Lutvann is a

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

in the recreational area

Østmarka Østmarka is a forested area to the east of Oslo and part of the congregation of woodland areas known as Oslomarka. The area is situated within the municipalities Oslo, Lørenskog, Rælingen, Ski and Enebakk. Østmarka is delimited to the west by ...

Oslo Oslo ( , , or ; sma, Oslove) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of ...

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...

. It covers an area of 0.39 km², at 205 m elevation. Located just outside the capital city, it is a popular site for recreation, including swimming and fishing during summer, with

brook trout The brook trout (''Salvelinus fontinalis'') is a species of freshwater fish in the char genus ''Salvelinus'' of the salmon family Salmonidae. It is native to Eastern North America in the United States and Canada, but has been introduced elsewhere ...

in the lake. In the winter there are ski trails along and on the lake. The lake is also used by

the Church of Jesus Christ of Latter-day Saints The Church of Jesus Christ of Latter-day Saints, informally known as the LDS Church or Mormon Church, is a Nontrinitarianism, nontrinitarian Christianity, Christian church that considers itself to be the Restorationism, restoration of the ...

for

baptism Baptism (from grc-x-koine, βάπτισμα, váptisma) is a form of ritual purification—a characteristic of many religions throughout time and geography. In Christianity, it is a Christian sacrament of initiation and adoption, almost inv ...

. In 2001 activists from the Youth of the Progress Party were charged for cutting down a tree in the preserved area in order to protest the fact that building in the area is prohibited.

Romeriksporten

As part of the construction of the Romerike Railway Tunnel during 1994–1999, there was a leak in the tunnel that caused up to 1,000 litres per minute to leak into the tunnel from lake above. Though the leakages had started in 1995, it was not until after they were discovered on February 3, 1997 sanctions were initiated by the

Norwegian Water Resources and Energy Directorate The Norwegian Water Resources and Energy Directorate ( no, Norges vassdrags- og energidirektorat or NVE) is a Norwegian government agency established in 1921. It is under the Ministry of Petroleum and Energy and regulates the country's water reso ...

requiring leakage removals in the tunnel. To solve the problem, the chemical

Rhoca-Gil {{unreferenced, date=December 2013 Rhoca-Gil is a type of industrial sealant produced by Rhône-Poulenc, used in the construction of tunnels to block the passage of groundwater into the tunnel. The sealant begins as a liquid, is then injected into c ...

was used to try to remove the leaks, but due to inappropriate techniques used during the utilization, the compound did not correctly

polymer A polymer (; Greek '' poly-'', "many" + ''-mer'', "part") is a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits. Due to their broad spectrum of properties, both synthetic a ...

ize, and instead started polluting the area in and around Lutvann with

acrylamide Acrylamide (or acrylic amide) is an organic compound with the chemical formula CH2=CHC(O)NH2. It is a white odorless solid, soluble in water and several organic solvents. From the chemistry perspective, acrylamide is a vinyl-substituted primary ...

and methylolacrylamide. At the same time, since the compound did not settle it did not either tighten the cracks in the bedrock, and so the leakages did not stop. It took more than one year to fix the leaks, costing about

NOK Nok is a village in Jaba Local Government Area of Kaduna State, Nigeria. The village is an archeological site. Archaeology The discovery of terracotta figurines at this location caused its name to be used for the Nok culture, of which these ...

500 million. To not completely drain the lake for water about 200 litres per minute of water was pumped into Lutvann from other lakes. Lutvann was not as seriously affected by the drainage of Nordre Puttjern. During the entire process lasting about a year the two lakes leaked about two million litres of water through the tunnel. File:Lutvann140914_nord.JPG, Lutvann from north File:Lutvann140914_west.JPG, Lutvann from south

References

{{Lakes in Norway Lakes of Oslo Marka, Oslo