IR 05000254/1989015
| ML20246A139 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 06/28/1989 |
| From: | Miller D, Schumacher M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20246A135 | List: |
| References | |
| 50-254-89-15, 50-265-89-15, NUDOCS 8907060162 | |
| Download: ML20246A139 (5) | |
Text
s,.;
-
,
'
<..+
-l;
. f.
'
,
i,y, e
i US S. NUCLEAR REGULATORY COMMISSION L
REGION III.
.)
'
,
{
i
'
Reports No. 50-254/89015(0RSS); 50-265/89015(DRSS)
Docket Nos. 50-254; 50-265
. Licensee:
Commonwealth Edison' Company Post Office Box'767 Chicago,,IL 60690 Facility Name: Quad Cities Nuclear Power Station, Units 1 and 2
<.
Inspection'At: Quad Cities Site, Cordova, Illinois Inspection Conducted: June 19-21, 1989 xb.f %Od+
Inspectors:
.D.'E.. Miller 6/"f/ff
'
Date O 2 $ndL/pv Approved By:
M. Schumacher, Chief 6/#
Radiological Controls and Date Chemistry Section
'Inspectior. Summary
-
Inspection on June 19-21,- 1989 (Reports No. 50-254/89015(DRSS);
-No. 50-265/89015(DRSS))
Areas Inspected:
Routine unannounced inspection of the licensee's radwaste-
' management program, including:
solid, liquid, and. gaseous radioactive wastes-(IP.84750); audits and assessments (IP 84750), and an unplanned liquid'radwaste release (IP 92701).
Results:. Overall,=the licensee's radwaste' management program is good, There have been no transportation incidents since last reviewed.
No violations were identified.
Radiological consequences of use of CCST water to launder protective clothing needs to be evaluated by the licensee.
89o70gd[h.
$4 PDR-Q-
'
=x---_.
---
_
n-iiv-
-
v---
+
--
--
- - -
--
- - - - - -
- - - - - - - - - - - - - -
i
.
.
.,
\\
I
[
DETAILS
]
L 1.
Persons Contacted
)
T. Barber, Regulatory Assurance J. Forrest, Radwaste Coordinator R. Hopkins, QA Engineer
!
' A. Lewis, Health Physics Supervisor
'
G. Spedl, Production Superintendent R. Wiebenga, Chemist R. Higgins, NRC Senior Resident Inspector The inspector contacted other licensee employees during the inspection.
The above individuals attended the exit meeting on June 21, 1989.
' 2.
General This inspection was conducted to review the licensee's radwaste management
program. Also reviewed was an unplanned liquid radwaste release. The inspector toured radwaste handling, processing, and storage facilities; no problems were noted.
Housekeeping and cleanliness appeared adequate to good.
3.
Solid Radioactive Wastes (IP 84750)
The inspector selectively reviewed the licensee's solid radioactive waste management program, including:
overall performance of the process control and quality assurance programs; adequacy of required records, reports, and notifications; and experience concerning identification and correction of programmatic weaknesses.
<
l The licensee has discontinued segregation of potentially clean from l
potentially contaminated refuse leaving radioF.
'ly controlled areas l
because of an industry audit concern. Other thc.n rJuse segregation, I
no changes in the solid radwaste program have been made since reported in Inspection Reports No. 50-254/88013; 50-265/88013.
The inspector selectively reviewed records of packaged solid radwaste shipments made during 1989 to date; no problems were noted. There were no transportation incidents in 1988 or 1989 to date.
N'o violations or deviations were identified.
4.
Liquid Radioactive Wastes (IP 84750)
,
The inspector reviewed the licensee's liquid radwaste effluent program, including: determination whether liquid radwaste effluents were in accordance with regulatory requirements; adequacy of required records, i
reports, and notifications; and experience concerning identification j
and correction of programmatic weaknesses.
I I
_ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ - _ _ _ _ _ _ _ _ - _ _ _ - _ _ _ _ - -
.
3'
.
..
.
Liquid effluents are normally released on a batch basis from a single tank (following sampling and analysis) to a single monitored (with alarm
.and isolation function) radwaste release line.
The line directs effluent to one of two diffuser lines to provide dilution with station circulating water prior to reaching the river.
Most plant liquids are processed and reclaimed by use of filters and resin beds. As a result, batch releases consist mainly of laundry water or a batch of liquid which has been processed but either does not meet chemical criteria for reuse or is released during the early stages of an outage due to lack of storage space.
Batch release records were reviewed for 1989 to date. No problems were noted. An unplanned release via a laundry drain tank line break is discussed in Section 7.
Calibrations of service water and liquid radwaste monitors were verified to be adequately performed at the required frequency.
No violations or deviations were identified.
5.
Gaseous Radioactive Waste (IP 847241 The inspector reviewed the licensee's gaseous radwaste effluent program, including: gaseous radioactive waste effluents for compliance with regulatory requirements; adequacy of required records, reports, and notifications; and experience concerning identification and correction of programmatic weaknesses.
Gaseous release pathways, monitoring capabilities, and collection and analysis methods remain essentially as previously described (Inspection Reports No. 254/87026; 265/87026 and 254/85021; 265/85024).
The inspector reviewed semiannual effluent reports for 1988 and selectively reviewed gaseous release records for 1989 to date.
No instances of a release exceeding technical specification limits was noted. Technical specification gaseous effluent collection and analysis requirements appear to be met. Annual reports since 1984 show a significant reduction in the total noble gas releases. The licensee attributes the reduction of noble gas releases mostly to the phased-in use of " barrier" fuel.
Calibration of noble gaseous effluent monitors was verified to be adequately performed at the required frequency.
No violations or deviations were identified.
6.
Audits and Assessments (IP 84750)
The inspector reviewed records of onsite and offsite quality assurance audits of the radwaste management program performed by the licensee
'during the period October 1988 through May 1989.
Extent of audits and adequacy and timeliness of corrective actions were reviewed.
L _
__
__
-_-.
.
-
..
One station and one offsite audit was conducted during the' period; reviewed were various radwaste management subjects.
No significant findings resulted from the audits. Also,-an audit of the contractor performing control blade cutting in the fuel pool was performed; there were no findings.
The extent of audits and qualifications of auditors appears good.
No violations or deviations were identified.
7.
Unplanned Liquid Radwaste Release (IP 92701)
On June 8, 1989, a licensee representative saw soap suds coming up through a grating covering a trench in the Unit 1 trackway; the trench houses a PVC pipe through which controlled releases of chemicals are made to.the circulating water system discharge. The licensee uncovered the trench and found that laundry water was somehow getting into the trench, and that the PCV pipe in the trench had a broken section. The laundry water in the trench.was entering the PCV pipe through the pipe break; the water then traveled through the pipe and was discharged to the circulating water discharge canal.
The licensee investigated the source of the laundry water in the trench and found that a pipe that transfers laundry water from the laundry drain tank to the laundry sample tank travels through concrete directly under the trench discussed above; this transfer pipe apparently was ruptured.
The licensee installed a soft pipe between the laundry drain tank and the laundryEsample tank; this temporary line will be used to transfer laundry water until the broken transfer line is repaired.
The licensee reviewed radwaste processing logs and found that discrepancies in expected laundry tank content volumes, after transfers, began on May 20, 1989; the licensee believes that the transfer line ruptured on that date.
From these volume discrepancies, the licensee estimated that 6,000 gallons of laundry water was discharged to the circulating water without being sampled, analyzed, discharged in a planned manner, or quantified.
The licensee sampled and analyzed the contents of the laundry sample tank
!
and found that the cumulative MPC fraction was about one, which is
'
consistent with past planned releases of laundry water. After dilution in the circulating water, the isotopic concentration of the unplanned liquid release was a small fraction of MPC. The total activity in the unplanned release was calculated to be about 300 microcuries including tritium; tritium was the major constituent.
Failure to collect and analyze samples l
of the liquid before release is a violation of Technical Specification 4.8.B.1.
!
Corrective action was taken immediately upon discovery of the problem and this violation meets the criteria of 10 CFR Part 2, Appendix C, Section V.A.;
I consequently, no notice of violation will be issued, and this matter is l
considered closed.
i
~
____-_-_____ - ____
i i
'
7 7
_
..; - [.
S'
Noting that' the tritium concentration'in the laundry water was about MPC,
&
and several activation and fission product isotopes were present, the inspector learned from the licensee that-the source of water. to the laundry is the contaminated condensate storage tank (CCST). The
^p inspector discussed with the licensee during the inspection and at' the exit meeting the apparent need to investigate possible radiological
-
consequences of using CCST water'to launder protection clothing.
(0 pen Ite;. 254/89015-01; 265/89015-01).
'
g One licensee identified violation was noted.
i t
8.
Exit Meeting The inspector. met with licensee representatives (denoted in Section 1)
at the cor.:1usion of the inspection on June 21, 1989, to discuss the scope'of the inspection and.the findings..The inspectors also discussed
-
the likely informational content of the inspection report regarding documents and processes' reviewed by the ' inspector during the inspection.
The licensee did not identify any such documents / processes as-propri eta ry.-
The' inspector specifically discussed use of CCST water to launder protective clothing.
The licensee committed to investigate radiological consequences of such use of CCST water.
(Section 7)
l l
l-l
'
l l'
l
5
- - _ _ = _ - - - - _ _ - -. - -
._
l l.