Portiaod Disposal Site 

 Depth Difference 



January 1997 CDM Syrvey vs. February 1996 Baseline Survey 



43° 34.000'N - 



43° 33.800'N - 



43° 33.600'N - 



70°01.800'W 

 m 200 m 



70° OLBOOT/V 



70° 01. 400 TA/ 



Figure 4-21. Depth difference comparison of the January 1997 CDM survey versus the 

 February 1 996 basehne survey relative to the pseudo-UDM footprint (red) 

 The Portland Disposal Site Capping Demonstration Project, 1995-1997 



