This links talks about how they are having to place pumps around the sphinx to keep the paws dry from water coming 'up'....but they just call it
ground water.
www.drhawass.com...
In 1987 a Japanese team from Waseda University (Tokyo), under the direction of Sakuji Yoshimura carried out an electromagnetic sounding survey of the Khufu Pyramid and Sphinx. They reported evidence of a tunnel oriented north-south under the Sphinx, a water pocket 2.5 to 3 m below surface near the south hind paw, and another cavity near the north hind paw.
