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The potash mine, owned byUralkali, was the basis of the fortune ofDmitry Rybolovlev who sold his interest in 2010 toSuleyman Kerimov. Mine supports in the huge underground mine, about 1,000 feet (~300 metres) beneath the city, consist of soluble salt which is being dissolved by water flooding into the mine. The city, a former Soviet-era labor camp, was built near the work site, over the mine. Severalsinkholes, some huge, have opened within the city. The situation requires round-the-clock monitoring. The problem is believed to be limited to a small part of the mine which was not filled properly and is limited in its future impact, but the relocation of the city is under consideration.[8] The largest sinkhole, locally dubbed, "The Grandfather" by 2012, was 340 yards (~310 metres) wide, 430 yards (~390 metres) long, and 780 feet (~240 metres) deep.[8] When it opened in 2007[9] the hole was initially 80 m long, 40 m wide and 200 m deep.[10] The sinkhole was expected to expand, and destroy part of the only rail line which leads to and from thepotash mines, and, being that Berezniki produces around 10% of the world's potash, this would lead global demand towardsCanada, potentially damaging the local economy. Nobody was injured when the sinkhole appeared.
Berezniki has a theatre and a museum of regional history.
Every year from July 17 to the 20th the town celebrates itsmosquitoes. They have music, dancing and a "most delicious girl" competition. In the competition, the girls stand for 20 minutes in their shorts and vests, and the one who receives the most bites wins.[11]
The city was in 124th place out of 1115 cities of Russia in terms of population in 2019.
According to the 2010 census,Russians formed a majority in the city with a 90.87%, whileTatars (3.16%) were the largest minority, followed byUkrainians (0.81%),Permian Komi (0.67%) andGermans (0.51%).[12]
Berezniki was served by theBerezniki Airport until 2001. A railway station is closed since it is located in the sinkhole area and has been damaged beyond repair. In the city, public transport service is operated withtrolleybuses and buses.
Законодательное собрание Пермской области. Закон №416-67 от 28 февраля 1996 г. «Об административно-территориальном устройстве Пермского края», в ред. Закона №504-ПК от 9 июля 2015 г. «О внесении изменений в Закон Пермской области "Об административно-территориальном устройстве Пермского края"». Вступил в силу с момента опубликования. Опубликован: "Звезда", №38, 12 марта 1996 г. (Legislative Assembly of Perm Oblast. Law #416-67 of February 28, 1996On the Administrative-Territorial Structure of Perm Krai, as amended by the Law #504-PK of July 9, 2015On Amending the Law of Perm Oblast "On the Administrative-Territorial Structure of Perm Krai". Effective as of the moment of publication.).
Законодательное собрание Пермской области. Закон №1983-434 от 27 декабря 2004 г. «Об утверждении границ и о наделении статусом муниципального образования "Город Березники" Пермского края», в ред. Закона №499-ПК от 16 октября 2009 г «О внесении изменений в отдельные законодательные акты Пермской области и Коми-Пермяцкого автономного округа». Вступил в силу через десять дней со дня официального опубликования. Опубликован: "Звезда", №217–218, 30 декабря 2004 г. (Legislative Assembly of Perm Oblast. Law #1983-434 of December 27, 2004On Establishing the Borders and on Granting the Status to the Municipal Formation of the "City of Berezniki" of Perm Krai, as amended by the Law #499-PK of October 16, 2009On Amending Various Legislative Acts of Perm Oblast and Komi-Permyak Autonomous Okrug. Effective as of the day which is ten days following the day of the official publication.).