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17 <br /> 1 Matt Efird said that the spikes show wet-weather events. He said that the aged wastewater <br /> 2 systems allow input at various entry points. He said that is rainwater getting into the aged sewage <br /> 3 center. He said that from a basic hydraulic standpoint, they have capacity in the system. <br /> 4 <br /> 5 Slide #6 <br /> Future Wastewater Flow Projection <br /> Hillsborough Wastewater Average Annual Daily Flow <br /> Million Gallons per Day <br /> r <br /> WWTP Rated CaPauty <br /> �_ IW Cnx of m[naawh <br /> 1i <br /> N.r. � � ••o+eti Crw <br /> y ray rn rM ra r e. em <br /> rn rir rm ra nr <br /> d.�r rw� w ra rn aw ara <br /> 1.1 � aw rw •m w an. <br /> Trenddmc <br /> e <br /> P151 <br /> n6 years of hisloncat data a rages an annewl <br /> Increase of 2.4%In average daily hydrauHe IWW. <br /> Q5 <br /> 0 <br /> 6 <br /> 7 Matt Efird said that the future wastewater flow projection shows that the Town's capacity <br /> 8 is in a good place from a hydraulic perspective, excepting wet water events. <br /> 9 <br /> 10 Slide #7 <br /> 11 <br /> Nutrient Limitations <br /> • Falls Lake Rules <br /> • Town wastewater permit limits pounds of nitrogen and phosphorus <br /> discharged annually <br /> • No concentration permit limit for these but measured in mg/L and converted to pounds <br /> • Nitrogen is of main concern <br /> • Found in organic waste (i.e., mostly human and food sources) <br /> • Limited to 10,422 lbs. per year <br /> • Used 68%in 2024 <br /> • Noticeable increase in 2023 and 2024 <br /> 12 <br />