ML19321B121
| ML19321B121 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 07/11/1980 |
| From: | Linder F DAIRYLAND POWER COOPERATIVE |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-80-10, LAC-7024, NUDOCS 8007280050 | |
| Download: ML19321B121 (4) | |
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'JUL' 1 5 1980
>D DA/RYLAND h
[k COOPERAT/VE
- Po BOX 817
- 2615 EAST AV SOUTH
- LA CROSSE. WISCONSIN S4601 (608) 788 4 000 July ll, 1980 In reply, please refer *o LAC-7024 DOCKET NO. 50-409 Mr. James G.
Keppler Regional Director U.
S. Nuclear Regulatory Commission Directorate of Regulatory Operations R?gion III 799 Roosevelt Road Glen Ellyn, IL 60137
SUBJECT:
DAIRYLAND POWER COOPERATIVE LA CRO3SE BOILING WATER REACTOR (LACBWR)
PROVISIONAL OPERATING LICENSE NO. DPR-45 IE BULLETIN 80 CONTAMINATION OF NONRADIOACTIVE SYSTEM AND RESULTING POTENTIAL FOR UNMONITORED, UNCONTROLLED RELEASE OF RADIOACTIVITY TO ENVIRONMENT
REFERENCE:
(1)
NRC Letter, Keppler to Linder, dated May 6, 1980.
Dear Mr. Keppler:
In response to IE Bulletin 80-10 contained in Reference (1) which requires action by us with regard to our power reactor facility with an operating license, we have determined the following:
2.
lbvieu your facility design and operation to identify systems that are considered as nonradioactive (or described as nonradioactive in the FSAE),
%t could possibly becane radioactive through interfaces uith radioactive
- systems, i.'e., a nonradioactive system that could becane contaminated due to leakage, valving errors or other opemting conditions in radioactive systems.
In particular, special considention should be given to the following systems: auxiliary boiler system, demineralized cater system, isolation condenser system, PWE secondary cater clean-up system, instr:unent air system, and the sanitary caste system.
DPC RESPONSE The facility design and operation of systems considered as non-radioactive have been reviewed and the design and operating procedures found to be adequate.
A detailed review of the systems requiring special consideration is provided in this response, g9072809 '
y Mr. James G.
Keppler, Regional Director LAC-7024
^
U.
S. Nuclear Regulatory Commission July ll, 1980 1.
Heating Boiler The heating boiler provides steam to the " converter" to heat convector water for the Multizone, Control Room air conditioners and outer wall convectors.
It also supplies steam to space heaters in the turbine plant.
Connections to contaminated systems are protected by closed valves and/or blank flanges as indicated below:
a.
Gland Steam - Double valves and blank flange.
No condensate return exists.
b.
Recombiner Ejector - Valve, blank flange, and check valve.
Condensate return, two locked closed valves, c.
Waste Water Evaporator - Unused.
d.
Containment Building, check valve on steam supply and automatic valve on condensate return.
e.
Decay Heat Cooler - Used only for prehydro heatup to > NDT.
During reactor operation, closed valve and blank in steam line and closed valves in condensate return.
2.
Demineralized Water System The demineralized water system is used only within the plant, and receives its supply from a gravity tank to pumps which main-tain approximately 80 psi pressure on the system.
Portions of the system in the Containment Building, not required for safety related systems, are protected from contamination by automatic-isolation and check valves.
Safety related systems include check valves as well as the control valves.
3.
Shutdown Condenser The shutdown condenser is a shell and tube heat exchanger, with the tubes being utilized for primary steam.
The shell side is supplied by demineralized water, described above, and the High l
Pressure Service Water (HPSW) System.
4.
High Pressure Service Water'(HPSW) System The HPSW obtains its supply from the Mississippi River.
Portions inside the Containment Building are protected the same as the Demineralized Water System..
n r
e t
Mr. James G.
Keppler, Regional Director LAC-7024 U.
S. Nuclear Regulatory Commission July 11, 1980 5.
Instrument Air Instrument air used in the Containment Building is protected by check valves.
The air compressors take a suction from the Turbine Building atmosphere.
6.
Sanitary Waste System No systems or components inside the plant utilize the sanitary waste system.
Showers and sinks required for personnel decon-tamination drain to the waste water storage tanks.
Toilets and sinks in tne rest rooms and lunch room sink drain to the sanitary waste system.
7.
Well Water Well water has been removed from the Containment Building and the building penetration capped off.
2.
Establish a routine sampling /analycis or monitoring program for these systems in order to promptly identify any contaminating events which could lead to unmonitored, uncontrotted liquid or gaseous releases to the environment, including retcases to on-site teaching fields or retention ponds.
DPC RESPONSE:
A routine sampling program, as specified in a health and safety procedure, is in effect for LACBWR which would promptly identify any contaminating event of non-radioactive systems except for the following:
1.
The heating boiler is not presently sampled for contamination, but is being added to the program.
The sanitary was'e system is not sampled for contamination 2.
t and will not be due to only receiving toilet and rest room sink waste from outside of the restricted area.
3.
The instrument air system is not presently sampled for contamination as it' obtains its air supply from the Turbine Building atmosphere which is sampled and continuously monitored.. -. _
..)
Mr. James G.
Keppler, Regional Director LAC-7024 U.
S.
Nuclear Regulatory Commission July 11, 1980 Approval for this response to be submitted beyond the due date, was granted by Mr. Ken Baker, until July llth, to Mr. John Parkyn and Ms. Lynne Goodman of the LACBWR staff.
If you have any questions regarding this response, please let us know.
Very truly yours, DAIRYLAND POWER COOPERATIVE A0/}& b.Y
'Y/
Frank Linder, General Manager FL:GSB:af
.