The ''Sea Empress'' oil spill occurred at the entrance to the

Milford Haven Waterway Milford Haven Waterway (''Welsh: Dyfrffordd Aberdaugleddau'') is a natural harbour in Pembrokeshire, Wales. It is a ria or drowned valley which was flooded at the end of the last ice age. The Daugleddau estuary winds west to the sea. As one ...

in Pembrokeshire,

Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...

on 16 February 1996. The ''

Sea Empress The MV ''Sea Empress'' was a single-hull Suezmax oil tanker that ran aground at the entrance to the Milford Haven harbour on the southwest coast of Wales in February 1996. The ensuing oil spill, Britain's third largest oil spillage and the 12 ...

'' was en route to the Texaco oil refinery near Pembroke when she became grounded on mid-channel rocks at St. Ann's Head. Over the course of a week, she spilt 72,000 tons of crude oil into the sea. The spill occurred within the

Pembrokeshire Coast National Park Pembrokeshire Coast National Park ( cy, Parc Cenedlaethol Arfordir Penfro) is a national park along the Pembrokeshire coast in west Wales. It was established as a National Park in 1952. It is one of three national parks in Wales, the others b ...

– one of Europe's most important and sensitive wildlife and marine conservation areas. It was Britain's third largest oil spillage and the twelfth largest in the world at the time. Sailing against the outgoing tide and in calm conditions, at 20:07

GMT Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London, counted from midnight. At different times in the past, it has been calculated in different ways, including being calculated from noon; as a cons ...

the ship was pushed off course by the current and became grounded after hitting rocks in the middle of the channel. The collision punctured her starboard hull causing oil to pour out into the sea. Tugs from Milford Haven Port Authority were sent to the scene and attempted to pull the vessel free and re-float her. During the initial rescue attempts, she detached several times from the tugs and grounded repeatedly – each time slicing open new sections of her hull and releasing more oil. A full scale emergency plan was activated by the authorities. News of the grounding was first reported at 21:18 on the BBC's Nine O'Clock News – just over an hour after she ran

aground Ship grounding or ship stranding is the impact of a ship on seabed or waterway side. It may be intentional, as in beaching to land crew or cargo, and careening, for maintenance or repair, or unintentional, as in a marine accident. In accidenta ...

. Over the next few days, efforts to pull the vessel from the rocks continued. Tugboats were drafted in from the ports of

Dublin Dublin (; , or ) is the capital and largest city of Ireland. On a bay at the mouth of the River Liffey, it is in the province of Leinster, bordered on the south by the Dublin Mountains, a part of the Wicklow Mountains range. At the 2016 c ...

, Liverpool and Plymouth to assist with the salvage operation.

Environmental impact

The ''Sea Empress'' disaster occurred in Britain's only coastal national park and in one of only three UK

marine nature reserve Marine nature reserve (MNR) is a conservation designation officially awarded by a government to a marine reserve of national significance. Republic of Ireland Lough Hyne, a marine lake off of County Cork, is Ireland's only marine nature reserve. Un ...

s. The tanker ran aground very close to the islands of

Skomer Skomer () or Skomer Island is an island off the coast of Pembrokeshire, in the community of Marloes and St Brides in west Wales. It is well known for its wildlife: around half the world's population of Manx shearwaters nest on the island, the A ...

and

Skokholm Skokholm () or Skokholm Island is an island off the coast of Pembrokeshire, Wales, south of the neighbouring island of Skomer. The surrounding waters are a marine reserve and all are part of the Pembrokeshire Coast National Park. Both islands ...

– both national nature reserves, Sites of Special Scientific Interest (SSSI) and

Special Protection Area A Special Protection Area (SPA) is a designation under the European Union Directive on the Conservation of Wild Birds. Under the Directive, Member States of the European Union (EU) have a duty to safeguard the habitats of migratory birds and certa ...

s and home to Manx shearwaters, Atlantic puffins, guillemots, razorbills, great cormorants, kittiwakes, European storm-petrels, common shags and

Eurasian oystercatcher The Eurasian oystercatcher (''Haematopus ostralegus'') also known as the common pied oystercatcher, or palaearctic oystercatcher, or (in Europe) just oystercatcher, is a wader in the oystercatcher bird family Haematopodidae. It is the most widesp ...

s. Birds at sea were hit hard during the early weeks of the spill, resulting in thousands of deaths. The Pembrokeshire

grey seal The grey seal (''Halichoerus grypus'') is found on both shores of the North Atlantic Ocean. In Latin Halichoerus grypus means "hook-nosed sea pig". It is a large seal of the family Phocidae, which are commonly referred to as "true seals" or " ...

population didn't appear to be affected too much and impacts to subtidal wildlife were limited. However, much damage was caused to shorelines affected by bulk oil. Shore seaweeds and invertebrates were killed in large quantities. Mass strandings of cockles and other shellfish occurred on sandy beaches. Rock pool fish were also affected. However, a range of tough shore species were seen to survive exposure to bulk oil and lingering residues. A rescue centre for oiled birds was set up in Milford Haven. According to the

Countryside Council for Wales The Countryside Council for Wales (CCW; cy, Cyngor Cefn Gwlad Cymru (CCGC)) was a Welsh Assembly sponsored body responsible for wildlife conservation, landscape and countryside access authority for Wales. It was merged with Forestry Commis ...

(CCW), over 70% of released guillemots died within 14 days. Just 3% survived two months and only 1% survived a year. The Pembrokeshire coast is home to common porpoises and bottlenose dolphins. The effects of the oil and chemical pollution on these species remains unknown. Significant numbers of both species were recorded in the waters off the

Marine Nature Reserve during the spring and summer of 1996. The main containment and dispersement of the oil slick at sea was completed within six weeks. However, the removal of oil on shore took over a year until the late spring of 1997. Small amounts of oil were still found beneath the sand on sheltered beaches and in rock pools in 1999 – three years after the spill. The effects of the spill were not as bad as initially predicted. This was due in part to the time of year when the spill occurred. In February, many migratory animals had not yet arrived back in Pembrokeshire for breeding. Along with stormy weather which helped break-up and naturally disperse the oil, the effect on wildlife would have been much worse if the spill had occurred just a month later. The spill would undoubtedly have been catastrophic for both the environment and local economy if it had occurred during the summer months. Much of the Pembrokeshire coastline recovered relatively quickly. By 2001, the affected marine wildlife population levels had more-or-less returned to normal.

Economic impact

There was an immediate ban on fishing off the coast of Pembrokeshire and south

Carmarthenshire Carmarthenshire ( cy, Sir Gaerfyrddin; or informally ') is a county in the south-west of Wales. The three largest towns are Llanelli, Carmarthen and Ammanford. Carmarthen is the county town and administrative centre. The county is known as ...

which had a devastating impact on the local fishing industry. The ban remained in place for several months and was lifted in stages. Many local fishermen received financial compensation for the loss of income due to the ban. The spill occurred just a few weeks before the Easter break when many holidaymakers would be visiting the area. Some sheltered beaches and tidal estuaries were still covered with oil, but the main tourist locations of

Tenby Tenby ( cy, Dinbych-y-pysgod, lit=fortlet of the fish) is both a walled seaside town in Pembrokeshire, Wales, on the western side of Carmarthen Bay, and a local government community. Notable features include of sandy beaches and the Pembroke ...

Saundersfoot Saundersfoot ( cy, Llanusyllt; Old Welsh: ''Llanussyllt'') is a large village and community (and former electoral ward) in Pembrokeshire, Wales. It is near Tenby, both being holiday destinations. Saundersfoot lies in the Pembrokeshire Coast Natio ...

Pendine Pendine ( cy, Pentywyn, "end of the dunes") is a village and community in Carmarthenshire, Wales. Situated on the northern shore of Carmarthen Bay and bordered by the communities of Eglwyscummin and Llanddowror, the population at the 2011 censu ...

Manorbier Manorbier (; cy, Maenorbŷr ) is a village, community and parish on the south coast of Pembrokeshire, Wales. The name means the ' Manor of Pŷr'. The community includes Jeffreyston and Lydstep. An electoral ward with the same name exists. ...

and Bosherston were superficially cleaned.

Clean-up

A large clean-up operation began as soon as the ''Sea Empress'' started spilling oil. Volunteers and paid hands alike, came together to restore the beautiful beaches of Pembrokeshire. In the immediate days and weeks that followed, one thousand people worked around the clock to rescue oiled birds and remove oil from beaches using suction tankers,

pressure washer Pressure washing or power washing is the use of high-pressure water spray to remove loose paint, mold, grime, dust, mud, and dirt from surfaces and objects such as buildings, vehicles and concrete surfaces. The volume of a mechanical pressure w ...

s and oil-absorbing scrubbers. The main clean-up operation lasted several weeks and continued on a reduced scale for over a year.

Aftermath

Almost three years after the spill in January 1999, Milford Haven Port Authority (MHPA) was fined a record £4m after pleading guilty to the offence of causing pollution under the

Water Resources Act 1991 The Water Resources Act 1991 (WRA) is an Act of the Parliament of the United Kingdom that regulates water resources, water quality and pollution, and flood defence. Part II of the Act provides the general structure for the management of water re ...

. The MHPA was also required to pay a further £825,000 prosecution costs by agreement. The cost of the clean-up operation was estimated to be £60m. When the effects to the economy and environment are taken into account, the final cost is estimated to have been twice that, at £120m ($129602160 USD). Following the spill, the ''Sea Empress'' was repaired and renamed five times. In 2004, she was sold and moved to Chittagong as a floating production, storage and offloading unit (

FPSO A floating production storage and offloading (FPSO) unit is a floating vessel used by the offshore oil and gas industry for the production and processing of hydrocarbons, and for the storage of oil. An FPSO vessel is designed to receive h ...

). In September 2009, she was acquired by Singapore-based ''Oriental Ocean Shipping Holding PTE Ltd'', renamed ''MV Welwind'' and converted from an oil tanker to

bulk carrier A bulk carrier or bulker is a merchant ship specially designed to transport unpackaged bulk cargo — such as grains, coal, ore, steel coils, and cement — in its cargo holds. Since the first specialized bulk carrier was built in 1852, eco ...

. In 2012, she was renamed for a fifth time to 'Wind 3', before Being scrapped in June 2012, in Chittagong

References

External links