1971 Certej Dam Failure
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The 1971 Certej dam failure was a flood due to the failure of a
tailings dam A tailings dam is typically an earth-fill embankment dam used to store byproducts of mining operations after separating the ore from the gangue. Tailings can be liquid, solid, or a slurry of fine particles, and are usually highly toxic and po ...
at the Certej mine which led to the death of 89 people. It occurred on 30 October 1971 in
Certeju de Sus Certeju de Sus ( hu, Felsőcsertés) is a commune in Hunedoara County, Transylvania, Romania. It is composed of nine villages: Bocșa Mare (''Boksatelep''), Bocșa Mică, Certeju de Sus, Hondol (''Hondol''; german: Hondolen), Măgura-Toplița (''Ma ...
commune,
Hunedoara County Hunedoara County () is a county ('' județ'') of Romania, in Transylvania, with its capital city at Deva. The county is part of the Danube–Criș–Mureș–Tisa Euroregion. Name In Hungarian, it is known as , in German as , and in Slovak ...
,
Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, and ...
.


Background

The tailing pond of Certej was used between 1936 and 1971 to hold the
cyanide Cyanide is a naturally occurring, rapidly acting, toxic chemical that can exist in many different forms. In chemistry, a cyanide () is a chemical compound that contains a functional group. This group, known as the cyano group, consists of ...
-laced acid
tailings In mining, tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are different to overburden, which is the waste rock or other material that overli ...
resulting from the
gold mine Gold Mine may refer to: * Gold Mine (board game) *Gold Mine (Long Beach), an arena *"Gold Mine", a song by Joyner Lucas from the 2020 album ''ADHD Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characteri ...
exploitation of Certej.


The disaster

At 4:55 AM, the dam broke for a length of and from the
tailings pond In mining, tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are different to overburden, which is the waste rock or other material that overlie ...
, of residue flowed towards the town of Certej, flooding a radius of around around the pond. The flood completely destroyed six apartment buildings, a dormitory building and seven individual houses, resulting in 89 deaths and 76 people being wounded. Due to the early hour, most of the victims were sleeping, which resulted in the high death toll.


Aftermath

The Romanian Communist authorities announced in the press only 48 deaths, in order to avoid a
National day of mourning A national day of mourning is a day or days marked by mourning and memorial activities observed among the majority of a country's populace. They are designated by the national government. Such days include those marking the death or funeral of ...
. The survivors were compensated for the loss of their dwellings, receiving from the state an apartment or construction materials to rebuild their houses. A governmental commission made out of 16 experts was created to investigate the disaster. Following their investigation, they found that the tailings lost their stability due to the increase in height over the allowed limits. Also, a factor may have been the heterogenous content of the pond, as between 1936 and 1971, various materials were deposited, having different characteristics, leading to a fault slip. The prosecutors investigated the dam planner and five other people, but eventually they decided to drop all charges, as the disaster could not have been easily predicted.


See also

*
Ok Tedi environmental disaster The Ok Tedi environmental disaster caused severe harm to the environment along of the Ok Tedi River and the Fly River in the Western Province of Papua New Guinea between around 1984 and 2013. The lives of 50,000 people have been disrupted. One ...
– a similar tailings dam rupture in
Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...
in 1984, still causing environmental damage for decades thereafter *
Merriespruit tailings dam disaster The Merriespruit tailings dam disaster occurred on the night of 22 February 1994 when a tailings dam failed and flooded the suburb of Merriespruit, Virginia, Free State, South Africa. Seventeen people were killed as a result.Wagener, 1997 Late ...
in
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...
in 1994 *
2000 Baia Mare cyanide spill The 2000 Baia Mare Cyanide spill was a leak of cyanide near Baia Mare, Romania, into the Someș River by the gold mining company Aurul, a joint-venture of the Australian company Esmeralda Exploration and the Romanian government. The polluted w ...
, also in Romania *
Ajka alumina plant accident Ajka () is a city in Hungary with about 35,000 inhabitants. It is situated in the hills of Bakony. History Around 1000 BCE, the area was inhabited by Celts. By the second century CE, the territory was conquered by the Romans. The Hungarians occu ...
in
Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the ...
in 2010 *
Bento Rodrigues dam disaster The Mariana dam disaster, also known as the Bento Rodrigues or Samarco dam disaster, occurred on 5 November 2015, when the Fundão tailings dam at the Germano iron ore mine of the Samarco Mariana Mining Complex near Mariana, Minas Gerais, Braz ...
in
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
in 2015


References

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