ERLA Environmental Responsibility and Liability Act. The Minnesota State Superfund. The wearing away of land surfaces by the action of wind or water Eutrophic A lake that has a high level of plant nutrients and biological productivity and a low oxygen content. The aging process by which lakes are fertilized with nutrients. Natural eutrophication will very gradually change the character of a lake.
Cultural eutrophication is the accelerated aging of a lake as a result of human activities.
Turnover Cooling surface waters, activated by wind action, sink to mix with lower levels of water. As in spring turnover, all water is now at the same temperature. An investigation to determine which course of action should be taken, based on which is the most cost effective. Often preceded by a remedial investigation. Fecal Coliform Bacteria A group of bacteria found in the intestinal tract of humans and animals, and also found in soil.