ML20086B856

Experimental Corp 1994 Annual Rept for Saxton Nuclear Experimental Facility for 940101-1231

ML20086B856
Person / Time
Site:	Saxton File:GPU Nuclear icon.png
Issue date:	12/31/1994
From:	SAXTON NUCLEAR EXPERIMENTAL CORP.
To:
Shared Package
ML20086B845	List: ML20086B842 ML20086B856
References
C301-95-2012, NUDOCS 9507060130
Download: ML20086B856 (10)

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Attachment 1 [

C301-95-2012 ,

Page 1 of 10 SAXTON NUCLEAR EXPERINENTAL CORPORATION F

I 1994 ANNUAL REPORT FOR THE SAXTON NUCLEAR EXPERINENTAL FACILITY P

i January 1, 1994 - December 31, 1994 l i

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'I 9507060130 950628 PDR ADOCK 05000146 R PDR

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Attachment 1 l C301-95-2012  !

Page 2 of 10 l EXECUTIVE

SUMMARY

During the report period January 1, 1994 through December 31, 1994, various activities were conducted at the SNEC facility to further the decontamination and decommissioning efforts at the site while assuring continued protection of the health and safety of the public and SNEF staff.

A total of 79 entry days into the Containment Vessel (CV) were recorded.

These entries were made for Technical Specification quarterly surveys, routine housekeeping and work, monorail hoist installation, polar crane refurbishment, sump alarm installation, electrical modifications, decommissioning planning, and NRC, GPUN management and open house tours.

All of the required Technical Specification quarterly radiation surveys were successfully conducted.

In addition, the supplemental environmental monitoring program maintained by GPU Nuclear at the site continued during 1994. Results of these monitoring programs and surveys indicate that there has been no appreciable change in the radiological or environmental conditions at the facility compared to previous years. The facility currently poses no increased risk to the health and safety of the public.

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ANNUAL REPORT IN COMPLIANCE WITH PARAGRAPH B 6.b 0F THE SNEC TECHNICAL SPECIFICATIONS JANUARY 1, 1994 - DECEMBER 31, 1994 Introduction This report is prepared in compliance with Section B.6.b of the Saxton Nuclear Experimental Corporation (SNEC) Technical Specifications. The reporting '

period covers January 1, 1994 through December 31, 1994. Each section presented corresponds to the appropriate requirements of the Technical Specifications.

A. Information Relating to Changes to those Staff Positions that are Designated as being Responsible for the Deactivated Facility. (Section .

B.6.b(1))

There were no changes to staff position responsible for the deactivated facility during 1994.

B. Summary of Entries in the Containment Vessel (CV) From January 1.1994 to December 31. 1994. (Section B.6.b(2))

A summary of the 1994 entries into the Saxton Nuclear Experimental Facility (SNEF) Containment Vessel are presented below.

1. First Quarter Entry Days totaled 13.

Entries were performed for the following evolutions:

l A. Quarterly Inspection  !

B. GPUN Engineering / TLG Inspections I C. Pa. Drilling - Geo Eng. & Aquifer System Inspections D. Radiological Surveys

2. Second Quarter Entry Days Totaled 24 Entries were performed for the following evolutions:

A. Quarterly Inspections B. Radiological Surveys C. GPUN Engineering Inspections D. Communications Open House E. Installation of one ton monorail hoist F. Electrical work for polar crane G. Erection of scaffolding for polar crane refurbishment H. Inspection of 20 ton polar crane.

I. Saxton management tour

3. Third Quarter Entry days totaled 33 I

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Attachment 1 C301-95-2012 Page 4 of 10 Entries were performed for the following evolutions:

A. Quarterly Inspections B. Removal of Scaffolding C. Radiological Surveys D. Safety fire inspection E. GPUN Engineering inspection F. Refurbishment of 20 ton polar crane G. Electrical Work H. NRC tour I. QA inspection J. General Officers Review Board tour

4. Fourth Quarter Entry Days Totaled 9 Entries were performed for the following evolutions:

A. Quarterly inspection B. Radiological Surveys C. Load test of 20 ton crane D. GPUN Engineering inspection E. Installation of CV sump alarm F. Polar crane training C. Summary of Maintenance and Design Changes Made to the Deactivated Facility, - (Section B.6.b(3))

Maintenance and design changes instituted during 1994 were as follows:

1. Installation of a one ton monorail hoist in the personnel airlock.

2. Refurbishment and load testing of the 20 ton crane.

3. Installation of a level alarm in the CV sump.

4. Shipment and disposal of 56,161 ft' of low level contaminated soil at Enviromentalcare Inc of Utah.

D. Results of Radioactivity Levels and of Water Sample Analysis. - (Section B.6.b(4))

Analysis results of water samples from the CV sump and CV pipe tunnel are presented in Tables,I and II. Sample results from the CV sump contain the highest activity.' This is consistent with previous data. The water in the CV sump is completely contained and is not in contact with the environment, therefore, there is no threat to the public health and safety. CV sump water originates from condensation that forms on the inside of the CV walls which drains downward into the sump. CV sump capacity is approximately 325 gallons. Water levels are measured i quarterly and have shown slight increases due to condensation. The sump contained approximately 120 gallons on 12/16/94. ]

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' C301-95-2012 Page 5 of 10

. Table III presents the highest waist level dose rates taken around the CV and Penelec perimeter fences during the quarterly surveys and is  !

consistent with previous data. Count rate information obtained from surveys of the CV High Efficiency Filter is presented in Table IV.

Dose rates at the 20 permanent survey points in the CV ranged from less than 0.2 to 0.8 mr/hr. The data are presented in Table V. Smear surveys from the same 20 permanently marked points ranged from less than detectable activity to 5570 dpm/100 cm" (Table VI). The data from these surveys are generally consistent the past results and do not display any  ;

adverse trends.

Monitoring wells Geo 3, 4, 6, & 7 were sampled and analyzed by gamma spectroscopy on a quarterly basis. The results are reported in Table VII.

E. Review of the performance of Security and Surveillance measure. - l (Section B.6.b.(5))

During 1994 there were no break-ins nor known attempted break-ins at l SNEF. No changes were made to in-place security features since  !

demolition of the outbuilding structures was completed in 1992.

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Page 6 of.10 E

TABLEI SNEF Containment Vessel (CV) Sump Water Analysis Results 1994,( Ci/ml) l 1st. Otr. 2nd Qtr 3rd Qtr. 4th Qtr.  ;

Radionuclides 03/17/94 06/15/94 09/20/94 12/14/94

< 4.0 E-8 < 4.0 E-8 < 5.0 E-8 < 4.0 E-8 <

Gross Alpha {

1' 3.2 E-3 + 0.1 E-3 2.9 E-3 + 0.1 E-3 3.2 E-3 + 0.1 E-3 3.1 E-3 + 0.1 E-3 I

Gross Beta 1 1

4.07 E-4 1 0.1E4 9.8 E t 0.1 E-4 4.0 E-4 1 0.1 E-4 3.7 E-4 1 0.1 E-4 1

6.3 E-6 1 0.1 E-6 6.8 E-6 1 0.1 E-6 8.5 E-6 1 0.1 E-6 8.8 E-6 1: 0.1'E-6 Co-60

< 1.0 E-6 < 2.0 E-6 < 9.0 E-7 < 1.0 E-6 2.67 E-3 1 0.27 E-3 2.59 E-3 1 0.26 E-3 2.99 E-3 1 0.3 E-3 2.99 E-3 1 0.3 E-3 7

TABLEli SNEF (CV) Pipe Tunnel Analysis Results 1994 l

( Ci/ml) )

l ist. Otr. 2nd Qtr 3rd Qtr. l 4th Qtr.

Radionuclides 03/16194 - 06/15/94 09/20/94 12/15/94

,gg 2.5 E-8 1 0.3 E 8 no analysis performed 1.6 E-8 1 0.2 E-8 - 4.1 E-8 1 0.4 E-8 I

< 1.8 E 7 < 1.8 E-7 < 1.8 E-7 .< 1.I E-7 I. H-3 I l

. < .0 E-9 40 E-9 < 3.0 E Co-60

< 1.4 E-9 < 3.0 E-9 < 3.0 E.9 < 2.0 E-9 7.6 E-8 1 01,8 E-8 1.2 E-8 1 0.3 E-8 < 4 E-9 1.6 E-8 1 0.3 E-8

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Attachment 1 C301-95-2012 Page 7 of 10 TABLE 111 SNEF Site Perimeter Fence Highest Dose Rates (micro R/hr) 03/16/94 l 20 06/14/94 l 23 09/19/94 17 12/15/94 l 13 CV Perimeter Fence Highest Dose Rate (micro R/hr) l 03/16/94 i 15 l 06/14/94 l 20 09/19/94 l 22 12/15/94 17 l

Penelec Perimeter Fence Highest Dose Rate (micro R/hr) 03/16/94 l 12 06/14/94 17 09/19/94 17 12/15/94 l 15 l TABLE IV Count Rate Surveys CV High Efficiency Filter 1994 ,

03/17/94 < 100 nepm

< 100 nepm i 06/15/94 09/20/94 < 100 nepm 12/14/94 < 100 nepm

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Attachment 1 l C301-95-2012 TABLE V Page 8 of 10 SNEF CV Dose Rates 1994 20 Permanent Survey Points (Gross Beta Gamma -mRIhr) ,

' 1st Qtr. 2nd Qtr. I 3rd Qtr. 4th Qtr. l mey Point # 6/15/94 I 9/20/94 12/16/94 i 3/17/94 1 < 0.2 < 0.2 l < 0.2 < 0.2 2 < 0.2 l < 0.2 l < 0.2 < 0.2 3 < 0.2 < 0.2 l 0.2 < 0.2 l

4 < 0.2 < 0.2 l < 0.2 < 0.2 5 < 0.2 < 0.2 l 0.2 < 0.2 6 < 0.2 < 0.2 l 0.2 < 0.2 7 < 0.2 ,

< 0.2 l < 0.2 < 0.2 8 < 0.2 l < 0.2 1 0.2 < 0.2 9 < 0.2 l < 0.2 0.8 0.4 10 < 0.2 l < 0.2 < 0.2 0.2 11 < 0.2 < 0.2 l 0.2 l < 0.2 -

12 < 0.2 < 0.2 < 0.2 < 0.2 l

13 < 0.2 < 0.2 < 0.2 < 0.2 14 < 0.2 l < 0.2 < 0.2 < 0.2 15 < 0.2 < 0.2 l 0.2 < 0.2 16 < 0.2 < 0.2 l < 0.2 < 0.2 17 < 0.2 < 0.2 l 0.2 < 0.2 18 < 0.2 < 0.2 l < 0.2 < 0.2 19 < 0.2 l < 0.2 l < 0.2 l < 0.2 20 < 0.2 l < 0.2 l < 0.2 l < 0.2 c.

Attachment 1 C301-95-2012  :

TABLE VI Page 9 of 10 l SNEF CV Smear Survey 1994 20 Permanent Survey Points (dpm/100 cm')

1 st. Otr. . 2nd Qtr. 3rd Qtr. t 4th Qtr. '

"Y "

3/17/94  ! 6/15/94 9/20/94 l 12/16/94 1 l < 180 < 240 < 234 < 234  !

2 < 180 < 240 < 234 < 234 f l l 3 < 180 < 240 < 234 < 234  !

l l 4 l 190 l < 240 < 234 < 234 l i

5 < 180 < 240 l < 234 < 234 l l 6 l < 180 i < 240 l < 234 < 23'4 }

7 j < 180 l < 240 l < 234 < 234 ,

8 < 180 < 240 l < 234 < 234 l

9 460 < 240 < 234 < 234 l

10 l 930 l 440 530 1000 11 l < 180 l < 240 < 234 < 234 l 12 l 560 1360 l 5570 2920 13 l 530 880 l 450 560 l 14 l < 180 400 l 570 1560  !

15 220 l 200 270 640 l

16 l 410 220 1150 1020 17 < 180 < 240 < 234 < 234 ,

l 18 l < 180 l < 240 650 l 1840 ,

19 1 360 360- l < 234 640 l l

20 l < 180 l < 240 l < 234 < 234 t

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' C301-95-2012' Page 10 of~10 TABLE Vil Sample Results of Groundwater Taken from the Piezometers Around the CV Pipe Tunnel'in 1994 (pCl/L)

Location Co-60 Cs - 134 Cs 137 SAMPLE DATE - 4/6/94 DRY WELL DRY WELL l DRY WELL GEO-3 l f  :

<4 <3 <3 .

GEO-4 l l 1

<3 l <3- <3 -l GEO-6 l , .

j <5  : <4  ; <S i GEC-7  ;

r i SAMPLE DATE - 7/13/94  !

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<9 <6 .l <7 ,

GEO-3 l l

<6 <6 l <7 GEO.4 l l ,

<3 <3 l <3  ;

GEO-6 l

<2 <2 l <2 f GEO.7 l e i SAMPLE DATE 10/6/94 i

<2 <2 l <7 ,

f GEO-3 l

<3  !

I <3 l <3 l GEO-4

<8 l <6 . <6 GEO-6

<3 <3 <3 GEO7 i } l .

SAMPLE DATE 1/12/95 i

<6 <4 l <5 f l

GEO-3 l l WELL ICED OVER WELL ICED OVER l WELLICED OVER f GEO-4 f*. <6 l <6 l <6 f GEO-6 GEO 7 l- <3 I "3 'l <3 f

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