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FIGURE 2 ESTIMATION OF INFILTRATION /INFLOW <br />Meter Shed 046 <br />Estimated Residential Equivalent Connections <br />Inch Miles of Sewer pipe (w/o services) <br />Method 1 -Assume no I/I in January <br />Monthly Flow Data (mad) <br /> Annual <br />Average January Peak Mo. <br />2004 4.033 3.573 4.535 June <br />2005 3.890 3.770 4.033 June <br />2006 3.807 3.712 4.406 April <br />Calculated GPD aer connection <br /> Annual <br />Average January Peak Mo. <br />2004 377 334 424 <br />2005 364 352 377 <br />2006 356 347 412 <br />10,700 <br />1392.4 in-mi <br />I/I <br />(mgd) (MG annual) (%) <br />0.460 167.90 11.41 <br />0.120 43.80 3.08% <br />0.095 34.67 2.50% <br /> 246.38 5.66% <br />2006 rate $ 1,543 <br />Total Cost $ 380,157 <br />Annual $ 126,719 (3 yr avg) <br />Method 2 -Assume early morning fow flow is entirely inflitration (clear water) <br />May -September 2007 <br />8/30/2007 Daily Flow 3.624 mgd <br />Dry Day -Early Morning Flow 78,180 gph 1.876 mgd <br />Net Wastewater 1.748 mgd <br />Infiltration rate: (EMF/in mi) 1,348 gpd/in mi <br />Wastewater per connection: 163 gpd/connection <br />Peak Flow 9/20/07 <br />Peak Hour Rate: 21:00 hrs <br />Dry day flow at time 463,800 <br />186,700 gph <br />gph 11.131 <br />4.481 mgd <br />mgd <br />INFLOW 277,100 gph 6.650 mgd <br />Normal Peak <br />Adjusted Peak <br />Calc. P/A Ratio <br />Inflow per connection <br />5.120 <br />11.77 mgd <br />3.25 <br />622 gpd/connection <br />Inflow per in mile 4,776 gpd/in mi <br />