UPM - Rapid Assessment Tool © WRc plc 2010 When considering improvements for small urban • Automatic calibration of the sewer hydraulics to agree wastewater systems, the combined impact of intermittent with the information from an InfoWorks model of the and continuous discharges needs to be evaluated. A catchment. The automatic calibration feature is simple, rapid but reliable approach is necessary, important because it allows users to rapidly create a commensurate with the scale of such systems. WRc's UPM simplified sewer network from the available Rapid Assessment Tool (UPM-RAT) is specifically information. designed for this purpose. Based on the principles of • Options for using different runoff models. integrated modelling, as described in the Urban Pollution Management (UPM) Manual, its key features are: • A fully integrated model of CSOs, storm tank, WwTW and river reach. • Minimum data requirements - saves time. • Concise on-screen results output showing: • CSO spill frequencies and volumes • storm tank spill frequencies and volumes • river reach performance against Fundamental Intermittent Standards (FIS) • river reach performance against percentile standards. • Simulations take only a few minutes and can be • Continuous, rapid simulation over multi-year periods readily repeated with different assumptions. Each rainfall can be tailored to regional patterns. run generates a results file that can be printed to provide a full audit trail. • User-friendly interface - easy to use. WRc's UPM-RAT will be of interest to both Utilities wanting to develop upgrading proposals and Environmental Regulators who wish to check the acceptability of such proposals. For enquiries about UPM - Rapid Assessment Tool please contact: Cheryl Fulker Tel: +44 (0) 1793 865185 Email: [email protected] Dr Karen Murrell Tel: +44 (0) 1793 865110 Email: [email protected]