MTAS Publications: Technical Bulletins

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Nonpoint sources of water pollution are defined as land and air use activities that contribute to pollution of ground and/or surface water as a result of runoff, of nonpoint source pollution leachate from septic tanks seepage, or percolation. Major sources are agriculture runoff, urban runoff, and landfills, runoff from forestry and mining operations, and hydrologic modifications. Nonpoint sources of water pollution are responsible for approximately three-fourths of the water quality problems in Tennessee.

The Clean water Act of 1987 (Act) requires states to begin addressing the problem of nonpoint sources of water pollution.


The MTAS publications provided on this website are archival documents intended for informational purposes only and should not be considered as authoritative. The content contained in these publications may be outdated, and the laws referenced therein may have changed or may not be applicable to your city or circumstances. For current information, please visit the MTAS website at:

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