R.27 



LEGEND: 



n SINGLE PIEZOMETER IN TILL 

 B NESTED PIEZOMETER IN TILL 

 5 SITE NUMBER 



/N\ 



SCALE 

 500 1000 METRES 



10 MILE 



0.5 



U.S.A. 

 PIEZOMETER INSTALLATION SITES-SCHEDULE "A" PIEZOMETERS IN TILL 



A2- 16 



