Section 538.03. Definitions.

  The following definitions as well as the definitions in ch. 289 , Stats. , and s. NR 500.03 are applicable to the terms used in this chapter unless the context requires otherwise.

(1)  "Base course" means the layer or layers of specified or selected material of designated thickness placed on a subbase or subgrade to support a pavement or other structure.

(2)  "Confined geotechnical fill" means a fill that is covered by an impervious surface such as concrete or asphalt.

(3)  "Flue gas desulfurization" means the material recovered from air pollution control systems that capture sulfur dioxide emissions from energy recovery facilities.

(4)  "Industrial byproduct" means papermill sludge, ash from energy recovery including coal ash and slag, material captured in flue gas desulfurization systems, ferrous and steel foundry excess system sand and slag, lime kiln dust or non-hazardous solid waste with similar characteristics as determined by the department.

(5)  "Lime kiln dust" means the material recovered for air pollution control systems that capture emissions from lime kilns.

(6)  "Residential area" means properties that are zoned as residential, are in areas planned for residential zoning under a master plan approved or adopted by a local municipal authority or an area within 100 feet of a human residence.

(7)  "Subbase" means the layer or layers of specified or selected material placed on a subgrade to support a base course.

(8)  "Subgrade" means the top soil surface upon which a subbase or base course are placed.

(9)  "Subgrade fill" means the layer or layers of material placed above the natural ground surface to achieve a subgrade.

(10)  "Unconfined geotechnical fill" means a fill that is covered by native soils.

History: Cr. Register, December, 1997, No. 504 , eff. 1-1-98; CR 05-020 : renum. (2) to (6) to be (4) and (6) to (9) and am. (4) and (6), cr. (2), (3), (5) and (10) Register January 2006 No. 601 , eff. 2-1-06.