Fig. 1From: Clustering and prioritization to design a risk-based monitoring program in groundwater sources for drinking waterClustering of source water target data (a) and suspect data (c), plotted on PCA axis 1 and 2, and plotted according to total concentration and number of detected chemicals per sample for target data in µg/L (b) and suspect data in I.S. eq/L (d)Back to article page