One embodiment provides a pipe inspection robot, including: a chassis configured to traverse through an interior of a water or sewer pipe; a water quality probe comprising a first end that couples to the chassis and a sensing end distal thereto; an electric motor configured to reposition the sensing end of the water quality probe with respect to the chassis; said electric motor acting to move the sensing end of the water quality probe to reposition the sensing end proximate to fluid containing water located proximate to a bottom part of the chassis; the sensing end configured to contact the fluid containing water for contact sensing of water quality data. Other aspects are described and claimed.