ML19305A740
| ML19305A740 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 01/24/1980 |
| From: | Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Eric Turner HOUSTON LIGHTING & POWER CO. |
| Shared Package | |
| ML19305A741 | List: |
| References | |
| NUDOCS 8002130132 | |
| Download: ML19305A740 (2) | |
See also: IR 05000498/1979015
Text
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGloN IV
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611 RY AN PLAZA DRIVE, SUITE 1000
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ARLINGTON, TEXAS 76012
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January 24, 1980
In Reply Refer To:
RIV
Docket No. 50-498/Rpt. 79-15
50-499/Rpt. 79-15
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Houston Lighting and Power Company
ATTN:
Mr. E. A. Turner, Vice President
Power Plant Construction and
Technical Services
Post Office Box 1700
Houston,. Texas
77001
Gentlemen:
Thank you for your letter of November 13, 1979, in response to our letter
dated October 19, 1979, and the attached Notice of Violation.
As a result
of our review, we find that additional information is required.
Your response fails to address measures that have or will be taken to assure
compliance with concrete consolidation procedures.
Your response states that the improper vibration, referenced by the Resident
Reactor Inspector (RRI) in IE Report 79-15, actually involved leveling of
"as placed" concrete prior to the process of consolidation of the concrete
by vibration.
The RRI does not concur with this position and states that
the area where the improper consolidation was observed was level at the time
the improper vibration was observed by the RRI and the accompanying Brown &
Root (B&R) roving QC inspector.
Inasmuch as the area was already level, the
RRI maintains that the observed vibrator operations could not have been
performed for the purpose of leveling "high spots" as allowed by ACI 309-72.
The RRI also states that the B&R QC inspector acknowledged the improper vibra-
tion and went immediately to the vibrator crew foreman and requested that the
subject area be revibrated.
The area was then revibrated.
The RRI did not
suggest or request that the area be revibrated, however, this on-the-spot
corrective action was appropriate.
We do not concur with your position that this item of noncompliance was the
result of misunderstandings or over reactions.
8002180 \\
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Houston Lighting and Power
Company
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January 24, 1980
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You are requested to provide, within 20 days of the receipt of dhis letter,
additional information related to this matter including: (1) corrective steps
which have been taken to assure proper vibration of concrete and the results
achieved; (2) corrective steps which will be taken to avoid further noncom-
i
pliance; and (3) the date when full compliance will be achieved.
'
Should you have any questions concerning this matter, we will be pleased to
discuss them with you.
Sincerely,
^
,
W.C.Seihh, Chief
Reactor CoMtruction and
,
Engineering Support Branch
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