Specific words and phrases. As used in this chapter, the following terms shall have the meanings indicated:
EFFLUENTLiquid flowing from any sewage treatment device, such as a septic tank.
FLOODPLAIN FRINGEThose floodplains excepting the floodway subject to inundation by the one-hundred-year recurrence interval flood.
FLOODPLAINSFor the purpose of this chapter, the floodplains are all lands contained in the regional flood or one-hundred-year recurrence interval flood.
FLOOD PROFILEA graph showing the relationship of the floodwater surface elevation of a flood event of a specified recurrence interval to the stream bed and other significant natural and man-made features along a stream.
FLOODWAYA designated portion of the one-hundred-year flood that will safely convey the regulatory flood discharge with small, acceptable upstream and downstream stage increases, limited in Wisconsin to 0.1 feet unless special legal measures are provided. The floodway, which includes the channel, is that portion of the floodplain not suited for human habitation. All fill, structures and other development that would impair floodwater conveyance by adversely increasing flood stages or velocities or would itself be subject to flood damage should be prohibited in the floodway.
HIGH-WATER ELEVATIONThe average annual high-water level of a pond, stream, lake, flowage or wetland referred to an established datum plane or, where such elevation is not available, the elevation of the line up to which the presence of the water is so frequent as to leave a distinct mark by erosion, change in or destruction of vegetation or other easily recognized topographic, geologic or vegetative characteristics.
HOLDING TANKAny facility designed to be watertight, which is used for the storage and decomposition of human excrement, domestic wastes or liquid industrial wastes.
NATURAL UNDISTURBED SURFACEThe state of the soil or a test site without grading or filling of a site. Stockpiles of topsoil set aside for future use, for example, are not soils in their natural, undisturbed surface.
NAVIGABLE STREAMSAny stream which is capable of floating any boat, skiff or canoe of the shallowest draft used for recreation purposes.
NUISANCEAny source of filth or cause of sickness within the meaning of Ch.
146, Wis. Stats.
PORTABLE TOILETFixtures incorporating holding facilities designed to receive human excrement directly from the user and which are transportable.
PRIVATE SEWAGE SYSTEMA sewage treatment and disposal system serving a single structure with a septic tank and soil absorption field located on the same parcel as the structure; an alternative sewage system approved by the Department, including a substitute for the septic tank or soil absorption field, a holding tank, a system serving more than one structure or a system located on a different parcel than the structure; and may be owned by the property owner or by a special purpose district.
REGIONAL FLOODA flood determined to be representative of large floods known to have generally occurred in Wisconsin and which may be expected to occur on a particular stream because of like physical characteristics. The flood frequency of the regional flood is once in every 100 years; this means that in any given year, there is a one-percent chance that the regional flood may occur or be exceeded. During a typical thirty-year mortgage period, the regional flood has a twenty-six-percent chance of occurrence.
SANITARY PRIVYAn outhouse or structure used for deposition of human excrement.
SEPTIC TANKA watertight, covered receptacle which receives crude, untreated sewage and by bacterial action and sedimentation effects a process of clarification and decomposition of the solid sewage, discharges and effluent.
SERVICINGThe cleaning, removing, hauling and disposing of scum, liquid, sludge or other wastes.