The T03 tracer plot is a 30 m by 30 m area overlying the subsurface drain up gradient from access manhole T03. It is located on the north edge of the "G" transect between G5 and G6. This plot is located on nearly level gound. This photo was taken in the very early spring after fall KCl tracer application.
Below is a photo of the instrumentation installed at the access manholes. This particular manhole is T03, but the instrumentation is similar at T04. To the left of the steel manhole is the "Sigma" automated waste water sampler. The sampler was used to automatically take samples every six hours during recharge events. A view into a manhole is shown in the next photo.
Data collected at access manhole T03 consisted of effluent chloride concentration and drain flow rate. A summary of this data and precipitation measured at the overlying tracer plot is presented here.