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10/9/2003 1:38 PM 187727281 phila-impervious_cover.zip
10/9/2003 2:48 PM 164169270 phila-impervious_shp.zip
1/31/2008 5:09 PM 187732497 PhiladelphiaImperviousSurfaces1996.zip
2/11/2013 11:43 AM 478661738 PhiladelphiaImperviousSurfaces201201.zip
4/19/2017 4:31 PM 259318899 PhiladelphiaImperviousSurfaces2015_old.zip