Table 8
Explosives Concentrations in Proximity to a Single Low-order Detonation of a 155-mm
Round on the Artillery Range at Fort Lewis (g kg-1 except where noted)1
Sample
2
TNT
2,4DNT
2,6DNT
4ADNT
2ADNT
1,3-DNB
1,3,5TNB
2,5DNT
Number
Location
3
4
104
Residue
99.96%
0.04 %
<d
<d
<d
<d
<d
<d
107
Surface
1.51e7
4.01e4
<d
1.1e5
1.02e5
1.21e3
1.47e4
<d
5
111
5 cm
7.1e5
1.e4
264
1.46e5
1.53e5
281
<d
368
5
112
10 cm
4.63e4
1.96e4
41.2
2.e4
2.97e4
37.4
141
25.9
5
6
108
15 cm W
2.5e3
9.4
<d
194
188
<d
62.5
<d
5 6
109
15 cm E
886
52.7
6.1
3.e3
3.38e3
<d
66.0
<d
5 6
110
15 cm S
1.5e4
221
7.7
7.23e3
7.69e3
10.4
382
<d
1
Values are for surface soils except where noted. The following undetected analytes were excluded from the table: HMX, RDX,
nitroglycerin, 2,5-dinitrotoluene, 3,4-dinitrotoluene. The following analytes were excluded from the table, but were detected in
sample 111 (concentrations are given in parentheses): 2,4,5-trinitrotoluene (69.0), and 2,3,4-trinitrotoluene (17.9). The following
analytes were excluded from the table, but were detected in sample 112: 4-amino-2-nitrotoluene, 2-amino-4-nitrotoluene, 3,5-
dinitroaniline, 3,5-dinitrotoluene, 3-nitroaniline.
2
Locations are relative to the low-order round.
3
High-explosive residue remaining in the low-order shell.
4
Less than detection limits.
5
Depth beneath the round.
6
Direction from the round: W = west, E = east, S = south.
30,000
RTX-5
Sample #108
25,000
20,000
15,000
10,000
5,000
0
3
17
5
7
9
11
13
15
Time (min.)
Figure 21. Chromatogram of soil sample collected 15 cm from position of a low-order 155-mm howitzer
round
43
Chapter 2 Characterization of Explosives Contamination at Military Firing Ranges
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