Pacific Gas andS Electric Company' Diablo Canyon Power Plant P. 0. Box 56

Avila Beach, CA 93424

PG&E Letter DCL-2014-523

June 17, 2014

Justin ViezbickeCalifornia Stranding Network CoordinatorNOAA Fisheries501 West Ocean Blvd., Suite 4200Long Beach, California 90802-4213

Certified/Return Receipt# 7010-1060-0000-4204-4869

Marine Mammal Strandinq Report (Sea Lion) Diablo Canyon Power Plant

Dear Mr. Viezbicke:

Enclosed is a NOAA Form 89-864 Marine Mammal Stranding Report for a dead sea lion(Zalophus californianus) discovered in the Diablo Canyon Power Plant (DCPP) intakestructure. The sea lion was discovered on June 05, 2014 against the Unit 2 intake bar racks.

As authorized in a letter dated June 3, 1994 from the National Marine Fisheries Service, DCPPremoved the deceased sea lion from the intake structure and transported it offshore. The sealion was 43 inches in length with an estimated weight of 35-40 pounds. The animal had moderatedecomposition. Most of the head was decomposed (reference enclosed photograph). There wasno indication of cause of death due to the decomposition. It appears that this animal died anddrifted up against the power plant intake bar racks. Intake flows are not a challenge to live sealions, and the animals are frequently observed swimming in and out of the intake structure barrack bay openings. There was no indication of an adverse impact to the specimen due to powerplant operations. It is most likely that the sea lion's death is attributable to natural causes.

Verbal notification of this incident was reported to NOAA Fisheries on June 05, 2014 (the day ofdiscovery).

Should you have any questions or concerns regarding the enclosed report, or require additionalinformation, please contact Jim Kelly of my staff at (805) 545-3194.

Sincerely,

Kenneth W. CorteseManager - Chemistry and Environmental Operations

2014523/jlk/bkc

Enclosures (2)

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PG&E Letter DCL-2014-523Justin Viezbicke, NOAA FisheriesJune 17, 2014Page 2

cc w/enclosures: Alan B. WangNRR Project ManagerU.S. Nuclear Regulatory CommissionOne White Flint NorthMail Stop 08B111555 Rockville PikeRockville, MD 20852-2738

Thomas HipschmanSenior Resident InspectorU.S. Nuclear Regulatory CommissionDiablo Canyon Power Plant 104/5

Regional AdministratorU.S. Nuclear Regulatory CommissionRegion IV611 E. Lamar Blvd., Suite 400Arlington, TX 76011-4125

U.S. Nuclear Regulatory CommissionDocument Control DeskWashington, D.C. 20555-0001

Marine RegionCalifornia Department of Fish and Wildlife20 Lower Ragsdale Dr. Suite 100Monterey, CA 93940

MARINE MAMMAL STRANDING REPORT - LEVEL A DATA

FIELD M: NMFS REGIONAL #.(NMFS USE)

NATIONAL DATABASE#:.(NMFS USE)

COMMON NAME: California Sea Lion

EXAMINER Name: James Kelly

GENUS: Zalophus SPECIES: californianus

Affiliation: Pacific Gas and Electric Company

Address: P.O. Box 56, Avila Beach, California 93424 Phone: (805) 545-3194

Stranding Agreement or Authority:

LOCATION OF INITIAL OBSERVATION

State: Ca. County: San Luis Obispo

City: Avila Beach

Body of Water: Pacific Ocean

Locality Details: Diablo Canyon Power Plant

Intake Structure Bar Rack Bay 2-6

Lat (DD): 35 12' 44" NLong(DD): 120 . 51' 13" W

B0 Actual 0 Estimated

How Determined: (check ONE)

N GPS 0 Map 0 Internet/Software

OCURRENCE DETAILS 0 Restrand GE#

Group Event. 0 YES 00 NO (NMFS Use)

If Yes, Type: 0 Cow/Calf Pair 0 Mass Stranding # Animals: 0__ Actual 0 Estimated

Findings of Human Interaction: 03 YES N NO 01 Could Not Be Determined (CBD)

If Yes, Choose one or more: 0 1. Boat Collision 0 2. Shot 0 3. Fishery Interaction

0 4. Other Human Interaction:

How Determined (Check one or more): 0 External Exam 01 Internal Exam 0 Necropsy

o Other:

Gear Collected? 0 YES 09 NO Gear Disposition:

Other Findings Upon Level A: 0 YES DO NO 0I Could Not Be Determined (CBD)

If Yes, Choose one or more: 0 1. Illness 0 2. Injury 0 3. Pregnant 0 4.Other:

How Determined (Check one or more): 0 External Exam 0 Internal Exam 0D Necropsyfl Nfther

INITIAL OBSERVATION LEVEL A EXAMINATION 0 Not Able to Examine

Date: Year: 2014 Month: 06 Day: 05 Date: Year: 2014 Month: 06 Day: 05

First Observed: 0 Beach or Land 0 Floating 0 Swimming

CONDITION AT INITIAL OBSERVATION (Check ONE) CONDITION AT EXAMINATION (Check ONE)

0 1. Alive 0 4. Advanced Decomposition 0 1. Alive 0 4. Advanced Decomposition

0 2. Fresh dead [1 5. Mummified/Skeletal 0 2. Fresh dead 0 5. Mummified/Skeletal

N 3. Moderate decomposition 0 6. Condition Unknown B0 3. Moderate decomposition 0 6. Unknown

INITIAL UVE ANIMAL DISPOSITION (Check one or more) MORPHOLOGICAL DATA

0 1. Left at Site 0 6. Euthanized at Site SEX (Check ONE) AGE CLASS (Check ONE)

0] 2. Immediate Release at Site 0 7. Transferred to Rehabilitation: 0 1. Male c 1. Adult 0 4. Pup/Calf

0 3. Relocated Date: Year:__ Month: .Day:_ 0 2. Female 0 2. Subadult 0 5. UnknownFacility:.

0 4. Disentangled 0 8. Died during Transport B] 3. Unknown M 3. Yearling

0 5. Died at Site 0 9. Euthanized during Transport B Whole Carcass 0 Partial Carcass

0 10. Other:

CONDITIONIDETERMINATION (Check one or more) Straight length: 43 0 cm B] in B9 actual 0 estimated

0 1. Sick 7. Location Hazardous Weight: 35-40 0 kg B lb 0 actual [ estimated

02. Injured 0 a. To animal PHOTOSNIDEOS TAKEN: N YES 0 NO

0 3. Out of Habitat 0 b. To public Photo/Video Disposition:

0 4. Deemed Releasable 03 8. Unknown/CBD One photograph of the specimen is enclosed with the report.

0 5. Abandoned/Orphaned 0 9.Other

0 6. Inaccessible CARCASS STATUS (Check one or more)

0l 1. Left at Site B0 4. Towed: Lat Long _ 0 7. LandfillTAG DATA Tags Were: 0 2. Buried 0 5. Sunk: Lat Long_ __ 0 8. Unknown

Present at Time of Stranding (Pre-existing): 0 YES E0 NO 0 3. Rendered 0 6. Frozen for Later Examination 0 9. Other

Applied during Stranding Response: 0 YES 0 NOSPECIMEN DISPOSITION (Check one or more)

ID# Color Type Placement* Applied Present 0 1. Scientific collection 0 2. Educational collection(Circle ONE)

D DF L 0 0 0 3. Other: Towed offshore to open ocean outside power plant intake cove.

LF LR RF RR Comments: Specimen appeared to have died from natural causes.

D DF L 0 0__LF LR RF RR NECROPSIED B NO 0 YES 0 Limited 0 Complete

D DF L 0l 0LF LR RF RR 0 Carcass Fresh 0 Carcass Frozen/Thawed

D=- Dorsal; DF= Dorsal Fin: L= Lateral Body NECROPSIED BY:LF= Left Front: LR= Left Rear: RF= Right Front: RR= Right Rear Date: Year: Month: Day:

NOAA Form 89-864; OMB Control No.0648-0178; Expiration Date 01/31/2017 PLEASE USE THE BACK SIDE OF THIS FORM FOR ADDITIONAL REMARKS

ADDITIONAL REMARKS

ADDITIONAL IDENTIFIER: (If animal is restranded, please indicate any previous field numbers here)

The sea lion carcass was found against the 2-6 bar racks in the Diablo Canyon Power Plant intake structure. The animal had apparently died

nearby, and drifted on to the bar racks in the intake cooling water flow. The carcass was removed by divers, photographed, and the remains

towed offshore where it was released. There was no indication of an adverse impact to the animal due to power plant operations.

DISCLAIMER

THESE DATA SHOULD NOT BE USED OUT OF CONTEXT OR WITHOUT VERIFICATION. THIS SHOULD BE STRICTLY ENFORCED WHEN REPORTING SIGNSOF HUMAN INTERACTION DATA.

DATA ACCESS FOR LEVEL A DATA

UPON WRITTEN REQUEST, CERTAIN FIELDS OF THE LEVEL A DATA SHEET WILL BE RELEASED TO THE REQUESTOR PROVIDED THAT THE REQUESTORCREDIT THE STRANDING NETWORK AND THE NATIONAL MARINE FISHERIES SERVICE. THE NATIONAL MARINE FISHERIES SERVICE WILL NOTIFY THECONTRIBUTING STRANDING NETWORK MEMBERS THAT THESE DATA HAVE BEEN REQUESTED AND THE INTENT OF USE. ALL OTHER DATA WILL BERELEASED TO THE REQUESTOR PROVIDED THAT THE REQUESTOR OBTAIN PERMISSION FROM THE CONTRIBUTING STRANDING NETWORK AND THENATIONAL MARINE FISHERIES SERVICE.

PAPERWORK REDUCTION ACT INFORMATION

PUBLIC REPORTING BURDEN FOR THE COLLECTION OF INFORMATION IS ESTIMATED TO AVERAGE 30 MINUTES PER RESPONSE, INCLUDING THE TIMEFOR REVIEWING INSTRUCTIONS, SEARCHING EXISTING DATA SOURCES, GATHERING AND MAINTAINING THE DATA NEEDED, AND COMPLETING ANDREVIEWING THE COLLECTION OF INFORMATION. SEND COMMENTS REGARDING THIS BURDEN ESTIMATE OR ANY OTHER ASPECT OF THECOLLECTION INFORMATION, INCLUDING SUGGESTIONS FOR REDUCING THE BURDEN TO: CHIEF, MARINE MAMMAL AND SEA TURTLE CONSERVATIONDIVISION, OFFICE OF PROTECTED RESOURCES, NOAA FISHERIES, 1315 EAST-WEST HIGHWAY, SILVER SPRING, MARYLAND 20910. NOTWITHSTANDINGANY OTHER PROVISION OF THE LAW, NO PERSON IS REQUIRED TO RESPOND, NOR SHALL ANY PERSON BE SUBJECTED TO A PENALTY FOR FAILURETO COMPLY WITH, A COLLECTION OF INFORMATION SUBJECT TO THE REQUIREMENTS OF THE PAPERWORK REDUCTION ACT, UNLESS THECOLLECTION OF INFORMATION DISPLAYS A CURRENTLY VALID OFFICE OF MANAGEMENT AND BUDGET (OMB) CONTROL NUMBER.

NOAA Form 89-864; OMB Control No.0648-0178; Expiration Date 01/31/2017

PG&E Letter DCL-2014-523June 17, 2014

Specimen Photograph - Sea Lion (Zalophus californianus)Diablo Canyon Power Plant (DCPP) - June 05, 2014

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