1 inch equals 100 feet 
Legend 
Acquisition Boundary 
Ponding Limits, 100-Year Storm, WSE=3835.94 
Pond Limits, Weir EL=3840.00 
Berm 
Figure 5 
Challenger Wash Storm Water 
Detention/Sedimentation Basin 
P:\FEMA\Nogales\GIS\mxd\Chihuahua.mxd 
0 100 20050 
Feet 
Pipe Drain-Tributary 
Maintenance Road 
Source: 
Imagery: City of Nogales 
Tetra Tech Inc., 2002 
URS Corporation, 2003 
Working Draft 
Calle NogalesCalleNogalesCalleEmpalme CalleEmpalmeOutlet Basin 
Inlet Basin 1 inch equals 100 feet 
Legend 
Acquisition Boundary 
Ponding Limits, 100-Year Storm, WSE=3835.94 
Pond Limits, Weir EL=3840.00 
Berm 
Figure 5 
Challenger Wash Storm Water 
Detention/Sedimentation Basin 
P:\FEMA\Nogales\GIS\mxd\Chihuahua.mxd 
0 100 20050 
Feet 
Pipe Drain-Tributary 
Maintenance Road 
Source: 
Imagery: City of Nogales 
Tetra Tech Inc., 2002 
URS Corporation, 2003 
Working Draft 
Calle NogalesCalleNogalesCalleEmpalme CalleEmpalmeOutlet Basin 
Inlet Basin