As a layperson researching what Minnesota calls a: "Wind Energy Conversion System" (WECS) or also known as a Wind Turbine, there is one issue that always rears its ugly head, "Noise". I found that Minnesota is one of the many states to specify maximum exposure levels of noise to its citizens. The Minnesota Rules Chapter 7030 describes the limiting levels of sound established on the basis of present knowledge for the preservation of public health and welfare. Within this article I will attempt to provide a logical trace of the sound limiting requirements, along with some possible "delta" areas at the County Zoning Ordinance Levels with regards to a WECS application.