ML20041A599
| ML20041A599 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 02/04/1982 |
| From: | Manry M GEORGIA POWER CO. |
| To: | James O'Reilly NRC, NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| PM-82-87, RO-50-321-1979, NUDOCS 8202220325 | |
| Download: ML20041A599 (4) | |
Text
--
Georgi) Power Company o
Post Office B;x 439 8:xt:y, Georgl] 31513 a
Telephone 912 367-7781 lllRg ;; -
912 537-9444
.q,,
GeorgiaPbwer
'7 'r r n pf-
- Nf Edwin 1. Hatch Nuclear Plant February 4, 1982 PM-82-87 PLANT E.
I.
HATCH g31', /
Licensee Event Report
[M N
Docket No. 50-321 g7
-\\
s e
U United States Nuclear Regulatory Commission c1 22 3.
l Office of Inspection and Enforcement j
Region II d
3 Suite 3100 101 Marietta Street
/
Atlanta, Georgia 30303 ATTENTION:
Mr. James P.
O'Reilly Pursuant to Section 6.9.1.9.d of Plant Hatch Unit 1
Technical Specifications and Sections 3.2 and 5.7.2 of the Hatch Unit 1
i Environmental Technical Specifications, please find the attached Supplemental Narrative Summary to Reportable Occurrence Report No.
50-321/1979-021, Rev.
5.
The attached report provides supplemental information to the previous submittal of this LER.
A M.
Manry Plant Manager MM/WHR/ tab Xc: J.
H. Miller, Jr.
R.
J.
Kelly G.
F.
Head J.
T.
Beckham, Jr.
R.
D. Baker C.
L. Coggin Control Room Document Control QhM 5tS 8202220325 820204
_l b M PDR ADOCK 05000321 4 /
S PDR
,g
. February 4,_1982 SUPPLEMENTAL NARRATIVE
SUMMARY
TO LER 50-321/1979-021, REV. 5 EDWIN I.
HATCH NUCLEAR PLANT - UNIT I NONROUTINE RADIOLOGICAL ENVIRONMENTAL OPERATING ANOMALOUS MEASUREMENT REPORT This. report, which supplements the previous submittals on LER 50-321/1979-021 provides updated-data on tritium levels in groundwater samples taken from locations where the average _ value over the ' fourth quarter of 1981 exceeded samples according to Table 3.2-3 of the ETS.
There continues to be no significant impact on the public health and safety due to these readings which exceeded the report level.
As reported previously, any releases to unrestricted areas are through the outfalls of the drainage system; such releases continue to be minuscule and result in insignificant doses to the public.
The tritium levels at test holes N9B, P16, T3, and T18 have been reportable for a few years.
The tritium levels at test holes T10 through T13 became reportable during the third quarter 1981.
The tritium levels found in samples gathered during the fourth quarter at these locations, along with the history of the average quarterly levels, are presented in either Table 1 or Table 2.
The long time reportable locations are listed in Table
-1, and the recently reportable locations are listed in Table 2.
Test holes N9B and T3 are located in the area north of the turbine building.
As previously reported, the high tritium levels in this area are attributed to process water releases from an open-ended line near Pl7B which occurred prior to March 21,
- 1979, when this extraneous source was terminated.
It is seen that the levels'at N9B and.T3 increased slightly during the_ fourth quarter.
Test holes P16 and T 18, as well as T10 through T13, are located in the CST-1 area.
The high tritium levels in this area have been attributed to leaks associated with the condensate transfer pumps.
Some of these leaks occurred several years ago.
As reported in the last Quarterly Supplement, another leak to one of the CST-1 condensate transfer pumps occurred in July, the dike floor flooded, the condensate-water was subsequently drained to radwaste, a sudden increase in the tritium levels in a number of nearby test holes followed.
It is seen from Table 1 that there was little change in the tritium levels at T18; no sample 'was available at P16 due to the dry weather.
It is seen from Table 2
that the levels dropped substantially at T10, Tll, and T12.
The quarterly average level at T13 increased slightly (indicating some - movement of the groundwater in that direction), however, the final reading for the quarter was low.
Supplement February 4,-1982 2 1
'S TABLE' 11
. TRITIUM LEVELS AT LOCATIONS WHERE'THE' LEVELS
~
HAVE~BEEN-REPORTABLE.FOR'A SUSTAINED PERIOD pCi/1 QUARTERLY AVERAGE QTR N9B P16 T3 T18 2-78 1.44 ES
.3-78 3'.45 E3
- l'54 E5'
. 78
-4.49 E3
'l-79 3.t2.E4 1.26 ES 2-79 8.50 E4 9.60 E4 1.19 E4 6.68 E4 3-79 1.38 E5 7.081 E4 1.28 E4' 7.61 E4
'4-79 1.71 E5 o6.38-E4 2.01 E4
'6.84 E4 1-80 1.73 E5 9.18 E4 l2;47 E4
- 8.71 E4 2-80 1.79 E5 1.12.E5 3.92 E4 6.36 E4 3-80 1.64 E5 cdry; 24.60-E4 "7.61 E4
'4-80 l.13~ES
. dry 4.29'E4 5.91'E4 1-81 1.06 E5-6.22 E4-4.'80 E4
'8.29'E4-2-81 18.17 E4 5.73 E4 5.55 E4 7.77 E4 3-81
'8.47 E4 8.55 E4 4.74.E4 11.27 ES 4-81 9.77 E4 dry 5.29 E4
.l.27 E5 DURING FOURTH QUARTER 1981 DATE N98
.P16 T3 T18 10-01 dry 1.30-E5 10-12
.4.85 E4
.l.23 E5 10-14 8.66 E4
~ dry 7-10-23 1, 6 dry;
.l'.32 E5.
10-29 dry.
~ 1. 3 6 ES ~
11-05 7,
3 dry.
..5.35 E4'
.l.34 E5 11-12 9;25 E4'?
? dry' ~ ;
11-13 1 ~
-1.133 E5 12-16 1.14 ES dry
.5.68 E4 1.18 E5 12-22.
idry 1.08 E5 Supplement February 4,.1982
TRITIUM LEVELS'A[ N k h 0NS'WHICH BECAME REPORTABLE DURING THE THIRD QUARTER pCi/1 QUARTERLY AVERAGE-QTR T10-Tll T12.
T13 2-79
'l.83 E3 1.46 E4 3-79'
-1.59 E3 4.80 E2 7.83'E2
'2.23'E2 4-79 5.09 E2 5.28 E2' 9.31 E4 8.06;E3 1-80' 4.13 E2 1.33 E3 7.92 E4 8.43'E4' 2-80 2.78 E3-c l4. 4 4 ':E3.
liS5 jE4:.
1.59 E4 3-80 3.14 E3 3.'94 E3
~1.07'E4 1.48 E4 4-80 6.43 E2,
1.29 E3(
5.22 E3 1.51,E4 1-81 1.96 E2 i
..4.82=E2-7 '.= 41 - E3 l
'3.38'E2 2-81 ~
- 7. 60 Eli '~ -
c..il. 4 9 :E2 7Ll4 E3.
1.57 E3 3-81 1.70 ES
.8.48 E4 1.96 E5 3.49 E4
~4-81 8.70 E4-f3.40 E4'
,4.64lE4 3.80 E4-DURING FOURTH' QUARTER 1981-DATE T10-Tll T12 T13 01 1.29 E5-
.7,01 E4 1.30: ES --
5.58 E4-10-12 9.65 E4 5.46EE4 2.66"E4-2.64 E4 10-23 9.76 E4 5.53 E4
-1.61 E4.
i4.64 E4 10-29 9.30 E4 3.49 E4 2.01 E4 3.94 E4 11-05 8.55.E4 2.84 E4 3.33 E4 15.13 E4 11-12 8.'15 E4~
1.59 E4 4.58 E4-3.08 E4 12-16 5.70 E4 6.05 E3
^6.59'E4
- 5. 35 '.E4 12-22 5.57 E4 6.73 E3 3.35.E4 6.27 E3 Supplement February 4, 1982