| Abstract/Description or Keywords |
Concern about quantities, quality and sustainability of groundwater resources within the Okanagan Valley. This study constitutes one project listed in the GAOB scientific research program. The study is a preliminary investigation aimed at characterizing the aquifer media surrounding provincial monitoring wells in Okanagan Valley using slug testing methods, analyzing groundwater level fluctuations using a cumulative precipitation departure (CPD) graph, and using the hydrographs to estimate recharge using the water table fluctuation (WTF) method. The hydraulic conductivities determined from slug testing range between ~10-7 m/s for silty clay aquifers, and ~10-3 m/s for gravel and sand aquifers . The values obtained from slug testing correspond well with published values of hydraulic conductivities . The cumulative precipitation departure method indicated that six wells in the study area are primarily recharged by precipitation. The water table fluctuation method indicated that mean monthly recharge rates range between 24 mm and 318 mm, although, the usefulness of the each value may depend on the adherence to assumption s in the WTF method. |
