Trekanten (Stockholm)
From Wikipedia, the free encyclopedia
Trekanten (English: The Triangle) is a small lake in southern-central Stockholm, Sweden.
Trekanten | |
---|---|
Coordinates | 59°18′42″N 18°0′56″E |
Primary outflows | Liljeholmsviken, Lake Mälaren |
Catchment area | 60 ha (150 acres) |
Basin countries | Sweden |
Surface area | 13.5 ha (33 acres) |
Average depth | 4.3 m (14 ft) |
Max. depth | 7.0 m (23.0 ft) |
Water volume | 570,000 m3 (460 acre⋅ft) |
Residence time | 3 years |
Shore length1 | 1,690 m (5,540 ft) |
Surface elevation | 0.67 m (2 ft 2 in) |
Settlements | Gröndal, Liljeholmen |
References | [1][2] |
1 Shore length is not a well-defined measure. |
Trekanten is located in a park furnished with an artificial bathing beach and various planted-out fish species. It has a small drainage area with no major feeders. In the early 1980s, potable water was poured into the lake while water from the bottom of the lake was pumped out. These operations resulted in a significant reduction in levels of phosphorus but failed to affect levels of nutrients and oxygen depletion in the bottom layers. Levels of lead and copper are among the highest documented in any lake in Stockholm.[3] Whilst the lake flora and fauna is roughly representative for Stockholm, the lake forms a natural link between the bays Årstaviken and Vinterviken.[1]