The mark consists of the words "Portland Water" in white Baskerville font. The word "Portland" is placed above the word "Water". The letter "P" is to the right of the two words, in varying shades of green, with the inside of the letter consisting of dots in the top right, wavy lines towards the bottom, and an outline of the state of Oregon in the middle. At the bottom of the "P", there is one wavy line with a blend of dark purple to dark blue to dark red to red. The background is in light teal to mint green. It has solid navy blue diagonal lines and light blue, light purple, navy blue, and red dotted lines connected to the solid navy blue lines, creating a diagonal pattern.