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• Sewer Flow Quantification Projected flows for the sanitary sewer system were estimated using historical sanitary sewer flows and population projections provided by MCES. The amount of sanitary sewer measured by MCES in 2005 was recorded as 240.85 MG. The population of the City in 2005 was estimated by MCES to be 5800. Table 2 summarizes the project sanitary sewer flows for the City for up to the year 2030. Table 2 -Sanitary Sewer Flow Projections 'i!. ' :.i .,~ Sewered Po ulation 6,100 6,100 6,100 Sewered Households 2,350 2,400 2,500 Sewered Em to ent 3,900 4,050 4,200 Average Annual Wastewater Flow 0.91 0.89 0.88 MGD Allowable Peak Hourly Flow 2.91 2.85 2.82 MGD • Existing and Potential Sanitary Sewer Related Issues Sanitary Sewer Collection System Previous CCTV inspection documents were reviewed to determine the condition of the sanitary sewer at the time of the inspections. It is possible that additional deficiencies exist in the system today would need to be addressed in the short-term. The City is currently televising the entire sanitary sewer collection system. This section should be updated following completion and review of data from the CCTV effort. Deficiencies and defects identified include mid-segment sags in excess of 4-inches, offset pipe joints, and significant joint separation. These types of defects can severely impact the capacity and structural integrity of the collection system and should be addressed. The locations of these defects are shown in Figure 8, on the following page. While some of these types of defects can be resolved cost effectively using trenchless technology, the sever sags and offset joints should be corrected using conventional open trench methods and should be, if possible, coordinated with the City's street reconstruction program. • Falcon Heights Comprehensive Plan 2008 Draft -January, 2008 Part III: Infrastructure, Page III-19