Section 117.11 - Detachment and attachment of large territory(1) APPLICATION. This section applies to the detachment of territory from one school district and its attachment to an adjoining school district if one of the following applies: (a) The assessed value of the territory proposed to be detached from one school district and attached to an adjoining school district, divided by the assessment ratio of the taxation district, is equal to or greater than 7 percent of the equalized valuation of the school district from which the territory is proposed to be detached.(b) Seven percent or more of the enrollment of the school district from which the territory is proposed to be detached resides in the territory proposed to be detached from that school district.(2) INITIATION OF PROCEDURES. A majority of the electors residing in territory proposed to be detached from one school district and attached to an adjoining school district, or owners of more than 50 percent of the territory proposed to be detached from one school district and attached to an adjoining school district, as measured by its assessed valuation divided by the assessment ratio of the taxation district, may file a written petition with the clerk of the school district in which the territory is located requesting the detachment of the territory from that school district and its attachment to an adjoining school district. The petition shall include a description of the territory sufficiently accurate to determine its location in the school district in which it is located, as certified by the clerk of each city, town or village within which all or part of the territory is located, and the number of pupils residing in that territory who, on the most recent of the preceding 3rd Friday of September or 2nd Friday of January, were enrolled in the school district from which the territory is proposed to be detached, as certified by the clerk of that school district. Upon receipt of the petition, the school district clerk shall send a certified notice of the petition to the school board of the school district to which the territory is proposed to be attached and to the secretary of the board.(3) SCHOOL BOARD ACTION. In the first July beginning after receipt of a petition under sub. (2), the school boards of the affected school districts may order the territory detached from the school district in which it is located and attached to the adjoining school district by the adoption, by each of those school boards, of a resolution ordering the detachment and attachment. Failure of a school board to adopt a resolution either ordering or denying the detachment and attachment before August 1 constitutes a denial of the reorganization by that school board. The school district clerk of each school board that adopts a resolution ordering or denying the reorganization under this subsection shall, within 5 days after the adoption of the resolution, send a certified copy of the resolution to the school board of the other affected school district and file a certified copy of the resolution as provided under s. 117.17(2). If the school board of each affected school district adopts a resolution ordering the detachment and attachment, the reorganization shall take effect on the July 1 following the adoption of the resolutions, unless a referendum is required under sub. (4).(4) REFERENDUM. (a) A referendum on the proposed reorganization shall be held if one of the following occurs before the 2nd Tuesday of September following the adoption of a resolution under sub. (3): 1. The school board of either affected school district directs the holding of a referendum.2. A petition conforming to the requirements of s. 8.40 requesting a referendum, signed by at least 10 percent of the electors who reside in either affected school district, is filed with the clerk of the school district from which the territory is proposed to be detached. The validity of the petition shall be governed by the rules promulgated under s. 8.40(3).(b) If a referendum is directed or a petition requesting a referendum is filed under par. (a), the school district clerk of the school board adopting the resolution or the school district clerk receiving the petition shall immediately notify the school board of the other affected school district, the secretary of the board and the clerk of each city, village or town, any part of which is contained within an affected school district. The referendum shall be held in the affected school districts as provided under s. 117.20. Votes shall be counted separately for each affected school district.(5) REFERENDUM RESULTS. If a majority of the votes cast in each affected school district is in favor of the reorganization, the reorganization shall take effect on the following July 1. At the time of canvassing the returns, the school boards of the affected school districts shall make and file an order of school district reorganization under s. 117.17(2).