apparent differences between the data. Our findings are reported as follows:
ORISE #5061-Five samples wore taken at and around the marker for the ORISE sample and thcy were analyzed for the same radionuclide mix reported by ORISE. Our data did not match that of ORISE. Although we did get a positive Co-60 result, it was fivefold less than what ORISE reported. Our data from these five samples are included in the enclosed table. Since we couldn't duplicate the ORISE results, and since all of the results pass the acceptance criteria, no further action was taken in the Reactor building.
ORISE #5084-Five samples were taken at and around the marker for the ORISE sample and they were analyzed for the same gamma-emitters listed in the ORISE report. Our results on these samples were in close agreement with the ORISE results. We then performed a biased survey of the gcneral area comprising ~50 SqM along the west side of t!.e Hct Lab building and found several locations that contained elevated Cs-137 and positive, but low, Co-60 results.
About 160 CuFt of soil were removed from these locations and these areas were resampled to assure the effectiveress of this remediation. The results of the analyses of these last samples are included in the enclosed table. A composite sample has been sent out for Sr-90 analysis but we have not
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r.eceived a report on this as of this date. As soon as the report of the analysis for Sr-90 in the composite sample is received this table will be updated and forwarded.
We were disappointed to find the area behind the Hot Lab that needed additional remediation because of our extensive efforts to do the complete job' prior to our Final Survey Report.
As a nitigating circumstance however, wo noted during this second cleanup of this area that these locations were not the same as those involved in the original work and survey areas and that all of them were subsurface that apparently had been covered by alluvium from the hillside above or by sediment and gravel from the roof. It is possible that the elevated Cs-137 was due, ut least partially, to washout from the steep hillside above.
We trust that this report will be satisfactory evidence that these areas are within the acceptance criteria for residual soils on site and that the license termination process can continue without delay.
Very trul yours QnV n Jame#s d. McGovern JJH137 cctT. Dragoun, NRC E. Abelquist. ORISE R. Aldrich. NYDOL D. Orlando, NRC B. Youngberg. NYDEC NRC, DCD T. Michaels NRC C. Warren K. Magar, Tux.
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RADIONUCLIDE CONCENTRATIONS IN SOIL AND WATER SAMPLES PHASE 5 AREAS, CINTICHEM, INC.
TUXEDO, NEW YORK I
i REACTOR BUILDING LOCATIONS (B-1):
RAD!ONUCLIDE CONCENTRATIONS (pCi/g)
SAMPLE NUMBER LOCATION SR-90 CE-144 EU-152 L.
34 AG-110m CS-137 CO-60 AG-108m 6Y;. "~""if0RISEf200:6 N/A
- <0e2'i. ' <0.1i ' W O!1.~ I& s0'.' 7MO.W/44.k [1':OT/-OMiffiN/AT * ' 9 1
h71007A01 4W OF 5061
<0.47
<0.12
<0.15
<0.11 0.24+/-0.07 0.23+/-0.07
<0.07 1
71001A02 4'N OF 5061
<0.13
<0.13
<0.05
<0.04 0.16+/-0.07
<0.10
<0.06
)
7107A03 4'E OF 5061
<0.31
<0.16
<0.05
<0.08 0.09+/-0.03
<0.11
<0.06 71007A04 AT 5061
<0.35
<0.17
<0.06
<0.10
<0.08 0.18+/-0.07
<0.03 71007A05 4'S OF 5061
<0.35
<0.05
<0.04
<0.08 0.06+/-0.04
<0.1 C.
<0.04
- Sr-90 ana!ysis pending results from outs?de vendor 11-23-97 9
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RADIONUCLIDE CONCENTRATIONS IN SOIL AND WATER SAMPLES PHASE 5 AREAS, CINTICHEM, INC.
TUXEDO, NEW YORK LOCATIONS BEHIND HOT LAB (B-2):
l RADIONUCLIDE CONCENTRATIONS (pCi/g)
SAMPLE NUMBER LOCATION SR-90 CE-144 EU-152 CS-134 AG-110m CS-137 CO-60 AG-108m l
~84:
TORISEM1T1 !18+/-0.6 30.37 4 s011's #s031 If TiiROT133f2iH!'OM2!!E0336EUMAW 71119A03 69N 94W
<0.34
<0.21
<0.08
<0.12 1.65+/-0.16 0.29+/-0.06
<0.05 I
71020A24 73N 94W
<0.22
<0.21
<0.07
<0.12
<0.16
<0.07
<0.07 l
71107A01 66N 95W
<0.10
<0.06 40.06
<0.04 0.38+/-0.03
<0.14
<0 08 71104A19 67N 95W
<0.74
<0.28
<0.28
<0.13 2.23+/-0.20
<0.10
<0.08 71031A28 68N 95W
<0.52
<0.32
<0.09
<0.16 2.81 +/-0.25
<0.18
<0.11 71117A08 70N 95W
<0.38
<0.17
<0.15
<0.09
<0.06
<0.04
<0.05 71024A26 71N 95W
<0.29
<0.12
<0.08
<0.16 0.49+/-0.11
<0.09
<0.06 71020A28 75N 95W
<0.29
<0.15
<0.09
<0.15 1.07+/-0.17
<0.04
<0.09 71020A21 77N 95W
<0.40
<0.07
<0.07
<0.03 0.84+/-0.12
<0.09
<0.06 71031A27 67N 96W
<0.53
<0.19
<3.06
<0.05 0.75+/-0.10
<0.08
<0.05 71031A29 68N 96W
<0.72
<0.20
<0.25
<0.13 0.46+/-0.09
<0.05
<0.09 71031A31 69N 96W
<0.45
<0.26
<0.13
<0.17 0.76+/-0.15 0.19+/-0.17
<0.12 -
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1 LOCATIONS BEF:lND HOT LAB (B-2):
i SAMPLE NUMBER LOCATION SR-90 CE-144 EU-152 CS-134 AG-110m CS-137 CO-60 AG-108m 71031A32 70N 96W
<0.65 I
<0.29
<0.12
<0.17
<0.15
<0.07
<0.04 71024A20 72N 96W
<0.28
<0.25
<0.10
<0.16 1.58+/-0.17
<0.10
<0.07 l
71020A23 73N 96W
<0.32
<0.19
<0.07
<0.10 0.59+/-0.13
<0.03
<0.03 71029A07i 76N 96W
<0.27
<0.08
<0.15
<0.12 0.31 +/-0.10
<0.04
<0.06 e
71020A22i 79N 96W
<0.14
<0.08
<0.16
<0.07 0.56+/-0.1
<0.06
<0.16 i
71020A16 62N 97W
<0.24
<0.06
<0.05
<0.03
<0.10
<0.05
<0.04 71020A18 65N 97W
<0.15
<0.17
<0.08
<0.10 2.66+/-0.17
<0.10
<.'z.09 71015A03 69N 97W
<0.44
<0.16
- 0.07
<0.08 0.45+/-0.11
<0.03
<0.07
)
71029A03 71N 97W
<0.53
<0.15
<0.08
<0.11
<0.11
<0.05
<0.03 l
1 71020A15 59N 98W l <0.40
<0.15
<0.08
<0.05 3.01 +/-0.20
<0.17
<0.23 l
r I
- Sr-90 analysis pending results from outside vendor 11-23-97 i
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