PL PACKET 09191995 - Laserfiche WebLink

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CHAPTER 6 COMMUNITY FACILITIES 117 • The treatment costs and the cost of maintaining the City's system of trunk and laterals are paid for by the sewer user charges. TRUNK SYSTEM CAPACITY The projected 1990 sewage flows from the City of New Brighton are shown on Figure 16 and Map 15. These sewage flows are based on full development of the City. Map 16 shows the sanitary sewer subdistricts and the points where these subdistricts drain into the sewer system. The projected flows from each subdistrict are tabulated on Figure 16. All land uses based on the land use plan have been converted to REC's (residential equivalent connection) for computing these daily sewage flows. Based on past records, a residential equivalent connection has been estimated to generate 201 gallons per day. Map 15 also shows the accumulative flow from the subdistricts at the point they enter. By the year 1990, it is estimated that the City will generate 2,244,592 gallons of sewage per day. Map 16 shows the diameter and capacity of the trunk sewer system at various points of the projected 1990 sewage flows on Map 15. The percent of capacity for full development at any of these points can be determined from Map 16 and 17 by multiplying the projected flow of 3.87 and dividing this product by the pipe capacity. The 3.87 figure is the product of a 1.55 factor for converting a million gallons per day to cubic feet per second and a 2.5 peak flow factor. EXAMPLE: 3.87 x Projected flow (in MGD fromMap No. 1) = oho of Capacity Pipe Capacity (in CFS fromMap No. 2)