OHA previously monitored OPC data using two methods: (1) through the NPDS system using a web-based interface; and (2) through ToxiTrack, poison center database software. ToxiTrack software is a companion software to Toxicall † , the data collection software system utilized by OPC. Data from Toxicall were transferred via VPN to OHA, where ToxiTrack software was used to view data. Although both of these systems provide unique capabilities for viewing summarized case data, there are limitations in their functionality for situational awareness. ESSENCE offers OHA the ability to easily analyze and report on these data and geospatial graphing capabilities without having to use additional statistical and GIS software.