Environmental Health Complaints for Baltimore City, January 2001. The dataset was geocoded against the Baltimore City Street Centerline file (Centerln.xxx) generated on 11/11/99 by the Department of PublicWorks. This is part of a collection of 221 Baltimore Ecosystem Study metadata records that point to a geodatabase. The geodatabase is available online and is considerably large. Upon request, and under certain arrangements, it can be shipped on media, such as a usb hard drive. The geodatabase is roughly 51.4 Gb in size, consisting of 4,914 files in 160 folders. Although this metadata record and the others like it are not rich with attributes, it is nonetheless made available because the data that it represents could be indeed useful.