Fig. 3. Synoptic survey data for 27 June 2000. (a) Ground water seepage (Q_j, Eq. [4], solid triangle) along the stream course and comparison of cumulative seepage (Q_j, solid line) to measured streamflow (open circles). Letters along x axis indicate downstream ends of Reaches A–I (Fig. 2). (b) NO₃^– concentrations in ground water seepage (solid triangle) and comparison of discharge-weighted mean concentration (Q_jC_j/Q_j, solid line) with measured baseflow concentration (open circles).