ML17227A802

NPDES Noncompliance Notification:Sea Turtle Captures in Intake Canal Increased Dramatically Beginning in Fall 1992. During First Quarter 1993,165 Turtles Removed from Canal. Mods to Ocean Intake Velocity Caps Completed in Feb 1992

ML17227A802
Person / Time
Site:	Saint Lucie
Issue date:	04/14/1993
From:	Sager D FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-92-98, NUDOCS 9304190215
Download: ML17227A802 (11)

Text

ACCELERATED DOCUMENT DIST BUTION SYSTE1Vl REGULRTO INFORMRTION DISTRIBUTION .STEM (RIDE)

ACCESSION NBR:9304190215 DOC.DATE: 93/04/14 NOTARIZED: NO DOCKET FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power 6 Light Co. 05000335 50-389 St. Lucie Plant, Unit 2, Florida Power & Light Co. 05000389 AUTH. NAME AUTHOR AFFILIATION SAGER,D.A. Florida Power & Light Co.

RECXP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

NPDES noncompliance notification:sea turtle captures in intake canal increased dramatically beginning in Fall 1992.

During First Quarter 1993,165 turtles removed from canal. D, Nods to ocean intake velocity caps completed in Feb 1992.

DISTRXBUTXON CODE: IE23D COPIES RECEIVED:LTR ENCL SIZE:

TITLE:. Environmental Event Report (per Tech Specs)

NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA 3 3 PD2-2 PD 1 1 1 1 NORRISFJ'NTERNAL:

ACRS 5 5 NRR/DRSS/PEPB 1 1 NR+R PMAS/ILRB 1 1 OGC/HDS3 1 1 REG F 01 1 1 RGN2 1 1 EXTERNAL: NRC PDR 1 1 NSIC 1 1

.S NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACI'IIE DOCUMENT CONTROL DI".bV, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTR!HUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 17 ENCL ,, 17

P.O. Box 12B, Ft. Pierce, FL 34954-012B April 14, 1993 L-93-98 10 CFR 50.36 EPP 4.1 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Re: St. Lucie Units 1 and 2 Docket Nos. 50-335 and 50-389 Increase in Turtle Entrapment in the St. Lucie Intake Canal The attached report is being sent pursuant to Section 4.1 of the St. Lucie Unit 1 and Unit 2 Environmental Protection Plan.

Should there be any questions on this information, please contact us ~

Ve truly yours, D. A..S er Vice Pr ident St. Lu i Plant DAS:JJB kw cc: Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant Attachments DAS/PSL N 897-93 9304i902i5 9304gg',

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INCREASED TURTLE ENTRAPMENT IN ST LUCIE INTAKE CANAL EVENT DESCRIPTION Sea turtle captures in the St. Lucie Plant intake canal have dramatically increased over the past several months. Data indicates an increase beginning the fall of 1992 (see attached table). .During the first quarter of 1993, 165 turtles were'emoved from the canal, including four Leatherbacks weighing over 300 pounds each. This first quarter total represents 88% of the total capture in 1992 and 136% of the total for 1991.

All turtles captured were tagged and released by Applied Biology, Inc., a contractor for Florida Power & Light (FPRL). Applied Biology, Inc., and FP6L hold the necessary state permits to conduct.

sea turtle monitoring activities at the St. Lucie Plant.

As prior experience indicates, the intake canal samples the turtle population of the coastal waters off Hutchinson Island at a fixed and independent rate. Thus, any increase in the number of turtles captured in the canal is indicative of a larger population in the coastal waters. A larger population of sea turtles off Hutchinson Island is biologically plausibe. Recent aerial surveys have shown an increase in the numbers of Leatherback turtles nearshore.

Modificatons made to the ocean intake velocity caps were completed in February, 1992, approximately six months prior to the noted increase of turtles. The last inspection of'he ocean intake, velocity cap was made in June, 1992. The next scheduled full inspection is scheduled for June, 1993. As, soon as the sea conditions and visibility permit, St. Lucie Land Management will schedule a survey of the velocity cap to ensure no damage or deterioration has occurred.

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TURTLES CAPTURED YEAR - 3.991 YEAR GREENS LOGGERHEAD KEMPiS RZDLY HAWKSBILL LEATHERBACK TOTAL JANUARY 13 14 FEBRUARY 12 16 MARCH 20 24 APRIL 19 20 15 15 JUNE JULY 0 AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER TOTAL 12 107 121

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TURTLES CAPTURED YEAR - 1992 GREENS LOGGERHEAD REMPIS RIDLY HAWRSBILL LEATHERBACK TOTAL JANUARY 19 22 FEBRUARY 12 18 MARCH APRIL 13 15 JUNE JULY 16 16 AUGUST 12 SEPTEMBER 17 OCTOBER 18 30 NOVEMBER 12 0 23 DECEMBER 13 24

.7 TOTAL 61 123 187

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TURTLES CAPTURED YEAR - 1993 YEAR GREENS LOGGERHEAD KEMPS RIDLY HAWKSBZLL LEATHERBACK TOTAL JANUARY 16 33 0 51 FEBRUARY 28 39 MARCH 55 15 75 APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER 3 Month 99 59 165 TOTAL

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