3.5 Additional data
Drive-point piezometers (1.9 cm inside diameter) were installed within
the second spring branch (P2), below AWS1 (P3), to the west of the
stream between GS1 and GS2 (P4) and in the lakebed (P5) (Figure 1).
Pressure transducers (In-Situ, MiniTroll, accuracy ~1
mm) were placed in the piezometers to measure groundwater levels and
temperatures. Continuous water level data were verified bi-weekly with
manual water-level measurements. Lake water level was measured by a
pressure transducer (Solinst, Levelogger, accuracy ±0.3 cm), in a lake
stilling well. Stream dimension surveys were completed on June 26 and
August 2, 2019 whereby stream depth was recorded every 10 cm along the
width of the stream, at 24 separate transects. Twelve transects were
located between GS1 and GS2 at approximately 20 m intervals and the
remaining 12 transects were located at approximately 50 m intervals
between GS2 and GS4. The width of the transects ranged from 1.3 to 4.4
m.