WASTE_TREATMENT_STORAGE_DISPOSAL_IDEM_IN is a point shapefile that contains treatment, storage, and disposal (TSD) site locations in Indiana, provided by personnel of Indiana Department of Environmental Management, Office of Land Quality (IDEM, OLQ) as of July 11, 2003 and was subsequently updated on June 3, 2004, January 4, 2005, April 25, 2005, July 27, 2006, January 24, 2007, June 4, 2009, October 20, 2009, and April 16, 2010. The data set provided by IDEM was in an ESRI geodatabase format and the feature class was named TSD. WASTE_TREATMENT_STORAGE_DISPOSAL_IDEM_IN is attributed with facility names and federal identification numbers. The following is excerpted from the metadata provided by IDEM, OLQ for the source feature class TSD: This dataset consists of Treatment, Storage, and Disposal Sites. Industrial Waste Compliance GPS Points locate the entrance to facilities that generate and/or manage hazardous waste, non-hazardous industrial waste, and solid waste. TSD - Treatment Storage and Disposal Facility is a facility that may treat, store, and /or dispose hazardous waste. The facility is usually also a generator of hazardous waste.