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| {{Adams
| | #REDIRECT [[05000267/LER-1981-036-01, Tritium Concentration in Unrestricted Area Following Release 460 Exceeded Limit. Caused by Inadequate Design of Liquid Radwaste Sys.Change Notice 1433 Issued]] |
| | number = ML20004D578
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| | issue date = 05/27/1981
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| | title = /01T-0:on 810512,liquid Waste Discharge Exceeded Specified Limit for Tritium Concentration.Caused by Design Deficiency.Downstream of Valve HV 6212,150-200 Gallon Dead Leg Released Regardless of Dilution Flow Adequacy
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| | author name = Gahm J
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| | author affiliation = PUBLIC SERVICE CO. OF COLORADO
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
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| | docket = 05000267
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| | license number =
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| | contact person =
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| | document report number = LER-81-036-01T, LER-81-36-1T, NUDOCS 8106090547
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| | package number = ML20004D553
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 1
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| }}
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| {{LER
| |
| | Title = /01T-0:on 810512,liquid Waste Discharge Exceeded Specified Limit for Tritium Concentration.Caused by Design Deficiency.Downstream of Valve HV 6212,150-200 Gallon Dead Leg Released Regardless of Dilution Flow Adequacy
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| | Plant =
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| | Reporting criterion =
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| | Power level =
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| | Mode =
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| | Docket = 05000267
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| | LER year = 1981
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| | LER number = 36
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| | LER revision = 1
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| | Event date =
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| | Report date =
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| | ENS =
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| | abstract =
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| }}
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| | |
| =text=
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| {{#Wiki_filter:_ _
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| 8 60 51 OoCKET NUMsER 85 69 EVENT OATE 74 75 REPORT DATE 80
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| EVENT DESCRIPTION AND PROO A8LE CONSEQUENCES h IOI21l n Thursday, May 14, 1981, at 1300 hours it was determined that the concentration l
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| ITTT'l I of tritium in an unrestricted area following liquid waste release number 460, which l
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| I 1o141Iwas made on May 12, 1981, exceeded the limit specified in LCO 4.8.2(a).
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| Reportable i
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| 1 ITTT1 I per Fort St. Vrain Technical Specification AC 7.5.2(a)2.
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| No accompanying occurrence. l l 0 l6 g l Reportable occurrences RO 80-52, 80-67, and 81-013 deal with a related subject area.
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| 9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LER EVENT YE AR REPORT NO.
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| COOE TYPE N O.
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| so 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h j
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| l i t a l IThe' design of the Fort St. Vrain licuid waste discharte system is inadequate to avoid I f
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| I m Iproblems arising from a 150-200 gallon dead leg downstream of automatic valve HV 6212 I iii7j lwhich is released regardless of dilution flow adequacy.
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| Reliability of dilution flow I g l and possibility of relocating automatic valve closure capability upon inadequate I
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| ii i4i l dilution flow being investigated.
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| Final resolution to be submitted in a supplemental l 7
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| s 9 report.
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| so ST
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| % POWER OTHER STATUS SIS O RY DISCOVERY DESCRIPTlCN
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| l Liquid waste discharge piping to river l
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| PERSONNEL EXPOS ES I
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| NUMBER TYPE
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| ==DESCRIPTION==
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| f PERSONNE L INJU IES NUMBER
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| ==DESCRIPTION==
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| li j a l l O l 0 l 0 l@l N/A l
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| 7 8 9 11 12
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| ' 80 LOSS OF OR OAMAGE To FACILITY /2 TYPE
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| ==DESCRIPTION==
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| (303) 785-2224 PHONE:
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| }}
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| {{LER-Nav}}
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