Poorhotep was a misogynist...the women were the water bearers for the crew. on the body of the Pyramid. Most were in the quarries where one could expect some welling of water perhaps, and/or in between ( whether pushing pulling hauling or levitating is that other topic that shall not be named).
The water is believed to have lapped at the foot of the Temples at the foot of the Causeways. whether directly or via channeling.