ABOUT REPORTING

WHEN ARE PERMITS AND PLANS REQUIRED BY THE COUNTY OF DANE?

Construction site erosion control plans and permits are required for any of the following:

Land disturbance more than 4000 square feet.
Land disturbance involving excavation and/or filling more than 400 cubic yards of material.
Land disturbance of more than 100 linear feet of road ditch, grass waterway, or other areas where surface drainage flows in defined, open channels.
New public or private roads or access drives longer than 125 feet.
Development that requires a subdivision plat.
Land disturbance less than 4000 square feet that have a high risk of soil erosion or water pollution, as determined by local ordinance administration.
Land disturbance of any size in the shoreland zone, which includes any of the following areas:
- Within 300 feet of the ordinary high-water mark of any navigable water.
- Within the 100 year floodplain.
- Within 75 feet of the shoreland or inland wetland district.

Stormwater management plans and permits are required for any of the following:

Development that results in the cumulative addition of 20,000 square feet of impervious surface to the site (since August 2001).
Construction of agricultural buildings where the new total impervious surface area exceeds 20,000 square feet.
Development requiring a subdivision plat.
The commercial or industrial development that requires a certified survey map.
Redevelopment exceeding 4,000 square feet of a land disturbance where the site is predominantly developed to commercial, industrial, institutional, or multifamily residential uses.
Other development or redevelopment that may have significant downstream impacts as determined by the local approval authority (In unincorporated areas, this is the Dane County Land and Water Resources Department (LWRD) Director).