Table 3. Results of SOUND/epic and independent laboratory analyses* of RMA Basin F soil
sample no. 24216 before and after DCR treatment with 64.7% CaO.
TCLP
Raw waste
raw waste
TCLP
before
DCR-treated
before
DCR-treated
Waste constituent
treatment
product
treatment
product
Moisture content1 (%)
11.7
10.1
Gravimetric oil and grease1
10,700
12,900
(mg/kg dry wt.)
Total resolved hydrocarbons1--
FID GC (mg/kg dry wt.)
2,420
2,400
Total resolved pesticides1--
ECD GC (mg/kg dry wt.)
3,270
2,150
(g/L)
(g/L)
Individual constituents
(ng/g dry wt.) (ng/g dry wt.)
Toluene
11
< 4.0
< 1.9
< 1.9
Volatiles--
Ethylbenzene
4.1 J
< 2.9
< 1.4
< 1.4
GC/MS EPA 8260
m,p-Xylene
24
< 4.2
< 2.0
< 2.0
o-Xylene
19
< 3.2
< 1.5
< 1.5
n-Propylbenzene
3.9 J
< 2.9
< 1.4
< 1.4
1,3,5-Trimethylbenzene
19
< 3.2
< 1.5
< 1.5
1,2,4-Trimethylbenzene
28
< 2.9
< 1.4
< 1.4
sec-Butylbenzene
2.3 J
< 2.9
< 1.0
< 1.0
1,3-Dichlorobenzene
5.0 J
< 2.9
< 1.4
< 1.4
1,4-Dichlorobenzene
19
< 3.2
0.47
< 0.081
n-Butylbenzene
3.6 J
< 3.2
< 1.5
< 1.5
1,2-Dichlorobenzene
11
< 3.4
< 1.6
< 1.6
Total PCBs
< 13,000
< 12,000
Pesticides and PCBs--
Alpha-BHC
2,400
2,300
ECD GC EPA 8081
Beta-BHC
< 136
540
Aldrin
390,000
270,000
52
30
Dieldrin
260,000
180,000
90
51
Endrin
140,000
100,000
74
44
Endosulfan II
< 165
1,700
Endrin aldehyde
20,000
7,900
Endrin ketone
3,200
1,700
N-Nitroso-di-n-propylamine
1,000
82 J
Semivolatiles--
1,2,4-Trichlorobenzene
210
120
< 1.9
< 1.9
GC/MS EPA 8270
Naphthalene
38
30
< 2.7
< 2.7
Hexachlorobutadiene
6,900
630
3.4 J
< 1.8
2-Methylnaphthalene
130
41 J
Dibenzofuran
34 J
< 11
Fluorene
70
32 J
Phenanthrene
110
92
Anthracene
88
<21
Fluoranthene
75
<16
Chrysene
35 J
26 J
* Analyses denoted by superscript1 completed by SOUND/epic, all others by U.S. Army Corps of Engineers
Environmental Laboratory, Hubbardston, Massachusetts.
J=Estimated value; less than the practical quantitation limit.
transfer to the CaO before hydration. There-
formed Ca(OH)2 generated during the DCR pro-
fore, the slight increase in the gravimetric oil
cess. More importantly, there is a significant
and grease value (Table 3) is no doubt due to
decrease in the total resolved pesticides as mea-
the addition of the ADM soy oil. This increase
sured by ECD GC at SOUND/epic, and this is
is partially offset by oil sequestration/adsorp-
also reflected in the individual pesticides re-
tion (even against organic solvent extraction)
ported by the Corps of Engineers laboratory.
into the voids, cracks, and fissures of the newly
These reductions in total and individual pesti-
9
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