Blue-painted manhole cover in Austin, Texas with Sigma logo.
An overhead view of a dark gray metal manhole cover in a green grass area, the manhole cover is partially spray painted blue. The middle of the manhole is spray painted blue, there are three blue circles going out from the center of the manhole cover, the outermost circle outlines the entire manhole cover. There is text on the right side of the cover that reads "SIGMA" and toward the middle that reads "AUSTIN, TEXAS". Below the manhole cover is a smaller metal cover that is mostly spray painted blue with letters carved into it. The letters carved into the cover are "A / WW". There are leaves and pieces of grass on the larger manhole cover, some of the grass and leaves around the cover are spray painted blue as well.