An exuberant attempt to organize “the city” around its hidden hydrological systems. In reference to the “Four Environmentalisms” thesis from 2020, this first thesis probably falls somewhere between the “Machine” and the “Prosthetic”. Notably, how it functions as an autonomous Machine is unclear, if only finding legibility in its structural aesthetic. It does clearly do work to daylight and connect local hydrological systems and so might succeed by the rubric of the Prosthetic. However, the project as a whole somewhat falters when confronted with the question of what the “Architecture is doing” compared to the programs it houses. Like many environmental projects from the oughts, this building “does things” primarily through what it contains (green houses, civic events, unseen filtering beds) rather than through Form, Tectonics, Phenomena or measurable Performances.