ML19206A794
| ML19206A794 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/18/1978 |
| From: | Herbein J Metropolitan Edison Co |
| To: | Grier B NRC Office of Inspection & Enforcement (IE Region I) |
| References | |
| GQL-0369, GQL-369, NUDOCS 7904210407 | |
| Download: ML19206A794 (4) | |
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METROPOLITAN E ISON COMPANY nssicecr rum m.c
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Date Met-Ed became aware of ?!cncerniance:
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Febr:ary 20, 1975 III. Descrittien cf :!cncentliance:
Cn Febr y 9 and 10, sa:ples taken fr:= the Industrial Waste Filter Systes (IiiFS) su=p indicated levels of TSS and pli of h76 =g/l and 9 5 and 297 cg/l a a..o.c'
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To relieve the high CSS situatien the s=p pu=p vas raised to allow for more settling capacity.in the surp until it eculd be pu= ped clean. The su=p.vas cleaned en 2-13-73.
As stated in cu* l-26-73 re. cort to Mr. Eacsersug, we an-ticipate initiating a new interi: trea::ent systen this veek, which if successful,
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METROPOLITAN EDISON COMPANY 2...
OST CFFICE SOX 542 REAO!NG.PENNSYLVANI A 19503 TELEPHCNE 215 - 9:3 3Sc1 Februa.ry 17, 1978 G^L 0230 Envirennental Prctectica Agency D.e3.Jan TT*
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Dear !.'r. Wassersug:
"hree Mile Island Nuclear Statien (TIC)
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C0C9920 In accordance with Special Ccnditica Nine (9) of the above referenced pe._.it the folleving is an explanatics of a =alranctica which occurred at T:C.
Cn February 10, 1978, the pH cf the Industrial Waste Treat =ent Syste: (I'CS) at TMI was 5 95 fer a;;rexi=ately ten (1C) inutes. During this period, a;-
prcxiestely 1000 gallens of vastevater was discherged.
Tne cause of the pH ire;;ing belev the per=it li=itatica of 6.0 was a nalfunctica cf the pH centroller which inecrrectly indicated a need for acid addition in the treatment precess.
Fu-ther the pH trip valve aise failed to shutdevn the syste.
vhen a pH cf 6.0 vas reachel.
?clieving disecve-/ cf the calfunction, station personnel repaired the pH centrcller and reset the trip points to insure system shutdevn at c<pH>9 If ycu shculd have any questions rega-ding this =atter, please centact Mr. G.
"hc=psen of cur licensing Staff.
Sincerely, 0-t..ai Sig.e:: hy
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!.'.anager-Generatica cuality Assurance Cw~.'
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It. Terry Fabian (??.EEF.)
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