2008–2009 data collected from 1,710 m and 1,800 m indicated that the sump levels rose in two distinct periods: continuously from May–July 2009 and with an isolated pulse in October 2008, both sumps reaching a maximum flood depth of 12 m. New logger locations at depths of 1,800 m, 1,980 m (Kvitochka sump) and 2,140 m (Dva Kapitanas sump).
2008–2009 data collected from 1,710 m and 1,800 m indicated that the sump levels rose in two distinct periods: continuously from May–July 2009 and with an isolated pulse in October 2008, both sumps reaching a maximum flood depth of 12 m. New logger locations at depths of 1,800 m, 1,980 m (Kvitochka sump) and 2,140 m (Dva Kapitana's sump).