The mark consists of the letters W, I, S and E appearing independently in black with white edge shading, each letter in a black-boundaried box having deep blue coloring at the bottom of the box, the hue of which gradually lightens from the bottom of the box to the top and wherein the same letters arc black in the phrase Watershed Information SystEm while the rest of the lettering in the phrase is blue and a gray-shaded background appears behind and between the aforementioned boxes and the circles joining the black-boundaried boxes have variable blue shading.