(1)    Boundary.

      (a)    Except as provided in pars. (b) to (d), the initial boundary of the district is the boundary of the county in which the 1st class city is located.

      (b)    The initial boundary of a district created under s. 200.23 (1) (b) is the same as the boundary of the district created under s. 59.96 (5), 1979 stats.

      (c)   

         1.    The commission shall, by resolution, exclude areas from the district that it finds are not likely to receive sewerage service from the district within 25 years.

         2.    The commission may, by resolution, redefine the boundary of the district initially defined under sub. (1) (b) in accordance with subds. 3. to 5. If an area is likely to receive sewerage service from the district within 10 years, the area shall be included within each boundary redefined under this subdivision.

         3.    Within 90 days after all commissioners have been appointed under s. 200.23, the commission shall adopt rules concerning the factors to be considered in determining the redefined boundary of the district under subd. 2. The commission may also establish conditions by rule that shall apply if an area is not within the district after the boundary is redefined but is subsequently added to the district under par. (d). When adopting rules under this subdivision the commission shall consider, among other considerations:

            a.    The weight to be given to the need for private on-site wastewater treatment systems, as defined in s. 145.01 (12), to maintain the public health and welfare in any area located within the district prior to a redefinition of the boundary but located outside the district after any redefinition of the boundary.

            b.    The weight to be given to the effects of excluding any area from the district by a redefinition of the boundary on property taxation of the area excluded, on the use of the area and on property taxation of the district as a whole.

            c.    The need to maintain the consistency of any redefined boundary of the district with a regional water quality management plan established or approved under ss. 281.12 (1) and 283.83 or any facilities plan established and approved under s. 281.41.

            d.    The equity of providing similar treatment of properties located within a common drainage basin.

            e.    The weight to be given to plans approved by any municipality for expansion of its local sewers and for general development.

         4.   

            a.    Within 45 days after adopting rules under subd. 3., the commission shall determine whether to redefine the boundary under subd. 2. Before the commission adopts a final resolution that would redefine the boundary, the commission shall first obtain the consent of the governing body of the city, village or town in which the area is located and shall hold a public hearing on the proposed resolution. The commission shall mail a notice that states the time and place of the hearing and is accompanied by a copy of the proposed resolution to the clerk of each municipality at least 30 days before the hearing. The commission shall also publish a copy of the notice and of the proposed resolution as a class 2 notice under ch. 985 within the district. The date of the first publication shall be at least 30 days prior to the date of the hearing. The proposed resolution shall contain the description by metes and bounds of each area to be affected by redefining the boundary.

            b.    Any area not included within the redefined boundary under subd. 1. or 2. ceases to be a part of the district for all purposes upon the filing of a certified copy of the resolution describing the area not within the district with the clerk of each county in which the district is located. The commission shall also record the resolution with the register of deeds for each county in which the district is located, and file a certified copy of the resolution with the clerk of each city, village and town in the district and with the department of natural resources.

         5.    The commission shall biennially review the redefinition of the boundary under subd. 4. a. If, after any biennial review, the commission finds that an area is likely to receive sewerage service from the district within the following 10 years, the commission shall redefine the boundary to include the area in the district. Additions to the district under this subdivision are not subject to par. (d).

      (d)   

         1.    The commission shall, by resolution, add any area to the district if all of the following conditions are met:

            a.    Sewage from the area to be added drains or may drain into any lake or into any river or stream flowing into a lake that is used or may be used as a source of drinking water for a municipality.

            b.    The commission has authorized the addition to the sewerage system of all facilities needed to treat and dispose of the sewage from the area to be added.

            c.    The municipality in which the area to be added is located requests that the commission add the area to the district.

            d.    Adding the area to the district is consistent with any regional water quality management plan.

         2.    Before the commission adopts a final resolution to add area to the district, the commission shall first obtain the consent of the governing body of the city, village or town in which the area is located and shall hold a public hearing on the proposed resolution. The commission shall mail a notice stating the time and place of the hearing along with a copy of the proposed resolution to the clerk of each municipality at least 30 days before the hearing. The commission shall also publish a copy of the notice and of the proposed resolution as a class 2 notice under ch. 985 within the district. The date of the first publication shall be at least 30 days prior to the date of the hearing. The proposed resolution shall contain the description by metes and bounds of each area to be added to the district.

         3.    Any area added to the district under this paragraph becomes a part of the district for all purposes upon the filing of a certified copy of the resolution describing the area being added with the clerk of each county in which the district is located. The commission shall also record the resolution with the register of deeds for each county in which the district is located, and file certified copies with the clerk of each city, village and town in the district and with the department of natural resources.

   (2)   Name.

      (a)    Except as provided in par. (b), the name of the district is the metropolitan sewerage district of the county or counties in which it is established.

      (b)    The name of a district created under s. 200.23 (1) (b) is the Milwaukee metropolitan sewerage district.

   (3)   Corporate status. The district is a municipal body corporate that may enter into binding contracts and that may sue and be sued in its own name. The district is a special district under article XI, section 3, of the constitution.