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known for resistivity range of 1–40 Xm(Çınar et al., 2015). The <br />blue to dark green zones (30–130 Xm) were interpreted as wet soil <br />zones, which have been reported to vary between 30 and 150 Xm <br />(Guérin et al., 2004; Dahlin et al., 2010). A TP excavated around 69– <br />71 m (TP11) and at 4.5 m depth on AL2 (Fig. 5b), for example, indi- <br />cated wet soil as shown in Fig. 6a. On the other hand, lighter green <br />zones (130–530 Xm), such as between 0 and 28 m and 34–40 m in <br />Fig. 5a, 0–20 m in Fig. 5b, and 13–20 m in Fig. 5c (depth 5m) <br />were interpreted as regions of semi-wet soil as evidenced by <br />TP10 on AL2 (Fig. 5b) and shown in Fig. 6g. Furthermore, the light <br />green to yellow zones (530–2200 Xm) were interpreted as regions <br />of dry soil as dry soil can register resistivity >1000 Xm(Leroux <br />et al., 2007). This was verified by TP5 on AL1 (Fig. 5a) and TP9 on <br />AL2 (Fig. 5b) as shown in Fig. 6h. <br />Based on findings from Madesjö glass dump (Fig. 3a), yellow to <br />light orange zones (1000–4600 Xm) were expected to be demoli- <br />tion waste zones. A TP excavated around such a zone at 30 m <br />(TP3) in Fig. 5a revealed demolition waste (bricks) with an <br />Fig. 3.Resistivity profiles at Madesjö glass dump; (a) line ML1; (b) line ML2; and (c) 3-D view of the two lines. <br />218 R.N. Mutafela et al./Waste Management 106 (2020) 213–225