15 WET DENSITY (TOP 5 CM) 14 13 12 1 Ww & OFF OD ~w o NUMERICAL AVERAGE 1.53 40.14 yo “-20-8 NUMBER 10 [5 1.1 _| 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 DENSITY (=, cM3 FIGURE B-22-1. DISTRIBUTION OF THE AVERAGE WET DENSITY (OVER THE TOP 5 CM) FOR THE 73 AREAS MEASURED WITH THE NUCLEAR DENSITY GAUGE