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assessments as due or to pay for the cost of all improvements that the developer <br /> • agreed to install. <br /> The required security deposit may consist of a cash escrow deposit or irrevocable letter of <br /> credit, in form acceptable to the City Attorney, and with firms authorized to do business in <br /> the State of Minnesota. <br /> Sanitary Sewer <br /> A. Definitions and General Provisions <br /> 1. Sanitary Sewer Interceptors <br /> A network of relatively large diameter, deep sewer pipe and associated <br /> pumping stations and appurtenances. The interceptors are designed as <br /> collectors for large areas within the sanitary sewer service area. <br /> 2. Sanitary Sewer Trunks and Subtrunks <br /> Sanitary sewer pumping stations, including associated forcemain and/or a <br /> network of gravity pipes ranging in size generally from ten inch (10") through <br /> eighteen inch (18") and extending away from respective interceptor mains. <br /> Pumping station, forcemains, trunks and subtrunks are designed as collectors <br /> for areas usually less than three hundred (300) acres. Because sewer lines flow <br /> by gravity, the pipes can become quite deep at some locations and very costly <br /> to install. A trunk or subtrunk assessment is, in certain cases, utilized so that <br /> costs due to extra depth (and/or oversizing) will be spread over the entire <br /> service district rather than becoming a burden on just those properties abutting <br /> that portion of the pipe network constructed. <br /> 3. Sanitary Sewer Laterals <br /> A network of pipes, usually eight inch (8") in size that are installed eight (8) <br /> to twenty (20) feet deep and are designed to serve those buildings abutting a <br /> given street or easement. The laterals drain to trunks, subtrunks or directly to <br /> interceptors. <br /> 4. Sanitary Sewer Building Services <br /> Those pipes, usually four-inch (4") or six-inch (6") in size leading from <br /> laterals (or sometimes from trunks, subtrunks and interceptors) that serve <br /> individual buildings. The services are plugged at the property line until such <br /> time that a building is connected to the sewer system. The property owner <br /> must make arrangements with a licensed, bonded plumber to complete the <br /> service connection. <br /> 40 <br /> 2004 Assessment Policy—Page 14 <br />