Rainfall. Temperature. Man-made pollutants. Numerous factors can affect the life of a stream, which means Louisville MSD must utilize a variety of tools to understand stream health and water quality as part of its mission to ensure safe, clean waterways.
One such method is a scientific survey method known as electro-fishing, as part of its efforts to collect biological data about streams in the Louisville Metro area. Fish, along with other biological data, provides insight on local stream health. The process involves using electricity to stun fish before they are caught.