Three fourth of the catchment area is used for settlements, including the commercial centre of Huddinge (Huddinge Centrum) and half a dozen residential neighbourhoods.
The lake used to receive waste water from both settlements and other neighbouring operations 1951-1971, but the inflow is today reduced to stormwater - the old usage still echoing in oxygen depletion and phosphorus release at the lake bottom, and algae bloom and limited water transparency.