Table 5 (cont'd). Demonstration results for total petroleum hydrocarbons in
soil and water.
c. Concentrations (mg/kg) of TPH in soil samples contaminated with DRO/bun-
ker C.
Technology developer
Sample
no./ID
Ref. lab
QA lab
Visual
HM2000
SDM-1/PE (401)*
520
NA**
810
900
SDM-2/PE (401)
510
NA
1500
950
SDM-3/PE (401)
570
NA
2000
580
SDM-4/PE (401)
590
NA
690
2000
SDM-25/PE (2480)
4900
NA
6800
7700
SDM-26/PE (2480)
3900
NA
9000
8500
SDM-27/PE (2480)
NA
NA
4900
3500
SDM-28/PE (2480)
NA
NA
6000
9000
SDM-6/Matrix Spike (250)
190
NA
480
740
SDM-7/Matrix Spike (250)
200
NA
400
820
SDM-23/Matrix Spike (1000)
900
NA
2500
1300
SDM-24/Matrix Spike (1000)
400
NA
2500
1900
SDM-12/Sample
27000
NA
7500
19000
SDM-21/Sample Dup. (SDM-12)
19000
NA
7500
26000
SDM-15/Sample
18000
NA
15000
17000
SDM-22/Sample Dup. (SDM-15)
22000
NA
18000
20000
SDM-5/Matrix Blank
NR†
56
48
20
SDM-8/Sample
<10††
NA
<10
150
SDM-9/Sample
59000
24000
26000
43000
SDM-10/Sample
<10
NA
<10
89
SDM-11/Sample
1300
NA
400
170
SDM-13/Sample
<10
NA
48
65
SDM-14/Sample
<10††
390
99
210
SDM-16/Sample
<10
NA
10
31
SDM-17/Sample
86
190
260
310
SDM-18/Sample
<10
NA
50
30
SDM-19/Sample
17
NA
52
52
*Values in parenthesis are the spiked concentration in mg TPH/kg or the sample duplicate.
**Not analyzed.
†Not reported.
††21 mg TPH/kg found in motor oil range organic compounds.
TPH/kg spiked; Table 5e, M1, 430 mg TPH/kg vs.
Aside from all of the laboratory results perhaps
being biased low for the groundwater samples, there
a 1000 mg TPH/kg spiked).
Samples held beyond the contracted analysis
are several additional concerns that pertain to the refer-
period of 14 days. WG-14, -15, and -16 were held
ence laboratory results:
for 29 days prior to analysis. Two of these samples
Failure to yield an average TPH value that was
were matrix spikes that had reported TPH concen-
trations less than half the target concentration
within the certified range of acceptance for DRO
(Table 5b, WG-16, 11 mg TPH/L vs. 24 mg TPH/
in soil PE samples (Table 5c, SDM-1, -2, -3, and
-4, 548 39 mg TPH/kg vs. certified range of
L spiked).
Failure to report values for samples that were sup-
acceptance 194 to 509 mg TPH/kg; SDM-25 and
26, 4400 707 mg TPH/kg vs. certified range of
posedly distributed. No values were reported for
SDM-5, WDM-1, WDM-16, WDM-17, WDM-10,
acceptance 1200 to 3160 mg TPH/kg).
Matrix spike values that were either twice or half
and WDM-11.
Poor agreement with the TPH values reported by
the target concentration (Table 5a, SG-7, 200 mg
TPH/kg reported vs. a 100 mg TPH/kg spiked;
the QA laboratory (Tables 5c, d, and e), and for
BTEX in Table 6, while there was good agreement
Table 5c, SDM-24, 400 mg TPH/kg vs. a 1000 mg
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