Laserfiche WebLink
4 <br />4.1 <br />• Perfluorinated Compounds (PFAS) <br />• Disinfection Byproducts <br />• Cyanotoxin Chemicals <br />• Other chemicals used in industrial and manufacturing practices <br />The majority of these contaminants are from anthropogenic, or human activity, sources, and thus <br />necessitates the need to be vigilant in protecting City wells from pollution. As discussed further in <br />Chapter 5, the City's wells are well protected from anthropogenic pollution, but continued <br />safeguarding of the wells will be crucial in preventing a new contaminant in the City's drinking <br />water supply that requires treatment. <br />Although it isn't possible to predict what contaminants will be regulated in the future, having <br />flexibility in a treatment system is important to provide treatment options for possible future <br />contaminations, new regulations for contaminants, and as testing abilities continue to improve. <br />Water remand <br />Ramsey's average daily water demand from 2009 to 2019 ranged from 1.6 to 1.9 million gallons <br />(MGD). The maximum daily demand, usually occurring during summer months due to lawn <br />watering and other non -consumptive use, ranged from 4.1 to 5.5 MGD. <br />The projected annual average water demand for the City is expected to increase to 3.5 MGD and <br />up to a projected daily maximum of 10.3 MGD in the year 2040. A list of future water projections <br />from the City's Water Supply Plan is included below. <br />Table 8 — Projected Water Demands <br />96 Projected <br />Year Total <br />_idropulation <br />Projecte p Projected <br />Population kmAyerage Daily <br />Served mand (MGD) <br />Projected Maximum <br />Daily Demand (MGD) <br />2020 27,550 13,921 <br />1.8 <br />5.3 <br />2025 <br />30,450 <br />18,547 <br />2.4 <br />7.0 <br />2030 <br />33,350 <br />22,987 <br />3.0 <br />8.7 <br />2040 <br />39,150 <br />26,988 <br />3.5 <br />10.3 <br />Adequacy of Existing Water Supply <br />As discussed in Section 1.2, if a centralized water treatment plant is constructed, Wells No. 1 and <br />2 would not initially be connected to the water treatment plant due to the significant expense <br />required to extend trunk watermain to the water treatment plant. The existing firm capacity <br />without considering Wells No. 1 and 2 is 4,850 gpm or 7.0 MGD. Table 8 predicts that Ramsey <br />has sufficient firm capacity without Wells No. 1 and 2 through the year 2025. When maximum <br />day demands reach 7.0 MGD, Ramsey should consider drilling another well. <br />By the year 2040, Ramsey will need 10.3 MGD in firm capacity. To provide this capacity without <br />using Wells 1 and 2, an additional 3 wells will be needed by 2040 (assuming 850 gpm per well). <br />FEASIBILITY STUDY RAMSY 154354 <br />Page 13 <br />