Buster Simpson, along with Jann Rosen-Queralt and Ellen Sollod, was a planning artist on Brightwater project, contributing to the Brightwater Art Plan that served as a guide to all of the artwork in the Treatment System. Simpson also created an iconic art piece at the Center—Bio Boulevard+Water Molecule.
The bright red Water Molecule, with its two white oxygen atoms, feeds reclaimed water through a purple "straw" and a 100-foot long purple pipe to a natural filtration system. Within the plant and around the world purple pipe signifies reclaimed water. Here, the pipe is held up by tetrapod forms that the artist envisions as civic workers. Placed at the entrance to the site, Bio Boulevard+ Water Molecule celebrates the final product of Brightwater.