55 ILCS 5/5-1062.3
2021 Illinois Compiled Statutes|Chapter 55 - COUNTIES|55 ILCS 5/ - Counties Code.|Article 5 - Powers And Duties Of County Boards

Sec. 5-1062.3. Stormwater management; DuPage and Peoria Counties.(a) The purpose of this Section is to allow management and mitigation of the effects of urbanization on stormwater drainage in the metropolitan counties of DuPage and Peoria, and references to "county" in this Section apply only to those counties. This Section does not apply to a municipality that only partially lies within one of these counties and, on the effective date of this amendatory Act of the 98th General Assembly, is served by an existing Section in the Counties Code regarding stormwater management. The purpose of this Section shall be achieved by:(1) consolidating the existing stormwater management     framework into a united, countywide structure;(2) setting minimum standards for floodplain and     stormwater management with an emphasis on the use of cost-effective solutions to flooding problems; and(3) preparing a countywide plan for the management of     stormwater runoff, including the management of natural and man-made drainageways.  The countywide plan may incorporate watershed plans and shall evaluate and address flooding problems that exist in urbanized areas that are a result of urban flooding.(b) A stormwater management planning committee may be established by county board resolution, with its membership consisting of equal numbers of county board and municipal representatives from each county board district, and such other members as may be determined by the county and municipal members. If the county has more than 6 county board districts, however, the county board may by ordinance divide the county into not less than 6 areas of approximately equal population, to be used instead of county board districts for the purpose of determining representation on the stormwater management planning committee.The county board members shall be appointed by the chairman of the county board. Municipal members from each county board district or other represented area shall be appointed by a majority vote of the mayors of those municipalities that  have the greatest percentage of their respective populations residing in that county board district or other represented area. All municipal and county board representatives shall be entitled to a vote; the other members shall be nonvoting members, unless authorized to vote by the unanimous consent of the municipal and county board representatives. A municipality that is located in more than one county may choose, at the time of formation of the stormwater management planning committee and based on watershed boundaries, to participate in the stormwater management planning program of either county. Subcommittees of the stormwater management planning committee may be established to serve a portion of the county or a particular drainage basin that has similar stormwater management needs. The stormwater management planning committee shall adopt bylaws, by a majority vote of the county and municipal members, to govern the functions of the committee and its subcommittees. Officers of the committee shall include a chair and vice chair, one of whom shall be a county representative and one a municipal representative.The principal duties of the committee shall be to develop a stormwater management plan for presentation to and approval by the county board, and to direct the plan's implementation and revision. The committee may retain engineering, legal, and financial advisors and inspection personnel. The committee shall meet at least quarterly and shall hold at least one public meeting during the preparation of the plan and prior to its submittal to the county board. The committee may make grants to: (1) units of local government; (2) not-for-profit organizations; and (3) landowners. In order for a municipality located partially or wholly within a mapped floodplain to receive grant moneys, the municipality must be a member in the Federal Emergency Management Agency's National Flood Insurance Program.  A municipality receiving grant moneys must have adopted an ordinance requiring actions consistent with the stormwater management plan. Use of the grant money must be consistent with the stormwater management plan.The committee shall not have or exercise any power of eminent domain.(c) In the preparation of a stormwater management plan, a county stormwater management planning committee shall coordinate the planning process with each adjoining county to ensure that recommended stormwater projects will have no significant impact on the levels or flows of stormwaters in inter-county watersheds or on the capacity of existing and planned stormwater retention facilities. An adopted stormwater management plan shall identify steps taken by the county to coordinate the development of plan recommendations with adjoining counties.(d) The stormwater management committee may not enforce any rules or regulations that would interfere with (i) any power granted by the Illinois Drainage Code