L-2011-397, Unusual or Important Environmental Event - Reportable Fish Kill
Letter Sequence Request | |
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TAC:ME5091, (Approved, Closed) | |
Initiation Administration | |
MONTHYEARL-2010-302, License Amendment Request for Extended Power Uprate2010-12-15015 December 2010
[Table View]License Amendment Request for Extended Power Uprate Project stage: Request ML1107302822011-02-25025 February 2011 St. Lucie, Unit 2 - License Amendment Request for Extended Power Uprate, Attachment 2; Supplemental Environmental Report Project stage: Supplement ML1105906632011-03-0909 March 2011 Acceptance for Review of License Amendment Request for Extended Power Uprate Project stage: Acceptance Review ML1110100982011-04-19019 April 2011 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI NRC-2011-0128, St. Lucie, Unit 1 - Notice of Consideration of Issuance of Amendment to Facility Operating License, and Opportunity for a Hearing and Order Imposing Procedures for Documents Access to Sensitive Unclassified Nonsafeguards Information2011-06-0202 June 2011 St. Lucie, Unit 1 - Notice of Consideration of Issuance of Amendment to Facility Operating License, and Opportunity for a Hearing and Order Imposing Procedures for Documents Access to Sensitive Unclassified Nonsafeguards Information Project stage: Approval ML11119A0852011-06-0202 June 2011 Notice of Consideration of Issuance of Amendment to Facility Operating License, and Opportunity for a Hearing and Order Imposing Procedures for Documents Access to Sensitive Unclassified Nonsafeguards Information Project stage: Other ML11119A0842011-06-0808 June 2011 Transmittal Letter - Notice of Consideration of Issuance of Amendment to Facility Operating License and Opportunity for a Hearing and Order Imposing Procedures for Document Access to Sensitive Unclassified Non Safeguards Information Project stage: Other ML12037A1472011-07-21021 July 2011 NRR E-mail Capture - Efh Species for St. Lucie Project stage: Request ML1123602302011-09-0202 September 2011 Request for Concurrence on List of Species with Essential Fish Habitat in the Vicinity of the St. Lucie Plant, Units 1 and 2 Project stage: Other L-2011-397, Unusual or Important Environmental Event - Reportable Fish Kill2011-09-20020 September 2011 Unusual or Important Environmental Event - Reportable Fish Kill Project stage: Request L-2011-410, Environmental Protection Plan Report 316(b) Related Documentation2011-09-30030 September 2011 Environmental Protection Plan Report 316(b) Related Documentation Project stage: Request L-2011-450, Submittal of Final Revised Industrial Wastewater Facility Permit No. FL0002208, and Environmental Protection Plan Report2011-10-20020 October 2011 Submittal of Final Revised Industrial Wastewater Facility Permit No. FL0002208, and Environmental Protection Plan Report Project stage: Request ML11332A0202011-12-28028 December 2011 Transmittal Letter - Draft Environmental Assessment and Draft Finding of No Significant Impact Related to the Proposed Extended Power Uprate Project stage: Draft Other ML11332A0212011-12-28028 December 2011 Federal Register Notice - Draft Environmental Assessment and Draft Finding of No Significant Impact Related to the Proposed Extended Power Uprate Project stage: Request L-2012-043, Comment (1) of Richard L. 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Johnson Opposing Ncr Permit Approval for St. Lucie 1 & 2 Project stage: Request ML12053A3452012-03-20020 March 2012 Request to Initiate Abbreviated Efh Consultation for Proposed Extended Power Uprate at St. Lucie Plant, Units 1 and 2 Project stage: Other L-2012-079, Supplemental Information for Extended Power Uprate License Amendment Request (LAR) Sections 2.1.7 (Protective Coating Systems) and 2.8.7.2 (Natural Circulation Cooldown)2012-03-22022 March 2012 Supplemental Information for Extended Power Uprate License Amendment Request (LAR) Sections 2.1.7 (Protective Coating Systems) and 2.8.7.2 (Natural Circulation Cooldown) Project stage: Supplement L-2012-199, Response to Request for Additional Information on Draft Environment Assessment and Draft Finding of No Significant Impact Related to the Proposed Extended Power Uprate2012-05-0202 May 2012 Response to Request for Additional Information on Draft Environment Assessment and Draft Finding of No Significant Impact Related to the Proposed Extended Power Uprate Project stage: Draft Response to RAI ML12132A0672012-05-0202 May 2012 NRR E-mail Capture - FW: St. Lucie Unit 1 and 2 EPU - Draft EA RAI Responses Project stage: Draft RAI ML12144A0082012-05-21021 May 2012 NRR E-mail Capture - FW: NRC St Lucie Plant; NMFS Comments Project stage: Request ML12144A3162012-05-23023 May 2012 NRR E-mail Capture - Federal Consistency Review Regarding the Czma Project stage: Request ML12165A5122012-06-25025 June 2012 Federal Register - Environmental Assessment and Finding of No Significant Impact Related to the Proposed Extended Power Uprate Project stage: Request ML12165A5112012-06-25025 June 2012 Environmental Assessment and Finding of No Significant Impact Related to the Proposed Extended Power Uprate Project stage: Acceptance Review ML12191A2362012-07-0909 July 2012 Technical Specification Pages Project stage: Acceptance Review ML12156A2082012-07-0909 July 2012 Issuance of Amendment Regarding Extended Power Uprate Project stage: Approval ML12181A0192012-07-0909 July 2012 Issuance of Amendment Regarding Extended Power Uprate (Redacted) Project stage: Approval ML12194A2872012-07-12012 July 2012 Correction to Amendment No. 213 Regarding Extended Power Uprate Project stage: Other ML12195A1682012-07-13013 July 2012 Letters to H. Mueller, A. Hubbard, and S. Norton Re Environmental Assessment and Finding of No Significant Impact Related to Proposed Extended Power Uprate Project stage: Acceptance Review L-2012-309, FPL Review Comments on Extended Power Uprate Safety Evaluation2012-08-0707 August 2012 FPL Review Comments on Extended Power Uprate Safety Evaluation Project stage: Other L-2012-382, Extended Power Uprate Cycle 24 Startup Report2012-10-19019 October 2012 Extended Power Uprate Cycle 24 Startup Report Project stage: Other 2012-01-30 |
ML11270A098 | |
Person / Time | |
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Site: | Saint Lucie |
Issue date: | 09/20/2011 |
From: | Katzman E Florida Power & Light Co |
To: | Document Control Desk, Office of Nuclear Reactor Regulation |
References | |
L-2011-397 | |
Download: ML11270A098 (3) | |
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0 Florida Power & Light Company, 6501 S. Ocean Drive, Jensen Beach, FL 34957 September 20, 2011 FPL L-2011-397 10 CFR 50.4 10 CFR 50.36b EPP 4.1 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 RE: St. Lucie Units 1 and 2 Docket No. 50-335 and 50-389 Environmental Protection Plan Report Event Date: August 22, 2011 Unusual or Important Environmental Event - Reportable Fish Kill The attached report is being submitted pursuant to the requirements of Section 4.1 of the St.
Lucie Units I and 2 Environmental Protection Plans to provide the description of a reportable unusual fish kill event.
Sincerely, Eric S. Katzman Licensing Manager St. Lucie Plant ESK/kdr Attachment
,-Ija an FPL Group company
St. Lucie Units I and 2 L-2011-397 Docket No. 50-335 and 50-389 Attachment Environmental Protection Plan Report Page 1 of 2 Unusual or Important Environmental Event - Reportable Fish Kill DESCRIPTION OF THE EVENT The St. Lucie Plant experienced a massive intrusion of moon jellyfish (Aurielia aurita) in the St. Lucie Plant intake cooling water canal. The event commenced on August 20, 2011, and terminated on August 24, 2011.
The St. Lucie Plant intake cooling water pipes are approximately 1,600 feet in length. As sea water traverses the intake pipes it becomes quite turbulent and reaches a flow rate of 6.8 feet/second. During that turbulent journey the jellyfishes' stinging nematocysts are broken off and are then released into the water column. The heavy concentration of moon jellyfish and corresponding nematocysts in the water column finally reached a lethal concentration on August 22, 2011. These conditions were responsible for the mortality of an estimated 10,000 pounds of fish in a 24-hour period.
CAUSE OF THE EVENT The fish in the intake cooling canal are in a confined area, and thus, could not escape the nematocysts in the water column. As the nematocysts accumulated on their gills the stinging action caused gross swelling which resulted in suffocation.
CORRECTIVE ACTION Fish removal activities started immediately and lasted for approximately 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />. The peak concentration of moon jellyfish that caused the mortality lasted less than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. At the beginning of the event staff biologists were able to rescue ten goliath groupers (Epinephelus itajara), one nurse shark (Ginglymostoma cirraturm), and 8 snappers (Lutjanidae) until they had to cease rescue activities due to the stinging effect of the nematocysts.
ACTIONS TO PRECLUDE FUTURE EVENTS The entrainment of moon jellyfish is a natural event that occurs on a yearly cycle at St. Lucie Plant. Rarely do the moon jellyfish arrive in high enough numbers to produce these effects.
Compensatory actions are to minimize the high fish mortality by the St. Lucie Fish Removal campaign to keep the entrained fish population as low as possible.
St. Lucie Units 1 and 2 L-2011-397 Docket No. 50-335 and 50-389 Attachment Environmental Protection Plan Report Page 2 of 2 Unusual or Important Environmental Event - Reportable Fish Kill AGENCIES NOTIFIED The Florida Fish and Wildlife Conservation Commission was notified of this event on August 22, 2011, in accordance with Site Environmental Protection Plan.
A notification was made to the U.S. Nuclear Regulatory Commission on August 22, 2011 per requirement of 10 CFR 50.72(b)(2)(xi).
cc: Mr. Michael Halpin - FDEP