Table 2
Method Detection Limits of Nitroaromatics, Nitramines, and Nitrate
Esters in Soil Determined by GC-ECD (Walsh and Ranney 1999)
Limits, :g kg-1
Analyte
1,3-Dinitrobenzene
0.8
2,6-Dinitrotoluene
0.8
2,4-Dinitrotoluene
0.8
1,3,5-Trinitrobenzene
3
2,4,6-Trinitrotoluene
1
RDX
3
4-Amino-2,6-dinitrotoluene
1.5
2-Amino-2,4-dinitrotoluene
2.5
Tetryl
20
HMX
25
3,5-Dinitroaniline
2
Nitroglycerin
20
PETN
25
o-Nitrotoluene
15
m-Nitrotoluene
12
p-Nitrotoluene
10
Analysis of fragments from low-order hand grenade detonation
A casing from a low-order detonation of a hand grenade was recovered at the
Fort Lewis hand grenade range. Residual Composition B, the main charge for
M67 grenades, was evident on the surface of the metal casing. Small portions of
the hand grenade case were placed into 5.0 mL acetone and allowed to dissolve
for 5 min, after which time an aliquot was removed for analysis. After an
additional 15 min of soaking, a second aliquot was removed for analysis. Both
acetone extracts were diluted 1:100 with 25 percent acetone and 75 percent
acetonitrile. The resulting solutions were analyzed using the separations
described in SW-846 Method 8330 (USEPA 1994).
Sampling and analysis of water samples from monitoring wells and
seeps
Water samples were collected from five groundwater monitoring wells
(MW01 through MW04 and MW07) and five seeps (A1ASPO1 through
A1ASPO5) (Figure 7). The wells were sampled by micropurge (low-flow)
techniques using a low-flow pump. Groundwater was discharged via Teflon-lined
18
Chapter 2 Characterization of Explosives Contamination at Military Firing Ranges
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