Tesoro Hawaii Single Point Mooring Hose Fuel Oil Spill

State TrusteeFederal TrusteeAO Bureau

Also Known As

None

Incident Type

Oil

State

Hawaii

Case Status

Closed

Location

Barbers Point, Oahu

Authority

OPA

Contaminants of Concern Include

Oil

Affected DOI Resources Include

Migratory Birds, Threatened and Endangered Species, Marine Mammals

Financial Summary

Restoration Funds Collected:

$502,037.25

*Restoration Funds Allocated:

$571,870.26

*Restoration Funds Remaining:

($563,460.52)

* Restoration Funds can contain multiple settlements/projects. All collections are placed in interest bearing accounts. For detailed information on individual settlements/ projects please visit: NRDAR Status Report

Case Description

On August 24, 1998, there was a hose failure at Tesoro's single-point mooring located offshore of Barbers Point, near Honolulu, Oahu, Hawaii. The mooring is a floating buoy used to transfer crude oil and refined products between ships and the refinery onshore. Bunker fuel was being piped into the "Oversea New York," a tank vessel that was also delivering crude oil to the Tesoro storage facility onshore. A sheen was reported at approximately 2000 hours. At the time, Tesoro estimated the spill at 10 barrels or 420 gallons. The United States Coast Guard (USCG), the State of Hawaii Department of Health (DOH), and Tesoro responded to the spill and mobilized cleanup efforts. After recovery of the visible oil in the general vicinity of the offshore single-point mooring, the unified Command demobilized the spill response because of the inability to find any more recoverable oil.

However, beginning on or about September 5, 1998, tarballs and dead oiled birds began to come ashore on the northeastern shore of Kauai, over 100 miles from Tesoro's single point mooring off Barbers Point. On September 11, 1998, the USCG matched, through chemical analysis, the tarballs and oiled dead birds from Kauai with the oil from the Tesoro spill on Oahu. The oil was reported to be coming ashore at Kauai's Barking Sands, Polihale, Nukoli, Fujii, and Kipu Kai beaches. Based on these additional reports and mass balance calculations, Tesoro officials estimated that up to 117 barrels of bunker oil (approximately 4,914 gallons) may have been spilled as a result of the August 24, 1998 hose failure. The USCG, Tesoro and various oil spill response contractors conducted the cleanup on Kauai.

Oiling of shoreline. intertidal and subtidal areas potentially affected a variety of natural resources, including:
• seabirds and their habitat, including some threatened and endangered species under the Endangered Species Act (ESA);
• Hawaiian monk seals (Monachus schauinslandt)(=lIio holo i ha uaua) and their habitat, a species listed as endangered under the ESA;
• intertidal and subtidal habitat and biota in those habitats such as invertebrates, algal communities, and opihi (Gel/ana sp.), which is a commercially and culturally valuable species; and
• beaches and associated recreational and subsistence activities

Case Documents


 Document TypeDocument NameDocument Date

Agreement

 Cooperative Assessment Agreement Cooperative Agreement  
 Cooperative Assessment Agreement Trustees Agreement 11/13/1998

Assessment

 FONSI Amendment to Restoration Plan 07/08/2016
 Study Report Kaula Rock Seabird Survey 11/25/1998
 Study Report Lost Recreational Use Report 05/12/1999
 Study Report Memorandum Sea Bird Sanctuaries Survey Results 10/16/1998
 Study Report Monk Seal 01/08/1999
 Study Report Opihi 04/22/1999

Settlement

 Consent Decree Consent Decree 10/17/2001

Restoration

 Restoration Plan and Environmental Assessment Restoration Plan 11/01/2000

Map View

Case Contact

Pacific islands Fish and Wildlife Office

Honolulu, HI | (808) 792-9400 | http://www.fws.gov/pacificislands/

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