Both Highway and Utility personnel assist in the maintenance of the storm water facilities. The Town's storm sewer system consists of 57.27 miles of storm sewer, 1,269 manholes, and 1,753 catch basins. In 2014, 9.25 square miles of Grand Chute was classified as an urbanized area and required by the Wisconsin Department of Natural Resources (WDNR) and US Environmental Protection Agency (EPA) to meet specific storm water quality requirements. This area increased to 14.01 square miles in 2014 in accordance with the 2010 census. The State of Wisconsin's Wisconsin Pollution Discharge Elimination System (WPDES) Municipal Separate Storm Sewer System (MS4) General Permit (storm water permit) was reauthorized on May 1, 2014. Grand Chute was granted coverage under this permit and is revising the Storm Water Management Plan based on the requirements of this new permit. The reissuance of the General Permit has updated and increased the requirements of the MS4 communities. The reissued WPDES MS4 General Permit contains mandates in six categories: Public Education and Outreach, Public Involvement and Participation, Illicit Discharge Detection and Elimination, Construction Site Pollution Control, Post-Construction Storm Water Management and Pollution Prevention. Each permittee is responsible for meeting all of the applicable requirements within the watersheds in its MS4 boundary. To meet these requirements, the Town must construct numerous new wet storm water ponds. In addition to constructing ponds, Grand Chute was required to sweep the streets of the urbanized area every two weeks between the spring and fall of 2014. The Town also is a member of NEWSC, a consortium of MS4 communities in northeast Wisconsin that works jointly to meet many of the non-infrastructure requirements of the General Permit. The update of the Storm Water Management Plan will be completed in 2015.
Funding of the storm water requirements of the WDNR and EPA is provided through the collection of storm water fees from all properties within the Town. Storm water rates were not increased in 2014. These rates are based on a Residential Equivalent Unit (REU). A charge of $99.84 per year per REU is imposed on all the properties within the Town. Residential Single Family properties are charged one REU. Multi-family developments are charged on a per unit basis. Commercial and industrial properties are charged based on the number of REU's (3,283 SF) of impermeable surface area that is measured on each property.