ML19326A114
| ML19326A114 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 11/05/1971 |
| From: | Grier B US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Sampson G TOLEDO EDISON CO. |
| Shared Package | |
| ML19326A100 | List: |
| References | |
| NUDOCS 8001310674 | |
| Download: ML19326A114 (4) | |
Text
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B, 3nderson. CO (5) i w
uni TED STATES i
[N ATOMIC ENERGY COMMISSION i
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GLEN ELLYN, ILLINOIS 60137 November 5, 1971 Tblade Edison Campany Docket No. 56 346 ATER: k. Claset J. Samposa j
b T)00RO hD Pies President, Poeur 19 420 Madissa Avemme 1.
. 01 Quatlamma 1his refers to the inspection conducted by Meeers. Hayes, Jones, and Bobrbacher of this office on October 13 - 15, 1971, of construction activities at the Davis-Besse constreettom site autherised by AEC constreetism 7mmait No. CPft.80 and to the diaeamanians of our findings at the constmetam of the inspecties with you and Hoests. Bos, undauerth Immardssa, and othere of your staff.
Areas====8==d during the inspoetten included concrete placement practices, sampling laestian for pumped camarote strength cylindnes, Class 1 valve desige verificattaa, the zeester skis 1d building well plushness, esserete straagth cylinder coring practices, fabriestkom of the spent fusi past itaar, the centstammat vessel support structures and QC systsam for the contai=====* wesel fabrisatics, sicsetrical installatism, and class I piping. Within these areas, the inspectism commissed of selective emmedmation of peseedures and representative reeneds, intervisum with plant perssemet, and obearvations by the imspectors.
The inspectors====*a=d setten you have taham with respect to the items identified in year letter of September 22, 1971, relating to mattere pseviamely broudit to year attentism. Based on our esamimetina of these metters, we have me foreher quantiamo at this time.-
During the current inspeetism, it wee found that one of your activities appears to be is namesmpliance with 10 CFR 50, Appendia B, and another is namea=*=rmsese with statammets in the Prelimimary Safety Analysis Esport. 1he items and references to the partiment requirements are listed in the enclosuus to this letter. Flesse provide as in writing, within 30 days, with your commenta concerning these items, any steps tdiich have been or will be takom to correct them, any steps that have been or will be tahan to prevent reentrance, and the date all corrective 0 hD 31 8001 1 4883 a
2slede Edison campany Neversber 5,1971 estiam er preventive measures were er will be esupleted. Your reply should + =4==, la per**=Ime, say syyneyriste eheogos that beve been er will be unds to joyeeve the effectivammes of your que11ty esaurense program.
With negoed to geestiene satsed during *he immyostism, we understand that yes intend te (1) entain amei-1 infeemeties, for review by ear immyester, semeessing verifiaatima that Class I valve body esetinge have been measused to verify that solemlattamel and desige requirements have been met and (2) that you will inslade shield taalding us11 p1h toleresse disewayamates, i.e., "se-kmalt" infomancies, in the Finet Safety Analyste Beyers. Ger inspestor M 11 enemino your astian en those metters daring future immyestiano.
esmeessing this immyestian, we stil be 3 sd 1
If you have any,
to dissues them with yes.
t Simeonely years.
Boyee B. Grier Begional Direster 4
Emelsesse:
Beseriptism of Itene of Menesey11ameo and h h a sa L. E. Bee, Project Engineer N. L. Modeserth, General n
n n seperia**
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wi.i J J. A. Issardson, @ Engineer u
bec: J. B. Henderson, CO (5)
A. Giambusso, CO L. Kornblith, C0 R. H. Engelken, CO DR Central Files
35C10EEE Docket No. 050-346 Certain activities under your construction petuit appear to be in monunifemesses with statements in the PSAR or in noncosy11ames with 10 CFR 50, Appendia 3, as identified below.
1.
The Prettsuimary Safety Aos1ysis Bayert, Section 5, Forsgraph 5.2.2.4.1, states, in part "All concrete work will be in aseesdasee with ACI-318-63, 'hming Code Requirements for Iainforced Concrete' and ACE-301, ' Specifications for Structural Conerate for Emildings.'... " ACI Standard 301, l
Qnapter 16, Statiog Forsgraph 1602, Testing Services, states in regard to strength tests ser concrete that... '% hen paging er pacemotis equipment is mand, samples shall be takse ae the dansharge end."
Centrary to the abees, strength samples for pomped concrete were being takaa at the batch plant rather them at the peep discharge.
2.
10 CFR 50, appendia 3, Sectica Y, states in part, that "Astivities affecting quality shall be prescribed by doctassated j
tastructions, precedores, or drawings of a typ4 appropriate to the cireemetmaces and shall be acesoplished in accordance with these imatruscians, procedures, or drawings."
Castrary to the abows, decionanced instructions were mod followed durius the plassment of concrete under the contatsmient vessel (Pear Ee. 397). Concrete usa depeetted on the uyossd side of a sleptag form and wee allenod, or comand to flee, well ta excess of the five-feet limit imposed by Bechtel's Specification No.
7749-C.-26&, Paragraph 8.7.
Meresser, vibrators were cheerved being used in a mammer insensistemt with the r-h-tians of ACE-614, that is, surface herimental applicatiana which comid lead to escessive segresstian of comerste.
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V N" DIVISICII 0F COMPLINICE MOIITHLY REPORT FOR OCTOBER 1971 o
Toledo Edison Company (Davis-Besse) - A CO inspection was conducted on October 13-15 The inspection included a review of the QC system, QC records, and observation of work concerning the concre*e quality for Class I structures.
One item of apparent nonconformance was identified concerning sampling of pumped con-ps crete.
This item is being evaluated for possible enforcement
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action.
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