You are here:
IDENTIFYING THE CAUSES OF BIOLOGICAL IMPAIRMENT IN STREAMS: THE CAUSAL ANALYSIS/DIAGNOSIS DECISION INFORMATION SYSTEM (CADDIS)
Citation:
CORMIER, S. M. IDENTIFYING THE CAUSES OF BIOLOGICAL IMPAIRMENT IN STREAMS: THE CAUSAL ANALYSIS/DIAGNOSIS DECISION INFORMATION SYSTEM (CADDIS). Presented at State and EPA Meeting on Water Quality Standards, Washington, DC, March 08 - 09, 2005.
Impact/Purpose:
The purpose of this research project is to provide methods, tools and guidance to Regions, States and Tribes to support the TMDL program. This research will investigate new measurement methods and models to link stressors to biological responses and will use existing data and knowledge to develop strategies to determine the causes of biological impairment in rivers and streams. Research will be performed across multiple spatial scales, site, subwatershed, watershed, basin, ecoregion and regional/state.
Description:
The causal analysis/diagnosis decision information system (CADDIS) is being developed by EPA's Office of Research and Development and Office of Water to assist states and tribes in identifying unknown causes of biological impairment of the nation's waterbodies. This will be a valuable system for monitoring, TMDL, permitting and other key water programs. The CADDIS system is being constructed in phases. CADDIS I, which is now available for trial use, is a user-friendly web-based system that helps states and tribes walk through the stressor identification process developed by ORD in 2000. Close to a dozen states are now using this procedure. CADDIS II will be an expansion of the system that will provide a literature database on stressor-response relationships, case studies of successful state and tribal stressor identifications and models of these successful efforts that other states can use in new situations. Attendees will have an opportunity to provide input on DADDIS II design.