ML12157A182
| ML12157A182 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 05/23/2012 |
| From: | Entergy Operations |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| GNRO-2012/00039 | |
| Download: ML12157A182 (8) | |
Text
Attachment 9 to GNRO-2012/00039 Attachment 9 to GNRO-2012/00039 Entergy Nuclear Grand Gulf Nuclear Station License Renewal Environmental Audit-Hydrology Patton -Attachment L labeled"Reporting Documentation
-Unit 2 Sumps" Attachment L Reporting Documentation
-Unit 2 Sumps GRAND GULF NUCLEAR STATION ADMINISTRATIVE PROCEDURE 01-S-06-5 jRevision:
108 Attachment IT Page 1 of 2 PAGE I OF I NRC FORM 361 U.S. NUCLEAR REGULATORY COUIM1SON 4'Z24M)l REACTOR PLANT OPMPA110ONS CENTE EVENT NOTIFICATION WORKSHEET EN 10 Z/v/ -NRC OPERATION TELEPHONE NUMBER: PRIMARY -301416-5100 or 800-532-34W.
BACK UPS -1st) or 800-449.3694%
))r -dl 3014 1S .. '-o = who maintain the1r own18ETS ms 8n3tdid lion telectone nurrtm.IFAT1KN 4 TIM FACLIOY OR OPAOATIlCN; LI M N"E OF CALJU. CALL SACK 4 Iq;',e jrSr-a4,b Ist I~ea grrk t-JeoItc -X 17 a7'Y~SuMdr TW.E E EVENT DAMT COKPk1am ThiI PCW49*J= EVENT CLASSIFICATIONS 1 -Hr. Non-..mauency 10 CFR 50.72(bi(1l I(.)(A) See SM C.yAM EAEA*,F&CY V, 4-Hr. Non-.EmEwencY 10 CPR 50.72(b 2l -(YC) C*dc dRi, , AM A.E WT AL AS l 1 TS Rmqn SO AS M (wX01 Ac odwt AMe4 UNUSU)AL RAW LI4V (W)JA) G= 0WdlP b WA AOCS (4) Ofth-c/ AMW San l .IU Ic-f (an. ne o n (.t)(M FM ACUPOn Oeum¶I..LSIOW(?17W) frh= p,) M 60-ODay Ondonal 10 CFR S0.73(a)(1I Hr. Non-Emermancv 10 CFR 5§7?21b1I31 Ii ne AtAWI APN.FR CUR VTY BIWA I oe, e C-m1n AM Other Unspectfled Requlimment (Identify) 0rO UN1A93FIFV93f. (sao Noa FROm (0) UnMwd 1 C-40-, AILIA 4 DESCRIPTION bckda 8¥awre ~ 4 unS aid 01dW n,,ai WonT cadgiL, eoffed od fw WN an .takal w plaead. d * (Com"tae an bach)On 4/28/2011 GGNS Unit 2 turbine building sump samples indicated tritium presence.The Unit 2 turbine building is an abandoned, partially constructed building.
Follow-up review and investigation confirmed that water from unit 2 turbine building sump had been pumped to the environment through installed sump pumps and piping connected between the sumps and roof drains on the unit 2 turbine building.
The release has been terminated by turning off the sump pumps located in the unit 2 turbine building.
Site procedures require notification of off-site agencies, therefore the NRC is being notified in accordance with 10CFR50.72 (b)(2)(xi).
7NOTWICATIOt4 4M PADCM WILL SAPA'rn4e UNUSUAL OR YES (xanaoo)0N grATL4p 00 j.-&..O ALL. SYSTEIM1 YE 10X~ ~abve)LOCAL FutdCTSU AS REGUIRE?7 0Th M GOV A GENCUS -uteCTE& "TE I T -.-,o0 N p~pjp3S RlE.UN1TIL COC1E 1AbTi? AEQv NRC FORMd 31 (12-200I, PNTW01*R AVVkA PAPI J:ACM SRVS\rECH PUB\REVISION\I\IS065.DOC GRAND GULF NUCLEAR STATION ADMINISTRATIVE PROCEDURE (4)01-S-06-5 Revision:
108 Attachment 11 Page 2 of 2 LQUID RXL.AMMS "GASEOU RRELEAE JUNPLANNW RE12EAMSE PLftAM-4NERS.AS
(~OI= ITINATED uom UIAOMTORE IOFFSITE RGEASE I T. S. EXCEEDED IIRM ALARMS IWE EVACUATED, 0tNNLEXPOSED OR CONTAMPOATED I OFSIlE PROTECTNO ACTMOS RECONNE im e mIi NM... No Pit~tu % T. &. LIN? -HOO QUIDS TobE Acivily 10)I T. S.F la? OO OwnS N~obale _______ 0.1 Cl/a.. low______10 Cl I Ic/f --PLAITfSTACK CONDNSEAIMR eJSCT0K MAIN STEAM LIM SO SLOWDOWN OE%~~~~u -.Lr(ffk ()J:AIM SRVS\TECHPUB\REVISION\I\1S065.COC
§ 50.72(b)(2)(xi)"Any event or situation, related to the health and safety of the public or on-site personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or: will e madedi. Such an event may include an on-site fatality or inadvertent release of radioactively contaminated materials." Provide the followinq information to the NRC: o Estimate when the leak/spill started? (Give range of dates, or is it unknown?)" Unknown o Date and time sample(s) confirmed a leak or spill (or discovery of contamination)." 4/29/11, 08:52 confirmation of a path to storm drains. Sample was collected and confirmed on 4/28/11 18:45 o Is the leak/spill/source known?* Water sample was from U2 (unfinished construction, non-functioning unit)Turbine Bid Sump. This location is inside the Protected Area. Source unknown.o Is this an on-going leak or has the leak source been terminated?
- Leak was terminated on 4/28/11, prior to confirming water flow path to storm drain.o Radionuclide concentrations in spill/leak source or origin of the contamination.
- Origin is the U2 Turbine Bid Sumps, 87' elevation.
106,400 pCi/L Tritium in East sump, 100,259 pCi/L Tritium in West sump o Estimated leak rate?" Unknown, temporary pump was in auto.o Has any radioactive material from this spill/leak/event reached the unrestricted area?
- These sumps pump to storm drains, which flow to Outfall 007 which is sampled monthly. There have been no Outfall 007 sample results that have met reportability thresholds in the last 2 years.o What is the estimated volume of plume and curie content of plume?" N/A, this was a liquid flow path o Radionuclide concentrations in environmental soil and water samples.* Outfall 007 Sample results December 16, 2010: 723 pCi/L Tritium (error:+/-186.09 pCi/L Tritium)o Does the spill/leak affect ground water, drinking water, or surface water? (Address each one)." Currently there is no spill/leak so there is no effect on ground water, drinking water, or surface water o Could the spill/leak affect ground water, drinking water, or surface water or is the spill/leak likely to affect ground water, drinking water, or surface water?* Outfall 007 discharges to the Mississippi River so ground water and drinking water could potentially be affected.
Surface water will not be affected.o Are there monitoring wells down gradient?
Activity in down gradient wells?" Yes there are monitoring wells down gradient.
They have tested positive for Tritium but results were below reportable levels. This information is being gathered.o List the distance from the spill/leak to the site boundary/unrestricted area (1) in direction of travel, and (2) nearest boundary.Approximately 700 m (2) to nearest boundary, the direction of travel (1) is further.o What is the rate of groundwater movement in the area (e.g., meters per year)?* This information is being gathered.o Estimate of when contaminants will reach the site boundary/unrestricted area.
- The leak/spill has been terminated, so this would have potentially happened in the past.o Estimated contaminant concentrations at time when contaminants reach the site boundary.
At very least, provide (bounding) estimate of future contaminant concentrations at site boundary relative to 10 CFR 50 Appendix I design objectives.
Highest result for a groundwater monitoring well sample was 11,600 pCVI on March 2, 2011.o Are the radionuclide concentrations expected to be below the 10 CFR 20 Appendix B, Table 2 values once the plume reaches the unrestricted area?This information is being gathered but there have been no results above reportable limits.o What is the calculated dose to a hypothetical member of the public at the source of the leak/spill if the affected water (ground, drinking, or surface) was a drinking water source. (Calculate this value even if the affected water is not a source of drinking water.) Use any valid method or use a conservatively bounding estimate (e.g., for tritium use the proportionality that 4 mrem annual is equivalent to 20,000 pCi/I annual average concentration.)
Unknown at this time. Based on the last sample of Outfall 007, the calculated dose would be 0.144mrem annual equivalent.
o What is the calculated dose to a hypothetical member of the public at the site boundary if the affected water (ground, drinking, or surface) at the site boundary was a drinking water source.(Calculate this value even if the affected water is not a source of drinking water.) Use any valid method or use a conservatively bounding estimate (e.g., for tritium use the proportionality that 4 mrem annual is equivalent to 20,000 pCi/I annual average concentration.)
Unknown at this time.o Does the utility plan any remediation or cleanup activities at the current time?Information is being gathered and a decision will be made.
Notifications made for H3.txt From: Perino, christina Sent: Friday, April 29, 2011 4:08 PM TO: RICHEY, MARTY L; Perito, Michael; BROWNING, JEREMY G CC: SCARBROUGH, RICHARD A; TRICHELL, WILLIAM T; EHRHARDT, KARL F; Ford, Bryan
Subject:
Notifications made for H3 Contacts made for NEI 07-07 industry ground water protection initiative, via EN-RP-113 Jimmy Carson at Mississippi State Dept of Radiological Health Jimmy crellin at MDEQ was not interested in the notification.
He stated they did not deal in radiology and said MS State Dept of Rad Health was the right notification to make. He took my contact info and called me back. said he didn't find anyone interested but we could send an email to the head of pollution control.I will follow up with him.Gary uricchio at ANI NEI email address per EN-RP-113:
GWNotice@NEI.org NRC 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> notification All required notifications made within requirements Christina Sent from my iPad Page 1