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Land Use Categories <br />Existing land use was used to determine each property's contribution to the <br />utility. Table 3 illustrates typical runoff curve numbers. <br />Using these criteria, land use categories and the respective curve numbers for <br />use in the runoff equation are illustrated below. For the respective land uses, <br />the curve numbers (CNs) are applied to determine the amount of runoff for <br />an area resulting from a specified amount of rainfall as illustrated in Figure 1. <br />The contribution towards the storm water utility is equated to the percentage <br />of the total runoff for each property type. <br />Figure 1 — NRCS /SCS Runoff Model Runoff Example <br />NRCS /SCS Runoff Model <br />1.80 - <br />1.60 - <br />Runoff <br />(Inches) <br />1.40- <br />1.20 - <br />1.00 - <br />0.80- <br />0.60- <br />0.40- <br />0.20- <br />0.00 —fir m, . 1 > i .r _— � : P ..> _ ._:.�. . <br />• C` o� o o o � o � 0 o <br />`e o � � <br />0 <br />m <br />0 CO CO \ 1, <br />Q 0' °'c <br />�� A °m V <br />dzr `NCO ,_°� <br />Q <br />Feasibility Study 112316 <br />City of Lino Lakes, Minnesota Page 17 <br />