Mälarens vattenvårdsförbund

Mälarens vattenvårdsförbund is a non-profit association based in Västerås, Sweden working on environment & climate, water & sanitation, nature & wildlife conservation.

Mälarens vattenvårdsförbund (MVVF, English: Mälarens Water Conservation Association) is a non-profit association with about 60 member organisations, including authorities, municipalities, companies, researchers and local water councils. It works for the protection and improvement of Lake Mälaren in central Sweden, which supplies drinking water to about 2.3 million people and is also used for transport, bathing and fishing. Its activities include environmental monitoring of the lake, information on current environmental issues, training for municipalities, and support for local water measures. It is funded in part by donations, and its office is in Västerås, Västmanland.