ML062200308
| ML062200308 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 09/28/2006 |
| From: | Richard Ennis, Spaulding D NRC/NRR/ADRO/DORL/LPLIII-1 |
| To: | Vanmiddlesworth G Nuclear Management Co |
| D. Spaulding LPL3-1 X2928 | |
| References | |
| TAC MD1844 | |
| Download: ML062200308 (4) | |
Text
September 28, 2006 Mr. Gary Van Middlesworth Vice President Duane Arnold Energy Center 3277 DAEC Road Palo, Iowa 52324-9785
SUBJECT:
DUANE ARNOLD ENERGY CENTER - REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE REQUEST FOR RELIEF CONCERNING FLOW MEASUREMENT FOR THE STANDBY LIQUID CONTROL PUMPS (TAC NO. MD1844)
Dear Mr. Van Middlesworth:
Your letter of May 8, 2006, submitted a request for relief concerning flow measurement for the standby liquid control pumps. We are reviewing this information, and find that additional information is needed as shown in the enclosed request for additional information (RAI). A telephone conference call was held on July 25, 2006, to discuss this RAI. Deirdre Spaulding, former Project Manager, spoke with Tony Browning of your organization on August 10, 2006, and he agreed to respond within 30 days of receipt of this RAI. If you have any questions, please contact Karl Feintuch at (301) 415-3079.
Sincerely,
/RA/
Richard B. Ennis, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-331
Enclosure:
As stated cc w/encl: See next page
Mr. Gary Van Middlesworth September 28, 2006 Vice President Duane Arnold Energy Center 3277 DAEC Road Palo, Iowa 52324-9785
SUBJECT:
DUANE ARNOLD ENERGY CENTER - REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE REQUEST FOR RELIEF CONCERNING FLOW MEASUREMENT FOR THE STANDBY LIQUID CONTROL PUMPS (TAC NO. MD1844)
Dear Mr. Van Middlesworth:
Your letter of May 8, 2006, submitted a request for relief concerning flow measurement for the standby liquid control pumps. We are reviewing this information, and find that additional information is needed as shown in the enclosed request for additional information (RAI). A telephone conference call was held on July 25, 2006, to discuss this RAI. Deirdre Spaulding, former Project Manager, spoke with Tony Browning of your organization on August 10, 2006, and he agreed to respond within 30 days of receipt of this RAI. If you have any questions, please contact Karl Feintuch at (301) 415-3079.
Sincerely,
/RA/
Richard B. Ennis, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-331
Enclosure:
As stated cc w/encl: See next page DISTRIBUTION:
PUBLIC LPL3-1 R/F RidsNrrPMREnnis RidsNrrLATHarris RidsNrrDorlLple RidsOgcRp RidsAcrsAcnwMailCenter RidsRgn3MailCenter RidsNrrDorlDpr TLiu YWong KFeintuch ADAMS Accession Number: ML062200308 OFFICE NRR/LPL3-1/PM NRR/LPL3-1/PM NRR/LPL3-1/LA NRR/LPL3-1/(A)BC NAME KFeintuch REnnis:ca THarris MMurphy DATE 09/21/06 09/21/06 09/21/06 09/28/06 OFFICIAL RECORD COPY
ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE FLOW MEASUREMENT FOR THE STANDBY LIQUID CONTROL PUMPS DUANE ARNOLD ENERGY CENTER DOCKET NO. 50-331 1.
Please provide isometric diagram of the standby liquid control (SBLC) System including details such as the length of piping and system components.
2.
The licensee stated that portable ultra-sonic flow meters were installed on the common SBLC pump discharge piping to determine the practicality of using later technology ultra-sonic flow meters to measure flow. The flow meter transducers were installed at three different locations on the discharge piping. However, each location resulted in significantly different measured flow rates compared to the other locations and the test tank level method. Please provide the data on the measured flow rates at different locations using the ultra-sonic flow meters and compare them to those using the test tank level method.
3.
Paragraph ISTB-3510(a) of the American Society of Mechanical Engineers Operation and Maintenance Code specifies that the flow rate determination shall be accurate to within +/-2 percent actual. Please provide the flow rate determination methodology that meets this Code requirement. Also, include the correlation curve conversion from test tank level to water volume.
Duane Arnold Energy Center cc:
Mr. J. A. Stall Senior Nice President, Nuclear and Chief Nuclear Officer Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 Mr. M. S. Ross Managing Attorney Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 Mr. R. E. Helfrich Senior Attorney Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 Mr. W. E. Webster Vice President, Nuclear Operations Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 John Bjorseth Site Director Duane Arnold Energy Center 3277 DAEC Road Palo, IA 52324 Steven R. Catron Manager, Regulatory Affairs Duane Arnold Energy Center 3277 DAEC Road Palo, IA 52324 U. S. Nuclear Regulatory Commission Resident Inspectors Office Rural Route #1 Palo, IA 52324 Regional Administrator, Region III U.S. Nuclear Regulatory Commission Suite 210 2443 Warrenville Road Lisle, IL 60532-4351 Mr. M. Warner Vice President, Nuclear Operations Support Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 Mr. D. A. Curtland Plant Manager Duane Arnold Energy Center 3277 DAEC Rd.
Palo, IA 52324-9785 Mr. R. S. Kundalkar Vice President, Nuclear Engineering Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 Daniel McGhee Utilities Division Iowa Department of Commerce Lucas Office Buildings, 5th Floor Des Moines, IA 50319 Chairman, Linn County Board of Supervisors 930 1st Street SW Cedar Rapids, IA 52404