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• <br /> 17 <br /> IMPERVIOUS SURFACE CHARACTERISTICS OF <br /> FIVE-ACRE PARCELS SOLD IN UNIVERSITY LAKE WATERSHED <br /> JANUARY, 1988 TO JULY, 1989 <br /> (2) (3) (4) Total Existing Proposed <br /> (1) (1) (1) Structure Driveway Street Impervious Impervious Impervious <br /> Map ID Map Size Size Area . Area Area Area Surface Surface <br /> Number Reference (Acres) (Sq.Ft.) (Sq.Ft.) (Sq.Ft.) (Sq.Ft.) (Sq.Ft.) Ratio Ratio Difference <br /> 1 7.118..2A 5.62 244807 1568 4160 2640 8368 3.42% 4.00% 0.58% <br /> 2 7.117..60 5.72 249163 Undv Undv 4770 4770 1.91% 4.00% - 2.09% <br /> 3 7.117..64 5.00 217800 3543 1840 4680 10063 4.62% 4.00% -0.62% <br /> 4 7.117..65 5.08 221285 Undv Undv 3330 3330 1.50% 4.00% 2.50% <br /> 5 7.117..67 5.00 217800 4544 3600 641 8785 4.03% 4.00% -0.03% <br /> 6 7.117..59 5.52 240451 3252 1400 9720 14372 5.98% 4.00% -1.98% <br /> 7 6.21..17 5.03 219107 Undv Undv 1634 1634 0.75% 4.00% 3.25% <br /> 8 6.29..10 5.17 225205 1834 960 8800 11594 5.15% 4.00% -1.15% <br /> 9 6.36..4c 4.61 200812 Undv Undv 6206 6206 3.09% 4.00% 0.91% <br /> 10. - 6.21..7J 4.75 206910 842 4400 2772 8014 3.87% 4.00% 0.13% <br /> SUMMARY - UNDEVELOPED LOTS (WV) <br /> Total 20.44 890366 Undv Undv 15940 15940 1.79% 4.00% 2.21% <br /> Average 5.11 222592 Undv Undv 3985 3985 1.79% 4.00% 2.21% <br /> 3U MMARY - DEVELOPED LOTS _. _ <br /> Total. 31.06 1352974 _ 15583 16360 29Z53 61196 4.52% 4.00% -0.52% <br /> Average' 5.18 225496 2597 2727 4876 10199 4.52% 4.00% -0.522% <br /> source: (1) Orange County Land Records System. <br /> (2) Orange County Land Records System and Building Permit Records. <br /> - Structures include variety of situations, ranging from dwellings w/decks only to dwellings w/decks, garages, <br /> and sheds. <br /> (3) Orange County Aerial Photographs, and Building and Improvements Permit Data. <br /> Driveways considered to be eight feet in width. <br /> (4) Orange County Aerial Photographs and Subdivision Plats. Street area determined by public or <br /> private classification, property frontage, and one-half of surface area. Public roads <br /> considered to be 22 feet in width, Class A Private Roads 18 feet in width, Class 8 12 feet in width, and <br /> Class C eight feet in width. - <br /> • <br />