TMA-5 (EX-256)
November 1999
5
Surface Soil
2
24 13
N
Height= 11.3 cm
W
E
4
S
9
7
DNT
7.0 cm
TNT
Am-DNT
3
2
31.2 cm
52
14
89
12
29 88
69
16
250
88
18
84
a. EX-256.
7
4
TMA-5 (EX-261)
November 1999
Surface Soil
N
Height= 11.3 cm
W
E
4
2
S
15
100
DNT
7.0 cm
TNT
Am-DNT
31.2 cm
15
7
124
172
589
9
248
5
4
11
1270
b. EX-261.
Figure 9. Locations of various ERCs detected in surface soil near buried TMA-5 land
mines in November 1999.
g/kg. A subset of soil extracts near the TMA-5 mines
perimeter of the mine and diffuses along the surface.
Additional surface sampling needs to be done to better
was selected and analyzed using HPLC to see whether
define the extent of surface contamination for the TMA-
3-NA was accumulating because of transformation of
5 mines.
1,3-DNB. Included in this set were 11 surface samples
1,3-DNB was only detected in one surface sample
and the results of these HPLC analyses are provided at
near TMA-5 mines, and, in that sample, the concentra-
the end of Appendix E. No 3-NA was detectable in any
tions of 2-ADNT and 4-ADNT were greater than 500
of these surface samples near the TMA-5 mines, al-
25
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