View source for 05000267/LER-1981-036-01, /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

{{Adams
| number = ML20004D578
| issue date = 05/27/1981
| 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
| author name = Gahm J
| author affiliation = PUBLIC SERVICE CO. OF COLORADO
| addressee name = 
| addressee affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION IV)
| docket = 05000267
| license number = 
| contact person = 
| document report number = LER-81-036-01T, LER-81-36-1T, NUDOCS 8106090547
| package number = ML20004D553
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 1
}}
{{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
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000267
| LER year = 1981
| LER number = 36
| LER revision = 1
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

=text=
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LICENSEE EVENT REPORT i
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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
I 1o141Iwas made on May 12, 1981, exceeded the limit specified in LCO 4.8.2(a).
Reportable i
1 ITTT1 I per Fort St. Vrain Technical Specification AC 7.5.2(a)2.
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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SOEE CO$E Susci$E COMPONENT CODE SUS DE S
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9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LER EVENT YE AR REPORT NO.
COOE TYPE N O.
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K N AC C O P NT MET MoVRS 22 58 i POR B.
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so 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h j
l i t a l IThe' design of the Fort St. Vrain licuid waste discharte system is inadequate to avoid I f
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.
Reliability of dilution flow I g l and possibility of relocating automatic valve closure capability upon inadequate I
ii i4i l dilution flow being investigated.
Final resolution to be submitted in a supplemental l 7
s 9 report.
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% POWER OTHER STATUS SIS O RY DISCOVERY DESCRIPTlCN
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ACTIVITY CO TENT RELEASEO OP RELEASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE I
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l Liquid waste discharge piping to river l
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PERSONNEL EXPOS ES I
NUMBER TYPE

==DESCRIPTION==
li 171 l o l 0 l 01@l Z l@l N/A l
f PERSONNE L INJU IES NUMBER

==DESCRIPTION==
li j a l l O l 0 l 0 l@l N/A l
7 8 9 11 12
' 80 LOSS OF OR OAMAGE To FACILITY /2 TYPE

==DESCRIPTION==
U 11191 l Z @l N/A l
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l l l l l l 1 l l ! ! l l :2 i
I NAME de PREPARER p
(303) 785-2224 PHONE:
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}}

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