Figure F27. Interstitial water geochemical data for Site 1239. Open squares = calcium concentrations. Values below the detection limit (1.0 mM for sulfate, 0.1 µM for manganese, 0.2 mM for ammonium, and 0.1 µM for barium) are plotted at zero. Note that blank correction for manganese (0.3 µM) was significant compared to most of the measured concentrations, so this profile should be interpreted with caution.

Figure F27. Interstitial water geochemical data for Site 1239. Open squares = calcium concentrations. Values below the detection limit (1.0 mM for sulfate, 0.1 µM for manganese, 0.2 mM for ammonium, and 0.1 µM for barium) are plotted at zero. Note that blank correction for manganese (0.3 µM) was significant compared to most of the measured concentrations, so this profile should be interpreted with caution.