Laserfiche WebLink
CMP Part 4C. Water Supply <br /> Mains that are 10 inches and larger are considered trunk mains for this size of distribution <br /> system. When possible,all mains should be built in loops.A dead end main without enough <br /> connected demand will require frequent flushing to reduce water stagnation problems.This <br /> problem is especially true for trunk mains because of the larger volume of water stored. <br /> The existing system has several dead end pipe segments in cul-de-sacs and other areas that <br /> limit looping. Looping of water mains also helps provide for uninterrupted service to most <br /> of the system customers when one pipe segment is shut down for repairs. With a looped <br /> system only an isolated section of the system will be out of service instead of an entire <br /> neighborhood or commercial area. Looping also provides for substantial flow increases <br /> during a fire demand as the demand at the location of the fire can be met from more than <br /> one direction in the system. - ' . - . - •- ' . . - <br /> LAND USE AND POPULATION <br /> Land Use <br /> The water system planning area is based on providing service within the current City limits. <br /> Population Projection <br /> The Metropolitan Council's "Thrive" forecasts are presented in Table 4C-3. The <br /> Metropolitan Council projects the City of Orono's population to approach 9,5-90-000 in <br /> 2030. <br /> Table 4C-3: Orono Population and Households 1970 -2040 <br /> (Sewered and Unsewered Forecasts) <br /> Population <br /> Year 1970 1980 1990 2000 2010 2016 2020 2030 2040 <br /> Sewered -- -- -- -- 4,429 -- 5,150 6,170 6,740 <br /> Unsewered -- -- -- -- 3,008 -- 2,950 2,630 2,760 <br /> Total City 6,787 6,845 7,285 7,538 7,437 7,691 8,100 8,800 9,500 <br /> Household <br /> Year 1970 1980 1990 2000 2010 2016 2020 2030 2040 <br /> Sewered -- -- -- -- 1,780 2,105 2,455 2.785 <br /> 2,253 <br /> Unsewered -- -- -- -- 1046 784 1,095 1,105 1,115 <br /> Total City 2,146 2,291 2,613 2,766 2,826 3,037 3,200 3,560 3,900 <br /> Persons/RH 3.16 2.99 2.79 2.73 2.63 2.53 2.53 2.47 2.44 <br /> Source: Metropolitan Council System Statement <br /> City of Orono Community Management Plan 2020-2040 Part 4C, Page 4 <br />