RMA "Below the Liner" Sample
No. 41238
(19.53 g soil/5,000 mL hexane)
RESTEK Pesticide Standard A-1
RESTEK Pesticide Standard B-1
Total Resolved Pesticides =
(8001,600 pg/L)
(400800 pg/L)
1,010 mg/kg dry wt.
RMA "Soil-Amended Basin F
RMA "Below the Liner"
RMA "Below the Liner"
Sludge from Above the Liner"
Sample No. 24093
Sample No. 41249
Sample No. 24216
(21.74 g soil/5,000 mL hexane)
(21.29 g soil/5,000 mL hexane)
(20.15 g soil/5,000 mL hexane)
Total Resolved Pesticides =
Total Resolved Pesticides =
Total Resolved Pesticides =
110 mg/kg dry wt.
1,280 mg/kg dry wt.
3,270 mg/kg dry wt.
Figure 2. Electron capture detector (ECD) capillary gas chromatographic (GC) profiles from two RESTEK
Pesticide Standard solutions and hexane extracts of RMA soil and sludge samples specially prepared to allow
direct qualitative and quantitative comparisons of pesticide burdens among the samples (i.e., a constant nominal
weight [20 g] of each sample was extracted/diluted with a constant volume [5000 mL] of solvent. All chromato-
grams were obtained under identical instrument conditions (1.0 L injected; 30 m, DB-1701 megabore column;
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