Specifications include, but are not limited to: collecting field stormwater infrastructure inventory data, creating dynamic 2D hydrologic & hydraulic models, producing 2D inundation maps, completing level of service evaluations, developing master plans for storm water infrastructure improvements, and creating water quality models for various watersheds. ; • Conducting reviews of storm drainage inventory data (maintained by the Town in an ArcGIS database); • Conducting field investigations to verify existing inventory data and identifying gaps in inventory discovered by comparing desktop review of data in combination with field investigations; • Collecting survey-grade location and attribute data for stormwater assets including culverts, pipes, ditches, inlets, manholes, junction boxes, risers, weirs, gates, valves, flap gates, control structures, headwalls, and bridges including.