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Fig. 3. Comparison of the traditional hydrographic separation model with the alternative model used in this study. The traditional method yields a maximum value of gauged baseflow (QBF), a minimum gauged stormflow (QSF), and therefore apparently negative values of stormflow nitrogen concentration (CSF) and storm loads (LSF) during some periods during storms. The alternative procedure yields a minimum QBF, maximum value of QSF, and only rarely negative values of CSF and LSF.