Figure 1. The comparison among the Kd whole sand, the Kd coatings, the Kd naked sand, the Kd sonicated sand but without separation of coatings, the Kd HCl treated sand and the sum of Kd coatings * fraction of coatings and Kd of naked sand * f naked sand.


A. Sample 1. Coarse sand from Port Jefferson at depth 100-120 cm.

B. Sample 5. Medium-coarse sand from Port- Jefferson at depth 160-180 cm


C. Sample 6. Coarse sand from Port- Jefferson at depth 120-140 cm.

D. Sample 7. Coarse sand from Port-Jefferson at depth 200-220 cm.