The Solinst Model 3001 Well Cap Assembly for Leveloggers is designed to fit 2" wells (or 4" wells with Reducer), and provides options for installing Leveloggers with wireline, Kevlar rope, or using a Direct Read Cable. The well cap base provides a tight friction fit onto the well casing and is secured to the base with a twist lock. For further security, a 3/8 (9.5mm) shackle diameter lock can be used. The Well Cap is also vented to allow for the equalization of barometric pressure in the well. When installing Leveloggers using a Stainless Steel wireline or Kevlar rope suspension, the water level dataloggers are securely supported when tied off to the eyebolt included on the underside of the well cap insert. When installing Leveloggers using a Direct Read Cable, the cable simply fits inside the convenient well cap insert hole, when the red dust cap is removed. For Levelogger installations where a Barologger is to be installed in the same well, the well cap supports up to two Direct Read Cables. Even with the two Direct Read Cables installed, there is still an access hole available for manual water level measurements or groundwater sampling, without disturbing the down-hole Leveloggers.