. >> so far carl enchew? supervisor chiu: thank you, president chiu. primarily the purpose of the environmental document is to give policyy makers the information we need to determine whether some of the policies are acceptable. song as it lays out the at nivets, the information we need to judge that project at a future date, then we could say it's a complete document. i want to be clear on a couple of issues that have come up a bit. with rampeds to the issue of rent control units being demolished and suppose spro -- supposedly throughout development agreement provided again, in terms of a developmental document and whether the completeness is there, the criteria that we should be using is to say does the loss of rent control units potentially lead to a approximately or environmental impact. is that right? as opposed to a human impact because this is sort of the conversation that we're hearing here. >> city attorney. i do want to make it leer that the -- clear that the eir before you assumed as part of the project description that the demolishing would