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. � <br /> � ` EXHIBIT A <br /> 21. PRIVATE SEWER SYSTEMS. Private sewer systems are allowed <br /> only under unusual circumstances subject to the approval of the City Manager <br /> upon recommendation from the Director of Engineering and Infrastructure. A <br /> private sanitary sewer is a sewer that is owned by one or more individuals as <br /> opposed to a sewer owned and operated by the City or the Sanitary District of <br /> Decatur. Building sewers that serve more than one building and building sewers <br /> that serve only one building but traverse one or more lots other than the lot on <br /> which exists the building served shall be considered private sewers. Building <br /> sewers that serve only one building and do not traverse one or more lots other <br /> than the lot on which exists the building served shall not be considered private <br /> sanitary sewers. In cases where a private sewer system is appropriate, the <br /> owner or developer shall provide to the Director of Engineering and Infrastructure <br /> the following: <br /> (a) Copies of all applicable permits issued by agencies regulating the <br /> construction, operation and maintenance of the private sewer system. <br /> (b) Design plan and profile drawings of the proposed sewer system <br /> showing: pipe sizes, locations, slopes, inverts, and materials; ground elevations <br /> along the proposed sewer system; pump type and size specifications where <br /> applicable; alarm system specifications where applicable. Such plans shall be <br /> prepared and certified by a professional engineer licensed by the State of Illinois. <br /> (c) Private maintenance agreement for the private sewer system to be <br /> recorded as a deed restriction for each property to be served by the private <br /> sewer system. <br />