Figure 6 Location Map of the Quashnet River, Massachusetts, showing the experimental reach and locations of focused GW discharge into the river investigated by Rosenberry et al . (2016a) , annotated as A, B, C, D, E, F, and summarized in Table 3 . Surface flow is from north to south.

Figure 7 Electrode drift data measured in the Quashnet River, Massachusetts. Drift measurements at the upstream end of the reach (black) were made in a low-velocity eddy near site B ( Fig. 6 ). Drift measurements at the downstream end of the reach (gray) were made in a high-velocity current

Figure 8 Raw voltages measured between two Cu-CuSO 4 electrodes of a 1.5 m long floating dipole, floating along the experimental reach in the Quashnet River ( Fig. 6 ): a) North-to-south profile of drift-corrected voltages logged in the Quashnet River; b) Windowed standard deviations

Table 3 Geospatial data from Rosenberry et al . (2016a) (their Table 3) for seepage meters installed in the Quashnet River. Bolded locations represent cold thermal anomalies based on fiber optic distributed temperature sensing.