Title: Software Tool: Cost Analysis of Remediation Options (CARO) 
Resource Type: software --> decision support tools 
Country: EU Projects 
Year: 2003 
Producers or distributor Welcome Consortium 
Author / Producer Type: EC Project 
Web link for product information: http://euwelcome.nl/kims/tools/index.php?index=10  
EUGRIS Keyword(s): Contaminated land-->Cost benefit analysis-->Cost benefit analysis overview
Contaminated land-->Cost benefit analysis-->Tools
Contaminated land-->Risk management-->Selection of remediation options
Short description: Where and to what extent should remediation measures be taken to achieve our cleanup goals? Which are the remediation technologies that promise to be the most cost-efficient at a megasite? CARO is a tool intended to support decision-makers in answering these questions. CARO’s methodology is based on a system dynamic modelling approach, where the megasite is represented by a risk-based source-pathway-receptor concept and the dynamics predominantly by a mass flux model. The “dynamics“ of the model are obviously also based on the performance of soil and groundwater source remediation technologies as well as groundwater plume management options and combinations of these. CARO addresses the rather complex nature of megasites at a relatively high abstraction level, taking into account that the amount of available data usually does not allow description of the situation at a megasite in detail but that an approximate approach is required. Simplification is also a prerequisite to compare effects and costs of possible management scenarios and remediation technologies in a comparatively fast and efficient way. CARO simulates effects (reduction of mass and mass flow) and costs over time. In doing so, essential information is provided that will help site managers identify the most cost-efficient remediation setup i.e. the setup that meets the prefixed goals at a minimum of costs. CARO should be taken as a pre-design tool that is supposed to be used in conjunction with a groundwater and transport model. The models will serve two purposes: (i) the provision of input data for CARO (e.g. travel time from source to receptor) and (ii) the detailed analysis of those management scenarios that turned out to be most efficient in the course of the CARO application. Note that CARO should not be taken as a management scenario producer: it does not automatically set up simulations to produce optimal remediation strategies; the user with his/her expertise has to do that task. 
Link to Project(s): WELCOME Development of Integrated Management System (IMS) for Prevention and Reduction of Pollution and Reduction of Pollution of Waterbodies at Contaminated Industrial Areas
Submitted By: Dr Stefan Gödeke WhoDoesWhat?      Last update: 23/08/2009