Observation well WSA Tyner was constructed in 1965 to a depth of 113.69 metres in Empress Group sands and gravels of the Tyner Valley aquifer. The aquifer is believed to receive recharge vertically through the overlying confining layer as well as laterally through adjacent aquifers. Groundwater flow in the Tyner Valley is southwesterly towards the South Saskatchewan River into which it discharges.
Seasonal water level minimums in WSA Tyner typically occur in late summer and early fall with maximums occurring in the spring to early summer period. These characteristics have been attributed to seasonal loading. The hydrograph's lowest water level of about 581.8 metres occurred when monitoring began in 1965. From that time until early 2007, when the well reached its record high of about 582.6 metres, water levels showed an increasing trend. Following that, water levels have declined in the past couple of years, but remain above the levels experienced prior to the mid-1980's. Typically, seasonal fluctuations are 0.10 to 0.20 metres, but some years show less than 0.10 metres and in 2011 about 0.30 of water level decline occurred.
WSA Tyner yields water of the sodium-sulphate type with a sum of ions concentration of about 2823 mg/L.
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