Most of the natural and manmade lakes and dams are subject to the gradual accumulation of organic waste material at the bottom. Logs, dead animals, storm washouts and other materials settle at the bottom and slowly build up a graveyard of unhealthy mass which is characterized by its total lack of oxygen, and consequent support of anaerobic life. This accumulation may progress to the point where the whole lake dies. The dirty constitution and resulting odor makes such water unattractive and useless for marine life, recreational purposes, and especially as a drinking water source.

The natural solution to this problem is to be found in enhancing the oxygen levels in such a circumstance. With a relatively small compressor, diffusing pipes and ozone, even a very large and very sick lakes can be restored to full aerobic health.

As a result of the remediation, marine life is restored, and the water becomes very clean and suitable for recreational purposes. Dissolved organic content may also drop from the typical 5 to 20 mg/L down to below 1 mg/L. Logically, if the lake is used to supply drinking water, the treatment station downstream requires much less effort.