This report describes the combined sewer overflow (CSO) infrastructure of Troy, NY as a landscape at four different scales. It is intended to allow for a more integrated understanding of the problem of combined sewer overflows in the Capital Region generally, and Troy specifically, as identified in the Long Term Control Plan (LTCP) of the NYS DEC. In particular, it includes the role of public space, hydrography, soil type, tidal change, topography, and forest cover alongside the plumbing of the city. By collecting, producing and analyzing spatial data we draw conclusions about the relations between water quality, land use, and public space. The study concludes that the waterfront and historic area (“River City”) should not a primary strategic zone for green infrastructures that focus on stormwater detention, but should instead focus on social cohesion and identity, flood prevention, and access to the river. The role of the steep “Forest City” running north-south on the steep topographic areas could be protected as habitat and recreation space to preserve current infiltration and detention performance. The suburban and rural areas on the “High City” should in most cases be the areas targeted for detention and retention of stormwater because of their infiltration potential.